1 Wed Dec 30 23:38:55 1998 Jeffrey A Law (law@cygnus.com)
3 * i386.md (doubleword shifts): Avoid namespace pollution.
5 Wed Dec 30 23:00:28 1998 David O'Brien <obrien@NUXI.com>
7 * configure.in (FreeBSD ELF): Needs special crt files.
9 Wed Dec 30 22:50:13 1998 Geoffrey Noer <noer@cygnus.com>
11 * i386/xm-cygwin.h: change DIR_SEPARATOR to forward slash.
13 1998-12-30 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
15 * loop.c (check_dbra_loop): While reversing the loop, if the
16 comparison value has a VOID mode use the mode of the other operand
19 Wed Dec 30 22:24:00 1998 Michael Meissner <meissner@cygnus.com>
21 * rs6000.md ({save,restore}_stack_function): Take 2 operands to
22 avoid warnings in compiling explow.c.
24 (patch from Ken Raeburn, raeburn@cygnus.com)
25 * rs6000.c (rs6000_stack_info): Force 8-byte alignment of
26 fpmem_offset. Compute total size after that, and then
27 rs6000_fpmem_offset using both values.
29 Mon Dec 28 19:26:32 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
31 * gcc.texi (Non-bugs): ``Empty'' loops will be optimized away in
32 the future; indeed that already happens in some cases.
34 Tue Dec 29 11:58:53 1998 Richard Henderson <rth@cygnus.com>
36 * sparc.c (input_operand): Recognize (const (constant_p_rtx)).
37 (arith_operand): Remove constant_p_rtx handling.
38 (const64_operand, const64_high_operand): Likewise.
39 (arith11_operand, arith10_operand, arith_double_operand): Likewise.
40 (arith11_double_operand, arith10_double_operand, small_int): Likewise.
41 (small_int_or_double, uns_small_int, zero_operand): Likewise.
42 * sparc.h (PREDICATE_CODES): Likewise.
44 * rtl.h (CONSTANT_P): Remove CONSTANT_P_RTX.
46 Tue Dec 29 11:32:54 1998 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>:
48 * rtl.def (CONSTANT_P_RTX): Clarify commentary.
49 * expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
50 consider constant CONSTRUCTOR constant and to defer some cases
52 * cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
53 * regclass.c (reg_scan_mark_refs, case CONST): Likewise.
55 Tue Dec 29 11:30:10 1998 Richard Henderson <rth@cygnus.com>
57 * expr.c (init_expr_once): Kill can_handle_constant_p recognition.
58 * cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.
60 * alpha.c (reg_or_6bit_operand): Remove CONSTANT_P_RTX handling.
61 (reg_or_8bit_operand, cint8_operand, add_operand): Likewise.
62 (sext_add_operand, and_operand, or_operand): Likewise.
63 (reg_or_cint_operand, some_operand, input_operand): Likewise.
64 * alpha.h (PREDICATE_CODES): Likewise.
66 Sat Dec 26 23:26:26 PST 1998 Jeff Law (law@cygnus.com)
68 * version.c: Bump for snapshot.
70 Sat Dec 26 09:17:04 1998 Jeffrey A Law (law@cygnus.com)
72 * gengenrtl.c (gencode): Always use bzero to clear memory instead
73 of dangerous casts and stores.
75 * Makefile.in (compare, gnucompare): Add missing else true clauses.
77 Fri Dec 25 23:00:56 1998 Jeffrey A Law (law@cygnus.com)
79 * alpha.md (builtin_longjmp): Add missing "DONE".
81 Thu Dec 24 10:39:57 1998 Stan Cox <scox@cygnus.com>
83 * gcc.c (execute): Enable -pipe with win32.
85 Wed Dec 23 10:27:44 1998 Nick Clifton <nickc@cygnus.com>
87 * config/arm/t-arm-elf: Add multiplib option for leading
90 * config/arm/thumb.h (ASM_OUTPUT_LABELREF): Use variable
91 'user_label_prefix' rather than macro USER_LABEL_PREFIX.
93 (thumb_shiftable_const): Use macro 'BASE_REG_CLASS' rather
94 than variable 'reload_address_base_reg_class'. [Note this
95 change is unrelated to the others in this patch].
97 * config/arm/unknown-elf.h (USER_LABEL_PREFIX): Default to no
100 Wed Dec 23 09:51:32 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
102 * alias.c (record_alias_subset): Remove ignored `&'.
103 (init_alias_once): Likewise.
105 * c-lex.c (UNGETC): Cast first argument of comma expression to void.
107 * config/mips/mips.c (mips_asm_file_end): Cast the result of
108 fwrite to `int' when comparing against one.
110 * config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
111 (INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.
113 * cse.c (rehash_using_reg): Change type of variable `i' to
116 * dwarf2out.c (initial_return_save): Cast -1 to unsigned before
119 * except.c (duplicate_eh_handlers): Remove unused variable `tmp'.
121 * final.c (final_scan_insn): Likewise for variable `i'.
122 (output_asm_insn): Cast a char to unsigned char when used as an
125 * gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
128 * loop.c (strength_reduce): Remove unused variables `count' and `temp'.
130 * recog.c (preprocess_constraints): Cast a char to unsigned char
131 when used as an array index.
133 * regmove.c (find_matches): Likewise.
135 * reload1.c (calculate_needs): Add default case in switch.
136 (eliminate_regs_in_insn): Initialize variable `offset'.
137 (set_offsets_for_label): Change type of variable `i' to unsigned.
138 (reload_as_needed): Wrap variable `i' in macro check on
139 AUTO_INC_DEC || INSN_CLOBBERS_REGNO_P.
141 * scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
142 with ATTRIBUTE_UNUSED. Cast variable `start_written' to size_t
143 when comparing against one.
145 * stor-layout.c (layout_decl): Cast maximum_field_alignment to
146 unsigned when comparing against one. Likewise for
147 GET_MODE_ALIGNMENT().
148 (layout_record): Cast record_align to int when comparing against a
150 (layout_type): Cast TYPE_ALIGN() to int when comparing against a
153 * tree.c (get_identifier): Cast variable `len' to unsigned when
154 comparing against one.
155 (maybe_get_identifier): Likewise
157 Wed Dec 23 00:10:01 1998 Jeffrey A Law (law@cygnus.com)
159 * toplev.c (rest_of_compilation): Do not set reload_completed.
160 * reload1.c (reload): Set reload_completed before calling
161 cleanup_subreg_operands.
163 Tue Dec 22 23:58:31 1998 Richard Henderson <rth@cygnus.com>
165 * reload1.c (emit_reload_insns): Check `set' not null before use.
167 Tue Dec 22 15:15:45 1998 Nick Clifton <nickc@cygnus.com>
169 * rtlanal.c (multiple_sets): Change type of 'found' from 'rtx' to
172 Tue Dec 22 13:55:44 1998 Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>
174 * halfpic.c (half_pic_encode): Delete redundant code.
176 Tue Dec 22 13:02:22 1998 Michael Meissner <meissner@cygnus.com>
178 * toplev.c (main): Delete handling of -dM as a preprocessor
181 Mon Dec 21 17:39:38 1998 Michael Meissner <meissner@cygnus.com>
183 * toplev.c (main): Don't emit any warnings when using -dD, -dM, or
184 -dI, which are handled by the preprocessor.
186 Sun Dec 20 16:13:44 1998 John F. Carr <jfc@mit.edu>
188 * configure.in: Handle Digital UNIX 5.x the same as 4.x.
189 * i386/sol2.h: Define LOCAL_LABEL_PREFIX as ".".
191 Sun Dec 20 07:39:52 PST 1998 Jeff Law (law@cygnus.com)
193 * version.c: Bump for snapshot.
195 Sat Dec 19 22:24:22 PST 1998 Jeff Law (law@cygnus.com)
197 * version.c: Bump for snapshot.
199 Sat Dec 19 21:41:32 PST 1998 Jeff Law (law@cygnus.com)
201 * version.c: Bump for snapshot.
203 Sat Dec 19 09:52:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
205 * genattr.c (fatal): Qualify a char* with the `const' keyword.
207 * genattrtab.c (fatal, attr_printf, attr_string, write_attr_set,
208 write_unit_name, write_eligible_delay, expand_units,
209 make_length_attrs, write_attr_case, find_attr,
210 make_internal_attr): Likewise.
211 * gencheck.c (tree_codes): Likewise.
212 * gencodes.c (fatal): Likewise.
213 * genconfig.c (fatal): Likewise.
214 * genemit.c (fatal): Likewise.
215 * genextract.c (fatal, walk_rtx, copystr): Likewise.
216 * genflags.c (fatal): Likewise.
217 * genopinit.c (fatal, optabs, gen_insn): Likewise.
218 * genoutput.c (fatal, error, predicates): Likewise.
219 * genpeep.c (fatal): Likewise.
220 * genrecog.c (fatal, decision, pred_table, add_to_sequence,
221 write_tree_1, write_tree, change_state, copystr, indents): Likewise.
223 Thu Dec 17 18:21:49 1998 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
225 * configure.in (with-fast-fixincludes): Fix whitespace.
226 * configure: Rebuilt.
228 * fixincludes (c_asm.h): Wrap Digital UNIX V4.0B DEC C specific
229 asm() etc. function declarations in __DECC.
231 Thu Dec 17 13:57:23 1998 Nick Clifton <nickc@cygnus.com>
233 * expr.c (emit_move_insn_1): Only emit a clobber if the target
234 is a pseudo register.
236 Thu Dec 17 13:50:29 1998 Nick Clifton <nickc@cygnus.com>
238 * gcse.c: Include expr.h in order to get the prototype for
239 get_condition() which is used in delete_null_pointer_checks().
241 Thu Dec 17 15:58:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
243 * hwint.h: New file to consolidate HOST_WIDE_INT (etc) macros.
245 Thu Dec 17 12:31:12 1998 Jim Wilson <wilson@cygnus.com>
247 * Makefile.in (INTERNAL_CFLAGS): Add SCHED_CFLAGS.
248 (ALL_CFLAGS): Delete SCHED_CFLAGS.
250 1998-12-17 Vladimir N. Makarov <vmakarov@cygnus.com>
252 * config/i60/i960.md (extendqihi2): Fix typo (usage ',' instead of
255 1998-12-17 Michael Tiemann <tiemann@axon.cygnus.com>
257 * i960.md (extend*, zero_extend*): Don't generate rtl that looks
258 like (subreg:SI (reg:SI N) 0), because it's wrong, and it hides
259 optimizations from the combiner.
261 Thu Dec 17 08:27:03 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
263 * loop.c (combine_givs_used_by_other): Don't depend on n_times_set.
265 Wed Dec 16 17:30:35 1998 Nick Clifton <nickc@cygnus.com>
267 * toplev.c (main): Disable optimize_size if a specific
268 optimization level is requested. Always set optimization
269 level to 2 if -Os is specified.
271 Wed Dec 16 16:33:04 1998 Dave Brolley <brolley@cygnus.com>
273 * objc/lang-specs.h: Pass -MD, -MMD and -MG to cc1obj if configured with
275 * cpplib.c (cpp_start_read): If in_fname is not initialized, try to
276 initialize it using fname.
278 1998-12-16 Zack Weinberg <zack@rabi.phys.columbia.edu>
280 * cpplib.c (do_include): Treat #include_next in the
281 primary source file as #include plus warning. Treat
282 #include_next in a file included by absolute path as an
283 error. fp == CPP_NULL_BUFFER is a fatal inconsistency.
285 Wed Dec 16 12:28:54 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
287 * cccp.c: Don't define MIN/MAX anymore.
288 * cpplib.c: Likewise.
289 * machmode.h: Likewise.
290 * system.h: Provide definitions for MIN/MAX.
292 Tue Dec 15 23:47:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
294 * fix-header.c: Don't define xstrdup here.
296 Wed Dec 16 05:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
298 * loop.c (consec_sets_giv): New argument last_consec_insn.
299 (strength_reduce): Provide / use it.
301 Wed Dec 16 17:24:07 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
303 * loop.h (loop_info): New field 'vtop'.
304 * loop.c (check_dbra_loop): Use loop_info->vtop rather than
305 scanning loop for vtop.
306 * unroll.c (subtract_reg_term, find_common_reg_term): New functions.
307 (loop_iterations): Use them to determine if loop has a constant
308 number of iterations. Set loop_info->vtop. Don't subtract
309 common reg term from initial_value and final_value if have a
312 Tue Dec 15 13:49:55 1998 Jeffrey A Law (law@cygnus.com)
314 * mn10200.md (addsi3 expander): Use "nonmemory_operand" for operand 2.
316 * mn10300.md (bset, bclr): Operand 0 is a read/write operand.
318 * mn10200.md (abssf2, negsf2): New expanders.
320 * mn10300.md (absdf2, abssf2, negdf2, negsf2): New expanders.
322 Tue Dec 15 11:55:30 1998 Nick Clifton <nickc@cygnus.com>
324 * integrate.c (copy_rtx_and_substitute): If a SUBREG is
325 replaced by a CONCAT whoes components do not have the same
326 mode as the original SUBREG, use a new SUBREG to restore the
329 * emit-rtl.c (subreg_realpart_p): Cope with subregs containing
330 multiword complex values.
332 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
334 * cppalloc.c: Add xstrdup here.
335 * cpplib.h: Remove savestring prototype.
336 * cpplib.c: Remove savestring function. s/savestring/xstrdup/
338 * cppfiles.c: s/savestring/xstrdup/ throughout.
340 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
342 * cpplib.c: Make all directive handlers read their own
344 (struct directive): Remove last two arguments from FUNC
345 member prototype. Remove `command_reads_line' member
347 (directive_table): Remove initializations of
348 command_reads_line flag. Pretty-print.
349 (eval_if_expression, do_define, do_line, do_include,
350 do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
351 do_else, do_elif, do_sccs, do_assert, do_unassert,
352 do_warning): Take only two args.
354 (cpp_define): Call do_define with two args and the text to
355 define stuffed into a buffer.
356 (make_assertion): Call do_assert with two args.
357 (handle_directive): Call do_line with two args. Call
358 kt->func with two args. Remove command_reads_line
360 (do_define, do_undef, do_error, do_warning, do_pragma,
361 do_sccs): Read the rest of the line here.
362 (do_ident): Gobble rest of line, as cccp does.
363 (cpp_undef): New function.
364 (cpp_start_read): Call cpp_undef instead of do_undef.
366 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
368 * cpphash.h (union hash_value): Remove `keydef' member, add a
369 `struct hashnode *aschain' member for #assert.
371 * cpplib.c (struct tokenlist_list, struct
372 assertion_hashnode): Delete structure definitions.
373 (assertion_install, assertion_lookup, delete_assertion,
374 check_assertion, compare_token_lists, reverse_token_list,
375 read_token_list, free_token_list): Delete functions.
376 (parse_assertion): New function.
377 (cpp_cleanup): Don't destroy the assertion_hashtable.
379 (do_assert): Gut and rewrite. #assert foo (bar) places
380 entries for `#foo' and `#foo(bar)' in the macro hash table,
381 type T_ASSERT. The value union's `aschain' member is used
382 to chain all answers for a given predicate together.
383 (do_unassert): Also rewritten. Take an un-asserted
384 answer off the chain from its predicate and call
385 delete_macro on the hashnode, or walk a predicate chain
386 calling delete_macro on all the entries.
387 (cpp_read_check_assertion): Simply call parse_assertion to
388 get the canonical assertion name, and look that up in the
391 * cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
394 * cpphash.c (install): Use bcopy instead of an explicit loop
395 to copy the macro name.
397 * cppexp.c (cpp_lex): Convert the result of
398 cpp_read_check_assertion to a `struct operation' directly;
399 don't go through parse_number.
401 Tue Dec 15 18:27:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
403 * loop.h (struct induction): Delete times_used member.
404 * loop.c (n_times_set): Rename to set_in_loop. Changed all users.
405 (n_times_used): Rename to n_times_set. Changed all users.
406 (scan_loop): Free reg_single_usage before strength reduction.
407 (record_giv, combine_givs): Remove handling of times_used member.
408 (combine_givs_used_once): Rename to:
409 (combine_givs_used_by_other) . Changed all callers.
411 Tue Dec 15 01:45:26 1998 Jason Merrill <jason@yorick.cygnus.com>
413 * dwarf2out.c (gen_struct_or_union_type_die): Check AGGREGATE_TYPE_P
414 instead of TREE_CODE_CLASS == 't'.
415 (gen_type_die): Likewise.
416 (scope_die_for): Ignore FUNCTION_TYPE "scopes".
418 Mon Dec 14 16:23:27 1998 Jim Wilson <wilson@cygnus.com>
420 * real.c (endian): Disable last change unless
421 HOST_BITS_PER_WIDE_INT is greater than 32.
423 Mon Dec 14 17:13:36 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
425 * output.h (force_data_section): New prototype.
426 * varasm.c (force_data_section): New function to force the
427 data section, regardless of what in_section thinks.
428 * dwarf2out.c (output_call_frame_info): Call force_data_section
429 since varasm may not realize we've changes sections.
431 Mon Dec 14 14:09:34 1998 Nick Clifton <nickc@cygnus.com>
433 * reload1.c (reload): Delete REG_RETVAL and REG_LIBCALL notes
434 after completeing reload.
436 * rtl.texi: Document that REG_RETVAL and REG_LIBCALL are
437 deleted after reload.
439 Mon Dec 14 01:39:28 1998 Jeffrey A Law (law@cygnus.com)
441 * rtl.h (multiple_sets): Fix prototype.
442 * rtlanal.c (multiple_sets): Fix return type.
444 Sun Dec 13 12:43:58 PST 1998 Jeff Law (law@cygnus.com)
446 * version.c: Bump for snapshot.
448 Sun Dec 13 01:05:22 PST 1998 Jeff Law (law@cygnus.com)
450 * version.c: Bump for snapshot.
452 1998-12-13 Manfred Hollstein <manfred@s-direktnet.de>
454 * protoize.c (fputs): Wrap extern declaration in #ifndef fputs.
456 Sun Dec 13 00:24:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
458 * rtl.h (recompute_reg_usage): Add second argument.
459 * flow.c (recompute_reg_usage): Likewise.
460 * toplev.c (rest_of_compilation): Supply second argument to
463 * reload1.c (compute_use_by_pseudos): Allow reg_renumber[regno] < 0
466 Sat Dec 12 23:39:10 1998 Jeffrey A Law (law@cygnus.com)
468 * m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcpu32.
469 (MULTILIB_MATCHES): -m68332 now uses mcpu32 libraries, not m68000.
470 (MULTILIB_EXCEPTIONS): Don't build 68881 libraries for m68000,
473 * i386/next.h (ASM_OUTPUT_ALIGN): Use 0x90 for fill character.
475 * rtlanal.c (multiple_sets): New function.
476 * rtl.h (multiple_sets): Declare it.
477 * local-alloc.c (wipe_dead_reg): Use it.
478 * global.c (global_conflicts): Likewise.
480 Sat Dec 12 22:13:02 1998 Mark Mitchell <mark@markmitchell.com>
482 * global.c (record_conflicts): Don't use an array of shorts to
483 store an array of ints.
484 (global_conflicts): Likewise.
486 Sat Dec 12 16:49:24 1998 Richard Henderson <rth@cygnus.com>
488 * alpha.c (alpha_expand_block_move): mode_for_size expects
489 bits, not bytes. Infer extra alignment from addressof.
491 1998-12-11 Michael Meissner <meissner@cygnus.com>
493 * rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Put small data in the
494 .sbss section, not .sdata.
496 1998-12-11 Manfred Hollstein <manfred@s-direktnet.de>
498 * cccp.c: Do not #include <sys/stat.h> here; this is already done
500 * collect2.c: Likewise.
501 * cpplib.h: Likewise.
504 * getpwd.c: Likewise.
505 * protoize.c: Likewise.
506 * toplev.c: Likewise.
508 * cpplib.h (HOST_WIDE_INT): Get definition from "machmode.h"
509 and don't try to define it here.
510 * Makefile.in (cppmain.o): Depend on machmode.h.
511 (cpplib.o): Likewise.
512 (cpperror.o): Likewise.
513 (cppexp.o): Likewise.
514 (cppfiles.o): Likewise.
515 (cpphash.o): Likewise.
516 (cppalloc.o): Likewise.
517 (fix-header.o): Likewise.
518 (scan-decls.o): Likewise.
520 Fri Dec 11 11:02:49 1998 Stan Cox <scox@cygnus.com>
522 * sh.c (print_operand): lookup interrupt_handler attribute instead
523 of relying on static variable.
524 * (calc_live_regs): Likewise.
525 * (sh_pragma_insert_attributes): Create interrupt_handler
526 attribute if a pragma was specified
527 * (sh_valid_machine_decl_attribute): Don't set static flag.
528 * sh.h (PRAGMA_INSERT_ATTRIBUTES): New.
530 Fri Dec 11 12:56:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
532 * reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
533 to determine if a register is live at a jump destination.
534 Everything is dead at a BARRIER.
536 Thu Dec 10 16:02:06 1998 Jim Wilson <wilson@cygnus.com>
538 * cse.c (simplify_unary_operation): Sign-extend constants when
539 they have the most significant bit set for the target.
540 * real.c (endian): Sign-extend 32 bit output values on a 64 bit
542 * m32r/m32r.c (m32r_expand_prologue): Store pretend_size in
543 HOST_WIDE_INT temporary before negating it.
544 * m32r/m32r.md (movsi_insn+1): Use ~0xffff instead of 0xffff0000.
546 Thu Dec 10 15:05:59 1998 Dave Brolley <brolley@cygnus.com>
548 * objc/objc-act.c (lang_init_options): Enclose cpplib related code in
551 Thu Dec 10 13:39:46 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
553 * collect2.h: New header file for prototypes.
555 * Makefile.in (collect2.o, tlink.o): Depend on collect2.h.
557 * collect2.c: Include collect2.h.
560 Wed Dec 9 23:55:11 1998 Jeffrey A Law (law@cygnus.com)
562 * flow.c: Update some comments.
564 Wed Dec 9 15:29:26 1998 Dave Brolley <brolley@cygnus.com>
566 * objc/objc-act.c (cpp_initialized): Removed.
567 (lang_init_options): Initialize cpplib.
568 (lang_decode_option): Move initialization of cpplib to
570 * c-lang.c: (parse_options,parse_in): Added.
571 (lang_init_options): Initialized cpplib here.
572 * c-decl.c (parse_options,cpp_initialized): Removed.
573 (c_decode_option): Move initialization of cpplib to
576 Wed Dec 9 19:36:57 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
578 * reload1.c (reload_combine, reload_combine_note_store):
579 Make STORE_RUID always valid.
580 (reload_combine): Check if BASE is clobbered too early.
582 Wed Dec 9 09:53:58 1998 Nick Clifton <nickc@cygnus.com>
584 * reload.c (find_reloads): Display the insn that cannot be
587 Wed Dec 9 12:15:26 1998 Dave Brolley <brolley@cygnus.com>
589 * cccp.c (create_definition): Fix end of bufer logic.
591 Wed Dec 9 10:15:45 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
593 * except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
594 pointer parameters changed to use the PARAMS() macro.
596 Wed Dec 9 09:12:40 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
598 * except.h (struct handler_info): Add handler_number field.
599 * except.c (gen_exception_label): EH labels no longer need to be
600 on the permanent obstack.
601 (get_new_handler): Set the label number field.
602 (output_exception_table_entry): Regenerate handler label reference
603 from the label number field.
604 (init_eh): Remove a blank line.
605 * integrate.c (get_label_from_map): Labels no longer need to be
606 on the permanent obstack.
608 Tue Dec 8 22:04:33 1998 Jim Wilson <wilson@cygnus.com>
610 * i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
611 only when OUTER_CODE is SET.
613 Tue Dec 8 22:47:15 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
615 * loop.c (strength_reduce): If scan_start points to the loop exit
616 test, be wary of subversive use of gotos inside expression statements.
617 Don't set maybe_multiple for a backward jump that does not
618 include the label under consideration into its range.
619 * unroll.c (biv_total_increment): Make use of maybe_multiple field.
621 Tue Dec 8 22:33:18 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
623 * explow.c (plus_constant_wide): Don't immediately return with
624 result of recursive call.
626 Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
628 * eh-common.h (struct eh_context): Add table_index for rethrows.
630 * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
631 (SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
632 processed when inlined or unrolled (ie duplicated in some way).
634 * rtl.c (reg_note_name): Add strings for new reg_note enums.
636 * expr.h (rethrow_libfunc): New library decl.
638 * optabs.c (rethrow_libfunc): Initialize.
640 * except.h (struct eh_entry): Add new field 'rethrow_label'.
641 (new_eh_region_entry): No longer exported from except.c.
642 (duplicate_handlers): Renamed to duplicate_eh_handlers and
644 (rethrow_symbol_map, rethrow_used): New exported functions.
645 (eh_region_from_symbol): New exported function.
647 * except.c (create_rethrow_ref): New function to create a single
648 SYMBOL_REF for a rethrow region.
649 (push_eh_entry): Initialize a rethrow ref.
650 (func_eh_entry): Add a rethrow_label field.
651 (new_eh_region_entry): Make static, and initialize the rethrow entry.
652 (duplicate_eh_handlers): Create a new region, and remap labels/symbols.
653 (eh_region_from_symbol): Find an EH region based on its rethrow symbol.
654 (rethrow_symbol_map): Given a label map, maps a rethrow symbol for
655 a region into an appropriate new symbol.
656 (rethrow_used): Indicate whether a rethrow symbol has been referenced.
657 (expand_eh_region_end): Don't issue jump around code for new-exceptions.
658 (end_catch_handler): Emit a barrier for new-exceptions since
659 control can never drop through the end of a catch block.
660 (expand_end_all_catch): new-exceptions never fall through a catch
662 (expand_rethrow): use __rethrow routine for new exceptions.
663 (output_exception_table_entry): Generate rethrow labels, if needed.
664 (output_exception_table): Generate start and end rethrow labels.
665 (init_eh): Create rethrow symbols for beginning and end of table.
666 (scan_region): Don't eliminate EH regions which are the targets of
669 * flow.c (make_edges): Add different edges for rethrow calls,
670 identified by having the REG_EH_RETHROW reg label.
671 (delete_unreachable_blocks): Don't delete regions markers which are
672 the target of a rethrow.
674 * integrate.c (save_for_inline_eh_labelmap): New callback routine to
675 allow save_for_inline_copying to call duplicate_eh_handlers.
676 (save_for_inline_copying): Call duplicate_eh_handlers instead of
677 exposing internal details of exception regions.
678 (copy_for_inline): Check if SYMBOL_REFs need adjustment.
679 (expand_inline_function_eh_labelmap): New callback routine to
680 allow expand_inline_function to call duplicate_eh_handlers.
681 (expand_inline_function): Call duplicate_eh_handlers instead of
682 exposing internal details of exception regions.
683 (copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
686 * libgcc2.c (find_exception_handler): Generalize to enable it to
687 pick up processing where it left off last time for a rethrow.
688 (__unwinding_cleanup): New function. debug hook which is called before
689 unwinding when __throw finds there is nothing but cleanups left.
690 (throw_helper): Common parts of __throw extracted out for reuse.
691 (__throw): Common parts moved to throw_helper.
692 (__rethrow): New function for performing rethrows.
694 Tue Dec 8 13:11:04 1998 Jeffrey A Law (law@cygnus.com)
696 * reload1.c (current_function_decl): Tweak declaration.
698 Tue Dec 8 10:23:52 1998 Richard Henderson <rth@cygnus.com>
700 * c-decl.c (flag_isoc9x): Default off.
701 (c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
702 * cccp.c (print_help, main): Likewise.
703 * gcc.c (default_compilers): Update for -std=gnu*.
705 Tue Dec 8 01:14:46 1998 Jeffrey A Law (law@cygnus.com)
707 * Makefile.in (DEMANGLE_H): Change location to shared demangle.h.
708 * demangle.h: Deleted.
710 * reload1.c (current_function_decl): Declare.
712 Tue Dec 8 11:58:51 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
714 * cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.
716 Tue Dec 8 09:28:36 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
718 * dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.
720 1998-12-08 Ulrich Drepper <drepper@cygnus.com>
722 * configure.in: Test for availability of putc_unlocked, fputc_unlocked,
724 * configure: Rebuilt.
725 * system.h: If the *_unlocked functions are available use them
726 instead of the locked counterparts by defining macros.
727 * config.in: Regenerated.
729 Tue Dec 8 00:34:05 1998 Mike Stump <mrs@wrs.com>
731 * i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
732 wrong and should only be used for dump related things, not
733 debugging information, instead main_input_filename should be used.
734 Also, reuse output_file_directive if possible.
735 * i386/aix386ng.h (ASM_FILE_START): Likewise.
736 * i386/isc.h (ASM_FILE_START): Likewise.
737 * i386/win-nt.h (ASM_FILE_START): Likewise.
738 * i386/sun386.h (ASM_FILE_START): Likewise.
740 Mon Dec 7 23:56:28 1998 Robert Lipe <robertl@dgii.com>
742 * configure.in (mips*-*-linux*): Handle big and little endian
744 * configure: Rebuilt.
746 Mon Dec 7 23:14:51 1998 Mike Stump <mrs@wrs.com>
748 * emit-rtl.c: Fix typo.
750 Mon Dec 7 23:07:38 1998 Nathan Sidwell <nathan@acm.org>
752 * reload1.c (eliminate_regs): Don't do anything, if we're not
755 Mon Dec 7 15:27:09 1998 DJ Delorie <dj@cygnus.com>
757 * mips/mips.h (ENCODE_SECTION_INFO): Handle TARGET_EMBEDDED_DATA.
759 * mips/mips.c (mips_select_section): Add comment.
761 Mon Dec 7 17:55:06 1998 Mike Stump <mrs@wrs.com>
763 * cccp.c (ignore_escape_flag): Add support for \ as `natural'
764 characters in file names in #line to be consistent with #include
765 handling. We support escape prcessing in the # 1 "..." version of
766 the command. See also support in cp/lex.c.
767 (handle_directive): Likewise.
770 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
772 * cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
773 so it'll work on non-ASCII platforms. Always consider $ an
774 identifier character. Take no arguments.
775 (cpp_reader_init): Call initialize_char_syntax with no
777 (cpp_start_read): Don't call initialize_char_syntax again.
778 Clear is_idchar['$'] and is_idstart['$'] if not
779 opts->dollars_in_ident.
781 * cpplib.h (struct cpp_reader): Replace void *data element by
782 cpp_options *opts. Rearrange elements to make gdb printout
783 less annoying (put buffer stack at end).
784 (CPP_OPTIONS): Get rid of now-unnecessary cast.
786 * cppmain.c: s/data/opts/ when initializing cpp_reader
788 * c-decl.c: Likewise.
789 * objc/objc-act.c: Likewise.
790 * fix-header.c: Likewise.
792 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
794 * cpplib.h (struct cpp_buffer): Replace dir and dlen members
795 with a struct file_name_list pointer.
796 (struct cpp_reader): Add pointer to chain of `actual
797 directory' include searchpath entries.
798 (struct file_name_list): Add *alloc pointer for the sake of
799 the actual-directory chain.
801 Move definition of HOST_WIDE_INT here.
802 (cpp_parse_escape): Change prototype to match changes in
805 * cppfiles.c (actual_directory): New function.
806 (finclude): Use it to initialize the buffer's actual_dir
808 (find_include_file): We don't need to fix up max_include_len
811 * cpplib.c (do_include): Don't allocate a file_name_list on
812 the fly for current directory "" includes, use the one that's
813 been preallocated in pfile->buffer->actual_dir. Hoist out
814 duplicate code from the search_start selection logic.
815 (cpp_reader_init): Initialize pfile->actual_dirs.
817 Remove definition of HOST_WIDE_INT. Change calls
818 to cpp_parse_escape to match changes in cppexp.c (note
819 hardcoded MASK, which is safe since this is the source
822 * cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
823 to handle wide character constants in #if directives. The
824 function now returns a HOST_WIDE_INT, and takes a third
825 argument which is a binary mask for all legal values (0x00ff
826 for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.) Define
827 MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK. Change callers of
828 cpp_parse_escape to match. [Fixes c-torture/execute/widechar-1.c]
830 Mon Dec 7 15:38:25 1998 Dave Brolley <brolley@cygnus.com>
832 * gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.
834 Mon Dec 7 15:38:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
836 * c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
837 * cppalloc.c: Move function `xcalloc' from cpplib.c to here.
838 * cpplib.c: Move function `xcalloc' from here to cppalloc.c.
840 Mon Dec 7 11:30:49 1998 Nick Clifton <nickc@cygnus.com>
842 * final.c (output_asm_name): Use tabs to seperate comments from
845 Include instruction lengths (if defined) in output.
847 Mon Dec 7 10:53:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
849 * loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
850 in the loop_info structure.
852 Mon Dec 7 11:04:40 1998 Catherine Moore <clm@cygnus.com>
854 * configure.in: (arm*-*-ecos-elf): New target.
855 * configure: Regenerated.
856 * config/arm/elf.h (ASM_WEAKEN_LABEL): Define.
857 * config/arm/ecos-elf.h: New file.
858 * config/arm/unknown-elf.h (TARGET_VERSION): Check
861 Mon Dec 7 16:15:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
863 * sh.c (output_far_jump): Emit braf only for TARGET_SH2.
865 Sun Dec 6 04:19:45 PST 1998 Jeff Law (law@cygnus.com)
867 * version.c: Bump for snapshot.
869 Sun Dec 6 05:16:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
871 * loop.c (check_dbra_loop): New argument loop_info. Update fields
874 Sun Dec 6 03:40:13 PST 1998 Jeff Law (law@cygnus.com)
876 * version.c: Bump for snapshot.
878 Sun Dec 6 07:49:29 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
880 * gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
881 compressed reports are ok and preferred over URLs
883 Sun Dec 6 07:45:33 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
885 * invoke.texi (Warning Options): Soften the tone of -pedantic
887 Sun Dec 6 00:20:44 1998 H.J. Lu (hjl@gnu.org)
889 * print-rtl.c (print_rtx): Add prototype.
891 * unroll.c (iteration_info): Make it static.
893 Sun Dec 6 01:19:46 1998 Richard Henderson <rth@cygnus.com>
895 * alias.c (memrefs_conflict_p): A second ANDed address
896 disables the aligned address optimization.
898 Sat Dec 5 18:48:25 1998 Richard Henderson <rth@cygnus.com>
900 * alpha.c (alpha_emit_set_const_1): Fix parenthesis error
903 Sat Dec 5 15:14:52 1998 Jason Merrill <jason@yorick.cygnus.com>
905 * i960.h (BOOL_TYPE_SIZE): Define.
907 Sun Dec 6 00:28:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
909 * config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
910 from old valid_parallel_operands_4.
911 (valid_parallel_operands_4): Check that operands for 4 operand
912 parallel insns are valid, excluding load/store insns.
913 * config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
914 * config/c4x/c4x.md (*movqf_parallel, *movqi_parallel): Use
915 valid_parallel_load_store instead of valid_parallel_operands_4.
916 (*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber,
917 *negqf2_movqf_clobber, *absqi2_movqi_clobber,
918 *fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
919 *notqi_movqi_clobber): Use valid_parallel_operands_4.
920 (*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
921 *ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
922 *subqi3_movqi_clobber): Use valid_parallel_operands_5.
924 Sat Dec 5 23:52:01 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
926 * config/c4x/c4x.c (iteration_info): Delete extern.
928 Fri Dec 4 20:15:57 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
930 * tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.
932 * final.c (cleanup_subreg_operands): Delete some unused code.
934 * recog.h (MAX_RECOG_ALTERNATIVES): New macro.
935 (struct insn_alternative): New structure definition.
936 (recog_op_alt): Declare variable.
937 (preprocess_constraints): Declare function.
938 * recog.c (recog_op_alt): New variable.
939 (extract_insn): Verify number of alternatives is in range.
940 (preprocess_constraints): New function.
941 * reg-stack.c: Include recog.h.
942 (constrain_asm_operands): Delete.
943 (get_asm_operand_lengths): Delete.
944 (get_asm_operand_n_inputs): New function.
945 (record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
946 N_OUTPUTS args. All callers changed.
947 Compute number of inputs and outputs here by calling
948 get_asm_operand_n_inputs.
949 Instead of constrain_asm_operands, call extract_insn,
950 constrain_operands and preprocess_constaints. Use information
951 computed by these functions throughout.
952 (record_reg_life): Delete code that is unused due to changes in
954 (subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
955 N_INPUTS and N_OUTPUTS args. All callers changed.
956 Similar changes as in record_asm_reg_life.
957 (subst_stack_regs): Move n_operands declaration into the if statement
959 Delete code that is unused due to changes in subst_asm_stack_regs.
960 * stmt.c (expand_asm_operands): Verify number of alternatives is in
962 * Makefile.in (reg-stack.o): Depend on recog.h.
964 Fri Dec 4 02:23:24 1998 Jeffrey A Law (law@cygnus.com)
966 * except.c (set_exception_version_code): Argument is an "int".
968 Fri Dec 4 01:29:28 1998 Jeffrey A Law (law@cygnus.com)
970 * configure.in (hppa2*-*-*): Handle like hppa1.1-*-* for now.
971 * configure: Rebuilt.
973 Fri Dec 4 01:29:28 1998 Robert Lipe <robertl@dgii.com>
975 * configure.in (mipsel-*-linux*): New target.
976 * mips/linux.h: New file, based on other Linux targets.
978 Thu Dec 3 11:19:50 1998 Mike Stump <mrs@wrs.com>
980 * gthr-vxworks.h (__ehdtor): Fix memory leak. The delete hook
981 runs in the context of the deleter, not the deletee, so we must
982 use taskVarGet to find the correct memory to free.
983 (__gthread_key_create): Initialize the task
984 variable subsystem so that the task variable is still active when
985 the delete hook is run.
987 1998-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
989 * pdp11.h: Use optimize_size for space optimizations.
991 * pdp11.md: Likewise.
993 * pdp11.h (TARGET_40_PLUS): Fix typo.
995 Thu Dec 3 11:48:32 1998 Jeffrey A Law (law@cygnus.com)
997 * local-alloc.c (block_alloc): Slightly retune heuristic to widen
1000 Thu Dec 3 22:30:18 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1002 * alias.c (addr_side_effect_eval): New function.
1003 (memrefs_conflict_p): Use it.
1004 * rtl.h (addr_side_effect_eval): Prototype it.
1006 1998-12-02 Joseph S. Myers <jsm28@cam.ac.uk>
1008 * pdp11.md (extendsfdf2): Fix mode mismatch in SET.
1010 Wed Dec 2 11:23:07 1998 Jim Wilson <wilson@cygnus.com>
1012 * reload.c (find_reloads): When force const to memory, put result
1013 in substed_operand not *recog_operand_loc.
1015 1998-12-02 Ulrich Drepper <drepper@cygnus.com>
1017 * c-lex.c: Fix indentation from last patch.
1018 Remove trailing whitespace.
1021 Wed Dec 2 10:11:12 1998 Jeffrey A Law (law@cygnus.com)
1023 * flow.c (delete_block): Call set_last_insn after we have reset
1024 NEXT_INSN (kept_tail).
1026 Wed Dec 2 00:47:31 1998 Jeffrey A Law (law@cygnus.com)
1028 * mips.md (trap_if): Use "$0" for the value zero.
1030 Tue Dec 1 20:49:49 1998 Ulrich Drepper <drepper@cygnus.com>
1031 Stephen L Moshier <moshier@world.std.com>
1032 Richard Henderson <rth@cygnus.com>
1034 * c-common.c (declare_function_name): Declare predefinied variable
1037 * c-decl.c (flag_isoc9x): Set to 1 by default.
1038 (c_decode_option): Handle -std= option. Remove -flang-isoc9x.
1039 (grokdeclarator): Always emit warning about implicit int for ISO C 9x.
1041 * c-parse.in: Allow constructors in ISO C 9x.
1042 Rewrite designator list handling.
1043 Allow [*] parameters.
1044 Don't warn about comma at end of enum definition for ISO C 9x.
1046 * cccp.c (c9x): New variable.
1047 (rest_extension): New variable.
1048 (print_help): Document new -std= option.
1049 (main): Recognize -std= option. Set c9x appropriately.
1050 (create_definition): Recognize ISO C 9x vararg macros.
1052 * gcc.c (default_compilers): Adjust specs for -std options.
1053 (option_map): Add --std.
1054 (display_help): Document -std.
1056 * toplev.c (documented_lang_options): Add -std and remove
1059 * c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
1060 or REAL_VALUE_HTOF based on base of the constants.
1061 * fold-const.c (real_hex_to_f): New function. Replacement function
1062 for hex FP conversion if REAL_ARITHMETIC is not defined.
1063 * real.c (asctoeg): Add handling of hex FP constants.
1064 * real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
1067 Tue Dec 1 16:45:49 1998 Stan Cox <scox@cygnus.com>
1069 * mips.md (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
1070 -mcheck-range-division/-mcheck-zero-division checking. Avoid as macro
1071 expansion. Use hi/lo as destination register.
1073 (divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
1074 umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
1075 Avoid as macro expansion. Use hi/lo as destination register.
1077 * mips.h (MASK_CHECK_RANGE_DIV): New.
1078 (MASK_NO_CHECK_ZERO_DIV): New.
1079 (ELIMINABLE_REGS): Added GP_REG_FIRST + 31.
1080 (CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): Allow for getting
1081 return address for leaf functions out of r31 to support
1082 builtin_return_address.
1084 Tue Dec 1 15:03:30 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1086 * jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
1087 NEXT_INSN(x) to check insn x.
1089 Tue Dec 1 15:20:44 1998 Jeffrey A Law (law@cygnus.com)
1091 * flow.c (delete_block): Call set_last_insn if we end up deleting the
1092 last insn in the rtl chain.
1094 * reload1.c (reload): Do not set reload_completed or split insns
1096 * toplev.c (rest_of_compilation): Set reload_completed after
1097 reload returns. Split insns after reload_cse has run.
1099 Tue Dec 1 11:55:04 1998 Richard Henderson <rth@cygnus.com>
1101 * final.c (final_scan_insn): Abort if block_depth falls below 0.
1103 Tue Dec 1 10:23:16 1998 Nick Clifton <nickc@cygnus.com>
1105 * config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.
1107 Tue Dec 1 10:22:18 1998 Nick Clifton <nickc@cygnus.com>
1109 * config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
1110 use of user-label_prefix.
1112 Tue Dec 1 17:58:26 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1114 * reload1.c (emit_reload_insns): Clear spill_reg_store
1115 when doing a new non-inherited reload from the same pseudo.
1117 * local-alloc.c (function_invariant_p): New function.
1118 (update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
1119 to decide if an equivalence should be recorded.
1120 * reload1.c (num_eliminable_invariants): New static variable.
1121 (reload): Set it. Use function_invariant_p instead of CONSTANT_P
1122 to decide if an equivalence should be recorded.
1124 (calculate_needs_all_insns): Skip insns that only set an equivalence.
1125 Take num_eliminable_invariants into account when deciding
1126 if register elimination should be done.
1127 (reload_as_needed): Take num_eliminable_invariants into account
1128 when deciding if register elimination should be done.
1129 (eliminate_regs): Handle non-constant reg_equiv_constant.
1130 * rtl.h (function_invariant_p): Declare.
1132 Mon Nov 30 02:00:08 PST 1998 Jeff Law (law@cygnus.com)
1134 * version.c: Bump for snapshot.
1136 Mon Nov 30 00:42:59 PST 1998 Jeff Law (law@cygnus.com)
1138 * version.c: Bump for snapshot.
1140 Sun Nov 29 22:59:40 1998 Jason Merrill <jason@yorick.cygnus.com>
1142 * except.c (add_new_handler): Complain about additional handlers
1143 after one that catches everything.
1145 Sat Nov 28 10:56:32 1998 Jeffrey A Law (law@cygnus.com)
1147 * configure.in (alpha*-*-netbsd): Fix typo.
1148 * configure: Rebuilt.
1150 Fri Nov 27 12:28:56 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1152 * system.h: Include libiberty.h.
1154 * c-aux-info.c: Remove prototypes for concat/concat3. Change
1155 function `concat' from fixed parameters to variable parameters,
1156 as is done in libiberty. All callers of concat/concat3
1157 changed to use the new `concat' with variable args.
1159 * cccp.c: Remove things made redundant by libiberty.h and/or
1160 conform to libiberty standards.
1162 * collect2.c: Likewise.
1163 * config/1750a/1750a.h: Likewise.
1164 * cppalloc.c: Likewise.
1165 * cppexp.c: Likewise.
1166 * cppfiles.c: Likewise.
1167 * cpphash.c: Likewise.
1168 * cpplib.c: Likewise.
1169 * dyn-string.c: Likewise.
1170 * fix-header.c: Likewise.
1173 * genattr.c: Likewise.
1174 * genattrtab.c: Likewise.
1175 * gencheck.c: Likewise.
1176 * gencodes.c: Likewise.
1177 * genconfig.c: Likewise.
1178 * genemit.c: Likewise.
1179 * genextract.c: Likewise.
1180 * genflags.c: Likewise.
1181 * gengenrtl.c: Likewise.
1182 * genopinit.c: Likewise.
1183 * genoutput.c: Likewise.
1184 * genpeep.c: Likewise.
1185 * genrecog.c: Likewise.
1186 * getpwd.c: Likewise.
1187 * halfpic.c: Likewise.
1189 * mips-tdump.c: Likewise. Wrap malloc/realloc/calloc prototypes
1190 in NEED_DECLARATION_* macros.
1192 * mips-tfile.c: Remove things made redundant by libiberty.h and/or
1193 conform to libiberty standards.
1194 (fatal): Fix const-ification of variable `format' in
1195 !ANSI_PROTOTYPES case.
1197 * prefix.c: Remove things made redundant by libiberty.h and/or
1198 conform to libiberty standards.
1200 * print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
1201 conflicting with function `spaces' from libiberty.
1203 * profile.c: Remove things made redundant by libiberty.h and/or
1204 conform to libiberty standards.
1205 * protoize.c: Likewise.
1208 * tlink.c: Likewise.
1209 * toplev.c: Likewise.
1210 * toplev.h: Likewise.
1213 Thu Nov 26 08:38:06 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1215 * cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.
1217 Thu Nov 26 23:45:37 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1219 * README.C4X: Updated URLs.
1220 * config/c4x/c4x.c (c4x_address_conflict): Fix typo.
1221 (valid_parallel_operands_5): Remove unused variable.
1223 Thu Nov 26 23:40:03 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1225 * config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.
1227 1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
1229 * Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
1230 which can be configured.
1231 (LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
1232 (Makefile): Pass actual LANGUAGES through the environment when
1234 (cstamp-h): Likewise.
1235 (config.status): Likewise.
1237 * configure.in (enable_languages): Add new configuration parameter
1238 "--enable-languages=lang1,lang2,...".
1239 (${srcdir}/*/config-lang.in): Change handling to configure only
1240 those directories, that the user might have enabled; default to
1241 "all" existing languages.
1242 * configure: Regenerate.
1244 Thu Nov 26 00:19:19 1998 Richard Henderson <rth@cygnus.com>
1246 * rtlanal.c (regs_set_between_p): New function.
1247 * rtl.h (regs_set_between_p): Prototype it.
1248 * jump.c (jump_optimize): Use it instead of modified_between_p
1249 in the Sep 2 change.
1251 Wed Nov 25 23:32:02 1998 Ian Dall <Ian.Dall@dsto.defence.gov.au>
1252 Matthias Pfaller <leo@dachau.marco.de>
1254 * invoke.texi (Option Summary, NS32K Options): add description
1255 of NS32K specific options.
1257 * ns32k.md (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
1258 fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
1259 fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
1260 negdf2, absdf2): Use l instead of f since the double class and
1261 float class are no longer the same.
1262 (cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
1263 divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
1264 ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
1265 use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
1267 (cmpsi, cmphi, cmpqi): use general_operand instead of
1268 non_immediate_operand. Removes erroneous assumption that can't
1270 (movsf, movsi, movhi, movqi,...): New register numbering scheme.
1271 (movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
1273 (movstrsi, movstrsi1, movstrsi2): completely new block move
1275 (...): Patterns to exploit multiply-add instructions.
1276 (udivmodsi4, udivmodsi_internal4, udivmodhi4,
1277 udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): new
1278 patterns to exploit extended divide insns.
1279 (udivsi3, udivhi3, udivqi3): remove since superceded by udivmodsi
1282 * ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
1283 float return values as well as simple scalar floats.
1284 (TARGET_32381, TARGET_MULT_ADD, TARGET_SWITCHES):
1285 support new flag to denote 32381 fpu.
1286 (OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
1287 (CONDITIONAL_REGISTER_USAGE): disable extra 32381 registers if not
1289 (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS,
1290 REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES, OUTPUT_REGISTER_NAMES,
1291 REG_ALLOC_ORDER, DBX_REGISTER_NUMBER, R0_REGNUM, F0_REGNUM,
1292 L1_REGNUM, STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
1293 LONG_FP_REGS_P, ARG_POINTER_REGNUM, reg_class, REG_CLASS_NAMES,
1294 REG_CLASS_CONTENTS, SUBSET_P,REGNO_REG_CLASS,
1295 REG_CLASS_FROM_LETTER, FUNCTION_PROLOGUE, FUNCTION_EPILOGUE,
1296 REGNO_OK_FOR_INDEX_P, FP_REG_P, REG_OK_FOR_INDEX_P,
1297 REG_OK_FOR_BASE_P, MEM_REG): new register scheme to include 32381
1298 fpu registers and special register classes for new 32381
1299 instructions dotf and polyf.
1300 (MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
1302 (INCOMING_RETURN_ADDR_RTX, RETURN_ADDR_RTX,
1303 INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
1305 (SMALL_REGISTER_CLASSES): Make dependant on -mmult-add option.
1306 (MOVE_RATIO): Set to zero because of smart movstrsi implimentation.
1307 (REGISTER_MOVE_COST): move code to register_move_cost function for
1308 ease of coding and debugging.
1309 (CLASS_LIKELY_SPILLED_P): Under new register scheme class
1310 LONG_FLOAT_REGO is likely spilled but not caught by default
1312 (CONSTANT_ADDRESS_P, CONSTANT_ADDRESS_NO_LABEL_P): use macro
1313 instead of hard coded numbers in range check.
1314 (ASM_OUTPUT_LABELREF_AS_INT): delete since unused.
1315 (...): Add prototypes for functions in ns32k.c but disable because
1316 of problems when ns32k.h is included in machine independant files.
1318 * ns32k.c: include "system.h", "tree.h", "expr.h", "flags.h".
1319 (ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
1320 hard_regno_mode_ok, secondary_reload_class,
1321 print_operand, print_operand_address): new register scheme to
1322 include 32381 fpu registers and special register classes for new
1323 32381 instructions dotf and polyf.
1324 (gen_indexed_expr): Make static to keep namespace clean.
1325 (check_reg): remove since never called.
1326 (move_tail, expand_block_move): helper functions for "movstrsi"
1328 (register_move_cost): Helper function for REGISTER_MOVE_COST macro.
1329 Increase cost of moves which go via memory.
1330 * netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
1331 (CPP_PREDEFINES): nolonger predefine "unix".
1333 * ns32k.md (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
1334 Remove erroneous %$. print_operand() can work out from the rtx is
1335 an immediate prefix is required.
1337 * ns32k.h (RETURN_POPS_ARGS, VALID_MACHINE_DECL_ATTRIBUTE,
1338 VALID_MACHINE_TYPE_ATTRIBUTE, COMP_TYPE_ATTRIBUTES,
1339 SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
1341 (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST): Correct handling of
1344 * ns32k.c (symbolic_reference_mentioned_p, print_operand):
1345 Correct handling of pic operands.
1346 (ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
1347 ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
1348 -mrtd calling convention.
1350 Wed Nov 25 23:42:20 1998 Tom Tromey <tromey@cygnus.com>
1352 * gcc.c (option_map): Recognize --output-class-directory.
1354 Thu Nov 26 18:26:21 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1356 * loop.h (precondition_loop_p): Added new mode argument.
1357 * unroll.c (precondition_loop_p): Likewise.
1358 (approx_final_value): Function deleted and subsumed
1359 into loop_iterations.
1360 (loop_find_equiv_value): New function.
1361 (loop_iterations): Use loop_find_equiv_value to find increments
1362 too large to be immediate constants. Also use it to find terms
1363 common to initial and final iteration values that can be removed.
1365 Thu Nov 26 18:05:04 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1367 * loop.h (struct loop_info): Define new structure.
1368 (precondition_loop_p): Added prototype.
1369 (unroll_loop): Added new argument loop_info to prototype.
1370 (final_biv_value, final_giv_value): Added new argument n_iterations
1372 * loop.c (strength_reduce): Declare new structure loop_iteration_info
1373 and new pointer loop_info.
1374 (loop_n_iterations): Replace global variable by element in
1375 loop_info structure.
1376 (check_final_value): New argument n_iterations.
1377 (insert_bct): New argument loop_info.
1378 (loop_unroll_factor): Replace global array by element in
1379 loop_info structure.
1380 (loop_optimize): Remove code to allocate and initialise
1381 loop_unroll_factor_array.
1382 * unroll.c (precondition_loop_p): No longer static since
1383 used by branch on count optimization.
1384 (precondition_loop_p, unroll_loop): New argument loop_info.
1385 (final_biv_value, final_giv_value, find_splittable_regs): New
1386 argument n_iterations.
1387 (loop_iteration_var, loop_initial_value, loop_increment,
1388 loop_final_value, loop_comparison_code, loop_unroll_factor):
1389 Replaced global variables by loop_info structure.
1390 (loop_unroll_factor): Replace global array by element in
1391 loop_info structure.
1393 Thu Nov 26 17:49:29 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1395 * loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
1398 * unroll.c (precondition_loop_p): Return loop_initial_value
1399 for initial_value instead of loop_iteration_var.
1401 Thu Nov 26 17:15:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1403 * config/c4x/c4x.md: Fix minor formatting problems. Update docs.
1404 (*b, *b_rev, *b_noov, *b_noov_rev, *db,
1405 decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
1406 to output the instruction sequences.
1408 (rptb_top): Provide alternatives to use any register or memory
1410 (rptb_end): Emit use of operands rather than assigning them
1411 explicitly to the RS and RE registers.
1413 Thu Nov 26 16:37:59 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1415 * config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
1416 c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
1417 c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
1418 c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after,
1419 c4x_merge_notes, c4x_parallel_process,
1420 c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
1421 c4x_combine_parallel): Delete.
1423 Thu Nov 26 15:16:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1425 * config/c4x/c4x.c: (c4x_override_options): For compatibility
1426 with old target options clear flag_branch_on_count_reg if
1427 -mno-rptb specified and set flag_argument_alias is -mno-aliases
1429 (c4x_output_cbranch): Handle a sequence of insns rather than a
1431 (c4x_rptb_insert): Do not emit a RPTB insn if the RC register
1432 has not been allocated as the loop counter.
1433 (c4x_address_conflict): Do not allow two volatile memory references.
1434 (valid_parallel_operands_4, valid_parallel_operands_5,
1435 valid_parallel_operands_6): Reject pattern if the register destination
1436 of the first set is used as part of an address in the second set.
1438 Thu Nov 26 14:56:32 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1440 * config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
1441 (TARGET_SMALL_REG_CLASS): Set to 0 so that SMALL_REGISTER_CLASSES
1442 is no longer enabled if PARALLEL_MPY_FLAG set.
1443 (HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
1444 (REG_CLASS_CONTENTS): Add braces around initializers.
1445 (HAVE_MULTIPLE_PACK): Define.
1446 (ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with
1447 REAL_VALUE_TO_DECIMAL.
1448 (ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with
1449 REAL_VALUE_TO_DECIMAL.
1450 (ar0_reg_operand): Add prototype.
1451 (ar0_mem_operand): Likewise.
1452 (ar1_reg_operand): Likewise.
1453 (ar1_mem_operand): Likewise.
1454 (ar2_reg_operand): Likewise.
1455 (ar2_mem_operand): Likewise.
1456 (ar3_reg_operand): Likewise.
1457 (ar3_mem_operand): Likewise.
1458 (ar4_reg_operand): Likewise.
1459 (ar4_mem_operand): Likewise.
1460 (ar5_reg_operand): Likewise.
1461 (ar5_mem_operand): Likewise.
1462 (ar6_reg_operand): Likewise.
1463 (ar6_mem_operand): Likewise.
1464 (ar7_reg_operand): Likewise.
1465 (ar7_mem_operand): Likewise.
1466 (ir0_reg_operand): Likewise.
1467 (ir0_mem_operand): Likewise.
1468 (ir1_reg_operand): Likewise.
1469 (ir1_mem_operand): Likewise.
1470 (group1_reg_operand): Likewise.
1471 (group1_mem_operand): Likewise.
1472 (ir1_reg_operand): Likewise.
1473 (arx_reg_operand): Likewise.
1474 (not_rc_reg): Likewise.
1475 (not_modify_reg): Likewise.
1476 (c4x_group1_reg_operand): Remove prototype.
1477 (c4x_group1_mem_operand): Likewise.
1478 (c4x_arx_reg_operand): Likewise.
1480 Wed Nov 25 19:02:55 1998 (Stephen L Moshier) <moshier@world.std.com>
1482 * emit-rtl.c (gen_lowpart_common): Remove earlier change.
1483 * real.c (make_nan): Make SIGN arg actually specify the sign bit.
1485 Thu Nov 26 14:12:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1487 * config/c4x/c4x.md (addqi3): Emit addqi3_noclobber pattern
1490 Wed Nov 25 22:05:28 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1492 * config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
1493 unless FMOVD_WORKS is defined.
1495 Wed Nov 25 20:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1497 * regclass.c (init_reg_sets): Move code that calculates tables
1498 dependent on reg_class_contents from here...
1499 (init_reg_sets_1): To here.
1501 Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1503 * cpplib.h: Delete struct import_file. Add ihash element to
1504 struct cpp_buffer. Delete dont_repeat_files and
1505 import_hash_table elements from cpp_reader; change
1506 all_include_files to a hash table. Delete all foobar_include
1507 / last_foobar_include elements from struct cpp_options; put
1508 back four such: quote_include, bracket_include,
1509 system_include, after_include. Redo struct file_name_list
1510 completely. Add new structure type include_hash. Add
1511 prototypes for merge_include_chains and include_hash. Change
1512 prototypes for finclude, find_include_file, and
1513 append_include_chain to match changes below.
1515 * cppfiles.c (simplify_pathname, include_hash,
1516 remap_filename, merge_include_chains): New functions.
1517 (add_import, lookup_import, open_include_file): Removed.
1518 (INO_T_EQ): Define this (copied from cccp.c).
1519 (hack_vms_include_specification): Remove all calls and #if 0
1520 out the definition. It was being called incorrectly and at
1521 the wrong times. Until a VMSie can look at this, it's better
1522 to not pretend to support it.
1523 (append_include_chain): Change calling convention; now takes
1524 only one directory at a time, and sets up the data structure
1526 (redundant_include_p): Rewritten - this is now used for all
1527 include redundancy, whether by #ifndef, #import, or #pragma
1528 once. Looks up things in the include hash table.
1529 (file_cleanup): Decrement pfile->system_include_depth here if
1531 (find_include_file): Calling convention changed; now passes
1532 around a struct include_hash instead of 3 separate parameters.
1533 Guts ripped out and replaced with new include_hash mechanism.
1534 (finclude): Calling convention changed as for
1535 find_include_file. Error exits pulled out-of-line. Reformat.
1536 (safe_read): Return a long, not an int.
1537 (deps_output): Don't recurse.
1539 * cpplib.c (is_system_include): Deleted.
1540 (path_include): Fix up call to append_include_chain.
1541 (do_include): Fix up calls to find_include_file and finclude.
1542 Clean up dependency output a bit. Shorten obnoxiously lengthy
1543 #import warning message. Don't decrement
1544 pfile->system_include_depth here.
1545 (do_pragma): Understand the include_hash structure. Reformat.
1546 (do_endif): Correct handling of control macros. Understand
1548 (cpp_start_read): Fix up calls to finclude. Call
1549 merge_include_chains.
1550 (cpp_handle_option): Fix up calls to append_include_chain.
1551 Understand the four partial include chains.
1552 (cpp_finish): Add debugging code (#if 0-ed out) for the
1554 (cpp_cleanup): Free the include_hash, not the import hash and
1555 the all_include and dont_repeat lists which no longer exist.
1557 Wed Nov 25 11:26:19 1998 Jeffrey A Law (law@cygnus.com)
1559 * toplev.c (no_new_pseudos): Define.
1560 (rest_of_compilation): Set no_new_pseudos as needed.
1561 * emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
1562 if no_new_pseudos is set.
1563 * rtl.h (no_new_pseudos): Declare it.
1564 * reload1.c (reload): Update comments.
1565 * md.texi: Corresponding changes.
1567 Wed Nov 25 11:26:17 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1569 * reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
1570 (choose_reload_regs): Rename it here as well. When computing it,
1571 also merge in used hardregs.
1573 1998-11-25 07:51 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
1575 * gcc.c: Split out Objective-C specs to...
1576 * objc/lang-specs.h: here. (New file.) Make the specs cpplib
1579 * c-lex.c (init_parse): Always initialize the filename global.
1580 * objc/objc-act.c (lang_init): Always call check_newline at
1583 Wed Nov 25 00:48:29 1998 Graham <grahams@rcp.co.uk>
1585 * reload1.c (reload): Remove unused variable.
1586 (reload_reg_free_for_value_p): Add missing parameter definition.
1588 * jump.c (jump_optimize): Remove unused variable.
1590 Wed Nov 25 00:07:11 1998 Jeffrey A Law (law@cygnus.com)
1592 * Makefile.in (graph.o): Depend on $(RTL_H), not rtl.h.
1594 * cse.c (fold_rtx): Make autoincrement addressing mode tests be
1596 * expr.c (move_by_pieces): Similarly.
1597 (move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
1598 * flow.c (find_auto_inc): Similarly.
1599 (try_pre_increment): Similarly.
1600 * loop.c (strength_reduce): Similarly.
1601 * regclass.c (auto_inc_dec_reg_p): Similarly.
1602 * regmove.c (try_auto_increment): Similarly.
1603 (fixup_match_1): Similarly.
1604 * rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
1605 (HAVE_PRE_DECREMENT): Similarly.
1606 (HAVE_POST_INCREMENT, HAVE_POST_DECREMENT): Similarly.
1607 * Corresponding changes to all target header files.
1608 * tm.texi: Update docs for autoinc addressing modes.
1610 Tue Nov 24 20:24:59 1998 Jim Wilson <wilson@cygnus.com>
1612 * configure.in (m68020-*-elf*, m68k-*-elf*): New targets.
1613 * configure: Rebuild.
1614 * config/elfos.h: New file.
1615 * config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
1616 config/m68k/t-m68kelf: New file.
1618 Tue Nov 24 13:40:06 1998 Jeffrey A Law (law@cygnus.com)
1620 * Makefile.in (HOST_AR): Define.
1621 (HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Similarly.
1622 (libcpp.a): Use the host tools explicitly.
1623 (STAGESTUFF): Add libcpp.a.
1625 Tue Nov 24 09:33:49 1998 Nick Clifton <nickc@cygnus.com>
1627 * config/m32r/m32r.md (movstrsi_internal): Describe changes made
1628 to source and destination registers.
1630 Mon Nov 23 20:28:02 1998 Mike Stump <mrs@wrs.com>
1632 * libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
1633 The strategy we now use is to pre allocate the top_elt along
1634 with the EH context so that each thread has its own top_elt.
1635 This is necessary as the dynmanic cleanup chain is used on the
1636 top element of the stack and each thread MUST have its own.
1637 (eh_context_static): Likewise.
1638 (new_eh_context): Likewise.
1639 (__sjthrow): Likewise.
1641 Mon Nov 23 20:25:03 1998 Jason Merrill <jason@yorick.cygnus.com>
1643 * i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
1644 * i386.md (prologue_get_pc): Remove unused variable.
1646 Mon Nov 23 17:05:40 1998 Geoffrey Noer <noer@cygnus.com>
1648 * i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.
1650 Mon Nov 23 16:40:00 1998 Ulrich Drepper <drepper@cygnus.com>
1652 * Makefile.in (OBJS): Add graph.o
1653 (graph.o): New dependency list.
1654 * flags.h: Declare dump_for_graph and define graph_dump_types type.
1655 * print-rtl.c (dump_for_graph): Define new variable.
1656 (print_rtx): Rewrite to allow use in graph dumping functions.
1657 * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
1658 finish_graph_dump_file.
1659 Define graph_dump_format.
1660 (compile_file): If graph dumping is enabled also clear these files.
1661 Finish graph dump files.
1662 (rest_of_compilation): Also dump graph information if enabled.
1663 (main): Recognize -dv to enabled VCG based graph dumping.
1664 * graph.c: New file. Graph dumping functions.
1666 Mon Nov 23 16:39:04 1998 Richard Henderson <rth@cygnus.com>
1668 * configure.in: Look for <sys/stat.h>.
1669 * system.h: Include it before substitute S_ISREG definitions.
1671 Mon Nov 23 17:40:37 1998 Gavin Romig-Koch <gavin@cygnus.com>
1673 * config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
1674 * config/mips/iris6.h: Same.
1675 * config/mips/mips.md: Same.
1676 * config/mips/mips.c: Same; also add "-mabi=o64" option.
1677 * config/mips/mips.h: Same; also define ABI_O64.
1679 Mon Nov 23 17:02:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1681 * configure.in: Use AC_PREREQ(2.12.1).
1683 Mon Nov 23 10:16:38 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
1685 * cccp.c (S_ISREG, S_ISDIR): Delete defines.
1686 * cpplib.c, gcc.c: Likewise.
1687 * system.h (S_ISREG, S_ISDIR): Define if not already defined.
1689 Mon Nov 23 09:53:44 1998 Richard Henderson <rth@cygnus.com>
1691 * local-alloc.c (local_alloc): Use malloc not alloca for
1692 reg_qty, reg_offset, ref_next_in_qty.
1694 Mon Nov 23 16:46:46 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1696 * caller-save.c (insert_one_insn): Initialize the live_before and
1697 live_after register sets.
1701 * config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
1702 (___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
1703 * sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
1704 (fp_reg_names, assembler_dialect): New variables.
1705 (print_operand_address): Handle SUBREGs.
1706 (print_operand): Added 'o' case.
1707 Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
1708 Name of FP registers depends on mode.
1709 (expand_block_move): Emit different code for SH4 hardware.
1710 (prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
1711 (from_compare): Likewise.
1712 (add_constant): New argument last_value. Changed all callers.
1713 (find_barrier): Don't try HImode load for FPUL_REG.
1714 (machine_dependent_reorg): Likewise.
1715 (sfunc_uses_reg): A CLOBBER cannot be the address register use.
1716 (gen_far_branch): Emit a barrier after the new jump.
1717 (barrier_align): Don't trust instruction lengths before
1719 (machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
1720 Use auto-inc addressing for fp registers if doubles need to
1721 be loaded in two steps.
1722 Set sh_flag_remove_dead_before_cse.
1723 (push): Support for TARGET_FMOVD. Use gen_push_fpul for fpul.
1724 (pop): Support for TARGET_FMOVD. Use gen_pop_fpul for fpul.
1725 (calc_live_regs): Support for TARGET_FMOVD. Don't save FPSCR.
1726 Support for FIRST_XD_REG .. LAST_XD_REG.
1727 (sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
1728 (sh_expand_epilogue): Likewise.
1729 (sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
1730 (initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
1731 (arith_reg_operand): FPUL_REG is OK for SH4.
1732 (fp_arith_reg_operand, fp_extended_operand) New functions.
1733 (tertiary_reload_operand, fpscr_operand): Likewise.
1734 (commutative_float_operator, noncommutative_float_operator): Likewise.
1735 (binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
1736 (emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
1737 (expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
1738 (emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
1739 * sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
1740 (CONDITIONAL_REGISTER_USAGE): Likewise.
1741 (HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
1742 (TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
1743 (TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
1744 (target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
1745 (OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
1746 to -1 and sh_flag_remove_dead_before_cse to 1.
1747 (ASSEMBLER_DIALECT): Define to assembler_dialect.
1748 (assembler_dialect, fp_reg_names): Declare.
1749 (OVERRIDE_OPTIONS): Add code for TARGET_SH4.
1750 Hide names of registers that are not accessible.
1751 (CACHE_LOG): Take TARGET_CACHE32 into account.
1752 (LOOP_ALIGN): Take TARGET_HARWARD into account.
1753 (FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
1754 (FIRST_PSEUDO_REGISTER: Now 49.
1755 (FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
1756 (HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
1757 (HARD_REGNO_MODE_OK): Update.
1758 (enum reg_class): Add DF_REGS and FPSCR_REGS.
1759 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
1760 (SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
1761 (CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
1762 (NPARM_REGS): Eight floating point parameter registers on SH4.
1763 (BASE_RETURN_VALUE_REG): SH4 also passes double values
1764 in floating point registers.
1765 (GET_SH_ARG_CLASS) Likewise.
1766 Complex float types are also returned in float registers.
1767 (BASE_ARG_REG): Complex float types are also passes in float registers.
1768 (FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
1769 (LIBCALL_VALUE): Remove trailing semicolon.
1770 (ROUND_REG): Round when double precision value is passed in floating
1772 (FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
1773 passed on the stack.
1774 (FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
1775 (FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
1776 (TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
1777 (INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
1778 (MODE_DISP_OK_8): Not for SH4 DFmode.
1779 (GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
1780 Allow indexed addressing for PSImode after reload.
1781 (LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
1782 (LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
1783 Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
1784 (DOUBLE_TYPE_SIZE): 64 for SH4.
1785 (RTX_COSTS): Add PLUS case.
1786 Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
1787 (REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
1788 MAC_REGS, PR_REGS, DF_REGS.
1789 (REGISTER_NAMES): Use fp_reg_names.
1790 (enum processor_type): Add PROCESSOR_SH4.
1791 (sh_flag_remove_dead_before_cse): Declare.
1792 (rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
1793 (PREDICATE_CODES): Add binary_float_operator,
1794 commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
1795 fpscr_operand, noncommutative_float_operator.
1796 (ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
1797 (SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
1798 * sh.md (attribute cpu): Add value sh4.
1799 (attrbutes fmovd, issues): Define.
1800 (attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
1801 (function units memory, int, mpy, fp): Make dependent on issue rate.
1802 (function units issue, single_issue, load_si, load): Define.
1803 (function units load_store, fdiv, gp_fpul): Define.
1804 (attribute hit_stack): Provide proper default.
1805 (use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
1806 (udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
1807 (udivsi3, divsi3): Emit special patterns for SH4 hardware,
1808 (mulsi3_call): Now uses match_operand for function address.
1809 (mulsi3): Also emit code for SH1 case. Wrap result in REG_LIBCALL /
1811 (push, pop, push_e, pop_e): Now define_expands.
1812 (push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
1813 (movsi_ie): Added y/i alternative.
1814 (ic_invalidate_line_i, movdf_i4): New insns.
1815 (movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
1816 (reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
1817 (movdf): Add special code for SH4.
1818 (movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
1819 (call_valuei, calli, call_value): Likewise.
1820 (movsf): Emit no-op move.
1821 (mov_nop, movsi_y): New insns.
1822 (blt, sge): generalize to handle DFmode.
1823 (return predicate): Call emit_fpscr_use and remove_dead_before_cse.
1824 (block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
1825 (block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
1826 (fpu_switch0, fpu_switch1, movpsi): New expanders.
1827 (fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
1828 (toggle_sz): New insn.
1829 (addsf3, subsf3, mulsf3, divsf3): Now define_expands.
1830 (addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
1831 (macsf3): Make use of fpscr visible. Disable for SH4.
1832 (floatsisf2): Make use of fpscr visible.
1833 (floatsisf2_i4): New insn.
1834 (floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
1835 (ieee_ccmpeqsf_t): Likewise.
1836 (fix_truncsfsi2): Emit different code for SH4.
1837 (fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
1838 (cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
1839 (negsf2, sqrtsf2, abssf2): Now expanders.
1840 (adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
1841 (negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
1842 (muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
1843 (fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
1844 (fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
1845 (fix_truncdfsi2_i4_2+1): New splitters.
1846 (negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
1847 (extendsfdf2, truncdfsf2): New expanders.
1848 (truncdfsf2_i4): New insn.
1849 * t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
1850 (MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
1851 * float-sh.h: When testing for __SH3E__, also test for
1852 __SH4_SINGLE_ONLY__ .
1853 * va-sh.h (__va_freg): Define to float.
1854 (__va_greg, __fa_freg, __gnuc_va_list, va_start):
1855 Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
1856 (__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
1857 (__PASS_AS_FLOAT): Use different definition for __SH4__ and
1859 (TARGET_SH4_P): Define.
1862 * sh.md (movdf_k, movsf_i): Tweak the condition so that
1863 init_expr_once is satisfied about the existence of load / store insns.
1865 * sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
1866 change m constraint in source operand to mr / mf .
1868 * va-sh.h (__va_arg_sh1): Use __asm instead of asm.
1870 * (__VA_REEF): Define.
1871 (__va_arg_sh1): Use it.
1873 * va-sh.h (va_start, va_arg, va_copy): Add parenteses.
1875 Sun Nov 22 21:34:02 1998 Jeffrey A Law (law@cygnus.com)
1877 * i386/dgux.c (struct option): Add new "description field".
1878 * m88k/m88k.c (struct option): Likewise.
1880 Sun Nov 22 16:07:57 PST 1998 Jeff Law (law@cygnus.com)
1882 * version.c: Bump for snapshot.
1884 Sun Nov 22 13:40:02 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1886 * regmove.c (regmove_profitable_p): Use return value of find_matches
1889 Sun Nov 22 02:47:37 PST 1998 Jeff Law (law@cygnus.com)
1891 * version.c: Bump for snapshot.
1893 Sat Nov 21 22:12:09 1998 Jeffrey A Law (law@cygnus.com)
1895 * reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
1896 without reload having been called earlier.
1898 * v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
1900 (v850_reorg): Similarly.
1902 * loop.c (check_dbra_loop): Avoid using gen_add2_insn.
1904 Sat Nov 21 02:18:38 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1906 * loop.c (move_movables): Start of libcall might be new loop start.
1908 Fri Nov 20 12:14:16 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1910 * hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().
1912 Fri Nov 20 08:34:00 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1914 * function.c (nonlocal_goto_handler_slots): Renamed from
1915 nonlocal_goto_handler_slot; now an EXPR_LIST chain.
1916 (push_function_context_to): Adjust for this change.
1917 (pop_function_context_from): Likewise.
1918 (init_function_start): Likewise.
1919 (expand_function_end): Likewise.
1920 * function.h (struct function): Likewise.
1921 * calls.c (expand_call): Likewise.
1922 * explow.c (allocate_dynamic_stack_space): Likewise.
1923 * expr.h (nonlocal_goto_handler_slots): Rename its declaration.
1924 * stmt.c (declare_nonlocal_label): Make a new handler slot for each
1926 (expand_goto): When doing a nonlocal goto, find corresponding handler
1927 slot for it. Don't put the label address in the static chain register.
1928 (expand_end_bindings): Break out nonlocal goto handling code into
1929 three new functions.
1930 (expand_nl_handler_label, expand_nl_goto_receiver,
1931 expand_nl_goto_receivers): New static functions, broken out of
1932 expand_end_bindings and adapted to create one handler per nonlocal
1934 * function.c (delete_handlers): Delete insn if it references any of
1935 the nonlocal goto handler slots.
1936 * i960.md (nonlocal_goto): Comment out code that modifies
1938 * sparc.md (nonlocal_goto): Likewise.
1939 (goto_handler_and_restore_v9): Comment out.
1940 (goto_handler_and_restore_v9_sp64): Comment out.
1942 Thu Nov 19 23:44:38 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1944 * expr.c (STACK_BYTES): Delete unused macro.
1945 * calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
1946 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1947 (expand_call): Likewise.
1948 (emit_library_call): Likewise.
1949 (emit_library_call_value): Likewise.
1950 * function.c: Provide default for PREFERRED_STACK_BOUNDARY.
1951 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1952 * explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
1953 (round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1954 (allocate_dynamic_stack_space): Likewise.
1955 * tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
1956 (STACK_BOUNDARY): Update description to reflect the new situation.
1958 Thu Nov 19 22:20:51 1998 Jeffrey A Law (law@cygnus.com)
1960 * reorg.c (relax_delay_slots): When optimizing for code size, if a
1961 return with a filled delay slot is followed by a return with an
1962 unfilled delay slot, delete the first return and reemit the insn
1963 that was previously in its delay slot.
1965 * i860.c (single_insn_src_p): Add missing parens.
1966 * ginclude/math-3300.h: Likewise.
1968 Thu Nov 19 20:55:59 1998 H.J. Lu (hjl@gnu.org)
1970 * regclass.c (init_reg_sets_1): Add prototype.
1971 (init_reg_modes): Likewise.
1973 1998-11-19 Zack Weinberg <zack@rabi.phys.columbia.edu>
1975 * c-common.c: Change warning messages to say `comparison is
1976 always true' or `comparison is always false' instead of the
1977 confusing `is always 0', `is always 1'.
1979 Thu Nov 19 19:05:49 1998 Per Bothner <bothner@cygnus.com>
1981 * print-tree.c (print_node): After printing BLOCK or BIND_EXPR,
1982 break instead of return (which loses closing '>').
1984 Thu Nov 19 19:34:13 1998 Jeffrey A Law (law@cygnus.com)
1986 * i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
1987 standard 387 constants.
1989 * i386.md (jump): Explicitly set "memory" attribute.
1990 (indirect_jump, prologue_set_stack_ptr): Likewise.
1991 (prologue_get_pc_and_set_got, pop): Likewise.
1992 (allocate_stack_worder, blockage, return_internal): Likewise.
1993 (return_pop_internal, nop): Likewise.
1994 (epilogue_set_stack_ptr, leave): Likewise.
1996 Thu Nov 19 15:42:54 1998 Nick Clifton <nickc@cygnus.com>
1998 * config/arm/coff.h: Set USER_LABEL_PREFIX to "_".
2000 Thu Nov 19 23:20:59 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2002 * reload1.c (reload_reg_free_for_value_p):
2003 Early auto_inc reloads don't conflict with outputs.
2005 Thu Nov 19 12:58:55 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2007 * configure.in: Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
2008 Instead call AC_HEADER_SYS_WAIT.
2010 * collect2.c: Don't provide defaults for sys/wait.h macros.
2012 * protoize.c: Likewise. Also, don't include sys/wait.h.
2014 * system.h: Include sys/wait.h and provide macro defaults.
2016 1998-11-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2018 * Makefile.in (mandir): Set to @mandir@.
2019 (man1dir): New variable to hold the former value of $(mandir).
2020 Replace all uses of $(mandir) by $(man1dir).
2022 Wed Nov 18 16:31:28 1998 Jim Wilson <wilson@cygnus.com>
2024 * reload.c (find_reloads_address_part): If have a CONST_INT, create
2025 a new one before passing it to force_const_mem.
2027 * reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
2028 find_reloads_address call.
2030 Wed Nov 18 22:13:00 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2032 * expr.c (store_expr): Don't generate load-store pair
2033 if TEMP is identical (according to ==) with TARGET.
2035 Tue Nov 17 22:25:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2037 * reload1.c (reload_reg_free_for_value_p): When considered reload
2038 has an output, matching inputs are not sufficient to avoid conflict.
2040 Tue Nov 17 11:51:16 1998 Mark Mitchell <mark@markmitchell.com>
2042 * hash.h (hash_table_key): New type.
2043 (hash_entry): Change `string' field to generic `key'.
2044 (hash_table): Add `comp' and `hash' functions.
2045 (hash_table_init): Take them as input.
2046 (hash_table_init_n): Likewise.
2047 (hash_lookup): Modify for generic keys.
2048 (hash_newfunc): Likewise.
2049 (hash_traverse): Likewise.
2050 (string_hash): New function.
2051 (string_compare): Likewise.
2052 (string_copy): Likewise.
2053 * hash.c (hash_table_init_n): Modify for generic keys.
2054 (hash_table_init): Likewise.
2055 (hash_lookup): Likewise.
2056 (hash_newfunc): Likewise.
2057 (hash_traverse): Likewise.
2058 (string_hash): Split out from hash_lookup.
2059 (string_compare): New function.
2060 (string_copy): Split out from hash_lookup.
2061 * tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
2063 (symbol_hash_lookup): Likewise.
2064 (file_hash_newfunc): Likewise.
2065 (file_hash_lookup): Likewise.
2066 (demangled_hash_newfunc): Likewise.
2067 (demangled_hash_lookup): Likewise.
2068 (tlink_int): Likewise.
2069 (read_repo_file): Likewise.
2070 (recompile_files): Likewise.
2071 (demangle_new_symbols): Likewise.
2072 (scan_linker_output): Likewise.
2074 Tue Nov 17 17:13:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2076 * flow.c (insn_dead_p): New argument NOTES. Changed all callers.
2078 Mon Nov 16 17:56:07 1998 David Edelsohn <edelsohn@mhpcc.edu>
2080 * rs6000.c (output_mi_thunk): Improve test for local branch.
2082 Mon Nov 16 17:56:07 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
2084 * rs6000.c (output_mi_thunk): Correct test for aggregate values.
2086 Mon Nov 16 21:02:52 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2088 * reload1.c (reload_reg_free_before_p): Delete.
2089 Changed all callers to use reload_reg_free_for_value_p instead.
2090 (reload_reg_free_for_value_p): Handle more reload types.
2091 A RELOAD_FOR_INPUT doesn't conflict with its
2092 RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
2093 Add special case for OUT == const0_rtx.
2094 Added ignore_address_reloads argument. Changed all callers.
2096 Mon Nov 16 02:22:29 1998 Jason Merrill <jason@yorick.cygnus.com>
2098 * toplev.c (compile_file): Don't pedwarn about undefined static
2099 functions just because we passed -Wunused.
2101 Mon Nov 16 04:41:41 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2103 * function.c (purge_addressof_1): Unshare rtl created by
2106 Mon Nov 16 04:23:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2108 * regmove.c (regmove_optimize): Don't do anything but
2109 optimize_reg_copy[123] when flag_regmove is not set.
2111 Sat Nov 14 15:05:07 1998 Richard Henderson <rth@cygnus.com>
2113 * alpha.md (addsi3, subsi3): Revise 5 Nov change to store DImode
2114 value in paradoxical SImode result, rather than truncating midpoint.
2116 Fri Nov 13 22:19:23 1998 Richard Henderson <rth@cygnus.com>
2118 * alpha.c (reg_not_elim_operand): New.
2119 * alpha.h (PREDICATE_CODES): Add it.
2120 * alpha.md (s48addq, s48subq patterns): Use it as the predicate
2121 for the multiplicand.
2123 Fri Nov 13 22:50:37 1998 David Edelsohn <edelsohn@mhpcc.edu>
2125 * rs6000.md (movsf): Remove explicit secondary-reload-like
2126 functionality. Only truncate SFmode store if in FPR.
2127 (movsf splitters): Combine const_double splitters.
2128 (movsf_hardfloat): Add GPR support.
2130 Fri Nov 13 11:02:11 1998 Stan Cox <scox@cygnus.com>
2132 * splet.h (SUBTARGET_OVERRIDE_OPTIONS): New to
2133 deprecate -mlive-g0 and -mbroken-saverestore.
2134 * t-splet (MULTILIB_OPTIONS): Likewise.
2136 * sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
2137 in a leaf function. Clarify total_size/extra_size relationship.
2139 Thu Nov 12 19:20:57 1998 Geoffrey Noer <noer@cygnus.com>
2141 * i386/cygwin32.asm: Delete.
2142 * i386/cygwin.asm: New file, renamed from cygwin32.asm.
2143 * i386/cygwin32.h: Delete.
2144 * i386/cygwin.h: New file, renamed from cygwin32.h.
2145 * i386/t-cygwin32: Delete.
2146 * i386/t-cygwin: New file, renamed from t-cygwin32. Include
2147 cygwin.asm instead of cygwin32.asm. Remove "32" from comment.
2148 * i386/x-cygwin32: Delete.
2149 * i386/x-cygwin: New file, renamed from x-cygwin32.
2150 * i386/xm-cygwin32: Delete.
2151 * i386/xm-cygwin: New file, renamed from xm-cygwin32. Use newly
2152 renamed cygwin_ funcs for path translations.
2153 * i386/win32.h: Define __CYGWIN__ when -mcygwin given.
2154 * i386/winnt.c: Remove "32" from comment about cygwin.
2155 * i386/mingw32.h: Fix references to cygwin32.h in light of above.
2156 * rs6000/cygwin32.h: Delete.
2157 * rs6000/cygwin.h: New file, renamed from cygwin32.h. Add
2158 -D__CYGWIN__ to CPP_PREDEFINES.
2159 * rs6000/x-cygwin32: Delete.
2160 * rs6000/x-cygwin: New file, renamed from x-cygwin32.
2161 * rs6000/xm-cygwin32: Delete.
2162 * rs6000/xm-cygwin: New file, renamed from xm-cygwin32.
2164 * configure.in: Check for cygwin* instead of cygwin32. Account
2165 for the rename of cygwin-related config files to lose the "32"s.
2166 * configure: Regenerate.
2168 * cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
2169 toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.
2171 Wed Nov 11 12:25:19 1998 Tom Tromey <tromey@cygnus.com>
2173 * Makefile.in (JAVAGC): New macro.
2174 * configure: Rebuilt.
2175 * configure.in: Recognize --enable-java-gc argument. Subst
2178 Thu Nov 12 03:32:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2180 Handle equivalences that have been obscured by gcse:
2182 * reload1.c (reload): Handle equivalences set up in multiple places.
2183 * local-alloc.c (reg_equiv_init_insns): New variable.
2184 (no_equiv): New function.
2185 (update_equiv_regs): Handle equivalences set up in multiple places.
2186 Don't ignore an insn just because its destination is likely to be
2189 Wed Nov 11 13:46:13 1998 Jim Wilson <wilson@cygnus.com>
2191 * except.c (expand_eh_return): Readd force_operand call lost in
2194 Tue Nov 10 17:04:11 1998 David Edelsohn <edelsohn@mhpcc.edu>
2196 * rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.
2198 1998-11-09 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2200 * dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.
2202 Mon Nov 9 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2204 * regmove.c (regmove_optimize): Fix error in last change.
2206 Mon Nov 9 16:37:52 1998 Andrew Cagney <cagney@b1.cygnus.com>
2208 * mips.c (function_prologue): When TARGET_MIPS16, adjust the register
2209 offset in the .mask pseudo to compensate for frame pointer adjustments.
2210 (mips16_fp_args, build_mips16_call_stub): For little endian, do not
2211 word swap arguments moved to/from FP registers.
2212 * mips16.S (DFREVCMP): Reverse arguments to OPCODE.
2214 Mon Nov 9 09:47:06 PST 1998 Jeff Law (law@cygnus.com)
2216 * version.c: Bump for snapshot.
2218 Mon Nov 9 02:14:14 PST 1998 Jeff Law (law@cygnus.com)
2220 * version.c: Bump for snapshot.
2222 Mon Nov 9 03:06:24 1998 Jeffrey A Law (law@cygnus.com)
2224 * reload1.c (delete_output_reload_insn): If a pseudo is set multiple
2225 times, then it can not be completely replaced.
2227 Mon Nov 9 00:39:02 1998 Richard Henderson <rth@cygnus.com>
2229 * alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.
2231 Sun Nov 8 17:50:30 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2233 * gansidecl.h: Prepend a "G" to the macro wrapping this file
2234 (to distinguish it from the macro wrapping ansidecl.h.)
2235 Include libiberty's ansidecl.h. Remove all redundant definitions.
2236 Define the PROTO() style macros in terms of the PARAMS() ones.
2239 * calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
2240 __STDC__, when deciding whether to use ANSI variable args.
2241 (emit_library_call_value): Likewise.
2243 * cccp.c (error): Likewise.
2244 (warning): Likewise.
2245 (error_with_line): Likewise.
2246 (warning_with_line): Likewise.
2247 (pedwarn): Likewise.
2248 (pedwarn_with_line): Likewise.
2249 (pedwarn_with_file_and_line): Likewise.
2252 * cexp.y (error): Likewise.
2253 (pedwarn): Likewise.
2254 (warning): Likewise.
2256 * collect2.c (fatal_perror): Likewise.
2260 * combine.c (gen_rtx_combine): Likewise.
2262 * cpperror.c (cpp_message): Likewise.
2263 (cpp_fatal): Likewise.
2265 * cpplib.c (cpp_error): Likewise.
2266 (cpp_warning): Likewise.
2267 (cpp_pedwarn): Likewise.
2268 (cpp_error_with_line): Likewise.
2269 (cpp_warning_with_line): Likewise.
2270 (cpp_pedwarn_with_line): Likewise.
2271 (cpp_pedwarn_with_file_and_line): Likewise.
2273 * cpplib.h: Don't define PARAMS() macro.
2275 * demangle.h: Likewise.
2277 * doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
2278 when deciding whether to use ANSI variable args.
2280 * emit-rtl.c (gen_rtx): Likewise.
2281 (gen_rtvec): Likewise.
2283 * final.c (asm_fprintf): Likewise.
2285 * fix-header.c (cpp_message): Likewise.
2287 (cpp_fatal): Likewise.
2289 * gcc.c (concat): Likewise.
2293 * genattr.c (fatal): Likewise.
2295 * genattrtab.c (attr_rtx): Likewise.
2296 (attr_printf): Likewise.
2299 * gencodes.c (fatal): Likewise.
2301 * genconfig.c (fatal): Likewise.
2303 * genemit.c (fatal): Likewise.
2305 * genextract.c (fatal): Likewise.
2307 * genflags.c (fatal): Likewise.
2309 * genopinit.c (fatal): Likewise.
2311 * genoutput.c (fatal): Likewise.
2314 * genpeep.c (fatal): Likewise.
2316 * genrecog.c (fatal): Likewise.
2318 * halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
2319 deciding whether to declare `tree_node' and `rtx_def'.
2321 * hash.h: Don't define stuff we get from gansidecl.h.
2323 * mips-tfile.c: Likewise. Define __proto() in terms of PARAMS().
2324 (fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
2325 whether to use ANSI variable args.
2328 * prefix.c (concat): Likewise.
2332 * system.h: Likewise.
2334 * toplev.c (error_with_file_and_line): Likewise.
2335 (error_with_decl): Likewise.
2336 (error_for_asm): Likewise.
2339 (warning_with_file_and_line): Likewise.
2340 (warning_with_decl): Likewise.
2341 (warning_for_asm): Likewise.
2342 (warning): Likewise.
2343 (pedwarn): Likewise.
2344 (pedwarn_with_decl): Likewise.
2345 (pedwarn_with_file_and_line): Likewise.
2347 (really_sorry): Likewise.
2349 * toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
2350 whether to declare `tree_node' and `rtx_def'.
2352 * tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
2353 deciding whether to use ANSI variable args.
2354 (build_nt): Likewise.
2355 (build_parse_node): Likewise.
2357 Sun Nov 8 13:10:55 PST 1998 Jeff Law (law@cygnus.com)
2359 * version.c: Bump for snapshot.
2361 Sat Nov 7 23:34:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2363 * Makefile.in (libcpp.a): Check RANLIB_TEST before runing RANLIB.
2365 Sat Nov 7 22:26:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
2367 * collect2.c (main, case 'b'): Use else if.
2369 Sat Nov 7 15:35:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2371 * configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
2372 Arrange to include gansidecl.h in {ht}config.h & tm.h just
2373 before the config/ directory headers.
2374 (tm_file_list, host_xm_file_list, build_xm_file_list): Handle
2375 gansidecl.h in the list of dependencies.
2377 * Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
2378 (TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
2379 mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
2380 gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
2381 dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
2382 cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
2385 * cccp.c: Don't include gansidecl.h.
2387 * collect2.c: Likewise.
2388 * config/c4x/c4x.c: Likewise.
2389 * config/v850/v850.h: Likewise.
2390 * cppalloc.c: Likewise.
2391 * cpperror.c: Likewise.
2392 * cppexp.c: Likewise.
2393 * cppfiles.c: Likewise.
2394 * cpphash.c: Likewise.
2395 * cpplib.c: Likewise.
2396 * cppmain.c: Likewise.
2397 * cppulp.c: Likewise.
2398 * demangle.h: Likewise.
2399 * doprint.c: Likewise.
2400 * dyn-string.c: Likewise.
2401 * eh-common.h: Likewise.
2402 * fix-header.c: Likewise.
2403 * frame.c: Likewise.
2406 * gen-protos.c: Likewise.
2407 * gencheck.c: Likewise.
2408 * halfpic.h: Likewise.
2410 * machmode.h: Likewise.
2411 * mbchar.c: Likewise.
2412 * prefix.c: Likewise.
2413 * protoize.c: Likewise.
2414 * recog.h: Likewise.
2416 * scan-decls.c: Likewise.
2418 * varray.h: Likewise.
2420 Sat Nov 7 11:37:53 1998 Richard Henderson <rth@cygnus.com>
2422 * i386.md (call_value_pop): If we're not popping anything,
2423 defer to call_value.
2424 (call_pop): Likewise defer to call.
2426 Sat Nov 7 02:49:56 1998 Richard Henderson <rth@cygnus.com>
2428 * function.c (purge_addressof): Clear purge_addressof_replacements
2429 only after processing the whole function.
2431 Sat Nov 7 00:54:55 1998 Jeffrey A Law (law@cygnus.com)
2433 * reload1.c (reload): If we can not perform a particular elimination
2434 when we thought we could earlier, then we must always iterate through
2435 the loop at least one more time.
2437 Fri Nov 6 19:37:33 1998 Richard Henderson <rth@cygnus.com>
2439 * alpha.c (add_operand): Simplify the CONST_INT match.
2440 (sext_add_operand): Correct typo in comparison by using
2441 CONST_OK_FOR_LETTER_P.
2442 * alpha.md (s?addq): Use sext_add_operand to allow the negative
2443 constant alternatives to be generated.
2444 (mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
2445 small constants, since the hw instructions do.
2447 Fri Nov 6 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2449 * reload1.c (emit_reload_insns): When rewriting the SET_DEST of a
2450 previous insn to store directly into our reload register, make sure
2451 that if the source of the previous insn is a reload register, its
2452 spill_reg_store and spill_reg_stored_to values are cleared.
2454 Fri Nov 6 16:35:10 1998 David Edelsohn <edelsohn@mhpcc.edu>
2456 * rs6000.md (floatunssidf2_internal splitter): Use base register
2457 operand, not hard-coded SP.
2459 Fri Nov 6 04:07:53 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2461 * jump.c (calculate_can_reach_end): Fix thinko.
2463 Fri Nov 6 00:16:04 1998 Jeffrey A Law (law@cygnus.com)
2465 * reorg.c (fill_simple_delay_slots): Fix typo.
2467 * romp.h (LEGITIMIZE_ADDRESS): Fix typo.
2469 Fri Nov 6 00:10:00 1998 Jan Hubicka (hubicka@freesoft.cz)
2471 * i386.md (extendsidi2): Use # in the output template.
2472 (extendsidi splitters): New splitters.
2474 Thu Nov 5 11:13:27 1998 Nick Clifton <nickc@cygnus.com>
2476 * configure.in: Use unknown-elf.h as tm_file for arm-elf
2478 * configure: Regenerate.
2480 Thu Nov 5 07:59:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2482 * jump.c (init_label_info, delete_barrier_successors,
2483 mark_all_labels, delete_unreferenced_labels,
2484 delete_noop_moves, calculate_can_reach_end): New functions broken
2485 out of jump_optimize.
2486 (jump_optimize): Use them.
2488 Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
2490 * except.c (expand_fixup_region_end): Make sure outer context labels
2491 are not issued in an inner context during cleanups.
2493 Thu Nov 5 04:03:06 1998 Richard Henderson <rth@cygnus.com>
2495 * alpha.md (addsi3, subsi3): No new temporaries once cse is
2498 Thu Nov 5 03:29:19 1998 Richard Henderson <rth@cygnus.com>
2500 * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
2501 to expose this midpoint to CSE.
2503 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2505 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
2507 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2509 * configure.in: Bring over gcc2 change of Nov 19 1997.
2511 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
2513 * toplev.c (output_lang_identify): Make definition dependent on
2514 ASM_IDENTIFY_LANGUAGE.
2516 * print-rtl.c (spaces): Make static.
2518 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
2520 * extend.texi: Clarify proper uses for register clobbers in asms.
2522 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2524 * recog.h (enum op_type): Define.
2525 (constrain_operands): Adjust prototype.
2526 (recog_op_type): Declare new variable.
2527 * recog.c (recog_op_type): New variable.
2528 (insn_invalid_p): Allow modifying an asm statement after reload.
2529 (extract_insn): Set up recog_op_type.
2530 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
2531 Don't compute operand types, use recog_op_type.
2532 Use the information computed by extract_insn instead of the previous
2533 method of finding it by insn code number.
2534 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
2535 * reorg.c (fill_slots_from_thread): Likewise.
2536 * reload1.c (reload_as_needed): Likewise.
2537 (gen_reload): Likewise.
2538 (inc_for_reload): Likewise.
2539 (reload_cse_simplify_operands): Likewise.
2540 Use the information computed by extract_insn instead of the previous
2541 method of finding it by insn code number.
2542 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
2544 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
2545 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
2546 Use the information computed by extract_insn instead of the previous
2547 method of finding it by insn code number.
2548 * regmove.c (find_matches): Likewise. Change meaning of the return
2549 value to be nonzero if the optimization can be performed, zero if
2550 not. All callers changed.
2551 Shorten some variable names to fix formatting problems.
2552 (regmove_optimize): Shorten some variable names to fix formatting
2554 Use the information computed by extract_insn instead of the previous
2555 method of finding it by insn code number.
2556 * regclass.c (scan_one_insn): Likewise.
2557 (record_reg_classes): Don't compute operand types, use recog_op_type.
2558 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
2559 recog_constraints instead.
2561 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
2563 * rtl.h (flow2_completed): Declare.
2564 * flow.c (flow2_completed): Definition.
2565 * toplev.c (rest_of_compilation): Set and clear flow2_completed
2568 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
2570 * Makefile.in (libcpp.a): Ranlib libcpp.a
2572 * cppulp.c (user_label_prefix): Initialize.
2574 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
2576 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
2577 at a RETURN if current_function_sp_is_unchanging is set.
2579 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2581 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
2583 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
2585 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
2586 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
2587 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
2588 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
2589 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
2590 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
2592 (LIB_SPEC): Handle -mno-cyginw option.
2593 (LINK_SPEC): Handle -mdll.
2595 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2597 * reload.c (find_reloads): Fix test for usage by other reload
2598 to handle secondary reloads properly.
2600 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2602 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
2603 intermediate structure which has exactly the members provided by
2604 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
2605 static intermediate structure.
2607 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
2608 from the intermediate structure. Do the same analogous fix in
2609 the case where ELIMINABLE_REGS is not defined.
2611 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
2613 * pa.h (SELECT_SECTION): Fix thinko.
2615 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
2617 * dwarf2out.c (output_call_frame_info): Comments on last change.
2619 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
2621 * arm.c (add_constant): When taking the address of an item in the
2622 pool, get the mode of the item addressed.
2624 * arm.c (final_prescan_insn case INSN): If an insn doesn't
2625 contain a SET or a PARALLEL, don't consider it for conditional
2628 Restore ABI compatibility for NetBSD.
2629 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
2631 (RETURN_IN_MEMORY): Likewise.
2633 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
2635 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
2636 (m32r_output_block_move): Rewrite bytes < 4 handling.
2638 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2640 * configure.in: Call AC_FUNC_VFORK.
2642 * collect2.c: Define VFORK_STRING as a printable string for
2643 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
2644 defined, include vfork.h. If VMS is defined, define vfork()
2645 appropriately. Remove vfork check on USG, we're using autoconf.
2646 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
2647 checking locally what string to pass.
2648 (scan_prog_file): Likewise.
2649 (scan_libraries): Likewise.
2651 * gcc.c: Remove vfork check on USG, we're using autoconf.
2652 Besides, no calls to vfork/fork occur in this file.
2654 * protoize.c: Likewise.
2656 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2658 * configure.in (DEFAULT_LINKER): renamed from LD
2659 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
2660 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
2661 * configure: rebuilt
2663 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2665 * BUGS: fix the regexp for `more' to find the appropriate node.
2666 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
2668 * BUGS: added link to the WWW FAQ
2670 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
2672 * version.c: Bump for snapshot.
2674 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
2676 * From Christian Gafton:
2677 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
2678 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
2679 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
2681 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
2683 * c-common.c (c_get_alias_set): Allow all type-punning through
2684 unions. Don't get confused about the type of a bit-field, despite
2685 the antics of build_modify_expr.
2687 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
2689 * fixinc.sco: Paramaterize #include_next values.
2690 * fixinc/fixinc.sco: Likewise.
2692 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
2694 * toplev.c (rest_of_compilation): No longer set reload_completed.
2695 * reload1.c (reload): Set it here. Perform instruction splitting
2696 after reload has completed if we will be running the scheduler
2699 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
2701 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
2702 EH region if exceptions are enabled and we're performing cross
2704 (find_cross_jump): Exit loop if the insns are in different EH regions.
2706 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
2708 * dwarf2out.c (output_call_frame_info): Use
2709 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
2711 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2713 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
2714 * c-common.c (check_format_info): Don't check for the 'x'
2715 format character twice, instead check for 'x' and 'X'
2717 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
2719 * configure.in (assembler features): Also make gas is configured if
2720 we find it in the souce tree.
2722 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
2724 * i386.c (i386_comp_type_attributes): Compare whether the
2725 attributes are defined, not their tree nodes.
2727 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2729 * configure.in (gxx_include_dir): bitten by autoconf quoting
2731 * configure: rebuilt
2733 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2735 * configure.in: Ignore non-absolute value in $AS.
2737 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
2739 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
2741 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
2743 * configure.in (msdosdjgpp): Set exeext and target_alias.
2745 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2747 * flow.c (XNMALLOC): New macro.
2748 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
2750 (add_edge, add_edge_to_label): New static functions.
2751 (free_bb_memory): New function.
2752 (flow_delete_insn): Delete function.
2753 (basic_block_drops_in): Delete variable.
2754 (find_basic_blocks): Allocate and initialize basic_block_head,
2755 basic_block_succ. Don't allocate basic_block_drops_in.
2756 Call free_bb_memory at the beginning.
2757 (find_basic_blocks_1): Don't do multiple passes.
2758 Delete code to compute basic_block_drops_in.
2759 After calling make_edges, mark blocks reached by current block live.
2760 Update test for unreachable live blocks.
2761 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
2763 Simplify to call add_edge_to_label when a LABEL_REF is found.
2764 (make_edges): Simplify to call add_edge_to_label instead of
2765 mark_label_ref most of the time.
2766 Compute here whether control drops into the next block.
2767 (delete_unreachable_blocks): Return void. All callers changed.
2768 Delete unreachable blocks in reverse order.
2769 After deleting all unreachable blocks, renumber the remaining ones
2770 and update n_basic_blocks.
2771 (delete_block): Speed up deletion a bit.
2772 Don't set basic_block_drops_in for deleted blocks.
2773 (free_basic_block_vars): Don't free basic_block_drops_in.
2774 (life_analysis_1): Update to use new edge representation.
2775 (dump_flow_info): Delete code to print basic block info; call
2776 dump_bb_data instead.
2777 (compute_preds_succs): Delete code to recompute basic_block_drops_in
2778 and uid_block_number.
2779 Simply copy the previously computed cfg.
2780 (dump_bb_data): New arg LIVE_INFO. All callers changed.
2781 Print register lifetime information if LIVE_INFO is nonzero.
2782 * basic-block.h (dump_bb_data): Adjust prototype.
2783 * gcse.c (gcse_main): Update call to dump_bb_data.
2784 * rtl.h (free_bb_memory): Declare.
2785 * toplev.c (rest_of_compilation): Call free_bb_memory.
2787 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
2788 (update_eliminable_offsets): Don't compute it.
2789 (set_initial_elim_offsets): Don't initialize it.
2790 Break out some code into set_initial_label_offsets so the rest of
2791 this function can be called from reload_as_needed.
2792 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
2793 ELIMINABLE_REGS isn't.
2794 (set_initial_label_offsets): New function, broken out of
2795 set_initial_elim_offsets.
2796 (set_offsets_for_label): New function, broken out of set_label_offsets
2797 and reload_as_needed.
2798 (reload): Call the two new functions.
2799 (reload_as_needed): Call set_initial_elim_offsets instead of
2800 duplicating the code. Likewise for set_offsets_for_label.
2802 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
2803 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
2804 any hard reg, reg_reloaded_dead contains valid data.
2806 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
2808 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
2809 "stdcall" and "cdecl" attributes.
2811 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
2813 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
2814 handle deleted no-op moves of hard registers.
2815 * haifa-sched.c (update_flow_info): Likewise.
2817 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
2819 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
2820 of the sequences to reload the HILO register which do not actually
2823 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
2825 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
2827 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
2829 * except.c (emit_eh_context): Make the EH context register stay alive
2830 at -O0 so stupid.c doesn't get confused.
2832 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2834 * emit-rtl.c (try_split): Do not try to split a BARRIER.
2836 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
2837 Jeffrey A Law (law@cygnus.com)
2839 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
2840 (zero_extendsidi2): Use # in output template and handle completely by
2842 (zero_extend splitters): New define_splits.
2843 (ashiftrt_32): New pattern.
2845 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
2847 * tree.c (append_random_chars): New fn.
2848 (get_file_function_name_long): Use it.
2850 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
2852 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
2853 (LIBCPP_OBJS): New. Add cppulp.o.
2854 (cppmain, fix-header): Depend on and use libcpp.a.
2855 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
2856 of the individual object files.
2857 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
2860 * cccp.c (user_label_prefix): New.
2861 (main): Set it off -f*leading-underscore.
2862 (special_symbol): Use it.
2863 * cpplib.c (special_symbol): Likewise.
2864 (cpp_handle_option): Handle -f*leading-underscore.
2865 * cppulp.c: New file.
2867 * output.h (user_label_prefix): Declare it.
2868 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
2869 * toplev.c (f_options, main): Handle -f*leading-underscore.
2871 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
2872 referencing USER_LABEL_PREFIX directly.
2873 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
2874 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
2875 * final.c (asm_fprintf): Use user_label_prefix instead.
2876 * arm/thumb.c (thumb_print_operand): Likewise.
2878 * gcc.c (default_compilers): Pass -f*leading-underscore on to
2879 cpp wherever appropriate.
2881 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
2883 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
2884 specific compiler switches.
2886 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
2888 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
2891 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2893 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
2894 structure which has exactly the members provided by EXTRA_SPECS.
2895 Xmalloc() the real `extra_specs', and initialize it from this
2896 intermediate structure.
2898 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
2900 * mips.h (EXTRA_SPECS): Likewise.
2902 * sparc.h (EXTRA_SPECS): Likewise.
2904 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2906 * function.c (purge_addressof_1): Instead of aborting when a
2907 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
2908 work just put the ADDRESSOF on stack. Otherwise remember all such
2909 successfull replacements, so that exactly the same replacements
2910 can be made on the REG_NOTEs. Remove the special case for CALL
2912 (purge_addressof_replacements): New variable.
2913 (purge_addressof): Clear it at end.
2915 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2917 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
2918 (lang_init): Call check_newline always.
2919 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
2920 cpp_start_read, set yy_cur and yy_lim to read from
2921 parse_in.token_buffer, so that we'll see the first #line
2923 * cpplib.c (cpp_start_read): finclude the main input file
2924 before processing -include/-imacros. Process -imacros and
2925 -include separately, and handle -include by stacking a
2926 buffer for the file in question as if it'd been #included.
2927 * toplev.c (documented_lang_options) Recognize -H when
2930 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2932 * cpplib.c: Merge do_once into do_pragma. Break file handling
2933 code out of do_include.
2934 Move append_include_chain, deps_output,
2935 file_cleanup, redundant_include_p, import_hash,
2936 lookup_import, add_import, read_filename_string, read_name_map,
2937 open_include_file, finclude, safe_read to cppfiles.c.
2938 Move prototypes for deps_output, append_include_chain,
2939 finclude to cpplib.h. Move definition of struct
2940 file_name_list there also.
2942 * cppfiles.c: New file. Contains all the above functions
2943 broken out of cpplib.c; also hack_vms_include_specification
2944 from cccp.c and find_include_file, a new function broken out of
2947 * Makefile.in (cppmain): Depend on cppfiles.o.
2948 (fix-header): Likewise.
2949 (cppfiles.o): New target.
2950 * configure.in (--enable-c-cpplib): Add cppfiles.o to
2951 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
2953 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
2955 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
2956 if pending_types is non-zero.
2957 (dwarfout_finish): Verify pending_types is zero before finishing.
2959 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
2961 * expr.c (convert_move): Use shifts to perform the move if a
2962 suitable extend pattern cannot be found. Code written by
2963 Richard Henderson <rth@cygnus.com>.
2965 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2967 * regclass.c (renumber, regno_allocated): New static variables, moved
2968 out of allocate_reg_info.
2969 (allocate_reg_info): Move these two variables outside the function.
2970 Move code to free memory into new function free_reg_info.
2971 (free_reg_info): New function, broken out of allocate_reg_info.
2972 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
2973 * rtl.h (allocate_reg_info): Don't declare.
2974 (free_reg_info): Declare.
2976 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
2978 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
2980 * toplev.c (compile_file): Temporarily revert last change.
2982 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
2984 * c-typeck.c (convert_for_assignment): Parenthesize.
2986 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2988 * reload1.c (delete_output_reload): Avoid ambigous else.
2990 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
2992 * toplev.c (compile_file): Call allocate_reg_info to free register
2994 * rtl.h (allocate_reg_info): Declare.
2996 * PROJECTS: Remove entry for local spilling.
2998 * final.c (cleanup_subreg_operands): New function.
2999 (final_scan_insn): Use it.
3000 (alter_subreg): Clear the "used" field when we turn a SUBREG into
3002 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
3003 operands when reload has finished.
3004 * reload.h (cleanup_subreg_operands): Declare..
3005 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
3006 reload. Handled in reload itself.
3008 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3010 * reload1.c (verify_initial_offsets): New function.
3011 (reload): Call it after reload_as_needed. Also verify that the frame
3012 size stays constant during reload_as_needed.
3013 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
3015 * reload.h (struct insn_chain): Add need_operand_change element.
3016 * reload1.c (new_insn_chain): Clear it.
3017 (calculate_needs_all_insns): Set it; don't overload need_reload.
3018 (reload_as_needed): Use it.
3020 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
3021 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
3022 and reload_address_index_reg_class.
3023 (find_reloads_address_1): Likewise.
3024 * reload.h (reload_address_base_reg_class,
3025 reload_address_index_reg_class): Don't declare.
3026 * reload1.c (reg_old_renumber, pseudo_previous_regs,
3027 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
3028 (used_spill_regs): Now static.
3029 (reload_address_base_reg_class, reload_address_index_reg_class,
3030 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
3031 basic_block_needs, max_needs, group_size, group_mode, max_groups,
3032 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
3035 (init_reload): Delete code to compute base/index reg classes.
3036 (reload): Delete variable J.
3037 Delete code to manage basic_block_needs.
3038 Don't compute regs_explicitly_used.
3039 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
3040 pseudo_previous_regs.
3041 Initialize bad_spill_regs_global.
3042 Don't call order_regs_for_reload here.
3043 Don't initialize spill_reg_order and n_spills.
3044 Don't forbid explicitly used regs to be used for spill regs.
3045 Change main loop to infinite loop, with explicit break statements.
3046 Make SOMETHING_CHANGED variable local to that loop.
3047 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
3048 max_groups_insn, max_nongroups_insn, group_size, group_mode.
3049 Make sure spilled_speudos is cleared before calling spill_hard_reg or
3051 Don't call dump_needs.
3052 Delete code to reset potential_reload_regs.
3053 Delete code to terminate loop conditional on the global needs variables
3054 showing no further needs.
3055 (calculate_needs_all_insns): Return void. All callers changed.
3056 Initialize somehing_needs_elimination here, not in reload.
3057 Delete avoid_return_reg kludge.
3058 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
3059 All callers changed.
3060 Initialize the group_mode and group_size elements of the arg CHAIN.
3061 Delete code to manage basic_block_needs.
3062 Operate on elements of CHAIN instead of global variables.
3063 Delete avoid_return_reg kludge.
3064 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
3065 All callers changed.
3066 Operate on elements of CHAIN instead of global variables.
3067 Delete special SMALL_REGISTER_CLASSES code.
3068 Delete spill_failure code; now in new_spill_reg.
3069 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
3070 All callers changed.
3071 Operate on elements of CHAIN instead of global variables.
3072 (maybe_mark_pseudo_spilled): New static function.
3073 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
3074 All callers changed.
3075 Operate on elements of CHAIN instead of global variables.
3076 Call order_regs_for_reload here, not in reload.
3077 Initialize spill_reg_order and n_spills.
3078 Simplify test whether an asm insn is involved.
3079 Delete spill_failure code; now in new_spill_reg.
3080 Call maybe_mark_pseudo_spilled for everything marked as live in
3081 CHAIN. Merge CHAIN's used_spill_regs into the global variable
3083 (dump_needs): Take CHAIN arg. No longer static, to prevent the
3084 compiler from optimizing this function (now unused) away.
3085 Operate on elements of CHAIN instead of global variables.
3086 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
3088 Operate on elements of CHAIN instead of global variables.
3089 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
3090 take CHAIN arg. All callers changed.
3091 Operate on elements of CHAIN instead of global variables.
3092 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
3093 CHAIN, NONGROUP args. Return void. All callers changed.
3094 Verify caller isn't trying to spill a pseudo.
3095 Simplify test for illegal reg, just use bad_spill_regs.
3096 Generate better error messages.
3097 Operate on elements of CHAIN instead of global variables.
3098 Mark spilled register in CHAIN's used_spill_regs element.
3099 Don't call spill_hard_reg.
3100 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
3101 Mark spilled hard regs in bad_spill_regs_global.
3102 Mark affected pseudos in spilled_pseudos, but don't spill them.
3103 (ior_hard_reg_set): New static function.
3104 (finish_spills): Return int. All callers changed.
3105 Compute spill_reg_order, n_spills and spill_regs here. Also update
3106 regs_ever_live for regs used as spills.
3107 For every pseudo in spilled_pseudos, spill it and mark the previous
3108 hard reg it had in pseudo_previous_regs. Compute which hard regs
3109 arseudo): New static function.
3110 (order_regs_for_reload): Take CHAIN arg. All callers changed.
3111 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
3112 hard registers explicitly used across the current insn into the set.
3113 Compute hard_reg_n_uses taking only pseudos live across this insn
3115 Tweak sorting of potential_reload_regs.
3116 (compare_spill_regs): Delete function.
3117 (reload_as_needed): Don't sort the spill_regs array, it's computed
3118 in proper order in finish_spills.
3119 Delete avoid_return_reg kludge.
3120 Delete code to manage basic_block_needs.
3121 (allocate_reload_reg): Minor speed/readability tweaks.
3122 Operate on elements of CHAIN instead of global variables.
3123 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
3124 Delete avoid_return_reg kludge.
3125 Initialize reload_reg_used from CHAIN's used_spill_regs element.
3126 Delete unused label FAIL.
3127 (reload_combine): Replce reload_address_index_reg_class with
3129 Don't use used_spill_regs to determine information about lifetime of
3132 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
3134 * toplev.c (display_help): Ignore empty target specific
3135 options, and if -W is also specified on the command line then
3136 display undocumented options.
3138 * config/arm/arm.c: Updated with changes in devo sources.
3139 * config/arm/arm.h: Updated with changes in devo sources.
3140 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
3141 * config/arm/lib1thumb.asm: Add ELF support.
3143 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
3145 * collect2.c (aix64_flag): New variable.
3146 (main, case 'b'): Parse it.
3147 (GCC_CHECK_HDR): object magic number must match mode.
3148 (scan_prog_file): Only check for shared object if valid header.
3149 Print debugging if header/mode mismatch.
3151 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
3153 Added support for arm-elf-linux configuration, submitted by Philip
3154 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
3155 code developed by Catherine Moore <clm@cygnus.com>. The following
3158 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
3161 * configure: Regenerated.
3163 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
3164 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
3165 definitions conditional on their not having been already defined.
3167 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
3168 and .type directives, and add "(PLT)" qualification to function
3171 * config/arm/linux.h: Deleted. This file is now superceeded by
3172 either linux-elf.h or linux-aout.h.
3174 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
3175 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
3177 Move definitions from old linux.h file here.
3179 * config/arm/elf.h: New file. Generic ARM/ELF support.
3181 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
3183 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
3185 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
3186 using the 26bit APCS.
3188 * config/arm/unknown-elf.h: New file. Support for OS'es other
3189 than Linux with ELF.
3191 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
3194 * config/arm/coff.h: Include aout.h for basic assembler macros.
3195 Add support for -mstructure_size_boundary=<n> command line option.
3197 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
3198 command line option. Make macro definitions conditional on their
3199 not having been already defined.
3201 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
3202 command line option.
3205 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
3207 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
3208 has been changed to not include a newline. Use this macro instead.
3209 (output_enumeral_list, const_value_attribute, name_attribute,
3210 comp_dir_attribute, prototyped_attribute, producer_attribute,
3211 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
3212 dwarfout_file_scope_decl, generate_new_sfname_entry,
3213 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
3214 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
3216 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
3218 * combine.c (subst): Process the inputs to a parallel asm_operands
3221 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
3223 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
3225 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
3227 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
3229 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
3231 * version.c: Bump for snapshot.
3233 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
3235 * stmt.c (expand_fixup): Set fixup->before_jump to a
3236 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
3238 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3240 * Makefile.in (recog.o): Depend on toplev.h.
3241 (insn-emit.o): Depend on recog.h.
3242 (insn-peep.o): Depend on recog.h and insn-config.h.
3244 * combine.c (simplify_set): Remove unused variable `scratches'.
3246 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
3247 and `idx' in macro conditional controlling their use.
3249 * genemit.c (main): Make the generated output file include
3250 recog.h. Don't have it declare `insn_operand_constraint', since
3251 we get it from recog.h.
3253 * genpeep.c (main): Make the generated output file include
3254 insn-config.h and recog.h.
3256 * recog.c: Include toplev.h.
3257 (extract_insn): Remove unused variable `p'.
3259 * regclass.c (fix_register): Add missing braces around initializer
3261 (allocate_reg_info): Move variable `i' into the scope where it is
3262 used. Change its type to `size_t'.
3264 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3266 * reload.c (push_reload): When merging reloads, make sure
3267 that reload_in_reg and reload_in are from the same reload in
3270 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
3272 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
3273 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
3275 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
3277 * loop.c (loop_has_tablejump): New variable.
3278 (prescan_loop): Scan for it.
3279 (insert_bct): Replace explicit scan with use of it.
3280 * regclass.c (regclass): Restore loop variable j.
3281 (record_reg_classes): Deterine op_types modifiers and initialize
3282 classes[i] before matching constraints. Handle matching
3285 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
3287 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
3290 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3292 * mips.h (EXTRA_SPECS): Add missing initializers.
3294 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3296 * sparc.h (EXTRA_SPECS): Add missing initializers.
3297 (sparc_defer_case_vector): Provide a prototype.
3299 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
3300 comparing it to the result of a pointer subtraction.
3302 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3304 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
3305 the argument to (unsigned char).
3307 * alpha.h (EXTRA_SPECS): Add missing initializers.
3308 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
3311 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
3313 * flow.c (life_analysis_1): Enable "rescan" code after reload.
3314 (propagate_block): Delete dead code after reload.
3316 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
3317 back Oct 15, 1998 change.
3318 * haifa-sched.c (update_flow_info): Likewise.
3319 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
3321 * mn10200.md (truncated shift): Accept constant inputs too.
3323 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
3325 * machmode.h (mode_mask_array): No longer const.
3326 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
3328 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
3330 * frame.c: Somewhat explain `FDE'.
3331 Suggested by Brendan Kehoe
3333 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
3335 * expr.c (pending_chain): Move up.
3336 (save_expr_status): Do save pending_chain.
3337 (restore_expr_status): And restore it.
3338 * function.h (struct function): Add pending_chain.
3340 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3342 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
3343 did not match the code.
3345 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3347 * regclass.c (regclass): Break out some code into new function
3348 scan_one_insn, and into regclass_init.
3349 (init_cost): New static variable, moved out of regclass.
3350 (regclass_init): Initialize it here, not in .
3351 (scan_one_insn): New static function, broken out of regclass.
3352 * recog.c (apply_change_group): Break out some code into new
3353 function insn_invalid_p.
3354 (insn_invalid_p): New static fn, broken out of apply_change_group.
3356 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
3358 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
3359 reg_reloaded_contents matches incremented pseudo.
3361 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
3363 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3365 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
3366 addressing modes with side effects. These are currently
3367 placeholders for the C4x target.
3369 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3371 * loop.c (express_from): Make sure that when generating a PLUS of
3372 a PLUS, any constant expression appears on the outermost PLUS.
3374 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
3376 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
3377 works if "$(srcdir)" != ".".
3379 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
3381 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
3382 existing SUBREG if we can, otherwise abort.
3384 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
3386 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
3387 `restrict' is applied to a non-pointer variable.
3389 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
3391 * invoke.texi: Document -flang-isoc9x.
3393 * Makefile.in (OBJS): Add splay-tree.o.
3394 (c-common.o): Depend on rtl.h.
3395 (splay-tree.o): List dependencies and provide build rule.
3397 * rtl.h (record_alias_subset): New function.
3398 * alias.c: Include splay-tree.h.
3399 (alias_set_entry): New type.
3400 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
3401 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
3402 (mems_in_disjoin_alias_sets_p): New function.
3403 (alias_set_compare): Likewise.
3404 (insert_subset_children): Likewise.
3405 (get_alias_set_entry): Likewise.
3407 * tree.h (TYPE_RESTRICT): New macro.
3408 (TYPE_UNQUALIFIED): New manifest constant.
3409 (TYPE_QUAL_CONST): Likewise
3410 (TYPE_QUAL_VOLATILE): Likewise.
3411 (TYPE_QUAL_RESTRICT): Likewise.
3412 (tree_type): Add restrict_flag. Reduce count of free bits.
3413 (DECL_POINTER_ALIAS_SET): New macro.
3414 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
3415 (tree_decl): Add pointer_alias_set.
3416 (build_qualified_type): New function.
3417 (build_type_variant): Define in terms of build_qualified_type.
3418 * tree.c (set_type_quals): New function.
3419 (make_node): Initializae DECL_POINTER_ALIAS_SET.
3420 (build_type_attribute_variant): Use build_qualified_type and
3422 (build_type_variant): Rename, and modify, to become...
3423 (build_qualified_type): New function.
3424 (build_complex_type): Use set_type_quals.
3426 * c-tree.h (C_TYPE_OBJECT_P): New macro.
3427 (C_TYPE_FUNCTION_P): Likewise.
3428 (C_TYPE_INCOMPLETE_P): Likewise.
3429 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
3430 (c_apply_type_quals_to_decl): New function.
3431 (c_build_qualified_type): New function.
3432 (c_build_type_variant): Define in terms of c_build_qualified_type.
3433 (flag_isoc9x): Declare.
3434 * c-typeck.c (qualify_type): Use c_build_qualified_type.
3435 (common_type): Change to use TYPE_QUALS.
3436 (comptypes): Likewise.
3437 (convert_for_assignment): Likewise.
3438 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
3439 * c-decl.c (flag_isoc9x): Define.
3440 (c_decode_option): Handle -flang-isoc9x.
3441 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
3442 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
3443 * c-lex.c (init_lex): Deal with restrict.
3444 (init_lex): Don't treat restrict as a reserved word in
3445 -traditional mode, or without -flang-isoc9x.
3446 * c-lex.h (rid): Add RID_RESTRICT.
3447 * c-parse.gperf (restrict, __restrict, __restrict__): Make
3448 equivalent to RID_RESTRICT.
3449 * c-parse.in (TYPE_QUAL): Update comment.
3450 * c-common.c: Include rtl.h.
3451 (c_find_base_decl): New function.
3452 (c_build_type_variant): Rename, and modify, to become ...
3453 (c_build_qualified_type): New function.
3454 (c_apply_type_quals_to_decl): Likewise.
3455 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
3456 a particular alias set for the reference.
3457 * toplev.c (documented_lang_options): Add -flang-isoc9x.
3459 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
3461 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
3462 command line switches.
3464 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
3466 * reload.c (loc_mentioned_in_p): Add missing braces to bind
3469 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
3471 * gcc.c (option_map): Added --classpath and --CLASSPATH.
3473 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
3475 * regclass.c (fix_register): Add error message.
3476 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
3479 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3481 * c-decl.c (warn_missing_noreturn): New global variable.
3482 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
3483 (finish_function): Implement missing noreturn warning.
3485 * c-tree.h (warn_missing_noreturn): Declare extern.
3487 * invoke.texi: Document new flags.
3489 * toplev.c (documented_lang_options): Add description.
3491 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3493 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
3494 loop optimization stable for the C4x.
3495 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
3496 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
3497 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
3499 (c4x_address_conflict): Be more paranoid when packing a volatile
3500 memref in a parallel load/store.
3502 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3504 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
3505 repeat_block_filler): Deleted.
3506 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
3507 Condition code not set if destination register from 'c' class.
3508 (*subbqi3_carry_clobber): Fix typo.
3510 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3512 * reorg.c (steal_delay_list_from_target) Check for insns that
3513 modify the condition codes and effect the direction of the jump
3516 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
3518 * function.c (purge_addressof_1): Replace call to
3519 emit_insns_before() with emit_insn_before().
3521 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
3523 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
3525 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3527 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
3529 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
3531 * gcse.c (compute_hash_table): Correctly identify hard regs which are
3532 clobbered across calls.
3534 * loop.c (scan_loop): Be more selective about what invariants are
3535 moved out of a loop.
3537 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
3539 * version.c: Bump for snapshot.
3541 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
3543 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
3544 static eh_context structure.
3546 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3548 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
3550 (try_combine): Don't update max_scratch.
3551 * flow.c (max_scratch, num_scratch): Delete variables.
3552 (life_analysis_1): Don't initialize max_scratch.
3553 (propagate_block): Don't update max_scratch.
3554 (mark_set_1): Don't increment num_scratch.
3555 * regs.h (max_scratch): Delete declaration.
3557 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
3559 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
3560 is nonzero. This is temporary!
3562 * sched.c (update_flow_info): Handle death notes made invalid by
3563 instruction splitting. Partially reverts Oct 15, 1998 patch.
3564 * haifa-sched.c (update_flow_info): Likewise.
3566 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
3568 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
3569 if it has a nonzero DECL_INITIAL.
3571 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3573 * Makefile.in (flow.o): Depend on recog.h.
3575 * cpplib.h (directive_table): Add missing initializiers.
3576 (finclude): Change type of variable `bsize' to size_t.
3578 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
3580 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
3582 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
3583 `int' when comparing against one.
3584 (cpp_file_line_for_message): Mark parameter `pfile' with
3586 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
3588 * flow.c: Include recog.h.
3589 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
3591 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
3592 `f' with ATTRIBUTE_UNUSED.
3593 (reposition_prologue_and_epilogue_notes): Likewise.
3595 * genopinit.c (gen_insn): Cast argument of ctype functions to
3598 * haifa-sched.c: Include recog.h.
3599 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
3600 comparing against one.
3602 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
3604 * mips-tfile.c (parse_end): Cast the argument of ctype function to
3606 (parse_ent): Likewise.
3607 (parse_input): Likewise.
3609 * optabs.c (init_libfuncs): Likewise.
3611 * protoize.c (find_rightmost_formals_list): Likewise.
3613 * recog.h (const_double_operand): Fix typo in prototype.
3615 * tlink.c (scan_linker_output): Cast the argument of ctype
3616 function to `unsigned char'.
3618 * toplev.c (check_lang_option): Cast the result of `strlen' to
3619 `int' when comparing against one.
3621 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
3623 * gcse.c (dump_cuid_table): Correct typo.
3625 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
3627 * toplev.c (display_help): Prepend '-m' to target specific
3629 (check_lang_option): Ignore text after end of first word of a
3630 language specific option.
3632 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3634 * reload1.c (reg_used_by_pseudo): New static variable.
3635 (choose_reload_regs): Initialize it.
3636 Use it instead of testing spill_reg_order to determine whether a
3637 pseudo is live in a hard register across the current insn.
3638 Fix a typo in a reference to reload_reg_rtx.
3640 * flow.c (propagate_block): Replace code that computes and uses
3641 regs_sometimes_live with simpler code that just walks the set of
3642 currently live registers.
3644 * Makefile.in (insn-extract.o): Fix dependencies.
3645 * genextract.c (main): Generate includes for insn-config.h and
3647 Delete generation of declarations which are now in recog.h.
3648 * genrecog.c (main): Delete generation of definitions which are
3650 * local-alloc.c (block_alloc): Use extract_insn and the variables
3651 it sets up instead of looking up values by insn_code.
3652 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
3653 recog_dup_num): Define here instead of generating the definition in
3655 (recog_n_operands, recog_n_dups, recog_n_alternatives,
3656 recog_operand_mode, recog_constraints, recog_operand_address_p):
3658 (extract_insn): New function.
3659 * recog.h (extract_insn): Declare function.
3660 (which_alternative, recog_n_operands, recog_n_dups,
3661 recog_n_alternatives, recog_operand_mode, recog_constraints,
3662 recog_operand_address_p): Declare variables.
3663 * regclass.c (n_occurrences): New static function.
3664 * reload.c (n_occurrences): Delete function.
3665 (find_reloads): Use extract_insn.
3666 * reload.h (n_occurrences): Delete declaration.
3668 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
3670 * reload1.c (reload_as_needed): Fix test for when to call
3671 update_eliminable_offsets.
3673 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3675 Fix consistency problems with reg_equiv_{mem,address};
3676 Improve reload inheritance;
3678 * reload.c (reload_out_reg): New variable.
3679 (loc_mentioned_in_p, remove_address_replacements): New functions.
3680 (remove_replacements): Deleted.
3681 (push_reload): Set reload_out_reg[i].
3682 When merging, also set reload_{in,out}_reg[i], and remove
3683 duplicate address reloads.
3684 (combine_reloads): Copy reload_out_reg[i].
3685 (find_reloads): Do make_memloc substitution also when
3686 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
3688 Include *recog_operand_loc in commutativity operand changes.
3689 Generate optional output reloads.
3690 Delete reference to n_memlocs. Don't set *recog_operand_loc before
3691 processing operands. Call make_memloc in reg_equiv_address code.
3692 Set *recog_operand_loc only after processing operands, and only
3693 if replace is true. Return a value.
3694 When changing address reload types for operands that didn't get
3695 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
3696 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
3697 Don't emit USEs for pseudo SUBREGs when not replacing.
3698 (find_reloads_address): Do make_memloc substitution also when
3699 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
3701 (find_reloads_toplev): Likewise.
3702 Call make_memloc in reg_equiv_address code.
3703 (debug_reload_to_stream): Add code to output reload_out_reg.
3704 (make_memloc): Delete local variable i, ifdefed out code, and
3705 references to memlocs and n_memlocs.
3706 (memlocs, n_memlocs): Delete.
3707 (push_secondary_reload): Clear reload_out_reg.
3708 (find_reloads_address_1): Provide memrefloc argument to all calls
3709 to find_reloads_address.
3710 In AUTO_INC code, handle non-directly addressable equivalences properly.
3711 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
3712 (find_reloads): Add return type.
3713 (remove_address_replacements, deallocate_reload_reg): Declare.
3714 * reload1.c (num_not_at_initial_offset): No longer static.
3715 (delete_address_reloads, delete_address_reloads_1): Likewise.
3716 (deallocate_reload_reg): New function.
3717 (spill_reg_stored_to): New array.
3718 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
3719 (eliminate_regs_in_insn): Move assignments of previous_offset and
3720 max_offset fields, and recalculation of num_not_at_initial_offset
3721 into new static function:
3722 (update_eliminable_offsets) .
3723 (reload_as_needed): Call update_eliminable_offsetss after calling
3725 Call forget_old_reloads_1 with contents of reloaded auto_inc
3726 expressions if the actual addressing can't be changed to match the
3728 (choose_reload_regs): For inheritance, replace
3729 reload_reg_free_before_p test with reload_reg_used_at_all test, and
3730 remove stand-alone reload_reg_used_at_all test.
3731 Use reload_out_reg to determine which reload regs have output reloads.
3732 Treat reload_override_in more similar to inherited reloads.
3733 Handle (subreg (reg... for inheritance.
3734 For flag_expensive_optimizations, add an extra pass to remove
3735 unnecessary reloads from known working inheritance.
3736 Delete obsolete code for pseudos replaced with MEMs.
3737 Handle inheritance from auto_inc expressions.
3738 (emit_reload_insns): If reload_in is a MEM, set OLD to
3740 Don't reload directly from oldequiv; if it's a pseudo with a
3741 stack slot, use reload_in[j].
3742 Check that reload_in_reg[j] is a MEM before replacing reload_in
3743 from reg_reloaded_contents.
3744 Include non-spill registers in reload inheritance processing.
3745 Also try to use reload_out_reg to set spill_reg_store /
3746 reg_last_reload_reg.
3747 In code to set new_spill_reg_store, use single_set to find out if
3748 there is a single set.
3749 Add code that allows to delete optional output reloads.
3750 Add code to allow deletion of output reloads that use no spill reg.
3751 At the end, set reload_override_in to oldequiv.
3752 Also call delete_output_reload if reload_out_reg is equal to old
3754 Add code to call delete_output_reload for stores with no matching load.
3755 Set / use spill_reg_stored_to.
3756 Handle case where secondary output reload uses a temporary, but
3757 actual store isn't found.
3758 When looking for a store of a value not loaded in order to call
3759 delete_output_reload, count_occurences should return 0 for no
3760 loads; but discount inherited input reloadill_reg_stored_to.
3761 Do checks for extra uses of REG. Changed all
3763 Use delete_address_reloads.
3764 (reload): Take return value of find_reloads into account.
3765 If a no-op set needs more than one reload, delete it.
3766 (reload_reg_free_before_p): RELOAD_FOR_INPUT
3767 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
3768 for the same operand.
3769 (clear_reload_reg_in_use): Check for other reloads that keep a
3771 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
3772 RELOAD_FOR_OPADDR_ADDR.
3773 Take into account when an address address reload is only needed
3774 for the address reload we are considering.
3775 (count_occurrences): Use rtx_equal_p for MEMs.
3776 (inc_for_reload): Return instruction that stores into RELOADREG.
3777 New argument two, IN, and rtx. Changed all callers.
3778 (calculate_needs_all_insns, reload_as_needed):
3779 Don't clear after_call for a CLOBBER.
3780 Keep track of how many hard registers need to be copied from
3781 after_call, and don't clear after_call before we have seen
3782 that much copies, or we see a different instruction.
3784 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
3786 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
3787 after reload has completed.
3789 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
3791 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
3792 a macro name and the next token with a single blank if that whitespace
3793 is in a macro buffer and the next token is not '('.
3795 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
3797 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
3799 (skip_if_group): Ditto.
3800 (skip_to_end_of_comment): Ditto.
3802 (discard_comments): Ditto.
3803 (change_newlines): Ditto.
3805 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
3807 * c-lex.c (yylex): Fix unaligned access of wchar_t.
3809 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
3811 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
3812 (TARGET_OPTIONS): Add --help documentation.
3814 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3816 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
3818 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
3820 * fixinc/* Moved in from ../contrib directory in preparation
3821 for integrating it into the normal build process. In particular,
3822 fixinc/Makefile.in must be config-ed into the build directory
3823 as fixinc/Makefile. Proposed patches to ./Makefile.in and
3824 ./configure.in will be "in the mail" momentarily.
3826 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
3828 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
3829 accidently walk into the free list. Comment how that can happen.
3830 (invalidate): Fix indentation.
3832 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3833 Jeffrey A Law (law@cygnus.com)
3835 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
3836 reload. Never perform rescans of the insn chain after reload.
3837 (propagate_block): Do not delete insn or create new autoinc addressing
3840 * jump.c (jump_optimize): Unconditionally use the code that was
3841 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
3842 * reload1.c (reload): When reloading is finished, delete all
3843 REG_DEAD and REG_UNUSED notes.
3844 (emit_reload_insns): Delete all code that was conditional on
3845 PRESERVE_DEATH_INFO_REGNO_P.
3846 (no_longer_dead_regs): Delete variable.
3847 (reload_cse_delete_death_notes): Delete function.
3848 (reload_cse_no_longer_dead): Delete function.
3849 (reload_cse_regs_1): Delete all code to handle deletion of death
3851 (reload_cse_noop_set_p): Likewise.
3852 (reload_cse_simplify_set): Likewise.
3853 (reload_cse_simplify_operands): Likewise.
3854 (reload_cse_move2add): Likewise.
3855 * reorg.c (used_spill_regs): Delete declaration.
3856 (max_label_num_after_reload): Delete declaration.
3857 (find_dead_or_set_registers): Don't assume that spill regs are
3858 dead at a CODE_LABEL.
3859 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
3861 * sched.c (sched_analyze_insn): Likewise.
3862 (update_flow_info): Likewise.
3863 * haifa-sched.c (sched_analyze_insn): Likewise.
3864 (update_flow_info): Likewise.
3865 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
3866 * toplev.c (max_label_num_after_reload): Delete variable.
3867 (rest_of_compilation): Don't set max_label_num_after_reload.
3868 Call life_analysis after reload_cse_regs if optimizing.
3869 * config/gmicro/gmicro.h: Delete comment referring to
3870 PRESERVE_DEATH_INFO_REGNO_P.
3871 * config/i386/i386.h: Likewise.
3872 * config/m88k/m88k.h: Likewise.
3873 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
3874 * config/sh/sh.h: Likewise.
3876 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
3878 * loop.c (strength_reduce): Restore marking bct_p as
3880 * rs6000.c (optimization_options): Change #ifdef HAIFA to
3881 HAVE_decrement_and_branch_on_count.
3882 (small_data_operand): Remove TARGET_ELF condition for marking
3883 parameters ATTRIBUTE_UNUSED.
3885 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
3887 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
3888 (SELECT_SECTION): Resync with svr4.h.
3890 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
3892 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
3895 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
3897 * c-pragma.c (handle_pragma_token): Test for null tree before
3898 dereferencing TREE_CODE.
3900 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3902 * config/c4x/c4x.c: Convert to use GEN_INT.
3903 (c4x_parallel_process): Rework to handle new repeat loop structure.
3905 * config/c4x/c4x.md: Convert to use GEN_INT.
3906 (rptb_end): Convert to use GE test. Replace uses with clobbers.
3907 (decrement_and_branch_on_count): Likewise.
3909 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
3910 loop.c has the desired functionality.
3911 (rc_reg_operand): New prototype.
3913 * config/c4x/t-c4x: Can now build all front ends.
3915 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
3917 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
3919 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
3921 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
3922 * config/t-rtems: Do not install assert.h -- use newlib's.
3924 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3926 * combine.c (combine_instructions): When finished, call init_recog.
3927 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
3929 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
3931 * toplev.c: If flag_syntax_only, don't open or write assembler file.
3933 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3935 * cppalloc.c (memory_full): Mark function prototype with
3938 * demangle.h (collect_exit): Likewise.
3940 * fix-header.c (v_fatal, fatal): Likewise.
3942 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
3945 * gcov.c (print_usage): Likewise.
3947 * genattr.c (fatal, fancy_abort): Likewise.
3949 * genattrtab.c (fatal, fancy_abort): Likewise.
3951 * gencodes.c (fatal, fancy_abort): Likewise.
3953 * genconfig.c (fatal, fancy_abort): Likewise.
3955 * genemit.c (fatal, fancy_abort): Likewise.
3957 * genextract.c (fatal, fancy_abort): Likewise.
3959 * genflags.c (fatal, fancy_abort): Likewise.
3961 * genopinit.c (fatal, fancy_abort): Likewise.
3963 * genoutput.c (fatal, fancy_abort): Likewise.
3965 * genpeep.c (fatal, fancy_abort): Likewise.
3967 * genrecog.c (fatal, fancy_abort): Likewise.
3969 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
3970 __sjpopnthrow, __throw): Likewise.
3972 * objc/objc-act.c (objc_fatal): Likewise.
3974 * protoize.c (usage, aux_info_corrupted,
3975 declare_source_confusing): Likewise.
3977 * rtl.c (dump_and_abort): Likewise.
3979 * rtl.h (sets_cc0_p): Likewise.
3981 * toplev.c (float_signal, pipe_closed): Likewise.
3983 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3985 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
3986 when generating the decision tree for the general case.
3988 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
3989 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
3991 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3993 * Makefile.in (sched.o): Depend on recog.h.
3995 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
3996 (unsigned) when comparing against one.
3997 (find_base_value): Likewise.
3998 (record_base_value): Cast variable `regno' to (unsigned) when
3999 comparing against one. Cast the result of REGNO() macro to
4000 (unsigned) when comparing against one.
4001 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
4003 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
4004 variable where an unsigned index is needed.
4006 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
4007 before comparing against one.
4009 * collect2.c: Add prototypes for functions `error', `fatal' and
4010 `fatal_perror'. Make these functions take variable arguments
4011 instead of faking it with a fixed number of args.
4012 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
4015 * combine.c (can_combine_p): Mark parameter `pred' with
4017 (find_split_point): Cast variable `src' to (unsigned
4018 HOST_WIDE_INT) when comparing against one.
4019 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
4020 (simplify_logical): Likewise.
4021 (force_to_mode): Cast result of INTVAL() macro to (unsigned
4022 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
4023 HOST_WIDE_INT) in shift.
4024 (simplify_and_const_int): Cast result of INTVAL() macro to
4025 `unsigned HOST_WIDE_INT' when comparing against one.
4026 (merge_outer_ops): Cast variable const0 to `unsigned
4027 HOST_WIDE_INT' when comparing against the result of
4028 GET_MODE_MASK() macro.
4029 (simplify_comparison): Likewise for variable `c0'. Cast variable
4030 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
4031 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
4032 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
4033 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
4034 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
4035 comparing against one.
4036 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
4038 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
4039 macro to `unsigned HOST_WIDE_INT' when comparing against one.
4040 (output_block_move): Cast `sizeof' expression to (int) when
4041 comparing against one.
4042 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
4044 (save_restore_insns): Cast `base_offset' to `long' to match format
4045 specifier in fprintf.
4047 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
4048 to `enum machine_mode'.
4050 * flow.c (life_analysis_1): Remove unused variable `insn'.
4052 * gcc.c (translate_options): Move variables `j' and `k' into the
4053 scope in which they are used. Change their types to `size_t'.
4054 (set_spec): Cast the argument of ctype macro to `unsigned char'.
4055 (read_specs): Likewise.
4056 (process_command): Cast `sizeof' to (int) when comparing against one.
4057 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
4058 (handle_braces): Cast both sides of `==' expression to `long' to
4059 ensure sign matching.
4060 (main): Cast variable `i' to `int' when comparing against one.
4062 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
4063 int to size_t. Cast variable `i' to size_t when comparing against
4066 * genattrtab.c (convert_set_attr_alternative): Remove unused
4067 parameter `insn_code'. All callers changed.
4068 (convert_set_attr): Likewise.
4070 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
4071 size_t when comparing against one. Likewise for variable `len'.
4073 * global.c (global_alloc): Cast variable `max_regno' to size_t
4074 when comparing against one. Likewise for variable `max_allocno'.
4076 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
4078 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
4079 `set' with ATTRIBUTE_UNUSED.
4080 (find_free_reg): Cast `sizeof' expression to (int) when comparing
4083 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
4084 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
4085 (get_condition): Cast variable `const_val' to `unsigned
4086 HOST_WIDE_INT' when comparing against one. Cast unsigned
4087 expression to HOST_WIDE_INT when comparing against one.
4088 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
4089 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
4090 `unsigned' when comparing against one.
4092 * protoize.c (is_id_char): Change type of parameter `ch' to
4094 (munge_compile_params): Cast argument of ctype macro to (const
4096 (process_aux_info_file): Cast variable `aux_info_size' to int when
4097 comparing against one.
4098 (forward_to_next_token_char): Cast argument of ctype macro to
4099 `const unsigned char'.
4100 (edit_formals_lists): Likewise.
4101 (find_rightmost_formals_list): Likewise.
4102 (add_local_decl): Likewise.
4103 (add_global_decls): Likewise.
4104 (edit_fn_definition): Likewise.
4105 (do_cleaning): Likewise.
4106 (scan_for_missed_items): Likewise.
4107 (edit_file): Cast variable `orig_size' to (int) when comparing
4109 (main): Cast argument of ctype macro to `const unsigned char'.
4111 * recog.c (const_int_operand): Mark parameter `mode' with
4114 * regclass.c (record_reg_classes): Change type of variable `c' to
4115 `unsigned char'. Cast `char' array index to `unsigned char'.
4117 * reload.c (push_secondary_reload): Cast argument to
4118 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
4120 * reload1.c (calculate_needs): Cast `char' array index to
4122 (set_label_offsets): Change type of variable `i' to unsigned int.
4123 Cast result of XVECLEN() macro to unsigned when comparing against
4125 (mark_not_eliminable): Change type of variable `i' to unsigned.
4126 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
4127 when comparing against one.
4128 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
4129 comparing against one.
4130 (choose_reload_regs): Hide unused label `fail'.
4131 (reload_cse_simplify_operands): Cast `char' array index to
4133 (reload_combine_note_store): Mark parameter `set' with
4134 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
4136 (reload_cse_move2add): Remove unused variable `src2'.
4138 * sched.c: Include recog.h.
4139 (sched_note_set): Remove unused parameter `b'. All callers
4141 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
4142 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
4143 when comparing against one.
4145 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
4146 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
4147 comparing against one.
4149 * unroll.c (precondition_loop_p): Remove unused parameter
4150 `loop_end'. All callers changed.
4152 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4154 * reload1.c (maybe_fix_stack_asms): New static function.
4157 * reload.h (compute_use_by_pseudos): Declare.
4159 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
4160 (something_needs_reloads): Delete variable.
4161 (finish_spills): New function.
4162 (compute_use_by_pseudos): New function.
4164 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
4165 Use the reload_insn_chain instead of walking the rtl directly.
4167 (reload): Allocate and free spilled_pseudos.
4168 Ensure that all calls of spill_hard_reg are followed by a call to
4170 Use the insns_need_reload list instead of something_needs_reloads
4171 to find out if reload_as_needed must be called.
4172 Clear unused_insn_chains at the end.
4174 (calculate_needs_all_insns): Lose FIRST parameter. All callers
4176 Delete code to keep track of current basic block.
4177 Walk reload_insn_chain instead of the rtl structure. Build the
4178 insns_need_reload chain.
4179 Remember which insns need reloading/elimination by setting the
4180 appropriate fields in struct insn_chain, not by putting modes on the
4183 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
4184 arg INSN. All callers changed.
4185 Delete declaration of struct needs.
4186 Don't set something_needs_reloads.
4187 Record insn needs in the CHAIN argument.
4189 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
4191 (reload_as_needed): Lose FIRST arg. All callers changed.
4192 Walk the reload_insn_chain instead of the rtx structure.
4193 Delete code to keep track of current basic block.
4194 Rename one of the NEXT variables to OLD_NEXT.
4196 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
4198 (choose_reload_regs): Likewise.
4200 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
4203 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
4204 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
4205 (hard_regs_live, hard_regs_need_restore): Delete variables.
4206 (n_regs_saved): Now static.
4207 (referenced_regs, this_insn_sets): New variables.
4209 (setup_save_areas): Restructure the code a bit.
4211 (restore_referenced_regs): Delete function.
4212 (mark_referenced_regs): New function, similar to the old
4213 restore_referenced_regs, but mark registers in referenced_regs.
4215 (clear_reg_live): Delete function.
4216 (mark_set_regs): Renamed from set_reg_live. All callers changed.
4217 Only mark registers in this_insn_sets.
4219 (save_call_clobbered_regs): Rework this function to walk the
4220 reload_insn_chain instead of using the list of instructions directly.
4221 Delete code to keep track of register lives, compute live regs on the
4222 fly from information in the chain.
4223 Instead of calling restore_referenced_regs, use mark_referenced_regs,
4224 then walk the set it computes and call insert_restore as appropriate.
4226 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
4228 Restructure the code a bit. Test hard_regs_saved instead of
4229 hard_regs_need_restore.
4230 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
4231 args. All callers changed.
4232 Restructure the code a bit. Use TO_SAVE to determine which regs to
4233 save instead of more complicated test.
4234 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
4236 Create a new insn_chain structure for the new insn and place it
4239 * rtl.texi: Update documentation to reflect that reload no longer
4240 puts modes on the insns.
4242 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
4244 * function.c (purge_addressof_1): Force the first argument of a
4245 CALL insn to memory.
4247 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
4249 * rtl.h: Delete duplicate prototypes. Add some missing
4251 * rtlanal.c: (for_each_rtx): Formatting tweak.
4253 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4255 * real.c (emdnorm and etoasc): Disable round to even for c4x target
4256 to be compatible with TI compiler.
4258 * Makefile.in (USER_H): Add va-c4x.h to definition.
4260 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
4262 * function.c (purge_addressof_1): Fix typo in inequality: do
4263 bitfield optimization for equal mode sizes.
4264 * expmed.c (store_bit_field): Don't take subregs of subregs in
4265 the movstrict case. Tidy a potential problem in the multi-word case.
4266 (extract_bit_field): Likewise.
4268 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4270 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
4272 Compute max_uid_for_flow by calling get_max_uid after the scan.
4273 (find_basic_blocks_1): Don't emit NOPs here.
4275 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
4277 * alias.c (base_alias_check): Accept new args for the modes of the
4278 two references. Use them to determine if an AND can overlap. Update
4280 (memrefs_conflict_p): Assume sizes are aligned, and uses them
4281 to determine if an AND can overlap.
4283 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
4285 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
4286 check. Add comment to document problems with TARGET_SUN_FPA version
4288 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
4290 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4292 * Makefile.in (gencheck.o): Depend on gansidecl.h.
4294 * c-common.c (print_char_table): Add missing initializers.
4295 (scan_char_table): Likewise.
4296 (time_char_table): Likewise.
4298 * c-decl.c (c_decode_option): Mark parameter `argc' with
4300 (declare_parm_level): Mark parameter `definition_flag' with
4303 * c-lex.c (readescape): Use `(unsigned)1' in shift.
4304 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
4307 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
4309 (emit_call_1): Mark parameters `fndecl' and `funtype' with
4311 (expand_call): Cast result of MIN() to (unsigned int) when
4312 comparing against an unsigned value.
4314 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
4316 (make_definition): Remove unused parameter `op'. All callers
4318 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
4319 comparing against the result of pointer arithmetic.
4321 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
4322 when comparing against one.
4324 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
4325 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
4327 (output_die): Move variable `i' into the scope in which it is
4328 used. Change its type to `unsigned'.
4329 (output_die): Cast the result of `strlen' to (int) when passing it
4330 to ASM_OUTPUT_ASCII().
4331 (output_pubnames): Likewise.
4332 (output_line_info): Likewise.
4334 * emit-rtl.c (global_rtl): Add missing initializers.
4336 * explow.c (promote_mode): Mark parameter `for_call' with
4339 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
4340 `unsigned HOST_WIDE_INT' when comparing against one.
4341 (synth_mult): Change type of variable `cost' to int.
4342 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
4344 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
4345 when comparing against one.
4346 (get_inner_reference): Change variable `alignment' to unsigned.
4347 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
4348 int) when comparing against one.
4349 (expand_builtin_setjmp): Change type of variable `i' to size_t.
4351 * fold-const.c (div_and_round_double): Cast BASE to
4352 (HOST_WIDE_INT) when comparing against one.
4354 * gencheck.c: Include gansidecl.h.
4355 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
4357 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
4358 `tcode' with ATTRIBUTE_UNUSED.
4360 * real.c (edivm): Cast constant value to (unsigned long) in
4361 expression compared against an unsigned value.
4363 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
4364 comparing against one.
4365 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
4366 when comparing against one.
4368 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
4369 (unsigned int) when comparing against one. Likewise for
4371 (smallest_mode_for_size): Likewise.
4372 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
4373 (restore_storage_status): Likewise.
4375 * toplev.c (debug_args): Add missing initializer.
4376 (f_options): Spelling correction. Add missing initializers.
4377 (documented_lang_options): Likewise.
4378 (debug_end_source_file): Mark parameter `lineno' with
4381 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
4382 `decl' and `type' with ATTRIBUTE_UNUSED.
4384 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
4385 when comparing against one.
4386 (assemble_variable): Mark parameter `top_level' with
4388 (assemble_external_libcall): Mark parameter `fun' with
4390 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
4393 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
4395 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
4396 Replace use of r5 with use of r19.
4398 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
4400 * config/v850/v850.c (compute_register_save_size): Allow for the
4401 fact that helper functions save all registers, not just those used
4404 Replace constant 31 with macro LINK_POINTER_REGNUM.
4406 * config/v850/v850.md: Use 'indirect_operand' rather than
4407 'memory_operand' for bit test/set/clear patterns.
4409 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
4411 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
4412 * varasm.c (assemble_start_function et al): Don't call
4413 ASM_GLOBALIZE_LABEL for weak symbols.
4415 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
4417 * cse.c (equiv_constant): Check for NULL return from
4418 gen_lowpart_if_possible().
4420 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
4422 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
4424 * collect2.c (main): Pass -EL/-EB through to the compiler.
4426 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4428 * expr.c (push_block): Handle targets where the stack grows
4429 to higher addresses, but args grow to lower addresses and
4430 ACCUMULATE_OUTGOING_ARGS is not defined.
4432 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
4434 * config/v850/v850.c (print_operand): Extend meaning
4435 of 'c' operands to support .vtinherit.
4437 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4439 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
4440 Added ATTRIBUTE_UNUSED to unused function arguments.
4441 (rc_reg_operand): New predicate.
4442 (c4x_rptb_insert): New function.
4443 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
4444 (c4x_optimization_options): New function.
4446 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
4447 (decrement_and_branch_on_count): New pattern.
4448 (rptb_top): Modified pattern to work with BCT optimization.
4450 * config/c4x/c4x.h (RC_REG): New register class.
4451 (rc_reg_operand): Define prototype.
4452 (IS_RC_REG): New macro.
4453 (IS_RC_OR_PSEUDO_REG): New macro.
4454 (IS_RC_OR_PSEUDO_REGNO): New macro.
4455 (OPTIMIZATION_OPTIONS): Define.
4457 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
4459 * collect2.c (extract_init_priority): No priority is 65535.
4461 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
4463 * Makefile.in (build_tooldir): new variable, same as old
4464 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
4465 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
4466 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
4468 * configure.in (gxx_include_dir): set default based on unlibsubdir
4469 * Makefile.in (tooldir): ditto
4470 (cccp.o, cpplib.o): use unlibsubdir implicitly through
4471 gxx_include_dir, includedir and tooldir
4472 (protoize.o, unprotoize.o): ditto
4474 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
4476 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
4478 * config/arm/thumb.c (thumb_override_options): Add warning about
4479 PIC code not being supported just yet.
4481 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
4483 * flow.c: Update comment.
4484 (notice_stack_pointer_modification): New static function.
4485 (record_volatile_insns): Use it.
4486 (mark_regs_live_at_end): Mark the stack pointer as alive
4487 at the end of the function if current_function_sp_is_unchanging
4489 (life_analysis_1): Set current_function_sp_is_unchanging.
4490 * function.c: Define it.
4491 (init_function_start): Initialize it.
4492 * output.h: Declare it.
4493 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
4494 the stack pointer as alive at the end of the function if
4495 current_function_sp_is_unchanging is set.
4496 * i386.c (ix86_epilogue): Optimize the restoring
4497 of the stack pointer.
4499 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
4501 * version.c: Bump for snapshot.
4503 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
4505 * c-pragma.c (handle_pragma_token): If passed a token instead
4506 of a tree, use that as the pack value.
4508 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
4510 * flow.c (find_basic_blocks_1): Fix prototype.
4512 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
4514 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
4515 (struct tree_decl): New fields no_check_memory_usage.
4516 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
4517 (init_attributes): Register it as a new attribute.
4518 (decl_attributes): Set flags on functions given that attribute.
4519 * c-decl.c (duplicate_decls): Merge new attribute.
4520 * expr.h (current_function_check_memory_usage): Declare new var.
4521 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
4522 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
4523 current_function_check_memory_usage.
4524 * function.h: Add field to struct function.
4525 * function.c (current_function_check_memory_usage): Define it.
4526 (push_function_context_to, pop_function_context_from): Save and
4528 (expand_function_start): Set it, based on global flag and function
4531 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
4532 check non-automatic variables, to permit detection of writes to
4533 read-only locations in embedded systems without memory management.
4534 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
4535 when emitting chkr_set_right_libfunc call, even if the argument is
4536 BLKmode or variable-sized; don't abort.
4538 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
4539 symbols in Pmode, not VOIDmode.
4541 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
4543 * cppexp.c: When forcing unsigned comparisons, cast both sides
4546 * cpphash.h: Move static declaration of hashtab[]...
4547 * cpphash.c: ...here.
4549 * cpplib.c: Cast difference of two pointers to size_t before
4550 comparing it to size_t. Cast signed to unsigned
4551 before comparing to size_t. (FIXME: struct argdata should use
4552 unsigned buffer sizes.)
4553 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
4554 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
4555 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
4556 size_t before comparison.
4558 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
4560 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
4561 (find_basic_blocks_1): Similarly.
4562 * output.h (find_basic_blocks): Fix prototype.
4563 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
4564 find_basic_blocks anymore.
4566 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
4568 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
4569 (sbitmap_free, sbitmap_vector_free): New macros.
4570 * output.h (rtl_dump_file): Declare.
4572 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
4574 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
4576 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4578 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
4580 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
4581 (divide): Remove unused variable `tmp'.
4582 (si_to_float): Cast numeric constant to (SItype) before comparing
4585 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
4587 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
4588 * gcc.c (add_preprocessor_option): Correct typo when allocating
4589 memory, sizeof() argument had one too many `*'.
4590 (add_assembler_option): Likewise.
4591 (add_linker_option): Likewise.
4592 * gcov.c (output_data): Likewise.
4593 * local-alloc.c (memref_used_between_p): Likewise.
4594 (update_equiv_regs): Likewise.
4595 * loop.c (strength_reduce): Likewise.
4596 * reg-stack.c (record_asm_reg_life): Likewise.
4597 (subst_asm_stack_reg): Likewise.
4598 * reorg.c (dbr_schedule): Likewise.
4600 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4602 * flow.c (life_analysis_1): Break out some functions.
4603 (find_basic_blocks_1): Likewise. Also move some variables out and
4605 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
4606 new static var nonlocal_label_list with it.
4607 (active_eh_region, nested_eh_region, label_value_list,
4608 nonlocal_label_list): New static variables.
4609 (make_edges, delete_unreachable_blocks, delete_block): New static
4610 functions, broken out of find_basic_blocks_1.
4611 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
4612 noop_move_p): New static functions, broken out of life_analysis_1.
4614 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
4616 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
4617 Take extra care for op0 now possibly being a subreg.
4618 (extract_bit_field): Likewise.
4619 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
4620 the reg to memory if there is no equal sized integral mode.
4621 * stor-layout.c (int_mode_for_mode): New function.
4622 * machmode.h: Prototype it.
4624 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
4626 * global.c (build_insn_chain): Verify no real insns exist past the
4627 end of the last basic block, then exit the loop.
4629 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
4631 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
4633 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
4635 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
4637 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
4639 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
4641 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
4643 * flow.c (find_basic_blocks): Correctly determine when a call
4644 is within an exception region.
4646 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
4648 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
4650 * cpplib.h: Protect from multiple inclusions.
4651 * cpplib.c: Fix minor formatting problems.
4653 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
4655 * jump.c (jump_optimize): Revert accidental patch.
4657 * Makefile.in (cpplib.o): Use unlibsubdir.
4659 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
4661 * loop.c (get_condition): Allow combine when either compare is
4664 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
4666 * version.c: Bump for snapshot.
4668 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
4670 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
4671 (init_lex): Initialize ridpointers[RID_BYREF].
4672 * c-lex.h (enum rid): Add RID_BYREF.
4673 * c-parse.gperf: Add RID_BYREF as a type qualifier.
4674 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
4675 (encode_type_qualifiers): Similarly
4676 * c-gperf.h: Rebuilt.
4678 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
4680 * c-common.c (type_for_mode): Only return TItype nodes when
4681 HOST_BITS_PER_WIDE_INT is >= 64 bits.
4682 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
4683 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
4684 (init_decl_processing): Only create TItype nodes when
4685 HOST_BITS_PER_WIDE_INT is >= 64 bits.
4686 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
4687 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
4689 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4691 * stmt.c (n_occurrences): New static function.
4692 (expand_asm_operands): Verify that all constrains match in the
4693 number of alternatives.
4694 Verify that '+' or '=' are at the beginning of an output constraint.
4695 Don't allow '&' for input operands.
4696 Verify that '%' isn't written for the last operand.
4697 * reload.c (find_reloads): Abort if an asm is found with invalid
4698 constraints; all possible problems ought to be checked for earlier.
4700 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4702 * flags.h (flag_branch_on_count_reg): Always declare
4703 * toplev.c (flag_branch_on_count_reg): Likewise.
4704 * toplev.c: Fix typos.
4706 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
4709 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
4711 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
4713 (find_basic_blocks_1): Add a nop to the end of a basic block when
4714 a trailing call insn does not have abnormal control flow.
4715 * gcse.c (pre_transpout): New variable.
4716 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
4717 (compute_pre_transpout): Calculate it.
4718 (compute_pre_ppinout): Use it to eliminate impossible placements
4719 due to abnormal control flow through calls.
4720 (compute_pre_data): Call compute_pre_transpout.
4722 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4724 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
4726 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
4728 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
4729 and matching define_insns): Tack on a `use' of the table label, so
4730 flow analysis will recognize a tablejump.
4732 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
4734 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
4735 always end basic blocks for abnormal edge reasons.
4737 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
4739 * config/i386/i386.h: Remove definition of
4740 HANDLE_PRAGMA_PACK_PUSH_POP.
4742 * config/i386/go32.h: Add definition of
4743 HANDLE_PRAGMA_PACK_PUSH_POP.
4745 * config/i386/win32.h: Add definition of
4746 HANDLE_PRAGMA_PACK_PUSH_POP.
4748 * config/i386/cygwin32.h: Add definition of
4749 HANDLE_PRAGMA_PACK_PUSH_POP.
4751 * c-pragma.c (insert_pack_attributes): Do not insert
4752 attributes unless #pragma pack(push,<n>) is in effect.
4754 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
4756 * expr.c (emit_group_store): Handle a PARALLEL destination.
4758 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
4760 * gcse.c (pre_insert_insn): When a call ends a bb, insert
4761 the new insns before the argument regs are loaded.
4763 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4765 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
4766 (c-parse.gperf): Update comments describing invocation flags.
4767 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
4769 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
4771 * reload1.c (reload): Call free before clobbering the memory
4772 locations or constants pointers.
4774 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4776 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
4777 for efficiency by checking whether we need to modify the current
4778 stack permission at all.
4779 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
4780 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
4781 __enable_execute_stack libcall here too if
4782 TRANSFER_FROM_TRAMPOLINE is defined.
4783 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
4786 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
4788 * Makefile.in (DRIVER_DEFINES): Remove last change.
4790 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4792 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
4793 insns we're going to copy.
4794 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
4796 * loop.c (count_one_set): Add prototype.
4798 * caller-save.c (restore_referenced_regs): Lose mode argument.
4799 (insert_save): Lose mode argument.
4800 (insert_restore): Lose mode argument.
4801 (insert_one_insn): Lose mode argument.
4802 (save_call_clobbered_regs): Lose mode argument.
4803 (setup_save_areas): Take no argument and return void. All callers
4805 Don't verify validity of memory addresses.
4806 * reload.h (setup_save_ares): Adjust prototype.
4807 (save_call_clobbered_regs): Likewise.
4808 * reload1.c (delete_caller_save_insns): New function.
4809 (caller_save_spill_class): Delete variable.
4810 (caller_save_group_size): Delete variable.
4811 (reload): Call setup_save_areas and save_call_clobbered_regs
4812 in the main loop, before calling calculate_needs_all_insns.
4813 Don't call save_call_clobbered_regs after the loop.
4814 Call delete_caller_save_insns at the end of an iteration if
4816 Delete code to manage caller_save_spill_class.
4817 Emit the final note before setting reload_first_uid.
4818 Simplify test that determines whether reload_as_needed gets run.
4819 (calculate_needs): Delete code to manage caller_save_spill_class.
4821 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
4823 * collect2.c (main): Initialize ld_file_name.
4825 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
4827 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
4828 check for flag_function_sections.
4830 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4832 * cse.c (insert_regs): Fix bug in Sep 24 change.
4834 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4836 * flags.h (flag_dump_unnumbered): Declare.
4837 * toplev.c (flag_dump_unnumbered): Don't declare.
4838 * print-rtl.c (flags.h): Include.
4839 (print_rtl_single): Add return value.
4840 * rtl.h (print_rtl_single): Update declaration.
4841 * flow.c (flag_dump_unnumbered): Don't declare.
4842 (print_rtl_with_bb): Use return value of print_rtl_single.
4844 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4846 * loop.c (count_one_set): New static function, broken out of
4848 (count_loop_regs_set): Call it.
4849 * global.c (mark_reg_store): Handle clobbers here by not calling
4851 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
4852 is in fact a clobber.
4853 * integrate.c (process_reg_param): New function, broken out of
4854 expand_inline_function.
4855 (expand_inline_function): Call it.
4858 * i386.md (addsidi3_1): Delete unused variable temp.
4859 (addsidi3_2): Likewise.
4860 (clstrstrsi): Delete unused variable addr1.
4862 * rtl.h: Don't declare any functions also declared in recog.h.
4864 * Makefile.in (stupid.o): Update dependencies.
4865 (global.o): Likewise.
4867 * global.c: Include reload.h
4868 (reg_becomes_live): New function.
4869 (reg_dies): New function.
4870 (build_insn_chain): New function.
4871 (global_alloc): Call build_insn_chain before calling reload.
4873 * reload.h (struct needs): New structure definition.
4874 (struct insn_chain): Likewise.
4875 (reload_insn_chain): Declare variable.
4876 (new_insn_chain): Declare function.
4879 * reload1.c (reload_startobj): New variable.
4880 (reload_insn_chain): New variable.
4881 (unused_insn_chains): New variable.
4882 (new_insn_chain): New function.
4883 (init_reload): Initialize reload_startobj, not reload_firstobj.
4884 (reload): Initialize reload_firstobj.
4885 Before returning, free everything on the reload_obstack.
4887 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
4888 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
4889 current_chain): New variables.
4890 (reg_where_born): Delete variable.
4891 (REG_WHERE_BORN): New macro.
4892 (find_clobbered_regs): New function.
4893 (stupid_life_analysis): Don't allocate/free reg_where_born.
4894 Allocate and free reg_where_born_exact, reg_where_born_clobber,
4895 reg_where_dead_chain.
4896 Use REG_WHERE_BORN instead of reg_where_born.
4897 While processing the insns, build the reload_insn_chain with
4898 information about register lifetimes.
4899 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
4900 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
4902 Compute and information about birth and death of pseudo registers in
4903 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
4904 Delete code to set elements of reg_where_born.
4906 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4908 * tree.def (GOTO_EXPR): Modified documentation.
4909 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
4912 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
4914 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
4915 loop_final_value, loop_comparison_code): No longer static.
4916 (unroll_loop): Delete loop_start_value update.
4917 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
4918 loop_final_value, loop_comparison_code): Extern.
4919 (loop_start_value): Delete extern.
4920 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
4921 loop_comparison_value, loop_comparison_code): Delete.
4922 (loop_optimize): Remove initialization for deleted variables.
4923 (strength_reduce): Delete analyze_loop_iterations call. Only call
4924 insert_bct if flag_branch_count_on_reg set.
4925 (analyze_loop_iterations): Delete.
4926 (insert_bct): Remove iteration count calculation. Move checks for
4927 viable BCT optimization to here. Obtain iteration count from
4928 loop_iterations and correct for unrolling. Check for enough
4929 iteration to be beneficial. Comment out runtime iteration count
4931 (insert_bct): Print iteration count in dump file. Remove
4932 loop_var_mode and use word_mode directly.
4934 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
4935 * rs6000.c (rs6000_override_options): Use it.
4936 (optimization_options): Enable use of flag_branch_on_count_reg.
4937 * rs6000.md (define_function_unit): Describe 604e.
4939 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4941 * loop.c (move_movables): Corrected threshold calculation for
4942 moved_once registers.
4944 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4946 * loop.c (combine_givs_p): Fix test for identical givs.
4948 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
4950 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
4951 call abort if the function is already defined.
4953 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
4955 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
4956 truncation is not a no-op.
4958 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
4960 * version.c: Bump for snapshot.
4962 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
4964 * version.c: Bump for snapshot.
4966 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
4968 * expmed.c (expand_divmod): Don't widen for computing remainder
4969 if we seem to have a divmod pattern for needed mode.
4971 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
4973 * cpplib.c (macroexpand): Correct off-by-one error in handling
4976 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
4978 * combine.c (expand_field_assignment): Don't do bitwise operations
4979 on MODE_FLOAT; pun to MODE_INT if possible.
4981 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
4982 scott snyder <snyder@d0sgif.fnal.gov>
4984 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
4985 linker. Recognize mangled names in quotes.
4987 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4989 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
4990 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
4991 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
4992 (lshrsi3_extend, lshrsi3_extend2): Ditto.
4994 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4996 * function.c (purge_addressof_1): If trying to take a sub-word
4997 integral piece of a floating point mode, put it on the stack.
4999 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
5001 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
5003 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5005 * PROJECTS: Remove template friends.
5007 * collect2.c (sort_ids): Remove unused variable.
5009 * tm.texi (MATH_LIBRARY): Document.
5010 (NEED_MATH_LIBRARY): Remove.
5012 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
5013 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
5015 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
5017 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
5018 last_end to 0x7fffffff.
5020 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5022 * function.c (purge_addressof_1): Do not perform endianness
5023 corrections on bitpos, who we call will do it for us.
5025 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
5027 * h8300.c (WORD_REG_USED): Fix typo.
5028 (initial_offset): Use WORD_REG_USED.
5030 * h8300.c (handle_pragma): Fix typo.
5032 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5034 * caller-save.c (insert_save_restore): Break this function up
5035 into new functions insert_restore, insert_save and insert_one_insn.
5036 All callers changed.
5037 (insert_restore): New function, mostly broken out of
5038 insert_save_restore.
5039 (insert_save): Likewise.
5040 (insert_one_insn): Likewise.
5041 (restore_referenced_regs): New argument BLOCK. All callers changed.
5042 (save_call_clobbered_regs): Don't keep track of basic block boundaries
5043 in this function, do it in insert_one_insn instead.
5045 * reload1.c (reload): Break out some more pieces into separate
5047 (dump_needs): New function, broken out of reload.
5048 (set_initial_elim_offsets): Likewise.
5049 (init_elim_table): Likewise.
5050 (update_eliminables): Likewise.
5052 * global.c (global_alloc): Delete code to manage the scratch_list.
5053 * local-alloc.c (qty_scratch_rtx): Delete.
5054 (scratch_block): Delete.
5055 (scratch_list): Delete.
5056 (scratch_list_length): Delete.
5057 (scratch_index): Delete.
5058 (alloc_qty_for_scratch): Delete.
5059 (local-alloc): Update initialization of max_qty.
5060 Delete code to manage the scratch list.
5061 Delete code to allocate/initialize qty_scratch_rtx.
5062 (block_alloc): Don't allocate quantities for scratches.
5063 Delete code to manage the scratch list.
5064 * regs.h (scratch_list): Delete declaration.
5065 (scratch_block): Delete declaration.
5066 (scratch_list_length): Delete declaration.
5067 * reload1.c (reload): Delete code to manage the scratch list.
5068 (spill_hard_reg): Likewise.
5069 (mark_scratch_live): Delete.
5071 * recog.c (alter_subreg): Delete declaration.
5073 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
5075 * Makefile.in (cccp.o): Fix typo in last patch.
5077 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5079 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
5080 * config/sh/lib1funcs.asm (___set_fpscr): Add.
5082 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
5084 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
5085 NULL_RTX as an argument.
5087 * Makefile.in (unlibsubdir): Define.
5088 (DRIVER_DEFINES): Use unlibsubdir.
5089 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
5090 (stmp-fixinc): Similarly.
5092 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5094 * regmove.c (regmove_optimize): Add variable old_max_uid.
5095 At the end of the function, update basic_block_end.
5097 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5099 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
5100 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
5103 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
5105 * config/arm/arm.c: Improve interworking support.
5107 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5109 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
5110 copied from reload_out[r] .
5112 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
5114 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
5115 with more than three size ranges.
5117 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
5119 * rtl.c (mode_name): Add a null string at the end of the array.
5120 (mode_wider_mode): Change type to unsigned char.
5121 (mode_mask_array): New variable.
5122 (init_rtl): Update for mode_wider_mode type change.
5124 * rtl.h (mode_wider_mode): Change type to unsigned char.
5125 (mode_mask_array): Declare.
5126 (GET_MODE_MASK): Use mode_mask_array.
5128 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
5130 * calls.c (expand_call) : Encapsulate code into
5131 copy_blkmode_from_reg.
5132 * expr.c (copy_blkmode_from_reg): New function.
5133 * expr.h (copy_blkmode_from_reg): New function.
5134 * integrate.c (function_cannot_inline_p): We can inline
5136 (expand_inline_function): Use copy_blkmode_from_reg
5137 if needed. Avoid creating BLKmode REGs.
5138 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
5141 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
5143 * config/v850/v850.c: Add function prototypes.
5144 Add support for v850 special data areas.
5146 * config/v850/v850.h: Add support for v850 special data areas.
5148 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
5149 HANDLE_PRAGMA_PACK_PUSH_POP.
5150 (push_alignment): New function: Cache an alignment requested
5151 by a #pragma pack(push,<n>).
5152 (pop_alignment): New function: Pop an alignment from the
5154 (insert_pack_attributes): New function: Generate __packed__
5155 and __aligned__ attributes for new decls whilst a #pragma pack
5157 (add_weak): New function: Cache a #pragma weak directive.
5158 (handle_pragma_token): Document calling conventions. Add
5159 support for #pragma pack(push,<n>) and #pragma pack (pop).
5161 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
5162 are defined enable HANDLE_PRAGMA_PACK.
5163 Move 'struct weak_syms' here (from varasm.c).
5164 Add pragma states for push and pop pragmas.
5166 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
5169 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
5170 HANDLE_GENERIC_PRAGMAS.
5172 * varasm.c: Move definition of 'struct weak_syms' into
5174 (handle_pragma_weak): Deleted.
5176 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
5178 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
5180 * c-decl.c (start_function): Add invocation of
5181 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
5183 * tm.texi: Remove description of non-existant macro
5184 SET_DEFAULT_SECTION_NAME.
5186 (HANDLE_SYSV_PRAGMA): Document.
5187 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
5189 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
5191 * config.sub: Recognize i[34567]86-pc-udk as new target.
5192 * configure.in: Likewise.
5193 * config/i386/t-udk: New file.
5194 * config/i386/udk.h: New file.
5196 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
5198 * reorg.c (check_annul_list_true_false): Remove unused variables.
5199 (steal_delay_list_from_target): Add missing "used_annul" variable.
5200 (try_merge_delay_insns): Close out half formed comment.
5202 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5204 * cpplib.c (macroexpand): If arg->raw_before or
5205 arg->raw_after, remove any no-reexpansion escape at the
5206 beginning of the pasted token. Correct handling of whitespace
5207 markers and no-reexpand markers at the end if arg->raw_after.
5209 * toplev.c (documented_lang_options): Recognize -include,
5210 -imacros, -iwithprefix, -iwithprefixbefore.
5211 * cpplib.c (cpp_start_read): Process -imacros and -include
5212 switches at the same time and in command-line order, after
5213 initializing the dependency-output code. Emit properly nested
5214 #line directives for them. Emit a #line for the main file
5215 before processing these switches, and don't do it again
5218 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
5220 * function.c (purge_addressof_1): Use bitfield manipulation
5221 routines to handle mem mode < reg mode.
5223 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
5225 * reorg.c (try_merge_delay_insns): Account for resources referenced
5226 in each instruction in INSN's delay list before trying to eliminate
5227 useless instructions. Similarly when looking at a trial insn's delay
5230 * reorg.c (check_annul_list_true_false): New function.
5231 (steal_delay_list_from_{target,fallthrough}): Call it and also
5232 refine tests for when we may annul if already filled a slot.
5233 (fill_slots_from_thread): Likewise.
5234 (delete_from_delay_slot): Return newly-created thread.
5235 (try_merge_delay_isns): Use its new return value.
5237 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
5239 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
5240 used to compute a giv or as some other non-counting use.
5242 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5244 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
5245 * local-alloc.c (find_free_reg): Use it.
5246 * global.c (find_reg): Likewise.
5247 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
5249 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
5250 * caller-save.c (init_caller_save): Use it.
5251 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
5253 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5255 * configure.in: Add --enable-cpplib option which uses cpplib
5256 for cpp, but doesn't link cpplib into cc1. Make help text
5257 capitalization consistent.
5258 * configure: Rebuilt.
5260 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
5262 * function.c (gen_mem_addressof): If the address REG is
5263 REG_USERVAR_P make the new REG be so also.
5264 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
5265 in an attempt to clarify slightly.
5267 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
5269 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
5270 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
5272 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
5274 * toplev.c: Fix last patch.
5276 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
5278 * loop.c (get_condition): Fix typo in May 9 change.
5280 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5282 * invoke.texi (-fexceptions): Merge 2 different descriptions.
5284 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5286 * toplev.c (documented_lang_options): Spelling corrections.
5288 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5290 * configure.in: new flags --with-ld and --with-as, equivalent
5291 to setting LD and AS environment variables. Test whether
5292 specified arguments are GNU commands, and report them with
5293 checking messages. Use the specified AS for configure
5296 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
5298 * gcc.c (find_a_file): when looking for `as' and `ld', return
5299 the DEFAULT program if it exists
5300 * collect2.c (main): use DEFAULT_LINKER if it exists
5302 * gcc.c (find_a_file): the test for existence of a full
5303 pathname was reversed
5305 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
5307 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
5308 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
5310 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
5312 * tree.h (TYPE_BINFO): Document.
5314 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
5316 * i386-coff.h (dbxcoff.h): Added.
5318 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
5320 * toplev.c: fix bad patch around flag_data_sections.
5322 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
5324 * reload1.c (reload): Use reload_address_index_reg_class and
5325 reload_address_base_reg_class when setting
5326 caller_save_spill_class. (Patch generated by Jim Wilson:
5329 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
5331 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
5332 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
5333 * expr.c (store_field): Add alias_set parameter. Set the
5334 MEM_ALIAS_SET accordingly, if the target is a MEM.
5335 (expand_assignment): Use it.
5336 (store_constructor_field): Pass 0.
5337 (expand_expr): Likewise.
5339 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
5341 * flags.h: Add flag_data_sections.
5342 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
5343 (compile_file): Error if flag_data_sections not supported.
5344 * varasm.c (assemble_variable): Handle flag_data_sections.
5345 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
5346 * config/mips/elf.h: Likewise.
5347 * config/mips/elf64.h: Likewise.
5348 * invoke.texi: Describe -fdata-sections.
5350 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
5352 * invoke.texi (-ffloat-store): Clarify that this option
5353 does not affect intermediate results -- only variables.
5355 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
5357 * cpp.texi: Update for Fortran usage from Craig.
5359 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
5361 * rs6000.c (function_arg_boundary): Revert accidental change on
5364 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
5366 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
5367 (output_mi_thunk): Declare.
5369 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
5370 (output_function_profiler): Use r12 for temp, instead of r11 so
5371 that we preserve the static chain register.
5373 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
5375 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
5377 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5379 * sh.c (gen_shl_sext): Fix case 5.
5381 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5383 * reload1.c (reload_combine): Re-add line that got accidentally lost.
5385 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5387 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
5388 accessing variables until they are initialized via va_arg().
5390 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5392 * reload1.c (reload_combine): Initialize set before using.
5394 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
5396 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
5399 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
5401 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
5402 operand3 with mask before using it. Patch provided by Jim Wilson.
5404 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5406 * config/sparc/sparc.c (function_value): Perform the equivalent of
5407 PROMOTE_MODE for ARCH64.
5408 (eligible_for_epilogue_delay): Allow DImode operations in delay
5409 slot of a return for ARCH64.
5411 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5413 * sh.md (sqrtsf2): Fix mode of sqrt.
5415 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5417 * reload1.c (choose_reload_regs): Also try inheritance when
5418 reload_in is a stack slot of a pseudo, even if we already got a
5421 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5423 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
5424 (reload_cse_regs): New function body: call reload_cse_regs_1,
5425 reload_combine, reload_cse_move2add.
5426 When doing expensive_optimizations, call reload_cse_regs_1 a
5427 second time after reload_cse_move2add.
5428 (reload_combine, reload_combine_note_store): New functions.
5429 (reload_combine_note_use): New function.
5430 (reload_cse_move2add, move2add_note_store): New functions.
5432 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5434 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
5435 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
5437 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
5438 more than 3 such reloads.
5440 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
5441 RELOAD_FOR_X_ADDR_ADDR reload.
5443 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5445 * expr.c (store_constructor): When initializing a field that is smaller
5446 than a word, at the start of a word, try to widen it to a full word.
5448 * cse.c (cse_insn): When we are about to change a register,
5449 remove any invalid references to it.
5451 (remove_invalid_subreg_refs): New function.
5452 (mention_regs): Special treatment for SUBREGs.
5453 (insert_regs): Don't strip SUBREG for call to mention_regs.
5454 Check if reg_tick needs to be bumped up before that call.
5455 (lookup_as_function): Try to match known word_mode constants when
5456 looking for a norrower constant.
5457 (canon_hash): Special treatment for SUBREGs.
5459 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5461 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
5462 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
5463 defined, emit libcall to __enable_execute_stack. Also fix opcodes
5464 and offsets in actual stack trampoline code so they match the
5465 commentary and actually work.
5467 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5469 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
5471 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
5472 tmake_file. Set extra_parts to needed crt objects.
5473 * configure: Rebuilt.
5474 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
5475 (TARGET_DEFAULT): Set if default is v9 or ultra.
5476 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
5477 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
5478 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
5479 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
5480 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
5481 (TARGET_VERSION): Define.
5482 (MULTILIB_DEFAULT): Define.
5483 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
5484 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
5485 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
5487 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
5488 * config/sparc/sparc.c (sparc_override_options): If arch and
5489 pointer size disagree, emit diagnostic and fix it up. If
5490 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
5491 V8PLUS in 64-bit mode.
5492 * config/sparc/t-linux64: New file.
5493 * config/sparc/t-sol2-64: New file.
5494 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
5495 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
5496 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
5497 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
5498 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
5499 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
5501 (STARTFILE_SPEC): Set approriately based upon those.
5502 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
5503 disposition of DEFAULT_ARCH32_P.
5504 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
5505 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
5506 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
5507 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
5508 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
5510 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
5512 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
5514 * rtl.h (init_virtual_regs): New function.
5515 * emit-rtl.c (init_virtual_regs): Define.
5516 (insn_emit): Use it.
5517 * integrate.c (save_for_inline_copying): Likewise.
5519 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
5521 * config/arm/thumb.h: The following patches were made by Jim Wilson:
5522 (enum reg_class): Add NONARG_LO_REGS support.
5523 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
5524 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
5525 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
5526 completes. Re-enable HImode REG+OFFSET addresses.
5527 (LEGITIMIZE_RELOAD_ADDRESS): Define.
5529 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
5531 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
5533 * alpha.c (get_aligned_mem): Revert Sep 20 change.
5534 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
5535 (alpha_align_insns): Properly calculate initial offset wrt max_align.
5537 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
5539 * arm.c (find_barrier): Revert change of Apr 23. Handle table
5540 jumps as a single entity, taking into account the size of the
5543 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5545 * tree.def (SWITCH_EXPR): New tree node definition.
5547 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
5549 * version.c: Bump for snapshot.
5551 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
5553 * version.c: Bump for snapshot.
5555 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
5557 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
5560 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
5562 * Revert this patch.
5563 * reload.c (find_reloads): Do not replace a pseudo with
5564 (MEM (reg_equiv_addr)) in the initializing insn for the
5567 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
5569 * final.c (final_scan_insn): Disable tracking CC across branches.
5571 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5573 * expr.h (eh_rtime_match_libfunc): New extern declaration.
5574 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
5575 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
5576 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
5577 NULL. Only include <stdio.h> if inhibit_libc is not defined.
5579 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
5581 * toplev.c (rest_of_compilation): Skip compiling anything with
5582 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
5584 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
5586 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
5587 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
5588 use in_libcall_block.
5589 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
5590 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
5593 Mon Sep 21 14:02:23 1998
5595 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
5596 typo in no-fancy-math-387 description.
5598 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
5600 * version.c: Bump for snapshot.
5602 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
5604 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
5606 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
5608 * i386.h: (TARGET_SWITCHES) Add description fields for flags
5609 documented in install.texi.
5610 (TARGET_OPTIONS) Likewise.
5612 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
5614 * version.c: Bump for snapshot.
5616 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
5618 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
5619 * cccp.c (main): Likewise.
5621 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
5622 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
5625 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
5627 * Makefile.in (LIBS): Link in libiberty.a.
5628 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
5630 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
5632 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
5633 it to update bb boundaries. Update caller.
5634 * function.c (reposition_prologue_and_epilogue_notes): Update
5635 bb boundaries wrt the moved note.
5637 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
5639 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
5641 * configure: Regenerate.
5643 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
5645 * alpha.c (alpha_sr_alias_set): New variable.
5646 (override_options): Set it.
5647 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
5648 (mode_mask_operand): Fix signed-unsigned comparision warning.
5649 (alpha_expand_block_move): Likewise.
5650 (print_operand): Likewise.
5651 (get_aligned_mem): Use change_address.
5652 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
5653 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
5654 (alphaev4_next_nop, alphaev5_next_nop): New functions.
5655 (alpha_align_insns): Remade from old alphaev5_align_insns
5656 to handle multiple processors.
5657 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
5658 * output.h (label_to_alignment): Prototype.
5660 * tree.c (new_alias_set): New function.
5661 * tree.h (new_alias_set): Declare it.
5662 * c-common.c (c_get_alias_set): Use it.
5664 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
5666 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
5667 to an ABS expr, convert an unsigned input to signed.
5669 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
5671 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
5673 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5675 * configure.in: Add support for c4x targets.
5676 * configure: Rebuilt.
5678 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
5680 * combine.c (distribute_notes): If an insn is a cc0 user, only
5681 delete it if we can also delete the cc0 setter.
5683 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
5685 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
5686 (invert_truthvalue): Enable truthvalue inversion for
5687 floating-point operands if -ffast-math.
5689 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
5691 * configure.in: Disable collect2 for nextstep. Instead use
5693 * configure: Rebuilt.
5694 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
5695 (ENDFILE_SPEC): Define.
5696 (OBJECT_FORMAT_MACHO): Define.
5697 (EH_FRAME_SECTION_ASM_OP): Define.
5698 * crtstuff.c: Handle MACHO.
5700 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
5702 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
5704 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
5706 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
5707 (_fpadd_parts): Get sign right for 0.
5709 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5711 * ginclude/varargs.h: Add support for C4x target.
5712 * ginclude/stdargs.h: Likewise.
5714 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
5716 * alpha.c (alpha_return_addr): SET should be VOIDmode.
5717 (alpha_emit_set_long_const): Rewrite to be callable from reload
5719 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
5720 * alpha.md (movdi): Likewise.
5722 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
5724 * arm.c (add_constant): New parameter address_only, change caller.
5725 Set it non-zero if taking the address of an item in the pool.
5726 (arm_reorg): Handle cases where we need the address of an item in
5729 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
5731 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
5732 memory addresses that are not in standard canonical form.
5734 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
5736 * README.C4X: New file with information about the c4x ports.
5737 * ginclude/va-c4x.h: New file for c4x varargs support.
5738 * config/c4x: New directory with c4x port files.
5740 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
5742 * reload.c (find_reloads): Do not replace a pseudo with
5743 (MEM (reg_equiv_addr)) in the initializing insn for the
5746 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
5748 * toplev.c (rest_of_compilation): Set bct_p on second call to
5750 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
5752 (strength_reduce): Only call analyze_loop_iterations and
5753 insert_bct if bct_p set.
5754 (check_dbra_loop): Fix typo.
5755 (insert_bct): Use word_mode instead of SImode.
5756 (instrument_loop_bct): Likewise. Do not delete iteration count
5757 condition code generation insn. Initialize iteration count before
5759 * rtl.h (loop_optimize): Update prototype.
5761 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
5762 not doubleword aligned.
5764 * rs6000.c (optimization_options): New function.
5765 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
5766 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
5767 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
5768 first; cr1 can be used for FP record condition insns.
5770 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
5772 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
5775 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
5778 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
5780 (block_move_call): New function: Call a library routine to copy a
5782 (m32r_expand_block_move): New function: Expand a "movstrsi"
5783 pattern into a sequence of insns.
5784 (m32r_output_block_move): New function: Expand a
5785 "movstrsi_internal" pattern into a sequence of assembler opcodes.
5786 (m32r_block_immediate_operand): New function: Return true if the
5787 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
5789 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5791 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
5793 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
5795 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5797 * regmove.c (copy_src_to_dest): Check that modes match.
5799 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
5801 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
5803 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
5805 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
5806 narrower than FLOAT_REGS.
5808 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5810 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
5812 * Makefile.in (old_gxx_include_dir): removed
5814 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
5816 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
5819 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
5820 (sh_handle_pragma): Change function arguments to match new
5821 specification for HANDLE_PRAGMA.
5823 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5825 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
5827 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
5828 When generating output, initialize missing struct member to zero.
5830 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5832 * regmove.c (copy_src_to_dest): Don't copy if that requires
5833 (a) new register(s).
5835 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5837 * global.c (reg_allocno): Now static.
5838 * reload1.c (reg_allocno): Delete declaration.
5839 (order_regs_for_reload): Take no arguments. Don't treat regs
5840 allocated by global differently than those allocated by local-alloc.
5842 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
5844 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
5845 condition, fix format strings.
5846 (output_function_epilogue): Likewise.
5848 * m68k/m68k.c: Don't include <stdlib.h> directly.
5850 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
5852 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
5853 mem_first_set, mem_last_set; because 0 can be a CUID.
5854 (oprs_unchanged_p): Use new definition.
5855 (record_last_reg_set_info): Likewise.
5856 (record_last_mem_set_info): Likewise.
5857 (compute_hash_table): Likewise.
5859 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
5861 * rs6000.c (output_epilogue): Handle Chill.
5863 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
5864 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
5866 * combine.c (make_extraction): If no mode is specified for
5867 an operand of insv, extv, or extzv, default it to word_mode.
5868 (simplify_comparison): Similarly.
5869 * expmed.c (store_bit_field): Similarly.
5870 (extract_bit_field): Similarly.
5871 * function.c (fixup_var_regs_1): Similarly.
5872 * recog.c (validate_replace_rtx_1): Similarly.
5873 * mips.md (extv, extzv, insv expanders): Default modes for most
5874 operands. Handle TARGET_64BIT.
5875 (movdi_uld, movdi_usd): New patterns.
5877 * pa.c (emit_move_sequence): Do not replace a pseudo with its
5878 equivalent memory location unless we have been provided a scratch
5879 register. Similarly do not call find_replacement unless a
5880 scratch register has been provided.
5882 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5884 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
5887 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
5889 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
5890 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
5891 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
5892 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
5893 * c-decl.c (init_decl_processing): Update accordingly.
5894 * expr.c (expand_builtin): Likewise.
5896 * rtl.h (global_rtl): Add cfa entry.
5897 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
5898 (LAST_VIRTUAL_REGISTER): Update.
5899 * emit-rtl.c (global_rtl): Add cfa entry.
5900 (init_emit): Initialize it.
5901 * function.c (cfa_offset): New.
5902 (instantiate_virtual_regs): Initialize it.
5903 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
5904 (expand_function_end): Call expand_eh_return.
5905 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
5907 * except.c (current_function_eh_stub_label): Kill.
5908 (current_function_eh_old_stub_label): Likwise; update all references.
5909 (expand_builtin_set_return_addr_reg): Kill.
5910 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
5911 (expand_builtin_set_eh_regs): Kill.
5912 (eh_regs): Produce a third reg for the actual handler address.
5913 (eh_return_context, eh_return_stack_adjust): New.
5914 (eh_return_handler, eh_return_stub_label): New.
5915 (init_eh_for_function): Initialize them.
5916 (expand_builtin_eh_return, expand_eh_return): New.
5917 * except.h: Update prototypes.
5918 * flow.c (find_basic_blocks_1): Update references to the stub label.
5919 * function.h (struct function): Kill stub label elements.
5921 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
5922 register number is one that would be in the previous window.
5923 Provide a dummy definition for non-windowed targets.
5924 (get_reg_addr): New function.
5925 (get_reg, put_reg, copy_reg): Use it.
5926 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
5927 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
5929 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
5930 (alpha_init_expanders): Initialize it.
5931 (alpha_expand_epilogue): Use it.
5932 * alpha.h: Declare it.
5933 * alpha.md (eh_epilogue): New.
5935 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
5936 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
5938 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
5940 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
5943 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5945 * except.h (struct eh_entry): Add false_label field.
5946 (end_catch_handler): Add prototype.
5947 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
5948 (start_catch_handler): When using old style exceptions, issue
5949 runtime typematch code before continuing with the handler.
5950 (end_catch_handler): New function, generates label after handler
5951 if needed by older style exceptions.
5952 (expand_start_all_catch): No need to check for new style exceptions.
5953 (output_exception_table_entry): Only output the first handler label
5954 for old style exceptions.
5955 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
5956 mechanism into one function, if a runtime matcher is provided.
5958 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5960 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
5962 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
5964 * integrate.c (copy_decl_list): Fix typo.
5966 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5968 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
5971 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
5973 * version.c: Bump for snapshot.
5975 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
5977 * version.c: Bump for snapshot.
5979 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
5981 * version.c: Bump for snapshot.
5983 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5985 * invoke.texi (C Dialect Options): Put back missing @end itemize.
5987 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5989 * configure.in: remove usage of `!' to negate the result of a
5990 command; some common shells do not support it
5992 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5994 * configure.in: in sparc9-sol2 config, use 'if test' not
5996 * configure: Rebuilt.
5998 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
6000 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
6001 (CPP_CPU_DEFAULT_SPEC): Likewise.
6002 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
6003 for arch64 libfuncs.
6005 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
6008 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6010 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
6012 * collect2.c: Don't declare `sys_siglist' here.
6013 (my_strsignal): Prototype and define new function. Use it in
6014 place of `sys_siglist' hacks.
6016 * mips_tfile.c: Likewise.
6018 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
6019 (GCC_NEED_DECLARATIONS): Likewise.
6021 * system.h (strsignal): Prototype it, if necessary.
6022 (sys_siglist): Declare it, if necessary.
6024 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6026 * loop.c (move_movables): While removing insn sequences, preserve
6027 the next pointer of the most recently deleted insn when we skip
6030 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
6032 * objc/config-lang.in: Do not output the name of the selected
6033 thread file when building the front-end. The Makefile for the
6034 runtime library will do this.
6036 * objc/Make-lang.in: Do not build the runtime library or install
6037 the Objective C header files. The Makefile for the runtime
6038 library will do this.
6040 * objc/Makefile.in (all.indirect): Only build the front-end.
6041 (compiler): Rename to `frontend'.
6042 (obj-runtime): Remove target.
6043 (copy-headers): Likewise.
6044 (clean): No need to remove `libobjc.a' any longer.
6046 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
6048 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
6049 supported with -mcpu=xxx.
6051 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6053 * flow.c (mark_set_1): Recognize multi-register structure return
6054 values in CALL insns.
6055 (mark_used_regs): Likewise.
6056 (count_reg_sets_1): Likewise.
6057 (count_reg_references): Likewise.
6058 * rtlanal.c (note_stores): Likewise.
6059 (reg_overlap_mentioned_p): Likewise.
6060 * haifa-sched.c (check_live_1): Likewise.
6061 (update_live_1): Likewise.
6062 (sched_analyze_1): Likewise.
6063 (sched_note_set): Likewise.
6064 (birthing_insn_p): Likewise.
6065 (attach_deaths): Likewise.
6067 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
6070 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
6072 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
6074 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6076 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
6078 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6080 * configure.in: Add check for GAS subsection -1 support.
6081 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
6082 * configure config.in: Rebuilt.
6083 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
6084 SImode is subsection -1 works, else use DImode.
6085 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
6086 subsection -1 works.
6087 * config/sparc/sparc.c (sparc_output_addr_vec,
6088 sparc_output_addr_diff_vec): Use them if defined.
6090 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
6092 * tree.h (DECL_ORIGIN): New macro.
6093 * integrate.c (copy_and_set_decl_abstract_origin): New function.
6094 (copy_decl_list): Use it.
6095 (integrate_parm_decls): Likewise.
6096 (integrate_decl_tree): Likewise.
6097 * dwarf2out.c (decl_ultimate_origin): Simplify.
6098 * dwarfout.c (decl_ultimate_origin): Likewise.
6099 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
6100 (pushdecl): Likewise.
6102 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
6104 * config/rs6000/rs6000.c (output_epilog): Add Java support.
6106 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
6108 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
6110 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
6112 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
6113 empty or has a single entry.
6115 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
6116 before calling reg_to_stack.
6118 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
6120 * alpha.c (alphaev5_insn_pipe): Abort on default case.
6121 (alphaev5_next_group): Swallow CLOBBERs and USEs.
6123 * c-tree.h (warn_long_long): Declare it.
6125 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
6127 * emit-rtl.c (gen_lowpart_common): Disable optimization of
6128 initialized float-int union if the value is a NaN.
6130 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
6132 * c-lex.c (real_yylex): Don't warn about long long constants if
6133 we're allowing long long
6135 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
6137 * except.h (current_function_eh_stub_label): Declare.
6138 (current_function_eh_old_stub_label): Declare.
6139 * function.h (struct function): New members eh_stub_label and
6141 * except.c (current_function_eh_stub_label): New variable.
6142 (current_function_eh_old_stub_label): New variable.
6143 (init_eh_for_function): Clear them.
6144 (save_eh_status): Save them.
6145 (restore_eh_status): Restore them.
6146 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
6147 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
6148 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
6149 make an edge from the block that contains it to the block starting
6150 with the label if this label is one of the eh stub labels.
6151 If eh stub labels exist, show they are reachable from the last block
6154 * reload1.c (reload): Break out several subroutines and make some
6156 (calculate_needs_all_insns): New function, broken out of reload.
6157 (calculate_needs): Likewise.
6158 (find_reload_regs): Likewise.
6159 (find_group): Likewise.
6160 (find_tworeg_group): Likewise.
6161 (something_needs_reloads): New global variable, formerly in reload.
6162 (something_needs_elimination): Likewise.
6163 (caller_save_spill_class): Likewise.
6164 (caller_save_group_size): Likewise.
6165 (max_needs): Likewise.
6166 (group_size): Likewise.
6167 (max_groups): Likewise.
6168 (max_nongroups): Likewise.
6169 (group_mode): Likewise.
6170 (max_needs_insn): Likewise.
6171 (max_groups_insn): Likewise.
6172 (max_nongroups_insn): Likewise.
6173 (failure): Likewise.
6175 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
6177 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
6179 * loop.c (load_mems): Copy rtx for output mem.
6181 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
6183 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
6184 mips1 or mips2 either.
6186 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
6188 * pa.c (pa_reorg): New marking scheme for jumps inside switch
6190 (pa_adjust_insn_length): Update to work with new marking scheme
6191 for jumps inside switch tables.
6192 * pa.md (switch_jump): Remove pattern.
6193 (jump): Handle jumps inside jump tables.
6195 * Makefile.in (profile.o): Depend on insn-config.h
6197 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
6199 * iris6.h (DWARF2_UNWIND_INFO): Undef.
6201 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6203 Add preliminary native sparcv9 Solaris support.
6204 * configure.in: Recognize sparv9-*-solaris2*
6205 * configure: rebuilt
6206 * config.sub: Recognize sparcv9 just like sparc64.
6207 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
6208 config/sparc/sol2-cn.asm: Macroize so it can be shared between
6209 32-bit and 64-bit Solaris systems.
6210 * config/sparc/t-sol2: Assemble those with cpp.
6211 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
6212 (*TF*_LIBCALL): If ARCH64 use V9 names.
6213 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
6215 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6217 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
6218 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
6220 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
6222 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
6223 to Pmode if CASE_VECTOR_MODE is something else.
6225 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
6227 * prefix.c (update_path): Correctly handle cases where PATH is
6228 a substring of the builtin prefix, but specifies a different
6231 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
6233 * expr.c: Corrected comment about what MOVE_RATIO does.
6234 * config/alpha/alpha.h: Ditto.
6235 * config/1750a/1750a.h: Ditto.
6236 * config/clipper/clipper.h: Ditto.
6237 * config/i386/i386.h: Ditto.
6239 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
6241 * configure.in (m68k-next-nextstep3*): Use collect2.
6242 Similarly for x86 NeXT configurations.
6243 * configure: Rebuilt.
6245 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
6247 * configure.in: Don't assume srcdir is .../gcc
6248 * configure: Rebuilt.
6250 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
6252 * global.c: Update comments.
6253 (global_alloc): Assign allocation-numbers
6254 even for registers allocated by local_alloc in case
6255 they are later spilled and retry_global_alloc is called.
6256 (mark_reg_store, mark_reg_clobber,
6257 mark_reg_conflicts, mark_reg_death): Always record a
6258 conflict with a pseudo register even if it has been
6259 assigned to a hard register.
6260 (dump_conflicts): Don't list pseudo registers already assigned to
6261 a hard register as needing to be allocated, but do list their
6263 * local-alloc.c: Update comment.
6265 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
6267 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
6268 * configure: Rebuilt.
6270 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
6272 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
6274 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
6275 for all targets that set -msoft-float.
6277 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6279 * toplev.c (print_switch_values): Make static to match prototype.
6281 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
6283 * configure.in: If we are unable to find the "gnatbind" program,
6284 then do not configure the ada subdir.
6285 * configure: Rebuilt.
6287 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
6289 * version.c: Bump for snapshot.
6291 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
6293 * version.c: Bump for snapshot.
6295 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6297 * Makefile.in (toplev.o): Depend on $(EXPR_H).
6298 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
6300 * gansidecl.h: Define ATTRIBUTE_NORETURN.
6302 * genattrtab.c: Have insn-attrtab.c include toplev.h.
6304 * genextract.c: Have insn-extract.c include toplev.h.
6306 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
6308 * toplev.c: Include expr.h.
6309 (really_sorry, fancy_abort): Remove prototypes.
6310 (set_target_switch): Add argument in prototype.
6311 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
6312 (v_really_sorry): Likewise.
6313 (print_version, print_single_switch, print_switch_values): Make
6314 static and add prototype arguments.
6315 (decl_printable_name): Add prototype arguments.
6316 (lang_expand_expr_t): New typedef.
6317 (lang_expand_expr): Declare as a lang_expand_expr_t.
6318 (incomplete_decl_finalize_hook): Add prototype argument.
6319 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
6320 (botch): Likewise for variable `s'.
6321 (rest_of_type_compilation): Mark variables `type' and `toplev'
6322 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
6323 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
6324 (display_help): Make variable `i' an `unsigned long'.
6325 (main): Remove unused parameter `envp'.
6326 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
6327 Cast -1 when comparing it with a `size_t'.
6329 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
6330 prototype with ATTRIBUTE_NORETURN.
6331 (fatal_insn_not_found, fatal_insn, really_sorry,
6332 push_float_handler, pop_float_handler): Add prototypes.
6333 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
6334 (do_abort, botch): Add prototypes.
6336 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
6338 * final.c (final): If a label is reached only from a single jump,
6339 call NOTICE_UPDATE_CC on the jump and its predecessor before
6340 emitting the insn after the label.
6342 * i386.h: Add AMD K6 support.
6343 Change TARGET_* macros to use table lookup.
6344 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
6345 (ADJUST_COST): Change definition to call function in i386.c.
6346 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
6347 * i386.c: Add AMD K6 support.
6348 Add constants for feature tests used by TARGET_* macros.
6349 (split_di): If before reload, call gen_lowpart and gen_highpart.
6350 (x86_adjust_cost): New function.
6351 (put_jump_code): New function.
6352 (print_operand): New codes 'D' and 'd'.
6353 * i386.md: New insn types. New insn attribute "memory".
6354 Redefine scheduling parameters to use new types and add AMD K6
6355 support. Explicitly set type of most insns.
6356 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
6357 Pro and K6 prefer movl $1,reg to incl reg.
6358 (adddi3, subdi3): Set cc_status.
6359 (DImode shift patterns): Change label counters from HOST_WIDE_INT
6360 to int; x86 can't have more than 2^31 DImode shifts per file.
6361 (setcc): Combine all setcc patterns. Allow writing memory.
6362 Combine all jump patterns using match_operator.
6363 (*bzero): Name pattern. Emit mutliple stos instructions when that
6364 is faster than rep stos.
6365 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
6368 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
6370 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
6373 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
6375 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
6376 not whatever we're generating now.
6378 * alpha.c (set_frame_related_p, FRP): New.
6379 (alpha_expand_prologue): Mark frame related insns.
6380 (alpha_expand_epilogue): Likewise, but with a null FRP.
6381 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
6382 * alpha.md (exception_receiver): New.
6383 * alpha/crtbegin.asm (.eh_frame): New beginning.
6384 (__do_frame_setup, __do_frame_takedown): New.
6385 * alpha/crtend.asm (.eh_frame): New ending.
6386 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
6387 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
6388 (ASM_FILE_START): Don't emit .file for dwarf2.
6390 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
6391 * rtl.c (reg_note_name): Likewise.
6392 * rtl.texi (REG_NOTES): Likewise.
6393 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
6396 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
6398 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
6399 * i386.md (movsf, movdf, movxf): Validate memory address returned
6400 from force_const_mem. Kill useless REG_EQUAL setting code.
6402 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
6404 * m68k.md (zero_extendsidi2): Fix typo.
6406 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
6408 * configure.in: Removed references to the removed file
6409 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
6410 * arm*-*-netbsd* and ns32k-*-netbsd*.
6411 * config/i386/xm-netbsd.h: Removed unnecessary file.
6412 * config/m68k/xm-netbsd.h: Likewise.
6413 * config/sparc/xm-netbsd.h: Likewise.
6414 * config/mips/xm-netbsd.h: Likewise.
6416 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
6418 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
6419 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
6421 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
6422 for exact section attributions.
6424 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
6426 * i386/crtdll.h (CPP_PREDEFINES): Define.
6428 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
6430 * m68k.md (5200 movqi): Do not allow byte sized memory references
6432 * m68k.c (output_move_qimode): Do not use byte sized operations on
6435 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
6436 explicit rules for building. Similarly for alloca, vfprintf,
6437 choose-temp and mkstemp, getopt, getopt1, and obstack.
6438 (INCLUDES): Add $(srcdir)/../include.
6439 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
6440 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
6442 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
6444 * gcc.c (do_spec_1): [case 'o'] Account for
6445 lang_specific_extra_outfiles.
6446 (main): Correctly clear all slots in outfiles for
6447 lang_specific_extra_outfiles. Set input_file_number before
6448 calling lang_specific_pre_link.
6450 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
6452 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
6454 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6456 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
6458 (sparc_output_deferred_case_vectors): If no work to do, return.
6459 Fix thinko in Sept 1 change.
6461 1998-09-03 SL Baur <steve@altair.xemacs.org>
6463 * Makefile.in: add semicolon in BISON definition for portability.
6465 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
6467 * config/nextstep.c (handle_pragma): Correct name of third
6470 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
6472 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
6473 * config/m32r/m32r.h: Make register 17 be fixed.
6474 * config/m32r/m32r.c: Use SImode for cc operations.
6476 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
6478 * invoke.texi (Warning Options): Add -Wnon-template-friend
6481 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
6483 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
6485 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
6487 * rs6000.md (movsf): Disable explicit secondary-reload-like
6488 functionality if TARGET_POWERPC64.
6489 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
6492 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
6494 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
6495 and term.h from fixinc.wrap.
6497 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6499 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
6500 safe to include both string.h and strings.h together.
6501 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
6502 which headers to search for function declarations. Continue to
6503 prefer string.h over strings.h when both are not acceptable.
6505 * acconfig.h (STRING_WITH_STRINGS): Add stub.
6507 * configure.in: Call GCC_HEADER_STRING.
6509 * system.h: Test STRING_WITH_STRINGS when deciding which headers
6510 to include. Continue to prefer string.h over strings.h when both
6513 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6515 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
6516 not assume top 32-bits of symbolic addresses are zero if
6519 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
6521 * ginclude/va-alpha.h: Protect entire second portion of the
6522 file against double inclusion.
6524 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
6526 Added support for the Boehm's garbage collector.
6527 * configure.in: Handle --enable-objc-gc.
6528 * configure: Rebuilt.
6529 * Makefile.in (CHECK_TARGETS): Add check-objc.
6530 (check-objc): New rule.
6531 * objc/Make-lang.in: Build a different Objective-C library that
6532 runs with the Boehm's collector.
6533 * objc/encoding.c (objc_round_acc_size_for_types): New function.
6534 * objc/encoding.c: Correctly compute the size of compound types in
6535 the presence of bitfields. Skip the variable name of the type if
6536 any. Added support for long long.
6537 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
6538 (_F_GCINVISIBLE): New mask.
6539 * objc/gc.c: New file. Compute the type memory mask associated with
6540 a class based on the runtime information.
6541 * objc/misc.c: Added the hooks that use the Boehm's collector
6542 allocation functions.
6543 * objc/objc-act.c (build_class_template): Generate a new class
6544 member (gc_object_type) to hold the class' type memory mask.
6545 (build_shared_structure_initializer): Initialize the new member to
6547 (encode_complete_bitfield): New function. Generate the new
6549 (encode_field_decl): Generate the new encoding only for the GNU
6551 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
6553 (class_get_gc_object_type): New function to mark a pointer instance
6554 variable as a weak pointer.
6555 * objc/objc-features.texi: New file.
6556 * objc/objc.h (gc_object_type): New class member.
6557 * objc/objects.c (class_create_instance): Create a typed memory
6558 object when compiled with Boehm's collector support.
6559 * objc/sendmsg.c (__objc_init_install_dtable): Call
6560 __objc_send_initialize instead of setting the initialize flag.
6561 (__objc_send_initialize): Call __objc_generate_gc_type_description
6562 to generate the class type memory mask. Rewrite the code that
6563 sends the +initialize so that it is called only once (bug report
6564 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
6565 * testsuite/objc: New testsuite for Objective-C type encoding.
6566 * testsuite/lib/objc-torture.exp: New file.
6567 * testsuite/lib/objc.exp: New file.
6569 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
6571 * jump.c (jump_optimize): In if/then/else transformations, add
6572 another call to modified_between_p for the jump insn.
6574 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
6576 * fix-header.c (symlink): Treat like readlink.
6578 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6580 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
6583 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
6585 * config/nextstep.h: Update HANDLE_PRAGMA macro.
6586 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
6587 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
6589 * config/nextstep.c (handle_pragma): Take three arguments, as per
6590 the new HANDLE_PRAGMA macro specification.
6591 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
6592 per the new HANDLE_PRAGMA macro specification.
6593 * config/i960/i960.c (process_pragma): Take three arguments, as
6594 per the new HANDLE_PRAGMA macro specification.
6596 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
6598 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
6599 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
6600 if unknown pragmas are encountered.
6601 (handle_sysv_pragma): Interpret return code from
6602 handle_pragma_token (). Return success/failure indication rather
6603 than next unprocessed character.
6604 (pragma_getc): New function: retrieves characters from the
6605 input stream. Defined when HANDLE_PRAGMA is enabled.
6606 (pragma_ungetc): New function: replaces characters back into the
6607 input stream. Defined when HANDLE_PRAGMA is enabled.
6609 * c-pragma.c (handle_pragma_token): Return success/failure status
6612 * c-pragma.h: Change prototype of handle_pragma_token().
6614 * varasm.c: (handle_pragma_weak): Only create this function if
6615 HANDLE_PRAGMA_WEAK is defined.
6617 * c-common,c (decl_attributes): If defined call the expression
6618 contained within the INSERT_ATTRIBUTES macro before adding
6619 attributes to a decl.
6621 * tm.texi (HANDLE_PRAGMA): Document the new verion of
6622 HANDLE_PRAGMA, which takes three arguments.
6623 (INSERT_ATTRIBUTES): Document this new macro.
6625 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
6626 new INSERT_ATTRIBUTES macro.
6628 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6630 * config/sparc/sparc.md (movdf): Only generate special RTL for
6631 LABEL_REFs when PIC.
6632 (move_label_di): Remove
6633 (movdi_pic_label_ref, movdi_high_pic_label_ref,
6634 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
6635 references when PIC.
6636 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
6637 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
6638 output an .xword for all 64-bit cases.
6640 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6642 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
6643 alignment, use FUNCTION_BOUNDARY instead.
6644 (sparc_output_deferred_case_vectors): Likewise.
6646 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6648 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
6649 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
6651 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
6653 * alpha/va_list.h: New file.
6654 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
6656 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
6658 * NEWS: Add SCO Openserver and Unixware 7 notes.
6662 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
6664 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
6665 (record_constant_1): Handle RANGE_EXPR.
6667 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
6669 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
6670 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
6671 and NOTE_INSN_RANGE_END specially.
6672 (reemit_notes): Likewise.
6674 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6676 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
6677 (ultrasparc_sched_init): Remove unneeded &.
6679 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
6681 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
6682 for m68020-60, to prevent the use of fintrz.
6684 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
6686 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
6688 * Makefile.in: Likewise.
6689 * configure: Regenerated.
6691 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
6693 * configure.in (gxx_include_dir): Changed to
6694 '${prefix}/include/g++'-${libstdcxx_interface}.
6695 * configure: Rebuilt.
6697 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
6699 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
6701 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
6702 *sequences* *below* which scalar moves will be used.
6704 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
6706 * collect2.c (mktemp): Delete unused declaration.
6708 * config/xm-netbsd.h: Remove unnecessary file.
6709 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
6710 file anymore, it is not needed.
6712 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
6714 * convert.c (convert_to_integer): Issue an error on conversions to
6717 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
6719 * Makefile.in: Add lang_tree_files and gencheck.h.
6720 * configure.in: Generate them.
6721 * gencheck.c: Include gencheck.h.
6723 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6725 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
6726 movdi_lo_sum_pic and movdi_high_pic and make visible.
6727 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
6728 emit these when Pmode is not SImode.
6729 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
6731 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
6733 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
6734 .linkonce directive after the first time.
6736 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
6738 * m68k.md (beq0_di): Generate correct (and more efficient) code when
6739 the clobbered operand overlaps with an input.
6740 (bne0_di): Similarly.
6742 * Makefile.in (INSTALL): Remove "--no-header" argument.
6744 * NEWS: Various updates.
6746 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6748 * config/sparc/sparc.c (arith_operand, const64_operand,
6749 const64_high_operand, arith_double_4096_operand): Mark mode as
6751 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
6753 (sparc_emit_set_const64): Remove unused variable i.
6754 (sparc_splitdi_legitimate): Likewise for addr_part.
6755 (ultra_code_from_mask): Likewise for mask.
6756 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
6757 reverse return values so it matches usage and comments.
6758 (ultra_flush_pipeline): Likewise.
6759 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
6760 this_type, and allow loads and stores of differing FP modes as
6761 they do not create a conflict.
6762 (ultra_find_type): Initialize fpmode to SFmode, fix
6763 parenthesization thinkos in large conditional.
6764 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
6765 Init free_slot_mask after ultra_cur_hist is reset, not before.
6766 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
6767 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
6768 use ultra_flush_pipeline instead, then re-init group pointer.
6769 Fix statement with no effect. If no progress made in, and no
6770 instructions scheduled at all, advance to new pipeline cycle else
6771 we get into an endless loop.
6772 (ultrasparc_adjust_cost): Remove previous arg.
6773 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
6775 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
6777 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
6778 code. Use reg_overlap_mentioned_p to detect when source and
6779 destination overlap.
6780 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
6782 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
6784 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
6785 COMPARISON_VAL, into invariant_p.
6787 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6789 * regmove.c (regclass_compatible_p): New function.
6790 (regmove_optimize): Use it.
6792 Use NREGS parameter insted of calling max_reg_num.
6794 (fixup_match_1): Don't use code = MINUS when later tieing with
6795 a hard register is likely.
6797 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6799 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
6800 COMPARISON_VAL was normalized.
6802 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
6804 * loop.c (check_dbra_loop): The loop ending comparison value
6805 must be an invariant or we can not reverse the loop.
6807 * loop.c (scan_loop): Count down from max_reg_num - 1 to
6808 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
6810 (load_mems_and_recount_loop_regs_set): Likewise.
6812 * i386.c (print_operand): Remove obsolete 'c' docs.
6814 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
6816 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
6817 * frame.c (init_object_mutex): New function.
6818 (init_object_mutex_once): Likewise.
6819 (find_fde): Call it.
6820 (__register_frame_info): Likewise.
6821 (__register_frame_info_table): Likewise.
6822 (__deregister_frame_info): Likewise.
6824 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
6826 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
6828 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6830 * loop.c (check_dbra_loop): Enable code for reversal
6831 of some loops without a known constant loop end.
6833 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
6835 * haifa-sched.c (last_clock_var): New.
6836 (schedule_block): Initialize it.
6837 (schedule_insn): Use it to fill insn modes with issue information.
6839 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
6840 Tag trapb and next insn with TImode.
6841 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
6842 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
6843 Invoke alphaev5_align_insns as appropriate.
6844 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
6845 (MD_SCHED_VARIABLE_ISSUE): New.
6846 * alpha.md (attr type): Add multi.
6847 (define_asm_attributes): New.
6848 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
6849 (arg_home): Likewise.
6850 (fnop, unop, realign): New.
6852 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
6854 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
6855 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
6857 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
6858 (rs6000-ibm-aix4.[12]*): Likewise.
6859 * configure: Regnerate.
6861 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
6863 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
6864 already contains the return address.
6866 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
6868 * calls.c (expand_call): Use bitfield instructions to extract/deposit
6869 word sized hunks when loading unaligned args into registers.
6871 * haifa-sched.c (sched_analyze_insn): Only create scheduling
6872 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
6874 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
6876 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6878 * loop.c (check_dbra_loop): Add some code that would allow reversal
6879 of some loops without a known constant loop end if it were enabled.
6881 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
6883 * mips.md (lshrsi3_internal2+2): Fix type-o.
6885 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6887 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
6888 correctly with regards to stdio.h.
6890 * calls.c: Remove stdarg.h/varargs.h.
6893 * combine.c: Likewise.
6894 * cpperror.c: Likewise.
6895 * cpplib.c: Likewise.
6896 * cpplib.h: Likewise.
6897 * doprint.c: Likewise.
6898 * emit-rtl.c: Likewise.
6899 * final.c: Likewise.
6900 * fix-header.c: Likewise.
6902 * genattr.c: Likewise.
6903 * genattrtab.c: Likewise.
6904 * gencodes.c: Likewise.
6905 * genconfig.c: Likewise.
6906 * genemit.c: Likewise.
6907 * genextract.c: Likewise.
6908 * genflags.c: Likewise.
6909 * genopinit.c: Likewise.
6910 * genoutput.c: Likewise.
6911 * genpeep.c: Likewise.
6912 * genrecog.c: Likewise.
6913 * mips-tfile.c: Likewise.
6914 * prefix.c: Likewise.
6915 * protoize.c: Likewise.
6916 * regmove.c: Likewise.
6917 * toplev.c: Likewise.
6920 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6922 * config/sparc/sparc.c (sparc_override_options): If not
6923 TARGET_FPU, turn off TARGET_VIS.
6924 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
6925 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
6926 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
6927 (movdi_insn_sp64): Add VIS fzero alternative.
6928 (clear_sf, clear_df): New VIS patterns.
6929 (movsf, movdf expanders): Allow fp_zero_operand flat out when
6931 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
6933 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
6935 * loop.c (n_times_set, n_times_used, may_not_optimize,
6936 reg_single_usage): Convert to varrays. All uses changed.
6937 (insert_loop_mem): Return a value.
6938 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
6939 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
6942 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
6945 * configure.in: Do not set thread_file to "irix" since no such
6948 * sparc.md (float abs/neg splits): Check reload_completed before
6949 calling alter_subreg.
6951 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6953 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
6955 * config/sparc/sparc.h: Declare it.
6956 * config/sparc/sparc.md (float abs/neg splits): Use it.
6957 (all other splits): Handle SUBREGs properly where necessary.
6958 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
6960 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
6962 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
6963 an insn on the unfilled_slots_list that has no delay slots.
6964 (fill_eager_delay_slots): Similarly.
6966 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
6968 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
6969 as an ordinary operand.
6971 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
6973 * tree.c (valid_machine_attribute): Don't apply attributes to both
6976 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
6978 * reload.c (operands_match_p): Handle rtvecs.
6980 * i386.c (legitimate_pic_address_disp_p): New.
6981 (legitimate_address_p): Use it.
6982 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
6983 Handle constant pool symbols just like statics.
6984 (emit_pic_move): Use Pmode not SImode for clarity.
6985 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
6986 [UNSPEC]: New, handling what we killed above.
6987 [PLUS]: Detect and abort on invalid symbol arithmetic.
6988 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
6990 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
6992 * alias.c: Include output.h.
6993 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
6994 different if we're in a varargs function.
6995 * Makefile.in (alias.o): Depend on output.h
6997 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6999 * sh.h (GIV_SORT_CRITERION): Delete.
7001 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
7003 * regclass.c (regclass): Use xmalloc/free instead of alloca.
7004 * stupid.c (stupid_life_analysis): Ditto.
7005 * reload1.c (reload): Ditto.
7007 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
7009 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
7010 arith_double_4096_operand, arith_double_add_operand): New
7012 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
7013 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
7014 them to transform add/sub 4096 into add/sub -4096.
7016 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7018 * loop.c (scan_loop): Allocate some slop to handle pseudos
7019 generated by move_movables.
7020 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
7023 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
7025 * tree.def (DECL_RESULT): Correct documentation.
7027 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7029 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
7030 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
7031 conflicts will all RELOAD_FOR_OUTPUT reloads.
7033 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
7034 loads the function result, substitute with a USE.
7036 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
7038 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
7039 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
7040 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
7041 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
7042 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
7043 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
7045 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
7046 'o' to 'm' for GPR variant constraints.
7048 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
7050 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
7052 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
7054 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
7055 when the source and destination overlap.
7057 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
7058 clash with global type.
7060 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
7062 * fixinc.irix: Add curses.h handling from fixinc.wrap.
7064 * c-common.c (combine_strings): Also set TREE_READONLY.
7065 Change warn_write_strings to flag_const_strings.
7066 * c-decl.c, c-tree.h: Likewise.
7068 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7070 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
7071 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
7072 sequence, use SET/IOR instead so CSE can see it.
7073 * config/sparc/sparc.md (movhi_const64_special,
7074 movsi_const64_special): New patterns necessitated by that change.
7075 (movhi_high): Remove.
7076 (movhi_lo_sum): Change to match an IOR.
7077 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
7078 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
7079 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
7080 (movdf splits): Allow when not V9 or when not ARCH64 and integer
7081 registers are involved.
7082 (snesi_zero_extend split): Remove reload_completed test.
7083 (unnamed plus and minus zero_extend sidi splits): Add it.
7085 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
7087 * extend.texi: Remove description of extension to explicit
7088 instantiation that is now endorsed by standard C++.
7090 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7092 * config/arc/arc.c (arc_initialize_pic): Remove.
7093 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
7094 nothing on any platform and is invoked by no-one, it does not even
7095 appear in the documentation.
7096 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
7097 * config/sparc/sparc.c (initialize_pic): Likewise.
7098 (find_addr_reg): Remove this as well, no longer referenced after
7101 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
7103 * recog.c (validate_replace_rtx_group): New function.
7104 * recog.h (validate_replace_rtx_group): Declare it.
7105 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
7106 the entire group of substitutions.
7108 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
7110 * loop.c (load_mems): Fix initializers.
7112 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7114 * config/sparc/sparc.md (TFmode splits): Handle destination
7115 registers being referenced in the address correctly.
7117 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
7118 TREE_UNSIGNED, when bitsize of type's mode is larger than
7119 HOST_BITS_PER_WIDE_INT.
7121 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
7123 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
7124 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
7125 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
7127 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
7130 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
7132 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
7133 * h8300.h (TINY_DATA_NAME_P): Likewise.
7134 (STRIP_NAME_ENCODING): Handle '&'.
7136 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
7137 register (it could be accessed via an outer SUBREG).
7138 (REG_OK_FOR_BASE_P): Likewwise.
7139 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
7141 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
7144 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
7146 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7148 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
7149 must be offsettable so the splits can be made.
7151 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
7153 * config/i386/winnt.c: Include system.h, not stdio.h to get
7154 sys/param.h pulled in before rtl.h in case the system defines MIN
7157 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
7159 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
7161 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
7163 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
7165 * cpplib.c (cpp_define): Handle macros with parameters.
7167 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
7169 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
7170 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
7171 and DImode 64-bit. Use llong for minimal-toc SFmode and
7172 SYMBOL_REF / LABEL_REF 64-bit.
7173 (output_function_profiler): Use llong for profiler label and ld to
7174 load 64-bit label address.
7176 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
7178 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
7181 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
7183 * version.c: Bump for snapshot.
7185 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
7187 * version.c: Bump for snapshot.
7189 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
7191 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
7193 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
7195 * tm.texi (Misc): Fix typo "teh".
7197 * tm.texi (PIC): Fix typo "PPIC".
7199 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
7200 effect when -O2 and higher.
7201 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
7203 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
7205 * regclass.c: Changed register set documentation to be consistent
7208 * final.c (final_start_function) Removed redundant test for
7211 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
7213 * rtl.h (rtx_function): New type.
7214 (for_each_rtx): New function.
7215 * rtlanal.c (for_each_rtx): Define it.
7217 * recog.c (change_t): New type.
7218 (change_objects, change_old_codes, change_locs, change_olds):
7220 (changes): New variable.
7221 (validate_change): Dynamically allocate room for more changes, if
7222 necessary. Uses changes array instead of change_objects, etc.
7223 (apply_change_group): Use changes array instead of
7224 change_objects, etc.
7226 * loop.c (loop_mem_info): New type.
7227 (loop_mems): New variable.
7228 (loop_mems_idx): Likewise.
7229 (looop_mems_allocated): Likewise.
7230 (scan_loop): Remove nregs parameter.
7231 (next_insn_in_loop): New function.
7232 (load_mems_and_recount_loop_regs_set): Likewise.
7233 (load_mems): Likewise.
7234 (insert_loop_mem): Likewise.
7235 (replace_loop_mem): Likewise.
7236 (replace_label): Likewise.
7237 (INSN_IN_RANGE_P): New macro.
7238 (loop_optimize): Don't pass max_reg_num() to scan_loop.
7239 (scan_loop): Remove nregs parameter, compute it after any new
7240 registers are created by load_mems. Use INSN_IN_RANGE_P and
7241 next_insn_in_loop rather than expanding them inline. Call
7242 load_mems to load memory into pseudos, if appropriate.
7243 (prescan_loop): Figure out whether or not there are jumps from the
7244 loop to targets other than the label immediately following the
7245 loop. Call insert_loop_mem to notice all the MEMs used in the
7246 loop, if it could be safe to pull MEMs into REGs for the duration
7248 (strength_reduce): Use next_insn_in_loop. Tweak comments.
7250 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
7252 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
7254 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7256 * config/sparc/sparc.c (finalize_pic): Check for the correct
7257 nonlocal_goto_receiver UNSPEC number.
7258 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
7259 making note of this dependency existing in sparc.c
7260 (negtf2_notv9 split): Give NEG SFmode.
7261 (negsf2): Fix insn output string.
7263 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
7265 * c-common.c (decl_attributes): Issue an error if the argument
7266 to alias is not a string.
7268 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
7270 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
7271 pending memory flush list.
7273 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
7275 (try_combine): Allow combining insns with REG_LIBCALL notes.
7277 * expr.c (emit_block_move): Do not call memcpy as a libcall
7278 instead build up a CALL_EXPR and call it like any other
7280 (clear_storage): Similarly for memset.
7282 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
7285 * Makefile.in (cplus-dem.o): Provide explicit rules for building
7288 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
7289 and REG_LIVE_LENGTH as successful substitutions are made.
7291 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7293 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
7294 statement after end of loop label.
7296 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7298 * config/sparc/sparc.c (ultra_types_avail): New variable.
7299 (ultra_build_types_avail): New function to record mask of insn
7300 types in ready list at this cycle.
7301 (ultrasparc_sched_reorder): Call it.
7302 (ultra_find_type): Use it to quicken the search. Also simplif
7303 dependency check, don't use rtx_equal_p because we know exactly
7304 what we are looking for.
7306 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
7308 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
7309 for architecture v4.
7311 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7313 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
7315 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
7316 movdf_const_intreg and helper splits): New patterns to move float
7317 constants into integer registers.
7318 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
7321 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
7324 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
7326 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
7328 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
7329 a BASE_REGS register is needed as an intermediate when copying
7330 a symbolic value into any register class other than BASE_REGS.
7332 * expr.c (move_by_pieces): No longer static. Remove prototype.
7333 * rtl.h (move_by_pieces): Add extern prototype.
7334 * mips.c (expand_block_move): Handle aligned straight line copy by
7335 calling move_by_pieces.
7337 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
7340 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
7342 * stmt.c (expand_end_loop): Tidy. Allow unconditional
7343 jumps out of the loop to be treated as part of the exit test.
7345 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7346 Jeff Law <law@cygnus.com>
7348 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
7349 * cplus-dem.c: Delete.
7351 * Makefile.in (fold-const.o): depend on $(RTL_H).
7353 * fold-const.c: Include rtl.h to get the prototype for
7354 `set_identifier_local_value'.
7356 * loop.c (express_from_1): Remove unused variable `tmp'.
7357 (combine_givs): cast the first argument of bzero to char *.
7359 * toplev.c (display_help): Remove unused variable `looking_for_start'.
7361 * c-decl.c (init_decl_processing): Remove unneeded &.
7363 * alpha.h (alpha_initialize_trampoline): Provide prototype.
7365 * except.c (set_exception_lang_code, set_exception_version_code):
7366 Change parameter from `short' to `int' to avoid using a gcc
7369 * except.h (set_exception_lang_code, set_exception_version_code):
7370 Likewise for prototypes.
7372 * flow.c (count_reg_references): Remove unused variables `regno'
7375 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
7377 * prefix.c (translate_name): Cast the result of `alloca'.
7379 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
7381 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
7383 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
7385 (valid_dbcc_comparison_p): Mark mode argument as unused.
7386 (symbolic_operand): Likewise.
7387 (legitimize_pic_address): Likewise.
7388 (const_uint32_operand): Likewise.
7389 (const_sint32_operand): Likewise.
7390 * sched.c [!INSN_SCHEDULING]: Define only dummy function
7391 schedule_insns and comment out rest of file.
7393 * m68k.c (output_move_simode_const): Use subl to move a zero into an
7395 (output_move_[hq]imode): Likewise.
7397 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
7399 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
7400 * invoke.texi: Corresponding changes.
7402 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
7404 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
7406 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7408 * config/sparc/sparc.c (ultra_code_from_mask,
7409 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
7410 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
7411 ultrasparc_sched_init, ultrasparc_variable_issue,
7412 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
7413 functions to describe UltraSPARC pipeline exactly to Haifa.
7414 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
7415 as there is nothing the scheduler can do about it. Indicate that
7416 REG_DEP_OUTPUT's collide. Fixup formatting.
7417 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
7418 divide costs on Ultra for DImode.
7419 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
7421 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
7422 ieuN and add call_no_delay_slot to type list.
7423 (cti function unit): New unit for branches on UltraSPARC.
7424 (subx/addx insns): Set type to misc.
7425 (sidi zero/sign extension insns on arch64): Set type to shift.
7426 (sign_extendhidi2_insn): Set type to sload.
7428 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
7430 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
7431 (output_epilog): Use if != 0 for offset.
7432 (rs6000_fatal_bad_address): Prepare for Intl.
7433 * rs6000.h (rs6000_fatal_bad_address): Declare.
7434 * rs6000.md (movsfcc, movdfcc): Use else if.
7435 (elf_high): Use {liu|lis}.
7436 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
7437 (movsi): Use rs6000_fatal_bad_address.
7439 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
7441 * reload.c (find_equiv_reg): Reject equivalences separated
7442 by a volatile instruction.
7444 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
7446 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
7448 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
7450 * alpha.md (movsicc): Fix mode mismatch.
7452 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
7454 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
7456 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
7458 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7460 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
7461 write-only modifier from operand 1 constraint.
7463 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7465 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
7466 emitting a XOR of -1 at the end, emit a NOT instead for combine's
7468 (sparc_emit_set_const64): Likewise, also when computing trailing
7469 bits do not negate low_bits and make fast_int an int.
7471 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
7473 * loop.c (add_label_notes): Do not ignore references to labels
7474 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
7475 * gcse.c (add_label_notes): Similarly.
7477 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
7479 * m68k.md (adddi_dilshr32): One of the operands must be a register.
7480 (adddi_dishl32): Similarly.
7482 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
7484 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
7485 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
7486 * cse.c (cse_basic_block): Add parens to shut up warnings.
7488 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7490 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
7491 sparc_emit_set_const64_longway, const64_is_2insns,
7492 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
7493 in 64-bit constant formation.
7494 * config/sparc/sparc.md (snesi_zero_extend split): Generate
7495 rtl for addx not subx.
7496 (define_insn movdi_const64_special): Make available even when
7497 HOST_BITS_PER_WIDE_INT is not 64.
7498 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
7499 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
7500 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
7501 instances of operand 1 inside a QI subreg.
7502 (xordi3_sp64_dbl): Remove '%' constraint for op1.
7503 (one_cmpldi2_sp64): Fix output string.
7504 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
7506 (unnamed arch64 ashift DI): Truncate shift count if greater than
7509 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7511 * expr.c (store_expr): Don't optimize away load-store pair
7512 when either source or destination have a side effect.
7514 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
7516 * genrecog.c (add_to_sequence): Fatal error if the modes of the
7517 operands of SET are incompatible.
7519 * alpha.md: Fix max and min patterns so modes of SET operands match.
7521 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
7523 * configure.in: Avoid [[ by using test and changequote.
7524 * configure: Rebuild.
7526 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7528 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
7530 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
7531 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
7532 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
7533 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
7534 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
7535 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
7536 Fix mismatching modes in SET operands.
7537 (conditional move patterns): Fix formatting.
7538 (unnamed subx arch64 pattern): Remove duplicate insn.
7540 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7542 * config/sparc/sparc.c (const64_operand, const64_high_operand):
7543 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
7544 (input_operand): Fixup test for what we accept for constant
7546 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
7548 (safe_constDI): Remove.
7549 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
7550 gen_safe_XOR64): New functions.
7551 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
7552 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
7554 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
7555 available when HOST_BITS_PER_WIDE_INT is not 64.
7556 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
7557 move before movdi_insn_sp64 pattern.
7558 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
7559 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
7560 symbolic_operand as predicate for second operand.
7561 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
7562 expander): Give set VOIDmode.
7564 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
7566 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
7568 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
7570 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
7572 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
7574 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
7576 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
7578 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
7580 * install.texi: Various SCO OpenServer tweaks.
7582 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
7584 * reload1.c (eliminate_regs_in_insn): Handle another case when
7585 eliminating the frame pointer to the hard frame pointer. Add
7586 missing ep->to_rtx check to one existing case.
7588 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
7590 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
7592 * tree.h: De-conditionalize init_priority code.
7594 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
7595 * collect2.c (NM_FLAGS): Change from -p to -n.
7597 * configure.in: Turn on collect2 for mipstx39-elf.
7598 Handle use_collect2=no properly.
7600 * c-common.c: De-conditionalize init_priority code.
7601 * collect2.c (extract_init_priority, sort_ids): New fns.
7602 (main): Call sort_ids.
7603 Move sequence_number to file scope.
7605 * configure.in: Handle --enable-init-priority.
7606 * c-common.c (attrs): Add A_INIT_PRIORITY.
7607 (init_attributes, decl_attributes): Likewise.
7608 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
7609 * tree.c (get_file_function_name_long): Split out...
7610 (get_file_function_name): ...from here.
7612 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
7614 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
7617 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
7619 * toplev.c (display_help): Add braces to shut up warnings.
7620 * tree.c (simple_cst_equal): Likewise.
7622 * fold-const.c (non_lvalue): Don't deal with null pointer
7624 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
7626 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
7627 of any size to a pointer.
7629 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
7631 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
7633 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
7635 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
7636 which will be saved.
7637 * mn10300.md (prologue insn): Only save registers which need saving.
7638 (epilogue insn): Similarly.
7640 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
7643 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
7645 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
7646 VAR_DECL's in gp addressable sections.
7648 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
7650 * sparc.c: Change return <exp> to <exp>; return; in functions
7652 * sparc.md: Add empty semicolon statement after final label in
7655 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7657 * config/sparc/sparc.md (define_insn addx_extend): Rename to
7658 addx_extend_sp64, only allow when TARGET_ARCH64.
7659 (define_insn addx_extend_sp32 and split): Version that works when
7661 (define_insn subx_extend): Likewise.
7662 (define_split adddi3 and subdi3 with zero extension): Fixup and
7663 correct bugs when not TARGET_ARCH64.
7665 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
7667 * except.c (set_exception_lang_code, set_exception_version_code):
7668 Use prototype-style definition if __STDC__, to match declaration
7671 * genemit.c: Change FAIL and DONE macros not to use loops.
7673 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
7675 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
7676 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
7678 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
7680 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
7682 * README.g77: Update from Craig.
7684 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7686 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
7688 (safe_constDI sparc_emit_set_const64_quick1,
7689 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
7690 analyze_64bit_constant, const64_is_2insns,
7691 create_simple_focus_bits): Fix some bugs when compiled on real
7693 (function_arg_record_value_3, function_arg_record_value_2,
7694 function_arg_record_value): Add fully prototyped forward decls.
7695 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
7696 to cmpsi_insn and use on both 64 and 32 bit targets.
7697 (define_insn cmpsi_insn_sp64): Remove.
7698 (define_expand zero_extendsidi2): Allow for 32-bit target too.
7699 (define_insn zero_extendsidi2_insn): Rename to
7700 zero_extendsidi2_insn_sp64.
7701 (define_insn zero_extendsidi2_insn_sp32): New pattern and
7702 assosciated forced split for it.
7704 * config/sparc/sparc.c (const64_operand, const64_high_operand):
7706 * config/sparc/sparc.h: Declare them.
7707 (PREDICATE_CODES): Add them.
7708 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
7709 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
7711 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
7713 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
7714 in v9 case as the latter makes the Solaris assembler crash.
7716 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7718 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
7719 for TFmode when !v9. We require offsettable memory addresses.
7720 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
7721 DFmode register number conversions.
7722 * config/sparc/sparc.md (define_split DFmode moves): If register
7723 is a SUBREG do alter_subreg on it before using.
7724 (define_expand movtf): Fixup comment about alignment on v9.
7725 (define_split TFmode moves): Don't use gen_{high,low}part, create
7726 explicit SUBREGs instead.
7728 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
7730 * Makefile.in (mbchar.o): Depend on mbchar.c.
7732 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7733 Richard Henderson <rth@cygnus.com>
7735 Rewrite Sparc backend for better code generation and
7736 improved sparc64 support.
7737 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
7739 * config/sparc/sysv4.h: Likewise.
7740 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
7741 move_operand, v8plus_regcmp_op, emit_move_sequence,
7742 singlemove_string, doublemove_string, mem_aligned_8,
7743 output_move_double, output_move_quad, output_fp_move_double,
7744 move_quad_direction, output_fp_move_quad, output_scc_insn):
7746 (small_int_or_double): New predicate.
7747 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
7748 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
7749 old pic_{sethi,lo_sum}_si patterns.
7750 (mem_min_alignment): New generic function to replace
7751 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
7752 available and can test for arbitrary alignments. All callers
7754 (save_regs, restore_regs, build_big_number,
7755 output_function_prologue, output_cbranch, output_return,
7756 sparc_flat_save_restore, sparc_flat_output_function_prologue,
7757 sparc_flat_output_function_epilogue): Prettify
7759 (output_function_epilogue): Likewise and add code to output
7760 deferred case vectors.
7761 (output_v9branch): Likewise, add new arg INSN and use it to tack
7762 on branch prediction settings. All callers changed.
7763 (print_operand): Likewise and output %l44 for LO_SUMs when
7765 (sparc_splitdi_legitimate): New function to make sure DImode
7766 splits can be run properly when !arch64.
7767 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
7768 Reformat example code in comments.
7769 (set_extends): Remove UNSPEC/v8plus_clear_high case.
7770 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
7771 of deferred case vectors we need to output.
7772 (sparc_defer_case_vector): Record a case vector.
7773 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
7774 sparc_output_deferred_case_vectors): New functions to output them.
7775 (sparc_emit_set_const32): New function to form 32-bit constants in
7776 registers when that requires more than one instruction.
7777 (safe_constDI, sparc_emit_set_const64_quick1,
7778 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
7779 analyze_64bit_constant, const64_is_2insns,
7780 create_simple_focus_bits, sparc_emit_set_const64): New functions
7781 which do the same for 64-bit constants when arch64.
7782 (sparc_emit_set_symbolic_const64): New function to emit address
7783 loading for all code models on v9.
7784 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
7785 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
7786 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
7787 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
7788 inaccuracies in comments, add symbolic and text_segment operands
7789 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
7790 GENERAL_REGS in these cases as a temp REG is needed to load these
7791 addresses into a register properly.
7792 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
7794 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
7795 quads are guarenteed to have 16-byte alignment.
7796 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
7797 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
7798 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
7799 deferred case vector implementation.
7800 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
7801 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
7802 Generate "internal label - label" instead of "label - 1b".
7803 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
7804 (PREDICATE_CODES): Remove sparc_operand, move_operand,
7805 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
7807 (doublemove_string, output_block_move, output_fp_move_double,
7808 output_fp_move_quad, output_move_double, output_move_quad,
7809 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
7810 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
7811 (sparc_emit_set_const32, sparc_emit_set_const64,
7812 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
7813 mem_min_alignment, small_int_or_double): Add externs.
7814 * config/sparc/sparc.md: Document the many uses of UNSPEC and
7815 UNSPEC_VOLATILE in this backend.
7816 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
7817 unary to types which execute in it.
7818 (define_function_unit ieu_shift): Rename to ieu0.
7819 (define_function_unit ieu1): New, executes compare, call, and
7820 uncond_branch type insns.
7821 (define_function_units for type fdivs, fdivd, fsqrt): These
7822 execute in the fpu multiply unit not the adder on UltraSparc.
7823 (define_expand cmpdi): Disallow TARGET_V8PLUS.
7824 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
7825 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
7826 allows the arith_double_operand predicate and rHI constraint when
7828 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
7829 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
7830 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
7831 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
7832 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
7833 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
7834 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
7835 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
7836 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
7837 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
7838 sign_extendqihi2_insn, sign_extendqisi2_insn,
7839 sign_extendqidi2_insn, sign_extendhidi2_insn,
7840 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
7841 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
7842 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
7843 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
7844 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
7845 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
7846 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
7847 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
7848 smulsi3_highpart_v8plus, unnamed subreg mult,
7849 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
7850 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
7851 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
7852 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
7853 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
7854 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
7855 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
7856 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
7857 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
7858 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
7859 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
7860 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
7861 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
7862 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
7863 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
7864 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
7865 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
7866 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
7867 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
7868 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
7869 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
7870 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
7871 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
7872 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
7873 call_address_untyped_struct_value_sp32,
7874 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
7875 call_value_symbolic_sp32, call_value_address_sp64,
7876 call_value_symbolic_sp64, branch_sp32, branch_sp64,
7877 flush_register_windows, goto_handler_and_restore,
7878 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
7879 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
7880 return_addsi, return_di, return_adddi, return_sf, all call+jump
7881 peepholes, trap, unnamed trap insns): Prettify output strings.
7882 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
7883 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
7884 Likewise and force + implement splits for integer cases.
7885 (define_insn return_sf_no_fpu): Likewise and allow to match when
7886 no-fpu because of our subreg SFmode splits.
7887 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
7888 zero_extendqidi2_insn, zero_extendhidi2_insn,
7889 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
7890 input_operand for second operand.
7891 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
7892 reg_or_0_operand for operand 2 so new splits can use it.
7893 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
7894 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
7896 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
7897 CONST_DOUBLEs for operand 2.
7898 (define_insn move_label_di): Likewise and label distance
7899 optimization because it no longer works with new deferred case
7900 vector scheme. To be revisited.
7901 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
7902 and allow reg_or_0_operand and J constraint for second operand.
7903 (define_insn jump): Set branch predict taken on V9.
7904 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
7905 new deferred case vector scheme.
7906 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
7907 (define_insn negdi2_sp32): Force + implement splits.
7908 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
7909 one_cmplsi2_not_liveg0 respectively, and create expander of original
7910 names which emit special rtl for TARGET_LIVE_G0.
7911 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
7912 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
7913 gen_compare_reg, FAIL instead.
7914 (define_insn sgtu, sleu): Likewise and check gen_s*() return
7915 values when trying to reverse condition codes, if they FAIL then
7917 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
7918 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
7919 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
7920 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
7921 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
7922 set output string to # to indicate they are mandatory splits.
7923 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
7924 pic_sethi_di, move_pic_label_si): Remove.
7925 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
7926 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
7928 (define_expand movsi_pic_label_ref, define_insn
7929 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
7930 expander and insns to handle PIC label references and deferred
7932 (define_insn get_pc_via_rdpc): Comment out as it is no longer
7934 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
7935 Rewrite to not use emit_move_sequence, make use of new constant
7936 formation code, and new splits for all multi-insn cases.
7937 (define_insn movqi_insn): Remove sethi case, it can never happen.
7938 Use reg_or_zero_operand instead of const0_rtx explicit test,
7939 use input_operand instead of move_operand for source, and use
7940 general_operand now for dest.
7941 (define_insn movhi_insn): Similar but leave sethi case.
7942 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
7943 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
7944 movhi_lo_sum respectively, prettify output string.
7945 (define_insn movsi_zero_liveg0): New pattern to put zero into a
7946 register when needed on TARGET_LIVE_G0.
7947 (define_insn movsi_insn): Use general_operand and input_operand
7948 for dest and src respectively. Simplify applicability test.
7949 Prettify output strings, and add clr alternative for J
7951 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
7952 deprecated std and reg-reg DI moves): Remove and...
7953 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
7954 implementation which uses forced splits for all non-single insn
7956 (define_split DI move cases on !arch64): New splits to handle all
7957 situations of 64-bit double register DImode on 32bit, and
7958 unaligned registers and memory addresses for all subtargets.
7959 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
7961 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
7962 input_operand for dest and src respectively, prettify output
7964 (define_insn movdf_insn, movdf_no_e_insn, store_df,
7965 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
7967 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
7968 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
7969 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
7970 movtf_no_e_insn_sp64) Replace with new
7971 implementation which uses forced splits for all non-single insn
7973 (define_split DF move cases): New splits in similar vein to DI
7975 (define_insn sethi_di_medlow, sethi_di_medium_pic,
7976 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
7977 movdi_sp64_insn): Remove old v9 code model and constant loading
7979 (define_insn pic_lo_sum_di, pic_sethi_di,
7980 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
7981 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
7982 embmedany_sethi, embmedany_losum, embmedany_brsum,
7983 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
7984 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
7985 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
7986 scheme, using unspecs, secondary reloads, and one to one sparc
7987 insn to rtl insn mapping for better scheduling and code gen.
7988 (define_expand reload_indi, reload_outdi): Reload helpers for
7989 MEDANY and EMBMEDANY symbol address loading cases which require a
7991 (define_expand movsicc): Remove v8plus_regcmp cases.
7992 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
7993 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
7994 cmp_diqi_trunc_set): New patterns used by some of the new scc
7996 (define_insn xordi3_sp64_dbl): New pattern used for constant
7997 formation when crossing from 32-bit targets.
7998 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
8000 (define_insn addx, subx): Make visible and prettify.
8001 (define_insn adddi3_insn_sp32): Likewise and force split.
8002 (define_insn addx_extend, subx_extend, unnamed): New patterns for
8003 64bit scc split usage.
8004 (define_insn unnamed plusDI zero_extend, unnamed minusDI
8005 zero_extend, subdi3): Force and implement splits.
8007 * final.c (final_scan_insn): Don't output labels if target
8008 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
8011 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
8012 don't forget to walk inside SEQUENCESs too as these are what the
8013 delay slot scheduler will create.
8015 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
8017 * alpha.md (extxl+1,+2): New patterns to work around
8020 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
8022 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
8023 caused bad assembly code to be generated.
8025 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
8027 * netbsd.h: Fix typo.
8029 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
8031 * config.sub: Fix typo.
8033 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
8035 * invoke.texi (Environment Variables): Typo: Change "ascpects"
8037 (Running Protoize): Typo: Change "ther" into "other".
8039 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
8041 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
8042 * m68k/netbsd.h: Likewise.
8043 * ns32k/netbsd.h: Likewise.
8044 * sparc/netbsd.h: Likewise.
8046 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
8048 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
8049 * ginclude/va-clipper.h (va_list): Likewise.
8051 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
8053 * rs6000.c (rs6000_override_options): If big endian and -Os, use
8054 load/store multiple instructions unless user overrides.
8056 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
8058 * ns32k/netbsd.h: Fix typo.
8060 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
8062 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
8063 labels with .debugsym if no parallel insns.
8065 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
8067 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
8068 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
8070 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
8072 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
8073 (AR_FOR_TARGET): Define.
8075 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
8077 * dyn-string.h: New file.
8078 * dyn-string.c: Likewise.
8079 * Makefile.in (OBJS): Add dyn-string.o.
8080 (dwarf2out.o): Add dyn-string.h dependency.
8081 (dyn-string.o): List dependencies.
8082 * dwarf2out.c: Include dyn-string.h.
8083 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
8084 (addr_const_to_string): Take a dyn_string_t, not a char* as a
8085 prototype. Use dyn_string_append rather than strcat, throughout.
8086 (addr_to_string): Use dyn_string_t.
8088 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
8090 Function entry/exit profiling instrumentation:
8091 * expr.h (profile_function_entry_libfunc,
8092 profile_function_exit_libfunc): Declare new variables.
8093 * optabs.c: Define them here.
8094 (init_optabs): Initialize them.
8095 * tree.h (struct tree_decl): New flag
8096 no_instrument_function_entry_exit.
8097 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
8098 * c-decl.c (duplicate_decls): Merge it.
8099 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
8100 (init_attributes): Use it for "no_instrument_function".
8101 (decl_attributes): Handle it, for functions that have not yet been
8102 compiled. Set decl flag.
8103 * flags.h (flag_instrument_function_entry_exit): Declare new
8105 * toplev.c (flag_instrument_function_entry_exit): Define it here.
8106 (f_options): New option "instrument-functions".
8107 * function.h (struct function): New field instrument_entry_exit.
8108 * function.c (current_function_instrument_entry_exit): New
8110 (push_function_context_to, pop_function_context_from): Save and
8112 (expand_function_start): Set current_ variable, maybe emit return
8113 label and entry profile call.
8114 (expand_function_end): Maybe emit exit profile call.
8116 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
8118 * i386.md (movqi): When optimizing a load of (const_int 1) into a
8119 NON_QI_REG_P, pretend the register is SImode.
8121 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
8123 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
8124 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
8125 manufacturer id for ns32k.
8126 * configure: Regenerated.
8127 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
8128 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
8129 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
8130 * config/m68k/netbsd.h: Same.
8131 * config/ns32k/netbsd.h: Same.
8132 * config/sparc/netbsd.h: Same.
8134 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
8136 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
8137 or UNROLL_COMPLETELY loop that starts with a jump to its
8140 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
8142 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
8143 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
8144 (print_operand, case 'B'): Don't fall through.
8145 (print_operand, case 'S'): Correct mask begin/end computation.
8146 Use HOST_BITS_PER_WIDE_INT.
8147 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
8148 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
8149 * rs6000/aix41.h (CPP_PREDEFINES): Same.
8150 * rs6000/aix43.h (CPP_PREDEFINES): Same.
8152 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
8154 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
8155 constraint from second alternative.
8157 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
8159 * configure.in: Fix --without/--disable cases for local-prefix,
8160 gxx-include-dir and checking.
8162 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8164 * configure.in (enable_haifa): Set by default for sparc64 too.
8167 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
8169 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
8170 * i386/winnt.c (associated_type): New fn.
8171 (i386_pe_valid_type_attribute_p): New fn.
8172 (i386_pe_check_vtable_importexport): Remove.
8173 (i386_pe_dllexport_p): Use associated_type.
8174 (i386_pe_dllimport_p): Likewise.
8176 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
8177 * i386.c (i386_valid_type_attribute_p): Also accept
8178 attributes for METHOD_TYPEs.
8180 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
8182 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
8184 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
8186 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
8188 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
8189 them from generating a new base name for each occurence of
8192 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
8194 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
8196 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
8200 * cplus-dem.c (type_kind_t): New type.
8201 (demangle_template_value_parm): Add type_kind_t parameter. Rely
8202 on this paramter, rather than demangling the type again.
8203 (demangle_integral_value): Pass tk_integral.
8204 (demangle_template_: Pass the value returned from do_type.
8205 (do_type): Return a type_kind_t. Pass tk_integral to
8206 demangle_template_value_parm for array bounds.
8207 (demangle_fund_type): Likewise.
8209 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
8211 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
8214 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
8216 * pa.c (move_operand): Accept CONSTANT_P_RTX.
8218 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
8220 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
8222 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
8225 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
8227 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
8228 (DEBUGGER_ARG_OFFSET): Likewise.
8230 * mn10300.md (movsf): Remove last change. Not needed.
8232 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
8234 * c-lex.c (yylex): Fix boundary conditions in character literal and
8235 string literal loops.
8237 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
8239 * longlong.h (count_leading_zeros): Sparclite scan instruction was
8240 being invoked incorrectly.
8242 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
8243 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
8245 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
8246 * configure.in: Added i[34567]86-*-win32
8247 * config.sub: Ditto.
8248 * configure: Rebuilt.
8250 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
8252 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
8253 the frame pointer and compiling PIC code and reload has not completed.
8255 * i386.c (output_to_reg): Add code to emulate non-popping DImode
8258 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
8260 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
8262 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
8264 * Makefile.in (install-info): Only try to update the info
8265 directory file if it exists in the first place.
8267 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
8269 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
8271 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
8273 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
8274 CONST_DOUBLE source.
8276 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
8278 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
8279 strings as the insertion of USER_LABEL_PREFIX.
8280 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
8282 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
8285 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
8287 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
8288 already defined type.
8290 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
8292 * expr.c (check_max_integer_computation_mode): Allow conversions
8293 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
8294 (expand_expr): Likewise.
8296 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
8298 * expr.c (expand_expr): Expand RETURN_EXPR.
8300 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
8302 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
8304 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
8306 * dwarf2out.c (output_aranges): Call stripattributes
8307 for TEXT_SECTION references.
8308 (output_line_info): Likewise.
8310 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8312 * profile.c (branch_prob): Call allocate_reg_info after outputting
8313 profile rtl in instrument_arcs.
8315 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
8317 * fixinc.irix (math.h): Install wrapper instead of copying.
8319 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
8321 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
8322 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
8323 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
8324 lang_flag_0. Added documentation in the flag table.
8326 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
8328 * cccp.c (do_include): Fix vax c style include handling.
8330 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
8332 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
8334 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
8336 * fold-const.c (non_lvalue): Don't deal with null pointer
8338 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
8340 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
8342 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
8343 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
8344 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
8345 (u_short_cint_operand): Same.
8346 (reg_or_cint_operand): Same.
8347 (logical_operand): Same.
8348 (input_operand): Same.
8349 (reg_or_short_operand): Use u_short_cint_operand.
8351 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
8353 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
8354 but keep the insns and splits. Adjust so when the ultimate destination
8355 is memory, use cvtql.
8357 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
8359 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
8361 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
8363 * gcc.c (do_spec): Call "error" not "warning".
8365 * configure.in: Fix minor problems with gas feature detection code.
8366 * configure: Rebuilt.
8368 * gcc.c (do_spec): Issue a warning for '%[]' usage.
8371 * gcc.c: Delete %[spec] support.
8372 (do_spec_1, case '('): Likewise.
8373 (do_spec_1, case '['): Call error.
8375 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
8377 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
8378 (CPP_SUBTARGET_SPEC): Default to empty string.
8379 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
8380 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
8381 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
8382 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
8384 * alpha/linux.h (CPP_PREDEFINES): Tidy.
8385 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
8386 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
8387 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
8388 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
8389 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
8390 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
8391 * alpha/vxworks.h: Likewise.
8393 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
8395 * mips.md (reload_outsi): Added missing REGNO call.
8396 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
8398 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
8399 another match_operator and compare the codes.
8401 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
8403 * MIPS multiply pattern fixes:
8404 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
8405 Add union classes for HI, LO, or HILO plus general registers.
8406 (GENERATE_MADD): Deleted.
8407 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
8408 Add TARGET_MAD to condition.
8409 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
8410 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
8411 "*d" for accumulator, to give preference to LO initially but not
8414 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
8416 * configure.in (enable_c_mbchar): New configure option.
8417 (extra_cpp_objs): Always available now.
8419 * cexp.y (mbchar.h): #include it.
8420 (yylex): Handle Multibyte characters in character literals.
8422 * cccp.c (mbchar.h): #include it.
8423 (main): Set character set based on LANG environment variable.
8424 (rescan): Handle multibyte characters in comments.
8425 (skip_if_group): See above.
8426 (validate_else): See above.
8427 (skip_to_end_of_comment): See above.
8428 (macarg1): See above.
8429 (discard_comments): See above.
8430 (rescan): Handle multibyte characters in string and character literals.
8431 (collect_expansion): See above.
8432 (skip_quoted_string): See above.
8433 (macroexpand): See above.
8434 (macarg1): See above.
8435 (discard_comments): See above.
8436 (change_newlines): See above.
8438 * c-lex.c (mbchar.h): #include it.
8439 (GET_ENVIRONMENT): New macro.
8440 (init_lex): Set character set based on LANG environment variable.
8441 (yylex): Handle multibyte characters in character literals.
8442 (yylex): Handle multibyte characters in string literals.
8444 * Makefile.in (mbchar.o): New target.
8445 (cccp$(exeext)): @extra_cpp_objs@ is always available.
8446 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
8448 * mbchar.[ch]: New files for multibyte character handling.
8450 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8452 * jump.c (jump_optimize): When simplifying noop moves and
8453 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
8454 the PUSHes to rewrite in second loop as we did in the first.
8456 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
8458 * cplus-dem.c (demangle_nested_args): Make function definition
8459 static to match the prototype.
8461 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
8463 * alloca.c: Respect USE_C_ALLOCA.
8464 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
8465 * gengenrtl.c (xmalloc): Likewise.
8467 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
8469 * loop.h (struct induction): Add no_const_addval.
8470 * loop.c (the_movables, reg_address_cost): New variables.
8471 (init_loop): Init reg_address_cost.
8472 (loop_optimize): Call end_alias_analysis.
8473 (scan_loop): Init the_movables.
8474 (record_giv): Init induction->no_const_addval.
8475 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
8476 [REG]: Rearrange loop search test to catch more cases.
8477 (general_induction_var): Return success not benefit; take an extra
8478 argument for that. Change all callers.
8479 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
8480 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
8481 [default]: Search the_movables for additional combinations.
8482 (sge_plus_constant, sge_plus): New functions.
8483 (express_from_1): New function.
8484 (express_from): Always define. Rewrite using express_from_1.
8485 (combine_givs_p): Handle more cases. Ignore address cost.
8486 (cmp_combine_givs_stats): New function.
8487 (combine_givs_used_once, combine_givs_benefit_from): New functions.
8488 (combine_givs): Rewrite to do best-fit combination.
8490 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
8491 (fold): Do a complete (A*C)+(B*C) association check.
8493 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
8495 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
8497 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
8499 * mn10300.c (MODES_TIEABLE_P): Fix typo.
8501 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
8503 * tree.c (valid_machine_attribute): Only create a new type variant if
8504 there is a decl to use it.
8506 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
8508 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
8511 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
8513 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
8516 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
8518 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
8519 Simplify tests for clearing an address register.
8520 (expand_prologue): Corresponding changes.
8522 * mn10300.md (movXX patterns): Make sure the destination is an
8523 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
8524 (logical patterns): Split into expanders + patterns
8525 (zero and sign extension patterns): Similarly.
8526 (shift patterns): Similarly.
8528 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
8530 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
8531 for the sequence, recording base values.
8533 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
8535 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
8537 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
8539 * gcc.c: Remove ANSI-C ism from --help code.
8541 * toplev.c: Support --help with USE_CPPLIB.
8543 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
8545 * configure.in: Rework gas feature code to work with symlink based
8548 * extend.texi: Clarify some issues related to local variables
8549 assigned to explicit registers.
8551 * mn10300.md (mulsi): Turn into expander + pattern.
8553 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
8556 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
8558 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
8560 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
8562 * version.c: Bump again to distinguish mainline tree from the
8565 See ChangeLog.0 for earlier changes.
8568 add-log-time-format: current-time-string