1 Wed Jan 20 18:15:08 1999 Dave Brolley <brolley@cygnus.com>
3 * function.c (assign_parms): Save and restore setting of
6 Wed Jan 20 12:51:42 1999 Mark Mitchell <mark@markmitchell.com>
8 * arm.md: Use MEM_COPY_ATTRIBUTES where appropriate throughout.
9 Pass MEM_SCALAR_P to arm_gen_store_multiple where appropriate.
11 Tue Jan 19 21:20:52 1999 Richard Henderson <rth@cygnus.com>
13 * recog.c (pop_operand): New function.
14 * recog.h (pop_operand): Declare it.
15 * genrecog.c (preds): Define it.
17 * expr.c (do_jump_for_compare): Handle conditional branch expanders
18 emitting multiple jump instructions.
19 * jump.c (condjump_label): New function.
20 * rtl.h (condjump_label): Declare it.
22 Tue Jan 19 21:08:20 1999 Richard Henderson <rth@cygnus.com>
24 * expr.c (emit_move_insn_1): Revert 17 Dec change. Don't emit
25 clobber during or after reload.
27 Tue Jan 19 16:56:03 1999 Richard Henderson <rth@cygnus.com>
29 * genoutput.c (name_for_index): New function.
30 (scan_operands, validate_insn_alternatives): Use it.
31 * genrecog.c (insn_name_ptr_size): New variable.
32 (make_insn_sequence): Fill in insn_name_ptr.
33 (merge_trees): Use it.
35 Tue Jan 19 16:37:36 1999 Richard Henderson <rth@cygnus.com>
37 * i386/isc.h (TARGET_DEFAULT): Define symbolicly.
38 * i386/isccoff.h, i386/next.h, i386/sco.h, i386/sco5.h: Likewise.
39 * i386/scodbx.h, i386/sequent.h, i386.unix.h: Likewise.
41 Tue Jan 19 15:00:10 1999 Jeffrey A Law (law@cygnus.com)
43 * loop.c (NUM_STORES): Delete.
44 (loop_store_mems): Turn into an EXPR_LIST of MEMs.
45 (prescan_loop): Properly initialize loop_mems_idx.
46 (note_addr_stored): Simplify using list structure instead of
48 (invariant_p, check_dbra_loop, load_mems): Similarly.
50 * flow.c (invalidate_from_autoinc): New function.
51 (mark_set_1, mark_used_regs): Use it.
53 * Makefile.in (protoize.o, unprotoize.o): Depend on Makefile.
55 1999-01-19 Vladimir N. Makarov <vmakarov@cygnus.com>
57 * invoke.texi (-mlong-double-64): New option description.
59 1999-01-19 Jim Wilson <wilson@cygnus.com>
61 * libgcc2.c: Change all uses of LONG_DOUBLE_TYPE_SIZE to
62 LIBGCC2_LONG_DOUBLE_TYPE_SIZE.
63 (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): New. Set to LONG_DOUBLE_TYPE_SIZE
65 * i960/i960.h (MULTILIB_DEFAULTS): Define to mnumerics.
66 (CPP_SPECS): Add -mlong-double-64 support.
67 (TARGET_FLAG_LONG_DOUBLE_64, TARGET_LONG_DOUBLE_64): New.
68 (TARGET_SWITCHES): Add -mlong-double-64 support.
69 (LONG_DOUBLE_TYPE_SIZE): Likewise.
70 (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
71 * i960/vx960-coff.h (MULTILIB_DEFAULTS): Define to msoft-float.
72 (CPP_SPECS): Add -mlong-double-64 support.
73 * i960/t-960bare (MULTILIB_OPTIONS): Add mlong-double-64.
74 (MULTILIB_DIRNAMES): Add ld64.
75 * i960/t-vxworks960 (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Likewise.
77 Tue Jan 19 11:54:04 1999 Jason Merrill <jason@yorick.cygnus.com>
79 * calls.c (expand_call): Strip a TARGET_EXPR if we're passing by
82 Tue Jan 19 14:51:36 1999 David Edelsohn <edelsohn@mhpcc.edu>
84 * rs6000.c (offsettable_addr_operand): Delete.
85 (offsettable_mem_operand): New function.
86 * rs6000.h (PREDICATE_CODES): Reflect function change.
87 (RS6000_SAVE_TOC): Represent address as MEM.
88 * win-nt.h (RS6000_SAVE_TOC): Same.
89 * rs6000.md (indirect calls): Change offsettable address parameter
90 to offsettable memory parameter.
92 Tue Jan 19 10:24:53 1999 Mark Mitchell <mark@markmitchell.com>
94 * rtl.h (rtx_def): Update documentation.
95 (MEM_IN_STRUCT_P): Likewise.
96 (MEM_SCALAR_P): New macro.
97 (MEM_COPY_ATTRIBUTES): Likewise.
98 (MEM_SET_IN_STRUCT_P): Likewise.
99 * rtl.texi (MEM_SCALAR_P): Document.
100 * alias.c (canon_rtx): Use MEM_COPY_ATTRIBUTES.
101 (fixed_scalar_and_varying_struct_p): New function. Use
102 MEM_SCALAR_P rather than !MEM_IN_STRUCT_P.
103 (aliases_everything_p): Likewise.
104 (true_dependence): Use them.
105 (write_dependence_p): New function, containing code common to
106 anti_dependence and output_dependence.
107 (anti_dependence): Use it.
108 (output_dependence): Likewise.
109 * calls.c (save_fixed_argument_area): Don't clear
111 (expand_call): Use MEM_SET_IN_STRUCT_P.
112 (emit_library_call): Don't clear MEM_IN_STRUCT_P.
113 (emit_library_call_value): Likewise.
114 (store_one_arg): Use MEM_SET_IN_STRUCT_P.
115 * combine.c (simplify_rtx): Use MEM_COPY_ATTRIBUTES.
116 (make_extraction): Likewise.
117 (simplify_shift_const): Likewise.
118 (gen_lowpart_for_combine): Likewise.
119 * cse.c (gen_lowpart_if_possible): Use MEM_COPY_ATTRIBUTES.
120 * emit-rtl.c (operand_subword): Likewise.
121 (change_address): Likewise.
122 * explow.c (stabilize): Use MEM_COPY_ATTRIBUTES.
123 * expr.c (protect_from_queue): Use MEM_COPY_ATTRIBUTES.
124 (emit_group_store): Use MEM_SET_IN_STRUCT_P.
125 (copy_blkmode_from_reg): Likewise.
126 (store_field): Likewise.
127 (expand_expr): Remove bogus guesswork setting MEM_IN_STRUCT_P
128 heuristically. Use MEM_SET_IN_STRUCT_P.
129 (get_memory_rtx): Likewise.
130 * final.c (alter_subreg): Use MEM_COPY_ATTRIBUTES.
131 * function.c (assign_stack_temp): Clear MEM_SCALAR_P and
132 MEM_ALIAS_SET on newly returned MEMs.
133 (assign_temp): Use MEM_SET_IN_STRUCT_P.
134 (put_reg_into_stack): Likewise.
135 (fixup_var_refs1): Use MEM_COPY_ATTRIBUTES.
136 (gen_mem_addressof): Use MEM_SET_IN_STRUCT_P.
137 (assign_parms): Likewise.
138 (expand_function): Likewise.
139 * integrate.c (expand_inline_function): Likewise.
140 (copy_rtx_and_substitute): Use MEM_COPY_ATTRIBUTES.
141 * loop.c (note_addr_stored): Remove check on MEM_IN_STRUCT_P.
142 * optabs.c (gen_move_insn): Use MEM_COPY_ATTRIBUTES.
143 * print-rtl.c (print_rtx): Print /f for frame_related.
144 * recog.c (validate_replace_rtx_1): Use MEM_COPY_ATTRIBUTES.
145 * reload1.c (reload): Copy MEM_SCALAR_P as well.
146 * stmt.c (expand_decl): Use MEM_SET_IN_STRUCT_P.
147 (expand_anon_union_decl): Use MEM_COPY_ATTRIBUTES.
148 * varasm.c (make_decl_rtl): Use MEM_SET_IN_STRUCT_P.
149 (output_constant_def): Likewise.
150 * a29k.c (a29k_set_memflags_1): Take scalar_p.
152 (a29k_set_memflags): Use it.
153 * alpha.c (get_aligned_mem): Use MEM_COPY_ATTRIBUTES.
154 * c4x.c (c4x_scan_for_ld): Likewise.
155 * h8300.c (fix_bit_operand): Likewise.
156 * m88k.c (legitimize_address): Likewise.
157 (block_move_loop): Likewise.
158 (block_move_no_loop): Likewise.
159 (block_move_sequence): Likewise.
160 (m88k_builtin_saveregs): Use MEM_SET_IN_STRUCT_P.
161 * mips/abi64.h (SETUP_INCOMING_VARARGS): Likewise.
162 * rs6000.c (expand_block_move_insn): Use MEM_COPY_ATTRIBUTES.
163 * sh.c (sh_builtin_saveregs): Use MEM_SET_IN_STRUCT_P.
164 * arm.h (arm_gen_load_multiple): Take scalar_p.
165 (arm_store_load_multiple): Likewise.
166 * arm.c (arm_gen_load_multiple): Likewise.
167 (arm_gen_store_multiple): Likewise.
168 (arm_gen_movstrqi): Treat MEM_SCALAR_P like MEM_IN_STRUCT_P.
170 Tue Jan 19 12:30:37 EST 1999 Andrew MacLeod <amacleod@cygnus.com>
172 * optabs.c (emit_libcall_block): Add a REG_EH_REGION reg note to all
173 calls within a libcall block to indicate no throws are possible.
174 * flow.c (find_basic_blocks, find_basic_blocks_1): Don't look for
175 libcall blocks. Don't add edges to exception handlers if we see
176 a REG_EH_REGION note with a value of 0.
177 (make_edges): Override active_eh_region vector if the call has a note
178 indicating the call does not throw.
180 1999-01-19 Vladimir N. Makarov <vmakarov@cygnus.com>
182 * config/rs6000/sysv4.h (CC1_SPEC): Fix correct numbers of {}.
184 Tue Jan 19 06:26:30 1999 Jeffrey A Law (law@cygnus.com)
186 * Makefile.in (cccp.o, cpplib.o): Depend on Makefile.
188 Mon Jan 18 09:56:41 1999 Jason Merrill <jason@yorick.cygnus.com>
190 * invoke.texi (C++ Dialect Options): Document -fno-rtti.
192 1999-01-18 Vladimir N. Makarov <vmakarov@cygnus.com>
194 * invoke.texi (-mcpu=740, -mcpu=750): New options.
195 (-m(no-)multiple, -m(no-)string): Describe cases for PPC740 &
198 1999-01-18 Michael Meissner <meissner@cygnus.com>
200 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
201 supported with -mcpu=xxx.
202 (processor_type): Add PROCESSOR_PPC750.
203 (ADJUST_PRIORITY): Call rs6000_adjust_priority.
204 (RTX_COSTS): Supply costs for 750 multiply/divide operations.
205 (rs6000_adjust_priority): Add declaration.
207 * rs6000.c (rs6000_override_options): -mcpu={750,740} now sets the
208 processor type as 750, not 603. Allow -mmultiple and -mstring on
209 little endian 750 systems.
210 (rs6000_adjust_priority): Stub for now.
211 (get_issue_rate): The PowerPC 750 can issue 2 instructions/cycle.
213 * rs6000.md (function/cpu attributes): Add initial ppc750 support.
215 * sysv4.h (STRICT_ALIGNMENT): Don't force strict alignment if
217 (CC1_SPEC): Pass -mstrict-align if little endian, and not
219 (CC1_ENDIAN_{LITTLE,BIG,DEFAULT}_SPEC): Endian specific configs.
220 (SUBTARGET_EXTRA_SPECS): Add cc1 endian specs.
222 * {sysv4,eabi}le.h (CC1_ENDIAN_DEFAULT_SPEC): Override, default is
225 * t-ppcgas (MULTILIB_*): Delete obsolete Solaris multilibs.
227 Mon Jan 18 12:03:08 1999 Gavin Romig-Koch <gavin@cygnus.com>
229 * config/mips/mips.md (div_trap): Split div_trap_mips16
231 (div_trap_normal,div_trap_mips16): Correct the length attributes.
233 Mon Jan 18 11:48:28 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
235 * cpplib.c (special_symbol): Qualify a char* with the `const' keyword.
236 Instead of writing to const char *buf directly, use a non-const
237 variable `wbuf' to allocate and write a string, then set buf = wbuf.
239 * cppulp.c (user_label_prefix): Qualify a char* with the `const'
242 * dyn-string.c (dyn_string_append): Likewise.
244 * dyn-string.h (dyn_string_append): Likewise.
246 * final.c (end_final, output_operand_lossage, asm_fprintf): Likewise.
248 * output.h (end_final, output_operand_lossage, asm_fprintf,
249 named_section, decode_reg_name, make_decl_rtl, user_label_prefix):
252 * profile.c (init_branch_prob): Likewise.
254 * toplev.c (set_target_switch, vmessage,
255 v_message_with_file_and_line, v_message_with_decl,
256 v_error_with_file_and_line, v_error_with_decl, v_error_for_asm,
257 verror, vfatal, v_warning_with_file_and_line, v_warning_with_decl,
258 v_warning_for_asm, vwarning, vpedwarn, v_pedwarn_with_decl,
259 v_pedwarn_with_file_and_line, vsorry, v_really_sorry,
260 open_dump_file, dump_rtl, clean_dump_file,
261 print_version, print_single_switch, print_switch_values,
262 dump_base_name, debug_args, lang_independent_options,
263 user_label_prefix, documented_lang_options, target_switches,
264 target_options, print_time, pfatal_with_name, fatal_io_error,
265 fatal_insn, default_print_error_function, print_error_function,
266 report_error_function, error_with_file_and_line, error_with_decl,
267 error_for_asm, error, fatal, warning_with_file_and_line,
268 warning_with_decl, warning_for_asm, warning, pedwarn,
269 pedwarn_with_decl, pedwarn_with_file_and_line, sorry,
270 really_sorry, botch, output_quoted_string, output_file_directive,
271 open_dump_file, rest_of_decl_compilation, display_help, main):
274 * toplev.h (print_time, fatal, fatal_io_error, pfatal_with_name,
275 fatal_insn, warning, error, pedwarn, pedwarn_with_file_and_line,
276 warning_with_file_and_line, error_with_file_and_line, sorry,
277 really_sorry, default_print_error_function, report_error_function,
278 rest_of_decl_compilation, pedwarn_with_decl, warning_with_decl,
279 error_with_decl, error_for_asm, warning_for_asm, output_quoted_string,
280 output_file_directive, botch): Likewise.
282 * tree.h (make_decl_rtl): Likewise.
284 * varasm.c (strip_reg_name, named_section, decode_reg_name,
285 make_decl_rtl): Likewise.
287 Mon Jan 18 11:35:49 1999 Gavin Romig-Koch <gavin@cygnus.com>
289 * Makefile.in (TCL_LIBRARY): Use 'cd' to find the library
290 directory logically rather than physically.
292 Mon Jan 18 09:05:37 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
294 * loop.c (insert_bct): Hide the definition of variables
295 `increment_direction', `compare_direction', `add_iteration' and
298 * recog.c (mode_dependent_address_p): Mark parameter `addr' with
299 ATTRIBUTE_UNUSED. Mark label `win' with ATTRIBUTE_UNUSED_LABEL.
300 (mode_independent_operand): Mark label `lose' with
301 ATTRIBUTE_UNUSED_LABEL.
303 * regclass.c (n_occurrences): Remove prototype and definition.
305 * reload.c (find_reloads_address_1): Mark variable `tem' with
308 * reload1.c (reload): Cast the first two arguments of `bcopy' to PTR.
310 * sbitmap.c (sbitmap_copy): Likewise.
312 * scan-decls.c (scan_decls): Hide label `handle_comma'.
314 * toplev.c (output_lang_identify): Mark prototype with
317 * tree.c (make_node): Cast the first argument of `bzero' to PTR.
318 (make_tree_vec): Likewise.
321 * varasm.c (assemble_static_space): Mark variable `tem' with
324 Mon Jan 18 04:28:36 1999 Nathan Sidwell <nathan@acm.org>
326 * Makefile.in (GCOV_INSTALL_NAME): New macro.
327 (install-common): Use it.
329 (uninstall): Use correct names for protoize and unprotoize.
331 Mon Jan 18 03:52:56 1999 Christian Bruel <Christian.Bruel@st.com>
332 Jeffrey A Law (law@cygnus.com)
334 * flow.c (last_mem_set): Delete variable. References removed.
335 (mem_set_list): New variable.
336 (life_analysis): Initialize and finalize alias analysis.
337 (propagate_block); Initialize mem_set_list. Clear for CALL_INSNs.
338 (insn_dead_p): For a store to memory, search the entire mem_set_list
340 (mark_set_1): Kill entries on the mem_set_list for aliased writes or
341 changes to their addresses. Add new entries to the mem_set_list for
342 memory writes writes.
343 (mark_used_regs): Kill entries on the mem_set_list which may be
344 referenced by a load operation.
346 Mon Jan 18 01:01:02 1999 Jeffrey A Law (law@cygnus.com)
348 * alias.c (base_alias_check): Add missing return for differing
351 Mon Jan 18 00:36:13 1999 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
353 * mips-tdump.c (print_file_desc): Handle unknown filenames and
354 missing local symbols.
356 Sun Jan 17 21:04:31 1999 Richard Henderson <rth@cygnus.com>
358 * jump.c (rtx_renumbered_equal_p): Special case CODE_LABEL.
360 * system.h (bcopy): Implement with memmove not memcpy.
362 Sun Jan 17 19:23:20 1999 Jeffrey A Law (law@cygnus.com)
364 * Makefile.in (cppulp.o): Add dependencies.
366 * i386.md (integer conditional moves): Add missing earlyclobbers.
368 * regmove.c (optimize_reg_copy_1): Undo Aug 18 change. Update
369 REG_N_CALLS_CROSSED and REG_LIVE_LENGH if and only if we change
370 where a register is live.
372 Sun Jan 17 03:20:47 1999 H.J. Lu (hjl@gnu.org)
374 * reg-stack.c (subst_stack_regs_pat): Abort if the destination
375 of a FP conditional move is not on the FP register stack.
377 Sun Jan 17 01:15:04 PST 1999 Jeff Law (law@cygnus.com)
379 * version.c: Bump for snapshot.
381 Sat Jan 16 23:40:33 1999 Jeffrey A Law (law@cygnus.com)
383 * reload1.c (reload_cse_regs_1): Do not call
384 reload_cse_simplify_operands for an insn with asm operands.
386 * cccp.c (print_help): Fix typos.
387 * cpplib.c (print_help): Fix typos.
388 * toplev.c (f_optiosn): Fix typos.
389 (documented_lang_options): Fix typos.
391 Sat Jan 16 21:48:17 1999 Marc Espie (Marc.Espie@openbsd.org)
393 * gcc.c: (do_spec_1): Fix obvious typo.
395 Sat Jan 16 19:31:07 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
397 * c-decl.c (duplicate_decls): If `warn_traditional', warn when
398 a non-static function declaration follows a static one.
400 * invoke.texi (-Wtraditional): Document the extra check now done
403 Sat Jan 16 15:13:46 1999 Jeffrey A Law (law@cygnus.com)
405 * pa.md (shadd): Create shadd insns, even if the result of the shift is
406 needed without the addition.
408 Sat Jan 16 10:48:16 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
410 * sh.md (movdf, movsf): Temporary workaround for no_new_pseudos lossage.
412 Fri Jan 15 23:44:37 1999 Richard Henderson <rth@cygnus.com>
414 * sparc.c (sparc_issue): Add hypersparc/sparclite86x entries.
416 Fri Jan 15 22:30:04 1999 David Edelsohn <edelsohn@mhpcc.edu>
418 * rs6000.h (CONST_OK_FOR_LETTER_P): Do not assume 32-bit CONST_INT.
419 * rs6000.c (u_short_cint_operand, add_operand, logical_operand,
420 non_add_cint_operand, non_logical_cint_operand): Likewise.
421 (get_issue_rate): Add CPU_PPC604E case.
422 * rs6000.md (movdi, !TARGET_POWERPC64 splitters): Handle 64-bit hosts.
424 Fri Jan 15 18:42:12 1999 Richard Henderson <rth@cygnus.com>
426 * expr.c (queued_subexp_p): Make public.
427 * expr.h (queued_subexp_p): Declare it.
428 * recog.c (asm_operand_ok): New function.
429 (check_asm_operands): Use it. After reload, use constrain_operands
431 * recog.h (asm_operand_ok): Declare it.
432 * stmt.c (expand_asm_operands): Use it to try harder to make
433 asms initially satisfy their constraints.
435 Fri Jan 15 17:43:59 1999 Jeffrey A. Law <law@rtl.cygnus.com>
437 * sparc.h (LEGITIMIZE_RELOAD_ADDRESS): Do not create
438 (mem (lo_sum (...)) for TFmode unless TARGET_V9.
440 Sat Jan 16 12:47:15 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
442 * config/c4x/c4x.md (not_repeat_reg): Allow ldp instruction
443 in delay slot of RPTBD.
445 Sat Jan 16 12:26:40 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
447 * config/c4x/libgcc.S (___divhi3, ___modhi3): Fix long long
448 divide and modulo sign problem.
450 Fri Jan 15 11:02:31 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
452 * unroll.c (loop_iterations): Return 0 if the last loop insn
453 is not a jump insn or if the loop has multiple back edges.
455 Thu Jan 14 22:38:41 1999 Jeffrey A Law (law@cygnus.com)
457 * unroll.c (find_splittable_givs): For a DEST_ADDR giv, do not share
458 a register with another DEST_ADDR giv if the address is not valid.
460 * pa.c (hppa_expand_epilogue): Save and restore the static chain
461 around the call to mcount.
463 * h8300.h (ASM_OUTPUT_LABELREF): Use asm_fprintf, not fprintf.
465 * stmt.c (expand_end_case): Use emit_cmp_and_jump_insns to avoid
466 generating non-canonical rtl.
468 1999-01-14 Vladimir N. Makarov <vmakarov@cygnus.com>
470 * config/i960/i960.c (i960_output_move_double_zero,
471 i960_output_move_quad_zero): New functions for moving zeros.
472 (i960_output_move_double, i960_output_move_quad): Additional code
473 for situation when moving unaligned register group.
475 * config/i960/i960.h (i960_output_move_double_zero,
476 i960_output_move_quad_zero): The function definitions.
478 * config/i960/i960.md (movdi+1, movti+1): Usage of the functions.
480 1999-01-13 Vladimir N. Makarov <vmakarov@cygnus.com>
482 * config/i960/i960.c (i960_function_prologue): New code (optimal
483 solution) for saving global registers in local registers.
484 (form_reg_groups, reg_group_compare, split_reg_group): New
485 functions used by the code.
486 (reg_group): New structure definition for the new code.
488 Wed Jan 13 20:12:37 1999 Richard Henderson <rth@cygnus.com>
490 * integrate.c (expand_inline_function): Recognize (mem (addressof))
491 and substitute. Copy the return value from there into a new pseudo.
493 Wed Jan 13 16:47:00 1999 Catherine Moore <clm@cygnus.com>
495 * config/arm.c (output_func_epilogue): Check TARGET_ABORT_NORETURN
496 before generating a call to abort for volatile functions.
497 * config/arm.h (ARM_FLAG_ABORT_NORETURN): Define.
498 (TARGET_ABORT_NORETURN): Define.
499 (abort-on-noreturn): New option.
501 Thu Jan 14 13:52:42 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
503 * config/c4x/c4x.md (in_annul_slot_3): Correctly allow unarycc
504 and binarycc operations in 3rd annulled delay slot!
506 Wed Jan 13 16:16:44 1999 Catherine Moore <clm@cygnus.com>
508 * config/arm.c (output_func_epilogue): Check TARGET_ABORT_NORETURN
509 before generating a call to abort for volatile functions.
510 * config/arm.h (ARM_FLAG_ABORT_NORETURN): Define.
511 (TARGET_ABORT_NORETURN): Define.
512 (abort-on-noreturn): New option.
514 Wed Jan 13 13:30:08 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
516 * cccp.c (xstrdup): Renamed from `savestring'. All callers changed.
517 Remove prototype which we get from libiberty.h.
519 * collect2.c (xstrdup): Likewise.
521 * genextract.c (xstrdup): Likewise for `copystr'.
522 (mybzero): Remove it and use `memset' instead.
524 * genoutput.c (mybcopy, mybzero): Remove these. All callers changed
525 to use `memcpy' and `memset' instead.
527 * genrecog.c (xstrdup): Renamed from `copystr'. All callers
528 changed. Remove prototype.
529 (mybcopy, mybzero): Remove these and use memcpy/memset.
531 Wed Jan 13 00:59:04 1999 Jeffrey A Law (law@cygnus.com)
533 * mips.h (LOAD_EXTEND_OP): Correct for SImode and CCmode moves when
534 generating code for TARGET_64BIT.
536 Tue Jan 12 14:05:37 1999 David Edelsohn <edelsohn@mhpcc.edu>
538 * rs6000.c (print_operand, cases 'm' and 'M'): Do not depend on
539 HOST_WIDE_INT word-size.
540 (rs6000_stack_info): Remove redundant alignment of fpmem.
542 Tue Jan 12 14:05:37 1999 Richard Henderson <rth@cygnus.com>
544 * rs6000.c (short_cint_operand): Remove CONSTANT_P_RTX handling.
545 (u_short_cint_operand, reg_or_cint_operand, logical_operand): Likewise.
546 (input_operand): Adjust CONSTANT_P_RTX handling.
547 * rs6000.h (PREDICATE_CODES): Remove CONSTANT_P_RTX references.
548 * rs6000.md (movsi): Adjust CONSTANT_P_RTX handling.
549 (movhi, movqi): Remove CONSANT_P_RTX handling.
550 (movdi): Adjust CONSTANT_P_RTX handling.
552 Tue Jan 12 10:23:24 1999 Stan Cox <scox@cygnus.com>
554 * mips.md (call_value_internal3c): New pattern for -mips16 -mlong-calls.
556 1999-01-12 Manfred Hollstein <manfred@s-direktnet.de>
558 * m68k/mot3300.h (ADD_MISSING_POSIX, ADD_MISSING_XOPEN): Define to
559 ensure all prototypes necessary for building libio will be available.
560 * m68k/xm-mot3300.h (ADD_MISSING_POSIX, ADD_MISSING_XOPEN): Remove
561 definitions here as they are not host specific.
562 * m88k/sysv3.h, m88k/xm-sysv3.h: Likewise.
564 Tue Jan 12 02:53:46 1999 Richard Henderson <rth@cygnus.com>
566 * cse.c (cse_insn): Never prefer (const (constant_p_rtx)).
568 Tue Jan 12 02:36:10 PST 1999 Jeff Law (law@cygnus.com)
570 * version.c: Bump for snapshot.
572 Tue Jan 12 01:30:19 1999 Richard Henderson <rth@cygnus.com>
574 * rtl.c (rtx_alloc): Use memset instead of inline loop.
576 * recog.h (recog_op_alt): Declare extern.
578 Tue Jan 12 00:23:31 1999 Richard Henderson <rth@cygnus.com>
580 * function.c (purge_addressof_1): If the note accesses a mem+addressof
581 in a wider mode than any replacement, adjust the cached replacement.
582 Cache trivial substitutions as well.
584 Tue Jan 12 00:06:00 1999 Richard Henderson <rth@cygnus.com>
586 * Makefile.in (OBJECTS): Add sbitmap.o.
587 (BASIC_BLOCK_H): Add sbitmap.h.
588 * basic-block.h: Move simple bitmap code to sbitmap.h.
589 * flow.c: Move simple bitmap code to sbitmap.c
590 * sbitmap.h, sbitmap.c: New files.
592 Mon Jan 11 23:51:50 1999 Richard Henderson <rth@cygnus.com>
594 * alpha.h (TARGET_SWITCHES): Document switches.
595 (TARGET_OPTIONS): Likewise.
597 * alpha/elf.h (ASM_FINISH_DECLARE_OBJECT): Use HOST_WIDE_INT_PRINT_DEC.
599 Mon Jan 11 22:54:14 1999 Richard Henderson <rth@cygnus.com>
601 * tree.c (new_alias_set): Return zero if !flag_strict_aliasing.
603 Mon Jan 11 22:36:01 1999 Richard Henderson <rth@cygnus.com>
605 * basic-block.h (basic_block_head): Rename to x_basic_block_head.
606 (basic_block_end): Rename to x_basic_block_end.
607 (BLOCK_HEAD, BLOCK_END): Update.
609 * caller-save.c: Change basic_block_head/end references to
611 * combine.c, flow.c, function.c, gcse.c, global.c: Likewise.
612 * graph.c, haifa-sched.c, local-alloc.c, regclass.c: Likewise.
613 * regmove.c, reload1.c, reorg.c, sched.c: Likewise.
615 Sat Jan 9 23:54:09 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
617 * gcc.c (xstrerror): Renamed from my_strerror. All callers
618 changed. Remove prototype since we get that from libiberty.h.
620 * protoize.c (xstrerror): Likewise.
622 Sat Jan 9 23:22:04 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
624 * gcc.c (read_specs): Ensure format specifiers match their arguments.
626 Sat Jan 9 20:04:24 1999 Richard Henderson <rth@cygnus.com>
628 * tree.c (copy_node): Oops. That would be copy not zero
631 Sun Jan 10 15:35:41 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
633 * config/c4x/c4x.c: Include system.h.
634 (c4x_caller_save_map): Disable caller save for RC.
635 (c4x_optimization_options): Disable scheduling before reload.
636 (valid_parallel_load_store) : Define return type as int.
637 Remove unused variable regs.
638 * config/c4x/c4x.h (REGISTER_MOVE_COST): Make independent of register
640 * config/c4x/c4x.md (rotlqi3, rotrqi3): Fix up emitted RTL to
642 (*db, decrement_and_branch_until_zero): Fix up constraints
643 to keep reload happy.
645 Sat Jan 9 18:35:29 1999 Richard Henderson <rth@cygnus.com>
647 * tree.c (make_node): Call bzero instead of inline clear.
648 (copy_node, make_tree_vec, build1): Likewise.
649 (get_identifier): Call strlen instead of inline count.
650 (maybe_get_identifier): Likewise.
652 Sun Jan 10 14:04:51 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
654 * config/c4x/c4x.md: (in_annul_slot_3): Allow unarycc and binarycc
655 operations in 3rd annulled delay slot.
656 (*lshrqi3_const_set): Disallow c constraint for operand0.
657 (modhi3+1, modhi3+2): Set attribute type to multi.
658 * config/c4x/c4x.c (c4x_S_constraint): Removed space in middle of
661 Sat Jan 9 11:44:55 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
663 * gansidecl.h: Allow attribute unused on labels only when we are
664 version 2.93 or higher. Not all versions of 2.92 have this feature.
666 * version.c: Bump minor number to 93.
668 Fri Jan 8 10:51:13 1999 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
670 * config/m68k/m68k.h: Declare output_function_epilogue.
671 * recog.h: Declare next_insn_tests_no_inequality.
673 Fri Jan 8 01:43:53 1999 Jeffrey A Law (law@cygnus.com)
675 * stmt.c (optimize_tail_recursion): New function, extracted from ...
676 (expand_return): Use optimize_tail_recursion.
677 * tree.h (optimize_tail_recursion): Declare.
679 * toplev.c (compile_file): Move call to output_func_start_profiler
680 to after the loop to emit deferred functions.
682 Thu Jan 7 19:52:53 1999 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
684 * system.h (abort): Supply more detailed information on how to
685 report an Internal Compiler Error.
687 Thu Jan 7 11:26:17 1999 Mark Mitchell <mark@markmitchell.com>
689 * calls.c (store_unaligned_arguments_into_pseudos): Use xmalloc to
690 allocate memory that will live beyond this function.
691 (expand_call): Free it here.
693 Thu Jan 7 03:08:17 1999 Richard Henderson <rth@cygnus.com>
695 * sparc.h (PREFERRED_RELOAD_CLASS): Select GENERAL_REGS for
696 integer data not destined for fp regs.
697 (LEGITIMIZE_RELOAD_ADDRESS): New.
699 Thu Jan 7 03:03:42 1999 Stan Cox <scox@cygnus.com>
700 Richard Henderson <rth@cygnus.com>
702 Support for Hypersparc and Sparclite86x:
703 * sparc.h (TARGET_CPU_hypersparc, TARGET_CPU_sparclite86x): New.
704 (CPP_CPU32_DEFAULT_SPEC): Fix up for the new targets.
705 (ASM_CPU32_DEFAULT_SPEC): Likewise.
706 (TARGET_CPU_DEFAULT): Likewise.
707 (enum processor_type): Likewise.
708 (CPP_ENDIAN_SPEC): Handle little endian data.
709 (LIBGCC2_WORDS_BIG_ENDIAN): Likewise.
710 (ADJUST_COST): Call sparc_adjust_cost.
711 * sparc.c (sparc_override_options): Fix up for the new targets.
712 (supersparc_adjust_cost): Make static.
713 (hypersparc_adjust_cost): New.
714 (ultrasparc_adjust_cost): Make static.
715 (sparc_adjust_cost): New.
716 * sparc.md (attr cpu): Add hypersparc and sparclite86x.
717 (function_unit): Add hypersparc scheduling rules.
719 * configure.in (with_cpu handler): Recognize hypersparc.
721 Thu Jan 7 23:54:05 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
723 * config/c4x/c4x.c: Added space after negation operator.
724 * config/c4x/c4x.h: Likewise.
725 * config/c4x/c4x.md: Likewise.
727 Thu Jan 7 23:39:27 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
729 * config/c4x/c4x.c (c4x_preferred_reload_class): Always return class.
731 Thu Jan 7 00:29:25 199 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
733 * combine.c (num_sign_bit_copies): In NEG, MULT, DIV and MOD cases,
734 when a test can't be performed due to limited width of
735 HOST_BITS_PER_WIDE_INT, use the more conservative approximation.
736 Fix UDIV case for cases where the first operand has the highest bit
739 Thu Jan 7 00:01:38 1999 Lutz Vieweg <lkv@mania.robin.de>
741 * pa.h (reg_class): Add FPUPPER_REGS.
742 (REG_CLASS_NAMES): Similarly.
743 (REG_CLASS_CONTENTS): Similarly
744 (REGNO_REG_CLASS): Handle FPUPPER_REGS.
745 (FP_REG_CLASS_P): Likewise.
746 (REG_CLASS_FROM_LETTER): Similarly.
747 (CLASS_MAX_NREGS): Similarly.
749 1999-01-06 Brendan Kehoe <brendan@cygnus.com>
751 * fixincludes: For HP/UX 10.20, also look in curses_colr/curses.h
752 for a typedef of bool. Make sure to have a copy of the file is
753 in place before we look to fix it. Fix typo in variable name to
756 Wed Jan 6 07:51:05 1999 Richard Henderson <rth@cygnus.com>
758 * expr.c (expand_builtin) [case BUILT_IN_CONSTANT_P]: Use
759 value_mode for the return mode.
761 Wed Jan 6 17:55:19 1999 Robert Lipe <robertlipe@usa.net>
763 * configure.in: New flag --with-dwarf2. If set, enables DWARF-2
764 debugging as default.
766 * config/tm-dwarf2.h: New file.
768 Wed Jan 6 16:08:54 1999 Jeffrey A Law (law@cygnus.com)
770 * h8300.h (ASM_OUTPUT_LABELREF): Define.
772 * pa.h (DONT_RECORD_EQUIVALENCE): Kill.
773 * local-alloc.c (update_equiv_regs): Corresponding changes.
774 * tm.texi (DONT_RECORD_EQUIVALENCE): Kill.
776 * calls.c (special_function_p): Push alloca test inside the large
777 conditional which excludes functions not at file scope or not
780 * calls.c (special_function_p): New function broken out of
782 (precompute_register_parameters): Likewise.
783 (store_one_arg): Likewise.
784 (store_unaligned_argumetns_into_pseudos): Likewise.
785 (save_fixed_argument_area): Likewise.
786 (restore_fixed_argument_area): Likewise.
787 (expand_call): Corresponding changes.
789 Wed Jan 6 10:43:29 1999 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
791 * config/m68k/m68k.c (const_uint32_operand): Remove CONSTANT_P_RTX
793 (const_sint32_operand): Likewise.
795 Wed Jan 6 09:44:51 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
797 * toplev.h: In addition to checking _JBLEN, also check if `setjmp'
798 is a macro when deciding if we can use `jmp_buf' in prototypes.
800 Thu Jan 7 00:12:24 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
802 * config/c4x/c4x.md (addqi3): If the destination operand is
803 a hard register other than an extended precision register,
804 emit addqi3_noclobber.
805 (*addqi3_noclobber_reload): New pattern added so that reload
806 will recognise a store of a pseudo, equivalent to the sum
807 of the frame pointer and a constant, as an add insn.
809 Wed Jan 6 03:18:53 1999 Mark Elbrecht <snowball3@usa.net.
811 * configure.in (pc-msdosdjgpp): Set x_make to x-go32.
812 * configure: Rebuilt.
813 * i386/xm-go32.h: Define LIBSTDCXX.
815 * i386/go32.h (MD_EXEC_PREFIX): Define.
816 (FILE_NAME_ABSOLUTE_P): Define.
817 (LINK_COMMAND_SPEC): Define.
819 Wed Jan 6 02:23:36 1999 "Charles M. Hannum" <root@ihack.net>
821 * expr.c (store_expr): If the lhs is a memory location pointed
822 to be a postincremented (or postdecremented) pointer, always
823 force the rhs to be evaluated into a pseudo.
825 Wed Jan 6 00:54:21 1999 Geoff Keating <geoffk@ozemail.com.au>
827 * real.c (mtherr): Print more reasonable warning messages.
829 Tue Jan 5 21:57:42 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
831 * Makefile.in (gcc.o, prefix.o, cccp.o, cpplib.o): Depend on prefix.h.
833 * cccp.c: Include prefix.h, don't prototype prefix.c functions.
834 (new_include_prefix): Constify char* parameters.
836 * cppfiles.c (read_name_map): Likewise.
837 (append_include_chain): Likewise. Also, use a writable char* copy
838 of parameter `dir' which we then modify, rather than using the
839 parameter itself to store the new writable string.
840 (remap_filename): Constify some variables. Also, use a writable
841 char* to store an allocated string which we will be modifying.
843 * cpplib.c: Include prefix.h, don't prototype prefix.c functions.
844 (cpp_start_read): Constify variable `str'.
846 * cpplib.h (append_include_chain): Constify a char* parameter.
848 * gcc.c Include prefix.h, don't prototype prefix.c functions.
849 (add_prefix, save_string): Constify char* parameters.
850 (fatal, error): Add ATTRIBUTE_PRINTF_1 to prototypes.
852 * prefix.c: Include prefix.h.
853 (get_key_value, translate_name, save_string, update_path,
854 set_std_prefix): Constify various char* parameters and variables.
855 (save_string): Use xmalloc, not malloc.
856 (translate_name): Use a writable temporary variable to create and
857 modify a string before setting it to a const char*.
859 * prefix.h: New file to prototype functions exported from prefix.c.
861 Mon Jan 4 15:37:30 1999 Zack Weinberg <zack@rabi.phys.columbia.edu>
863 * cpplib.c (skip_if_group): Split out the logic that handles
864 directive recognition to its own function. Don't use
865 parse markers; use a bare pointer into the buffer. Use
866 copy/skip_rest_of_line instead of doing it by hand. Remove
867 `return on any directive' mode which was never used, and take
869 (consider_directive_while_skipping): New function, subroutine
870 of skip_if_group. Logic streamlined a bit.
871 (conditional_skip, do_elif, do_else): Call skip_if_group with
874 Mon Jan 4 15:27:30 1999 Zack Weinberg <zack@rabi.phys.columbia.edu>
876 * cpplib.c (do_undef): EOF immediately after '#undef FOO' is not an
879 Mon Jan 4 11:55:51 1999 Jason Merrill <jason@yorick.cygnus.com>
881 * extend.texi (Bound member functions): Document.
883 Mon Jan 4 11:01:48 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
885 * mips-tdump.c (st_to_string, sc_to_string, glevel_to_string,
886 lang_to_string, type_to_string): Make return type const char*.
887 (print_symbol): Apply `const' keyword to a char*.
888 (print_file_desc): Cast structure member `crfd' to ulong when
889 comparing against one.
891 * mips-tfile.c (pfatal_with_name): Apply `const' keyword to char*.
892 (fatal, error): Add ATTRIBUTE_PRINTF_1 to prototypes.
893 (progname, input_name): Apply `const' keyword to a char*.
894 Don't redundantly include sys/stat.h.
895 (alloc_info): Apply `const' keyword to a char*.
896 (st_to_string, sc_to_string): Likewise.
897 (hash_string): Cast variable `hash_string' to a symint_t when
898 comparing against one.
899 (add_string): Cast PAGE_USIZE to Ptrdiff_t when comparing against one.
900 Likewise cast it to long when comparing against one.
901 (add_local_symbol): Apply `const' keyword to a char*.
902 (add_ext_symbol): Likewise.
903 (add_unknown_tag): Likewise.
904 (add_procedure): Cast a printf-style field width to an int.
905 (add_file): Cast PAGE_USIZE to long when comparing against one
906 (parse_begin): Cast a printf-style field width to an int.
907 (parse_bend): Likewise.
908 (parse_def): Likewise.
909 (parse_end): Likewise.
910 (mark_stabs): Mark parameter `start' with ATTRIBUTE_UNUSED.
911 (parse_stabs_common): Fix format specifier.
912 (parse_input): Change type of variable `i' to Size_t.
913 (write_object): Fix arguments to match format specifiers.
914 Cast variable `num_write' to long when comparing against one.
915 (read_seek): Cast variable `sys_read' to symint_t when comparing
916 against one. Fix arguments to match format specifiers. Cast
917 variable `size' to long when comparing against one.
918 (copy_object): Cast result of `sizeof' to int when comparing
919 against one. Fix arguments to match format specifiers. Cast
920 variable `ifd' to long when comparing against a signed value.
923 Mon Jan 4 10:30:33 1999 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
925 * c-common.c (decl_attributes): Allow applying attribute `unused'
928 * c-parse.in (label): Parse attributes after a label, and call
929 `decl_attributes' to handle them.
931 * gansidecl.h (ATTRIBUTE_UNUSED_LABEL): Define.
933 * genrecog.c (OUTPUT_LABEL, write_tree_1, write_tree): When
934 generating labels, mark them with ATTRIBUTE_UNUSED_LABEL.
936 * invoke.texi: Note that labels can be marked `unused'.
938 Sun Jan 3 23:32:18 PST 1999 Jeff Law (law@cygnus.com)
940 * version.c: Bump for snapshot.
942 Sun Jan 3 23:00:42 1999 Jeffrey A Law (law@cygnus.com)
944 * optabs.c (emit_cmp_and_jump_insns): Use CONSTANT_P canonicalizing
945 RTL for a compare/jump sequence.
947 Sun Jan 3 22:58:15 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
949 * optabs.c (emit_cmp_insn): Abort if asked to emit non-canonical RTL
950 for a target with HAVE_cc0 defined.
951 (emit_cmp_and_jump_insns): New function.
952 * expr.h (emit_cmp_and_jump_insns): Prototype it.
953 * loop.c (check_dbra_loop): Use it to replace calls
954 to emit_cmp_insn and emit_jump_insn and to canonicalise
955 the comparison if necessary.
956 * unroll.c (unroll_loop): Likewise.
958 Sun Jan 3 21:01:04 1999 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
960 * fixincludes (sys/utsname.h): Provide forward declaration of
961 struct utsname on Ultrix V4.[35].
963 * mips.md (div_trap): Use local labels instead of dot-relative
966 Sun Jan 3 20:40:34 1999 Jeffrey A Law (law@cygnus.com)
968 * pa.md (branch, negated branch): Handle (const_int 0) as first
970 * pa.c (output_cbranch): Likewise.
972 Sun Jan 3 03:20:38 1999 David Edelsohn <edelsohn@mhpcc.edu>
974 * rs6000.c (rs6000_stack_info): Undo spurious part of last
977 1999-01-01 Manfred Hollstein <manfred@s-direktnet.de>
979 * extend.texi (__builtin_constant_p): Add missing @smallexample.
981 Fri Jan 1 11:48:20 1999 Jeffrey A Law (law@cygnus.com)
983 * i386.md (doubleword shifts): Fix dumb mistakes in previous change.
985 Wed Dec 30 23:38:55 1998 Jeffrey A Law (law@cygnus.com)
987 * m68k.md (adddi_dilshr32): Allow all operands to be registers too.
988 (adddi_dishl32): Similarly.
990 * cse.c (invalidate_skipped_block): Call invalidate_from_clobbers
991 for each insn in the skipped block.
993 * reload1.c (reload_as_needed): Verify that the insn satisfies its
994 constraints after replacing a register address with an autoincrement
995 address for reload inheritance purposes.
997 * i386.md (doubleword shifts): Avoid namespace pollution.
999 Wed Dec 30 23:00:28 1998 David O'Brien <obrien@NUXI.com>
1001 * configure.in (FreeBSD ELF): Needs special crt files.
1003 Wed Dec 30 22:50:13 1998 Geoffrey Noer <noer@cygnus.com>
1005 * i386/xm-cygwin.h: change DIR_SEPARATOR to forward slash.
1007 1998-12-30 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1009 * loop.c (check_dbra_loop): While reversing the loop, if the
1010 comparison value has a VOID mode use the mode of the other operand
1011 to compute the mask.
1013 Wed Dec 30 22:24:00 1998 Michael Meissner <meissner@cygnus.com>
1015 * rs6000.md ({save,restore}_stack_function): Take 2 operands to
1016 avoid warnings in compiling explow.c.
1018 (patch from Ken Raeburn, raeburn@cygnus.com)
1019 * rs6000.c (rs6000_stack_info): Force 8-byte alignment of
1020 fpmem_offset. Compute total size after that, and then
1021 rs6000_fpmem_offset using both values.
1023 Mon Dec 28 19:26:32 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
1025 * gcc.texi (Non-bugs): ``Empty'' loops will be optimized away in
1026 the future; indeed that already happens in some cases.
1028 Tue Dec 29 11:58:53 1998 Richard Henderson <rth@cygnus.com>
1030 * sparc.c (input_operand): Recognize (const (constant_p_rtx)).
1031 (arith_operand): Remove constant_p_rtx handling.
1032 (const64_operand, const64_high_operand): Likewise.
1033 (arith11_operand, arith10_operand, arith_double_operand): Likewise.
1034 (arith11_double_operand, arith10_double_operand, small_int): Likewise.
1035 (small_int_or_double, uns_small_int, zero_operand): Likewise.
1036 * sparc.h (PREDICATE_CODES): Likewise.
1038 * rtl.h (CONSTANT_P): Remove CONSTANT_P_RTX.
1040 Tue Dec 29 11:32:54 1998 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>:
1042 * rtl.def (CONSTANT_P_RTX): Clarify commentary.
1043 * expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
1044 consider constant CONSTRUCTOR constant and to defer some cases
1046 * cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
1047 * regclass.c (reg_scan_mark_refs, case CONST): Likewise.
1049 Tue Dec 29 11:30:10 1998 Richard Henderson <rth@cygnus.com>
1051 * expr.c (init_expr_once): Kill can_handle_constant_p recognition.
1052 * cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.
1054 * alpha.c (reg_or_6bit_operand): Remove CONSTANT_P_RTX handling.
1055 (reg_or_8bit_operand, cint8_operand, add_operand): Likewise.
1056 (sext_add_operand, and_operand, or_operand): Likewise.
1057 (reg_or_cint_operand, some_operand, input_operand): Likewise.
1058 * alpha.h (PREDICATE_CODES): Likewise.
1060 Sat Dec 26 23:26:26 PST 1998 Jeff Law (law@cygnus.com)
1062 * version.c: Bump for snapshot.
1064 Sat Dec 26 09:17:04 1998 Jeffrey A Law (law@cygnus.com)
1066 * gengenrtl.c (gencode): Always use bzero to clear memory instead
1067 of dangerous casts and stores.
1069 * Makefile.in (compare, gnucompare): Add missing else true clauses.
1071 Fri Dec 25 23:00:56 1998 Jeffrey A Law (law@cygnus.com)
1073 * alpha.md (builtin_longjmp): Add missing "DONE".
1075 Thu Dec 24 10:39:57 1998 Stan Cox <scox@cygnus.com>
1077 * gcc.c (execute): Enable -pipe with win32.
1079 Wed Dec 23 10:27:44 1998 Nick Clifton <nickc@cygnus.com>
1081 * config/arm/t-arm-elf: Add multiplib option for leading
1084 * config/arm/thumb.h (ASM_OUTPUT_LABELREF): Use variable
1085 'user_label_prefix' rather than macro USER_LABEL_PREFIX.
1087 (thumb_shiftable_const): Use macro 'BASE_REG_CLASS' rather
1088 than variable 'reload_address_base_reg_class'. [Note this
1089 change is unrelated to the others in this patch].
1091 * config/arm/unknown-elf.h (USER_LABEL_PREFIX): Default to no
1094 Wed Dec 23 09:51:32 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1096 * alias.c (record_alias_subset): Remove ignored `&'.
1097 (init_alias_once): Likewise.
1099 * c-lex.c (UNGETC): Cast first argument of comma expression to void.
1101 * config/mips/mips.c (mips_asm_file_end): Cast the result of
1102 fwrite to `int' when comparing against one.
1104 * config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
1105 (INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.
1107 * cse.c (rehash_using_reg): Change type of variable `i' to
1110 * dwarf2out.c (initial_return_save): Cast -1 to unsigned before
1111 assigning it to one.
1113 * except.c (duplicate_eh_handlers): Remove unused variable `tmp'.
1115 * final.c (final_scan_insn): Likewise for variable `i'.
1116 (output_asm_insn): Cast a char to unsigned char when used as an
1119 * gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
1120 assigning it to one.
1122 * loop.c (strength_reduce): Remove unused variables `count' and `temp'.
1124 * recog.c (preprocess_constraints): Cast a char to unsigned char
1125 when used as an array index.
1127 * regmove.c (find_matches): Likewise.
1129 * reload1.c (calculate_needs): Add default case in switch.
1130 (eliminate_regs_in_insn): Initialize variable `offset'.
1131 (set_offsets_for_label): Change type of variable `i' to unsigned.
1132 (reload_as_needed): Wrap variable `i' in macro check on
1133 AUTO_INC_DEC || INSN_CLOBBERS_REGNO_P.
1135 * scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
1136 with ATTRIBUTE_UNUSED. Cast variable `start_written' to size_t
1137 when comparing against one.
1139 * stor-layout.c (layout_decl): Cast maximum_field_alignment to
1140 unsigned when comparing against one. Likewise for
1141 GET_MODE_ALIGNMENT().
1142 (layout_record): Cast record_align to int when comparing against a
1144 (layout_type): Cast TYPE_ALIGN() to int when comparing against a
1147 * tree.c (get_identifier): Cast variable `len' to unsigned when
1148 comparing against one.
1149 (maybe_get_identifier): Likewise
1151 Wed Dec 23 00:10:01 1998 Jeffrey A Law (law@cygnus.com)
1153 * toplev.c (rest_of_compilation): Do not set reload_completed.
1154 * reload1.c (reload): Set reload_completed before calling
1155 cleanup_subreg_operands.
1157 Tue Dec 22 23:58:31 1998 Richard Henderson <rth@cygnus.com>
1159 * reload1.c (emit_reload_insns): Check `set' not null before use.
1161 Tue Dec 22 15:15:45 1998 Nick Clifton <nickc@cygnus.com>
1163 * rtlanal.c (multiple_sets): Change type of 'found' from 'rtx' to
1166 Tue Dec 22 13:55:44 1998 Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>
1168 * halfpic.c (half_pic_encode): Delete redundant code.
1170 Tue Dec 22 13:02:22 1998 Michael Meissner <meissner@cygnus.com>
1172 * toplev.c (main): Delete handling of -dM as a preprocessor
1175 Mon Dec 21 17:39:38 1998 Michael Meissner <meissner@cygnus.com>
1177 * toplev.c (main): Don't emit any warnings when using -dD, -dM, or
1178 -dI, which are handled by the preprocessor.
1180 Sun Dec 20 16:13:44 1998 John F. Carr <jfc@mit.edu>
1182 * configure.in: Handle Digital UNIX 5.x the same as 4.x.
1183 * i386/sol2.h: Define LOCAL_LABEL_PREFIX as ".".
1185 Sun Dec 20 07:39:52 PST 1998 Jeff Law (law@cygnus.com)
1187 * version.c: Bump for snapshot.
1189 Sat Dec 19 22:24:22 PST 1998 Jeff Law (law@cygnus.com)
1191 * version.c: Bump for snapshot.
1193 Sat Dec 19 21:41:32 PST 1998 Jeff Law (law@cygnus.com)
1195 * version.c: Bump for snapshot.
1197 Sat Dec 19 09:52:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1199 * genattr.c (fatal): Qualify a char* with the `const' keyword.
1201 * genattrtab.c (fatal, attr_printf, attr_string, write_attr_set,
1202 write_unit_name, write_eligible_delay, expand_units,
1203 make_length_attrs, write_attr_case, find_attr,
1204 make_internal_attr): Likewise.
1205 * gencheck.c (tree_codes): Likewise.
1206 * gencodes.c (fatal): Likewise.
1207 * genconfig.c (fatal): Likewise.
1208 * genemit.c (fatal): Likewise.
1209 * genextract.c (fatal, walk_rtx, copystr): Likewise.
1210 * genflags.c (fatal): Likewise.
1211 * genopinit.c (fatal, optabs, gen_insn): Likewise.
1212 * genoutput.c (fatal, error, predicates): Likewise.
1213 * genpeep.c (fatal): Likewise.
1214 * genrecog.c (fatal, decision, pred_table, add_to_sequence,
1215 write_tree_1, write_tree, change_state, copystr, indents): Likewise.
1217 Thu Dec 17 18:21:49 1998 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
1219 * configure.in (with-fast-fixincludes): Fix whitespace.
1220 * configure: Rebuilt.
1222 * fixincludes (c_asm.h): Wrap Digital UNIX V4.0B DEC C specific
1223 asm() etc. function declarations in __DECC.
1225 Thu Dec 17 13:57:23 1998 Nick Clifton <nickc@cygnus.com>
1227 * expr.c (emit_move_insn_1): Only emit a clobber if the target
1228 is a pseudo register.
1230 Thu Dec 17 13:50:29 1998 Nick Clifton <nickc@cygnus.com>
1232 * gcse.c: Include expr.h in order to get the prototype for
1233 get_condition() which is used in delete_null_pointer_checks().
1235 Thu Dec 17 15:58:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1237 * hwint.h: New file to consolidate HOST_WIDE_INT (etc) macros.
1239 Thu Dec 17 12:31:12 1998 Jim Wilson <wilson@cygnus.com>
1241 * Makefile.in (INTERNAL_CFLAGS): Add SCHED_CFLAGS.
1242 (ALL_CFLAGS): Delete SCHED_CFLAGS.
1244 1998-12-17 Vladimir N. Makarov <vmakarov@cygnus.com>
1246 * config/i60/i960.md (extendqihi2): Fix typo (usage ',' instead of
1249 1998-12-17 Michael Tiemann <tiemann@axon.cygnus.com>
1251 * i960.md (extend*, zero_extend*): Don't generate rtl that looks
1252 like (subreg:SI (reg:SI N) 0), because it's wrong, and it hides
1253 optimizations from the combiner.
1255 Thu Dec 17 08:27:03 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1257 * loop.c (combine_givs_used_by_other): Don't depend on n_times_set.
1259 Wed Dec 16 17:30:35 1998 Nick Clifton <nickc@cygnus.com>
1261 * toplev.c (main): Disable optimize_size if a specific
1262 optimization level is requested. Always set optimization
1263 level to 2 if -Os is specified.
1265 Wed Dec 16 16:33:04 1998 Dave Brolley <brolley@cygnus.com>
1267 * objc/lang-specs.h: Pass -MD, -MMD and -MG to cc1obj if configured with
1269 * cpplib.c (cpp_start_read): If in_fname is not initialized, try to
1270 initialize it using fname.
1272 1998-12-16 Zack Weinberg <zack@rabi.phys.columbia.edu>
1274 * cpplib.c (do_include): Treat #include_next in the
1275 primary source file as #include plus warning. Treat
1276 #include_next in a file included by absolute path as an
1277 error. fp == CPP_NULL_BUFFER is a fatal inconsistency.
1279 Wed Dec 16 12:28:54 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1281 * cccp.c: Don't define MIN/MAX anymore.
1282 * cpplib.c: Likewise.
1283 * machmode.h: Likewise.
1284 * system.h: Provide definitions for MIN/MAX.
1286 Tue Dec 15 23:47:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1288 * fix-header.c: Don't define xstrdup here.
1290 Wed Dec 16 05:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1292 * loop.c (consec_sets_giv): New argument last_consec_insn.
1293 (strength_reduce): Provide / use it.
1295 Wed Dec 16 17:24:07 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1297 * loop.h (loop_info): New field 'vtop'.
1298 * loop.c (check_dbra_loop): Use loop_info->vtop rather than
1299 scanning loop for vtop.
1300 * unroll.c (subtract_reg_term, find_common_reg_term): New functions.
1301 (loop_iterations): Use them to determine if loop has a constant
1302 number of iterations. Set loop_info->vtop. Don't subtract
1303 common reg term from initial_value and final_value if have a
1306 Tue Dec 15 13:49:55 1998 Jeffrey A Law (law@cygnus.com)
1308 * mn10200.md (addsi3 expander): Use "nonmemory_operand" for operand 2.
1310 * mn10300.md (bset, bclr): Operand 0 is a read/write operand.
1312 * mn10200.md (abssf2, negsf2): New expanders.
1314 * mn10300.md (absdf2, abssf2, negdf2, negsf2): New expanders.
1316 Tue Dec 15 11:55:30 1998 Nick Clifton <nickc@cygnus.com>
1318 * integrate.c (copy_rtx_and_substitute): If a SUBREG is
1319 replaced by a CONCAT whoes components do not have the same
1320 mode as the original SUBREG, use a new SUBREG to restore the
1323 * emit-rtl.c (subreg_realpart_p): Cope with subregs containing
1324 multiword complex values.
1326 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
1328 * cppalloc.c: Add xstrdup here.
1329 * cpplib.h: Remove savestring prototype.
1330 * cpplib.c: Remove savestring function. s/savestring/xstrdup/
1332 * cppfiles.c: s/savestring/xstrdup/ throughout.
1334 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
1336 * cpplib.c: Make all directive handlers read their own
1338 (struct directive): Remove last two arguments from FUNC
1339 member prototype. Remove `command_reads_line' member
1341 (directive_table): Remove initializations of
1342 command_reads_line flag. Pretty-print.
1343 (eval_if_expression, do_define, do_line, do_include,
1344 do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
1345 do_else, do_elif, do_sccs, do_assert, do_unassert,
1346 do_warning): Take only two args.
1348 (cpp_define): Call do_define with two args and the text to
1349 define stuffed into a buffer.
1350 (make_assertion): Call do_assert with two args.
1351 (handle_directive): Call do_line with two args. Call
1352 kt->func with two args. Remove command_reads_line
1354 (do_define, do_undef, do_error, do_warning, do_pragma,
1355 do_sccs): Read the rest of the line here.
1356 (do_ident): Gobble rest of line, as cccp does.
1357 (cpp_undef): New function.
1358 (cpp_start_read): Call cpp_undef instead of do_undef.
1360 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
1362 * cpphash.h (union hash_value): Remove `keydef' member, add a
1363 `struct hashnode *aschain' member for #assert.
1365 * cpplib.c (struct tokenlist_list, struct
1366 assertion_hashnode): Delete structure definitions.
1367 (assertion_install, assertion_lookup, delete_assertion,
1368 check_assertion, compare_token_lists, reverse_token_list,
1369 read_token_list, free_token_list): Delete functions.
1370 (parse_assertion): New function.
1371 (cpp_cleanup): Don't destroy the assertion_hashtable.
1373 (do_assert): Gut and rewrite. #assert foo (bar) places
1374 entries for `#foo' and `#foo(bar)' in the macro hash table,
1375 type T_ASSERT. The value union's `aschain' member is used
1376 to chain all answers for a given predicate together.
1377 (do_unassert): Also rewritten. Take an un-asserted
1378 answer off the chain from its predicate and call
1379 delete_macro on the hashnode, or walk a predicate chain
1380 calling delete_macro on all the entries.
1381 (cpp_read_check_assertion): Simply call parse_assertion to
1382 get the canonical assertion name, and look that up in the
1385 * cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
1388 * cpphash.c (install): Use bcopy instead of an explicit loop
1389 to copy the macro name.
1391 * cppexp.c (cpp_lex): Convert the result of
1392 cpp_read_check_assertion to a `struct operation' directly;
1393 don't go through parse_number.
1395 Tue Dec 15 18:27:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1397 * loop.h (struct induction): Delete times_used member.
1398 * loop.c (n_times_set): Rename to set_in_loop. Changed all users.
1399 (n_times_used): Rename to n_times_set. Changed all users.
1400 (scan_loop): Free reg_single_usage before strength reduction.
1401 (record_giv, combine_givs): Remove handling of times_used member.
1402 (combine_givs_used_once): Rename to:
1403 (combine_givs_used_by_other) . Changed all callers.
1405 Tue Dec 15 01:45:26 1998 Jason Merrill <jason@yorick.cygnus.com>
1407 * dwarf2out.c (gen_struct_or_union_type_die): Check AGGREGATE_TYPE_P
1408 instead of TREE_CODE_CLASS == 't'.
1409 (gen_type_die): Likewise.
1410 (scope_die_for): Ignore FUNCTION_TYPE "scopes".
1412 Mon Dec 14 16:23:27 1998 Jim Wilson <wilson@cygnus.com>
1414 * real.c (endian): Disable last change unless
1415 HOST_BITS_PER_WIDE_INT is greater than 32.
1417 Mon Dec 14 17:13:36 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
1419 * output.h (force_data_section): New prototype.
1420 * varasm.c (force_data_section): New function to force the
1421 data section, regardless of what in_section thinks.
1422 * dwarf2out.c (output_call_frame_info): Call force_data_section
1423 since varasm may not realize we've changes sections.
1425 Mon Dec 14 14:09:34 1998 Nick Clifton <nickc@cygnus.com>
1427 * reload1.c (reload): Delete REG_RETVAL and REG_LIBCALL notes
1428 after completeing reload.
1430 * rtl.texi: Document that REG_RETVAL and REG_LIBCALL are
1431 deleted after reload.
1433 Mon Dec 14 01:39:28 1998 Jeffrey A Law (law@cygnus.com)
1435 * rtl.h (multiple_sets): Fix prototype.
1436 * rtlanal.c (multiple_sets): Fix return type.
1438 Sun Dec 13 12:43:58 PST 1998 Jeff Law (law@cygnus.com)
1440 * version.c: Bump for snapshot.
1442 Sun Dec 13 01:05:22 PST 1998 Jeff Law (law@cygnus.com)
1444 * version.c: Bump for snapshot.
1446 1998-12-13 Manfred Hollstein <manfred@s-direktnet.de>
1448 * protoize.c (fputs): Wrap extern declaration in #ifndef fputs.
1450 Sun Dec 13 00:24:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1452 * rtl.h (recompute_reg_usage): Add second argument.
1453 * flow.c (recompute_reg_usage): Likewise.
1454 * toplev.c (rest_of_compilation): Supply second argument to
1455 recompute_reg_usage.
1457 * reload1.c (compute_use_by_pseudos): Allow reg_renumber[regno] < 0
1460 Sat Dec 12 23:39:10 1998 Jeffrey A Law (law@cygnus.com)
1462 * m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcpu32.
1463 (MULTILIB_MATCHES): -m68332 now uses mcpu32 libraries, not m68000.
1464 (MULTILIB_EXCEPTIONS): Don't build 68881 libraries for m68000,
1467 * i386/next.h (ASM_OUTPUT_ALIGN): Use 0x90 for fill character.
1469 * rtlanal.c (multiple_sets): New function.
1470 * rtl.h (multiple_sets): Declare it.
1471 * local-alloc.c (wipe_dead_reg): Use it.
1472 * global.c (global_conflicts): Likewise.
1474 Sat Dec 12 22:13:02 1998 Mark Mitchell <mark@markmitchell.com>
1476 * global.c (record_conflicts): Don't use an array of shorts to
1477 store an array of ints.
1478 (global_conflicts): Likewise.
1480 Sat Dec 12 16:49:24 1998 Richard Henderson <rth@cygnus.com>
1482 * alpha.c (alpha_expand_block_move): mode_for_size expects
1483 bits, not bytes. Infer extra alignment from addressof.
1485 1998-12-11 Michael Meissner <meissner@cygnus.com>
1487 * rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Put small data in the
1488 .sbss section, not .sdata.
1490 1998-12-11 Manfred Hollstein <manfred@s-direktnet.de>
1492 * cccp.c: Do not #include <sys/stat.h> here; this is already done
1494 * collect2.c: Likewise.
1495 * cpplib.h: Likewise.
1498 * getpwd.c: Likewise.
1499 * protoize.c: Likewise.
1500 * toplev.c: Likewise.
1502 * cpplib.h (HOST_WIDE_INT): Get definition from "machmode.h"
1503 and don't try to define it here.
1504 * Makefile.in (cppmain.o): Depend on machmode.h.
1505 (cpplib.o): Likewise.
1506 (cpperror.o): Likewise.
1507 (cppexp.o): Likewise.
1508 (cppfiles.o): Likewise.
1509 (cpphash.o): Likewise.
1510 (cppalloc.o): Likewise.
1511 (fix-header.o): Likewise.
1512 (scan-decls.o): Likewise.
1514 Fri Dec 11 11:02:49 1998 Stan Cox <scox@cygnus.com>
1516 * sh.c (print_operand): lookup interrupt_handler attribute instead
1517 of relying on static variable.
1518 * (calc_live_regs): Likewise.
1519 * (sh_pragma_insert_attributes): Create interrupt_handler
1520 attribute if a pragma was specified
1521 * (sh_valid_machine_decl_attribute): Don't set static flag.
1522 * sh.h (PRAGMA_INSERT_ATTRIBUTES): New.
1524 Fri Dec 11 12:56:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1526 * reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
1527 to determine if a register is live at a jump destination.
1528 Everything is dead at a BARRIER.
1530 Thu Dec 10 16:02:06 1998 Jim Wilson <wilson@cygnus.com>
1532 * cse.c (simplify_unary_operation): Sign-extend constants when
1533 they have the most significant bit set for the target.
1534 * real.c (endian): Sign-extend 32 bit output values on a 64 bit
1536 * m32r/m32r.c (m32r_expand_prologue): Store pretend_size in
1537 HOST_WIDE_INT temporary before negating it.
1538 * m32r/m32r.md (movsi_insn+1): Use ~0xffff instead of 0xffff0000.
1540 Thu Dec 10 15:05:59 1998 Dave Brolley <brolley@cygnus.com>
1542 * objc/objc-act.c (lang_init_options): Enclose cpplib related code in
1545 Thu Dec 10 13:39:46 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1547 * collect2.h: New header file for prototypes.
1549 * Makefile.in (collect2.o, tlink.o): Depend on collect2.h.
1551 * collect2.c: Include collect2.h.
1552 * tlink.c: Likewise.
1554 Wed Dec 9 23:55:11 1998 Jeffrey A Law (law@cygnus.com)
1556 * flow.c: Update some comments.
1558 Wed Dec 9 15:29:26 1998 Dave Brolley <brolley@cygnus.com>
1560 * objc/objc-act.c (cpp_initialized): Removed.
1561 (lang_init_options): Initialize cpplib.
1562 (lang_decode_option): Move initialization of cpplib to
1564 * c-lang.c: (parse_options,parse_in): Added.
1565 (lang_init_options): Initialized cpplib here.
1566 * c-decl.c (parse_options,cpp_initialized): Removed.
1567 (c_decode_option): Move initialization of cpplib to
1570 Wed Dec 9 19:36:57 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1572 * reload1.c (reload_combine, reload_combine_note_store):
1573 Make STORE_RUID always valid.
1574 (reload_combine): Check if BASE is clobbered too early.
1576 Wed Dec 9 09:53:58 1998 Nick Clifton <nickc@cygnus.com>
1578 * reload.c (find_reloads): Display the insn that cannot be
1581 Wed Dec 9 12:15:26 1998 Dave Brolley <brolley@cygnus.com>
1583 * cccp.c (create_definition): Fix end of bufer logic.
1585 Wed Dec 9 10:15:45 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1587 * except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
1588 pointer parameters changed to use the PARAMS() macro.
1590 Wed Dec 9 09:12:40 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
1592 * except.h (struct handler_info): Add handler_number field.
1593 * except.c (gen_exception_label): EH labels no longer need to be
1594 on the permanent obstack.
1595 (get_new_handler): Set the label number field.
1596 (output_exception_table_entry): Regenerate handler label reference
1597 from the label number field.
1598 (init_eh): Remove a blank line.
1599 * integrate.c (get_label_from_map): Labels no longer need to be
1600 on the permanent obstack.
1602 Tue Dec 8 22:04:33 1998 Jim Wilson <wilson@cygnus.com>
1604 * i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
1605 only when OUTER_CODE is SET.
1607 Tue Dec 8 22:47:15 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1609 * loop.c (strength_reduce): If scan_start points to the loop exit
1610 test, be wary of subversive use of gotos inside expression statements.
1611 Don't set maybe_multiple for a backward jump that does not
1612 include the label under consideration into its range.
1613 * unroll.c (biv_total_increment): Make use of maybe_multiple field.
1615 Tue Dec 8 22:33:18 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1617 * explow.c (plus_constant_wide): Don't immediately return with
1618 result of recursive call.
1620 Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
1622 * eh-common.h (struct eh_context): Add table_index for rethrows.
1624 * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
1625 (SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
1626 processed when inlined or unrolled (ie duplicated in some way).
1628 * rtl.c (reg_note_name): Add strings for new reg_note enums.
1630 * expr.h (rethrow_libfunc): New library decl.
1632 * optabs.c (rethrow_libfunc): Initialize.
1634 * except.h (struct eh_entry): Add new field 'rethrow_label'.
1635 (new_eh_region_entry): No longer exported from except.c.
1636 (duplicate_handlers): Renamed to duplicate_eh_handlers and
1637 different prototype.
1638 (rethrow_symbol_map, rethrow_used): New exported functions.
1639 (eh_region_from_symbol): New exported function.
1641 * except.c (create_rethrow_ref): New function to create a single
1642 SYMBOL_REF for a rethrow region.
1643 (push_eh_entry): Initialize a rethrow ref.
1644 (func_eh_entry): Add a rethrow_label field.
1645 (new_eh_region_entry): Make static, and initialize the rethrow entry.
1646 (duplicate_eh_handlers): Create a new region, and remap labels/symbols.
1647 (eh_region_from_symbol): Find an EH region based on its rethrow symbol.
1648 (rethrow_symbol_map): Given a label map, maps a rethrow symbol for
1649 a region into an appropriate new symbol.
1650 (rethrow_used): Indicate whether a rethrow symbol has been referenced.
1651 (expand_eh_region_end): Don't issue jump around code for new-exceptions.
1652 (end_catch_handler): Emit a barrier for new-exceptions since
1653 control can never drop through the end of a catch block.
1654 (expand_end_all_catch): new-exceptions never fall through a catch
1656 (expand_rethrow): use __rethrow routine for new exceptions.
1657 (output_exception_table_entry): Generate rethrow labels, if needed.
1658 (output_exception_table): Generate start and end rethrow labels.
1659 (init_eh): Create rethrow symbols for beginning and end of table.
1660 (scan_region): Don't eliminate EH regions which are the targets of
1663 * flow.c (make_edges): Add different edges for rethrow calls,
1664 identified by having the REG_EH_RETHROW reg label.
1665 (delete_unreachable_blocks): Don't delete regions markers which are
1666 the target of a rethrow.
1668 * integrate.c (save_for_inline_eh_labelmap): New callback routine to
1669 allow save_for_inline_copying to call duplicate_eh_handlers.
1670 (save_for_inline_copying): Call duplicate_eh_handlers instead of
1671 exposing internal details of exception regions.
1672 (copy_for_inline): Check if SYMBOL_REFs need adjustment.
1673 (expand_inline_function_eh_labelmap): New callback routine to
1674 allow expand_inline_function to call duplicate_eh_handlers.
1675 (expand_inline_function): Call duplicate_eh_handlers instead of
1676 exposing internal details of exception regions.
1677 (copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
1680 * libgcc2.c (find_exception_handler): Generalize to enable it to
1681 pick up processing where it left off last time for a rethrow.
1682 (__unwinding_cleanup): New function. debug hook which is called before
1683 unwinding when __throw finds there is nothing but cleanups left.
1684 (throw_helper): Common parts of __throw extracted out for reuse.
1685 (__throw): Common parts moved to throw_helper.
1686 (__rethrow): New function for performing rethrows.
1688 Tue Dec 8 13:11:04 1998 Jeffrey A Law (law@cygnus.com)
1690 * reload1.c (current_function_decl): Tweak declaration.
1692 Tue Dec 8 10:23:52 1998 Richard Henderson <rth@cygnus.com>
1694 * c-decl.c (flag_isoc9x): Default off.
1695 (c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
1696 * cccp.c (print_help, main): Likewise.
1697 * gcc.c (default_compilers): Update for -std=gnu*.
1699 Tue Dec 8 01:14:46 1998 Jeffrey A Law (law@cygnus.com)
1701 * Makefile.in (DEMANGLE_H): Change location to shared demangle.h.
1702 * demangle.h: Deleted.
1704 * reload1.c (current_function_decl): Declare.
1706 Tue Dec 8 11:58:51 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1708 * cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.
1710 Tue Dec 8 09:28:36 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1712 * dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.
1714 1998-12-08 Ulrich Drepper <drepper@cygnus.com>
1716 * configure.in: Test for availability of putc_unlocked, fputc_unlocked,
1718 * configure: Rebuilt.
1719 * system.h: If the *_unlocked functions are available use them
1720 instead of the locked counterparts by defining macros.
1721 * config.in: Regenerated.
1723 Tue Dec 8 00:34:05 1998 Mike Stump <mrs@wrs.com>
1725 * i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
1726 wrong and should only be used for dump related things, not
1727 debugging information, instead main_input_filename should be used.
1728 Also, reuse output_file_directive if possible.
1729 * i386/aix386ng.h (ASM_FILE_START): Likewise.
1730 * i386/isc.h (ASM_FILE_START): Likewise.
1731 * i386/win-nt.h (ASM_FILE_START): Likewise.
1732 * i386/sun386.h (ASM_FILE_START): Likewise.
1734 Mon Dec 7 23:56:28 1998 Robert Lipe <robertl@dgii.com>
1736 * configure.in (mips*-*-linux*): Handle big and little endian
1738 * configure: Rebuilt.
1740 Mon Dec 7 23:14:51 1998 Mike Stump <mrs@wrs.com>
1742 * emit-rtl.c: Fix typo.
1744 Mon Dec 7 23:07:38 1998 Nathan Sidwell <nathan@acm.org>
1746 * reload1.c (eliminate_regs): Don't do anything, if we're not
1749 Mon Dec 7 15:27:09 1998 DJ Delorie <dj@cygnus.com>
1751 * mips/mips.h (ENCODE_SECTION_INFO): Handle TARGET_EMBEDDED_DATA.
1753 * mips/mips.c (mips_select_section): Add comment.
1755 Mon Dec 7 17:55:06 1998 Mike Stump <mrs@wrs.com>
1757 * cccp.c (ignore_escape_flag): Add support for \ as `natural'
1758 characters in file names in #line to be consistent with #include
1759 handling. We support escape prcessing in the # 1 "..." version of
1760 the command. See also support in cp/lex.c.
1761 (handle_directive): Likewise.
1762 (do_line): Likewise.
1764 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
1766 * cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
1767 so it'll work on non-ASCII platforms. Always consider $ an
1768 identifier character. Take no arguments.
1769 (cpp_reader_init): Call initialize_char_syntax with no
1771 (cpp_start_read): Don't call initialize_char_syntax again.
1772 Clear is_idchar['$'] and is_idstart['$'] if not
1773 opts->dollars_in_ident.
1775 * cpplib.h (struct cpp_reader): Replace void *data element by
1776 cpp_options *opts. Rearrange elements to make gdb printout
1777 less annoying (put buffer stack at end).
1778 (CPP_OPTIONS): Get rid of now-unnecessary cast.
1780 * cppmain.c: s/data/opts/ when initializing cpp_reader
1782 * c-decl.c: Likewise.
1783 * objc/objc-act.c: Likewise.
1784 * fix-header.c: Likewise.
1786 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
1788 * cpplib.h (struct cpp_buffer): Replace dir and dlen members
1789 with a struct file_name_list pointer.
1790 (struct cpp_reader): Add pointer to chain of `actual
1791 directory' include searchpath entries.
1792 (struct file_name_list): Add *alloc pointer for the sake of
1793 the actual-directory chain.
1795 Move definition of HOST_WIDE_INT here.
1796 (cpp_parse_escape): Change prototype to match changes in
1799 * cppfiles.c (actual_directory): New function.
1800 (finclude): Use it to initialize the buffer's actual_dir
1802 (find_include_file): We don't need to fix up max_include_len
1805 * cpplib.c (do_include): Don't allocate a file_name_list on
1806 the fly for current directory "" includes, use the one that's
1807 been preallocated in pfile->buffer->actual_dir. Hoist out
1808 duplicate code from the search_start selection logic.
1809 (cpp_reader_init): Initialize pfile->actual_dirs.
1811 Remove definition of HOST_WIDE_INT. Change calls
1812 to cpp_parse_escape to match changes in cppexp.c (note
1813 hardcoded MASK, which is safe since this is the source
1816 * cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
1817 to handle wide character constants in #if directives. The
1818 function now returns a HOST_WIDE_INT, and takes a third
1819 argument which is a binary mask for all legal values (0x00ff
1820 for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.) Define
1821 MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK. Change callers of
1822 cpp_parse_escape to match. [Fixes c-torture/execute/widechar-1.c]
1824 Mon Dec 7 15:38:25 1998 Dave Brolley <brolley@cygnus.com>
1826 * gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.
1828 Mon Dec 7 15:38:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1830 * c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
1831 * cppalloc.c: Move function `xcalloc' from cpplib.c to here.
1832 * cpplib.c: Move function `xcalloc' from here to cppalloc.c.
1834 Mon Dec 7 11:30:49 1998 Nick Clifton <nickc@cygnus.com>
1836 * final.c (output_asm_name): Use tabs to seperate comments from
1839 Include instruction lengths (if defined) in output.
1841 Mon Dec 7 10:53:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1843 * loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
1844 in the loop_info structure.
1846 Mon Dec 7 11:04:40 1998 Catherine Moore <clm@cygnus.com>
1848 * configure.in: (arm*-*-ecos-elf): New target.
1849 * configure: Regenerated.
1850 * config/arm/elf.h (ASM_WEAKEN_LABEL): Define.
1851 * config/arm/ecos-elf.h: New file.
1852 * config/arm/unknown-elf.h (TARGET_VERSION): Check
1855 Mon Dec 7 16:15:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1857 * sh.c (output_far_jump): Emit braf only for TARGET_SH2.
1859 Sun Dec 6 04:19:45 PST 1998 Jeff Law (law@cygnus.com)
1861 * version.c: Bump for snapshot.
1863 Sun Dec 6 05:16:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1865 * loop.c (check_dbra_loop): New argument loop_info. Update fields
1868 Sun Dec 6 03:40:13 PST 1998 Jeff Law (law@cygnus.com)
1870 * version.c: Bump for snapshot.
1872 Sun Dec 6 07:49:29 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1874 * gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
1875 compressed reports are ok and preferred over URLs
1877 Sun Dec 6 07:45:33 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1879 * invoke.texi (Warning Options): Soften the tone of -pedantic
1881 Sun Dec 6 00:20:44 1998 H.J. Lu (hjl@gnu.org)
1883 * print-rtl.c (print_rtx): Add prototype.
1885 * unroll.c (iteration_info): Make it static.
1887 Sun Dec 6 01:19:46 1998 Richard Henderson <rth@cygnus.com>
1889 * alias.c (memrefs_conflict_p): A second ANDed address
1890 disables the aligned address optimization.
1892 Sat Dec 5 18:48:25 1998 Richard Henderson <rth@cygnus.com>
1894 * alpha.c (alpha_emit_set_const_1): Fix parenthesis error
1897 Sat Dec 5 15:14:52 1998 Jason Merrill <jason@yorick.cygnus.com>
1899 * i960.h (BOOL_TYPE_SIZE): Define.
1901 Sun Dec 6 00:28:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1903 * config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
1904 from old valid_parallel_operands_4.
1905 (valid_parallel_operands_4): Check that operands for 4 operand
1906 parallel insns are valid, excluding load/store insns.
1907 * config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
1908 * config/c4x/c4x.md (*movqf_parallel, *movqi_parallel): Use
1909 valid_parallel_load_store instead of valid_parallel_operands_4.
1910 (*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber,
1911 *negqf2_movqf_clobber, *absqi2_movqi_clobber,
1912 *fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
1913 *notqi_movqi_clobber): Use valid_parallel_operands_4.
1914 (*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
1915 *ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
1916 *subqi3_movqi_clobber): Use valid_parallel_operands_5.
1918 Sat Dec 5 23:52:01 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1920 * config/c4x/c4x.c (iteration_info): Delete extern.
1922 Fri Dec 4 20:15:57 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1924 * tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.
1926 * final.c (cleanup_subreg_operands): Delete some unused code.
1928 * recog.h (MAX_RECOG_ALTERNATIVES): New macro.
1929 (struct insn_alternative): New structure definition.
1930 (recog_op_alt): Declare variable.
1931 (preprocess_constraints): Declare function.
1932 * recog.c (recog_op_alt): New variable.
1933 (extract_insn): Verify number of alternatives is in range.
1934 (preprocess_constraints): New function.
1935 * reg-stack.c: Include recog.h.
1936 (constrain_asm_operands): Delete.
1937 (get_asm_operand_lengths): Delete.
1938 (get_asm_operand_n_inputs): New function.
1939 (record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
1940 N_OUTPUTS args. All callers changed.
1941 Compute number of inputs and outputs here by calling
1942 get_asm_operand_n_inputs.
1943 Instead of constrain_asm_operands, call extract_insn,
1944 constrain_operands and preprocess_constaints. Use information
1945 computed by these functions throughout.
1946 (record_reg_life): Delete code that is unused due to changes in
1947 record_asm_reg_life.
1948 (subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
1949 N_INPUTS and N_OUTPUTS args. All callers changed.
1950 Similar changes as in record_asm_reg_life.
1951 (subst_stack_regs): Move n_operands declaration into the if statement
1953 Delete code that is unused due to changes in subst_asm_stack_regs.
1954 * stmt.c (expand_asm_operands): Verify number of alternatives is in
1956 * Makefile.in (reg-stack.o): Depend on recog.h.
1958 Fri Dec 4 02:23:24 1998 Jeffrey A Law (law@cygnus.com)
1960 * except.c (set_exception_version_code): Argument is an "int".
1962 Fri Dec 4 01:29:28 1998 Jeffrey A Law (law@cygnus.com)
1964 * configure.in (hppa2*-*-*): Handle like hppa1.1-*-* for now.
1965 * configure: Rebuilt.
1967 Fri Dec 4 01:29:28 1998 Robert Lipe <robertl@dgii.com>
1969 * configure.in (mipsel-*-linux*): New target.
1970 * mips/linux.h: New file, based on other Linux targets.
1972 Thu Dec 3 11:19:50 1998 Mike Stump <mrs@wrs.com>
1974 * gthr-vxworks.h (__ehdtor): Fix memory leak. The delete hook
1975 runs in the context of the deleter, not the deletee, so we must
1976 use taskVarGet to find the correct memory to free.
1977 (__gthread_key_create): Initialize the task
1978 variable subsystem so that the task variable is still active when
1979 the delete hook is run.
1981 1998-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
1983 * pdp11.h: Use optimize_size for space optimizations.
1984 * pdp11.c: Likewise.
1985 * pdp11.md: Likewise.
1987 * pdp11.h (TARGET_40_PLUS): Fix typo.
1989 Thu Dec 3 11:48:32 1998 Jeffrey A Law (law@cygnus.com)
1991 * local-alloc.c (block_alloc): Slightly retune heuristic to widen
1994 Thu Dec 3 22:30:18 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1996 * alias.c (addr_side_effect_eval): New function.
1997 (memrefs_conflict_p): Use it.
1998 * rtl.h (addr_side_effect_eval): Prototype it.
2000 1998-12-02 Joseph S. Myers <jsm28@cam.ac.uk>
2002 * pdp11.md (extendsfdf2): Fix mode mismatch in SET.
2004 Wed Dec 2 11:23:07 1998 Jim Wilson <wilson@cygnus.com>
2006 * reload.c (find_reloads): When force const to memory, put result
2007 in substed_operand not *recog_operand_loc.
2009 1998-12-02 Ulrich Drepper <drepper@cygnus.com>
2011 * c-lex.c: Fix indentation from last patch.
2012 Remove trailing whitespace.
2015 Wed Dec 2 10:11:12 1998 Jeffrey A Law (law@cygnus.com)
2017 * flow.c (delete_block): Call set_last_insn after we have reset
2018 NEXT_INSN (kept_tail).
2020 Wed Dec 2 00:47:31 1998 Jeffrey A Law (law@cygnus.com)
2022 * mips.md (trap_if): Use "$0" for the value zero.
2024 Tue Dec 1 20:49:49 1998 Ulrich Drepper <drepper@cygnus.com>
2025 Stephen L Moshier <moshier@world.std.com>
2026 Richard Henderson <rth@cygnus.com>
2028 * c-common.c (declare_function_name): Declare predefinied variable
2031 * c-decl.c (flag_isoc9x): Set to 1 by default.
2032 (c_decode_option): Handle -std= option. Remove -flang-isoc9x.
2033 (grokdeclarator): Always emit warning about implicit int for ISO C 9x.
2035 * c-parse.in: Allow constructors in ISO C 9x.
2036 Rewrite designator list handling.
2037 Allow [*] parameters.
2038 Don't warn about comma at end of enum definition for ISO C 9x.
2040 * cccp.c (c9x): New variable.
2041 (rest_extension): New variable.
2042 (print_help): Document new -std= option.
2043 (main): Recognize -std= option. Set c9x appropriately.
2044 (create_definition): Recognize ISO C 9x vararg macros.
2046 * gcc.c (default_compilers): Adjust specs for -std options.
2047 (option_map): Add --std.
2048 (display_help): Document -std.
2050 * toplev.c (documented_lang_options): Add -std and remove
2053 * c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
2054 or REAL_VALUE_HTOF based on base of the constants.
2055 * fold-const.c (real_hex_to_f): New function. Replacement function
2056 for hex FP conversion if REAL_ARITHMETIC is not defined.
2057 * real.c (asctoeg): Add handling of hex FP constants.
2058 * real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
2061 Tue Dec 1 16:45:49 1998 Stan Cox <scox@cygnus.com>
2063 * mips.md (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
2064 -mcheck-range-division/-mcheck-zero-division checking. Avoid as macro
2065 expansion. Use hi/lo as destination register.
2067 (divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
2068 umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
2069 Avoid as macro expansion. Use hi/lo as destination register.
2071 * mips.h (MASK_CHECK_RANGE_DIV): New.
2072 (MASK_NO_CHECK_ZERO_DIV): New.
2073 (ELIMINABLE_REGS): Added GP_REG_FIRST + 31.
2074 (CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): Allow for getting
2075 return address for leaf functions out of r31 to support
2076 builtin_return_address.
2078 Tue Dec 1 15:03:30 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2080 * jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
2081 NEXT_INSN(x) to check insn x.
2083 Tue Dec 1 15:20:44 1998 Jeffrey A Law (law@cygnus.com)
2085 * flow.c (delete_block): Call set_last_insn if we end up deleting the
2086 last insn in the rtl chain.
2088 * reload1.c (reload): Do not set reload_completed or split insns
2090 * toplev.c (rest_of_compilation): Set reload_completed after
2091 reload returns. Split insns after reload_cse has run.
2093 Tue Dec 1 11:55:04 1998 Richard Henderson <rth@cygnus.com>
2095 * final.c (final_scan_insn): Abort if block_depth falls below 0.
2097 Tue Dec 1 10:23:16 1998 Nick Clifton <nickc@cygnus.com>
2099 * config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.
2101 Tue Dec 1 10:22:18 1998 Nick Clifton <nickc@cygnus.com>
2103 * config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
2104 use of user-label_prefix.
2106 Tue Dec 1 17:58:26 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2108 * reload1.c (emit_reload_insns): Clear spill_reg_store
2109 when doing a new non-inherited reload from the same pseudo.
2111 * local-alloc.c (function_invariant_p): New function.
2112 (update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
2113 to decide if an equivalence should be recorded.
2114 * reload1.c (num_eliminable_invariants): New static variable.
2115 (reload): Set it. Use function_invariant_p instead of CONSTANT_P
2116 to decide if an equivalence should be recorded.
2118 (calculate_needs_all_insns): Skip insns that only set an equivalence.
2119 Take num_eliminable_invariants into account when deciding
2120 if register elimination should be done.
2121 (reload_as_needed): Take num_eliminable_invariants into account
2122 when deciding if register elimination should be done.
2123 (eliminate_regs): Handle non-constant reg_equiv_constant.
2124 * rtl.h (function_invariant_p): Declare.
2126 Mon Nov 30 02:00:08 PST 1998 Jeff Law (law@cygnus.com)
2128 * version.c: Bump for snapshot.
2130 Mon Nov 30 00:42:59 PST 1998 Jeff Law (law@cygnus.com)
2132 * version.c: Bump for snapshot.
2134 Sun Nov 29 22:59:40 1998 Jason Merrill <jason@yorick.cygnus.com>
2136 * except.c (add_new_handler): Complain about additional handlers
2137 after one that catches everything.
2139 Sat Nov 28 10:56:32 1998 Jeffrey A Law (law@cygnus.com)
2141 * configure.in (alpha*-*-netbsd): Fix typo.
2142 * configure: Rebuilt.
2144 Fri Nov 27 12:28:56 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2146 * system.h: Include libiberty.h.
2148 * c-aux-info.c: Remove prototypes for concat/concat3. Change
2149 function `concat' from fixed parameters to variable parameters,
2150 as is done in libiberty. All callers of concat/concat3
2151 changed to use the new `concat' with variable args.
2153 * cccp.c: Remove things made redundant by libiberty.h and/or
2154 conform to libiberty standards.
2156 * collect2.c: Likewise.
2157 * config/1750a/1750a.h: Likewise.
2158 * cppalloc.c: Likewise.
2159 * cppexp.c: Likewise.
2160 * cppfiles.c: Likewise.
2161 * cpphash.c: Likewise.
2162 * cpplib.c: Likewise.
2163 * dyn-string.c: Likewise.
2164 * fix-header.c: Likewise.
2167 * genattr.c: Likewise.
2168 * genattrtab.c: Likewise.
2169 * gencheck.c: Likewise.
2170 * gencodes.c: Likewise.
2171 * genconfig.c: Likewise.
2172 * genemit.c: Likewise.
2173 * genextract.c: Likewise.
2174 * genflags.c: Likewise.
2175 * gengenrtl.c: Likewise.
2176 * genopinit.c: Likewise.
2177 * genoutput.c: Likewise.
2178 * genpeep.c: Likewise.
2179 * genrecog.c: Likewise.
2180 * getpwd.c: Likewise.
2181 * halfpic.c: Likewise.
2183 * mips-tdump.c: Likewise. Wrap malloc/realloc/calloc prototypes
2184 in NEED_DECLARATION_* macros.
2186 * mips-tfile.c: Remove things made redundant by libiberty.h and/or
2187 conform to libiberty standards.
2188 (fatal): Fix const-ification of variable `format' in
2189 !ANSI_PROTOTYPES case.
2191 * prefix.c: Remove things made redundant by libiberty.h and/or
2192 conform to libiberty standards.
2194 * print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
2195 conflicting with function `spaces' from libiberty.
2197 * profile.c: Remove things made redundant by libiberty.h and/or
2198 conform to libiberty standards.
2199 * protoize.c: Likewise.
2202 * tlink.c: Likewise.
2203 * toplev.c: Likewise.
2204 * toplev.h: Likewise.
2207 Thu Nov 26 08:38:06 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2209 * cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.
2211 Thu Nov 26 23:45:37 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2213 * README.C4X: Updated URLs.
2214 * config/c4x/c4x.c (c4x_address_conflict): Fix typo.
2215 (valid_parallel_operands_5): Remove unused variable.
2217 Thu Nov 26 23:40:03 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2219 * config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.
2221 1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
2223 * Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
2224 which can be configured.
2225 (LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
2226 (Makefile): Pass actual LANGUAGES through the environment when
2228 (cstamp-h): Likewise.
2229 (config.status): Likewise.
2231 * configure.in (enable_languages): Add new configuration parameter
2232 "--enable-languages=lang1,lang2,...".
2233 (${srcdir}/*/config-lang.in): Change handling to configure only
2234 those directories, that the user might have enabled; default to
2235 "all" existing languages.
2236 * configure: Regenerate.
2238 Thu Nov 26 00:19:19 1998 Richard Henderson <rth@cygnus.com>
2240 * rtlanal.c (regs_set_between_p): New function.
2241 * rtl.h (regs_set_between_p): Prototype it.
2242 * jump.c (jump_optimize): Use it instead of modified_between_p
2243 in the Sep 2 change.
2245 Wed Nov 25 23:32:02 1998 Ian Dall <Ian.Dall@dsto.defence.gov.au>
2246 Matthias Pfaller <leo@dachau.marco.de>
2248 * invoke.texi (Option Summary, NS32K Options): add description
2249 of NS32K specific options.
2251 * ns32k.md (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
2252 fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
2253 fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
2254 negdf2, absdf2): Use l instead of f since the double class and
2255 float class are no longer the same.
2256 (cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
2257 divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
2258 ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
2259 use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
2261 (cmpsi, cmphi, cmpqi): use general_operand instead of
2262 non_immediate_operand. Removes erroneous assumption that can't
2264 (movsf, movsi, movhi, movqi,...): New register numbering scheme.
2265 (movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
2267 (movstrsi, movstrsi1, movstrsi2): completely new block move
2269 (...): Patterns to exploit multiply-add instructions.
2270 (udivmodsi4, udivmodsi_internal4, udivmodhi4,
2271 udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): new
2272 patterns to exploit extended divide insns.
2273 (udivsi3, udivhi3, udivqi3): remove since superceded by udivmodsi
2276 * ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
2277 float return values as well as simple scalar floats.
2278 (TARGET_32381, TARGET_MULT_ADD, TARGET_SWITCHES):
2279 support new flag to denote 32381 fpu.
2280 (OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
2281 (CONDITIONAL_REGISTER_USAGE): disable extra 32381 registers if not
2283 (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS,
2284 REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES, OUTPUT_REGISTER_NAMES,
2285 REG_ALLOC_ORDER, DBX_REGISTER_NUMBER, R0_REGNUM, F0_REGNUM,
2286 L1_REGNUM, STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
2287 LONG_FP_REGS_P, ARG_POINTER_REGNUM, reg_class, REG_CLASS_NAMES,
2288 REG_CLASS_CONTENTS, SUBSET_P,REGNO_REG_CLASS,
2289 REG_CLASS_FROM_LETTER, FUNCTION_PROLOGUE, FUNCTION_EPILOGUE,
2290 REGNO_OK_FOR_INDEX_P, FP_REG_P, REG_OK_FOR_INDEX_P,
2291 REG_OK_FOR_BASE_P, MEM_REG): new register scheme to include 32381
2292 fpu registers and special register classes for new 32381
2293 instructions dotf and polyf.
2294 (MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
2296 (INCOMING_RETURN_ADDR_RTX, RETURN_ADDR_RTX,
2297 INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
2299 (SMALL_REGISTER_CLASSES): Make dependant on -mmult-add option.
2300 (MOVE_RATIO): Set to zero because of smart movstrsi implimentation.
2301 (REGISTER_MOVE_COST): move code to register_move_cost function for
2302 ease of coding and debugging.
2303 (CLASS_LIKELY_SPILLED_P): Under new register scheme class
2304 LONG_FLOAT_REGO is likely spilled but not caught by default
2306 (CONSTANT_ADDRESS_P, CONSTANT_ADDRESS_NO_LABEL_P): use macro
2307 instead of hard coded numbers in range check.
2308 (ASM_OUTPUT_LABELREF_AS_INT): delete since unused.
2309 (...): Add prototypes for functions in ns32k.c but disable because
2310 of problems when ns32k.h is included in machine independant files.
2312 * ns32k.c: include "system.h", "tree.h", "expr.h", "flags.h".
2313 (ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
2314 hard_regno_mode_ok, secondary_reload_class,
2315 print_operand, print_operand_address): new register scheme to
2316 include 32381 fpu registers and special register classes for new
2317 32381 instructions dotf and polyf.
2318 (gen_indexed_expr): Make static to keep namespace clean.
2319 (check_reg): remove since never called.
2320 (move_tail, expand_block_move): helper functions for "movstrsi"
2322 (register_move_cost): Helper function for REGISTER_MOVE_COST macro.
2323 Increase cost of moves which go via memory.
2324 * netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
2325 (CPP_PREDEFINES): nolonger predefine "unix".
2327 * ns32k.md (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
2328 Remove erroneous %$. print_operand() can work out from the rtx is
2329 an immediate prefix is required.
2331 * ns32k.h (RETURN_POPS_ARGS, VALID_MACHINE_DECL_ATTRIBUTE,
2332 VALID_MACHINE_TYPE_ATTRIBUTE, COMP_TYPE_ATTRIBUTES,
2333 SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
2335 (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST): Correct handling of
2338 * ns32k.c (symbolic_reference_mentioned_p, print_operand):
2339 Correct handling of pic operands.
2340 (ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
2341 ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
2342 -mrtd calling convention.
2344 Wed Nov 25 23:42:20 1998 Tom Tromey <tromey@cygnus.com>
2346 * gcc.c (option_map): Recognize --output-class-directory.
2348 Thu Nov 26 18:26:21 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2350 * loop.h (precondition_loop_p): Added new mode argument.
2351 * unroll.c (precondition_loop_p): Likewise.
2352 (approx_final_value): Function deleted and subsumed
2353 into loop_iterations.
2354 (loop_find_equiv_value): New function.
2355 (loop_iterations): Use loop_find_equiv_value to find increments
2356 too large to be immediate constants. Also use it to find terms
2357 common to initial and final iteration values that can be removed.
2359 Thu Nov 26 18:05:04 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2361 * loop.h (struct loop_info): Define new structure.
2362 (precondition_loop_p): Added prototype.
2363 (unroll_loop): Added new argument loop_info to prototype.
2364 (final_biv_value, final_giv_value): Added new argument n_iterations
2366 * loop.c (strength_reduce): Declare new structure loop_iteration_info
2367 and new pointer loop_info.
2368 (loop_n_iterations): Replace global variable by element in
2369 loop_info structure.
2370 (check_final_value): New argument n_iterations.
2371 (insert_bct): New argument loop_info.
2372 (loop_unroll_factor): Replace global array by element in
2373 loop_info structure.
2374 (loop_optimize): Remove code to allocate and initialise
2375 loop_unroll_factor_array.
2376 * unroll.c (precondition_loop_p): No longer static since
2377 used by branch on count optimization.
2378 (precondition_loop_p, unroll_loop): New argument loop_info.
2379 (final_biv_value, final_giv_value, find_splittable_regs): New
2380 argument n_iterations.
2381 (loop_iteration_var, loop_initial_value, loop_increment,
2382 loop_final_value, loop_comparison_code, loop_unroll_factor):
2383 Replaced global variables by loop_info structure.
2384 (loop_unroll_factor): Replace global array by element in
2385 loop_info structure.
2387 Thu Nov 26 17:49:29 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2389 * loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
2392 * unroll.c (precondition_loop_p): Return loop_initial_value
2393 for initial_value instead of loop_iteration_var.
2395 Thu Nov 26 17:15:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2397 * config/c4x/c4x.md: Fix minor formatting problems. Update docs.
2398 (*b, *b_rev, *b_noov, *b_noov_rev, *db,
2399 decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
2400 to output the instruction sequences.
2402 (rptb_top): Provide alternatives to use any register or memory
2404 (rptb_end): Emit use of operands rather than assigning them
2405 explicitly to the RS and RE registers.
2407 Thu Nov 26 16:37:59 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2409 * config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
2410 c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
2411 c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
2412 c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after,
2413 c4x_merge_notes, c4x_parallel_process,
2414 c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
2415 c4x_combine_parallel): Delete.
2417 Thu Nov 26 15:16:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2419 * config/c4x/c4x.c: (c4x_override_options): For compatibility
2420 with old target options clear flag_branch_on_count_reg if
2421 -mno-rptb specified and set flag_argument_alias is -mno-aliases
2423 (c4x_output_cbranch): Handle a sequence of insns rather than a
2425 (c4x_rptb_insert): Do not emit a RPTB insn if the RC register
2426 has not been allocated as the loop counter.
2427 (c4x_address_conflict): Do not allow two volatile memory references.
2428 (valid_parallel_operands_4, valid_parallel_operands_5,
2429 valid_parallel_operands_6): Reject pattern if the register destination
2430 of the first set is used as part of an address in the second set.
2432 Thu Nov 26 14:56:32 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2434 * config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
2435 (TARGET_SMALL_REG_CLASS): Set to 0 so that SMALL_REGISTER_CLASSES
2436 is no longer enabled if PARALLEL_MPY_FLAG set.
2437 (HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
2438 (REG_CLASS_CONTENTS): Add braces around initializers.
2439 (HAVE_MULTIPLE_PACK): Define.
2440 (ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with
2441 REAL_VALUE_TO_DECIMAL.
2442 (ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with
2443 REAL_VALUE_TO_DECIMAL.
2444 (ar0_reg_operand): Add prototype.
2445 (ar0_mem_operand): Likewise.
2446 (ar1_reg_operand): Likewise.
2447 (ar1_mem_operand): Likewise.
2448 (ar2_reg_operand): Likewise.
2449 (ar2_mem_operand): Likewise.
2450 (ar3_reg_operand): Likewise.
2451 (ar3_mem_operand): Likewise.
2452 (ar4_reg_operand): Likewise.
2453 (ar4_mem_operand): Likewise.
2454 (ar5_reg_operand): Likewise.
2455 (ar5_mem_operand): Likewise.
2456 (ar6_reg_operand): Likewise.
2457 (ar6_mem_operand): Likewise.
2458 (ar7_reg_operand): Likewise.
2459 (ar7_mem_operand): Likewise.
2460 (ir0_reg_operand): Likewise.
2461 (ir0_mem_operand): Likewise.
2462 (ir1_reg_operand): Likewise.
2463 (ir1_mem_operand): Likewise.
2464 (group1_reg_operand): Likewise.
2465 (group1_mem_operand): Likewise.
2466 (ir1_reg_operand): Likewise.
2467 (arx_reg_operand): Likewise.
2468 (not_rc_reg): Likewise.
2469 (not_modify_reg): Likewise.
2470 (c4x_group1_reg_operand): Remove prototype.
2471 (c4x_group1_mem_operand): Likewise.
2472 (c4x_arx_reg_operand): Likewise.
2474 Wed Nov 25 19:02:55 1998 (Stephen L Moshier) <moshier@world.std.com>
2476 * emit-rtl.c (gen_lowpart_common): Remove earlier change.
2477 * real.c (make_nan): Make SIGN arg actually specify the sign bit.
2479 Thu Nov 26 14:12:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2481 * config/c4x/c4x.md (addqi3): Emit addqi3_noclobber pattern
2484 Wed Nov 25 22:05:28 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2486 * config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
2487 unless FMOVD_WORKS is defined.
2489 Wed Nov 25 20:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2491 * regclass.c (init_reg_sets): Move code that calculates tables
2492 dependent on reg_class_contents from here...
2493 (init_reg_sets_1): To here.
2495 Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2497 * cpplib.h: Delete struct import_file. Add ihash element to
2498 struct cpp_buffer. Delete dont_repeat_files and
2499 import_hash_table elements from cpp_reader; change
2500 all_include_files to a hash table. Delete all foobar_include
2501 / last_foobar_include elements from struct cpp_options; put
2502 back four such: quote_include, bracket_include,
2503 system_include, after_include. Redo struct file_name_list
2504 completely. Add new structure type include_hash. Add
2505 prototypes for merge_include_chains and include_hash. Change
2506 prototypes for finclude, find_include_file, and
2507 append_include_chain to match changes below.
2509 * cppfiles.c (simplify_pathname, include_hash,
2510 remap_filename, merge_include_chains): New functions.
2511 (add_import, lookup_import, open_include_file): Removed.
2512 (INO_T_EQ): Define this (copied from cccp.c).
2513 (hack_vms_include_specification): Remove all calls and #if 0
2514 out the definition. It was being called incorrectly and at
2515 the wrong times. Until a VMSie can look at this, it's better
2516 to not pretend to support it.
2517 (append_include_chain): Change calling convention; now takes
2518 only one directory at a time, and sets up the data structure
2520 (redundant_include_p): Rewritten - this is now used for all
2521 include redundancy, whether by #ifndef, #import, or #pragma
2522 once. Looks up things in the include hash table.
2523 (file_cleanup): Decrement pfile->system_include_depth here if
2525 (find_include_file): Calling convention changed; now passes
2526 around a struct include_hash instead of 3 separate parameters.
2527 Guts ripped out and replaced with new include_hash mechanism.
2528 (finclude): Calling convention changed as for
2529 find_include_file. Error exits pulled out-of-line. Reformat.
2530 (safe_read): Return a long, not an int.
2531 (deps_output): Don't recurse.
2533 * cpplib.c (is_system_include): Deleted.
2534 (path_include): Fix up call to append_include_chain.
2535 (do_include): Fix up calls to find_include_file and finclude.
2536 Clean up dependency output a bit. Shorten obnoxiously lengthy
2537 #import warning message. Don't decrement
2538 pfile->system_include_depth here.
2539 (do_pragma): Understand the include_hash structure. Reformat.
2540 (do_endif): Correct handling of control macros. Understand
2542 (cpp_start_read): Fix up calls to finclude. Call
2543 merge_include_chains.
2544 (cpp_handle_option): Fix up calls to append_include_chain.
2545 Understand the four partial include chains.
2546 (cpp_finish): Add debugging code (#if 0-ed out) for the
2548 (cpp_cleanup): Free the include_hash, not the import hash and
2549 the all_include and dont_repeat lists which no longer exist.
2551 Wed Nov 25 11:26:19 1998 Jeffrey A Law (law@cygnus.com)
2553 * toplev.c (no_new_pseudos): Define.
2554 (rest_of_compilation): Set no_new_pseudos as needed.
2555 * emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
2556 if no_new_pseudos is set.
2557 * rtl.h (no_new_pseudos): Declare it.
2558 * reload1.c (reload): Update comments.
2559 * md.texi: Corresponding changes.
2561 Wed Nov 25 11:26:17 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2563 * reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
2564 (choose_reload_regs): Rename it here as well. When computing it,
2565 also merge in used hardregs.
2567 1998-11-25 07:51 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2569 * gcc.c: Split out Objective-C specs to...
2570 * objc/lang-specs.h: here. (New file.) Make the specs cpplib
2573 * c-lex.c (init_parse): Always initialize the filename global.
2574 * objc/objc-act.c (lang_init): Always call check_newline at
2577 Wed Nov 25 00:48:29 1998 Graham <grahams@rcp.co.uk>
2579 * reload1.c (reload): Remove unused variable.
2580 (reload_reg_free_for_value_p): Add missing parameter definition.
2582 * jump.c (jump_optimize): Remove unused variable.
2584 Wed Nov 25 00:07:11 1998 Jeffrey A Law (law@cygnus.com)
2586 * Makefile.in (graph.o): Depend on $(RTL_H), not rtl.h.
2588 * cse.c (fold_rtx): Make autoincrement addressing mode tests be
2590 * expr.c (move_by_pieces): Similarly.
2591 (move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
2592 * flow.c (find_auto_inc): Similarly.
2593 (try_pre_increment): Similarly.
2594 * loop.c (strength_reduce): Similarly.
2595 * regclass.c (auto_inc_dec_reg_p): Similarly.
2596 * regmove.c (try_auto_increment): Similarly.
2597 (fixup_match_1): Similarly.
2598 * rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
2599 (HAVE_PRE_DECREMENT): Similarly.
2600 (HAVE_POST_INCREMENT, HAVE_POST_DECREMENT): Similarly.
2601 * Corresponding changes to all target header files.
2602 * tm.texi: Update docs for autoinc addressing modes.
2604 Tue Nov 24 20:24:59 1998 Jim Wilson <wilson@cygnus.com>
2606 * configure.in (m68020-*-elf*, m68k-*-elf*): New targets.
2607 * configure: Rebuild.
2608 * config/elfos.h: New file.
2609 * config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
2610 config/m68k/t-m68kelf: New file.
2612 Tue Nov 24 13:40:06 1998 Jeffrey A Law (law@cygnus.com)
2614 * Makefile.in (HOST_AR): Define.
2615 (HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Similarly.
2616 (libcpp.a): Use the host tools explicitly.
2617 (STAGESTUFF): Add libcpp.a.
2619 Tue Nov 24 09:33:49 1998 Nick Clifton <nickc@cygnus.com>
2621 * config/m32r/m32r.md (movstrsi_internal): Describe changes made
2622 to source and destination registers.
2624 Mon Nov 23 20:28:02 1998 Mike Stump <mrs@wrs.com>
2626 * libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
2627 The strategy we now use is to pre allocate the top_elt along
2628 with the EH context so that each thread has its own top_elt.
2629 This is necessary as the dynmanic cleanup chain is used on the
2630 top element of the stack and each thread MUST have its own.
2631 (eh_context_static): Likewise.
2632 (new_eh_context): Likewise.
2633 (__sjthrow): Likewise.
2635 Mon Nov 23 20:25:03 1998 Jason Merrill <jason@yorick.cygnus.com>
2637 * i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
2638 * i386.md (prologue_get_pc): Remove unused variable.
2640 Mon Nov 23 17:05:40 1998 Geoffrey Noer <noer@cygnus.com>
2642 * i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.
2644 Mon Nov 23 16:40:00 1998 Ulrich Drepper <drepper@cygnus.com>
2646 * Makefile.in (OBJS): Add graph.o
2647 (graph.o): New dependency list.
2648 * flags.h: Declare dump_for_graph and define graph_dump_types type.
2649 * print-rtl.c (dump_for_graph): Define new variable.
2650 (print_rtx): Rewrite to allow use in graph dumping functions.
2651 * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
2652 finish_graph_dump_file.
2653 Define graph_dump_format.
2654 (compile_file): If graph dumping is enabled also clear these files.
2655 Finish graph dump files.
2656 (rest_of_compilation): Also dump graph information if enabled.
2657 (main): Recognize -dv to enabled VCG based graph dumping.
2658 * graph.c: New file. Graph dumping functions.
2660 Mon Nov 23 16:39:04 1998 Richard Henderson <rth@cygnus.com>
2662 * configure.in: Look for <sys/stat.h>.
2663 * system.h: Include it before substitute S_ISREG definitions.
2665 Mon Nov 23 17:40:37 1998 Gavin Romig-Koch <gavin@cygnus.com>
2667 * config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
2668 * config/mips/iris6.h: Same.
2669 * config/mips/mips.md: Same.
2670 * config/mips/mips.c: Same; also add "-mabi=o64" option.
2671 * config/mips/mips.h: Same; also define ABI_O64.
2673 Mon Nov 23 17:02:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2675 * configure.in: Use AC_PREREQ(2.12.1).
2677 Mon Nov 23 10:16:38 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
2679 * cccp.c (S_ISREG, S_ISDIR): Delete defines.
2680 * cpplib.c, gcc.c: Likewise.
2681 * system.h (S_ISREG, S_ISDIR): Define if not already defined.
2683 Mon Nov 23 09:53:44 1998 Richard Henderson <rth@cygnus.com>
2685 * local-alloc.c (local_alloc): Use malloc not alloca for
2686 reg_qty, reg_offset, ref_next_in_qty.
2688 Mon Nov 23 16:46:46 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2690 * caller-save.c (insert_one_insn): Initialize the live_before and
2691 live_after register sets.
2695 * config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
2696 (___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
2697 * sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
2698 (fp_reg_names, assembler_dialect): New variables.
2699 (print_operand_address): Handle SUBREGs.
2700 (print_operand): Added 'o' case.
2701 Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
2702 Name of FP registers depends on mode.
2703 (expand_block_move): Emit different code for SH4 hardware.
2704 (prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
2705 (from_compare): Likewise.
2706 (add_constant): New argument last_value. Changed all callers.
2707 (find_barrier): Don't try HImode load for FPUL_REG.
2708 (machine_dependent_reorg): Likewise.
2709 (sfunc_uses_reg): A CLOBBER cannot be the address register use.
2710 (gen_far_branch): Emit a barrier after the new jump.
2711 (barrier_align): Don't trust instruction lengths before
2713 (machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
2714 Use auto-inc addressing for fp registers if doubles need to
2715 be loaded in two steps.
2716 Set sh_flag_remove_dead_before_cse.
2717 (push): Support for TARGET_FMOVD. Use gen_push_fpul for fpul.
2718 (pop): Support for TARGET_FMOVD. Use gen_pop_fpul for fpul.
2719 (calc_live_regs): Support for TARGET_FMOVD. Don't save FPSCR.
2720 Support for FIRST_XD_REG .. LAST_XD_REG.
2721 (sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
2722 (sh_expand_epilogue): Likewise.
2723 (sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
2724 (initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
2725 (arith_reg_operand): FPUL_REG is OK for SH4.
2726 (fp_arith_reg_operand, fp_extended_operand) New functions.
2727 (tertiary_reload_operand, fpscr_operand): Likewise.
2728 (commutative_float_operator, noncommutative_float_operator): Likewise.
2729 (binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
2730 (emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
2731 (expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
2732 (emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
2733 * sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
2734 (CONDITIONAL_REGISTER_USAGE): Likewise.
2735 (HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
2736 (TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
2737 (TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
2738 (target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
2739 (OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
2740 to -1 and sh_flag_remove_dead_before_cse to 1.
2741 (ASSEMBLER_DIALECT): Define to assembler_dialect.
2742 (assembler_dialect, fp_reg_names): Declare.
2743 (OVERRIDE_OPTIONS): Add code for TARGET_SH4.
2744 Hide names of registers that are not accessible.
2745 (CACHE_LOG): Take TARGET_CACHE32 into account.
2746 (LOOP_ALIGN): Take TARGET_HARWARD into account.
2747 (FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
2748 (FIRST_PSEUDO_REGISTER: Now 49.
2749 (FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
2750 (HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
2751 (HARD_REGNO_MODE_OK): Update.
2752 (enum reg_class): Add DF_REGS and FPSCR_REGS.
2753 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
2754 (SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
2755 (CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
2756 (NPARM_REGS): Eight floating point parameter registers on SH4.
2757 (BASE_RETURN_VALUE_REG): SH4 also passes double values
2758 in floating point registers.
2759 (GET_SH_ARG_CLASS) Likewise.
2760 Complex float types are also returned in float registers.
2761 (BASE_ARG_REG): Complex float types are also passes in float registers.
2762 (FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
2763 (LIBCALL_VALUE): Remove trailing semicolon.
2764 (ROUND_REG): Round when double precision value is passed in floating
2766 (FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
2767 passed on the stack.
2768 (FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
2769 (FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
2770 (TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
2771 (INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
2772 (MODE_DISP_OK_8): Not for SH4 DFmode.
2773 (GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
2774 Allow indexed addressing for PSImode after reload.
2775 (LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
2776 (LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
2777 Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
2778 (DOUBLE_TYPE_SIZE): 64 for SH4.
2779 (RTX_COSTS): Add PLUS case.
2780 Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
2781 (REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
2782 MAC_REGS, PR_REGS, DF_REGS.
2783 (REGISTER_NAMES): Use fp_reg_names.
2784 (enum processor_type): Add PROCESSOR_SH4.
2785 (sh_flag_remove_dead_before_cse): Declare.
2786 (rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
2787 (PREDICATE_CODES): Add binary_float_operator,
2788 commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
2789 fpscr_operand, noncommutative_float_operator.
2790 (ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
2791 (SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
2792 * sh.md (attribute cpu): Add value sh4.
2793 (attrbutes fmovd, issues): Define.
2794 (attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
2795 (function units memory, int, mpy, fp): Make dependent on issue rate.
2796 (function units issue, single_issue, load_si, load): Define.
2797 (function units load_store, fdiv, gp_fpul): Define.
2798 (attribute hit_stack): Provide proper default.
2799 (use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
2800 (udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
2801 (udivsi3, divsi3): Emit special patterns for SH4 hardware,
2802 (mulsi3_call): Now uses match_operand for function address.
2803 (mulsi3): Also emit code for SH1 case. Wrap result in REG_LIBCALL /
2805 (push, pop, push_e, pop_e): Now define_expands.
2806 (push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
2807 (movsi_ie): Added y/i alternative.
2808 (ic_invalidate_line_i, movdf_i4): New insns.
2809 (movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
2810 (reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
2811 (movdf): Add special code for SH4.
2812 (movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
2813 (call_valuei, calli, call_value): Likewise.
2814 (movsf): Emit no-op move.
2815 (mov_nop, movsi_y): New insns.
2816 (blt, sge): generalize to handle DFmode.
2817 (return predicate): Call emit_fpscr_use and remove_dead_before_cse.
2818 (block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
2819 (block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
2820 (fpu_switch0, fpu_switch1, movpsi): New expanders.
2821 (fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
2822 (toggle_sz): New insn.
2823 (addsf3, subsf3, mulsf3, divsf3): Now define_expands.
2824 (addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
2825 (macsf3): Make use of fpscr visible. Disable for SH4.
2826 (floatsisf2): Make use of fpscr visible.
2827 (floatsisf2_i4): New insn.
2828 (floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
2829 (ieee_ccmpeqsf_t): Likewise.
2830 (fix_truncsfsi2): Emit different code for SH4.
2831 (fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
2832 (cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
2833 (negsf2, sqrtsf2, abssf2): Now expanders.
2834 (adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
2835 (negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
2836 (muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
2837 (fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
2838 (fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
2839 (fix_truncdfsi2_i4_2+1): New splitters.
2840 (negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
2841 (extendsfdf2, truncdfsf2): New expanders.
2842 (truncdfsf2_i4): New insn.
2843 * t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
2844 (MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
2845 * float-sh.h: When testing for __SH3E__, also test for
2846 __SH4_SINGLE_ONLY__ .
2847 * va-sh.h (__va_freg): Define to float.
2848 (__va_greg, __fa_freg, __gnuc_va_list, va_start):
2849 Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
2850 (__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
2851 (__PASS_AS_FLOAT): Use different definition for __SH4__ and
2853 (TARGET_SH4_P): Define.
2856 * sh.md (movdf_k, movsf_i): Tweak the condition so that
2857 init_expr_once is satisfied about the existence of load / store insns.
2859 * sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
2860 change m constraint in source operand to mr / mf .
2862 * va-sh.h (__va_arg_sh1): Use __asm instead of asm.
2864 * (__VA_REEF): Define.
2865 (__va_arg_sh1): Use it.
2867 * va-sh.h (va_start, va_arg, va_copy): Add parenteses.
2869 Sun Nov 22 21:34:02 1998 Jeffrey A Law (law@cygnus.com)
2871 * i386/dgux.c (struct option): Add new "description field".
2872 * m88k/m88k.c (struct option): Likewise.
2874 Sun Nov 22 16:07:57 PST 1998 Jeff Law (law@cygnus.com)
2876 * version.c: Bump for snapshot.
2878 Sun Nov 22 13:40:02 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2880 * regmove.c (regmove_profitable_p): Use return value of find_matches
2883 Sun Nov 22 02:47:37 PST 1998 Jeff Law (law@cygnus.com)
2885 * version.c: Bump for snapshot.
2887 Sat Nov 21 22:12:09 1998 Jeffrey A Law (law@cygnus.com)
2889 * reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
2890 without reload having been called earlier.
2892 * v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
2894 (v850_reorg): Similarly.
2896 * loop.c (check_dbra_loop): Avoid using gen_add2_insn.
2898 Sat Nov 21 02:18:38 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2900 * loop.c (move_movables): Start of libcall might be new loop start.
2902 Fri Nov 20 12:14:16 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2904 * hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().
2906 Fri Nov 20 08:34:00 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2908 * function.c (nonlocal_goto_handler_slots): Renamed from
2909 nonlocal_goto_handler_slot; now an EXPR_LIST chain.
2910 (push_function_context_to): Adjust for this change.
2911 (pop_function_context_from): Likewise.
2912 (init_function_start): Likewise.
2913 (expand_function_end): Likewise.
2914 * function.h (struct function): Likewise.
2915 * calls.c (expand_call): Likewise.
2916 * explow.c (allocate_dynamic_stack_space): Likewise.
2917 * expr.h (nonlocal_goto_handler_slots): Rename its declaration.
2918 * stmt.c (declare_nonlocal_label): Make a new handler slot for each
2920 (expand_goto): When doing a nonlocal goto, find corresponding handler
2921 slot for it. Don't put the label address in the static chain register.
2922 (expand_end_bindings): Break out nonlocal goto handling code into
2923 three new functions.
2924 (expand_nl_handler_label, expand_nl_goto_receiver,
2925 expand_nl_goto_receivers): New static functions, broken out of
2926 expand_end_bindings and adapted to create one handler per nonlocal
2928 * function.c (delete_handlers): Delete insn if it references any of
2929 the nonlocal goto handler slots.
2930 * i960.md (nonlocal_goto): Comment out code that modifies
2932 * sparc.md (nonlocal_goto): Likewise.
2933 (goto_handler_and_restore_v9): Comment out.
2934 (goto_handler_and_restore_v9_sp64): Comment out.
2936 Thu Nov 19 23:44:38 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2938 * expr.c (STACK_BYTES): Delete unused macro.
2939 * calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
2940 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
2941 (expand_call): Likewise.
2942 (emit_library_call): Likewise.
2943 (emit_library_call_value): Likewise.
2944 * function.c: Provide default for PREFERRED_STACK_BOUNDARY.
2945 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
2946 * explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
2947 (round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
2948 (allocate_dynamic_stack_space): Likewise.
2949 * tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
2950 (STACK_BOUNDARY): Update description to reflect the new situation.
2952 Thu Nov 19 22:20:51 1998 Jeffrey A Law (law@cygnus.com)
2954 * reorg.c (relax_delay_slots): When optimizing for code size, if a
2955 return with a filled delay slot is followed by a return with an
2956 unfilled delay slot, delete the first return and reemit the insn
2957 that was previously in its delay slot.
2959 * i860.c (single_insn_src_p): Add missing parens.
2960 * ginclude/math-3300.h: Likewise.
2962 Thu Nov 19 20:55:59 1998 H.J. Lu (hjl@gnu.org)
2964 * regclass.c (init_reg_sets_1): Add prototype.
2965 (init_reg_modes): Likewise.
2967 1998-11-19 Zack Weinberg <zack@rabi.phys.columbia.edu>
2969 * c-common.c: Change warning messages to say `comparison is
2970 always true' or `comparison is always false' instead of the
2971 confusing `is always 0', `is always 1'.
2973 Thu Nov 19 19:05:49 1998 Per Bothner <bothner@cygnus.com>
2975 * print-tree.c (print_node): After printing BLOCK or BIND_EXPR,
2976 break instead of return (which loses closing '>').
2978 Thu Nov 19 19:34:13 1998 Jeffrey A Law (law@cygnus.com)
2980 * i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
2981 standard 387 constants.
2983 * i386.md (jump): Explicitly set "memory" attribute.
2984 (indirect_jump, prologue_set_stack_ptr): Likewise.
2985 (prologue_get_pc_and_set_got, pop): Likewise.
2986 (allocate_stack_worder, blockage, return_internal): Likewise.
2987 (return_pop_internal, nop): Likewise.
2988 (epilogue_set_stack_ptr, leave): Likewise.
2990 Thu Nov 19 15:42:54 1998 Nick Clifton <nickc@cygnus.com>
2992 * config/arm/coff.h: Set USER_LABEL_PREFIX to "_".
2994 Thu Nov 19 23:20:59 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2996 * reload1.c (reload_reg_free_for_value_p):
2997 Early auto_inc reloads don't conflict with outputs.
2999 Thu Nov 19 12:58:55 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3001 * configure.in: Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
3002 Instead call AC_HEADER_SYS_WAIT.
3004 * collect2.c: Don't provide defaults for sys/wait.h macros.
3006 * protoize.c: Likewise. Also, don't include sys/wait.h.
3008 * system.h: Include sys/wait.h and provide macro defaults.
3010 1998-11-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3012 * Makefile.in (mandir): Set to @mandir@.
3013 (man1dir): New variable to hold the former value of $(mandir).
3014 Replace all uses of $(mandir) by $(man1dir).
3016 Wed Nov 18 16:31:28 1998 Jim Wilson <wilson@cygnus.com>
3018 * reload.c (find_reloads_address_part): If have a CONST_INT, create
3019 a new one before passing it to force_const_mem.
3021 * reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
3022 find_reloads_address call.
3024 Wed Nov 18 22:13:00 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3026 * expr.c (store_expr): Don't generate load-store pair
3027 if TEMP is identical (according to ==) with TARGET.
3029 Tue Nov 17 22:25:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3031 * reload1.c (reload_reg_free_for_value_p): When considered reload
3032 has an output, matching inputs are not sufficient to avoid conflict.
3034 Tue Nov 17 11:51:16 1998 Mark Mitchell <mark@markmitchell.com>
3036 * hash.h (hash_table_key): New type.
3037 (hash_entry): Change `string' field to generic `key'.
3038 (hash_table): Add `comp' and `hash' functions.
3039 (hash_table_init): Take them as input.
3040 (hash_table_init_n): Likewise.
3041 (hash_lookup): Modify for generic keys.
3042 (hash_newfunc): Likewise.
3043 (hash_traverse): Likewise.
3044 (string_hash): New function.
3045 (string_compare): Likewise.
3046 (string_copy): Likewise.
3047 * hash.c (hash_table_init_n): Modify for generic keys.
3048 (hash_table_init): Likewise.
3049 (hash_lookup): Likewise.
3050 (hash_newfunc): Likewise.
3051 (hash_traverse): Likewise.
3052 (string_hash): Split out from hash_lookup.
3053 (string_compare): New function.
3054 (string_copy): Split out from hash_lookup.
3055 * tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
3057 (symbol_hash_lookup): Likewise.
3058 (file_hash_newfunc): Likewise.
3059 (file_hash_lookup): Likewise.
3060 (demangled_hash_newfunc): Likewise.
3061 (demangled_hash_lookup): Likewise.
3062 (tlink_int): Likewise.
3063 (read_repo_file): Likewise.
3064 (recompile_files): Likewise.
3065 (demangle_new_symbols): Likewise.
3066 (scan_linker_output): Likewise.
3068 Tue Nov 17 17:13:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3070 * flow.c (insn_dead_p): New argument NOTES. Changed all callers.
3072 Mon Nov 16 17:56:07 1998 David Edelsohn <edelsohn@mhpcc.edu>
3074 * rs6000.c (output_mi_thunk): Improve test for local branch.
3076 Mon Nov 16 17:56:07 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
3078 * rs6000.c (output_mi_thunk): Correct test for aggregate values.
3080 Mon Nov 16 21:02:52 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3082 * reload1.c (reload_reg_free_before_p): Delete.
3083 Changed all callers to use reload_reg_free_for_value_p instead.
3084 (reload_reg_free_for_value_p): Handle more reload types.
3085 A RELOAD_FOR_INPUT doesn't conflict with its
3086 RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
3087 Add special case for OUT == const0_rtx.
3088 Added ignore_address_reloads argument. Changed all callers.
3090 Mon Nov 16 02:22:29 1998 Jason Merrill <jason@yorick.cygnus.com>
3092 * toplev.c (compile_file): Don't pedwarn about undefined static
3093 functions just because we passed -Wunused.
3095 Mon Nov 16 04:41:41 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3097 * function.c (purge_addressof_1): Unshare rtl created by
3100 Mon Nov 16 04:23:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3102 * regmove.c (regmove_optimize): Don't do anything but
3103 optimize_reg_copy[123] when flag_regmove is not set.
3105 Sat Nov 14 15:05:07 1998 Richard Henderson <rth@cygnus.com>
3107 * alpha.md (addsi3, subsi3): Revise 5 Nov change to store DImode
3108 value in paradoxical SImode result, rather than truncating midpoint.
3110 Fri Nov 13 22:19:23 1998 Richard Henderson <rth@cygnus.com>
3112 * alpha.c (reg_not_elim_operand): New.
3113 * alpha.h (PREDICATE_CODES): Add it.
3114 * alpha.md (s48addq, s48subq patterns): Use it as the predicate
3115 for the multiplicand.
3117 Fri Nov 13 22:50:37 1998 David Edelsohn <edelsohn@mhpcc.edu>
3119 * rs6000.md (movsf): Remove explicit secondary-reload-like
3120 functionality. Only truncate SFmode store if in FPR.
3121 (movsf splitters): Combine const_double splitters.
3122 (movsf_hardfloat): Add GPR support.
3124 Fri Nov 13 11:02:11 1998 Stan Cox <scox@cygnus.com>
3126 * splet.h (SUBTARGET_OVERRIDE_OPTIONS): New to
3127 deprecate -mlive-g0 and -mbroken-saverestore.
3128 * t-splet (MULTILIB_OPTIONS): Likewise.
3130 * sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
3131 in a leaf function. Clarify total_size/extra_size relationship.
3133 Thu Nov 12 19:20:57 1998 Geoffrey Noer <noer@cygnus.com>
3135 * i386/cygwin32.asm: Delete.
3136 * i386/cygwin.asm: New file, renamed from cygwin32.asm.
3137 * i386/cygwin32.h: Delete.
3138 * i386/cygwin.h: New file, renamed from cygwin32.h.
3139 * i386/t-cygwin32: Delete.
3140 * i386/t-cygwin: New file, renamed from t-cygwin32. Include
3141 cygwin.asm instead of cygwin32.asm. Remove "32" from comment.
3142 * i386/x-cygwin32: Delete.
3143 * i386/x-cygwin: New file, renamed from x-cygwin32.
3144 * i386/xm-cygwin32: Delete.
3145 * i386/xm-cygwin: New file, renamed from xm-cygwin32. Use newly
3146 renamed cygwin_ funcs for path translations.
3147 * i386/win32.h: Define __CYGWIN__ when -mcygwin given.
3148 * i386/winnt.c: Remove "32" from comment about cygwin.
3149 * i386/mingw32.h: Fix references to cygwin32.h in light of above.
3150 * rs6000/cygwin32.h: Delete.
3151 * rs6000/cygwin.h: New file, renamed from cygwin32.h. Add
3152 -D__CYGWIN__ to CPP_PREDEFINES.
3153 * rs6000/x-cygwin32: Delete.
3154 * rs6000/x-cygwin: New file, renamed from x-cygwin32.
3155 * rs6000/xm-cygwin32: Delete.
3156 * rs6000/xm-cygwin: New file, renamed from xm-cygwin32.
3158 * configure.in: Check for cygwin* instead of cygwin32. Account
3159 for the rename of cygwin-related config files to lose the "32"s.
3160 * configure: Regenerate.
3162 * cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
3163 toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.
3165 Wed Nov 11 12:25:19 1998 Tom Tromey <tromey@cygnus.com>
3167 * Makefile.in (JAVAGC): New macro.
3168 * configure: Rebuilt.
3169 * configure.in: Recognize --enable-java-gc argument. Subst
3172 Thu Nov 12 03:32:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3174 Handle equivalences that have been obscured by gcse:
3176 * reload1.c (reload): Handle equivalences set up in multiple places.
3177 * local-alloc.c (reg_equiv_init_insns): New variable.
3178 (no_equiv): New function.
3179 (update_equiv_regs): Handle equivalences set up in multiple places.
3180 Don't ignore an insn just because its destination is likely to be
3183 Wed Nov 11 13:46:13 1998 Jim Wilson <wilson@cygnus.com>
3185 * except.c (expand_eh_return): Readd force_operand call lost in
3188 Tue Nov 10 17:04:11 1998 David Edelsohn <edelsohn@mhpcc.edu>
3190 * rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.
3192 1998-11-09 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3194 * dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.
3196 Mon Nov 9 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3198 * regmove.c (regmove_optimize): Fix error in last change.
3200 Mon Nov 9 16:37:52 1998 Andrew Cagney <cagney@b1.cygnus.com>
3202 * mips.c (function_prologue): When TARGET_MIPS16, adjust the register
3203 offset in the .mask pseudo to compensate for frame pointer adjustments.
3204 (mips16_fp_args, build_mips16_call_stub): For little endian, do not
3205 word swap arguments moved to/from FP registers.
3206 * mips16.S (DFREVCMP): Reverse arguments to OPCODE.
3208 Mon Nov 9 09:47:06 PST 1998 Jeff Law (law@cygnus.com)
3210 * version.c: Bump for snapshot.
3212 Mon Nov 9 02:14:14 PST 1998 Jeff Law (law@cygnus.com)
3214 * version.c: Bump for snapshot.
3216 Mon Nov 9 03:06:24 1998 Jeffrey A Law (law@cygnus.com)
3218 * reload1.c (delete_output_reload_insn): If a pseudo is set multiple
3219 times, then it can not be completely replaced.
3221 Mon Nov 9 00:39:02 1998 Richard Henderson <rth@cygnus.com>
3223 * alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.
3225 Sun Nov 8 17:50:30 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3227 * gansidecl.h: Prepend a "G" to the macro wrapping this file
3228 (to distinguish it from the macro wrapping ansidecl.h.)
3229 Include libiberty's ansidecl.h. Remove all redundant definitions.
3230 Define the PROTO() style macros in terms of the PARAMS() ones.
3233 * calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
3234 __STDC__, when deciding whether to use ANSI variable args.
3235 (emit_library_call_value): Likewise.
3237 * cccp.c (error): Likewise.
3238 (warning): Likewise.
3239 (error_with_line): Likewise.
3240 (warning_with_line): Likewise.
3241 (pedwarn): Likewise.
3242 (pedwarn_with_line): Likewise.
3243 (pedwarn_with_file_and_line): Likewise.
3246 * cexp.y (error): Likewise.
3247 (pedwarn): Likewise.
3248 (warning): Likewise.
3250 * collect2.c (fatal_perror): Likewise.
3254 * combine.c (gen_rtx_combine): Likewise.
3256 * cpperror.c (cpp_message): Likewise.
3257 (cpp_fatal): Likewise.
3259 * cpplib.c (cpp_error): Likewise.
3260 (cpp_warning): Likewise.
3261 (cpp_pedwarn): Likewise.
3262 (cpp_error_with_line): Likewise.
3263 (cpp_warning_with_line): Likewise.
3264 (cpp_pedwarn_with_line): Likewise.
3265 (cpp_pedwarn_with_file_and_line): Likewise.
3267 * cpplib.h: Don't define PARAMS() macro.
3269 * demangle.h: Likewise.
3271 * doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
3272 when deciding whether to use ANSI variable args.
3274 * emit-rtl.c (gen_rtx): Likewise.
3275 (gen_rtvec): Likewise.
3277 * final.c (asm_fprintf): Likewise.
3279 * fix-header.c (cpp_message): Likewise.
3281 (cpp_fatal): Likewise.
3283 * gcc.c (concat): Likewise.
3287 * genattr.c (fatal): Likewise.
3289 * genattrtab.c (attr_rtx): Likewise.
3290 (attr_printf): Likewise.
3293 * gencodes.c (fatal): Likewise.
3295 * genconfig.c (fatal): Likewise.
3297 * genemit.c (fatal): Likewise.
3299 * genextract.c (fatal): Likewise.
3301 * genflags.c (fatal): Likewise.
3303 * genopinit.c (fatal): Likewise.
3305 * genoutput.c (fatal): Likewise.
3308 * genpeep.c (fatal): Likewise.
3310 * genrecog.c (fatal): Likewise.
3312 * halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
3313 deciding whether to declare `tree_node' and `rtx_def'.
3315 * hash.h: Don't define stuff we get from gansidecl.h.
3317 * mips-tfile.c: Likewise. Define __proto() in terms of PARAMS().
3318 (fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
3319 whether to use ANSI variable args.
3322 * prefix.c (concat): Likewise.
3326 * system.h: Likewise.
3328 * toplev.c (error_with_file_and_line): Likewise.
3329 (error_with_decl): Likewise.
3330 (error_for_asm): Likewise.
3333 (warning_with_file_and_line): Likewise.
3334 (warning_with_decl): Likewise.
3335 (warning_for_asm): Likewise.
3336 (warning): Likewise.
3337 (pedwarn): Likewise.
3338 (pedwarn_with_decl): Likewise.
3339 (pedwarn_with_file_and_line): Likewise.
3341 (really_sorry): Likewise.
3343 * toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
3344 whether to declare `tree_node' and `rtx_def'.
3346 * tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
3347 deciding whether to use ANSI variable args.
3348 (build_nt): Likewise.
3349 (build_parse_node): Likewise.
3351 Sun Nov 8 13:10:55 PST 1998 Jeff Law (law@cygnus.com)
3353 * version.c: Bump for snapshot.
3355 Sat Nov 7 23:34:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3357 * Makefile.in (libcpp.a): Check RANLIB_TEST before runing RANLIB.
3359 Sat Nov 7 22:26:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
3361 * collect2.c (main, case 'b'): Use else if.
3363 Sat Nov 7 15:35:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3365 * configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
3366 Arrange to include gansidecl.h in {ht}config.h & tm.h just
3367 before the config/ directory headers.
3368 (tm_file_list, host_xm_file_list, build_xm_file_list): Handle
3369 gansidecl.h in the list of dependencies.
3371 * Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
3372 (TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
3373 mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
3374 gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
3375 dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
3376 cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
3379 * cccp.c: Don't include gansidecl.h.
3381 * collect2.c: Likewise.
3382 * config/c4x/c4x.c: Likewise.
3383 * config/v850/v850.h: Likewise.
3384 * cppalloc.c: Likewise.
3385 * cpperror.c: Likewise.
3386 * cppexp.c: Likewise.
3387 * cppfiles.c: Likewise.
3388 * cpphash.c: Likewise.
3389 * cpplib.c: Likewise.
3390 * cppmain.c: Likewise.
3391 * cppulp.c: Likewise.
3392 * demangle.h: Likewise.
3393 * doprint.c: Likewise.
3394 * dyn-string.c: Likewise.
3395 * eh-common.h: Likewise.
3396 * fix-header.c: Likewise.
3397 * frame.c: Likewise.
3400 * gen-protos.c: Likewise.
3401 * gencheck.c: Likewise.
3402 * halfpic.h: Likewise.
3404 * machmode.h: Likewise.
3405 * mbchar.c: Likewise.
3406 * prefix.c: Likewise.
3407 * protoize.c: Likewise.
3408 * recog.h: Likewise.
3410 * scan-decls.c: Likewise.
3412 * varray.h: Likewise.
3414 Sat Nov 7 11:37:53 1998 Richard Henderson <rth@cygnus.com>
3416 * i386.md (call_value_pop): If we're not popping anything,
3417 defer to call_value.
3418 (call_pop): Likewise defer to call.
3420 Sat Nov 7 02:49:56 1998 Richard Henderson <rth@cygnus.com>
3422 * function.c (purge_addressof): Clear purge_addressof_replacements
3423 only after processing the whole function.
3425 Sat Nov 7 00:54:55 1998 Jeffrey A Law (law@cygnus.com)
3427 * reload1.c (reload): If we can not perform a particular elimination
3428 when we thought we could earlier, then we must always iterate through
3429 the loop at least one more time.
3431 Fri Nov 6 19:37:33 1998 Richard Henderson <rth@cygnus.com>
3433 * alpha.c (add_operand): Simplify the CONST_INT match.
3434 (sext_add_operand): Correct typo in comparison by using
3435 CONST_OK_FOR_LETTER_P.
3436 * alpha.md (s?addq): Use sext_add_operand to allow the negative
3437 constant alternatives to be generated.
3438 (mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
3439 small constants, since the hw instructions do.
3441 Fri Nov 6 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3443 * reload1.c (emit_reload_insns): When rewriting the SET_DEST of a
3444 previous insn to store directly into our reload register, make sure
3445 that if the source of the previous insn is a reload register, its
3446 spill_reg_store and spill_reg_stored_to values are cleared.
3448 Fri Nov 6 16:35:10 1998 David Edelsohn <edelsohn@mhpcc.edu>
3450 * rs6000.md (floatunssidf2_internal splitter): Use base register
3451 operand, not hard-coded SP.
3453 Fri Nov 6 04:07:53 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3455 * jump.c (calculate_can_reach_end): Fix thinko.
3457 Fri Nov 6 00:16:04 1998 Jeffrey A Law (law@cygnus.com)
3459 * reorg.c (fill_simple_delay_slots): Fix typo.
3461 * romp.h (LEGITIMIZE_ADDRESS): Fix typo.
3463 Fri Nov 6 00:10:00 1998 Jan Hubicka (hubicka@freesoft.cz)
3465 * i386.md (extendsidi2): Use # in the output template.
3466 (extendsidi splitters): New splitters.
3468 Thu Nov 5 11:13:27 1998 Nick Clifton <nickc@cygnus.com>
3470 * configure.in: Use unknown-elf.h as tm_file for arm-elf
3472 * configure: Regenerate.
3474 Thu Nov 5 07:59:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3476 * jump.c (init_label_info, delete_barrier_successors,
3477 mark_all_labels, delete_unreferenced_labels,
3478 delete_noop_moves, calculate_can_reach_end): New functions broken
3479 out of jump_optimize.
3480 (jump_optimize): Use them.
3482 Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
3484 * except.c (expand_fixup_region_end): Make sure outer context labels
3485 are not issued in an inner context during cleanups.
3487 Thu Nov 5 04:03:06 1998 Richard Henderson <rth@cygnus.com>
3489 * alpha.md (addsi3, subsi3): No new temporaries once cse is
3492 Thu Nov 5 03:29:19 1998 Richard Henderson <rth@cygnus.com>
3494 * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
3495 to expose this midpoint to CSE.
3497 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3499 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
3501 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3503 * configure.in: Bring over gcc2 change of Nov 19 1997.
3505 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
3507 * toplev.c (output_lang_identify): Make definition dependent on
3508 ASM_IDENTIFY_LANGUAGE.
3510 * print-rtl.c (spaces): Make static.
3512 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
3514 * extend.texi: Clarify proper uses for register clobbers in asms.
3516 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3518 * recog.h (enum op_type): Define.
3519 (constrain_operands): Adjust prototype.
3520 (recog_op_type): Declare new variable.
3521 * recog.c (recog_op_type): New variable.
3522 (insn_invalid_p): Allow modifying an asm statement after reload.
3523 (extract_insn): Set up recog_op_type.
3524 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
3525 Don't compute operand types, use recog_op_type.
3526 Use the information computed by extract_insn instead of the previous
3527 method of finding it by insn code number.
3528 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
3529 * reorg.c (fill_slots_from_thread): Likewise.
3530 * reload1.c (reload_as_needed): Likewise.
3531 (gen_reload): Likewise.
3532 (inc_for_reload): Likewise.
3533 (reload_cse_simplify_operands): Likewise.
3534 Use the information computed by extract_insn instead of the previous
3535 method of finding it by insn code number.
3536 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
3538 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
3539 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
3540 Use the information computed by extract_insn instead of the previous
3541 method of finding it by insn code number.
3542 * regmove.c (find_matches): Likewise. Change meaning of the return
3543 value to be nonzero if the optimization can be performed, zero if
3544 not. All callers changed.
3545 Shorten some variable names to fix formatting problems.
3546 (regmove_optimize): Shorten some variable names to fix formatting
3548 Use the information computed by extract_insn instead of the previous
3549 method of finding it by insn code number.
3550 * regclass.c (scan_one_insn): Likewise.
3551 (record_reg_classes): Don't compute operand types, use recog_op_type.
3552 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
3553 recog_constraints instead.
3555 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
3557 * rtl.h (flow2_completed): Declare.
3558 * flow.c (flow2_completed): Definition.
3559 * toplev.c (rest_of_compilation): Set and clear flow2_completed
3562 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
3564 * Makefile.in (libcpp.a): Ranlib libcpp.a
3566 * cppulp.c (user_label_prefix): Initialize.
3568 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
3570 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
3571 at a RETURN if current_function_sp_is_unchanging is set.
3573 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3575 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
3577 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
3579 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
3580 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
3581 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
3582 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
3583 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
3584 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
3586 (LIB_SPEC): Handle -mno-cyginw option.
3587 (LINK_SPEC): Handle -mdll.
3589 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3591 * reload.c (find_reloads): Fix test for usage by other reload
3592 to handle secondary reloads properly.
3594 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3596 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
3597 intermediate structure which has exactly the members provided by
3598 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
3599 static intermediate structure.
3601 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
3602 from the intermediate structure. Do the same analogous fix in
3603 the case where ELIMINABLE_REGS is not defined.
3605 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
3607 * pa.h (SELECT_SECTION): Fix thinko.
3609 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
3611 * dwarf2out.c (output_call_frame_info): Comments on last change.
3613 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
3615 * arm.c (add_constant): When taking the address of an item in the
3616 pool, get the mode of the item addressed.
3618 * arm.c (final_prescan_insn case INSN): If an insn doesn't
3619 contain a SET or a PARALLEL, don't consider it for conditional
3622 Restore ABI compatibility for NetBSD.
3623 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
3625 (RETURN_IN_MEMORY): Likewise.
3627 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
3629 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
3630 (m32r_output_block_move): Rewrite bytes < 4 handling.
3632 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3634 * configure.in: Call AC_FUNC_VFORK.
3636 * collect2.c: Define VFORK_STRING as a printable string for
3637 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
3638 defined, include vfork.h. If VMS is defined, define vfork()
3639 appropriately. Remove vfork check on USG, we're using autoconf.
3640 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
3641 checking locally what string to pass.
3642 (scan_prog_file): Likewise.
3643 (scan_libraries): Likewise.
3645 * gcc.c: Remove vfork check on USG, we're using autoconf.
3646 Besides, no calls to vfork/fork occur in this file.
3648 * protoize.c: Likewise.
3650 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3652 * configure.in (DEFAULT_LINKER): renamed from LD
3653 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
3654 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
3655 * configure: rebuilt
3657 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3659 * BUGS: fix the regexp for `more' to find the appropriate node.
3660 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
3662 * BUGS: added link to the WWW FAQ
3664 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
3666 * version.c: Bump for snapshot.
3668 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
3670 * From Christian Gafton:
3671 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
3672 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
3673 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
3675 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
3677 * c-common.c (c_get_alias_set): Allow all type-punning through
3678 unions. Don't get confused about the type of a bit-field, despite
3679 the antics of build_modify_expr.
3681 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
3683 * fixinc.sco: Paramaterize #include_next values.
3684 * fixinc/fixinc.sco: Likewise.
3686 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
3688 * toplev.c (rest_of_compilation): No longer set reload_completed.
3689 * reload1.c (reload): Set it here. Perform instruction splitting
3690 after reload has completed if we will be running the scheduler
3693 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
3695 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
3696 EH region if exceptions are enabled and we're performing cross
3698 (find_cross_jump): Exit loop if the insns are in different EH regions.
3700 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
3702 * dwarf2out.c (output_call_frame_info): Use
3703 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
3705 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3707 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
3708 * c-common.c (check_format_info): Don't check for the 'x'
3709 format character twice, instead check for 'x' and 'X'
3711 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
3713 * configure.in (assembler features): Also make gas is configured if
3714 we find it in the souce tree.
3716 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
3718 * i386.c (i386_comp_type_attributes): Compare whether the
3719 attributes are defined, not their tree nodes.
3721 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3723 * configure.in (gxx_include_dir): bitten by autoconf quoting
3725 * configure: rebuilt
3727 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3729 * configure.in: Ignore non-absolute value in $AS.
3731 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
3733 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
3735 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
3737 * configure.in (msdosdjgpp): Set exeext and target_alias.
3739 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3741 * flow.c (XNMALLOC): New macro.
3742 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
3744 (add_edge, add_edge_to_label): New static functions.
3745 (free_bb_memory): New function.
3746 (flow_delete_insn): Delete function.
3747 (basic_block_drops_in): Delete variable.
3748 (find_basic_blocks): Allocate and initialize basic_block_head,
3749 basic_block_succ. Don't allocate basic_block_drops_in.
3750 Call free_bb_memory at the beginning.
3751 (find_basic_blocks_1): Don't do multiple passes.
3752 Delete code to compute basic_block_drops_in.
3753 After calling make_edges, mark blocks reached by current block live.
3754 Update test for unreachable live blocks.
3755 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
3757 Simplify to call add_edge_to_label when a LABEL_REF is found.
3758 (make_edges): Simplify to call add_edge_to_label instead of
3759 mark_label_ref most of the time.
3760 Compute here whether control drops into the next block.
3761 (delete_unreachable_blocks): Return void. All callers changed.
3762 Delete unreachable blocks in reverse order.
3763 After deleting all unreachable blocks, renumber the remaining ones
3764 and update n_basic_blocks.
3765 (delete_block): Speed up deletion a bit.
3766 Don't set basic_block_drops_in for deleted blocks.
3767 (free_basic_block_vars): Don't free basic_block_drops_in.
3768 (life_analysis_1): Update to use new edge representation.
3769 (dump_flow_info): Delete code to print basic block info; call
3770 dump_bb_data instead.
3771 (compute_preds_succs): Delete code to recompute basic_block_drops_in
3772 and uid_block_number.
3773 Simply copy the previously computed cfg.
3774 (dump_bb_data): New arg LIVE_INFO. All callers changed.
3775 Print register lifetime information if LIVE_INFO is nonzero.
3776 * basic-block.h (dump_bb_data): Adjust prototype.
3777 * gcse.c (gcse_main): Update call to dump_bb_data.
3778 * rtl.h (free_bb_memory): Declare.
3779 * toplev.c (rest_of_compilation): Call free_bb_memory.
3781 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
3782 (update_eliminable_offsets): Don't compute it.
3783 (set_initial_elim_offsets): Don't initialize it.
3784 Break out some code into set_initial_label_offsets so the rest of
3785 this function can be called from reload_as_needed.
3786 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
3787 ELIMINABLE_REGS isn't.
3788 (set_initial_label_offsets): New function, broken out of
3789 set_initial_elim_offsets.
3790 (set_offsets_for_label): New function, broken out of set_label_offsets
3791 and reload_as_needed.
3792 (reload): Call the two new functions.
3793 (reload_as_needed): Call set_initial_elim_offsets instead of
3794 duplicating the code. Likewise for set_offsets_for_label.
3796 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
3797 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
3798 any hard reg, reg_reloaded_dead contains valid data.
3800 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
3802 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
3803 "stdcall" and "cdecl" attributes.
3805 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
3807 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
3808 handle deleted no-op moves of hard registers.
3809 * haifa-sched.c (update_flow_info): Likewise.
3811 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
3813 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
3814 of the sequences to reload the HILO register which do not actually
3817 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
3819 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
3821 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
3823 * except.c (emit_eh_context): Make the EH context register stay alive
3824 at -O0 so stupid.c doesn't get confused.
3826 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3828 * emit-rtl.c (try_split): Do not try to split a BARRIER.
3830 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
3831 Jeffrey A Law (law@cygnus.com)
3833 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
3834 (zero_extendsidi2): Use # in output template and handle completely by
3836 (zero_extend splitters): New define_splits.
3837 (ashiftrt_32): New pattern.
3839 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
3841 * tree.c (append_random_chars): New fn.
3842 (get_file_function_name_long): Use it.
3844 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
3846 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
3847 (LIBCPP_OBJS): New. Add cppulp.o.
3848 (cppmain, fix-header): Depend on and use libcpp.a.
3849 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
3850 of the individual object files.
3851 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
3854 * cccp.c (user_label_prefix): New.
3855 (main): Set it off -f*leading-underscore.
3856 (special_symbol): Use it.
3857 * cpplib.c (special_symbol): Likewise.
3858 (cpp_handle_option): Handle -f*leading-underscore.
3859 * cppulp.c: New file.
3861 * output.h (user_label_prefix): Declare it.
3862 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
3863 * toplev.c (f_options, main): Handle -f*leading-underscore.
3865 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
3866 referencing USER_LABEL_PREFIX directly.
3867 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
3868 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
3869 * final.c (asm_fprintf): Use user_label_prefix instead.
3870 * arm/thumb.c (thumb_print_operand): Likewise.
3872 * gcc.c (default_compilers): Pass -f*leading-underscore on to
3873 cpp wherever appropriate.
3875 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
3877 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
3878 specific compiler switches.
3880 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
3882 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
3885 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3887 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
3888 structure which has exactly the members provided by EXTRA_SPECS.
3889 Xmalloc() the real `extra_specs', and initialize it from this
3890 intermediate structure.
3892 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
3894 * mips.h (EXTRA_SPECS): Likewise.
3896 * sparc.h (EXTRA_SPECS): Likewise.
3898 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3900 * function.c (purge_addressof_1): Instead of aborting when a
3901 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
3902 work just put the ADDRESSOF on stack. Otherwise remember all such
3903 successfull replacements, so that exactly the same replacements
3904 can be made on the REG_NOTEs. Remove the special case for CALL
3906 (purge_addressof_replacements): New variable.
3907 (purge_addressof): Clear it at end.
3909 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
3911 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
3912 (lang_init): Call check_newline always.
3913 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
3914 cpp_start_read, set yy_cur and yy_lim to read from
3915 parse_in.token_buffer, so that we'll see the first #line
3917 * cpplib.c (cpp_start_read): finclude the main input file
3918 before processing -include/-imacros. Process -imacros and
3919 -include separately, and handle -include by stacking a
3920 buffer for the file in question as if it'd been #included.
3921 * toplev.c (documented_lang_options) Recognize -H when
3924 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
3926 * cpplib.c: Merge do_once into do_pragma. Break file handling
3927 code out of do_include.
3928 Move append_include_chain, deps_output,
3929 file_cleanup, redundant_include_p, import_hash,
3930 lookup_import, add_import, read_filename_string, read_name_map,
3931 open_include_file, finclude, safe_read to cppfiles.c.
3932 Move prototypes for deps_output, append_include_chain,
3933 finclude to cpplib.h. Move definition of struct
3934 file_name_list there also.
3936 * cppfiles.c: New file. Contains all the above functions
3937 broken out of cpplib.c; also hack_vms_include_specification
3938 from cccp.c and find_include_file, a new function broken out of
3941 * Makefile.in (cppmain): Depend on cppfiles.o.
3942 (fix-header): Likewise.
3943 (cppfiles.o): New target.
3944 * configure.in (--enable-c-cpplib): Add cppfiles.o to
3945 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
3947 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
3949 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
3950 if pending_types is non-zero.
3951 (dwarfout_finish): Verify pending_types is zero before finishing.
3953 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
3955 * expr.c (convert_move): Use shifts to perform the move if a
3956 suitable extend pattern cannot be found. Code written by
3957 Richard Henderson <rth@cygnus.com>.
3959 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3961 * regclass.c (renumber, regno_allocated): New static variables, moved
3962 out of allocate_reg_info.
3963 (allocate_reg_info): Move these two variables outside the function.
3964 Move code to free memory into new function free_reg_info.
3965 (free_reg_info): New function, broken out of allocate_reg_info.
3966 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
3967 * rtl.h (allocate_reg_info): Don't declare.
3968 (free_reg_info): Declare.
3970 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
3972 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
3974 * toplev.c (compile_file): Temporarily revert last change.
3976 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
3978 * c-typeck.c (convert_for_assignment): Parenthesize.
3980 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3982 * reload1.c (delete_output_reload): Avoid ambigous else.
3984 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
3986 * toplev.c (compile_file): Call allocate_reg_info to free register
3988 * rtl.h (allocate_reg_info): Declare.
3990 * PROJECTS: Remove entry for local spilling.
3992 * final.c (cleanup_subreg_operands): New function.
3993 (final_scan_insn): Use it.
3994 (alter_subreg): Clear the "used" field when we turn a SUBREG into
3996 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
3997 operands when reload has finished.
3998 * reload.h (cleanup_subreg_operands): Declare..
3999 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
4000 reload. Handled in reload itself.
4002 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4004 * reload1.c (verify_initial_offsets): New function.
4005 (reload): Call it after reload_as_needed. Also verify that the frame
4006 size stays constant during reload_as_needed.
4007 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
4009 * reload.h (struct insn_chain): Add need_operand_change element.
4010 * reload1.c (new_insn_chain): Clear it.
4011 (calculate_needs_all_insns): Set it; don't overload need_reload.
4012 (reload_as_needed): Use it.
4014 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
4015 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
4016 and reload_address_index_reg_class.
4017 (find_reloads_address_1): Likewise.
4018 * reload.h (reload_address_base_reg_class,
4019 reload_address_index_reg_class): Don't declare.
4020 * reload1.c (reg_old_renumber, pseudo_previous_regs,
4021 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
4022 (used_spill_regs): Now static.
4023 (reload_address_base_reg_class, reload_address_index_reg_class,
4024 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
4025 basic_block_needs, max_needs, group_size, group_mode, max_groups,
4026 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
4029 (init_reload): Delete code to compute base/index reg classes.
4030 (reload): Delete variable J.
4031 Delete code to manage basic_block_needs.
4032 Don't compute regs_explicitly_used.
4033 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
4034 pseudo_previous_regs.
4035 Initialize bad_spill_regs_global.
4036 Don't call order_regs_for_reload here.
4037 Don't initialize spill_reg_order and n_spills.
4038 Don't forbid explicitly used regs to be used for spill regs.
4039 Change main loop to infinite loop, with explicit break statements.
4040 Make SOMETHING_CHANGED variable local to that loop.
4041 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
4042 max_groups_insn, max_nongroups_insn, group_size, group_mode.
4043 Make sure spilled_speudos is cleared before calling spill_hard_reg or
4045 Don't call dump_needs.
4046 Delete code to reset potential_reload_regs.
4047 Delete code to terminate loop conditional on the global needs variables
4048 showing no further needs.
4049 (calculate_needs_all_insns): Return void. All callers changed.
4050 Initialize somehing_needs_elimination here, not in reload.
4051 Delete avoid_return_reg kludge.
4052 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
4053 All callers changed.
4054 Initialize the group_mode and group_size elements of the arg CHAIN.
4055 Delete code to manage basic_block_needs.
4056 Operate on elements of CHAIN instead of global variables.
4057 Delete avoid_return_reg kludge.
4058 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
4059 All callers changed.
4060 Operate on elements of CHAIN instead of global variables.
4061 Delete special SMALL_REGISTER_CLASSES code.
4062 Delete spill_failure code; now in new_spill_reg.
4063 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
4064 All callers changed.
4065 Operate on elements of CHAIN instead of global variables.
4066 (maybe_mark_pseudo_spilled): New static function.
4067 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
4068 All callers changed.
4069 Operate on elements of CHAIN instead of global variables.
4070 Call order_regs_for_reload here, not in reload.
4071 Initialize spill_reg_order and n_spills.
4072 Simplify test whether an asm insn is involved.
4073 Delete spill_failure code; now in new_spill_reg.
4074 Call maybe_mark_pseudo_spilled for everything marked as live in
4075 CHAIN. Merge CHAIN's used_spill_regs into the global variable
4077 (dump_needs): Take CHAIN arg. No longer static, to prevent the
4078 compiler from optimizing this function (now unused) away.
4079 Operate on elements of CHAIN instead of global variables.
4080 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
4082 Operate on elements of CHAIN instead of global variables.
4083 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
4084 take CHAIN arg. All callers changed.
4085 Operate on elements of CHAIN instead of global variables.
4086 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
4087 CHAIN, NONGROUP args. Return void. All callers changed.
4088 Verify caller isn't trying to spill a pseudo.
4089 Simplify test for illegal reg, just use bad_spill_regs.
4090 Generate better error messages.
4091 Operate on elements of CHAIN instead of global variables.
4092 Mark spilled register in CHAIN's used_spill_regs element.
4093 Don't call spill_hard_reg.
4094 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
4095 Mark spilled hard regs in bad_spill_regs_global.
4096 Mark affected pseudos in spilled_pseudos, but don't spill them.
4097 (ior_hard_reg_set): New static function.
4098 (finish_spills): Return int. All callers changed.
4099 Compute spill_reg_order, n_spills and spill_regs here. Also update
4100 regs_ever_live for regs used as spills.
4101 For every pseudo in spilled_pseudos, spill it and mark the previous
4102 hard reg it had in pseudo_previous_regs. Compute which hard regs
4103 arseudo): New static function.
4104 (order_regs_for_reload): Take CHAIN arg. All callers changed.
4105 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
4106 hard registers explicitly used across the current insn into the set.
4107 Compute hard_reg_n_uses taking only pseudos live across this insn
4109 Tweak sorting of potential_reload_regs.
4110 (compare_spill_regs): Delete function.
4111 (reload_as_needed): Don't sort the spill_regs array, it's computed
4112 in proper order in finish_spills.
4113 Delete avoid_return_reg kludge.
4114 Delete code to manage basic_block_needs.
4115 (allocate_reload_reg): Minor speed/readability tweaks.
4116 Operate on elements of CHAIN instead of global variables.
4117 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
4118 Delete avoid_return_reg kludge.
4119 Initialize reload_reg_used from CHAIN's used_spill_regs element.
4120 Delete unused label FAIL.
4121 (reload_combine): Replce reload_address_index_reg_class with
4123 Don't use used_spill_regs to determine information about lifetime of
4126 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
4128 * toplev.c (display_help): Ignore empty target specific
4129 options, and if -W is also specified on the command line then
4130 display undocumented options.
4132 * config/arm/arm.c: Updated with changes in devo sources.
4133 * config/arm/arm.h: Updated with changes in devo sources.
4134 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
4135 * config/arm/lib1thumb.asm: Add ELF support.
4137 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
4139 * collect2.c (aix64_flag): New variable.
4140 (main, case 'b'): Parse it.
4141 (GCC_CHECK_HDR): object magic number must match mode.
4142 (scan_prog_file): Only check for shared object if valid header.
4143 Print debugging if header/mode mismatch.
4145 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
4147 Added support for arm-elf-linux configuration, submitted by Philip
4148 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
4149 code developed by Catherine Moore <clm@cygnus.com>. The following
4152 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
4155 * configure: Regenerated.
4157 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
4158 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
4159 definitions conditional on their not having been already defined.
4161 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
4162 and .type directives, and add "(PLT)" qualification to function
4165 * config/arm/linux.h: Deleted. This file is now superceeded by
4166 either linux-elf.h or linux-aout.h.
4168 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
4169 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
4171 Move definitions from old linux.h file here.
4173 * config/arm/elf.h: New file. Generic ARM/ELF support.
4175 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
4177 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
4179 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
4180 using the 26bit APCS.
4182 * config/arm/unknown-elf.h: New file. Support for OS'es other
4183 than Linux with ELF.
4185 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
4188 * config/arm/coff.h: Include aout.h for basic assembler macros.
4189 Add support for -mstructure_size_boundary=<n> command line option.
4191 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
4192 command line option. Make macro definitions conditional on their
4193 not having been already defined.
4195 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
4196 command line option.
4199 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
4201 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
4202 has been changed to not include a newline. Use this macro instead.
4203 (output_enumeral_list, const_value_attribute, name_attribute,
4204 comp_dir_attribute, prototyped_attribute, producer_attribute,
4205 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
4206 dwarfout_file_scope_decl, generate_new_sfname_entry,
4207 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
4208 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
4210 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
4212 * combine.c (subst): Process the inputs to a parallel asm_operands
4215 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
4217 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
4219 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
4221 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
4223 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
4225 * version.c: Bump for snapshot.
4227 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
4229 * stmt.c (expand_fixup): Set fixup->before_jump to a
4230 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
4232 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4234 * Makefile.in (recog.o): Depend on toplev.h.
4235 (insn-emit.o): Depend on recog.h.
4236 (insn-peep.o): Depend on recog.h and insn-config.h.
4238 * combine.c (simplify_set): Remove unused variable `scratches'.
4240 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
4241 and `idx' in macro conditional controlling their use.
4243 * genemit.c (main): Make the generated output file include
4244 recog.h. Don't have it declare `insn_operand_constraint', since
4245 we get it from recog.h.
4247 * genpeep.c (main): Make the generated output file include
4248 insn-config.h and recog.h.
4250 * recog.c: Include toplev.h.
4251 (extract_insn): Remove unused variable `p'.
4253 * regclass.c (fix_register): Add missing braces around initializer
4255 (allocate_reg_info): Move variable `i' into the scope where it is
4256 used. Change its type to `size_t'.
4258 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4260 * reload.c (push_reload): When merging reloads, make sure
4261 that reload_in_reg and reload_in are from the same reload in
4264 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
4266 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
4267 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
4269 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
4271 * loop.c (loop_has_tablejump): New variable.
4272 (prescan_loop): Scan for it.
4273 (insert_bct): Replace explicit scan with use of it.
4274 * regclass.c (regclass): Restore loop variable j.
4275 (record_reg_classes): Deterine op_types modifiers and initialize
4276 classes[i] before matching constraints. Handle matching
4279 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
4281 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
4284 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4286 * mips.h (EXTRA_SPECS): Add missing initializers.
4288 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4290 * sparc.h (EXTRA_SPECS): Add missing initializers.
4291 (sparc_defer_case_vector): Provide a prototype.
4293 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
4294 comparing it to the result of a pointer subtraction.
4296 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4298 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
4299 the argument to (unsigned char).
4301 * alpha.h (EXTRA_SPECS): Add missing initializers.
4302 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
4305 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
4307 * flow.c (life_analysis_1): Enable "rescan" code after reload.
4308 (propagate_block): Delete dead code after reload.
4310 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
4311 back Oct 15, 1998 change.
4312 * haifa-sched.c (update_flow_info): Likewise.
4313 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
4315 * mn10200.md (truncated shift): Accept constant inputs too.
4317 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
4319 * machmode.h (mode_mask_array): No longer const.
4320 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
4322 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
4324 * frame.c: Somewhat explain `FDE'.
4325 Suggested by Brendan Kehoe
4327 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
4329 * expr.c (pending_chain): Move up.
4330 (save_expr_status): Do save pending_chain.
4331 (restore_expr_status): And restore it.
4332 * function.h (struct function): Add pending_chain.
4334 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4336 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
4337 did not match the code.
4339 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4341 * regclass.c (regclass): Break out some code into new function
4342 scan_one_insn, and into regclass_init.
4343 (init_cost): New static variable, moved out of regclass.
4344 (regclass_init): Initialize it here, not in .
4345 (scan_one_insn): New static function, broken out of regclass.
4346 * recog.c (apply_change_group): Break out some code into new
4347 function insn_invalid_p.
4348 (insn_invalid_p): New static fn, broken out of apply_change_group.
4350 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
4352 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
4353 reg_reloaded_contents matches incremented pseudo.
4355 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
4357 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4359 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
4360 addressing modes with side effects. These are currently
4361 placeholders for the C4x target.
4363 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4365 * loop.c (express_from): Make sure that when generating a PLUS of
4366 a PLUS, any constant expression appears on the outermost PLUS.
4368 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
4370 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
4371 works if "$(srcdir)" != ".".
4373 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
4375 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
4376 existing SUBREG if we can, otherwise abort.
4378 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
4380 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
4381 `restrict' is applied to a non-pointer variable.
4383 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
4385 * invoke.texi: Document -flang-isoc9x.
4387 * Makefile.in (OBJS): Add splay-tree.o.
4388 (c-common.o): Depend on rtl.h.
4389 (splay-tree.o): List dependencies and provide build rule.
4391 * rtl.h (record_alias_subset): New function.
4392 * alias.c: Include splay-tree.h.
4393 (alias_set_entry): New type.
4394 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
4395 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
4396 (mems_in_disjoin_alias_sets_p): New function.
4397 (alias_set_compare): Likewise.
4398 (insert_subset_children): Likewise.
4399 (get_alias_set_entry): Likewise.
4401 * tree.h (TYPE_RESTRICT): New macro.
4402 (TYPE_UNQUALIFIED): New manifest constant.
4403 (TYPE_QUAL_CONST): Likewise
4404 (TYPE_QUAL_VOLATILE): Likewise.
4405 (TYPE_QUAL_RESTRICT): Likewise.
4406 (tree_type): Add restrict_flag. Reduce count of free bits.
4407 (DECL_POINTER_ALIAS_SET): New macro.
4408 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
4409 (tree_decl): Add pointer_alias_set.
4410 (build_qualified_type): New function.
4411 (build_type_variant): Define in terms of build_qualified_type.
4412 * tree.c (set_type_quals): New function.
4413 (make_node): Initializae DECL_POINTER_ALIAS_SET.
4414 (build_type_attribute_variant): Use build_qualified_type and
4416 (build_type_variant): Rename, and modify, to become...
4417 (build_qualified_type): New function.
4418 (build_complex_type): Use set_type_quals.
4420 * c-tree.h (C_TYPE_OBJECT_P): New macro.
4421 (C_TYPE_FUNCTION_P): Likewise.
4422 (C_TYPE_INCOMPLETE_P): Likewise.
4423 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
4424 (c_apply_type_quals_to_decl): New function.
4425 (c_build_qualified_type): New function.
4426 (c_build_type_variant): Define in terms of c_build_qualified_type.
4427 (flag_isoc9x): Declare.
4428 * c-typeck.c (qualify_type): Use c_build_qualified_type.
4429 (common_type): Change to use TYPE_QUALS.
4430 (comptypes): Likewise.
4431 (convert_for_assignment): Likewise.
4432 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
4433 * c-decl.c (flag_isoc9x): Define.
4434 (c_decode_option): Handle -flang-isoc9x.
4435 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
4436 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
4437 * c-lex.c (init_lex): Deal with restrict.
4438 (init_lex): Don't treat restrict as a reserved word in
4439 -traditional mode, or without -flang-isoc9x.
4440 * c-lex.h (rid): Add RID_RESTRICT.
4441 * c-parse.gperf (restrict, __restrict, __restrict__): Make
4442 equivalent to RID_RESTRICT.
4443 * c-parse.in (TYPE_QUAL): Update comment.
4444 * c-common.c: Include rtl.h.
4445 (c_find_base_decl): New function.
4446 (c_build_type_variant): Rename, and modify, to become ...
4447 (c_build_qualified_type): New function.
4448 (c_apply_type_quals_to_decl): Likewise.
4449 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
4450 a particular alias set for the reference.
4451 * toplev.c (documented_lang_options): Add -flang-isoc9x.
4453 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
4455 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
4456 command line switches.
4458 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
4460 * reload.c (loc_mentioned_in_p): Add missing braces to bind
4463 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
4465 * gcc.c (option_map): Added --classpath and --CLASSPATH.
4467 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
4469 * regclass.c (fix_register): Add error message.
4470 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
4473 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4475 * c-decl.c (warn_missing_noreturn): New global variable.
4476 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
4477 (finish_function): Implement missing noreturn warning.
4479 * c-tree.h (warn_missing_noreturn): Declare extern.
4481 * invoke.texi: Document new flags.
4483 * toplev.c (documented_lang_options): Add description.
4485 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4487 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
4488 loop optimization stable for the C4x.
4489 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
4490 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
4491 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
4493 (c4x_address_conflict): Be more paranoid when packing a volatile
4494 memref in a parallel load/store.
4496 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4498 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
4499 repeat_block_filler): Deleted.
4500 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
4501 Condition code not set if destination register from 'c' class.
4502 (*subbqi3_carry_clobber): Fix typo.
4504 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4506 * reorg.c (steal_delay_list_from_target) Check for insns that
4507 modify the condition codes and effect the direction of the jump
4510 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
4512 * function.c (purge_addressof_1): Replace call to
4513 emit_insns_before() with emit_insn_before().
4515 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
4517 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
4519 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4521 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
4523 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
4525 * gcse.c (compute_hash_table): Correctly identify hard regs which are
4526 clobbered across calls.
4528 * loop.c (scan_loop): Be more selective about what invariants are
4529 moved out of a loop.
4531 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
4533 * version.c: Bump for snapshot.
4535 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
4537 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
4538 static eh_context structure.
4540 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4542 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
4544 (try_combine): Don't update max_scratch.
4545 * flow.c (max_scratch, num_scratch): Delete variables.
4546 (life_analysis_1): Don't initialize max_scratch.
4547 (propagate_block): Don't update max_scratch.
4548 (mark_set_1): Don't increment num_scratch.
4549 * regs.h (max_scratch): Delete declaration.
4551 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
4553 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
4554 is nonzero. This is temporary!
4556 * sched.c (update_flow_info): Handle death notes made invalid by
4557 instruction splitting. Partially reverts Oct 15, 1998 patch.
4558 * haifa-sched.c (update_flow_info): Likewise.
4560 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
4562 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
4563 if it has a nonzero DECL_INITIAL.
4565 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4567 * Makefile.in (flow.o): Depend on recog.h.
4569 * cpplib.h (directive_table): Add missing initializiers.
4570 (finclude): Change type of variable `bsize' to size_t.
4572 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
4574 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
4576 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
4577 `int' when comparing against one.
4578 (cpp_file_line_for_message): Mark parameter `pfile' with
4580 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
4582 * flow.c: Include recog.h.
4583 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
4585 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
4586 `f' with ATTRIBUTE_UNUSED.
4587 (reposition_prologue_and_epilogue_notes): Likewise.
4589 * genopinit.c (gen_insn): Cast argument of ctype functions to
4592 * haifa-sched.c: Include recog.h.
4593 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
4594 comparing against one.
4596 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
4598 * mips-tfile.c (parse_end): Cast the argument of ctype function to
4600 (parse_ent): Likewise.
4601 (parse_input): Likewise.
4603 * optabs.c (init_libfuncs): Likewise.
4605 * protoize.c (find_rightmost_formals_list): Likewise.
4607 * recog.h (const_double_operand): Fix typo in prototype.
4609 * tlink.c (scan_linker_output): Cast the argument of ctype
4610 function to `unsigned char'.
4612 * toplev.c (check_lang_option): Cast the result of `strlen' to
4613 `int' when comparing against one.
4615 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
4617 * gcse.c (dump_cuid_table): Correct typo.
4619 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
4621 * toplev.c (display_help): Prepend '-m' to target specific
4623 (check_lang_option): Ignore text after end of first word of a
4624 language specific option.
4626 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4628 * reload1.c (reg_used_by_pseudo): New static variable.
4629 (choose_reload_regs): Initialize it.
4630 Use it instead of testing spill_reg_order to determine whether a
4631 pseudo is live in a hard register across the current insn.
4632 Fix a typo in a reference to reload_reg_rtx.
4634 * flow.c (propagate_block): Replace code that computes and uses
4635 regs_sometimes_live with simpler code that just walks the set of
4636 currently live registers.
4638 * Makefile.in (insn-extract.o): Fix dependencies.
4639 * genextract.c (main): Generate includes for insn-config.h and
4641 Delete generation of declarations which are now in recog.h.
4642 * genrecog.c (main): Delete generation of definitions which are
4644 * local-alloc.c (block_alloc): Use extract_insn and the variables
4645 it sets up instead of looking up values by insn_code.
4646 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
4647 recog_dup_num): Define here instead of generating the definition in
4649 (recog_n_operands, recog_n_dups, recog_n_alternatives,
4650 recog_operand_mode, recog_constraints, recog_operand_address_p):
4652 (extract_insn): New function.
4653 * recog.h (extract_insn): Declare function.
4654 (which_alternative, recog_n_operands, recog_n_dups,
4655 recog_n_alternatives, recog_operand_mode, recog_constraints,
4656 recog_operand_address_p): Declare variables.
4657 * regclass.c (n_occurrences): New static function.
4658 * reload.c (n_occurrences): Delete function.
4659 (find_reloads): Use extract_insn.
4660 * reload.h (n_occurrences): Delete declaration.
4662 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
4664 * reload1.c (reload_as_needed): Fix test for when to call
4665 update_eliminable_offsets.
4667 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4669 Fix consistency problems with reg_equiv_{mem,address};
4670 Improve reload inheritance;
4672 * reload.c (reload_out_reg): New variable.
4673 (loc_mentioned_in_p, remove_address_replacements): New functions.
4674 (remove_replacements): Deleted.
4675 (push_reload): Set reload_out_reg[i].
4676 When merging, also set reload_{in,out}_reg[i], and remove
4677 duplicate address reloads.
4678 (combine_reloads): Copy reload_out_reg[i].
4679 (find_reloads): Do make_memloc substitution also when
4680 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
4682 Include *recog_operand_loc in commutativity operand changes.
4683 Generate optional output reloads.
4684 Delete reference to n_memlocs. Don't set *recog_operand_loc before
4685 processing operands. Call make_memloc in reg_equiv_address code.
4686 Set *recog_operand_loc only after processing operands, and only
4687 if replace is true. Return a value.
4688 When changing address reload types for operands that didn't get
4689 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
4690 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
4691 Don't emit USEs for pseudo SUBREGs when not replacing.
4692 (find_reloads_address): Do make_memloc substitution also when
4693 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
4695 (find_reloads_toplev): Likewise.
4696 Call make_memloc in reg_equiv_address code.
4697 (debug_reload_to_stream): Add code to output reload_out_reg.
4698 (make_memloc): Delete local variable i, ifdefed out code, and
4699 references to memlocs and n_memlocs.
4700 (memlocs, n_memlocs): Delete.
4701 (push_secondary_reload): Clear reload_out_reg.
4702 (find_reloads_address_1): Provide memrefloc argument to all calls
4703 to find_reloads_address.
4704 In AUTO_INC code, handle non-directly addressable equivalences properly.
4705 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
4706 (find_reloads): Add return type.
4707 (remove_address_replacements, deallocate_reload_reg): Declare.
4708 * reload1.c (num_not_at_initial_offset): No longer static.
4709 (delete_address_reloads, delete_address_reloads_1): Likewise.
4710 (deallocate_reload_reg): New function.
4711 (spill_reg_stored_to): New array.
4712 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
4713 (eliminate_regs_in_insn): Move assignments of previous_offset and
4714 max_offset fields, and recalculation of num_not_at_initial_offset
4715 into new static function:
4716 (update_eliminable_offsets) .
4717 (reload_as_needed): Call update_eliminable_offsetss after calling
4719 Call forget_old_reloads_1 with contents of reloaded auto_inc
4720 expressions if the actual addressing can't be changed to match the
4722 (choose_reload_regs): For inheritance, replace
4723 reload_reg_free_before_p test with reload_reg_used_at_all test, and
4724 remove stand-alone reload_reg_used_at_all test.
4725 Use reload_out_reg to determine which reload regs have output reloads.
4726 Treat reload_override_in more similar to inherited reloads.
4727 Handle (subreg (reg... for inheritance.
4728 For flag_expensive_optimizations, add an extra pass to remove
4729 unnecessary reloads from known working inheritance.
4730 Delete obsolete code for pseudos replaced with MEMs.
4731 Handle inheritance from auto_inc expressions.
4732 (emit_reload_insns): If reload_in is a MEM, set OLD to
4734 Don't reload directly from oldequiv; if it's a pseudo with a
4735 stack slot, use reload_in[j].
4736 Check that reload_in_reg[j] is a MEM before replacing reload_in
4737 from reg_reloaded_contents.
4738 Include non-spill registers in reload inheritance processing.
4739 Also try to use reload_out_reg to set spill_reg_store /
4740 reg_last_reload_reg.
4741 In code to set new_spill_reg_store, use single_set to find out if
4742 there is a single set.
4743 Add code that allows to delete optional output reloads.
4744 Add code to allow deletion of output reloads that use no spill reg.
4745 At the end, set reload_override_in to oldequiv.
4746 Also call delete_output_reload if reload_out_reg is equal to old
4748 Add code to call delete_output_reload for stores with no matching load.
4749 Set / use spill_reg_stored_to.
4750 Handle case where secondary output reload uses a temporary, but
4751 actual store isn't found.
4752 When looking for a store of a value not loaded in order to call
4753 delete_output_reload, count_occurences should return 0 for no
4754 loads; but discount inherited input reloadill_reg_stored_to.
4755 Do checks for extra uses of REG. Changed all
4757 Use delete_address_reloads.
4758 (reload): Take return value of find_reloads into account.
4759 If a no-op set needs more than one reload, delete it.
4760 (reload_reg_free_before_p): RELOAD_FOR_INPUT
4761 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
4762 for the same operand.
4763 (clear_reload_reg_in_use): Check for other reloads that keep a
4765 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
4766 RELOAD_FOR_OPADDR_ADDR.
4767 Take into account when an address address reload is only needed
4768 for the address reload we are considering.
4769 (count_occurrences): Use rtx_equal_p for MEMs.
4770 (inc_for_reload): Return instruction that stores into RELOADREG.
4771 New argument two, IN, and rtx. Changed all callers.
4772 (calculate_needs_all_insns, reload_as_needed):
4773 Don't clear after_call for a CLOBBER.
4774 Keep track of how many hard registers need to be copied from
4775 after_call, and don't clear after_call before we have seen
4776 that much copies, or we see a different instruction.
4778 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
4780 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
4781 after reload has completed.
4783 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
4785 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
4786 a macro name and the next token with a single blank if that whitespace
4787 is in a macro buffer and the next token is not '('.
4789 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
4791 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
4793 (skip_if_group): Ditto.
4794 (skip_to_end_of_comment): Ditto.
4796 (discard_comments): Ditto.
4797 (change_newlines): Ditto.
4799 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
4801 * c-lex.c (yylex): Fix unaligned access of wchar_t.
4803 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
4805 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
4806 (TARGET_OPTIONS): Add --help documentation.
4808 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4810 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
4812 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
4814 * fixinc/* Moved in from ../contrib directory in preparation
4815 for integrating it into the normal build process. In particular,
4816 fixinc/Makefile.in must be config-ed into the build directory
4817 as fixinc/Makefile. Proposed patches to ./Makefile.in and
4818 ./configure.in will be "in the mail" momentarily.
4820 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
4822 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
4823 accidently walk into the free list. Comment how that can happen.
4824 (invalidate): Fix indentation.
4826 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4827 Jeffrey A Law (law@cygnus.com)
4829 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
4830 reload. Never perform rescans of the insn chain after reload.
4831 (propagate_block): Do not delete insn or create new autoinc addressing
4834 * jump.c (jump_optimize): Unconditionally use the code that was
4835 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
4836 * reload1.c (reload): When reloading is finished, delete all
4837 REG_DEAD and REG_UNUSED notes.
4838 (emit_reload_insns): Delete all code that was conditional on
4839 PRESERVE_DEATH_INFO_REGNO_P.
4840 (no_longer_dead_regs): Delete variable.
4841 (reload_cse_delete_death_notes): Delete function.
4842 (reload_cse_no_longer_dead): Delete function.
4843 (reload_cse_regs_1): Delete all code to handle deletion of death
4845 (reload_cse_noop_set_p): Likewise.
4846 (reload_cse_simplify_set): Likewise.
4847 (reload_cse_simplify_operands): Likewise.
4848 (reload_cse_move2add): Likewise.
4849 * reorg.c (used_spill_regs): Delete declaration.
4850 (max_label_num_after_reload): Delete declaration.
4851 (find_dead_or_set_registers): Don't assume that spill regs are
4852 dead at a CODE_LABEL.
4853 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
4855 * sched.c (sched_analyze_insn): Likewise.
4856 (update_flow_info): Likewise.
4857 * haifa-sched.c (sched_analyze_insn): Likewise.
4858 (update_flow_info): Likewise.
4859 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
4860 * toplev.c (max_label_num_after_reload): Delete variable.
4861 (rest_of_compilation): Don't set max_label_num_after_reload.
4862 Call life_analysis after reload_cse_regs if optimizing.
4863 * config/gmicro/gmicro.h: Delete comment referring to
4864 PRESERVE_DEATH_INFO_REGNO_P.
4865 * config/i386/i386.h: Likewise.
4866 * config/m88k/m88k.h: Likewise.
4867 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
4868 * config/sh/sh.h: Likewise.
4870 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
4872 * loop.c (strength_reduce): Restore marking bct_p as
4874 * rs6000.c (optimization_options): Change #ifdef HAIFA to
4875 HAVE_decrement_and_branch_on_count.
4876 (small_data_operand): Remove TARGET_ELF condition for marking
4877 parameters ATTRIBUTE_UNUSED.
4879 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
4881 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
4882 (SELECT_SECTION): Resync with svr4.h.
4884 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
4886 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
4889 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
4891 * c-pragma.c (handle_pragma_token): Test for null tree before
4892 dereferencing TREE_CODE.
4894 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4896 * config/c4x/c4x.c: Convert to use GEN_INT.
4897 (c4x_parallel_process): Rework to handle new repeat loop structure.
4899 * config/c4x/c4x.md: Convert to use GEN_INT.
4900 (rptb_end): Convert to use GE test. Replace uses with clobbers.
4901 (decrement_and_branch_on_count): Likewise.
4903 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
4904 loop.c has the desired functionality.
4905 (rc_reg_operand): New prototype.
4907 * config/c4x/t-c4x: Can now build all front ends.
4909 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
4911 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
4913 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
4915 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
4916 * config/t-rtems: Do not install assert.h -- use newlib's.
4918 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4920 * combine.c (combine_instructions): When finished, call init_recog.
4921 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
4923 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
4925 * toplev.c: If flag_syntax_only, don't open or write assembler file.
4927 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4929 * cppalloc.c (memory_full): Mark function prototype with
4932 * demangle.h (collect_exit): Likewise.
4934 * fix-header.c (v_fatal, fatal): Likewise.
4936 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
4939 * gcov.c (print_usage): Likewise.
4941 * genattr.c (fatal, fancy_abort): Likewise.
4943 * genattrtab.c (fatal, fancy_abort): Likewise.
4945 * gencodes.c (fatal, fancy_abort): Likewise.
4947 * genconfig.c (fatal, fancy_abort): Likewise.
4949 * genemit.c (fatal, fancy_abort): Likewise.
4951 * genextract.c (fatal, fancy_abort): Likewise.
4953 * genflags.c (fatal, fancy_abort): Likewise.
4955 * genopinit.c (fatal, fancy_abort): Likewise.
4957 * genoutput.c (fatal, fancy_abort): Likewise.
4959 * genpeep.c (fatal, fancy_abort): Likewise.
4961 * genrecog.c (fatal, fancy_abort): Likewise.
4963 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
4964 __sjpopnthrow, __throw): Likewise.
4966 * objc/objc-act.c (objc_fatal): Likewise.
4968 * protoize.c (usage, aux_info_corrupted,
4969 declare_source_confusing): Likewise.
4971 * rtl.c (dump_and_abort): Likewise.
4973 * rtl.h (sets_cc0_p): Likewise.
4975 * toplev.c (float_signal, pipe_closed): Likewise.
4977 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
4979 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
4980 when generating the decision tree for the general case.
4982 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
4983 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
4985 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4987 * Makefile.in (sched.o): Depend on recog.h.
4989 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
4990 (unsigned) when comparing against one.
4991 (find_base_value): Likewise.
4992 (record_base_value): Cast variable `regno' to (unsigned) when
4993 comparing against one. Cast the result of REGNO() macro to
4994 (unsigned) when comparing against one.
4995 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
4997 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
4998 variable where an unsigned index is needed.
5000 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
5001 before comparing against one.
5003 * collect2.c: Add prototypes for functions `error', `fatal' and
5004 `fatal_perror'. Make these functions take variable arguments
5005 instead of faking it with a fixed number of args.
5006 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
5009 * combine.c (can_combine_p): Mark parameter `pred' with
5011 (find_split_point): Cast variable `src' to (unsigned
5012 HOST_WIDE_INT) when comparing against one.
5013 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
5014 (simplify_logical): Likewise.
5015 (force_to_mode): Cast result of INTVAL() macro to (unsigned
5016 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
5017 HOST_WIDE_INT) in shift.
5018 (simplify_and_const_int): Cast result of INTVAL() macro to
5019 `unsigned HOST_WIDE_INT' when comparing against one.
5020 (merge_outer_ops): Cast variable const0 to `unsigned
5021 HOST_WIDE_INT' when comparing against the result of
5022 GET_MODE_MASK() macro.
5023 (simplify_comparison): Likewise for variable `c0'. Cast variable
5024 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
5025 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
5026 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
5027 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
5028 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
5029 comparing against one.
5030 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
5032 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
5033 macro to `unsigned HOST_WIDE_INT' when comparing against one.
5034 (output_block_move): Cast `sizeof' expression to (int) when
5035 comparing against one.
5036 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
5038 (save_restore_insns): Cast `base_offset' to `long' to match format
5039 specifier in fprintf.
5041 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
5042 to `enum machine_mode'.
5044 * flow.c (life_analysis_1): Remove unused variable `insn'.
5046 * gcc.c (translate_options): Move variables `j' and `k' into the
5047 scope in which they are used. Change their types to `size_t'.
5048 (set_spec): Cast the argument of ctype macro to `unsigned char'.
5049 (read_specs): Likewise.
5050 (process_command): Cast `sizeof' to (int) when comparing against one.
5051 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
5052 (handle_braces): Cast both sides of `==' expression to `long' to
5053 ensure sign matching.
5054 (main): Cast variable `i' to `int' when comparing against one.
5056 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
5057 int to size_t. Cast variable `i' to size_t when comparing against
5060 * genattrtab.c (convert_set_attr_alternative): Remove unused
5061 parameter `insn_code'. All callers changed.
5062 (convert_set_attr): Likewise.
5064 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
5065 size_t when comparing against one. Likewise for variable `len'.
5067 * global.c (global_alloc): Cast variable `max_regno' to size_t
5068 when comparing against one. Likewise for variable `max_allocno'.
5070 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
5072 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
5073 `set' with ATTRIBUTE_UNUSED.
5074 (find_free_reg): Cast `sizeof' expression to (int) when comparing
5077 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
5078 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
5079 (get_condition): Cast variable `const_val' to `unsigned
5080 HOST_WIDE_INT' when comparing against one. Cast unsigned
5081 expression to HOST_WIDE_INT when comparing against one.
5082 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
5083 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
5084 `unsigned' when comparing against one.
5086 * protoize.c (is_id_char): Change type of parameter `ch' to
5088 (munge_compile_params): Cast argument of ctype macro to (const
5090 (process_aux_info_file): Cast variable `aux_info_size' to int when
5091 comparing against one.
5092 (forward_to_next_token_char): Cast argument of ctype macro to
5093 `const unsigned char'.
5094 (edit_formals_lists): Likewise.
5095 (find_rightmost_formals_list): Likewise.
5096 (add_local_decl): Likewise.
5097 (add_global_decls): Likewise.
5098 (edit_fn_definition): Likewise.
5099 (do_cleaning): Likewise.
5100 (scan_for_missed_items): Likewise.
5101 (edit_file): Cast variable `orig_size' to (int) when comparing
5103 (main): Cast argument of ctype macro to `const unsigned char'.
5105 * recog.c (const_int_operand): Mark parameter `mode' with
5108 * regclass.c (record_reg_classes): Change type of variable `c' to
5109 `unsigned char'. Cast `char' array index to `unsigned char'.
5111 * reload.c (push_secondary_reload): Cast argument to
5112 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
5114 * reload1.c (calculate_needs): Cast `char' array index to
5116 (set_label_offsets): Change type of variable `i' to unsigned int.
5117 Cast result of XVECLEN() macro to unsigned when comparing against
5119 (mark_not_eliminable): Change type of variable `i' to unsigned.
5120 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
5121 when comparing against one.
5122 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
5123 comparing against one.
5124 (choose_reload_regs): Hide unused label `fail'.
5125 (reload_cse_simplify_operands): Cast `char' array index to
5127 (reload_combine_note_store): Mark parameter `set' with
5128 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
5130 (reload_cse_move2add): Remove unused variable `src2'.
5132 * sched.c: Include recog.h.
5133 (sched_note_set): Remove unused parameter `b'. All callers
5135 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
5136 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
5137 when comparing against one.
5139 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
5140 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
5141 comparing against one.
5143 * unroll.c (precondition_loop_p): Remove unused parameter
5144 `loop_end'. All callers changed.
5146 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5148 * reload1.c (maybe_fix_stack_asms): New static function.
5151 * reload.h (compute_use_by_pseudos): Declare.
5153 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
5154 (something_needs_reloads): Delete variable.
5155 (finish_spills): New function.
5156 (compute_use_by_pseudos): New function.
5158 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
5159 Use the reload_insn_chain instead of walking the rtl directly.
5161 (reload): Allocate and free spilled_pseudos.
5162 Ensure that all calls of spill_hard_reg are followed by a call to
5164 Use the insns_need_reload list instead of something_needs_reloads
5165 to find out if reload_as_needed must be called.
5166 Clear unused_insn_chains at the end.
5168 (calculate_needs_all_insns): Lose FIRST parameter. All callers
5170 Delete code to keep track of current basic block.
5171 Walk reload_insn_chain instead of the rtl structure. Build the
5172 insns_need_reload chain.
5173 Remember which insns need reloading/elimination by setting the
5174 appropriate fields in struct insn_chain, not by putting modes on the
5177 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
5178 arg INSN. All callers changed.
5179 Delete declaration of struct needs.
5180 Don't set something_needs_reloads.
5181 Record insn needs in the CHAIN argument.
5183 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
5185 (reload_as_needed): Lose FIRST arg. All callers changed.
5186 Walk the reload_insn_chain instead of the rtx structure.
5187 Delete code to keep track of current basic block.
5188 Rename one of the NEXT variables to OLD_NEXT.
5190 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
5192 (choose_reload_regs): Likewise.
5194 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
5197 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
5198 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
5199 (hard_regs_live, hard_regs_need_restore): Delete variables.
5200 (n_regs_saved): Now static.
5201 (referenced_regs, this_insn_sets): New variables.
5203 (setup_save_areas): Restructure the code a bit.
5205 (restore_referenced_regs): Delete function.
5206 (mark_referenced_regs): New function, similar to the old
5207 restore_referenced_regs, but mark registers in referenced_regs.
5209 (clear_reg_live): Delete function.
5210 (mark_set_regs): Renamed from set_reg_live. All callers changed.
5211 Only mark registers in this_insn_sets.
5213 (save_call_clobbered_regs): Rework this function to walk the
5214 reload_insn_chain instead of using the list of instructions directly.
5215 Delete code to keep track of register lives, compute live regs on the
5216 fly from information in the chain.
5217 Instead of calling restore_referenced_regs, use mark_referenced_regs,
5218 then walk the set it computes and call insert_restore as appropriate.
5220 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
5222 Restructure the code a bit. Test hard_regs_saved instead of
5223 hard_regs_need_restore.
5224 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
5225 args. All callers changed.
5226 Restructure the code a bit. Use TO_SAVE to determine which regs to
5227 save instead of more complicated test.
5228 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
5230 Create a new insn_chain structure for the new insn and place it
5233 * rtl.texi: Update documentation to reflect that reload no longer
5234 puts modes on the insns.
5236 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
5238 * function.c (purge_addressof_1): Force the first argument of a
5239 CALL insn to memory.
5241 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
5243 * rtl.h: Delete duplicate prototypes. Add some missing
5245 * rtlanal.c: (for_each_rtx): Formatting tweak.
5247 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
5249 * real.c (emdnorm and etoasc): Disable round to even for c4x target
5250 to be compatible with TI compiler.
5252 * Makefile.in (USER_H): Add va-c4x.h to definition.
5254 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
5256 * function.c (purge_addressof_1): Fix typo in inequality: do
5257 bitfield optimization for equal mode sizes.
5258 * expmed.c (store_bit_field): Don't take subregs of subregs in
5259 the movstrict case. Tidy a potential problem in the multi-word case.
5260 (extract_bit_field): Likewise.
5262 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5264 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
5266 Compute max_uid_for_flow by calling get_max_uid after the scan.
5267 (find_basic_blocks_1): Don't emit NOPs here.
5269 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
5271 * alias.c (base_alias_check): Accept new args for the modes of the
5272 two references. Use them to determine if an AND can overlap. Update
5274 (memrefs_conflict_p): Assume sizes are aligned, and uses them
5275 to determine if an AND can overlap.
5277 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
5279 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
5280 check. Add comment to document problems with TARGET_SUN_FPA version
5282 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
5284 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5286 * Makefile.in (gencheck.o): Depend on gansidecl.h.
5288 * c-common.c (print_char_table): Add missing initializers.
5289 (scan_char_table): Likewise.
5290 (time_char_table): Likewise.
5292 * c-decl.c (c_decode_option): Mark parameter `argc' with
5294 (declare_parm_level): Mark parameter `definition_flag' with
5297 * c-lex.c (readescape): Use `(unsigned)1' in shift.
5298 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
5301 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
5303 (emit_call_1): Mark parameters `fndecl' and `funtype' with
5305 (expand_call): Cast result of MIN() to (unsigned int) when
5306 comparing against an unsigned value.
5308 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
5310 (make_definition): Remove unused parameter `op'. All callers
5312 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
5313 comparing against the result of pointer arithmetic.
5315 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
5316 when comparing against one.
5318 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
5319 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
5321 (output_die): Move variable `i' into the scope in which it is
5322 used. Change its type to `unsigned'.
5323 (output_die): Cast the result of `strlen' to (int) when passing it
5324 to ASM_OUTPUT_ASCII().
5325 (output_pubnames): Likewise.
5326 (output_line_info): Likewise.
5328 * emit-rtl.c (global_rtl): Add missing initializers.
5330 * explow.c (promote_mode): Mark parameter `for_call' with
5333 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
5334 `unsigned HOST_WIDE_INT' when comparing against one.
5335 (synth_mult): Change type of variable `cost' to int.
5336 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
5338 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
5339 when comparing against one.
5340 (get_inner_reference): Change variable `alignment' to unsigned.
5341 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
5342 int) when comparing against one.
5343 (expand_builtin_setjmp): Change type of variable `i' to size_t.
5345 * fold-const.c (div_and_round_double): Cast BASE to
5346 (HOST_WIDE_INT) when comparing against one.
5348 * gencheck.c: Include gansidecl.h.
5349 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
5351 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
5352 `tcode' with ATTRIBUTE_UNUSED.
5354 * real.c (edivm): Cast constant value to (unsigned long) in
5355 expression compared against an unsigned value.
5357 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
5358 comparing against one.
5359 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
5360 when comparing against one.
5362 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
5363 (unsigned int) when comparing against one. Likewise for
5365 (smallest_mode_for_size): Likewise.
5366 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
5367 (restore_storage_status): Likewise.
5369 * toplev.c (debug_args): Add missing initializer.
5370 (f_options): Spelling correction. Add missing initializers.
5371 (documented_lang_options): Likewise.
5372 (debug_end_source_file): Mark parameter `lineno' with
5375 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
5376 `decl' and `type' with ATTRIBUTE_UNUSED.
5378 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
5379 when comparing against one.
5380 (assemble_variable): Mark parameter `top_level' with
5382 (assemble_external_libcall): Mark parameter `fun' with
5384 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
5387 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
5389 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
5390 Replace use of r5 with use of r19.
5392 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
5394 * config/v850/v850.c (compute_register_save_size): Allow for the
5395 fact that helper functions save all registers, not just those used
5398 Replace constant 31 with macro LINK_POINTER_REGNUM.
5400 * config/v850/v850.md: Use 'indirect_operand' rather than
5401 'memory_operand' for bit test/set/clear patterns.
5403 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
5405 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
5406 * varasm.c (assemble_start_function et al): Don't call
5407 ASM_GLOBALIZE_LABEL for weak symbols.
5409 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
5411 * cse.c (equiv_constant): Check for NULL return from
5412 gen_lowpart_if_possible().
5414 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
5416 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
5418 * collect2.c (main): Pass -EL/-EB through to the compiler.
5420 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
5422 * expr.c (push_block): Handle targets where the stack grows
5423 to higher addresses, but args grow to lower addresses and
5424 ACCUMULATE_OUTGOING_ARGS is not defined.
5426 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
5428 * config/v850/v850.c (print_operand): Extend meaning
5429 of 'c' operands to support .vtinherit.
5431 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5433 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
5434 Added ATTRIBUTE_UNUSED to unused function arguments.
5435 (rc_reg_operand): New predicate.
5436 (c4x_rptb_insert): New function.
5437 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
5438 (c4x_optimization_options): New function.
5440 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
5441 (decrement_and_branch_on_count): New pattern.
5442 (rptb_top): Modified pattern to work with BCT optimization.
5444 * config/c4x/c4x.h (RC_REG): New register class.
5445 (rc_reg_operand): Define prototype.
5446 (IS_RC_REG): New macro.
5447 (IS_RC_OR_PSEUDO_REG): New macro.
5448 (IS_RC_OR_PSEUDO_REGNO): New macro.
5449 (OPTIMIZATION_OPTIONS): Define.
5451 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
5453 * collect2.c (extract_init_priority): No priority is 65535.
5455 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5457 * Makefile.in (build_tooldir): new variable, same as old
5458 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
5459 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
5460 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
5462 * configure.in (gxx_include_dir): set default based on unlibsubdir
5463 * Makefile.in (tooldir): ditto
5464 (cccp.o, cpplib.o): use unlibsubdir implicitly through
5465 gxx_include_dir, includedir and tooldir
5466 (protoize.o, unprotoize.o): ditto
5468 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
5470 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
5472 * config/arm/thumb.c (thumb_override_options): Add warning about
5473 PIC code not being supported just yet.
5475 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
5477 * flow.c: Update comment.
5478 (notice_stack_pointer_modification): New static function.
5479 (record_volatile_insns): Use it.
5480 (mark_regs_live_at_end): Mark the stack pointer as alive
5481 at the end of the function if current_function_sp_is_unchanging
5483 (life_analysis_1): Set current_function_sp_is_unchanging.
5484 * function.c: Define it.
5485 (init_function_start): Initialize it.
5486 * output.h: Declare it.
5487 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
5488 the stack pointer as alive at the end of the function if
5489 current_function_sp_is_unchanging is set.
5490 * i386.c (ix86_epilogue): Optimize the restoring
5491 of the stack pointer.
5493 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
5495 * version.c: Bump for snapshot.
5497 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
5499 * c-pragma.c (handle_pragma_token): If passed a token instead
5500 of a tree, use that as the pack value.
5502 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
5504 * flow.c (find_basic_blocks_1): Fix prototype.
5506 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
5508 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
5509 (struct tree_decl): New fields no_check_memory_usage.
5510 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
5511 (init_attributes): Register it as a new attribute.
5512 (decl_attributes): Set flags on functions given that attribute.
5513 * c-decl.c (duplicate_decls): Merge new attribute.
5514 * expr.h (current_function_check_memory_usage): Declare new var.
5515 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
5516 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
5517 current_function_check_memory_usage.
5518 * function.h: Add field to struct function.
5519 * function.c (current_function_check_memory_usage): Define it.
5520 (push_function_context_to, pop_function_context_from): Save and
5522 (expand_function_start): Set it, based on global flag and function
5525 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
5526 check non-automatic variables, to permit detection of writes to
5527 read-only locations in embedded systems without memory management.
5528 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
5529 when emitting chkr_set_right_libfunc call, even if the argument is
5530 BLKmode or variable-sized; don't abort.
5532 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
5533 symbols in Pmode, not VOIDmode.
5535 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5537 * cppexp.c: When forcing unsigned comparisons, cast both sides
5540 * cpphash.h: Move static declaration of hashtab[]...
5541 * cpphash.c: ...here.
5543 * cpplib.c: Cast difference of two pointers to size_t before
5544 comparing it to size_t. Cast signed to unsigned
5545 before comparing to size_t. (FIXME: struct argdata should use
5546 unsigned buffer sizes.)
5547 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
5548 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
5549 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
5550 size_t before comparison.
5552 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
5554 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
5555 (find_basic_blocks_1): Similarly.
5556 * output.h (find_basic_blocks): Fix prototype.
5557 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
5558 find_basic_blocks anymore.
5560 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
5562 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
5563 (sbitmap_free, sbitmap_vector_free): New macros.
5564 * output.h (rtl_dump_file): Declare.
5566 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
5568 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
5570 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5572 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
5574 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
5575 (divide): Remove unused variable `tmp'.
5576 (si_to_float): Cast numeric constant to (SItype) before comparing
5579 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
5581 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
5582 * gcc.c (add_preprocessor_option): Correct typo when allocating
5583 memory, sizeof() argument had one too many `*'.
5584 (add_assembler_option): Likewise.
5585 (add_linker_option): Likewise.
5586 * gcov.c (output_data): Likewise.
5587 * local-alloc.c (memref_used_between_p): Likewise.
5588 (update_equiv_regs): Likewise.
5589 * loop.c (strength_reduce): Likewise.
5590 * reg-stack.c (record_asm_reg_life): Likewise.
5591 (subst_asm_stack_reg): Likewise.
5592 * reorg.c (dbr_schedule): Likewise.
5594 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5596 * flow.c (life_analysis_1): Break out some functions.
5597 (find_basic_blocks_1): Likewise. Also move some variables out and
5599 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
5600 new static var nonlocal_label_list with it.
5601 (active_eh_region, nested_eh_region, label_value_list,
5602 nonlocal_label_list): New static variables.
5603 (make_edges, delete_unreachable_blocks, delete_block): New static
5604 functions, broken out of find_basic_blocks_1.
5605 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
5606 noop_move_p): New static functions, broken out of life_analysis_1.
5608 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
5610 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
5611 Take extra care for op0 now possibly being a subreg.
5612 (extract_bit_field): Likewise.
5613 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
5614 the reg to memory if there is no equal sized integral mode.
5615 * stor-layout.c (int_mode_for_mode): New function.
5616 * machmode.h: Prototype it.
5618 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
5620 * global.c (build_insn_chain): Verify no real insns exist past the
5621 end of the last basic block, then exit the loop.
5623 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
5625 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
5627 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
5629 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
5631 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
5633 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
5635 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
5637 * flow.c (find_basic_blocks): Correctly determine when a call
5638 is within an exception region.
5640 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
5642 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
5644 * cpplib.h: Protect from multiple inclusions.
5645 * cpplib.c: Fix minor formatting problems.
5647 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
5649 * jump.c (jump_optimize): Revert accidental patch.
5651 * Makefile.in (cpplib.o): Use unlibsubdir.
5653 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
5655 * loop.c (get_condition): Allow combine when either compare is
5658 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
5660 * version.c: Bump for snapshot.
5662 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
5664 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
5665 (init_lex): Initialize ridpointers[RID_BYREF].
5666 * c-lex.h (enum rid): Add RID_BYREF.
5667 * c-parse.gperf: Add RID_BYREF as a type qualifier.
5668 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
5669 (encode_type_qualifiers): Similarly
5670 * c-gperf.h: Rebuilt.
5672 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
5674 * c-common.c (type_for_mode): Only return TItype nodes when
5675 HOST_BITS_PER_WIDE_INT is >= 64 bits.
5676 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
5677 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
5678 (init_decl_processing): Only create TItype nodes when
5679 HOST_BITS_PER_WIDE_INT is >= 64 bits.
5680 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
5681 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
5683 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5685 * stmt.c (n_occurrences): New static function.
5686 (expand_asm_operands): Verify that all constrains match in the
5687 number of alternatives.
5688 Verify that '+' or '=' are at the beginning of an output constraint.
5689 Don't allow '&' for input operands.
5690 Verify that '%' isn't written for the last operand.
5691 * reload.c (find_reloads): Abort if an asm is found with invalid
5692 constraints; all possible problems ought to be checked for earlier.
5694 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5696 * flags.h (flag_branch_on_count_reg): Always declare
5697 * toplev.c (flag_branch_on_count_reg): Likewise.
5698 * toplev.c: Fix typos.
5700 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
5703 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
5705 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
5707 (find_basic_blocks_1): Add a nop to the end of a basic block when
5708 a trailing call insn does not have abnormal control flow.
5709 * gcse.c (pre_transpout): New variable.
5710 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
5711 (compute_pre_transpout): Calculate it.
5712 (compute_pre_ppinout): Use it to eliminate impossible placements
5713 due to abnormal control flow through calls.
5714 (compute_pre_data): Call compute_pre_transpout.
5716 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5718 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
5720 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
5722 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
5723 and matching define_insns): Tack on a `use' of the table label, so
5724 flow analysis will recognize a tablejump.
5726 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
5728 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
5729 always end basic blocks for abnormal edge reasons.
5731 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
5733 * config/i386/i386.h: Remove definition of
5734 HANDLE_PRAGMA_PACK_PUSH_POP.
5736 * config/i386/go32.h: Add definition of
5737 HANDLE_PRAGMA_PACK_PUSH_POP.
5739 * config/i386/win32.h: Add definition of
5740 HANDLE_PRAGMA_PACK_PUSH_POP.
5742 * config/i386/cygwin32.h: Add definition of
5743 HANDLE_PRAGMA_PACK_PUSH_POP.
5745 * c-pragma.c (insert_pack_attributes): Do not insert
5746 attributes unless #pragma pack(push,<n>) is in effect.
5748 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
5750 * expr.c (emit_group_store): Handle a PARALLEL destination.
5752 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
5754 * gcse.c (pre_insert_insn): When a call ends a bb, insert
5755 the new insns before the argument regs are loaded.
5757 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5759 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
5760 (c-parse.gperf): Update comments describing invocation flags.
5761 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
5763 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
5765 * reload1.c (reload): Call free before clobbering the memory
5766 locations or constants pointers.
5768 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5770 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
5771 for efficiency by checking whether we need to modify the current
5772 stack permission at all.
5773 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
5774 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
5775 __enable_execute_stack libcall here too if
5776 TRANSFER_FROM_TRAMPOLINE is defined.
5777 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
5780 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
5782 * Makefile.in (DRIVER_DEFINES): Remove last change.
5784 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5786 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
5787 insns we're going to copy.
5788 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
5790 * loop.c (count_one_set): Add prototype.
5792 * caller-save.c (restore_referenced_regs): Lose mode argument.
5793 (insert_save): Lose mode argument.
5794 (insert_restore): Lose mode argument.
5795 (insert_one_insn): Lose mode argument.
5796 (save_call_clobbered_regs): Lose mode argument.
5797 (setup_save_areas): Take no argument and return void. All callers
5799 Don't verify validity of memory addresses.
5800 * reload.h (setup_save_ares): Adjust prototype.
5801 (save_call_clobbered_regs): Likewise.
5802 * reload1.c (delete_caller_save_insns): New function.
5803 (caller_save_spill_class): Delete variable.
5804 (caller_save_group_size): Delete variable.
5805 (reload): Call setup_save_areas and save_call_clobbered_regs
5806 in the main loop, before calling calculate_needs_all_insns.
5807 Don't call save_call_clobbered_regs after the loop.
5808 Call delete_caller_save_insns at the end of an iteration if
5810 Delete code to manage caller_save_spill_class.
5811 Emit the final note before setting reload_first_uid.
5812 Simplify test that determines whether reload_as_needed gets run.
5813 (calculate_needs): Delete code to manage caller_save_spill_class.
5815 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
5817 * collect2.c (main): Initialize ld_file_name.
5819 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
5821 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
5822 check for flag_function_sections.
5824 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5826 * cse.c (insert_regs): Fix bug in Sep 24 change.
5828 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5830 * flags.h (flag_dump_unnumbered): Declare.
5831 * toplev.c (flag_dump_unnumbered): Don't declare.
5832 * print-rtl.c (flags.h): Include.
5833 (print_rtl_single): Add return value.
5834 * rtl.h (print_rtl_single): Update declaration.
5835 * flow.c (flag_dump_unnumbered): Don't declare.
5836 (print_rtl_with_bb): Use return value of print_rtl_single.
5838 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5840 * loop.c (count_one_set): New static function, broken out of
5842 (count_loop_regs_set): Call it.
5843 * global.c (mark_reg_store): Handle clobbers here by not calling
5845 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
5846 is in fact a clobber.
5847 * integrate.c (process_reg_param): New function, broken out of
5848 expand_inline_function.
5849 (expand_inline_function): Call it.
5852 * i386.md (addsidi3_1): Delete unused variable temp.
5853 (addsidi3_2): Likewise.
5854 (clstrstrsi): Delete unused variable addr1.
5856 * rtl.h: Don't declare any functions also declared in recog.h.
5858 * Makefile.in (stupid.o): Update dependencies.
5859 (global.o): Likewise.
5861 * global.c: Include reload.h
5862 (reg_becomes_live): New function.
5863 (reg_dies): New function.
5864 (build_insn_chain): New function.
5865 (global_alloc): Call build_insn_chain before calling reload.
5867 * reload.h (struct needs): New structure definition.
5868 (struct insn_chain): Likewise.
5869 (reload_insn_chain): Declare variable.
5870 (new_insn_chain): Declare function.
5873 * reload1.c (reload_startobj): New variable.
5874 (reload_insn_chain): New variable.
5875 (unused_insn_chains): New variable.
5876 (new_insn_chain): New function.
5877 (init_reload): Initialize reload_startobj, not reload_firstobj.
5878 (reload): Initialize reload_firstobj.
5879 Before returning, free everything on the reload_obstack.
5881 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
5882 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
5883 current_chain): New variables.
5884 (reg_where_born): Delete variable.
5885 (REG_WHERE_BORN): New macro.
5886 (find_clobbered_regs): New function.
5887 (stupid_life_analysis): Don't allocate/free reg_where_born.
5888 Allocate and free reg_where_born_exact, reg_where_born_clobber,
5889 reg_where_dead_chain.
5890 Use REG_WHERE_BORN instead of reg_where_born.
5891 While processing the insns, build the reload_insn_chain with
5892 information about register lifetimes.
5893 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
5894 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
5896 Compute and information about birth and death of pseudo registers in
5897 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
5898 Delete code to set elements of reg_where_born.
5900 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5902 * tree.def (GOTO_EXPR): Modified documentation.
5903 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
5906 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
5908 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
5909 loop_final_value, loop_comparison_code): No longer static.
5910 (unroll_loop): Delete loop_start_value update.
5911 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
5912 loop_final_value, loop_comparison_code): Extern.
5913 (loop_start_value): Delete extern.
5914 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
5915 loop_comparison_value, loop_comparison_code): Delete.
5916 (loop_optimize): Remove initialization for deleted variables.
5917 (strength_reduce): Delete analyze_loop_iterations call. Only call
5918 insert_bct if flag_branch_count_on_reg set.
5919 (analyze_loop_iterations): Delete.
5920 (insert_bct): Remove iteration count calculation. Move checks for
5921 viable BCT optimization to here. Obtain iteration count from
5922 loop_iterations and correct for unrolling. Check for enough
5923 iteration to be beneficial. Comment out runtime iteration count
5925 (insert_bct): Print iteration count in dump file. Remove
5926 loop_var_mode and use word_mode directly.
5928 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
5929 * rs6000.c (rs6000_override_options): Use it.
5930 (optimization_options): Enable use of flag_branch_on_count_reg.
5931 * rs6000.md (define_function_unit): Describe 604e.
5933 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
5935 * loop.c (move_movables): Corrected threshold calculation for
5936 moved_once registers.
5938 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5940 * loop.c (combine_givs_p): Fix test for identical givs.
5942 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
5944 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
5945 call abort if the function is already defined.
5947 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
5949 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
5950 truncation is not a no-op.
5952 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
5954 * version.c: Bump for snapshot.
5956 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
5958 * version.c: Bump for snapshot.
5960 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
5962 * expmed.c (expand_divmod): Don't widen for computing remainder
5963 if we seem to have a divmod pattern for needed mode.
5965 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5967 * cpplib.c (macroexpand): Correct off-by-one error in handling
5970 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
5972 * combine.c (expand_field_assignment): Don't do bitwise operations
5973 on MODE_FLOAT; pun to MODE_INT if possible.
5975 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
5976 scott snyder <snyder@d0sgif.fnal.gov>
5978 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
5979 linker. Recognize mangled names in quotes.
5981 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5983 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
5984 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
5985 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
5986 (lshrsi3_extend, lshrsi3_extend2): Ditto.
5988 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5990 * function.c (purge_addressof_1): If trying to take a sub-word
5991 integral piece of a floating point mode, put it on the stack.
5993 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
5995 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
5997 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5999 * PROJECTS: Remove template friends.
6001 * collect2.c (sort_ids): Remove unused variable.
6003 * tm.texi (MATH_LIBRARY): Document.
6004 (NEED_MATH_LIBRARY): Remove.
6006 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
6007 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
6009 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
6011 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
6012 last_end to 0x7fffffff.
6014 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6016 * function.c (purge_addressof_1): Do not perform endianness
6017 corrections on bitpos, who we call will do it for us.
6019 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
6021 * h8300.c (WORD_REG_USED): Fix typo.
6022 (initial_offset): Use WORD_REG_USED.
6024 * h8300.c (handle_pragma): Fix typo.
6026 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
6028 * caller-save.c (insert_save_restore): Break this function up
6029 into new functions insert_restore, insert_save and insert_one_insn.
6030 All callers changed.
6031 (insert_restore): New function, mostly broken out of
6032 insert_save_restore.
6033 (insert_save): Likewise.
6034 (insert_one_insn): Likewise.
6035 (restore_referenced_regs): New argument BLOCK. All callers changed.
6036 (save_call_clobbered_regs): Don't keep track of basic block boundaries
6037 in this function, do it in insert_one_insn instead.
6039 * reload1.c (reload): Break out some more pieces into separate
6041 (dump_needs): New function, broken out of reload.
6042 (set_initial_elim_offsets): Likewise.
6043 (init_elim_table): Likewise.
6044 (update_eliminables): Likewise.
6046 * global.c (global_alloc): Delete code to manage the scratch_list.
6047 * local-alloc.c (qty_scratch_rtx): Delete.
6048 (scratch_block): Delete.
6049 (scratch_list): Delete.
6050 (scratch_list_length): Delete.
6051 (scratch_index): Delete.
6052 (alloc_qty_for_scratch): Delete.
6053 (local-alloc): Update initialization of max_qty.
6054 Delete code to manage the scratch list.
6055 Delete code to allocate/initialize qty_scratch_rtx.
6056 (block_alloc): Don't allocate quantities for scratches.
6057 Delete code to manage the scratch list.
6058 * regs.h (scratch_list): Delete declaration.
6059 (scratch_block): Delete declaration.
6060 (scratch_list_length): Delete declaration.
6061 * reload1.c (reload): Delete code to manage the scratch list.
6062 (spill_hard_reg): Likewise.
6063 (mark_scratch_live): Delete.
6065 * recog.c (alter_subreg): Delete declaration.
6067 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
6069 * Makefile.in (cccp.o): Fix typo in last patch.
6071 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6073 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
6074 * config/sh/lib1funcs.asm (___set_fpscr): Add.
6076 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
6078 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
6079 NULL_RTX as an argument.
6081 * Makefile.in (unlibsubdir): Define.
6082 (DRIVER_DEFINES): Use unlibsubdir.
6083 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
6084 (stmp-fixinc): Similarly.
6086 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
6088 * regmove.c (regmove_optimize): Add variable old_max_uid.
6089 At the end of the function, update basic_block_end.
6091 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6093 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
6094 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
6097 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
6099 * config/arm/arm.c: Improve interworking support.
6101 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6103 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
6104 copied from reload_out[r] .
6106 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
6108 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
6109 with more than three size ranges.
6111 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
6113 * rtl.c (mode_name): Add a null string at the end of the array.
6114 (mode_wider_mode): Change type to unsigned char.
6115 (mode_mask_array): New variable.
6116 (init_rtl): Update for mode_wider_mode type change.
6118 * rtl.h (mode_wider_mode): Change type to unsigned char.
6119 (mode_mask_array): Declare.
6120 (GET_MODE_MASK): Use mode_mask_array.
6122 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
6124 * calls.c (expand_call) : Encapsulate code into
6125 copy_blkmode_from_reg.
6126 * expr.c (copy_blkmode_from_reg): New function.
6127 * expr.h (copy_blkmode_from_reg): New function.
6128 * integrate.c (function_cannot_inline_p): We can inline
6130 (expand_inline_function): Use copy_blkmode_from_reg
6131 if needed. Avoid creating BLKmode REGs.
6132 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
6135 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
6137 * config/v850/v850.c: Add function prototypes.
6138 Add support for v850 special data areas.
6140 * config/v850/v850.h: Add support for v850 special data areas.
6142 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
6143 HANDLE_PRAGMA_PACK_PUSH_POP.
6144 (push_alignment): New function: Cache an alignment requested
6145 by a #pragma pack(push,<n>).
6146 (pop_alignment): New function: Pop an alignment from the
6148 (insert_pack_attributes): New function: Generate __packed__
6149 and __aligned__ attributes for new decls whilst a #pragma pack
6151 (add_weak): New function: Cache a #pragma weak directive.
6152 (handle_pragma_token): Document calling conventions. Add
6153 support for #pragma pack(push,<n>) and #pragma pack (pop).
6155 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
6156 are defined enable HANDLE_PRAGMA_PACK.
6157 Move 'struct weak_syms' here (from varasm.c).
6158 Add pragma states for push and pop pragmas.
6160 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
6163 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
6164 HANDLE_GENERIC_PRAGMAS.
6166 * varasm.c: Move definition of 'struct weak_syms' into
6168 (handle_pragma_weak): Deleted.
6170 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
6172 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
6174 * c-decl.c (start_function): Add invocation of
6175 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
6177 * tm.texi: Remove description of non-existant macro
6178 SET_DEFAULT_SECTION_NAME.
6180 (HANDLE_SYSV_PRAGMA): Document.
6181 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
6183 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
6185 * config.sub: Recognize i[34567]86-pc-udk as new target.
6186 * configure.in: Likewise.
6187 * config/i386/t-udk: New file.
6188 * config/i386/udk.h: New file.
6190 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
6192 * reorg.c (check_annul_list_true_false): Remove unused variables.
6193 (steal_delay_list_from_target): Add missing "used_annul" variable.
6194 (try_merge_delay_insns): Close out half formed comment.
6196 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
6198 * cpplib.c (macroexpand): If arg->raw_before or
6199 arg->raw_after, remove any no-reexpansion escape at the
6200 beginning of the pasted token. Correct handling of whitespace
6201 markers and no-reexpand markers at the end if arg->raw_after.
6203 * toplev.c (documented_lang_options): Recognize -include,
6204 -imacros, -iwithprefix, -iwithprefixbefore.
6205 * cpplib.c (cpp_start_read): Process -imacros and -include
6206 switches at the same time and in command-line order, after
6207 initializing the dependency-output code. Emit properly nested
6208 #line directives for them. Emit a #line for the main file
6209 before processing these switches, and don't do it again
6212 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
6214 * function.c (purge_addressof_1): Use bitfield manipulation
6215 routines to handle mem mode < reg mode.
6217 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
6219 * reorg.c (try_merge_delay_insns): Account for resources referenced
6220 in each instruction in INSN's delay list before trying to eliminate
6221 useless instructions. Similarly when looking at a trial insn's delay
6224 * reorg.c (check_annul_list_true_false): New function.
6225 (steal_delay_list_from_{target,fallthrough}): Call it and also
6226 refine tests for when we may annul if already filled a slot.
6227 (fill_slots_from_thread): Likewise.
6228 (delete_from_delay_slot): Return newly-created thread.
6229 (try_merge_delay_isns): Use its new return value.
6231 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
6233 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
6234 used to compute a giv or as some other non-counting use.
6236 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
6238 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
6239 * local-alloc.c (find_free_reg): Use it.
6240 * global.c (find_reg): Likewise.
6241 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
6243 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
6244 * caller-save.c (init_caller_save): Use it.
6245 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
6247 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
6249 * configure.in: Add --enable-cpplib option which uses cpplib
6250 for cpp, but doesn't link cpplib into cc1. Make help text
6251 capitalization consistent.
6252 * configure: Rebuilt.
6254 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
6256 * function.c (gen_mem_addressof): If the address REG is
6257 REG_USERVAR_P make the new REG be so also.
6258 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
6259 in an attempt to clarify slightly.
6261 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
6263 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
6264 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
6266 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
6268 * toplev.c: Fix last patch.
6270 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
6272 * loop.c (get_condition): Fix typo in May 9 change.
6274 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
6276 * invoke.texi (-fexceptions): Merge 2 different descriptions.
6278 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6280 * toplev.c (documented_lang_options): Spelling corrections.
6282 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
6284 * configure.in: new flags --with-ld and --with-as, equivalent
6285 to setting LD and AS environment variables. Test whether
6286 specified arguments are GNU commands, and report them with
6287 checking messages. Use the specified AS for configure
6290 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
6292 * gcc.c (find_a_file): when looking for `as' and `ld', return
6293 the DEFAULT program if it exists
6294 * collect2.c (main): use DEFAULT_LINKER if it exists
6296 * gcc.c (find_a_file): the test for existence of a full
6297 pathname was reversed
6299 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
6301 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
6302 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
6304 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
6306 * tree.h (TYPE_BINFO): Document.
6308 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
6310 * i386-coff.h (dbxcoff.h): Added.
6312 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
6314 * toplev.c: fix bad patch around flag_data_sections.
6316 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
6318 * reload1.c (reload): Use reload_address_index_reg_class and
6319 reload_address_base_reg_class when setting
6320 caller_save_spill_class. (Patch generated by Jim Wilson:
6323 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
6325 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
6326 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
6327 * expr.c (store_field): Add alias_set parameter. Set the
6328 MEM_ALIAS_SET accordingly, if the target is a MEM.
6329 (expand_assignment): Use it.
6330 (store_constructor_field): Pass 0.
6331 (expand_expr): Likewise.
6333 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
6335 * flags.h: Add flag_data_sections.
6336 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
6337 (compile_file): Error if flag_data_sections not supported.
6338 * varasm.c (assemble_variable): Handle flag_data_sections.
6339 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
6340 * config/mips/elf.h: Likewise.
6341 * config/mips/elf64.h: Likewise.
6342 * invoke.texi: Describe -fdata-sections.
6344 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
6346 * invoke.texi (-ffloat-store): Clarify that this option
6347 does not affect intermediate results -- only variables.
6349 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
6351 * cpp.texi: Update for Fortran usage from Craig.
6353 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
6355 * rs6000.c (function_arg_boundary): Revert accidental change on
6358 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
6360 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
6361 (output_mi_thunk): Declare.
6363 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
6364 (output_function_profiler): Use r12 for temp, instead of r11 so
6365 that we preserve the static chain register.
6367 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
6369 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
6371 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6373 * sh.c (gen_shl_sext): Fix case 5.
6375 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6377 * reload1.c (reload_combine): Re-add line that got accidentally lost.
6379 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6381 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
6382 accessing variables until they are initialized via va_arg().
6384 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6386 * reload1.c (reload_combine): Initialize set before using.
6388 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
6390 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
6393 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
6395 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
6396 operand3 with mask before using it. Patch provided by Jim Wilson.
6398 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6400 * config/sparc/sparc.c (function_value): Perform the equivalent of
6401 PROMOTE_MODE for ARCH64.
6402 (eligible_for_epilogue_delay): Allow DImode operations in delay
6403 slot of a return for ARCH64.
6405 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6407 * sh.md (sqrtsf2): Fix mode of sqrt.
6409 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6411 * reload1.c (choose_reload_regs): Also try inheritance when
6412 reload_in is a stack slot of a pseudo, even if we already got a
6415 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6417 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
6418 (reload_cse_regs): New function body: call reload_cse_regs_1,
6419 reload_combine, reload_cse_move2add.
6420 When doing expensive_optimizations, call reload_cse_regs_1 a
6421 second time after reload_cse_move2add.
6422 (reload_combine, reload_combine_note_store): New functions.
6423 (reload_combine_note_use): New function.
6424 (reload_cse_move2add, move2add_note_store): New functions.
6426 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6428 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
6429 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
6431 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
6432 more than 3 such reloads.
6434 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
6435 RELOAD_FOR_X_ADDR_ADDR reload.
6437 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6439 * expr.c (store_constructor): When initializing a field that is smaller
6440 than a word, at the start of a word, try to widen it to a full word.
6442 * cse.c (cse_insn): When we are about to change a register,
6443 remove any invalid references to it.
6445 (remove_invalid_subreg_refs): New function.
6446 (mention_regs): Special treatment for SUBREGs.
6447 (insert_regs): Don't strip SUBREG for call to mention_regs.
6448 Check if reg_tick needs to be bumped up before that call.
6449 (lookup_as_function): Try to match known word_mode constants when
6450 looking for a norrower constant.
6451 (canon_hash): Special treatment for SUBREGs.
6453 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6455 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
6456 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
6457 defined, emit libcall to __enable_execute_stack. Also fix opcodes
6458 and offsets in actual stack trampoline code so they match the
6459 commentary and actually work.
6461 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6463 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
6465 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
6466 tmake_file. Set extra_parts to needed crt objects.
6467 * configure: Rebuilt.
6468 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
6469 (TARGET_DEFAULT): Set if default is v9 or ultra.
6470 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
6471 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
6472 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
6473 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
6474 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
6475 (TARGET_VERSION): Define.
6476 (MULTILIB_DEFAULT): Define.
6477 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
6478 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
6479 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
6481 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
6482 * config/sparc/sparc.c (sparc_override_options): If arch and
6483 pointer size disagree, emit diagnostic and fix it up. If
6484 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
6485 V8PLUS in 64-bit mode.
6486 * config/sparc/t-linux64: New file.
6487 * config/sparc/t-sol2-64: New file.
6488 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
6489 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
6490 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
6491 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
6492 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
6493 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
6495 (STARTFILE_SPEC): Set approriately based upon those.
6496 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
6497 disposition of DEFAULT_ARCH32_P.
6498 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
6499 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
6500 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
6501 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
6502 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
6504 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
6506 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
6508 * rtl.h (init_virtual_regs): New function.
6509 * emit-rtl.c (init_virtual_regs): Define.
6510 (insn_emit): Use it.
6511 * integrate.c (save_for_inline_copying): Likewise.
6513 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
6515 * config/arm/thumb.h: The following patches were made by Jim Wilson:
6516 (enum reg_class): Add NONARG_LO_REGS support.
6517 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
6518 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
6519 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
6520 completes. Re-enable HImode REG+OFFSET addresses.
6521 (LEGITIMIZE_RELOAD_ADDRESS): Define.
6523 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
6525 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
6527 * alpha.c (get_aligned_mem): Revert Sep 20 change.
6528 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
6529 (alpha_align_insns): Properly calculate initial offset wrt max_align.
6531 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
6533 * arm.c (find_barrier): Revert change of Apr 23. Handle table
6534 jumps as a single entity, taking into account the size of the
6537 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
6539 * tree.def (SWITCH_EXPR): New tree node definition.
6541 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
6543 * version.c: Bump for snapshot.
6545 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
6547 * version.c: Bump for snapshot.
6549 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
6551 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
6554 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
6556 * Revert this patch.
6557 * reload.c (find_reloads): Do not replace a pseudo with
6558 (MEM (reg_equiv_addr)) in the initializing insn for the
6561 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
6563 * final.c (final_scan_insn): Disable tracking CC across branches.
6565 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
6567 * expr.h (eh_rtime_match_libfunc): New extern declaration.
6568 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
6569 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
6570 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
6571 NULL. Only include <stdio.h> if inhibit_libc is not defined.
6573 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
6575 * toplev.c (rest_of_compilation): Skip compiling anything with
6576 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
6578 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
6580 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
6581 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
6582 use in_libcall_block.
6583 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
6584 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
6587 Mon Sep 21 14:02:23 1998
6589 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
6590 typo in no-fancy-math-387 description.
6592 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
6594 * version.c: Bump for snapshot.
6596 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
6598 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
6600 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
6602 * i386.h: (TARGET_SWITCHES) Add description fields for flags
6603 documented in install.texi.
6604 (TARGET_OPTIONS) Likewise.
6606 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
6608 * version.c: Bump for snapshot.
6610 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
6612 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
6613 * cccp.c (main): Likewise.
6615 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
6616 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
6619 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
6621 * Makefile.in (LIBS): Link in libiberty.a.
6622 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
6624 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
6626 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
6627 it to update bb boundaries. Update caller.
6628 * function.c (reposition_prologue_and_epilogue_notes): Update
6629 bb boundaries wrt the moved note.
6631 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
6633 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
6635 * configure: Regenerate.
6637 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
6639 * alpha.c (alpha_sr_alias_set): New variable.
6640 (override_options): Set it.
6641 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
6642 (mode_mask_operand): Fix signed-unsigned comparision warning.
6643 (alpha_expand_block_move): Likewise.
6644 (print_operand): Likewise.
6645 (get_aligned_mem): Use change_address.
6646 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
6647 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
6648 (alphaev4_next_nop, alphaev5_next_nop): New functions.
6649 (alpha_align_insns): Remade from old alphaev5_align_insns
6650 to handle multiple processors.
6651 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
6652 * output.h (label_to_alignment): Prototype.
6654 * tree.c (new_alias_set): New function.
6655 * tree.h (new_alias_set): Declare it.
6656 * c-common.c (c_get_alias_set): Use it.
6658 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
6660 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
6661 to an ABS expr, convert an unsigned input to signed.
6663 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
6665 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
6667 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
6669 * configure.in: Add support for c4x targets.
6670 * configure: Rebuilt.
6672 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
6674 * combine.c (distribute_notes): If an insn is a cc0 user, only
6675 delete it if we can also delete the cc0 setter.
6677 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
6679 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
6680 (invert_truthvalue): Enable truthvalue inversion for
6681 floating-point operands if -ffast-math.
6683 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
6685 * configure.in: Disable collect2 for nextstep. Instead use
6687 * configure: Rebuilt.
6688 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
6689 (ENDFILE_SPEC): Define.
6690 (OBJECT_FORMAT_MACHO): Define.
6691 (EH_FRAME_SECTION_ASM_OP): Define.
6692 * crtstuff.c: Handle MACHO.
6694 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
6696 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
6698 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
6700 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
6701 (_fpadd_parts): Get sign right for 0.
6703 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
6705 * ginclude/varargs.h: Add support for C4x target.
6706 * ginclude/stdargs.h: Likewise.
6708 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
6710 * alpha.c (alpha_return_addr): SET should be VOIDmode.
6711 (alpha_emit_set_long_const): Rewrite to be callable from reload
6713 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
6714 * alpha.md (movdi): Likewise.
6716 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
6718 * arm.c (add_constant): New parameter address_only, change caller.
6719 Set it non-zero if taking the address of an item in the pool.
6720 (arm_reorg): Handle cases where we need the address of an item in
6723 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
6725 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
6726 memory addresses that are not in standard canonical form.
6728 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
6730 * README.C4X: New file with information about the c4x ports.
6731 * ginclude/va-c4x.h: New file for c4x varargs support.
6732 * config/c4x: New directory with c4x port files.
6734 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
6736 * reload.c (find_reloads): Do not replace a pseudo with
6737 (MEM (reg_equiv_addr)) in the initializing insn for the
6740 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
6742 * toplev.c (rest_of_compilation): Set bct_p on second call to
6744 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
6746 (strength_reduce): Only call analyze_loop_iterations and
6747 insert_bct if bct_p set.
6748 (check_dbra_loop): Fix typo.
6749 (insert_bct): Use word_mode instead of SImode.
6750 (instrument_loop_bct): Likewise. Do not delete iteration count
6751 condition code generation insn. Initialize iteration count before
6753 * rtl.h (loop_optimize): Update prototype.
6755 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
6756 not doubleword aligned.
6758 * rs6000.c (optimization_options): New function.
6759 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
6760 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
6761 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
6762 first; cr1 can be used for FP record condition insns.
6764 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
6766 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
6769 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
6772 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
6774 (block_move_call): New function: Call a library routine to copy a
6776 (m32r_expand_block_move): New function: Expand a "movstrsi"
6777 pattern into a sequence of insns.
6778 (m32r_output_block_move): New function: Expand a
6779 "movstrsi_internal" pattern into a sequence of assembler opcodes.
6780 (m32r_block_immediate_operand): New function: Return true if the
6781 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
6783 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
6785 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
6787 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
6789 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6791 * regmove.c (copy_src_to_dest): Check that modes match.
6793 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
6795 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
6797 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
6799 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
6800 narrower than FLOAT_REGS.
6802 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
6804 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
6806 * Makefile.in (old_gxx_include_dir): removed
6808 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
6810 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
6813 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
6814 (sh_handle_pragma): Change function arguments to match new
6815 specification for HANDLE_PRAGMA.
6817 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6819 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
6821 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
6822 When generating output, initialize missing struct member to zero.
6824 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6826 * regmove.c (copy_src_to_dest): Don't copy if that requires
6827 (a) new register(s).
6829 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
6831 * global.c (reg_allocno): Now static.
6832 * reload1.c (reg_allocno): Delete declaration.
6833 (order_regs_for_reload): Take no arguments. Don't treat regs
6834 allocated by global differently than those allocated by local-alloc.
6836 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
6838 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
6839 condition, fix format strings.
6840 (output_function_epilogue): Likewise.
6842 * m68k/m68k.c: Don't include <stdlib.h> directly.
6844 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
6846 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
6847 mem_first_set, mem_last_set; because 0 can be a CUID.
6848 (oprs_unchanged_p): Use new definition.
6849 (record_last_reg_set_info): Likewise.
6850 (record_last_mem_set_info): Likewise.
6851 (compute_hash_table): Likewise.
6853 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
6855 * rs6000.c (output_epilogue): Handle Chill.
6857 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
6858 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
6860 * combine.c (make_extraction): If no mode is specified for
6861 an operand of insv, extv, or extzv, default it to word_mode.
6862 (simplify_comparison): Similarly.
6863 * expmed.c (store_bit_field): Similarly.
6864 (extract_bit_field): Similarly.
6865 * function.c (fixup_var_regs_1): Similarly.
6866 * recog.c (validate_replace_rtx_1): Similarly.
6867 * mips.md (extv, extzv, insv expanders): Default modes for most
6868 operands. Handle TARGET_64BIT.
6869 (movdi_uld, movdi_usd): New patterns.
6871 * pa.c (emit_move_sequence): Do not replace a pseudo with its
6872 equivalent memory location unless we have been provided a scratch
6873 register. Similarly do not call find_replacement unless a
6874 scratch register has been provided.
6876 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
6878 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
6881 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
6883 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
6884 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
6885 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
6886 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
6887 * c-decl.c (init_decl_processing): Update accordingly.
6888 * expr.c (expand_builtin): Likewise.
6890 * rtl.h (global_rtl): Add cfa entry.
6891 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
6892 (LAST_VIRTUAL_REGISTER): Update.
6893 * emit-rtl.c (global_rtl): Add cfa entry.
6894 (init_emit): Initialize it.
6895 * function.c (cfa_offset): New.
6896 (instantiate_virtual_regs): Initialize it.
6897 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
6898 (expand_function_end): Call expand_eh_return.
6899 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
6901 * except.c (current_function_eh_stub_label): Kill.
6902 (current_function_eh_old_stub_label): Likwise; update all references.
6903 (expand_builtin_set_return_addr_reg): Kill.
6904 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
6905 (expand_builtin_set_eh_regs): Kill.
6906 (eh_regs): Produce a third reg for the actual handler address.
6907 (eh_return_context, eh_return_stack_adjust): New.
6908 (eh_return_handler, eh_return_stub_label): New.
6909 (init_eh_for_function): Initialize them.
6910 (expand_builtin_eh_return, expand_eh_return): New.
6911 * except.h: Update prototypes.
6912 * flow.c (find_basic_blocks_1): Update references to the stub label.
6913 * function.h (struct function): Kill stub label elements.
6915 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
6916 register number is one that would be in the previous window.
6917 Provide a dummy definition for non-windowed targets.
6918 (get_reg_addr): New function.
6919 (get_reg, put_reg, copy_reg): Use it.
6920 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
6921 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
6923 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
6924 (alpha_init_expanders): Initialize it.
6925 (alpha_expand_epilogue): Use it.
6926 * alpha.h: Declare it.
6927 * alpha.md (eh_epilogue): New.
6929 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
6930 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
6932 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
6934 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
6937 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
6939 * except.h (struct eh_entry): Add false_label field.
6940 (end_catch_handler): Add prototype.
6941 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
6942 (start_catch_handler): When using old style exceptions, issue
6943 runtime typematch code before continuing with the handler.
6944 (end_catch_handler): New function, generates label after handler
6945 if needed by older style exceptions.
6946 (expand_start_all_catch): No need to check for new style exceptions.
6947 (output_exception_table_entry): Only output the first handler label
6948 for old style exceptions.
6949 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
6950 mechanism into one function, if a runtime matcher is provided.
6952 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
6954 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
6956 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
6958 * integrate.c (copy_decl_list): Fix typo.
6960 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6962 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
6965 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
6967 * version.c: Bump for snapshot.
6969 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
6971 * version.c: Bump for snapshot.
6973 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
6975 * version.c: Bump for snapshot.
6977 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6979 * invoke.texi (C Dialect Options): Put back missing @end itemize.
6981 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
6983 * configure.in: remove usage of `!' to negate the result of a
6984 command; some common shells do not support it
6986 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6988 * configure.in: in sparc9-sol2 config, use 'if test' not
6990 * configure: Rebuilt.
6992 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
6994 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
6995 (CPP_CPU_DEFAULT_SPEC): Likewise.
6996 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
6997 for arch64 libfuncs.
6999 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
7002 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7004 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
7006 * collect2.c: Don't declare `sys_siglist' here.
7007 (my_strsignal): Prototype and define new function. Use it in
7008 place of `sys_siglist' hacks.
7010 * mips_tfile.c: Likewise.
7012 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
7013 (GCC_NEED_DECLARATIONS): Likewise.
7015 * system.h (strsignal): Prototype it, if necessary.
7016 (sys_siglist): Declare it, if necessary.
7018 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7020 * loop.c (move_movables): While removing insn sequences, preserve
7021 the next pointer of the most recently deleted insn when we skip
7024 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
7026 * objc/config-lang.in: Do not output the name of the selected
7027 thread file when building the front-end. The Makefile for the
7028 runtime library will do this.
7030 * objc/Make-lang.in: Do not build the runtime library or install
7031 the Objective C header files. The Makefile for the runtime
7032 library will do this.
7034 * objc/Makefile.in (all.indirect): Only build the front-end.
7035 (compiler): Rename to `frontend'.
7036 (obj-runtime): Remove target.
7037 (copy-headers): Likewise.
7038 (clean): No need to remove `libobjc.a' any longer.
7040 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
7042 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
7043 supported with -mcpu=xxx.
7045 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7047 * flow.c (mark_set_1): Recognize multi-register structure return
7048 values in CALL insns.
7049 (mark_used_regs): Likewise.
7050 (count_reg_sets_1): Likewise.
7051 (count_reg_references): Likewise.
7052 * rtlanal.c (note_stores): Likewise.
7053 (reg_overlap_mentioned_p): Likewise.
7054 * haifa-sched.c (check_live_1): Likewise.
7055 (update_live_1): Likewise.
7056 (sched_analyze_1): Likewise.
7057 (sched_note_set): Likewise.
7058 (birthing_insn_p): Likewise.
7059 (attach_deaths): Likewise.
7061 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
7064 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
7066 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
7068 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7070 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
7072 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
7074 * configure.in: Add check for GAS subsection -1 support.
7075 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
7076 * configure config.in: Rebuilt.
7077 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
7078 SImode is subsection -1 works, else use DImode.
7079 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
7080 subsection -1 works.
7081 * config/sparc/sparc.c (sparc_output_addr_vec,
7082 sparc_output_addr_diff_vec): Use them if defined.
7084 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
7086 * tree.h (DECL_ORIGIN): New macro.
7087 * integrate.c (copy_and_set_decl_abstract_origin): New function.
7088 (copy_decl_list): Use it.
7089 (integrate_parm_decls): Likewise.
7090 (integrate_decl_tree): Likewise.
7091 * dwarf2out.c (decl_ultimate_origin): Simplify.
7092 * dwarfout.c (decl_ultimate_origin): Likewise.
7093 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
7094 (pushdecl): Likewise.
7096 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
7098 * config/rs6000/rs6000.c (output_epilog): Add Java support.
7100 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
7102 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
7104 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
7106 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
7107 empty or has a single entry.
7109 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
7110 before calling reg_to_stack.
7112 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
7114 * alpha.c (alphaev5_insn_pipe): Abort on default case.
7115 (alphaev5_next_group): Swallow CLOBBERs and USEs.
7117 * c-tree.h (warn_long_long): Declare it.
7119 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
7121 * emit-rtl.c (gen_lowpart_common): Disable optimization of
7122 initialized float-int union if the value is a NaN.
7124 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
7126 * c-lex.c (real_yylex): Don't warn about long long constants if
7127 we're allowing long long
7129 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
7131 * except.h (current_function_eh_stub_label): Declare.
7132 (current_function_eh_old_stub_label): Declare.
7133 * function.h (struct function): New members eh_stub_label and
7135 * except.c (current_function_eh_stub_label): New variable.
7136 (current_function_eh_old_stub_label): New variable.
7137 (init_eh_for_function): Clear them.
7138 (save_eh_status): Save them.
7139 (restore_eh_status): Restore them.
7140 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
7141 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
7142 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
7143 make an edge from the block that contains it to the block starting
7144 with the label if this label is one of the eh stub labels.
7145 If eh stub labels exist, show they are reachable from the last block
7148 * reload1.c (reload): Break out several subroutines and make some
7150 (calculate_needs_all_insns): New function, broken out of reload.
7151 (calculate_needs): Likewise.
7152 (find_reload_regs): Likewise.
7153 (find_group): Likewise.
7154 (find_tworeg_group): Likewise.
7155 (something_needs_reloads): New global variable, formerly in reload.
7156 (something_needs_elimination): Likewise.
7157 (caller_save_spill_class): Likewise.
7158 (caller_save_group_size): Likewise.
7159 (max_needs): Likewise.
7160 (group_size): Likewise.
7161 (max_groups): Likewise.
7162 (max_nongroups): Likewise.
7163 (group_mode): Likewise.
7164 (max_needs_insn): Likewise.
7165 (max_groups_insn): Likewise.
7166 (max_nongroups_insn): Likewise.
7167 (failure): Likewise.
7169 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
7171 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
7173 * loop.c (load_mems): Copy rtx for output mem.
7175 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
7177 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
7178 mips1 or mips2 either.
7180 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
7182 * pa.c (pa_reorg): New marking scheme for jumps inside switch
7184 (pa_adjust_insn_length): Update to work with new marking scheme
7185 for jumps inside switch tables.
7186 * pa.md (switch_jump): Remove pattern.
7187 (jump): Handle jumps inside jump tables.
7189 * Makefile.in (profile.o): Depend on insn-config.h
7191 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
7193 * iris6.h (DWARF2_UNWIND_INFO): Undef.
7195 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7197 Add preliminary native sparcv9 Solaris support.
7198 * configure.in: Recognize sparv9-*-solaris2*
7199 * configure: rebuilt
7200 * config.sub: Recognize sparcv9 just like sparc64.
7201 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
7202 config/sparc/sol2-cn.asm: Macroize so it can be shared between
7203 32-bit and 64-bit Solaris systems.
7204 * config/sparc/t-sol2: Assemble those with cpp.
7205 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
7206 (*TF*_LIBCALL): If ARCH64 use V9 names.
7207 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
7209 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
7211 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
7212 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
7214 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
7216 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
7217 to Pmode if CASE_VECTOR_MODE is something else.
7219 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
7221 * prefix.c (update_path): Correctly handle cases where PATH is
7222 a substring of the builtin prefix, but specifies a different
7225 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
7227 * expr.c: Corrected comment about what MOVE_RATIO does.
7228 * config/alpha/alpha.h: Ditto.
7229 * config/1750a/1750a.h: Ditto.
7230 * config/clipper/clipper.h: Ditto.
7231 * config/i386/i386.h: Ditto.
7233 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
7235 * configure.in (m68k-next-nextstep3*): Use collect2.
7236 Similarly for x86 NeXT configurations.
7237 * configure: Rebuilt.
7239 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
7241 * configure.in: Don't assume srcdir is .../gcc
7242 * configure: Rebuilt.
7244 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
7246 * global.c: Update comments.
7247 (global_alloc): Assign allocation-numbers
7248 even for registers allocated by local_alloc in case
7249 they are later spilled and retry_global_alloc is called.
7250 (mark_reg_store, mark_reg_clobber,
7251 mark_reg_conflicts, mark_reg_death): Always record a
7252 conflict with a pseudo register even if it has been
7253 assigned to a hard register.
7254 (dump_conflicts): Don't list pseudo registers already assigned to
7255 a hard register as needing to be allocated, but do list their
7257 * local-alloc.c: Update comment.
7259 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
7261 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
7262 * configure: Rebuilt.
7264 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
7266 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
7268 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
7269 for all targets that set -msoft-float.
7271 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7273 * toplev.c (print_switch_values): Make static to match prototype.
7275 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
7277 * configure.in: If we are unable to find the "gnatbind" program,
7278 then do not configure the ada subdir.
7279 * configure: Rebuilt.
7281 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
7283 * version.c: Bump for snapshot.
7285 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
7287 * version.c: Bump for snapshot.
7289 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7291 * Makefile.in (toplev.o): Depend on $(EXPR_H).
7292 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
7294 * gansidecl.h: Define ATTRIBUTE_NORETURN.
7296 * genattrtab.c: Have insn-attrtab.c include toplev.h.
7298 * genextract.c: Have insn-extract.c include toplev.h.
7300 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
7302 * toplev.c: Include expr.h.
7303 (really_sorry, fancy_abort): Remove prototypes.
7304 (set_target_switch): Add argument in prototype.
7305 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
7306 (v_really_sorry): Likewise.
7307 (print_version, print_single_switch, print_switch_values): Make
7308 static and add prototype arguments.
7309 (decl_printable_name): Add prototype arguments.
7310 (lang_expand_expr_t): New typedef.
7311 (lang_expand_expr): Declare as a lang_expand_expr_t.
7312 (incomplete_decl_finalize_hook): Add prototype argument.
7313 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
7314 (botch): Likewise for variable `s'.
7315 (rest_of_type_compilation): Mark variables `type' and `toplev'
7316 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
7317 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
7318 (display_help): Make variable `i' an `unsigned long'.
7319 (main): Remove unused parameter `envp'.
7320 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
7321 Cast -1 when comparing it with a `size_t'.
7323 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
7324 prototype with ATTRIBUTE_NORETURN.
7325 (fatal_insn_not_found, fatal_insn, really_sorry,
7326 push_float_handler, pop_float_handler): Add prototypes.
7327 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
7328 (do_abort, botch): Add prototypes.
7330 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
7332 * final.c (final): If a label is reached only from a single jump,
7333 call NOTICE_UPDATE_CC on the jump and its predecessor before
7334 emitting the insn after the label.
7336 * i386.h: Add AMD K6 support.
7337 Change TARGET_* macros to use table lookup.
7338 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
7339 (ADJUST_COST): Change definition to call function in i386.c.
7340 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
7341 * i386.c: Add AMD K6 support.
7342 Add constants for feature tests used by TARGET_* macros.
7343 (split_di): If before reload, call gen_lowpart and gen_highpart.
7344 (x86_adjust_cost): New function.
7345 (put_jump_code): New function.
7346 (print_operand): New codes 'D' and 'd'.
7347 * i386.md: New insn types. New insn attribute "memory".
7348 Redefine scheduling parameters to use new types and add AMD K6
7349 support. Explicitly set type of most insns.
7350 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
7351 Pro and K6 prefer movl $1,reg to incl reg.
7352 (adddi3, subdi3): Set cc_status.
7353 (DImode shift patterns): Change label counters from HOST_WIDE_INT
7354 to int; x86 can't have more than 2^31 DImode shifts per file.
7355 (setcc): Combine all setcc patterns. Allow writing memory.
7356 Combine all jump patterns using match_operator.
7357 (*bzero): Name pattern. Emit mutliple stos instructions when that
7358 is faster than rep stos.
7359 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
7362 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
7364 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
7367 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
7369 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
7370 not whatever we're generating now.
7372 * alpha.c (set_frame_related_p, FRP): New.
7373 (alpha_expand_prologue): Mark frame related insns.
7374 (alpha_expand_epilogue): Likewise, but with a null FRP.
7375 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
7376 * alpha.md (exception_receiver): New.
7377 * alpha/crtbegin.asm (.eh_frame): New beginning.
7378 (__do_frame_setup, __do_frame_takedown): New.
7379 * alpha/crtend.asm (.eh_frame): New ending.
7380 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
7381 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
7382 (ASM_FILE_START): Don't emit .file for dwarf2.
7384 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
7385 * rtl.c (reg_note_name): Likewise.
7386 * rtl.texi (REG_NOTES): Likewise.
7387 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
7390 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
7392 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
7393 * i386.md (movsf, movdf, movxf): Validate memory address returned
7394 from force_const_mem. Kill useless REG_EQUAL setting code.
7396 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
7398 * m68k.md (zero_extendsidi2): Fix typo.
7400 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
7402 * configure.in: Removed references to the removed file
7403 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
7404 * arm*-*-netbsd* and ns32k-*-netbsd*.
7405 * config/i386/xm-netbsd.h: Removed unnecessary file.
7406 * config/m68k/xm-netbsd.h: Likewise.
7407 * config/sparc/xm-netbsd.h: Likewise.
7408 * config/mips/xm-netbsd.h: Likewise.
7410 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
7412 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
7413 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
7415 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
7416 for exact section attributions.
7418 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
7420 * i386/crtdll.h (CPP_PREDEFINES): Define.
7422 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
7424 * m68k.md (5200 movqi): Do not allow byte sized memory references
7426 * m68k.c (output_move_qimode): Do not use byte sized operations on
7429 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
7430 explicit rules for building. Similarly for alloca, vfprintf,
7431 choose-temp and mkstemp, getopt, getopt1, and obstack.
7432 (INCLUDES): Add $(srcdir)/../include.
7433 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
7434 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
7436 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
7438 * gcc.c (do_spec_1): [case 'o'] Account for
7439 lang_specific_extra_outfiles.
7440 (main): Correctly clear all slots in outfiles for
7441 lang_specific_extra_outfiles. Set input_file_number before
7442 calling lang_specific_pre_link.
7444 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
7446 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
7448 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7450 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
7452 (sparc_output_deferred_case_vectors): If no work to do, return.
7453 Fix thinko in Sept 1 change.
7455 1998-09-03 SL Baur <steve@altair.xemacs.org>
7457 * Makefile.in: add semicolon in BISON definition for portability.
7459 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
7461 * config/nextstep.c (handle_pragma): Correct name of third
7464 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
7466 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
7467 * config/m32r/m32r.h: Make register 17 be fixed.
7468 * config/m32r/m32r.c: Use SImode for cc operations.
7470 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
7472 * invoke.texi (Warning Options): Add -Wnon-template-friend
7475 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
7477 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
7479 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
7481 * rs6000.md (movsf): Disable explicit secondary-reload-like
7482 functionality if TARGET_POWERPC64.
7483 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
7486 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
7488 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
7489 and term.h from fixinc.wrap.
7491 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7493 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
7494 safe to include both string.h and strings.h together.
7495 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
7496 which headers to search for function declarations. Continue to
7497 prefer string.h over strings.h when both are not acceptable.
7499 * acconfig.h (STRING_WITH_STRINGS): Add stub.
7501 * configure.in: Call GCC_HEADER_STRING.
7503 * system.h: Test STRING_WITH_STRINGS when deciding which headers
7504 to include. Continue to prefer string.h over strings.h when both
7507 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7509 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
7510 not assume top 32-bits of symbolic addresses are zero if
7513 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
7515 * ginclude/va-alpha.h: Protect entire second portion of the
7516 file against double inclusion.
7518 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
7520 Added support for the Boehm's garbage collector.
7521 * configure.in: Handle --enable-objc-gc.
7522 * configure: Rebuilt.
7523 * Makefile.in (CHECK_TARGETS): Add check-objc.
7524 (check-objc): New rule.
7525 * objc/Make-lang.in: Build a different Objective-C library that
7526 runs with the Boehm's collector.
7527 * objc/encoding.c (objc_round_acc_size_for_types): New function.
7528 * objc/encoding.c: Correctly compute the size of compound types in
7529 the presence of bitfields. Skip the variable name of the type if
7530 any. Added support for long long.
7531 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
7532 (_F_GCINVISIBLE): New mask.
7533 * objc/gc.c: New file. Compute the type memory mask associated with
7534 a class based on the runtime information.
7535 * objc/misc.c: Added the hooks that use the Boehm's collector
7536 allocation functions.
7537 * objc/objc-act.c (build_class_template): Generate a new class
7538 member (gc_object_type) to hold the class' type memory mask.
7539 (build_shared_structure_initializer): Initialize the new member to
7541 (encode_complete_bitfield): New function. Generate the new
7543 (encode_field_decl): Generate the new encoding only for the GNU
7545 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
7547 (class_get_gc_object_type): New function to mark a pointer instance
7548 variable as a weak pointer.
7549 * objc/objc-features.texi: New file.
7550 * objc/objc.h (gc_object_type): New class member.
7551 * objc/objects.c (class_create_instance): Create a typed memory
7552 object when compiled with Boehm's collector support.
7553 * objc/sendmsg.c (__objc_init_install_dtable): Call
7554 __objc_send_initialize instead of setting the initialize flag.
7555 (__objc_send_initialize): Call __objc_generate_gc_type_description
7556 to generate the class type memory mask. Rewrite the code that
7557 sends the +initialize so that it is called only once (bug report
7558 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
7559 * testsuite/objc: New testsuite for Objective-C type encoding.
7560 * testsuite/lib/objc-torture.exp: New file.
7561 * testsuite/lib/objc.exp: New file.
7563 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
7565 * jump.c (jump_optimize): In if/then/else transformations, add
7566 another call to modified_between_p for the jump insn.
7568 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
7570 * fix-header.c (symlink): Treat like readlink.
7572 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7574 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
7577 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
7579 * config/nextstep.h: Update HANDLE_PRAGMA macro.
7580 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
7581 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
7583 * config/nextstep.c (handle_pragma): Take three arguments, as per
7584 the new HANDLE_PRAGMA macro specification.
7585 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
7586 per the new HANDLE_PRAGMA macro specification.
7587 * config/i960/i960.c (process_pragma): Take three arguments, as
7588 per the new HANDLE_PRAGMA macro specification.
7590 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
7592 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
7593 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
7594 if unknown pragmas are encountered.
7595 (handle_sysv_pragma): Interpret return code from
7596 handle_pragma_token (). Return success/failure indication rather
7597 than next unprocessed character.
7598 (pragma_getc): New function: retrieves characters from the
7599 input stream. Defined when HANDLE_PRAGMA is enabled.
7600 (pragma_ungetc): New function: replaces characters back into the
7601 input stream. Defined when HANDLE_PRAGMA is enabled.
7603 * c-pragma.c (handle_pragma_token): Return success/failure status
7606 * c-pragma.h: Change prototype of handle_pragma_token().
7608 * varasm.c: (handle_pragma_weak): Only create this function if
7609 HANDLE_PRAGMA_WEAK is defined.
7611 * c-common,c (decl_attributes): If defined call the expression
7612 contained within the INSERT_ATTRIBUTES macro before adding
7613 attributes to a decl.
7615 * tm.texi (HANDLE_PRAGMA): Document the new verion of
7616 HANDLE_PRAGMA, which takes three arguments.
7617 (INSERT_ATTRIBUTES): Document this new macro.
7619 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
7620 new INSERT_ATTRIBUTES macro.
7622 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7624 * config/sparc/sparc.md (movdf): Only generate special RTL for
7625 LABEL_REFs when PIC.
7626 (move_label_di): Remove
7627 (movdi_pic_label_ref, movdi_high_pic_label_ref,
7628 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
7629 references when PIC.
7630 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
7631 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
7632 output an .xword for all 64-bit cases.
7634 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7636 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
7637 alignment, use FUNCTION_BOUNDARY instead.
7638 (sparc_output_deferred_case_vectors): Likewise.
7640 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7642 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
7643 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
7645 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
7647 * alpha/va_list.h: New file.
7648 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
7650 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
7652 * NEWS: Add SCO Openserver and Unixware 7 notes.
7656 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
7658 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
7659 (record_constant_1): Handle RANGE_EXPR.
7661 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
7663 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
7664 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
7665 and NOTE_INSN_RANGE_END specially.
7666 (reemit_notes): Likewise.
7668 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7670 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
7671 (ultrasparc_sched_init): Remove unneeded &.
7673 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
7675 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
7676 for m68020-60, to prevent the use of fintrz.
7678 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
7680 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
7682 * Makefile.in: Likewise.
7683 * configure: Regenerated.
7685 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
7687 * configure.in (gxx_include_dir): Changed to
7688 '${prefix}/include/g++'-${libstdcxx_interface}.
7689 * configure: Rebuilt.
7691 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
7693 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
7695 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
7696 *sequences* *below* which scalar moves will be used.
7698 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
7700 * collect2.c (mktemp): Delete unused declaration.
7702 * config/xm-netbsd.h: Remove unnecessary file.
7703 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
7704 file anymore, it is not needed.
7706 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
7708 * convert.c (convert_to_integer): Issue an error on conversions to
7711 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
7713 * Makefile.in: Add lang_tree_files and gencheck.h.
7714 * configure.in: Generate them.
7715 * gencheck.c: Include gencheck.h.
7717 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7719 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
7720 movdi_lo_sum_pic and movdi_high_pic and make visible.
7721 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
7722 emit these when Pmode is not SImode.
7723 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
7725 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
7727 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
7728 .linkonce directive after the first time.
7730 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
7732 * m68k.md (beq0_di): Generate correct (and more efficient) code when
7733 the clobbered operand overlaps with an input.
7734 (bne0_di): Similarly.
7736 * Makefile.in (INSTALL): Remove "--no-header" argument.
7738 * NEWS: Various updates.
7740 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7742 * config/sparc/sparc.c (arith_operand, const64_operand,
7743 const64_high_operand, arith_double_4096_operand): Mark mode as
7745 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
7747 (sparc_emit_set_const64): Remove unused variable i.
7748 (sparc_splitdi_legitimate): Likewise for addr_part.
7749 (ultra_code_from_mask): Likewise for mask.
7750 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
7751 reverse return values so it matches usage and comments.
7752 (ultra_flush_pipeline): Likewise.
7753 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
7754 this_type, and allow loads and stores of differing FP modes as
7755 they do not create a conflict.
7756 (ultra_find_type): Initialize fpmode to SFmode, fix
7757 parenthesization thinkos in large conditional.
7758 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
7759 Init free_slot_mask after ultra_cur_hist is reset, not before.
7760 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
7761 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
7762 use ultra_flush_pipeline instead, then re-init group pointer.
7763 Fix statement with no effect. If no progress made in, and no
7764 instructions scheduled at all, advance to new pipeline cycle else
7765 we get into an endless loop.
7766 (ultrasparc_adjust_cost): Remove previous arg.
7767 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
7769 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
7771 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
7772 code. Use reg_overlap_mentioned_p to detect when source and
7773 destination overlap.
7774 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
7776 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
7778 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
7779 COMPARISON_VAL, into invariant_p.
7781 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7783 * regmove.c (regclass_compatible_p): New function.
7784 (regmove_optimize): Use it.
7786 Use NREGS parameter insted of calling max_reg_num.
7788 (fixup_match_1): Don't use code = MINUS when later tieing with
7789 a hard register is likely.
7791 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7793 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
7794 COMPARISON_VAL was normalized.
7796 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
7798 * loop.c (check_dbra_loop): The loop ending comparison value
7799 must be an invariant or we can not reverse the loop.
7801 * loop.c (scan_loop): Count down from max_reg_num - 1 to
7802 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
7804 (load_mems_and_recount_loop_regs_set): Likewise.
7806 * i386.c (print_operand): Remove obsolete 'c' docs.
7808 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
7810 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
7811 * frame.c (init_object_mutex): New function.
7812 (init_object_mutex_once): Likewise.
7813 (find_fde): Call it.
7814 (__register_frame_info): Likewise.
7815 (__register_frame_info_table): Likewise.
7816 (__deregister_frame_info): Likewise.
7818 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
7820 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
7822 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7824 * loop.c (check_dbra_loop): Enable code for reversal
7825 of some loops without a known constant loop end.
7827 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
7829 * haifa-sched.c (last_clock_var): New.
7830 (schedule_block): Initialize it.
7831 (schedule_insn): Use it to fill insn modes with issue information.
7833 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
7834 Tag trapb and next insn with TImode.
7835 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
7836 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
7837 Invoke alphaev5_align_insns as appropriate.
7838 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
7839 (MD_SCHED_VARIABLE_ISSUE): New.
7840 * alpha.md (attr type): Add multi.
7841 (define_asm_attributes): New.
7842 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
7843 (arg_home): Likewise.
7844 (fnop, unop, realign): New.
7846 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
7848 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
7849 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
7851 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
7852 (rs6000-ibm-aix4.[12]*): Likewise.
7853 * configure: Regnerate.
7855 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
7857 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
7858 already contains the return address.
7860 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
7862 * calls.c (expand_call): Use bitfield instructions to extract/deposit
7863 word sized hunks when loading unaligned args into registers.
7865 * haifa-sched.c (sched_analyze_insn): Only create scheduling
7866 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
7868 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
7870 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7872 * loop.c (check_dbra_loop): Add some code that would allow reversal
7873 of some loops without a known constant loop end if it were enabled.
7875 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
7877 * mips.md (lshrsi3_internal2+2): Fix type-o.
7879 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7881 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
7882 correctly with regards to stdio.h.
7884 * calls.c: Remove stdarg.h/varargs.h.
7887 * combine.c: Likewise.
7888 * cpperror.c: Likewise.
7889 * cpplib.c: Likewise.
7890 * cpplib.h: Likewise.
7891 * doprint.c: Likewise.
7892 * emit-rtl.c: Likewise.
7893 * final.c: Likewise.
7894 * fix-header.c: Likewise.
7896 * genattr.c: Likewise.
7897 * genattrtab.c: Likewise.
7898 * gencodes.c: Likewise.
7899 * genconfig.c: Likewise.
7900 * genemit.c: Likewise.
7901 * genextract.c: Likewise.
7902 * genflags.c: Likewise.
7903 * genopinit.c: Likewise.
7904 * genoutput.c: Likewise.
7905 * genpeep.c: Likewise.
7906 * genrecog.c: Likewise.
7907 * mips-tfile.c: Likewise.
7908 * prefix.c: Likewise.
7909 * protoize.c: Likewise.
7910 * regmove.c: Likewise.
7911 * toplev.c: Likewise.
7914 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
7916 * config/sparc/sparc.c (sparc_override_options): If not
7917 TARGET_FPU, turn off TARGET_VIS.
7918 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
7919 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
7920 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
7921 (movdi_insn_sp64): Add VIS fzero alternative.
7922 (clear_sf, clear_df): New VIS patterns.
7923 (movsf, movdf expanders): Allow fp_zero_operand flat out when
7925 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
7927 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
7929 * loop.c (n_times_set, n_times_used, may_not_optimize,
7930 reg_single_usage): Convert to varrays. All uses changed.
7931 (insert_loop_mem): Return a value.
7932 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
7933 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
7936 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
7939 * configure.in: Do not set thread_file to "irix" since no such
7942 * sparc.md (float abs/neg splits): Check reload_completed before
7943 calling alter_subreg.
7945 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7947 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
7949 * config/sparc/sparc.h: Declare it.
7950 * config/sparc/sparc.md (float abs/neg splits): Use it.
7951 (all other splits): Handle SUBREGs properly where necessary.
7952 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
7954 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
7956 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
7957 an insn on the unfilled_slots_list that has no delay slots.
7958 (fill_eager_delay_slots): Similarly.
7960 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
7962 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
7963 as an ordinary operand.
7965 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
7967 * tree.c (valid_machine_attribute): Don't apply attributes to both
7970 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
7972 * reload.c (operands_match_p): Handle rtvecs.
7974 * i386.c (legitimate_pic_address_disp_p): New.
7975 (legitimate_address_p): Use it.
7976 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
7977 Handle constant pool symbols just like statics.
7978 (emit_pic_move): Use Pmode not SImode for clarity.
7979 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
7980 [UNSPEC]: New, handling what we killed above.
7981 [PLUS]: Detect and abort on invalid symbol arithmetic.
7982 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
7984 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
7986 * alias.c: Include output.h.
7987 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
7988 different if we're in a varargs function.
7989 * Makefile.in (alias.o): Depend on output.h
7991 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7993 * sh.h (GIV_SORT_CRITERION): Delete.
7995 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
7997 * regclass.c (regclass): Use xmalloc/free instead of alloca.
7998 * stupid.c (stupid_life_analysis): Ditto.
7999 * reload1.c (reload): Ditto.
8001 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
8003 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
8004 arith_double_4096_operand, arith_double_add_operand): New
8006 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
8007 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
8008 them to transform add/sub 4096 into add/sub -4096.
8010 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8012 * loop.c (scan_loop): Allocate some slop to handle pseudos
8013 generated by move_movables.
8014 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
8017 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
8019 * tree.def (DECL_RESULT): Correct documentation.
8021 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
8023 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
8024 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
8025 conflicts will all RELOAD_FOR_OUTPUT reloads.
8027 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
8028 loads the function result, substitute with a USE.
8030 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
8032 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
8033 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
8034 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
8035 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
8036 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
8037 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
8039 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
8040 'o' to 'm' for GPR variant constraints.
8042 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
8044 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
8046 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
8048 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
8049 when the source and destination overlap.
8051 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
8052 clash with global type.
8054 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
8056 * fixinc.irix: Add curses.h handling from fixinc.wrap.
8058 * c-common.c (combine_strings): Also set TREE_READONLY.
8059 Change warn_write_strings to flag_const_strings.
8060 * c-decl.c, c-tree.h: Likewise.
8062 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8064 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
8065 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
8066 sequence, use SET/IOR instead so CSE can see it.
8067 * config/sparc/sparc.md (movhi_const64_special,
8068 movsi_const64_special): New patterns necessitated by that change.
8069 (movhi_high): Remove.
8070 (movhi_lo_sum): Change to match an IOR.
8071 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
8072 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
8073 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
8074 (movdf splits): Allow when not V9 or when not ARCH64 and integer
8075 registers are involved.
8076 (snesi_zero_extend split): Remove reload_completed test.
8077 (unnamed plus and minus zero_extend sidi splits): Add it.
8079 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
8081 * extend.texi: Remove description of extension to explicit
8082 instantiation that is now endorsed by standard C++.
8084 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8086 * config/arc/arc.c (arc_initialize_pic): Remove.
8087 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
8088 nothing on any platform and is invoked by no-one, it does not even
8089 appear in the documentation.
8090 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
8091 * config/sparc/sparc.c (initialize_pic): Likewise.
8092 (find_addr_reg): Remove this as well, no longer referenced after
8095 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
8097 * recog.c (validate_replace_rtx_group): New function.
8098 * recog.h (validate_replace_rtx_group): Declare it.
8099 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
8100 the entire group of substitutions.
8102 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
8104 * loop.c (load_mems): Fix initializers.
8106 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8108 * config/sparc/sparc.md (TFmode splits): Handle destination
8109 registers being referenced in the address correctly.
8111 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
8112 TREE_UNSIGNED, when bitsize of type's mode is larger than
8113 HOST_BITS_PER_WIDE_INT.
8115 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
8117 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
8118 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
8119 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
8121 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
8124 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
8126 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
8127 * h8300.h (TINY_DATA_NAME_P): Likewise.
8128 (STRIP_NAME_ENCODING): Handle '&'.
8130 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
8131 register (it could be accessed via an outer SUBREG).
8132 (REG_OK_FOR_BASE_P): Likewwise.
8133 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
8135 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
8138 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
8140 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8142 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
8143 must be offsettable so the splits can be made.
8145 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
8147 * config/i386/winnt.c: Include system.h, not stdio.h to get
8148 sys/param.h pulled in before rtl.h in case the system defines MIN
8151 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
8153 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
8155 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
8157 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
8159 * cpplib.c (cpp_define): Handle macros with parameters.
8161 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
8163 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
8164 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
8165 and DImode 64-bit. Use llong for minimal-toc SFmode and
8166 SYMBOL_REF / LABEL_REF 64-bit.
8167 (output_function_profiler): Use llong for profiler label and ld to
8168 load 64-bit label address.
8170 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
8172 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
8175 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
8177 * version.c: Bump for snapshot.
8179 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
8181 * version.c: Bump for snapshot.
8183 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
8185 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
8187 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
8189 * tm.texi (Misc): Fix typo "teh".
8191 * tm.texi (PIC): Fix typo "PPIC".
8193 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
8194 effect when -O2 and higher.
8195 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
8197 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
8199 * regclass.c: Changed register set documentation to be consistent
8202 * final.c (final_start_function) Removed redundant test for
8205 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
8207 * rtl.h (rtx_function): New type.
8208 (for_each_rtx): New function.
8209 * rtlanal.c (for_each_rtx): Define it.
8211 * recog.c (change_t): New type.
8212 (change_objects, change_old_codes, change_locs, change_olds):
8214 (changes): New variable.
8215 (validate_change): Dynamically allocate room for more changes, if
8216 necessary. Uses changes array instead of change_objects, etc.
8217 (apply_change_group): Use changes array instead of
8218 change_objects, etc.
8220 * loop.c (loop_mem_info): New type.
8221 (loop_mems): New variable.
8222 (loop_mems_idx): Likewise.
8223 (looop_mems_allocated): Likewise.
8224 (scan_loop): Remove nregs parameter.
8225 (next_insn_in_loop): New function.
8226 (load_mems_and_recount_loop_regs_set): Likewise.
8227 (load_mems): Likewise.
8228 (insert_loop_mem): Likewise.
8229 (replace_loop_mem): Likewise.
8230 (replace_label): Likewise.
8231 (INSN_IN_RANGE_P): New macro.
8232 (loop_optimize): Don't pass max_reg_num() to scan_loop.
8233 (scan_loop): Remove nregs parameter, compute it after any new
8234 registers are created by load_mems. Use INSN_IN_RANGE_P and
8235 next_insn_in_loop rather than expanding them inline. Call
8236 load_mems to load memory into pseudos, if appropriate.
8237 (prescan_loop): Figure out whether or not there are jumps from the
8238 loop to targets other than the label immediately following the
8239 loop. Call insert_loop_mem to notice all the MEMs used in the
8240 loop, if it could be safe to pull MEMs into REGs for the duration
8242 (strength_reduce): Use next_insn_in_loop. Tweak comments.
8244 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
8246 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
8248 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8250 * config/sparc/sparc.c (finalize_pic): Check for the correct
8251 nonlocal_goto_receiver UNSPEC number.
8252 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
8253 making note of this dependency existing in sparc.c
8254 (negtf2_notv9 split): Give NEG SFmode.
8255 (negsf2): Fix insn output string.
8257 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
8259 * c-common.c (decl_attributes): Issue an error if the argument
8260 to alias is not a string.
8262 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
8264 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
8265 pending memory flush list.
8267 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
8269 (try_combine): Allow combining insns with REG_LIBCALL notes.
8271 * expr.c (emit_block_move): Do not call memcpy as a libcall
8272 instead build up a CALL_EXPR and call it like any other
8274 (clear_storage): Similarly for memset.
8276 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
8279 * Makefile.in (cplus-dem.o): Provide explicit rules for building
8282 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
8283 and REG_LIVE_LENGTH as successful substitutions are made.
8285 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
8287 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
8288 statement after end of loop label.
8290 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8292 * config/sparc/sparc.c (ultra_types_avail): New variable.
8293 (ultra_build_types_avail): New function to record mask of insn
8294 types in ready list at this cycle.
8295 (ultrasparc_sched_reorder): Call it.
8296 (ultra_find_type): Use it to quicken the search. Also simplif
8297 dependency check, don't use rtx_equal_p because we know exactly
8298 what we are looking for.
8300 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
8302 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
8303 for architecture v4.
8305 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8307 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
8309 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
8310 movdf_const_intreg and helper splits): New patterns to move float
8311 constants into integer registers.
8312 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
8315 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
8318 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
8320 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
8322 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
8323 a BASE_REGS register is needed as an intermediate when copying
8324 a symbolic value into any register class other than BASE_REGS.
8326 * expr.c (move_by_pieces): No longer static. Remove prototype.
8327 * rtl.h (move_by_pieces): Add extern prototype.
8328 * mips.c (expand_block_move): Handle aligned straight line copy by
8329 calling move_by_pieces.
8331 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
8334 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
8336 * stmt.c (expand_end_loop): Tidy. Allow unconditional
8337 jumps out of the loop to be treated as part of the exit test.
8339 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
8340 Jeff Law <law@cygnus.com>
8342 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
8343 * cplus-dem.c: Delete.
8345 * Makefile.in (fold-const.o): depend on $(RTL_H).
8347 * fold-const.c: Include rtl.h to get the prototype for
8348 `set_identifier_local_value'.
8350 * loop.c (express_from_1): Remove unused variable `tmp'.
8351 (combine_givs): cast the first argument of bzero to char *.
8353 * toplev.c (display_help): Remove unused variable `looking_for_start'.
8355 * c-decl.c (init_decl_processing): Remove unneeded &.
8357 * alpha.h (alpha_initialize_trampoline): Provide prototype.
8359 * except.c (set_exception_lang_code, set_exception_version_code):
8360 Change parameter from `short' to `int' to avoid using a gcc
8363 * except.h (set_exception_lang_code, set_exception_version_code):
8364 Likewise for prototypes.
8366 * flow.c (count_reg_references): Remove unused variables `regno'
8369 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
8371 * prefix.c (translate_name): Cast the result of `alloca'.
8373 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
8375 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
8377 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
8379 (valid_dbcc_comparison_p): Mark mode argument as unused.
8380 (symbolic_operand): Likewise.
8381 (legitimize_pic_address): Likewise.
8382 (const_uint32_operand): Likewise.
8383 (const_sint32_operand): Likewise.
8384 * sched.c [!INSN_SCHEDULING]: Define only dummy function
8385 schedule_insns and comment out rest of file.
8387 * m68k.c (output_move_simode_const): Use subl to move a zero into an
8389 (output_move_[hq]imode): Likewise.
8391 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
8393 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
8394 * invoke.texi: Corresponding changes.
8396 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
8398 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
8400 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8402 * config/sparc/sparc.c (ultra_code_from_mask,
8403 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
8404 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
8405 ultrasparc_sched_init, ultrasparc_variable_issue,
8406 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
8407 functions to describe UltraSPARC pipeline exactly to Haifa.
8408 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
8409 as there is nothing the scheduler can do about it. Indicate that
8410 REG_DEP_OUTPUT's collide. Fixup formatting.
8411 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
8412 divide costs on Ultra for DImode.
8413 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
8415 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
8416 ieuN and add call_no_delay_slot to type list.
8417 (cti function unit): New unit for branches on UltraSPARC.
8418 (subx/addx insns): Set type to misc.
8419 (sidi zero/sign extension insns on arch64): Set type to shift.
8420 (sign_extendhidi2_insn): Set type to sload.
8422 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
8424 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
8425 (output_epilog): Use if != 0 for offset.
8426 (rs6000_fatal_bad_address): Prepare for Intl.
8427 * rs6000.h (rs6000_fatal_bad_address): Declare.
8428 * rs6000.md (movsfcc, movdfcc): Use else if.
8429 (elf_high): Use {liu|lis}.
8430 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
8431 (movsi): Use rs6000_fatal_bad_address.
8433 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
8435 * reload.c (find_equiv_reg): Reject equivalences separated
8436 by a volatile instruction.
8438 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
8440 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
8442 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
8444 * alpha.md (movsicc): Fix mode mismatch.
8446 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
8448 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
8450 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
8452 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8454 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
8455 write-only modifier from operand 1 constraint.
8457 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8459 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
8460 emitting a XOR of -1 at the end, emit a NOT instead for combine's
8462 (sparc_emit_set_const64): Likewise, also when computing trailing
8463 bits do not negate low_bits and make fast_int an int.
8465 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
8467 * loop.c (add_label_notes): Do not ignore references to labels
8468 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
8469 * gcse.c (add_label_notes): Similarly.
8471 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
8473 * m68k.md (adddi_dilshr32): One of the operands must be a register.
8474 (adddi_dishl32): Similarly.
8476 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
8478 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
8479 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
8480 * cse.c (cse_basic_block): Add parens to shut up warnings.
8482 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8484 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
8485 sparc_emit_set_const64_longway, const64_is_2insns,
8486 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
8487 in 64-bit constant formation.
8488 * config/sparc/sparc.md (snesi_zero_extend split): Generate
8489 rtl for addx not subx.
8490 (define_insn movdi_const64_special): Make available even when
8491 HOST_BITS_PER_WIDE_INT is not 64.
8492 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
8493 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
8494 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
8495 instances of operand 1 inside a QI subreg.
8496 (xordi3_sp64_dbl): Remove '%' constraint for op1.
8497 (one_cmpldi2_sp64): Fix output string.
8498 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
8500 (unnamed arch64 ashift DI): Truncate shift count if greater than
8503 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
8505 * expr.c (store_expr): Don't optimize away load-store pair
8506 when either source or destination have a side effect.
8508 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
8510 * genrecog.c (add_to_sequence): Fatal error if the modes of the
8511 operands of SET are incompatible.
8513 * alpha.md: Fix max and min patterns so modes of SET operands match.
8515 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
8517 * configure.in: Avoid [[ by using test and changequote.
8518 * configure: Rebuild.
8520 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8522 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
8524 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
8525 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
8526 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
8527 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
8528 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
8529 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
8530 Fix mismatching modes in SET operands.
8531 (conditional move patterns): Fix formatting.
8532 (unnamed subx arch64 pattern): Remove duplicate insn.
8534 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8536 * config/sparc/sparc.c (const64_operand, const64_high_operand):
8537 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
8538 (input_operand): Fixup test for what we accept for constant
8540 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
8542 (safe_constDI): Remove.
8543 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
8544 gen_safe_XOR64): New functions.
8545 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
8546 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
8548 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
8549 available when HOST_BITS_PER_WIDE_INT is not 64.
8550 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
8551 move before movdi_insn_sp64 pattern.
8552 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
8553 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
8554 symbolic_operand as predicate for second operand.
8555 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
8556 expander): Give set VOIDmode.
8558 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
8560 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
8562 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
8564 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
8566 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
8568 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
8570 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
8572 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
8574 * install.texi: Various SCO OpenServer tweaks.
8576 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
8578 * reload1.c (eliminate_regs_in_insn): Handle another case when
8579 eliminating the frame pointer to the hard frame pointer. Add
8580 missing ep->to_rtx check to one existing case.
8582 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
8584 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
8586 * tree.h: De-conditionalize init_priority code.
8588 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
8589 * collect2.c (NM_FLAGS): Change from -p to -n.
8591 * configure.in: Turn on collect2 for mipstx39-elf.
8592 Handle use_collect2=no properly.
8594 * c-common.c: De-conditionalize init_priority code.
8595 * collect2.c (extract_init_priority, sort_ids): New fns.
8596 (main): Call sort_ids.
8597 Move sequence_number to file scope.
8599 * configure.in: Handle --enable-init-priority.
8600 * c-common.c (attrs): Add A_INIT_PRIORITY.
8601 (init_attributes, decl_attributes): Likewise.
8602 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
8603 * tree.c (get_file_function_name_long): Split out...
8604 (get_file_function_name): ...from here.
8606 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
8608 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
8611 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
8613 * toplev.c (display_help): Add braces to shut up warnings.
8614 * tree.c (simple_cst_equal): Likewise.
8616 * fold-const.c (non_lvalue): Don't deal with null pointer
8618 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
8620 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
8621 of any size to a pointer.
8623 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
8625 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
8627 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
8629 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
8630 which will be saved.
8631 * mn10300.md (prologue insn): Only save registers which need saving.
8632 (epilogue insn): Similarly.
8634 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
8637 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
8639 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
8640 VAR_DECL's in gp addressable sections.
8642 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
8644 * sparc.c: Change return <exp> to <exp>; return; in functions
8646 * sparc.md: Add empty semicolon statement after final label in
8649 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8651 * config/sparc/sparc.md (define_insn addx_extend): Rename to
8652 addx_extend_sp64, only allow when TARGET_ARCH64.
8653 (define_insn addx_extend_sp32 and split): Version that works when
8655 (define_insn subx_extend): Likewise.
8656 (define_split adddi3 and subdi3 with zero extension): Fixup and
8657 correct bugs when not TARGET_ARCH64.
8659 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
8661 * except.c (set_exception_lang_code, set_exception_version_code):
8662 Use prototype-style definition if __STDC__, to match declaration
8665 * genemit.c: Change FAIL and DONE macros not to use loops.
8667 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
8669 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
8670 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
8672 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
8674 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
8676 * README.g77: Update from Craig.
8678 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8680 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
8682 (safe_constDI sparc_emit_set_const64_quick1,
8683 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
8684 analyze_64bit_constant, const64_is_2insns,
8685 create_simple_focus_bits): Fix some bugs when compiled on real
8687 (function_arg_record_value_3, function_arg_record_value_2,
8688 function_arg_record_value): Add fully prototyped forward decls.
8689 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
8690 to cmpsi_insn and use on both 64 and 32 bit targets.
8691 (define_insn cmpsi_insn_sp64): Remove.
8692 (define_expand zero_extendsidi2): Allow for 32-bit target too.
8693 (define_insn zero_extendsidi2_insn): Rename to
8694 zero_extendsidi2_insn_sp64.
8695 (define_insn zero_extendsidi2_insn_sp32): New pattern and
8696 assosciated forced split for it.
8698 * config/sparc/sparc.c (const64_operand, const64_high_operand):
8700 * config/sparc/sparc.h: Declare them.
8701 (PREDICATE_CODES): Add them.
8702 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
8703 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
8705 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
8707 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
8708 in v9 case as the latter makes the Solaris assembler crash.
8710 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8712 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
8713 for TFmode when !v9. We require offsettable memory addresses.
8714 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
8715 DFmode register number conversions.
8716 * config/sparc/sparc.md (define_split DFmode moves): If register
8717 is a SUBREG do alter_subreg on it before using.
8718 (define_expand movtf): Fixup comment about alignment on v9.
8719 (define_split TFmode moves): Don't use gen_{high,low}part, create
8720 explicit SUBREGs instead.
8722 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
8724 * Makefile.in (mbchar.o): Depend on mbchar.c.
8726 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8727 Richard Henderson <rth@cygnus.com>
8729 Rewrite Sparc backend for better code generation and
8730 improved sparc64 support.
8731 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
8733 * config/sparc/sysv4.h: Likewise.
8734 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
8735 move_operand, v8plus_regcmp_op, emit_move_sequence,
8736 singlemove_string, doublemove_string, mem_aligned_8,
8737 output_move_double, output_move_quad, output_fp_move_double,
8738 move_quad_direction, output_fp_move_quad, output_scc_insn):
8740 (small_int_or_double): New predicate.
8741 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
8742 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
8743 old pic_{sethi,lo_sum}_si patterns.
8744 (mem_min_alignment): New generic function to replace
8745 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
8746 available and can test for arbitrary alignments. All callers
8748 (save_regs, restore_regs, build_big_number,
8749 output_function_prologue, output_cbranch, output_return,
8750 sparc_flat_save_restore, sparc_flat_output_function_prologue,
8751 sparc_flat_output_function_epilogue): Prettify
8753 (output_function_epilogue): Likewise and add code to output
8754 deferred case vectors.
8755 (output_v9branch): Likewise, add new arg INSN and use it to tack
8756 on branch prediction settings. All callers changed.
8757 (print_operand): Likewise and output %l44 for LO_SUMs when
8759 (sparc_splitdi_legitimate): New function to make sure DImode
8760 splits can be run properly when !arch64.
8761 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
8762 Reformat example code in comments.
8763 (set_extends): Remove UNSPEC/v8plus_clear_high case.
8764 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
8765 of deferred case vectors we need to output.
8766 (sparc_defer_case_vector): Record a case vector.
8767 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
8768 sparc_output_deferred_case_vectors): New functions to output them.
8769 (sparc_emit_set_const32): New function to form 32-bit constants in
8770 registers when that requires more than one instruction.
8771 (safe_constDI, sparc_emit_set_const64_quick1,
8772 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
8773 analyze_64bit_constant, const64_is_2insns,
8774 create_simple_focus_bits, sparc_emit_set_const64): New functions
8775 which do the same for 64-bit constants when arch64.
8776 (sparc_emit_set_symbolic_const64): New function to emit address
8777 loading for all code models on v9.
8778 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
8779 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
8780 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
8781 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
8782 inaccuracies in comments, add symbolic and text_segment operands
8783 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
8784 GENERAL_REGS in these cases as a temp REG is needed to load these
8785 addresses into a register properly.
8786 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
8788 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
8789 quads are guarenteed to have 16-byte alignment.
8790 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
8791 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
8792 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
8793 deferred case vector implementation.
8794 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
8795 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
8796 Generate "internal label - label" instead of "label - 1b".
8797 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
8798 (PREDICATE_CODES): Remove sparc_operand, move_operand,
8799 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
8801 (doublemove_string, output_block_move, output_fp_move_double,
8802 output_fp_move_quad, output_move_double, output_move_quad,
8803 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
8804 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
8805 (sparc_emit_set_const32, sparc_emit_set_const64,
8806 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
8807 mem_min_alignment, small_int_or_double): Add externs.
8808 * config/sparc/sparc.md: Document the many uses of UNSPEC and
8809 UNSPEC_VOLATILE in this backend.
8810 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
8811 unary to types which execute in it.
8812 (define_function_unit ieu_shift): Rename to ieu0.
8813 (define_function_unit ieu1): New, executes compare, call, and
8814 uncond_branch type insns.
8815 (define_function_units for type fdivs, fdivd, fsqrt): These
8816 execute in the fpu multiply unit not the adder on UltraSparc.
8817 (define_expand cmpdi): Disallow TARGET_V8PLUS.
8818 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
8819 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
8820 allows the arith_double_operand predicate and rHI constraint when
8822 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
8823 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
8824 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
8825 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
8826 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
8827 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
8828 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
8829 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
8830 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
8831 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
8832 sign_extendqihi2_insn, sign_extendqisi2_insn,
8833 sign_extendqidi2_insn, sign_extendhidi2_insn,
8834 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
8835 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
8836 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
8837 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
8838 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
8839 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
8840 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
8841 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
8842 smulsi3_highpart_v8plus, unnamed subreg mult,
8843 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
8844 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
8845 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
8846 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
8847 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
8848 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
8849 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
8850 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
8851 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
8852 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
8853 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
8854 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
8855 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
8856 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
8857 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
8858 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
8859 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
8860 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
8861 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
8862 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
8863 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
8864 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
8865 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
8866 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
8867 call_address_untyped_struct_value_sp32,
8868 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
8869 call_value_symbolic_sp32, call_value_address_sp64,
8870 call_value_symbolic_sp64, branch_sp32, branch_sp64,
8871 flush_register_windows, goto_handler_and_restore,
8872 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
8873 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
8874 return_addsi, return_di, return_adddi, return_sf, all call+jump
8875 peepholes, trap, unnamed trap insns): Prettify output strings.
8876 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
8877 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
8878 Likewise and force + implement splits for integer cases.
8879 (define_insn return_sf_no_fpu): Likewise and allow to match when
8880 no-fpu because of our subreg SFmode splits.
8881 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
8882 zero_extendqidi2_insn, zero_extendhidi2_insn,
8883 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
8884 input_operand for second operand.
8885 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
8886 reg_or_0_operand for operand 2 so new splits can use it.
8887 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
8888 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
8890 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
8891 CONST_DOUBLEs for operand 2.
8892 (define_insn move_label_di): Likewise and label distance
8893 optimization because it no longer works with new deferred case
8894 vector scheme. To be revisited.
8895 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
8896 and allow reg_or_0_operand and J constraint for second operand.
8897 (define_insn jump): Set branch predict taken on V9.
8898 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
8899 new deferred case vector scheme.
8900 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
8901 (define_insn negdi2_sp32): Force + implement splits.
8902 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
8903 one_cmplsi2_not_liveg0 respectively, and create expander of original
8904 names which emit special rtl for TARGET_LIVE_G0.
8905 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
8906 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
8907 gen_compare_reg, FAIL instead.
8908 (define_insn sgtu, sleu): Likewise and check gen_s*() return
8909 values when trying to reverse condition codes, if they FAIL then
8911 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
8912 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
8913 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
8914 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
8915 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
8916 set output string to # to indicate they are mandatory splits.
8917 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
8918 pic_sethi_di, move_pic_label_si): Remove.
8919 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
8920 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
8922 (define_expand movsi_pic_label_ref, define_insn
8923 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
8924 expander and insns to handle PIC label references and deferred
8926 (define_insn get_pc_via_rdpc): Comment out as it is no longer
8928 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
8929 Rewrite to not use emit_move_sequence, make use of new constant
8930 formation code, and new splits for all multi-insn cases.
8931 (define_insn movqi_insn): Remove sethi case, it can never happen.
8932 Use reg_or_zero_operand instead of const0_rtx explicit test,
8933 use input_operand instead of move_operand for source, and use
8934 general_operand now for dest.
8935 (define_insn movhi_insn): Similar but leave sethi case.
8936 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
8937 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
8938 movhi_lo_sum respectively, prettify output string.
8939 (define_insn movsi_zero_liveg0): New pattern to put zero into a
8940 register when needed on TARGET_LIVE_G0.
8941 (define_insn movsi_insn): Use general_operand and input_operand
8942 for dest and src respectively. Simplify applicability test.
8943 Prettify output strings, and add clr alternative for J
8945 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
8946 deprecated std and reg-reg DI moves): Remove and...
8947 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
8948 implementation which uses forced splits for all non-single insn
8950 (define_split DI move cases on !arch64): New splits to handle all
8951 situations of 64-bit double register DImode on 32bit, and
8952 unaligned registers and memory addresses for all subtargets.
8953 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
8955 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
8956 input_operand for dest and src respectively, prettify output
8958 (define_insn movdf_insn, movdf_no_e_insn, store_df,
8959 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
8961 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
8962 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
8963 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
8964 movtf_no_e_insn_sp64) Replace with new
8965 implementation which uses forced splits for all non-single insn
8967 (define_split DF move cases): New splits in similar vein to DI
8969 (define_insn sethi_di_medlow, sethi_di_medium_pic,
8970 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
8971 movdi_sp64_insn): Remove old v9 code model and constant loading
8973 (define_insn pic_lo_sum_di, pic_sethi_di,
8974 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
8975 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
8976 embmedany_sethi, embmedany_losum, embmedany_brsum,
8977 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
8978 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
8979 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
8980 scheme, using unspecs, secondary reloads, and one to one sparc
8981 insn to rtl insn mapping for better scheduling and code gen.
8982 (define_expand reload_indi, reload_outdi): Reload helpers for
8983 MEDANY and EMBMEDANY symbol address loading cases which require a
8985 (define_expand movsicc): Remove v8plus_regcmp cases.
8986 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
8987 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
8988 cmp_diqi_trunc_set): New patterns used by some of the new scc
8990 (define_insn xordi3_sp64_dbl): New pattern used for constant
8991 formation when crossing from 32-bit targets.
8992 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
8994 (define_insn addx, subx): Make visible and prettify.
8995 (define_insn adddi3_insn_sp32): Likewise and force split.
8996 (define_insn addx_extend, subx_extend, unnamed): New patterns for
8997 64bit scc split usage.
8998 (define_insn unnamed plusDI zero_extend, unnamed minusDI
8999 zero_extend, subdi3): Force and implement splits.
9001 * final.c (final_scan_insn): Don't output labels if target
9002 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
9005 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
9006 don't forget to walk inside SEQUENCESs too as these are what the
9007 delay slot scheduler will create.
9009 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
9011 * alpha.md (extxl+1,+2): New patterns to work around
9014 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
9016 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
9017 caused bad assembly code to be generated.
9019 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
9021 * netbsd.h: Fix typo.
9023 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
9025 * config.sub: Fix typo.
9027 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
9029 * invoke.texi (Environment Variables): Typo: Change "ascpects"
9031 (Running Protoize): Typo: Change "ther" into "other".
9033 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
9035 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
9036 * m68k/netbsd.h: Likewise.
9037 * ns32k/netbsd.h: Likewise.
9038 * sparc/netbsd.h: Likewise.
9040 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
9042 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
9043 * ginclude/va-clipper.h (va_list): Likewise.
9045 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
9047 * rs6000.c (rs6000_override_options): If big endian and -Os, use
9048 load/store multiple instructions unless user overrides.
9050 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
9052 * ns32k/netbsd.h: Fix typo.
9054 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
9056 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
9057 labels with .debugsym if no parallel insns.
9059 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
9061 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
9062 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
9064 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
9066 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
9067 (AR_FOR_TARGET): Define.
9069 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
9071 * dyn-string.h: New file.
9072 * dyn-string.c: Likewise.
9073 * Makefile.in (OBJS): Add dyn-string.o.
9074 (dwarf2out.o): Add dyn-string.h dependency.
9075 (dyn-string.o): List dependencies.
9076 * dwarf2out.c: Include dyn-string.h.
9077 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
9078 (addr_const_to_string): Take a dyn_string_t, not a char* as a
9079 prototype. Use dyn_string_append rather than strcat, throughout.
9080 (addr_to_string): Use dyn_string_t.
9082 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
9084 Function entry/exit profiling instrumentation:
9085 * expr.h (profile_function_entry_libfunc,
9086 profile_function_exit_libfunc): Declare new variables.
9087 * optabs.c: Define them here.
9088 (init_optabs): Initialize them.
9089 * tree.h (struct tree_decl): New flag
9090 no_instrument_function_entry_exit.
9091 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
9092 * c-decl.c (duplicate_decls): Merge it.
9093 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
9094 (init_attributes): Use it for "no_instrument_function".
9095 (decl_attributes): Handle it, for functions that have not yet been
9096 compiled. Set decl flag.
9097 * flags.h (flag_instrument_function_entry_exit): Declare new
9099 * toplev.c (flag_instrument_function_entry_exit): Define it here.
9100 (f_options): New option "instrument-functions".
9101 * function.h (struct function): New field instrument_entry_exit.
9102 * function.c (current_function_instrument_entry_exit): New
9104 (push_function_context_to, pop_function_context_from): Save and
9106 (expand_function_start): Set current_ variable, maybe emit return
9107 label and entry profile call.
9108 (expand_function_end): Maybe emit exit profile call.
9110 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
9112 * i386.md (movqi): When optimizing a load of (const_int 1) into a
9113 NON_QI_REG_P, pretend the register is SImode.
9115 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
9117 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
9118 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
9119 manufacturer id for ns32k.
9120 * configure: Regenerated.
9121 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
9122 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
9123 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
9124 * config/m68k/netbsd.h: Same.
9125 * config/ns32k/netbsd.h: Same.
9126 * config/sparc/netbsd.h: Same.
9128 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
9130 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
9131 or UNROLL_COMPLETELY loop that starts with a jump to its
9134 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
9136 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
9137 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
9138 (print_operand, case 'B'): Don't fall through.
9139 (print_operand, case 'S'): Correct mask begin/end computation.
9140 Use HOST_BITS_PER_WIDE_INT.
9141 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
9142 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
9143 * rs6000/aix41.h (CPP_PREDEFINES): Same.
9144 * rs6000/aix43.h (CPP_PREDEFINES): Same.
9146 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
9148 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
9149 constraint from second alternative.
9151 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
9153 * configure.in: Fix --without/--disable cases for local-prefix,
9154 gxx-include-dir and checking.
9156 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
9158 * configure.in (enable_haifa): Set by default for sparc64 too.
9161 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
9163 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
9164 * i386/winnt.c (associated_type): New fn.
9165 (i386_pe_valid_type_attribute_p): New fn.
9166 (i386_pe_check_vtable_importexport): Remove.
9167 (i386_pe_dllexport_p): Use associated_type.
9168 (i386_pe_dllimport_p): Likewise.
9170 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
9171 * i386.c (i386_valid_type_attribute_p): Also accept
9172 attributes for METHOD_TYPEs.
9174 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
9176 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
9178 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
9180 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
9182 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
9183 them from generating a new base name for each occurence of
9186 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
9188 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
9190 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
9194 * cplus-dem.c (type_kind_t): New type.
9195 (demangle_template_value_parm): Add type_kind_t parameter. Rely
9196 on this paramter, rather than demangling the type again.
9197 (demangle_integral_value): Pass tk_integral.
9198 (demangle_template_: Pass the value returned from do_type.
9199 (do_type): Return a type_kind_t. Pass tk_integral to
9200 demangle_template_value_parm for array bounds.
9201 (demangle_fund_type): Likewise.
9203 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
9205 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
9208 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
9210 * pa.c (move_operand): Accept CONSTANT_P_RTX.
9212 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
9214 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
9216 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
9219 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
9221 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
9222 (DEBUGGER_ARG_OFFSET): Likewise.
9224 * mn10300.md (movsf): Remove last change. Not needed.
9226 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
9228 * c-lex.c (yylex): Fix boundary conditions in character literal and
9229 string literal loops.
9231 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
9233 * longlong.h (count_leading_zeros): Sparclite scan instruction was
9234 being invoked incorrectly.
9236 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
9237 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
9239 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
9240 * configure.in: Added i[34567]86-*-win32
9241 * config.sub: Ditto.
9242 * configure: Rebuilt.
9244 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
9246 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
9247 the frame pointer and compiling PIC code and reload has not completed.
9249 * i386.c (output_to_reg): Add code to emulate non-popping DImode
9252 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
9254 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
9256 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
9258 * Makefile.in (install-info): Only try to update the info
9259 directory file if it exists in the first place.
9261 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
9263 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
9265 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
9267 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
9268 CONST_DOUBLE source.
9270 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
9272 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
9273 strings as the insertion of USER_LABEL_PREFIX.
9274 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
9276 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
9279 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
9281 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
9282 already defined type.
9284 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
9286 * expr.c (check_max_integer_computation_mode): Allow conversions
9287 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
9288 (expand_expr): Likewise.
9290 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
9292 * expr.c (expand_expr): Expand RETURN_EXPR.
9294 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
9296 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
9298 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
9300 * dwarf2out.c (output_aranges): Call stripattributes
9301 for TEXT_SECTION references.
9302 (output_line_info): Likewise.
9304 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
9306 * profile.c (branch_prob): Call allocate_reg_info after outputting
9307 profile rtl in instrument_arcs.
9309 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
9311 * fixinc.irix (math.h): Install wrapper instead of copying.
9313 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
9315 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
9316 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
9317 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
9318 lang_flag_0. Added documentation in the flag table.
9320 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
9322 * cccp.c (do_include): Fix vax c style include handling.
9324 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
9326 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
9328 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
9330 * fold-const.c (non_lvalue): Don't deal with null pointer
9332 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
9334 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
9336 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
9337 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
9338 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
9339 (u_short_cint_operand): Same.
9340 (reg_or_cint_operand): Same.
9341 (logical_operand): Same.
9342 (input_operand): Same.
9343 (reg_or_short_operand): Use u_short_cint_operand.
9345 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
9347 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
9348 but keep the insns and splits. Adjust so when the ultimate destination
9349 is memory, use cvtql.
9351 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
9353 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
9355 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
9357 * gcc.c (do_spec): Call "error" not "warning".
9359 * configure.in: Fix minor problems with gas feature detection code.
9360 * configure: Rebuilt.
9362 * gcc.c (do_spec): Issue a warning for '%[]' usage.
9365 * gcc.c: Delete %[spec] support.
9366 (do_spec_1, case '('): Likewise.
9367 (do_spec_1, case '['): Call error.
9369 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
9371 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
9372 (CPP_SUBTARGET_SPEC): Default to empty string.
9373 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
9374 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
9375 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
9376 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
9378 * alpha/linux.h (CPP_PREDEFINES): Tidy.
9379 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
9380 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
9381 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
9382 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
9383 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
9384 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
9385 * alpha/vxworks.h: Likewise.
9387 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
9389 * mips.md (reload_outsi): Added missing REGNO call.
9390 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
9392 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
9393 another match_operator and compare the codes.
9395 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
9397 * MIPS multiply pattern fixes:
9398 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
9399 Add union classes for HI, LO, or HILO plus general registers.
9400 (GENERATE_MADD): Deleted.
9401 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
9402 Add TARGET_MAD to condition.
9403 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
9404 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
9405 "*d" for accumulator, to give preference to LO initially but not
9408 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
9410 * configure.in (enable_c_mbchar): New configure option.
9411 (extra_cpp_objs): Always available now.
9413 * cexp.y (mbchar.h): #include it.
9414 (yylex): Handle Multibyte characters in character literals.
9416 * cccp.c (mbchar.h): #include it.
9417 (main): Set character set based on LANG environment variable.
9418 (rescan): Handle multibyte characters in comments.
9419 (skip_if_group): See above.
9420 (validate_else): See above.
9421 (skip_to_end_of_comment): See above.
9422 (macarg1): See above.
9423 (discard_comments): See above.
9424 (rescan): Handle multibyte characters in string and character literals.
9425 (collect_expansion): See above.
9426 (skip_quoted_string): See above.
9427 (macroexpand): See above.
9428 (macarg1): See above.
9429 (discard_comments): See above.
9430 (change_newlines): See above.
9432 * c-lex.c (mbchar.h): #include it.
9433 (GET_ENVIRONMENT): New macro.
9434 (init_lex): Set character set based on LANG environment variable.
9435 (yylex): Handle multibyte characters in character literals.
9436 (yylex): Handle multibyte characters in string literals.
9438 * Makefile.in (mbchar.o): New target.
9439 (cccp$(exeext)): @extra_cpp_objs@ is always available.
9440 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
9442 * mbchar.[ch]: New files for multibyte character handling.
9444 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
9446 * jump.c (jump_optimize): When simplifying noop moves and
9447 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
9448 the PUSHes to rewrite in second loop as we did in the first.
9450 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
9452 * cplus-dem.c (demangle_nested_args): Make function definition
9453 static to match the prototype.
9455 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
9457 * alloca.c: Respect USE_C_ALLOCA.
9458 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
9459 * gengenrtl.c (xmalloc): Likewise.
9461 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
9463 * loop.h (struct induction): Add no_const_addval.
9464 * loop.c (the_movables, reg_address_cost): New variables.
9465 (init_loop): Init reg_address_cost.
9466 (loop_optimize): Call end_alias_analysis.
9467 (scan_loop): Init the_movables.
9468 (record_giv): Init induction->no_const_addval.
9469 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
9470 [REG]: Rearrange loop search test to catch more cases.
9471 (general_induction_var): Return success not benefit; take an extra
9472 argument for that. Change all callers.
9473 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
9474 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
9475 [default]: Search the_movables for additional combinations.
9476 (sge_plus_constant, sge_plus): New functions.
9477 (express_from_1): New function.
9478 (express_from): Always define. Rewrite using express_from_1.
9479 (combine_givs_p): Handle more cases. Ignore address cost.
9480 (cmp_combine_givs_stats): New function.
9481 (combine_givs_used_once, combine_givs_benefit_from): New functions.
9482 (combine_givs): Rewrite to do best-fit combination.
9484 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
9485 (fold): Do a complete (A*C)+(B*C) association check.
9487 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
9489 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
9491 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
9493 * mn10300.c (MODES_TIEABLE_P): Fix typo.
9495 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
9497 * tree.c (valid_machine_attribute): Only create a new type variant if
9498 there is a decl to use it.
9500 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
9502 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
9505 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
9507 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
9510 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
9512 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
9513 Simplify tests for clearing an address register.
9514 (expand_prologue): Corresponding changes.
9516 * mn10300.md (movXX patterns): Make sure the destination is an
9517 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
9518 (logical patterns): Split into expanders + patterns
9519 (zero and sign extension patterns): Similarly.
9520 (shift patterns): Similarly.
9522 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
9524 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
9525 for the sequence, recording base values.
9527 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
9529 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
9531 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
9533 * gcc.c: Remove ANSI-C ism from --help code.
9535 * toplev.c: Support --help with USE_CPPLIB.
9537 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
9539 * configure.in: Rework gas feature code to work with symlink based
9542 * extend.texi: Clarify some issues related to local variables
9543 assigned to explicit registers.
9545 * mn10300.md (mulsi): Turn into expander + pattern.
9547 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
9550 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
9552 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
9554 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
9556 * version.c: Bump again to distinguish mainline tree from the
9559 See ChangeLog.0 for earlier changes.
9562 add-log-time-format: current-time-string