1 Sun Jan 3 22:58:15 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3 * optabs.c (emit_cmp_insn): Abort if asked to emit non-canonical RTL
4 for a target with HAVE_cc0 defined.
5 (emit_cmp_and_jump_insns): New function.
6 * expr.h (emit_cmp_and_jump_insns): Prototype it.
7 * loop.c (check_dbra_loop): Use it to replace calls
8 to emit_cmp_insn and emit_jump_insn and to canonicalise
9 the comparison if necessary.
10 * unroll.c (unroll_loop): Likewise.
12 Sun Jan 3 21:01:04 1999 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
14 * fixincludes (sys/utsname.h): Provide forward declaration of
15 struct utsname on Ultrix V4.[35].
17 * mips.md (div_trap): Use local labels instead of dot-relative
20 Sun Jan 3 20:40:34 1999 Jeffrey A Law (law@cygnus.com)
22 * pa.md (branch, negated branch): Handle (const_int 0) as first
24 * pa.c (output_cbranch): Likewise.
26 Sun Jan 3 03:20:38 1999 David Edelsohn <edelsohn@mhpcc.edu>
28 * rs6000.c (rs6000_stack_info): Undo spurious part of last
31 1999-01-01 Manfred Hollstein <manfred@s-direktnet.de>
33 * extend.texi (__builtin_constant_p): Add missing @smallexample.
35 Fri Jan 1 11:48:20 1999 Jeffrey A Law (law@cygnus.com)
37 * i386.md (doubleword shifts): Fix dumb mistakes in previous change.
39 Wed Dec 30 23:38:55 1998 Jeffrey A Law (law@cygnus.com)
41 * m68k.md (adddi_dilshr32): Allow all operands to be registers too.
42 (adddi_dishl32): Similarly.
44 * cse.c (invalidate_skipped_block): Call invalidate_from_clobbers
45 for each insn in the skipped block.
47 * reload1.c (reload_as_needed): Verify that the insn satisfies its
48 constraints after replacing a register address with an autoincrement
49 address for reload inheritance purposes.
51 * i386.md (doubleword shifts): Avoid namespace pollution.
53 Wed Dec 30 23:00:28 1998 David O'Brien <obrien@NUXI.com>
55 * configure.in (FreeBSD ELF): Needs special crt files.
57 Wed Dec 30 22:50:13 1998 Geoffrey Noer <noer@cygnus.com>
59 * i386/xm-cygwin.h: change DIR_SEPARATOR to forward slash.
61 1998-12-30 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
63 * loop.c (check_dbra_loop): While reversing the loop, if the
64 comparison value has a VOID mode use the mode of the other operand
67 Wed Dec 30 22:24:00 1998 Michael Meissner <meissner@cygnus.com>
69 * rs6000.md ({save,restore}_stack_function): Take 2 operands to
70 avoid warnings in compiling explow.c.
72 (patch from Ken Raeburn, raeburn@cygnus.com)
73 * rs6000.c (rs6000_stack_info): Force 8-byte alignment of
74 fpmem_offset. Compute total size after that, and then
75 rs6000_fpmem_offset using both values.
77 Mon Dec 28 19:26:32 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
79 * gcc.texi (Non-bugs): ``Empty'' loops will be optimized away in
80 the future; indeed that already happens in some cases.
82 Tue Dec 29 11:58:53 1998 Richard Henderson <rth@cygnus.com>
84 * sparc.c (input_operand): Recognize (const (constant_p_rtx)).
85 (arith_operand): Remove constant_p_rtx handling.
86 (const64_operand, const64_high_operand): Likewise.
87 (arith11_operand, arith10_operand, arith_double_operand): Likewise.
88 (arith11_double_operand, arith10_double_operand, small_int): Likewise.
89 (small_int_or_double, uns_small_int, zero_operand): Likewise.
90 * sparc.h (PREDICATE_CODES): Likewise.
92 * rtl.h (CONSTANT_P): Remove CONSTANT_P_RTX.
94 Tue Dec 29 11:32:54 1998 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>:
96 * rtl.def (CONSTANT_P_RTX): Clarify commentary.
97 * expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
98 consider constant CONSTRUCTOR constant and to defer some cases
100 * cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
101 * regclass.c (reg_scan_mark_refs, case CONST): Likewise.
103 Tue Dec 29 11:30:10 1998 Richard Henderson <rth@cygnus.com>
105 * expr.c (init_expr_once): Kill can_handle_constant_p recognition.
106 * cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.
108 * alpha.c (reg_or_6bit_operand): Remove CONSTANT_P_RTX handling.
109 (reg_or_8bit_operand, cint8_operand, add_operand): Likewise.
110 (sext_add_operand, and_operand, or_operand): Likewise.
111 (reg_or_cint_operand, some_operand, input_operand): Likewise.
112 * alpha.h (PREDICATE_CODES): Likewise.
114 Sat Dec 26 23:26:26 PST 1998 Jeff Law (law@cygnus.com)
116 * version.c: Bump for snapshot.
118 Sat Dec 26 09:17:04 1998 Jeffrey A Law (law@cygnus.com)
120 * gengenrtl.c (gencode): Always use bzero to clear memory instead
121 of dangerous casts and stores.
123 * Makefile.in (compare, gnucompare): Add missing else true clauses.
125 Fri Dec 25 23:00:56 1998 Jeffrey A Law (law@cygnus.com)
127 * alpha.md (builtin_longjmp): Add missing "DONE".
129 Thu Dec 24 10:39:57 1998 Stan Cox <scox@cygnus.com>
131 * gcc.c (execute): Enable -pipe with win32.
133 Wed Dec 23 10:27:44 1998 Nick Clifton <nickc@cygnus.com>
135 * config/arm/t-arm-elf: Add multiplib option for leading
138 * config/arm/thumb.h (ASM_OUTPUT_LABELREF): Use variable
139 'user_label_prefix' rather than macro USER_LABEL_PREFIX.
141 (thumb_shiftable_const): Use macro 'BASE_REG_CLASS' rather
142 than variable 'reload_address_base_reg_class'. [Note this
143 change is unrelated to the others in this patch].
145 * config/arm/unknown-elf.h (USER_LABEL_PREFIX): Default to no
148 Wed Dec 23 09:51:32 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
150 * alias.c (record_alias_subset): Remove ignored `&'.
151 (init_alias_once): Likewise.
153 * c-lex.c (UNGETC): Cast first argument of comma expression to void.
155 * config/mips/mips.c (mips_asm_file_end): Cast the result of
156 fwrite to `int' when comparing against one.
158 * config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
159 (INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.
161 * cse.c (rehash_using_reg): Change type of variable `i' to
164 * dwarf2out.c (initial_return_save): Cast -1 to unsigned before
167 * except.c (duplicate_eh_handlers): Remove unused variable `tmp'.
169 * final.c (final_scan_insn): Likewise for variable `i'.
170 (output_asm_insn): Cast a char to unsigned char when used as an
173 * gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
176 * loop.c (strength_reduce): Remove unused variables `count' and `temp'.
178 * recog.c (preprocess_constraints): Cast a char to unsigned char
179 when used as an array index.
181 * regmove.c (find_matches): Likewise.
183 * reload1.c (calculate_needs): Add default case in switch.
184 (eliminate_regs_in_insn): Initialize variable `offset'.
185 (set_offsets_for_label): Change type of variable `i' to unsigned.
186 (reload_as_needed): Wrap variable `i' in macro check on
187 AUTO_INC_DEC || INSN_CLOBBERS_REGNO_P.
189 * scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
190 with ATTRIBUTE_UNUSED. Cast variable `start_written' to size_t
191 when comparing against one.
193 * stor-layout.c (layout_decl): Cast maximum_field_alignment to
194 unsigned when comparing against one. Likewise for
195 GET_MODE_ALIGNMENT().
196 (layout_record): Cast record_align to int when comparing against a
198 (layout_type): Cast TYPE_ALIGN() to int when comparing against a
201 * tree.c (get_identifier): Cast variable `len' to unsigned when
202 comparing against one.
203 (maybe_get_identifier): Likewise
205 Wed Dec 23 00:10:01 1998 Jeffrey A Law (law@cygnus.com)
207 * toplev.c (rest_of_compilation): Do not set reload_completed.
208 * reload1.c (reload): Set reload_completed before calling
209 cleanup_subreg_operands.
211 Tue Dec 22 23:58:31 1998 Richard Henderson <rth@cygnus.com>
213 * reload1.c (emit_reload_insns): Check `set' not null before use.
215 Tue Dec 22 15:15:45 1998 Nick Clifton <nickc@cygnus.com>
217 * rtlanal.c (multiple_sets): Change type of 'found' from 'rtx' to
220 Tue Dec 22 13:55:44 1998 Theodore Papadopoulo <Theodore.Papadopoulo@sophia.inria.fr>
222 * halfpic.c (half_pic_encode): Delete redundant code.
224 Tue Dec 22 13:02:22 1998 Michael Meissner <meissner@cygnus.com>
226 * toplev.c (main): Delete handling of -dM as a preprocessor
229 Mon Dec 21 17:39:38 1998 Michael Meissner <meissner@cygnus.com>
231 * toplev.c (main): Don't emit any warnings when using -dD, -dM, or
232 -dI, which are handled by the preprocessor.
234 Sun Dec 20 16:13:44 1998 John F. Carr <jfc@mit.edu>
236 * configure.in: Handle Digital UNIX 5.x the same as 4.x.
237 * i386/sol2.h: Define LOCAL_LABEL_PREFIX as ".".
239 Sun Dec 20 07:39:52 PST 1998 Jeff Law (law@cygnus.com)
241 * version.c: Bump for snapshot.
243 Sat Dec 19 22:24:22 PST 1998 Jeff Law (law@cygnus.com)
245 * version.c: Bump for snapshot.
247 Sat Dec 19 21:41:32 PST 1998 Jeff Law (law@cygnus.com)
249 * version.c: Bump for snapshot.
251 Sat Dec 19 09:52:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
253 * genattr.c (fatal): Qualify a char* with the `const' keyword.
255 * genattrtab.c (fatal, attr_printf, attr_string, write_attr_set,
256 write_unit_name, write_eligible_delay, expand_units,
257 make_length_attrs, write_attr_case, find_attr,
258 make_internal_attr): Likewise.
259 * gencheck.c (tree_codes): Likewise.
260 * gencodes.c (fatal): Likewise.
261 * genconfig.c (fatal): Likewise.
262 * genemit.c (fatal): Likewise.
263 * genextract.c (fatal, walk_rtx, copystr): Likewise.
264 * genflags.c (fatal): Likewise.
265 * genopinit.c (fatal, optabs, gen_insn): Likewise.
266 * genoutput.c (fatal, error, predicates): Likewise.
267 * genpeep.c (fatal): Likewise.
268 * genrecog.c (fatal, decision, pred_table, add_to_sequence,
269 write_tree_1, write_tree, change_state, copystr, indents): Likewise.
271 Thu Dec 17 18:21:49 1998 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
273 * configure.in (with-fast-fixincludes): Fix whitespace.
274 * configure: Rebuilt.
276 * fixincludes (c_asm.h): Wrap Digital UNIX V4.0B DEC C specific
277 asm() etc. function declarations in __DECC.
279 Thu Dec 17 13:57:23 1998 Nick Clifton <nickc@cygnus.com>
281 * expr.c (emit_move_insn_1): Only emit a clobber if the target
282 is a pseudo register.
284 Thu Dec 17 13:50:29 1998 Nick Clifton <nickc@cygnus.com>
286 * gcse.c: Include expr.h in order to get the prototype for
287 get_condition() which is used in delete_null_pointer_checks().
289 Thu Dec 17 15:58:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
291 * hwint.h: New file to consolidate HOST_WIDE_INT (etc) macros.
293 Thu Dec 17 12:31:12 1998 Jim Wilson <wilson@cygnus.com>
295 * Makefile.in (INTERNAL_CFLAGS): Add SCHED_CFLAGS.
296 (ALL_CFLAGS): Delete SCHED_CFLAGS.
298 1998-12-17 Vladimir N. Makarov <vmakarov@cygnus.com>
300 * config/i60/i960.md (extendqihi2): Fix typo (usage ',' instead of
303 1998-12-17 Michael Tiemann <tiemann@axon.cygnus.com>
305 * i960.md (extend*, zero_extend*): Don't generate rtl that looks
306 like (subreg:SI (reg:SI N) 0), because it's wrong, and it hides
307 optimizations from the combiner.
309 Thu Dec 17 08:27:03 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
311 * loop.c (combine_givs_used_by_other): Don't depend on n_times_set.
313 Wed Dec 16 17:30:35 1998 Nick Clifton <nickc@cygnus.com>
315 * toplev.c (main): Disable optimize_size if a specific
316 optimization level is requested. Always set optimization
317 level to 2 if -Os is specified.
319 Wed Dec 16 16:33:04 1998 Dave Brolley <brolley@cygnus.com>
321 * objc/lang-specs.h: Pass -MD, -MMD and -MG to cc1obj if configured with
323 * cpplib.c (cpp_start_read): If in_fname is not initialized, try to
324 initialize it using fname.
326 1998-12-16 Zack Weinberg <zack@rabi.phys.columbia.edu>
328 * cpplib.c (do_include): Treat #include_next in the
329 primary source file as #include plus warning. Treat
330 #include_next in a file included by absolute path as an
331 error. fp == CPP_NULL_BUFFER is a fatal inconsistency.
333 Wed Dec 16 12:28:54 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
335 * cccp.c: Don't define MIN/MAX anymore.
336 * cpplib.c: Likewise.
337 * machmode.h: Likewise.
338 * system.h: Provide definitions for MIN/MAX.
340 Tue Dec 15 23:47:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
342 * fix-header.c: Don't define xstrdup here.
344 Wed Dec 16 05:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
346 * loop.c (consec_sets_giv): New argument last_consec_insn.
347 (strength_reduce): Provide / use it.
349 Wed Dec 16 17:24:07 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
351 * loop.h (loop_info): New field 'vtop'.
352 * loop.c (check_dbra_loop): Use loop_info->vtop rather than
353 scanning loop for vtop.
354 * unroll.c (subtract_reg_term, find_common_reg_term): New functions.
355 (loop_iterations): Use them to determine if loop has a constant
356 number of iterations. Set loop_info->vtop. Don't subtract
357 common reg term from initial_value and final_value if have a
360 Tue Dec 15 13:49:55 1998 Jeffrey A Law (law@cygnus.com)
362 * mn10200.md (addsi3 expander): Use "nonmemory_operand" for operand 2.
364 * mn10300.md (bset, bclr): Operand 0 is a read/write operand.
366 * mn10200.md (abssf2, negsf2): New expanders.
368 * mn10300.md (absdf2, abssf2, negdf2, negsf2): New expanders.
370 Tue Dec 15 11:55:30 1998 Nick Clifton <nickc@cygnus.com>
372 * integrate.c (copy_rtx_and_substitute): If a SUBREG is
373 replaced by a CONCAT whoes components do not have the same
374 mode as the original SUBREG, use a new SUBREG to restore the
377 * emit-rtl.c (subreg_realpart_p): Cope with subregs containing
378 multiword complex values.
380 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
382 * cppalloc.c: Add xstrdup here.
383 * cpplib.h: Remove savestring prototype.
384 * cpplib.c: Remove savestring function. s/savestring/xstrdup/
386 * cppfiles.c: s/savestring/xstrdup/ throughout.
388 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
390 * cpplib.c: Make all directive handlers read their own
392 (struct directive): Remove last two arguments from FUNC
393 member prototype. Remove `command_reads_line' member
395 (directive_table): Remove initializations of
396 command_reads_line flag. Pretty-print.
397 (eval_if_expression, do_define, do_line, do_include,
398 do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
399 do_else, do_elif, do_sccs, do_assert, do_unassert,
400 do_warning): Take only two args.
402 (cpp_define): Call do_define with two args and the text to
403 define stuffed into a buffer.
404 (make_assertion): Call do_assert with two args.
405 (handle_directive): Call do_line with two args. Call
406 kt->func with two args. Remove command_reads_line
408 (do_define, do_undef, do_error, do_warning, do_pragma,
409 do_sccs): Read the rest of the line here.
410 (do_ident): Gobble rest of line, as cccp does.
411 (cpp_undef): New function.
412 (cpp_start_read): Call cpp_undef instead of do_undef.
414 1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
416 * cpphash.h (union hash_value): Remove `keydef' member, add a
417 `struct hashnode *aschain' member for #assert.
419 * cpplib.c (struct tokenlist_list, struct
420 assertion_hashnode): Delete structure definitions.
421 (assertion_install, assertion_lookup, delete_assertion,
422 check_assertion, compare_token_lists, reverse_token_list,
423 read_token_list, free_token_list): Delete functions.
424 (parse_assertion): New function.
425 (cpp_cleanup): Don't destroy the assertion_hashtable.
427 (do_assert): Gut and rewrite. #assert foo (bar) places
428 entries for `#foo' and `#foo(bar)' in the macro hash table,
429 type T_ASSERT. The value union's `aschain' member is used
430 to chain all answers for a given predicate together.
431 (do_unassert): Also rewritten. Take an un-asserted
432 answer off the chain from its predicate and call
433 delete_macro on the hashnode, or walk a predicate chain
434 calling delete_macro on all the entries.
435 (cpp_read_check_assertion): Simply call parse_assertion to
436 get the canonical assertion name, and look that up in the
439 * cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
442 * cpphash.c (install): Use bcopy instead of an explicit loop
443 to copy the macro name.
445 * cppexp.c (cpp_lex): Convert the result of
446 cpp_read_check_assertion to a `struct operation' directly;
447 don't go through parse_number.
449 Tue Dec 15 18:27:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
451 * loop.h (struct induction): Delete times_used member.
452 * loop.c (n_times_set): Rename to set_in_loop. Changed all users.
453 (n_times_used): Rename to n_times_set. Changed all users.
454 (scan_loop): Free reg_single_usage before strength reduction.
455 (record_giv, combine_givs): Remove handling of times_used member.
456 (combine_givs_used_once): Rename to:
457 (combine_givs_used_by_other) . Changed all callers.
459 Tue Dec 15 01:45:26 1998 Jason Merrill <jason@yorick.cygnus.com>
461 * dwarf2out.c (gen_struct_or_union_type_die): Check AGGREGATE_TYPE_P
462 instead of TREE_CODE_CLASS == 't'.
463 (gen_type_die): Likewise.
464 (scope_die_for): Ignore FUNCTION_TYPE "scopes".
466 Mon Dec 14 16:23:27 1998 Jim Wilson <wilson@cygnus.com>
468 * real.c (endian): Disable last change unless
469 HOST_BITS_PER_WIDE_INT is greater than 32.
471 Mon Dec 14 17:13:36 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
473 * output.h (force_data_section): New prototype.
474 * varasm.c (force_data_section): New function to force the
475 data section, regardless of what in_section thinks.
476 * dwarf2out.c (output_call_frame_info): Call force_data_section
477 since varasm may not realize we've changes sections.
479 Mon Dec 14 14:09:34 1998 Nick Clifton <nickc@cygnus.com>
481 * reload1.c (reload): Delete REG_RETVAL and REG_LIBCALL notes
482 after completeing reload.
484 * rtl.texi: Document that REG_RETVAL and REG_LIBCALL are
485 deleted after reload.
487 Mon Dec 14 01:39:28 1998 Jeffrey A Law (law@cygnus.com)
489 * rtl.h (multiple_sets): Fix prototype.
490 * rtlanal.c (multiple_sets): Fix return type.
492 Sun Dec 13 12:43:58 PST 1998 Jeff Law (law@cygnus.com)
494 * version.c: Bump for snapshot.
496 Sun Dec 13 01:05:22 PST 1998 Jeff Law (law@cygnus.com)
498 * version.c: Bump for snapshot.
500 1998-12-13 Manfred Hollstein <manfred@s-direktnet.de>
502 * protoize.c (fputs): Wrap extern declaration in #ifndef fputs.
504 Sun Dec 13 00:24:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
506 * rtl.h (recompute_reg_usage): Add second argument.
507 * flow.c (recompute_reg_usage): Likewise.
508 * toplev.c (rest_of_compilation): Supply second argument to
511 * reload1.c (compute_use_by_pseudos): Allow reg_renumber[regno] < 0
514 Sat Dec 12 23:39:10 1998 Jeffrey A Law (law@cygnus.com)
516 * m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcpu32.
517 (MULTILIB_MATCHES): -m68332 now uses mcpu32 libraries, not m68000.
518 (MULTILIB_EXCEPTIONS): Don't build 68881 libraries for m68000,
521 * i386/next.h (ASM_OUTPUT_ALIGN): Use 0x90 for fill character.
523 * rtlanal.c (multiple_sets): New function.
524 * rtl.h (multiple_sets): Declare it.
525 * local-alloc.c (wipe_dead_reg): Use it.
526 * global.c (global_conflicts): Likewise.
528 Sat Dec 12 22:13:02 1998 Mark Mitchell <mark@markmitchell.com>
530 * global.c (record_conflicts): Don't use an array of shorts to
531 store an array of ints.
532 (global_conflicts): Likewise.
534 Sat Dec 12 16:49:24 1998 Richard Henderson <rth@cygnus.com>
536 * alpha.c (alpha_expand_block_move): mode_for_size expects
537 bits, not bytes. Infer extra alignment from addressof.
539 1998-12-11 Michael Meissner <meissner@cygnus.com>
541 * rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Put small data in the
542 .sbss section, not .sdata.
544 1998-12-11 Manfred Hollstein <manfred@s-direktnet.de>
546 * cccp.c: Do not #include <sys/stat.h> here; this is already done
548 * collect2.c: Likewise.
549 * cpplib.h: Likewise.
552 * getpwd.c: Likewise.
553 * protoize.c: Likewise.
554 * toplev.c: Likewise.
556 * cpplib.h (HOST_WIDE_INT): Get definition from "machmode.h"
557 and don't try to define it here.
558 * Makefile.in (cppmain.o): Depend on machmode.h.
559 (cpplib.o): Likewise.
560 (cpperror.o): Likewise.
561 (cppexp.o): Likewise.
562 (cppfiles.o): Likewise.
563 (cpphash.o): Likewise.
564 (cppalloc.o): Likewise.
565 (fix-header.o): Likewise.
566 (scan-decls.o): Likewise.
568 Fri Dec 11 11:02:49 1998 Stan Cox <scox@cygnus.com>
570 * sh.c (print_operand): lookup interrupt_handler attribute instead
571 of relying on static variable.
572 * (calc_live_regs): Likewise.
573 * (sh_pragma_insert_attributes): Create interrupt_handler
574 attribute if a pragma was specified
575 * (sh_valid_machine_decl_attribute): Don't set static flag.
576 * sh.h (PRAGMA_INSERT_ATTRIBUTES): New.
578 Fri Dec 11 12:56:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
580 * reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
581 to determine if a register is live at a jump destination.
582 Everything is dead at a BARRIER.
584 Thu Dec 10 16:02:06 1998 Jim Wilson <wilson@cygnus.com>
586 * cse.c (simplify_unary_operation): Sign-extend constants when
587 they have the most significant bit set for the target.
588 * real.c (endian): Sign-extend 32 bit output values on a 64 bit
590 * m32r/m32r.c (m32r_expand_prologue): Store pretend_size in
591 HOST_WIDE_INT temporary before negating it.
592 * m32r/m32r.md (movsi_insn+1): Use ~0xffff instead of 0xffff0000.
594 Thu Dec 10 15:05:59 1998 Dave Brolley <brolley@cygnus.com>
596 * objc/objc-act.c (lang_init_options): Enclose cpplib related code in
599 Thu Dec 10 13:39:46 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
601 * collect2.h: New header file for prototypes.
603 * Makefile.in (collect2.o, tlink.o): Depend on collect2.h.
605 * collect2.c: Include collect2.h.
608 Wed Dec 9 23:55:11 1998 Jeffrey A Law (law@cygnus.com)
610 * flow.c: Update some comments.
612 Wed Dec 9 15:29:26 1998 Dave Brolley <brolley@cygnus.com>
614 * objc/objc-act.c (cpp_initialized): Removed.
615 (lang_init_options): Initialize cpplib.
616 (lang_decode_option): Move initialization of cpplib to
618 * c-lang.c: (parse_options,parse_in): Added.
619 (lang_init_options): Initialized cpplib here.
620 * c-decl.c (parse_options,cpp_initialized): Removed.
621 (c_decode_option): Move initialization of cpplib to
624 Wed Dec 9 19:36:57 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
626 * reload1.c (reload_combine, reload_combine_note_store):
627 Make STORE_RUID always valid.
628 (reload_combine): Check if BASE is clobbered too early.
630 Wed Dec 9 09:53:58 1998 Nick Clifton <nickc@cygnus.com>
632 * reload.c (find_reloads): Display the insn that cannot be
635 Wed Dec 9 12:15:26 1998 Dave Brolley <brolley@cygnus.com>
637 * cccp.c (create_definition): Fix end of bufer logic.
639 Wed Dec 9 10:15:45 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
641 * except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
642 pointer parameters changed to use the PARAMS() macro.
644 Wed Dec 9 09:12:40 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
646 * except.h (struct handler_info): Add handler_number field.
647 * except.c (gen_exception_label): EH labels no longer need to be
648 on the permanent obstack.
649 (get_new_handler): Set the label number field.
650 (output_exception_table_entry): Regenerate handler label reference
651 from the label number field.
652 (init_eh): Remove a blank line.
653 * integrate.c (get_label_from_map): Labels no longer need to be
654 on the permanent obstack.
656 Tue Dec 8 22:04:33 1998 Jim Wilson <wilson@cygnus.com>
658 * i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
659 only when OUTER_CODE is SET.
661 Tue Dec 8 22:47:15 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
663 * loop.c (strength_reduce): If scan_start points to the loop exit
664 test, be wary of subversive use of gotos inside expression statements.
665 Don't set maybe_multiple for a backward jump that does not
666 include the label under consideration into its range.
667 * unroll.c (biv_total_increment): Make use of maybe_multiple field.
669 Tue Dec 8 22:33:18 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
671 * explow.c (plus_constant_wide): Don't immediately return with
672 result of recursive call.
674 Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
676 * eh-common.h (struct eh_context): Add table_index for rethrows.
678 * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
679 (SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
680 processed when inlined or unrolled (ie duplicated in some way).
682 * rtl.c (reg_note_name): Add strings for new reg_note enums.
684 * expr.h (rethrow_libfunc): New library decl.
686 * optabs.c (rethrow_libfunc): Initialize.
688 * except.h (struct eh_entry): Add new field 'rethrow_label'.
689 (new_eh_region_entry): No longer exported from except.c.
690 (duplicate_handlers): Renamed to duplicate_eh_handlers and
692 (rethrow_symbol_map, rethrow_used): New exported functions.
693 (eh_region_from_symbol): New exported function.
695 * except.c (create_rethrow_ref): New function to create a single
696 SYMBOL_REF for a rethrow region.
697 (push_eh_entry): Initialize a rethrow ref.
698 (func_eh_entry): Add a rethrow_label field.
699 (new_eh_region_entry): Make static, and initialize the rethrow entry.
700 (duplicate_eh_handlers): Create a new region, and remap labels/symbols.
701 (eh_region_from_symbol): Find an EH region based on its rethrow symbol.
702 (rethrow_symbol_map): Given a label map, maps a rethrow symbol for
703 a region into an appropriate new symbol.
704 (rethrow_used): Indicate whether a rethrow symbol has been referenced.
705 (expand_eh_region_end): Don't issue jump around code for new-exceptions.
706 (end_catch_handler): Emit a barrier for new-exceptions since
707 control can never drop through the end of a catch block.
708 (expand_end_all_catch): new-exceptions never fall through a catch
710 (expand_rethrow): use __rethrow routine for new exceptions.
711 (output_exception_table_entry): Generate rethrow labels, if needed.
712 (output_exception_table): Generate start and end rethrow labels.
713 (init_eh): Create rethrow symbols for beginning and end of table.
714 (scan_region): Don't eliminate EH regions which are the targets of
717 * flow.c (make_edges): Add different edges for rethrow calls,
718 identified by having the REG_EH_RETHROW reg label.
719 (delete_unreachable_blocks): Don't delete regions markers which are
720 the target of a rethrow.
722 * integrate.c (save_for_inline_eh_labelmap): New callback routine to
723 allow save_for_inline_copying to call duplicate_eh_handlers.
724 (save_for_inline_copying): Call duplicate_eh_handlers instead of
725 exposing internal details of exception regions.
726 (copy_for_inline): Check if SYMBOL_REFs need adjustment.
727 (expand_inline_function_eh_labelmap): New callback routine to
728 allow expand_inline_function to call duplicate_eh_handlers.
729 (expand_inline_function): Call duplicate_eh_handlers instead of
730 exposing internal details of exception regions.
731 (copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
734 * libgcc2.c (find_exception_handler): Generalize to enable it to
735 pick up processing where it left off last time for a rethrow.
736 (__unwinding_cleanup): New function. debug hook which is called before
737 unwinding when __throw finds there is nothing but cleanups left.
738 (throw_helper): Common parts of __throw extracted out for reuse.
739 (__throw): Common parts moved to throw_helper.
740 (__rethrow): New function for performing rethrows.
742 Tue Dec 8 13:11:04 1998 Jeffrey A Law (law@cygnus.com)
744 * reload1.c (current_function_decl): Tweak declaration.
746 Tue Dec 8 10:23:52 1998 Richard Henderson <rth@cygnus.com>
748 * c-decl.c (flag_isoc9x): Default off.
749 (c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
750 * cccp.c (print_help, main): Likewise.
751 * gcc.c (default_compilers): Update for -std=gnu*.
753 Tue Dec 8 01:14:46 1998 Jeffrey A Law (law@cygnus.com)
755 * Makefile.in (DEMANGLE_H): Change location to shared demangle.h.
756 * demangle.h: Deleted.
758 * reload1.c (current_function_decl): Declare.
760 Tue Dec 8 11:58:51 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
762 * cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.
764 Tue Dec 8 09:28:36 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
766 * dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.
768 1998-12-08 Ulrich Drepper <drepper@cygnus.com>
770 * configure.in: Test for availability of putc_unlocked, fputc_unlocked,
772 * configure: Rebuilt.
773 * system.h: If the *_unlocked functions are available use them
774 instead of the locked counterparts by defining macros.
775 * config.in: Regenerated.
777 Tue Dec 8 00:34:05 1998 Mike Stump <mrs@wrs.com>
779 * i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
780 wrong and should only be used for dump related things, not
781 debugging information, instead main_input_filename should be used.
782 Also, reuse output_file_directive if possible.
783 * i386/aix386ng.h (ASM_FILE_START): Likewise.
784 * i386/isc.h (ASM_FILE_START): Likewise.
785 * i386/win-nt.h (ASM_FILE_START): Likewise.
786 * i386/sun386.h (ASM_FILE_START): Likewise.
788 Mon Dec 7 23:56:28 1998 Robert Lipe <robertl@dgii.com>
790 * configure.in (mips*-*-linux*): Handle big and little endian
792 * configure: Rebuilt.
794 Mon Dec 7 23:14:51 1998 Mike Stump <mrs@wrs.com>
796 * emit-rtl.c: Fix typo.
798 Mon Dec 7 23:07:38 1998 Nathan Sidwell <nathan@acm.org>
800 * reload1.c (eliminate_regs): Don't do anything, if we're not
803 Mon Dec 7 15:27:09 1998 DJ Delorie <dj@cygnus.com>
805 * mips/mips.h (ENCODE_SECTION_INFO): Handle TARGET_EMBEDDED_DATA.
807 * mips/mips.c (mips_select_section): Add comment.
809 Mon Dec 7 17:55:06 1998 Mike Stump <mrs@wrs.com>
811 * cccp.c (ignore_escape_flag): Add support for \ as `natural'
812 characters in file names in #line to be consistent with #include
813 handling. We support escape prcessing in the # 1 "..." version of
814 the command. See also support in cp/lex.c.
815 (handle_directive): Likewise.
818 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
820 * cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
821 so it'll work on non-ASCII platforms. Always consider $ an
822 identifier character. Take no arguments.
823 (cpp_reader_init): Call initialize_char_syntax with no
825 (cpp_start_read): Don't call initialize_char_syntax again.
826 Clear is_idchar['$'] and is_idstart['$'] if not
827 opts->dollars_in_ident.
829 * cpplib.h (struct cpp_reader): Replace void *data element by
830 cpp_options *opts. Rearrange elements to make gdb printout
831 less annoying (put buffer stack at end).
832 (CPP_OPTIONS): Get rid of now-unnecessary cast.
834 * cppmain.c: s/data/opts/ when initializing cpp_reader
836 * c-decl.c: Likewise.
837 * objc/objc-act.c: Likewise.
838 * fix-header.c: Likewise.
840 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
842 * cpplib.h (struct cpp_buffer): Replace dir and dlen members
843 with a struct file_name_list pointer.
844 (struct cpp_reader): Add pointer to chain of `actual
845 directory' include searchpath entries.
846 (struct file_name_list): Add *alloc pointer for the sake of
847 the actual-directory chain.
849 Move definition of HOST_WIDE_INT here.
850 (cpp_parse_escape): Change prototype to match changes in
853 * cppfiles.c (actual_directory): New function.
854 (finclude): Use it to initialize the buffer's actual_dir
856 (find_include_file): We don't need to fix up max_include_len
859 * cpplib.c (do_include): Don't allocate a file_name_list on
860 the fly for current directory "" includes, use the one that's
861 been preallocated in pfile->buffer->actual_dir. Hoist out
862 duplicate code from the search_start selection logic.
863 (cpp_reader_init): Initialize pfile->actual_dirs.
865 Remove definition of HOST_WIDE_INT. Change calls
866 to cpp_parse_escape to match changes in cppexp.c (note
867 hardcoded MASK, which is safe since this is the source
870 * cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
871 to handle wide character constants in #if directives. The
872 function now returns a HOST_WIDE_INT, and takes a third
873 argument which is a binary mask for all legal values (0x00ff
874 for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.) Define
875 MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK. Change callers of
876 cpp_parse_escape to match. [Fixes c-torture/execute/widechar-1.c]
878 Mon Dec 7 15:38:25 1998 Dave Brolley <brolley@cygnus.com>
880 * gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.
882 Mon Dec 7 15:38:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
884 * c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
885 * cppalloc.c: Move function `xcalloc' from cpplib.c to here.
886 * cpplib.c: Move function `xcalloc' from here to cppalloc.c.
888 Mon Dec 7 11:30:49 1998 Nick Clifton <nickc@cygnus.com>
890 * final.c (output_asm_name): Use tabs to seperate comments from
893 Include instruction lengths (if defined) in output.
895 Mon Dec 7 10:53:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
897 * loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
898 in the loop_info structure.
900 Mon Dec 7 11:04:40 1998 Catherine Moore <clm@cygnus.com>
902 * configure.in: (arm*-*-ecos-elf): New target.
903 * configure: Regenerated.
904 * config/arm/elf.h (ASM_WEAKEN_LABEL): Define.
905 * config/arm/ecos-elf.h: New file.
906 * config/arm/unknown-elf.h (TARGET_VERSION): Check
909 Mon Dec 7 16:15:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
911 * sh.c (output_far_jump): Emit braf only for TARGET_SH2.
913 Sun Dec 6 04:19:45 PST 1998 Jeff Law (law@cygnus.com)
915 * version.c: Bump for snapshot.
917 Sun Dec 6 05:16:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
919 * loop.c (check_dbra_loop): New argument loop_info. Update fields
922 Sun Dec 6 03:40:13 PST 1998 Jeff Law (law@cygnus.com)
924 * version.c: Bump for snapshot.
926 Sun Dec 6 07:49:29 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
928 * gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
929 compressed reports are ok and preferred over URLs
931 Sun Dec 6 07:45:33 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
933 * invoke.texi (Warning Options): Soften the tone of -pedantic
935 Sun Dec 6 00:20:44 1998 H.J. Lu (hjl@gnu.org)
937 * print-rtl.c (print_rtx): Add prototype.
939 * unroll.c (iteration_info): Make it static.
941 Sun Dec 6 01:19:46 1998 Richard Henderson <rth@cygnus.com>
943 * alias.c (memrefs_conflict_p): A second ANDed address
944 disables the aligned address optimization.
946 Sat Dec 5 18:48:25 1998 Richard Henderson <rth@cygnus.com>
948 * alpha.c (alpha_emit_set_const_1): Fix parenthesis error
951 Sat Dec 5 15:14:52 1998 Jason Merrill <jason@yorick.cygnus.com>
953 * i960.h (BOOL_TYPE_SIZE): Define.
955 Sun Dec 6 00:28:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
957 * config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
958 from old valid_parallel_operands_4.
959 (valid_parallel_operands_4): Check that operands for 4 operand
960 parallel insns are valid, excluding load/store insns.
961 * config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
962 * config/c4x/c4x.md (*movqf_parallel, *movqi_parallel): Use
963 valid_parallel_load_store instead of valid_parallel_operands_4.
964 (*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber,
965 *negqf2_movqf_clobber, *absqi2_movqi_clobber,
966 *fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
967 *notqi_movqi_clobber): Use valid_parallel_operands_4.
968 (*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
969 *ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
970 *subqi3_movqi_clobber): Use valid_parallel_operands_5.
972 Sat Dec 5 23:52:01 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
974 * config/c4x/c4x.c (iteration_info): Delete extern.
976 Fri Dec 4 20:15:57 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
978 * tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.
980 * final.c (cleanup_subreg_operands): Delete some unused code.
982 * recog.h (MAX_RECOG_ALTERNATIVES): New macro.
983 (struct insn_alternative): New structure definition.
984 (recog_op_alt): Declare variable.
985 (preprocess_constraints): Declare function.
986 * recog.c (recog_op_alt): New variable.
987 (extract_insn): Verify number of alternatives is in range.
988 (preprocess_constraints): New function.
989 * reg-stack.c: Include recog.h.
990 (constrain_asm_operands): Delete.
991 (get_asm_operand_lengths): Delete.
992 (get_asm_operand_n_inputs): New function.
993 (record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
994 N_OUTPUTS args. All callers changed.
995 Compute number of inputs and outputs here by calling
996 get_asm_operand_n_inputs.
997 Instead of constrain_asm_operands, call extract_insn,
998 constrain_operands and preprocess_constaints. Use information
999 computed by these functions throughout.
1000 (record_reg_life): Delete code that is unused due to changes in
1001 record_asm_reg_life.
1002 (subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
1003 N_INPUTS and N_OUTPUTS args. All callers changed.
1004 Similar changes as in record_asm_reg_life.
1005 (subst_stack_regs): Move n_operands declaration into the if statement
1007 Delete code that is unused due to changes in subst_asm_stack_regs.
1008 * stmt.c (expand_asm_operands): Verify number of alternatives is in
1010 * Makefile.in (reg-stack.o): Depend on recog.h.
1012 Fri Dec 4 02:23:24 1998 Jeffrey A Law (law@cygnus.com)
1014 * except.c (set_exception_version_code): Argument is an "int".
1016 Fri Dec 4 01:29:28 1998 Jeffrey A Law (law@cygnus.com)
1018 * configure.in (hppa2*-*-*): Handle like hppa1.1-*-* for now.
1019 * configure: Rebuilt.
1021 Fri Dec 4 01:29:28 1998 Robert Lipe <robertl@dgii.com>
1023 * configure.in (mipsel-*-linux*): New target.
1024 * mips/linux.h: New file, based on other Linux targets.
1026 Thu Dec 3 11:19:50 1998 Mike Stump <mrs@wrs.com>
1028 * gthr-vxworks.h (__ehdtor): Fix memory leak. The delete hook
1029 runs in the context of the deleter, not the deletee, so we must
1030 use taskVarGet to find the correct memory to free.
1031 (__gthread_key_create): Initialize the task
1032 variable subsystem so that the task variable is still active when
1033 the delete hook is run.
1035 1998-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
1037 * pdp11.h: Use optimize_size for space optimizations.
1038 * pdp11.c: Likewise.
1039 * pdp11.md: Likewise.
1041 * pdp11.h (TARGET_40_PLUS): Fix typo.
1043 Thu Dec 3 11:48:32 1998 Jeffrey A Law (law@cygnus.com)
1045 * local-alloc.c (block_alloc): Slightly retune heuristic to widen
1048 Thu Dec 3 22:30:18 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1050 * alias.c (addr_side_effect_eval): New function.
1051 (memrefs_conflict_p): Use it.
1052 * rtl.h (addr_side_effect_eval): Prototype it.
1054 1998-12-02 Joseph S. Myers <jsm28@cam.ac.uk>
1056 * pdp11.md (extendsfdf2): Fix mode mismatch in SET.
1058 Wed Dec 2 11:23:07 1998 Jim Wilson <wilson@cygnus.com>
1060 * reload.c (find_reloads): When force const to memory, put result
1061 in substed_operand not *recog_operand_loc.
1063 1998-12-02 Ulrich Drepper <drepper@cygnus.com>
1065 * c-lex.c: Fix indentation from last patch.
1066 Remove trailing whitespace.
1069 Wed Dec 2 10:11:12 1998 Jeffrey A Law (law@cygnus.com)
1071 * flow.c (delete_block): Call set_last_insn after we have reset
1072 NEXT_INSN (kept_tail).
1074 Wed Dec 2 00:47:31 1998 Jeffrey A Law (law@cygnus.com)
1076 * mips.md (trap_if): Use "$0" for the value zero.
1078 Tue Dec 1 20:49:49 1998 Ulrich Drepper <drepper@cygnus.com>
1079 Stephen L Moshier <moshier@world.std.com>
1080 Richard Henderson <rth@cygnus.com>
1082 * c-common.c (declare_function_name): Declare predefinied variable
1085 * c-decl.c (flag_isoc9x): Set to 1 by default.
1086 (c_decode_option): Handle -std= option. Remove -flang-isoc9x.
1087 (grokdeclarator): Always emit warning about implicit int for ISO C 9x.
1089 * c-parse.in: Allow constructors in ISO C 9x.
1090 Rewrite designator list handling.
1091 Allow [*] parameters.
1092 Don't warn about comma at end of enum definition for ISO C 9x.
1094 * cccp.c (c9x): New variable.
1095 (rest_extension): New variable.
1096 (print_help): Document new -std= option.
1097 (main): Recognize -std= option. Set c9x appropriately.
1098 (create_definition): Recognize ISO C 9x vararg macros.
1100 * gcc.c (default_compilers): Adjust specs for -std options.
1101 (option_map): Add --std.
1102 (display_help): Document -std.
1104 * toplev.c (documented_lang_options): Add -std and remove
1107 * c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
1108 or REAL_VALUE_HTOF based on base of the constants.
1109 * fold-const.c (real_hex_to_f): New function. Replacement function
1110 for hex FP conversion if REAL_ARITHMETIC is not defined.
1111 * real.c (asctoeg): Add handling of hex FP constants.
1112 * real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
1115 Tue Dec 1 16:45:49 1998 Stan Cox <scox@cygnus.com>
1117 * mips.md (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
1118 -mcheck-range-division/-mcheck-zero-division checking. Avoid as macro
1119 expansion. Use hi/lo as destination register.
1121 (divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
1122 umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
1123 Avoid as macro expansion. Use hi/lo as destination register.
1125 * mips.h (MASK_CHECK_RANGE_DIV): New.
1126 (MASK_NO_CHECK_ZERO_DIV): New.
1127 (ELIMINABLE_REGS): Added GP_REG_FIRST + 31.
1128 (CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): Allow for getting
1129 return address for leaf functions out of r31 to support
1130 builtin_return_address.
1132 Tue Dec 1 15:03:30 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1134 * jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
1135 NEXT_INSN(x) to check insn x.
1137 Tue Dec 1 15:20:44 1998 Jeffrey A Law (law@cygnus.com)
1139 * flow.c (delete_block): Call set_last_insn if we end up deleting the
1140 last insn in the rtl chain.
1142 * reload1.c (reload): Do not set reload_completed or split insns
1144 * toplev.c (rest_of_compilation): Set reload_completed after
1145 reload returns. Split insns after reload_cse has run.
1147 Tue Dec 1 11:55:04 1998 Richard Henderson <rth@cygnus.com>
1149 * final.c (final_scan_insn): Abort if block_depth falls below 0.
1151 Tue Dec 1 10:23:16 1998 Nick Clifton <nickc@cygnus.com>
1153 * config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.
1155 Tue Dec 1 10:22:18 1998 Nick Clifton <nickc@cygnus.com>
1157 * config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
1158 use of user-label_prefix.
1160 Tue Dec 1 17:58:26 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1162 * reload1.c (emit_reload_insns): Clear spill_reg_store
1163 when doing a new non-inherited reload from the same pseudo.
1165 * local-alloc.c (function_invariant_p): New function.
1166 (update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
1167 to decide if an equivalence should be recorded.
1168 * reload1.c (num_eliminable_invariants): New static variable.
1169 (reload): Set it. Use function_invariant_p instead of CONSTANT_P
1170 to decide if an equivalence should be recorded.
1172 (calculate_needs_all_insns): Skip insns that only set an equivalence.
1173 Take num_eliminable_invariants into account when deciding
1174 if register elimination should be done.
1175 (reload_as_needed): Take num_eliminable_invariants into account
1176 when deciding if register elimination should be done.
1177 (eliminate_regs): Handle non-constant reg_equiv_constant.
1178 * rtl.h (function_invariant_p): Declare.
1180 Mon Nov 30 02:00:08 PST 1998 Jeff Law (law@cygnus.com)
1182 * version.c: Bump for snapshot.
1184 Mon Nov 30 00:42:59 PST 1998 Jeff Law (law@cygnus.com)
1186 * version.c: Bump for snapshot.
1188 Sun Nov 29 22:59:40 1998 Jason Merrill <jason@yorick.cygnus.com>
1190 * except.c (add_new_handler): Complain about additional handlers
1191 after one that catches everything.
1193 Sat Nov 28 10:56:32 1998 Jeffrey A Law (law@cygnus.com)
1195 * configure.in (alpha*-*-netbsd): Fix typo.
1196 * configure: Rebuilt.
1198 Fri Nov 27 12:28:56 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1200 * system.h: Include libiberty.h.
1202 * c-aux-info.c: Remove prototypes for concat/concat3. Change
1203 function `concat' from fixed parameters to variable parameters,
1204 as is done in libiberty. All callers of concat/concat3
1205 changed to use the new `concat' with variable args.
1207 * cccp.c: Remove things made redundant by libiberty.h and/or
1208 conform to libiberty standards.
1210 * collect2.c: Likewise.
1211 * config/1750a/1750a.h: Likewise.
1212 * cppalloc.c: Likewise.
1213 * cppexp.c: Likewise.
1214 * cppfiles.c: Likewise.
1215 * cpphash.c: Likewise.
1216 * cpplib.c: Likewise.
1217 * dyn-string.c: Likewise.
1218 * fix-header.c: Likewise.
1221 * genattr.c: Likewise.
1222 * genattrtab.c: Likewise.
1223 * gencheck.c: Likewise.
1224 * gencodes.c: Likewise.
1225 * genconfig.c: Likewise.
1226 * genemit.c: Likewise.
1227 * genextract.c: Likewise.
1228 * genflags.c: Likewise.
1229 * gengenrtl.c: Likewise.
1230 * genopinit.c: Likewise.
1231 * genoutput.c: Likewise.
1232 * genpeep.c: Likewise.
1233 * genrecog.c: Likewise.
1234 * getpwd.c: Likewise.
1235 * halfpic.c: Likewise.
1237 * mips-tdump.c: Likewise. Wrap malloc/realloc/calloc prototypes
1238 in NEED_DECLARATION_* macros.
1240 * mips-tfile.c: Remove things made redundant by libiberty.h and/or
1241 conform to libiberty standards.
1242 (fatal): Fix const-ification of variable `format' in
1243 !ANSI_PROTOTYPES case.
1245 * prefix.c: Remove things made redundant by libiberty.h and/or
1246 conform to libiberty standards.
1248 * print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
1249 conflicting with function `spaces' from libiberty.
1251 * profile.c: Remove things made redundant by libiberty.h and/or
1252 conform to libiberty standards.
1253 * protoize.c: Likewise.
1256 * tlink.c: Likewise.
1257 * toplev.c: Likewise.
1258 * toplev.h: Likewise.
1261 Thu Nov 26 08:38:06 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1263 * cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.
1265 Thu Nov 26 23:45:37 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1267 * README.C4X: Updated URLs.
1268 * config/c4x/c4x.c (c4x_address_conflict): Fix typo.
1269 (valid_parallel_operands_5): Remove unused variable.
1271 Thu Nov 26 23:40:03 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1273 * config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.
1275 1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
1277 * Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
1278 which can be configured.
1279 (LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
1280 (Makefile): Pass actual LANGUAGES through the environment when
1282 (cstamp-h): Likewise.
1283 (config.status): Likewise.
1285 * configure.in (enable_languages): Add new configuration parameter
1286 "--enable-languages=lang1,lang2,...".
1287 (${srcdir}/*/config-lang.in): Change handling to configure only
1288 those directories, that the user might have enabled; default to
1289 "all" existing languages.
1290 * configure: Regenerate.
1292 Thu Nov 26 00:19:19 1998 Richard Henderson <rth@cygnus.com>
1294 * rtlanal.c (regs_set_between_p): New function.
1295 * rtl.h (regs_set_between_p): Prototype it.
1296 * jump.c (jump_optimize): Use it instead of modified_between_p
1297 in the Sep 2 change.
1299 Wed Nov 25 23:32:02 1998 Ian Dall <Ian.Dall@dsto.defence.gov.au>
1300 Matthias Pfaller <leo@dachau.marco.de>
1302 * invoke.texi (Option Summary, NS32K Options): add description
1303 of NS32K specific options.
1305 * ns32k.md (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
1306 fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
1307 fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
1308 negdf2, absdf2): Use l instead of f since the double class and
1309 float class are no longer the same.
1310 (cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
1311 divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
1312 ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
1313 use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
1315 (cmpsi, cmphi, cmpqi): use general_operand instead of
1316 non_immediate_operand. Removes erroneous assumption that can't
1318 (movsf, movsi, movhi, movqi,...): New register numbering scheme.
1319 (movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
1321 (movstrsi, movstrsi1, movstrsi2): completely new block move
1323 (...): Patterns to exploit multiply-add instructions.
1324 (udivmodsi4, udivmodsi_internal4, udivmodhi4,
1325 udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): new
1326 patterns to exploit extended divide insns.
1327 (udivsi3, udivhi3, udivqi3): remove since superceded by udivmodsi
1330 * ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
1331 float return values as well as simple scalar floats.
1332 (TARGET_32381, TARGET_MULT_ADD, TARGET_SWITCHES):
1333 support new flag to denote 32381 fpu.
1334 (OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
1335 (CONDITIONAL_REGISTER_USAGE): disable extra 32381 registers if not
1337 (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS,
1338 REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES, OUTPUT_REGISTER_NAMES,
1339 REG_ALLOC_ORDER, DBX_REGISTER_NUMBER, R0_REGNUM, F0_REGNUM,
1340 L1_REGNUM, STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
1341 LONG_FP_REGS_P, ARG_POINTER_REGNUM, reg_class, REG_CLASS_NAMES,
1342 REG_CLASS_CONTENTS, SUBSET_P,REGNO_REG_CLASS,
1343 REG_CLASS_FROM_LETTER, FUNCTION_PROLOGUE, FUNCTION_EPILOGUE,
1344 REGNO_OK_FOR_INDEX_P, FP_REG_P, REG_OK_FOR_INDEX_P,
1345 REG_OK_FOR_BASE_P, MEM_REG): new register scheme to include 32381
1346 fpu registers and special register classes for new 32381
1347 instructions dotf and polyf.
1348 (MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
1350 (INCOMING_RETURN_ADDR_RTX, RETURN_ADDR_RTX,
1351 INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
1353 (SMALL_REGISTER_CLASSES): Make dependant on -mmult-add option.
1354 (MOVE_RATIO): Set to zero because of smart movstrsi implimentation.
1355 (REGISTER_MOVE_COST): move code to register_move_cost function for
1356 ease of coding and debugging.
1357 (CLASS_LIKELY_SPILLED_P): Under new register scheme class
1358 LONG_FLOAT_REGO is likely spilled but not caught by default
1360 (CONSTANT_ADDRESS_P, CONSTANT_ADDRESS_NO_LABEL_P): use macro
1361 instead of hard coded numbers in range check.
1362 (ASM_OUTPUT_LABELREF_AS_INT): delete since unused.
1363 (...): Add prototypes for functions in ns32k.c but disable because
1364 of problems when ns32k.h is included in machine independant files.
1366 * ns32k.c: include "system.h", "tree.h", "expr.h", "flags.h".
1367 (ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
1368 hard_regno_mode_ok, secondary_reload_class,
1369 print_operand, print_operand_address): new register scheme to
1370 include 32381 fpu registers and special register classes for new
1371 32381 instructions dotf and polyf.
1372 (gen_indexed_expr): Make static to keep namespace clean.
1373 (check_reg): remove since never called.
1374 (move_tail, expand_block_move): helper functions for "movstrsi"
1376 (register_move_cost): Helper function for REGISTER_MOVE_COST macro.
1377 Increase cost of moves which go via memory.
1378 * netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
1379 (CPP_PREDEFINES): nolonger predefine "unix".
1381 * ns32k.md (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
1382 Remove erroneous %$. print_operand() can work out from the rtx is
1383 an immediate prefix is required.
1385 * ns32k.h (RETURN_POPS_ARGS, VALID_MACHINE_DECL_ATTRIBUTE,
1386 VALID_MACHINE_TYPE_ATTRIBUTE, COMP_TYPE_ATTRIBUTES,
1387 SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
1389 (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST): Correct handling of
1392 * ns32k.c (symbolic_reference_mentioned_p, print_operand):
1393 Correct handling of pic operands.
1394 (ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
1395 ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
1396 -mrtd calling convention.
1398 Wed Nov 25 23:42:20 1998 Tom Tromey <tromey@cygnus.com>
1400 * gcc.c (option_map): Recognize --output-class-directory.
1402 Thu Nov 26 18:26:21 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1404 * loop.h (precondition_loop_p): Added new mode argument.
1405 * unroll.c (precondition_loop_p): Likewise.
1406 (approx_final_value): Function deleted and subsumed
1407 into loop_iterations.
1408 (loop_find_equiv_value): New function.
1409 (loop_iterations): Use loop_find_equiv_value to find increments
1410 too large to be immediate constants. Also use it to find terms
1411 common to initial and final iteration values that can be removed.
1413 Thu Nov 26 18:05:04 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1415 * loop.h (struct loop_info): Define new structure.
1416 (precondition_loop_p): Added prototype.
1417 (unroll_loop): Added new argument loop_info to prototype.
1418 (final_biv_value, final_giv_value): Added new argument n_iterations
1420 * loop.c (strength_reduce): Declare new structure loop_iteration_info
1421 and new pointer loop_info.
1422 (loop_n_iterations): Replace global variable by element in
1423 loop_info structure.
1424 (check_final_value): New argument n_iterations.
1425 (insert_bct): New argument loop_info.
1426 (loop_unroll_factor): Replace global array by element in
1427 loop_info structure.
1428 (loop_optimize): Remove code to allocate and initialise
1429 loop_unroll_factor_array.
1430 * unroll.c (precondition_loop_p): No longer static since
1431 used by branch on count optimization.
1432 (precondition_loop_p, unroll_loop): New argument loop_info.
1433 (final_biv_value, final_giv_value, find_splittable_regs): New
1434 argument n_iterations.
1435 (loop_iteration_var, loop_initial_value, loop_increment,
1436 loop_final_value, loop_comparison_code, loop_unroll_factor):
1437 Replaced global variables by loop_info structure.
1438 (loop_unroll_factor): Replace global array by element in
1439 loop_info structure.
1441 Thu Nov 26 17:49:29 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1443 * loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
1446 * unroll.c (precondition_loop_p): Return loop_initial_value
1447 for initial_value instead of loop_iteration_var.
1449 Thu Nov 26 17:15:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1451 * config/c4x/c4x.md: Fix minor formatting problems. Update docs.
1452 (*b, *b_rev, *b_noov, *b_noov_rev, *db,
1453 decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
1454 to output the instruction sequences.
1456 (rptb_top): Provide alternatives to use any register or memory
1458 (rptb_end): Emit use of operands rather than assigning them
1459 explicitly to the RS and RE registers.
1461 Thu Nov 26 16:37:59 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1463 * config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
1464 c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
1465 c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
1466 c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after,
1467 c4x_merge_notes, c4x_parallel_process,
1468 c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
1469 c4x_combine_parallel): Delete.
1471 Thu Nov 26 15:16:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1473 * config/c4x/c4x.c: (c4x_override_options): For compatibility
1474 with old target options clear flag_branch_on_count_reg if
1475 -mno-rptb specified and set flag_argument_alias is -mno-aliases
1477 (c4x_output_cbranch): Handle a sequence of insns rather than a
1479 (c4x_rptb_insert): Do not emit a RPTB insn if the RC register
1480 has not been allocated as the loop counter.
1481 (c4x_address_conflict): Do not allow two volatile memory references.
1482 (valid_parallel_operands_4, valid_parallel_operands_5,
1483 valid_parallel_operands_6): Reject pattern if the register destination
1484 of the first set is used as part of an address in the second set.
1486 Thu Nov 26 14:56:32 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1488 * config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
1489 (TARGET_SMALL_REG_CLASS): Set to 0 so that SMALL_REGISTER_CLASSES
1490 is no longer enabled if PARALLEL_MPY_FLAG set.
1491 (HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
1492 (REG_CLASS_CONTENTS): Add braces around initializers.
1493 (HAVE_MULTIPLE_PACK): Define.
1494 (ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with
1495 REAL_VALUE_TO_DECIMAL.
1496 (ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with
1497 REAL_VALUE_TO_DECIMAL.
1498 (ar0_reg_operand): Add prototype.
1499 (ar0_mem_operand): Likewise.
1500 (ar1_reg_operand): Likewise.
1501 (ar1_mem_operand): Likewise.
1502 (ar2_reg_operand): Likewise.
1503 (ar2_mem_operand): Likewise.
1504 (ar3_reg_operand): Likewise.
1505 (ar3_mem_operand): Likewise.
1506 (ar4_reg_operand): Likewise.
1507 (ar4_mem_operand): Likewise.
1508 (ar5_reg_operand): Likewise.
1509 (ar5_mem_operand): Likewise.
1510 (ar6_reg_operand): Likewise.
1511 (ar6_mem_operand): Likewise.
1512 (ar7_reg_operand): Likewise.
1513 (ar7_mem_operand): Likewise.
1514 (ir0_reg_operand): Likewise.
1515 (ir0_mem_operand): Likewise.
1516 (ir1_reg_operand): Likewise.
1517 (ir1_mem_operand): Likewise.
1518 (group1_reg_operand): Likewise.
1519 (group1_mem_operand): Likewise.
1520 (ir1_reg_operand): Likewise.
1521 (arx_reg_operand): Likewise.
1522 (not_rc_reg): Likewise.
1523 (not_modify_reg): Likewise.
1524 (c4x_group1_reg_operand): Remove prototype.
1525 (c4x_group1_mem_operand): Likewise.
1526 (c4x_arx_reg_operand): Likewise.
1528 Wed Nov 25 19:02:55 1998 (Stephen L Moshier) <moshier@world.std.com>
1530 * emit-rtl.c (gen_lowpart_common): Remove earlier change.
1531 * real.c (make_nan): Make SIGN arg actually specify the sign bit.
1533 Thu Nov 26 14:12:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1535 * config/c4x/c4x.md (addqi3): Emit addqi3_noclobber pattern
1538 Wed Nov 25 22:05:28 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1540 * config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
1541 unless FMOVD_WORKS is defined.
1543 Wed Nov 25 20:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1545 * regclass.c (init_reg_sets): Move code that calculates tables
1546 dependent on reg_class_contents from here...
1547 (init_reg_sets_1): To here.
1549 Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1551 * cpplib.h: Delete struct import_file. Add ihash element to
1552 struct cpp_buffer. Delete dont_repeat_files and
1553 import_hash_table elements from cpp_reader; change
1554 all_include_files to a hash table. Delete all foobar_include
1555 / last_foobar_include elements from struct cpp_options; put
1556 back four such: quote_include, bracket_include,
1557 system_include, after_include. Redo struct file_name_list
1558 completely. Add new structure type include_hash. Add
1559 prototypes for merge_include_chains and include_hash. Change
1560 prototypes for finclude, find_include_file, and
1561 append_include_chain to match changes below.
1563 * cppfiles.c (simplify_pathname, include_hash,
1564 remap_filename, merge_include_chains): New functions.
1565 (add_import, lookup_import, open_include_file): Removed.
1566 (INO_T_EQ): Define this (copied from cccp.c).
1567 (hack_vms_include_specification): Remove all calls and #if 0
1568 out the definition. It was being called incorrectly and at
1569 the wrong times. Until a VMSie can look at this, it's better
1570 to not pretend to support it.
1571 (append_include_chain): Change calling convention; now takes
1572 only one directory at a time, and sets up the data structure
1574 (redundant_include_p): Rewritten - this is now used for all
1575 include redundancy, whether by #ifndef, #import, or #pragma
1576 once. Looks up things in the include hash table.
1577 (file_cleanup): Decrement pfile->system_include_depth here if
1579 (find_include_file): Calling convention changed; now passes
1580 around a struct include_hash instead of 3 separate parameters.
1581 Guts ripped out and replaced with new include_hash mechanism.
1582 (finclude): Calling convention changed as for
1583 find_include_file. Error exits pulled out-of-line. Reformat.
1584 (safe_read): Return a long, not an int.
1585 (deps_output): Don't recurse.
1587 * cpplib.c (is_system_include): Deleted.
1588 (path_include): Fix up call to append_include_chain.
1589 (do_include): Fix up calls to find_include_file and finclude.
1590 Clean up dependency output a bit. Shorten obnoxiously lengthy
1591 #import warning message. Don't decrement
1592 pfile->system_include_depth here.
1593 (do_pragma): Understand the include_hash structure. Reformat.
1594 (do_endif): Correct handling of control macros. Understand
1596 (cpp_start_read): Fix up calls to finclude. Call
1597 merge_include_chains.
1598 (cpp_handle_option): Fix up calls to append_include_chain.
1599 Understand the four partial include chains.
1600 (cpp_finish): Add debugging code (#if 0-ed out) for the
1602 (cpp_cleanup): Free the include_hash, not the import hash and
1603 the all_include and dont_repeat lists which no longer exist.
1605 Wed Nov 25 11:26:19 1998 Jeffrey A Law (law@cygnus.com)
1607 * toplev.c (no_new_pseudos): Define.
1608 (rest_of_compilation): Set no_new_pseudos as needed.
1609 * emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
1610 if no_new_pseudos is set.
1611 * rtl.h (no_new_pseudos): Declare it.
1612 * reload1.c (reload): Update comments.
1613 * md.texi: Corresponding changes.
1615 Wed Nov 25 11:26:17 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1617 * reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
1618 (choose_reload_regs): Rename it here as well. When computing it,
1619 also merge in used hardregs.
1621 1998-11-25 07:51 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
1623 * gcc.c: Split out Objective-C specs to...
1624 * objc/lang-specs.h: here. (New file.) Make the specs cpplib
1627 * c-lex.c (init_parse): Always initialize the filename global.
1628 * objc/objc-act.c (lang_init): Always call check_newline at
1631 Wed Nov 25 00:48:29 1998 Graham <grahams@rcp.co.uk>
1633 * reload1.c (reload): Remove unused variable.
1634 (reload_reg_free_for_value_p): Add missing parameter definition.
1636 * jump.c (jump_optimize): Remove unused variable.
1638 Wed Nov 25 00:07:11 1998 Jeffrey A Law (law@cygnus.com)
1640 * Makefile.in (graph.o): Depend on $(RTL_H), not rtl.h.
1642 * cse.c (fold_rtx): Make autoincrement addressing mode tests be
1644 * expr.c (move_by_pieces): Similarly.
1645 (move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
1646 * flow.c (find_auto_inc): Similarly.
1647 (try_pre_increment): Similarly.
1648 * loop.c (strength_reduce): Similarly.
1649 * regclass.c (auto_inc_dec_reg_p): Similarly.
1650 * regmove.c (try_auto_increment): Similarly.
1651 (fixup_match_1): Similarly.
1652 * rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
1653 (HAVE_PRE_DECREMENT): Similarly.
1654 (HAVE_POST_INCREMENT, HAVE_POST_DECREMENT): Similarly.
1655 * Corresponding changes to all target header files.
1656 * tm.texi: Update docs for autoinc addressing modes.
1658 Tue Nov 24 20:24:59 1998 Jim Wilson <wilson@cygnus.com>
1660 * configure.in (m68020-*-elf*, m68k-*-elf*): New targets.
1661 * configure: Rebuild.
1662 * config/elfos.h: New file.
1663 * config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
1664 config/m68k/t-m68kelf: New file.
1666 Tue Nov 24 13:40:06 1998 Jeffrey A Law (law@cygnus.com)
1668 * Makefile.in (HOST_AR): Define.
1669 (HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Similarly.
1670 (libcpp.a): Use the host tools explicitly.
1671 (STAGESTUFF): Add libcpp.a.
1673 Tue Nov 24 09:33:49 1998 Nick Clifton <nickc@cygnus.com>
1675 * config/m32r/m32r.md (movstrsi_internal): Describe changes made
1676 to source and destination registers.
1678 Mon Nov 23 20:28:02 1998 Mike Stump <mrs@wrs.com>
1680 * libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
1681 The strategy we now use is to pre allocate the top_elt along
1682 with the EH context so that each thread has its own top_elt.
1683 This is necessary as the dynmanic cleanup chain is used on the
1684 top element of the stack and each thread MUST have its own.
1685 (eh_context_static): Likewise.
1686 (new_eh_context): Likewise.
1687 (__sjthrow): Likewise.
1689 Mon Nov 23 20:25:03 1998 Jason Merrill <jason@yorick.cygnus.com>
1691 * i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
1692 * i386.md (prologue_get_pc): Remove unused variable.
1694 Mon Nov 23 17:05:40 1998 Geoffrey Noer <noer@cygnus.com>
1696 * i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.
1698 Mon Nov 23 16:40:00 1998 Ulrich Drepper <drepper@cygnus.com>
1700 * Makefile.in (OBJS): Add graph.o
1701 (graph.o): New dependency list.
1702 * flags.h: Declare dump_for_graph and define graph_dump_types type.
1703 * print-rtl.c (dump_for_graph): Define new variable.
1704 (print_rtx): Rewrite to allow use in graph dumping functions.
1705 * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
1706 finish_graph_dump_file.
1707 Define graph_dump_format.
1708 (compile_file): If graph dumping is enabled also clear these files.
1709 Finish graph dump files.
1710 (rest_of_compilation): Also dump graph information if enabled.
1711 (main): Recognize -dv to enabled VCG based graph dumping.
1712 * graph.c: New file. Graph dumping functions.
1714 Mon Nov 23 16:39:04 1998 Richard Henderson <rth@cygnus.com>
1716 * configure.in: Look for <sys/stat.h>.
1717 * system.h: Include it before substitute S_ISREG definitions.
1719 Mon Nov 23 17:40:37 1998 Gavin Romig-Koch <gavin@cygnus.com>
1721 * config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
1722 * config/mips/iris6.h: Same.
1723 * config/mips/mips.md: Same.
1724 * config/mips/mips.c: Same; also add "-mabi=o64" option.
1725 * config/mips/mips.h: Same; also define ABI_O64.
1727 Mon Nov 23 17:02:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1729 * configure.in: Use AC_PREREQ(2.12.1).
1731 Mon Nov 23 10:16:38 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
1733 * cccp.c (S_ISREG, S_ISDIR): Delete defines.
1734 * cpplib.c, gcc.c: Likewise.
1735 * system.h (S_ISREG, S_ISDIR): Define if not already defined.
1737 Mon Nov 23 09:53:44 1998 Richard Henderson <rth@cygnus.com>
1739 * local-alloc.c (local_alloc): Use malloc not alloca for
1740 reg_qty, reg_offset, ref_next_in_qty.
1742 Mon Nov 23 16:46:46 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1744 * caller-save.c (insert_one_insn): Initialize the live_before and
1745 live_after register sets.
1749 * config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
1750 (___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
1751 * sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
1752 (fp_reg_names, assembler_dialect): New variables.
1753 (print_operand_address): Handle SUBREGs.
1754 (print_operand): Added 'o' case.
1755 Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
1756 Name of FP registers depends on mode.
1757 (expand_block_move): Emit different code for SH4 hardware.
1758 (prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
1759 (from_compare): Likewise.
1760 (add_constant): New argument last_value. Changed all callers.
1761 (find_barrier): Don't try HImode load for FPUL_REG.
1762 (machine_dependent_reorg): Likewise.
1763 (sfunc_uses_reg): A CLOBBER cannot be the address register use.
1764 (gen_far_branch): Emit a barrier after the new jump.
1765 (barrier_align): Don't trust instruction lengths before
1767 (machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
1768 Use auto-inc addressing for fp registers if doubles need to
1769 be loaded in two steps.
1770 Set sh_flag_remove_dead_before_cse.
1771 (push): Support for TARGET_FMOVD. Use gen_push_fpul for fpul.
1772 (pop): Support for TARGET_FMOVD. Use gen_pop_fpul for fpul.
1773 (calc_live_regs): Support for TARGET_FMOVD. Don't save FPSCR.
1774 Support for FIRST_XD_REG .. LAST_XD_REG.
1775 (sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
1776 (sh_expand_epilogue): Likewise.
1777 (sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
1778 (initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
1779 (arith_reg_operand): FPUL_REG is OK for SH4.
1780 (fp_arith_reg_operand, fp_extended_operand) New functions.
1781 (tertiary_reload_operand, fpscr_operand): Likewise.
1782 (commutative_float_operator, noncommutative_float_operator): Likewise.
1783 (binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
1784 (emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
1785 (expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
1786 (emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
1787 * sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
1788 (CONDITIONAL_REGISTER_USAGE): Likewise.
1789 (HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
1790 (TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
1791 (TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
1792 (target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
1793 (OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
1794 to -1 and sh_flag_remove_dead_before_cse to 1.
1795 (ASSEMBLER_DIALECT): Define to assembler_dialect.
1796 (assembler_dialect, fp_reg_names): Declare.
1797 (OVERRIDE_OPTIONS): Add code for TARGET_SH4.
1798 Hide names of registers that are not accessible.
1799 (CACHE_LOG): Take TARGET_CACHE32 into account.
1800 (LOOP_ALIGN): Take TARGET_HARWARD into account.
1801 (FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
1802 (FIRST_PSEUDO_REGISTER: Now 49.
1803 (FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
1804 (HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
1805 (HARD_REGNO_MODE_OK): Update.
1806 (enum reg_class): Add DF_REGS and FPSCR_REGS.
1807 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
1808 (SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
1809 (CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
1810 (NPARM_REGS): Eight floating point parameter registers on SH4.
1811 (BASE_RETURN_VALUE_REG): SH4 also passes double values
1812 in floating point registers.
1813 (GET_SH_ARG_CLASS) Likewise.
1814 Complex float types are also returned in float registers.
1815 (BASE_ARG_REG): Complex float types are also passes in float registers.
1816 (FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
1817 (LIBCALL_VALUE): Remove trailing semicolon.
1818 (ROUND_REG): Round when double precision value is passed in floating
1820 (FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
1821 passed on the stack.
1822 (FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
1823 (FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
1824 (TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
1825 (INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
1826 (MODE_DISP_OK_8): Not for SH4 DFmode.
1827 (GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
1828 Allow indexed addressing for PSImode after reload.
1829 (LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
1830 (LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
1831 Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
1832 (DOUBLE_TYPE_SIZE): 64 for SH4.
1833 (RTX_COSTS): Add PLUS case.
1834 Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
1835 (REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
1836 MAC_REGS, PR_REGS, DF_REGS.
1837 (REGISTER_NAMES): Use fp_reg_names.
1838 (enum processor_type): Add PROCESSOR_SH4.
1839 (sh_flag_remove_dead_before_cse): Declare.
1840 (rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
1841 (PREDICATE_CODES): Add binary_float_operator,
1842 commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
1843 fpscr_operand, noncommutative_float_operator.
1844 (ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
1845 (SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
1846 * sh.md (attribute cpu): Add value sh4.
1847 (attrbutes fmovd, issues): Define.
1848 (attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
1849 (function units memory, int, mpy, fp): Make dependent on issue rate.
1850 (function units issue, single_issue, load_si, load): Define.
1851 (function units load_store, fdiv, gp_fpul): Define.
1852 (attribute hit_stack): Provide proper default.
1853 (use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
1854 (udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
1855 (udivsi3, divsi3): Emit special patterns for SH4 hardware,
1856 (mulsi3_call): Now uses match_operand for function address.
1857 (mulsi3): Also emit code for SH1 case. Wrap result in REG_LIBCALL /
1859 (push, pop, push_e, pop_e): Now define_expands.
1860 (push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
1861 (movsi_ie): Added y/i alternative.
1862 (ic_invalidate_line_i, movdf_i4): New insns.
1863 (movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
1864 (reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
1865 (movdf): Add special code for SH4.
1866 (movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
1867 (call_valuei, calli, call_value): Likewise.
1868 (movsf): Emit no-op move.
1869 (mov_nop, movsi_y): New insns.
1870 (blt, sge): generalize to handle DFmode.
1871 (return predicate): Call emit_fpscr_use and remove_dead_before_cse.
1872 (block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
1873 (block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
1874 (fpu_switch0, fpu_switch1, movpsi): New expanders.
1875 (fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
1876 (toggle_sz): New insn.
1877 (addsf3, subsf3, mulsf3, divsf3): Now define_expands.
1878 (addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
1879 (macsf3): Make use of fpscr visible. Disable for SH4.
1880 (floatsisf2): Make use of fpscr visible.
1881 (floatsisf2_i4): New insn.
1882 (floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
1883 (ieee_ccmpeqsf_t): Likewise.
1884 (fix_truncsfsi2): Emit different code for SH4.
1885 (fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
1886 (cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
1887 (negsf2, sqrtsf2, abssf2): Now expanders.
1888 (adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
1889 (negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
1890 (muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
1891 (fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
1892 (fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
1893 (fix_truncdfsi2_i4_2+1): New splitters.
1894 (negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
1895 (extendsfdf2, truncdfsf2): New expanders.
1896 (truncdfsf2_i4): New insn.
1897 * t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
1898 (MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
1899 * float-sh.h: When testing for __SH3E__, also test for
1900 __SH4_SINGLE_ONLY__ .
1901 * va-sh.h (__va_freg): Define to float.
1902 (__va_greg, __fa_freg, __gnuc_va_list, va_start):
1903 Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
1904 (__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
1905 (__PASS_AS_FLOAT): Use different definition for __SH4__ and
1907 (TARGET_SH4_P): Define.
1910 * sh.md (movdf_k, movsf_i): Tweak the condition so that
1911 init_expr_once is satisfied about the existence of load / store insns.
1913 * sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
1914 change m constraint in source operand to mr / mf .
1916 * va-sh.h (__va_arg_sh1): Use __asm instead of asm.
1918 * (__VA_REEF): Define.
1919 (__va_arg_sh1): Use it.
1921 * va-sh.h (va_start, va_arg, va_copy): Add parenteses.
1923 Sun Nov 22 21:34:02 1998 Jeffrey A Law (law@cygnus.com)
1925 * i386/dgux.c (struct option): Add new "description field".
1926 * m88k/m88k.c (struct option): Likewise.
1928 Sun Nov 22 16:07:57 PST 1998 Jeff Law (law@cygnus.com)
1930 * version.c: Bump for snapshot.
1932 Sun Nov 22 13:40:02 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1934 * regmove.c (regmove_profitable_p): Use return value of find_matches
1937 Sun Nov 22 02:47:37 PST 1998 Jeff Law (law@cygnus.com)
1939 * version.c: Bump for snapshot.
1941 Sat Nov 21 22:12:09 1998 Jeffrey A Law (law@cygnus.com)
1943 * reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
1944 without reload having been called earlier.
1946 * v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
1948 (v850_reorg): Similarly.
1950 * loop.c (check_dbra_loop): Avoid using gen_add2_insn.
1952 Sat Nov 21 02:18:38 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1954 * loop.c (move_movables): Start of libcall might be new loop start.
1956 Fri Nov 20 12:14:16 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1958 * hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().
1960 Fri Nov 20 08:34:00 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1962 * function.c (nonlocal_goto_handler_slots): Renamed from
1963 nonlocal_goto_handler_slot; now an EXPR_LIST chain.
1964 (push_function_context_to): Adjust for this change.
1965 (pop_function_context_from): Likewise.
1966 (init_function_start): Likewise.
1967 (expand_function_end): Likewise.
1968 * function.h (struct function): Likewise.
1969 * calls.c (expand_call): Likewise.
1970 * explow.c (allocate_dynamic_stack_space): Likewise.
1971 * expr.h (nonlocal_goto_handler_slots): Rename its declaration.
1972 * stmt.c (declare_nonlocal_label): Make a new handler slot for each
1974 (expand_goto): When doing a nonlocal goto, find corresponding handler
1975 slot for it. Don't put the label address in the static chain register.
1976 (expand_end_bindings): Break out nonlocal goto handling code into
1977 three new functions.
1978 (expand_nl_handler_label, expand_nl_goto_receiver,
1979 expand_nl_goto_receivers): New static functions, broken out of
1980 expand_end_bindings and adapted to create one handler per nonlocal
1982 * function.c (delete_handlers): Delete insn if it references any of
1983 the nonlocal goto handler slots.
1984 * i960.md (nonlocal_goto): Comment out code that modifies
1986 * sparc.md (nonlocal_goto): Likewise.
1987 (goto_handler_and_restore_v9): Comment out.
1988 (goto_handler_and_restore_v9_sp64): Comment out.
1990 Thu Nov 19 23:44:38 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1992 * expr.c (STACK_BYTES): Delete unused macro.
1993 * calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
1994 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1995 (expand_call): Likewise.
1996 (emit_library_call): Likewise.
1997 (emit_library_call_value): Likewise.
1998 * function.c: Provide default for PREFERRED_STACK_BOUNDARY.
1999 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
2000 * explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
2001 (round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
2002 (allocate_dynamic_stack_space): Likewise.
2003 * tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
2004 (STACK_BOUNDARY): Update description to reflect the new situation.
2006 Thu Nov 19 22:20:51 1998 Jeffrey A Law (law@cygnus.com)
2008 * reorg.c (relax_delay_slots): When optimizing for code size, if a
2009 return with a filled delay slot is followed by a return with an
2010 unfilled delay slot, delete the first return and reemit the insn
2011 that was previously in its delay slot.
2013 * i860.c (single_insn_src_p): Add missing parens.
2014 * ginclude/math-3300.h: Likewise.
2016 Thu Nov 19 20:55:59 1998 H.J. Lu (hjl@gnu.org)
2018 * regclass.c (init_reg_sets_1): Add prototype.
2019 (init_reg_modes): Likewise.
2021 1998-11-19 Zack Weinberg <zack@rabi.phys.columbia.edu>
2023 * c-common.c: Change warning messages to say `comparison is
2024 always true' or `comparison is always false' instead of the
2025 confusing `is always 0', `is always 1'.
2027 Thu Nov 19 19:05:49 1998 Per Bothner <bothner@cygnus.com>
2029 * print-tree.c (print_node): After printing BLOCK or BIND_EXPR,
2030 break instead of return (which loses closing '>').
2032 Thu Nov 19 19:34:13 1998 Jeffrey A Law (law@cygnus.com)
2034 * i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
2035 standard 387 constants.
2037 * i386.md (jump): Explicitly set "memory" attribute.
2038 (indirect_jump, prologue_set_stack_ptr): Likewise.
2039 (prologue_get_pc_and_set_got, pop): Likewise.
2040 (allocate_stack_worder, blockage, return_internal): Likewise.
2041 (return_pop_internal, nop): Likewise.
2042 (epilogue_set_stack_ptr, leave): Likewise.
2044 Thu Nov 19 15:42:54 1998 Nick Clifton <nickc@cygnus.com>
2046 * config/arm/coff.h: Set USER_LABEL_PREFIX to "_".
2048 Thu Nov 19 23:20:59 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2050 * reload1.c (reload_reg_free_for_value_p):
2051 Early auto_inc reloads don't conflict with outputs.
2053 Thu Nov 19 12:58:55 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2055 * configure.in: Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
2056 Instead call AC_HEADER_SYS_WAIT.
2058 * collect2.c: Don't provide defaults for sys/wait.h macros.
2060 * protoize.c: Likewise. Also, don't include sys/wait.h.
2062 * system.h: Include sys/wait.h and provide macro defaults.
2064 1998-11-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2066 * Makefile.in (mandir): Set to @mandir@.
2067 (man1dir): New variable to hold the former value of $(mandir).
2068 Replace all uses of $(mandir) by $(man1dir).
2070 Wed Nov 18 16:31:28 1998 Jim Wilson <wilson@cygnus.com>
2072 * reload.c (find_reloads_address_part): If have a CONST_INT, create
2073 a new one before passing it to force_const_mem.
2075 * reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
2076 find_reloads_address call.
2078 Wed Nov 18 22:13:00 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2080 * expr.c (store_expr): Don't generate load-store pair
2081 if TEMP is identical (according to ==) with TARGET.
2083 Tue Nov 17 22:25:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2085 * reload1.c (reload_reg_free_for_value_p): When considered reload
2086 has an output, matching inputs are not sufficient to avoid conflict.
2088 Tue Nov 17 11:51:16 1998 Mark Mitchell <mark@markmitchell.com>
2090 * hash.h (hash_table_key): New type.
2091 (hash_entry): Change `string' field to generic `key'.
2092 (hash_table): Add `comp' and `hash' functions.
2093 (hash_table_init): Take them as input.
2094 (hash_table_init_n): Likewise.
2095 (hash_lookup): Modify for generic keys.
2096 (hash_newfunc): Likewise.
2097 (hash_traverse): Likewise.
2098 (string_hash): New function.
2099 (string_compare): Likewise.
2100 (string_copy): Likewise.
2101 * hash.c (hash_table_init_n): Modify for generic keys.
2102 (hash_table_init): Likewise.
2103 (hash_lookup): Likewise.
2104 (hash_newfunc): Likewise.
2105 (hash_traverse): Likewise.
2106 (string_hash): Split out from hash_lookup.
2107 (string_compare): New function.
2108 (string_copy): Split out from hash_lookup.
2109 * tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
2111 (symbol_hash_lookup): Likewise.
2112 (file_hash_newfunc): Likewise.
2113 (file_hash_lookup): Likewise.
2114 (demangled_hash_newfunc): Likewise.
2115 (demangled_hash_lookup): Likewise.
2116 (tlink_int): Likewise.
2117 (read_repo_file): Likewise.
2118 (recompile_files): Likewise.
2119 (demangle_new_symbols): Likewise.
2120 (scan_linker_output): Likewise.
2122 Tue Nov 17 17:13:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2124 * flow.c (insn_dead_p): New argument NOTES. Changed all callers.
2126 Mon Nov 16 17:56:07 1998 David Edelsohn <edelsohn@mhpcc.edu>
2128 * rs6000.c (output_mi_thunk): Improve test for local branch.
2130 Mon Nov 16 17:56:07 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
2132 * rs6000.c (output_mi_thunk): Correct test for aggregate values.
2134 Mon Nov 16 21:02:52 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2136 * reload1.c (reload_reg_free_before_p): Delete.
2137 Changed all callers to use reload_reg_free_for_value_p instead.
2138 (reload_reg_free_for_value_p): Handle more reload types.
2139 A RELOAD_FOR_INPUT doesn't conflict with its
2140 RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
2141 Add special case for OUT == const0_rtx.
2142 Added ignore_address_reloads argument. Changed all callers.
2144 Mon Nov 16 02:22:29 1998 Jason Merrill <jason@yorick.cygnus.com>
2146 * toplev.c (compile_file): Don't pedwarn about undefined static
2147 functions just because we passed -Wunused.
2149 Mon Nov 16 04:41:41 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2151 * function.c (purge_addressof_1): Unshare rtl created by
2154 Mon Nov 16 04:23:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2156 * regmove.c (regmove_optimize): Don't do anything but
2157 optimize_reg_copy[123] when flag_regmove is not set.
2159 Sat Nov 14 15:05:07 1998 Richard Henderson <rth@cygnus.com>
2161 * alpha.md (addsi3, subsi3): Revise 5 Nov change to store DImode
2162 value in paradoxical SImode result, rather than truncating midpoint.
2164 Fri Nov 13 22:19:23 1998 Richard Henderson <rth@cygnus.com>
2166 * alpha.c (reg_not_elim_operand): New.
2167 * alpha.h (PREDICATE_CODES): Add it.
2168 * alpha.md (s48addq, s48subq patterns): Use it as the predicate
2169 for the multiplicand.
2171 Fri Nov 13 22:50:37 1998 David Edelsohn <edelsohn@mhpcc.edu>
2173 * rs6000.md (movsf): Remove explicit secondary-reload-like
2174 functionality. Only truncate SFmode store if in FPR.
2175 (movsf splitters): Combine const_double splitters.
2176 (movsf_hardfloat): Add GPR support.
2178 Fri Nov 13 11:02:11 1998 Stan Cox <scox@cygnus.com>
2180 * splet.h (SUBTARGET_OVERRIDE_OPTIONS): New to
2181 deprecate -mlive-g0 and -mbroken-saverestore.
2182 * t-splet (MULTILIB_OPTIONS): Likewise.
2184 * sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
2185 in a leaf function. Clarify total_size/extra_size relationship.
2187 Thu Nov 12 19:20:57 1998 Geoffrey Noer <noer@cygnus.com>
2189 * i386/cygwin32.asm: Delete.
2190 * i386/cygwin.asm: New file, renamed from cygwin32.asm.
2191 * i386/cygwin32.h: Delete.
2192 * i386/cygwin.h: New file, renamed from cygwin32.h.
2193 * i386/t-cygwin32: Delete.
2194 * i386/t-cygwin: New file, renamed from t-cygwin32. Include
2195 cygwin.asm instead of cygwin32.asm. Remove "32" from comment.
2196 * i386/x-cygwin32: Delete.
2197 * i386/x-cygwin: New file, renamed from x-cygwin32.
2198 * i386/xm-cygwin32: Delete.
2199 * i386/xm-cygwin: New file, renamed from xm-cygwin32. Use newly
2200 renamed cygwin_ funcs for path translations.
2201 * i386/win32.h: Define __CYGWIN__ when -mcygwin given.
2202 * i386/winnt.c: Remove "32" from comment about cygwin.
2203 * i386/mingw32.h: Fix references to cygwin32.h in light of above.
2204 * rs6000/cygwin32.h: Delete.
2205 * rs6000/cygwin.h: New file, renamed from cygwin32.h. Add
2206 -D__CYGWIN__ to CPP_PREDEFINES.
2207 * rs6000/x-cygwin32: Delete.
2208 * rs6000/x-cygwin: New file, renamed from x-cygwin32.
2209 * rs6000/xm-cygwin32: Delete.
2210 * rs6000/xm-cygwin: New file, renamed from xm-cygwin32.
2212 * configure.in: Check for cygwin* instead of cygwin32. Account
2213 for the rename of cygwin-related config files to lose the "32"s.
2214 * configure: Regenerate.
2216 * cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
2217 toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.
2219 Wed Nov 11 12:25:19 1998 Tom Tromey <tromey@cygnus.com>
2221 * Makefile.in (JAVAGC): New macro.
2222 * configure: Rebuilt.
2223 * configure.in: Recognize --enable-java-gc argument. Subst
2226 Thu Nov 12 03:32:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2228 Handle equivalences that have been obscured by gcse:
2230 * reload1.c (reload): Handle equivalences set up in multiple places.
2231 * local-alloc.c (reg_equiv_init_insns): New variable.
2232 (no_equiv): New function.
2233 (update_equiv_regs): Handle equivalences set up in multiple places.
2234 Don't ignore an insn just because its destination is likely to be
2237 Wed Nov 11 13:46:13 1998 Jim Wilson <wilson@cygnus.com>
2239 * except.c (expand_eh_return): Readd force_operand call lost in
2242 Tue Nov 10 17:04:11 1998 David Edelsohn <edelsohn@mhpcc.edu>
2244 * rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.
2246 1998-11-09 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2248 * dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.
2250 Mon Nov 9 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2252 * regmove.c (regmove_optimize): Fix error in last change.
2254 Mon Nov 9 16:37:52 1998 Andrew Cagney <cagney@b1.cygnus.com>
2256 * mips.c (function_prologue): When TARGET_MIPS16, adjust the register
2257 offset in the .mask pseudo to compensate for frame pointer adjustments.
2258 (mips16_fp_args, build_mips16_call_stub): For little endian, do not
2259 word swap arguments moved to/from FP registers.
2260 * mips16.S (DFREVCMP): Reverse arguments to OPCODE.
2262 Mon Nov 9 09:47:06 PST 1998 Jeff Law (law@cygnus.com)
2264 * version.c: Bump for snapshot.
2266 Mon Nov 9 02:14:14 PST 1998 Jeff Law (law@cygnus.com)
2268 * version.c: Bump for snapshot.
2270 Mon Nov 9 03:06:24 1998 Jeffrey A Law (law@cygnus.com)
2272 * reload1.c (delete_output_reload_insn): If a pseudo is set multiple
2273 times, then it can not be completely replaced.
2275 Mon Nov 9 00:39:02 1998 Richard Henderson <rth@cygnus.com>
2277 * alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.
2279 Sun Nov 8 17:50:30 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2281 * gansidecl.h: Prepend a "G" to the macro wrapping this file
2282 (to distinguish it from the macro wrapping ansidecl.h.)
2283 Include libiberty's ansidecl.h. Remove all redundant definitions.
2284 Define the PROTO() style macros in terms of the PARAMS() ones.
2287 * calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
2288 __STDC__, when deciding whether to use ANSI variable args.
2289 (emit_library_call_value): Likewise.
2291 * cccp.c (error): Likewise.
2292 (warning): Likewise.
2293 (error_with_line): Likewise.
2294 (warning_with_line): Likewise.
2295 (pedwarn): Likewise.
2296 (pedwarn_with_line): Likewise.
2297 (pedwarn_with_file_and_line): Likewise.
2300 * cexp.y (error): Likewise.
2301 (pedwarn): Likewise.
2302 (warning): Likewise.
2304 * collect2.c (fatal_perror): Likewise.
2308 * combine.c (gen_rtx_combine): Likewise.
2310 * cpperror.c (cpp_message): Likewise.
2311 (cpp_fatal): Likewise.
2313 * cpplib.c (cpp_error): Likewise.
2314 (cpp_warning): Likewise.
2315 (cpp_pedwarn): Likewise.
2316 (cpp_error_with_line): Likewise.
2317 (cpp_warning_with_line): Likewise.
2318 (cpp_pedwarn_with_line): Likewise.
2319 (cpp_pedwarn_with_file_and_line): Likewise.
2321 * cpplib.h: Don't define PARAMS() macro.
2323 * demangle.h: Likewise.
2325 * doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
2326 when deciding whether to use ANSI variable args.
2328 * emit-rtl.c (gen_rtx): Likewise.
2329 (gen_rtvec): Likewise.
2331 * final.c (asm_fprintf): Likewise.
2333 * fix-header.c (cpp_message): Likewise.
2335 (cpp_fatal): Likewise.
2337 * gcc.c (concat): Likewise.
2341 * genattr.c (fatal): Likewise.
2343 * genattrtab.c (attr_rtx): Likewise.
2344 (attr_printf): Likewise.
2347 * gencodes.c (fatal): Likewise.
2349 * genconfig.c (fatal): Likewise.
2351 * genemit.c (fatal): Likewise.
2353 * genextract.c (fatal): Likewise.
2355 * genflags.c (fatal): Likewise.
2357 * genopinit.c (fatal): Likewise.
2359 * genoutput.c (fatal): Likewise.
2362 * genpeep.c (fatal): Likewise.
2364 * genrecog.c (fatal): Likewise.
2366 * halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
2367 deciding whether to declare `tree_node' and `rtx_def'.
2369 * hash.h: Don't define stuff we get from gansidecl.h.
2371 * mips-tfile.c: Likewise. Define __proto() in terms of PARAMS().
2372 (fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
2373 whether to use ANSI variable args.
2376 * prefix.c (concat): Likewise.
2380 * system.h: Likewise.
2382 * toplev.c (error_with_file_and_line): Likewise.
2383 (error_with_decl): Likewise.
2384 (error_for_asm): Likewise.
2387 (warning_with_file_and_line): Likewise.
2388 (warning_with_decl): Likewise.
2389 (warning_for_asm): Likewise.
2390 (warning): Likewise.
2391 (pedwarn): Likewise.
2392 (pedwarn_with_decl): Likewise.
2393 (pedwarn_with_file_and_line): Likewise.
2395 (really_sorry): Likewise.
2397 * toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
2398 whether to declare `tree_node' and `rtx_def'.
2400 * tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
2401 deciding whether to use ANSI variable args.
2402 (build_nt): Likewise.
2403 (build_parse_node): Likewise.
2405 Sun Nov 8 13:10:55 PST 1998 Jeff Law (law@cygnus.com)
2407 * version.c: Bump for snapshot.
2409 Sat Nov 7 23:34:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2411 * Makefile.in (libcpp.a): Check RANLIB_TEST before runing RANLIB.
2413 Sat Nov 7 22:26:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
2415 * collect2.c (main, case 'b'): Use else if.
2417 Sat Nov 7 15:35:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2419 * configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
2420 Arrange to include gansidecl.h in {ht}config.h & tm.h just
2421 before the config/ directory headers.
2422 (tm_file_list, host_xm_file_list, build_xm_file_list): Handle
2423 gansidecl.h in the list of dependencies.
2425 * Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
2426 (TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
2427 mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
2428 gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
2429 dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
2430 cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
2433 * cccp.c: Don't include gansidecl.h.
2435 * collect2.c: Likewise.
2436 * config/c4x/c4x.c: Likewise.
2437 * config/v850/v850.h: Likewise.
2438 * cppalloc.c: Likewise.
2439 * cpperror.c: Likewise.
2440 * cppexp.c: Likewise.
2441 * cppfiles.c: Likewise.
2442 * cpphash.c: Likewise.
2443 * cpplib.c: Likewise.
2444 * cppmain.c: Likewise.
2445 * cppulp.c: Likewise.
2446 * demangle.h: Likewise.
2447 * doprint.c: Likewise.
2448 * dyn-string.c: Likewise.
2449 * eh-common.h: Likewise.
2450 * fix-header.c: Likewise.
2451 * frame.c: Likewise.
2454 * gen-protos.c: Likewise.
2455 * gencheck.c: Likewise.
2456 * halfpic.h: Likewise.
2458 * machmode.h: Likewise.
2459 * mbchar.c: Likewise.
2460 * prefix.c: Likewise.
2461 * protoize.c: Likewise.
2462 * recog.h: Likewise.
2464 * scan-decls.c: Likewise.
2466 * varray.h: Likewise.
2468 Sat Nov 7 11:37:53 1998 Richard Henderson <rth@cygnus.com>
2470 * i386.md (call_value_pop): If we're not popping anything,
2471 defer to call_value.
2472 (call_pop): Likewise defer to call.
2474 Sat Nov 7 02:49:56 1998 Richard Henderson <rth@cygnus.com>
2476 * function.c (purge_addressof): Clear purge_addressof_replacements
2477 only after processing the whole function.
2479 Sat Nov 7 00:54:55 1998 Jeffrey A Law (law@cygnus.com)
2481 * reload1.c (reload): If we can not perform a particular elimination
2482 when we thought we could earlier, then we must always iterate through
2483 the loop at least one more time.
2485 Fri Nov 6 19:37:33 1998 Richard Henderson <rth@cygnus.com>
2487 * alpha.c (add_operand): Simplify the CONST_INT match.
2488 (sext_add_operand): Correct typo in comparison by using
2489 CONST_OK_FOR_LETTER_P.
2490 * alpha.md (s?addq): Use sext_add_operand to allow the negative
2491 constant alternatives to be generated.
2492 (mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
2493 small constants, since the hw instructions do.
2495 Fri Nov 6 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2497 * reload1.c (emit_reload_insns): When rewriting the SET_DEST of a
2498 previous insn to store directly into our reload register, make sure
2499 that if the source of the previous insn is a reload register, its
2500 spill_reg_store and spill_reg_stored_to values are cleared.
2502 Fri Nov 6 16:35:10 1998 David Edelsohn <edelsohn@mhpcc.edu>
2504 * rs6000.md (floatunssidf2_internal splitter): Use base register
2505 operand, not hard-coded SP.
2507 Fri Nov 6 04:07:53 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2509 * jump.c (calculate_can_reach_end): Fix thinko.
2511 Fri Nov 6 00:16:04 1998 Jeffrey A Law (law@cygnus.com)
2513 * reorg.c (fill_simple_delay_slots): Fix typo.
2515 * romp.h (LEGITIMIZE_ADDRESS): Fix typo.
2517 Fri Nov 6 00:10:00 1998 Jan Hubicka (hubicka@freesoft.cz)
2519 * i386.md (extendsidi2): Use # in the output template.
2520 (extendsidi splitters): New splitters.
2522 Thu Nov 5 11:13:27 1998 Nick Clifton <nickc@cygnus.com>
2524 * configure.in: Use unknown-elf.h as tm_file for arm-elf
2526 * configure: Regenerate.
2528 Thu Nov 5 07:59:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2530 * jump.c (init_label_info, delete_barrier_successors,
2531 mark_all_labels, delete_unreferenced_labels,
2532 delete_noop_moves, calculate_can_reach_end): New functions broken
2533 out of jump_optimize.
2534 (jump_optimize): Use them.
2536 Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
2538 * except.c (expand_fixup_region_end): Make sure outer context labels
2539 are not issued in an inner context during cleanups.
2541 Thu Nov 5 04:03:06 1998 Richard Henderson <rth@cygnus.com>
2543 * alpha.md (addsi3, subsi3): No new temporaries once cse is
2546 Thu Nov 5 03:29:19 1998 Richard Henderson <rth@cygnus.com>
2548 * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
2549 to expose this midpoint to CSE.
2551 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2553 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
2555 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2557 * configure.in: Bring over gcc2 change of Nov 19 1997.
2559 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
2561 * toplev.c (output_lang_identify): Make definition dependent on
2562 ASM_IDENTIFY_LANGUAGE.
2564 * print-rtl.c (spaces): Make static.
2566 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
2568 * extend.texi: Clarify proper uses for register clobbers in asms.
2570 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2572 * recog.h (enum op_type): Define.
2573 (constrain_operands): Adjust prototype.
2574 (recog_op_type): Declare new variable.
2575 * recog.c (recog_op_type): New variable.
2576 (insn_invalid_p): Allow modifying an asm statement after reload.
2577 (extract_insn): Set up recog_op_type.
2578 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
2579 Don't compute operand types, use recog_op_type.
2580 Use the information computed by extract_insn instead of the previous
2581 method of finding it by insn code number.
2582 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
2583 * reorg.c (fill_slots_from_thread): Likewise.
2584 * reload1.c (reload_as_needed): Likewise.
2585 (gen_reload): Likewise.
2586 (inc_for_reload): Likewise.
2587 (reload_cse_simplify_operands): Likewise.
2588 Use the information computed by extract_insn instead of the previous
2589 method of finding it by insn code number.
2590 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
2592 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
2593 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
2594 Use the information computed by extract_insn instead of the previous
2595 method of finding it by insn code number.
2596 * regmove.c (find_matches): Likewise. Change meaning of the return
2597 value to be nonzero if the optimization can be performed, zero if
2598 not. All callers changed.
2599 Shorten some variable names to fix formatting problems.
2600 (regmove_optimize): Shorten some variable names to fix formatting
2602 Use the information computed by extract_insn instead of the previous
2603 method of finding it by insn code number.
2604 * regclass.c (scan_one_insn): Likewise.
2605 (record_reg_classes): Don't compute operand types, use recog_op_type.
2606 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
2607 recog_constraints instead.
2609 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
2611 * rtl.h (flow2_completed): Declare.
2612 * flow.c (flow2_completed): Definition.
2613 * toplev.c (rest_of_compilation): Set and clear flow2_completed
2616 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
2618 * Makefile.in (libcpp.a): Ranlib libcpp.a
2620 * cppulp.c (user_label_prefix): Initialize.
2622 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
2624 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
2625 at a RETURN if current_function_sp_is_unchanging is set.
2627 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2629 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
2631 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
2633 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
2634 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
2635 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
2636 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
2637 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
2638 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
2640 (LIB_SPEC): Handle -mno-cyginw option.
2641 (LINK_SPEC): Handle -mdll.
2643 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2645 * reload.c (find_reloads): Fix test for usage by other reload
2646 to handle secondary reloads properly.
2648 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2650 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
2651 intermediate structure which has exactly the members provided by
2652 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
2653 static intermediate structure.
2655 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
2656 from the intermediate structure. Do the same analogous fix in
2657 the case where ELIMINABLE_REGS is not defined.
2659 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
2661 * pa.h (SELECT_SECTION): Fix thinko.
2663 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
2665 * dwarf2out.c (output_call_frame_info): Comments on last change.
2667 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
2669 * arm.c (add_constant): When taking the address of an item in the
2670 pool, get the mode of the item addressed.
2672 * arm.c (final_prescan_insn case INSN): If an insn doesn't
2673 contain a SET or a PARALLEL, don't consider it for conditional
2676 Restore ABI compatibility for NetBSD.
2677 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
2679 (RETURN_IN_MEMORY): Likewise.
2681 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
2683 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
2684 (m32r_output_block_move): Rewrite bytes < 4 handling.
2686 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2688 * configure.in: Call AC_FUNC_VFORK.
2690 * collect2.c: Define VFORK_STRING as a printable string for
2691 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
2692 defined, include vfork.h. If VMS is defined, define vfork()
2693 appropriately. Remove vfork check on USG, we're using autoconf.
2694 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
2695 checking locally what string to pass.
2696 (scan_prog_file): Likewise.
2697 (scan_libraries): Likewise.
2699 * gcc.c: Remove vfork check on USG, we're using autoconf.
2700 Besides, no calls to vfork/fork occur in this file.
2702 * protoize.c: Likewise.
2704 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2706 * configure.in (DEFAULT_LINKER): renamed from LD
2707 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
2708 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
2709 * configure: rebuilt
2711 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2713 * BUGS: fix the regexp for `more' to find the appropriate node.
2714 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
2716 * BUGS: added link to the WWW FAQ
2718 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
2720 * version.c: Bump for snapshot.
2722 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
2724 * From Christian Gafton:
2725 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
2726 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
2727 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
2729 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
2731 * c-common.c (c_get_alias_set): Allow all type-punning through
2732 unions. Don't get confused about the type of a bit-field, despite
2733 the antics of build_modify_expr.
2735 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
2737 * fixinc.sco: Paramaterize #include_next values.
2738 * fixinc/fixinc.sco: Likewise.
2740 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
2742 * toplev.c (rest_of_compilation): No longer set reload_completed.
2743 * reload1.c (reload): Set it here. Perform instruction splitting
2744 after reload has completed if we will be running the scheduler
2747 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
2749 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
2750 EH region if exceptions are enabled and we're performing cross
2752 (find_cross_jump): Exit loop if the insns are in different EH regions.
2754 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
2756 * dwarf2out.c (output_call_frame_info): Use
2757 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
2759 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2761 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
2762 * c-common.c (check_format_info): Don't check for the 'x'
2763 format character twice, instead check for 'x' and 'X'
2765 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
2767 * configure.in (assembler features): Also make gas is configured if
2768 we find it in the souce tree.
2770 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
2772 * i386.c (i386_comp_type_attributes): Compare whether the
2773 attributes are defined, not their tree nodes.
2775 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2777 * configure.in (gxx_include_dir): bitten by autoconf quoting
2779 * configure: rebuilt
2781 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2783 * configure.in: Ignore non-absolute value in $AS.
2785 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
2787 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
2789 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
2791 * configure.in (msdosdjgpp): Set exeext and target_alias.
2793 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2795 * flow.c (XNMALLOC): New macro.
2796 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
2798 (add_edge, add_edge_to_label): New static functions.
2799 (free_bb_memory): New function.
2800 (flow_delete_insn): Delete function.
2801 (basic_block_drops_in): Delete variable.
2802 (find_basic_blocks): Allocate and initialize basic_block_head,
2803 basic_block_succ. Don't allocate basic_block_drops_in.
2804 Call free_bb_memory at the beginning.
2805 (find_basic_blocks_1): Don't do multiple passes.
2806 Delete code to compute basic_block_drops_in.
2807 After calling make_edges, mark blocks reached by current block live.
2808 Update test for unreachable live blocks.
2809 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
2811 Simplify to call add_edge_to_label when a LABEL_REF is found.
2812 (make_edges): Simplify to call add_edge_to_label instead of
2813 mark_label_ref most of the time.
2814 Compute here whether control drops into the next block.
2815 (delete_unreachable_blocks): Return void. All callers changed.
2816 Delete unreachable blocks in reverse order.
2817 After deleting all unreachable blocks, renumber the remaining ones
2818 and update n_basic_blocks.
2819 (delete_block): Speed up deletion a bit.
2820 Don't set basic_block_drops_in for deleted blocks.
2821 (free_basic_block_vars): Don't free basic_block_drops_in.
2822 (life_analysis_1): Update to use new edge representation.
2823 (dump_flow_info): Delete code to print basic block info; call
2824 dump_bb_data instead.
2825 (compute_preds_succs): Delete code to recompute basic_block_drops_in
2826 and uid_block_number.
2827 Simply copy the previously computed cfg.
2828 (dump_bb_data): New arg LIVE_INFO. All callers changed.
2829 Print register lifetime information if LIVE_INFO is nonzero.
2830 * basic-block.h (dump_bb_data): Adjust prototype.
2831 * gcse.c (gcse_main): Update call to dump_bb_data.
2832 * rtl.h (free_bb_memory): Declare.
2833 * toplev.c (rest_of_compilation): Call free_bb_memory.
2835 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
2836 (update_eliminable_offsets): Don't compute it.
2837 (set_initial_elim_offsets): Don't initialize it.
2838 Break out some code into set_initial_label_offsets so the rest of
2839 this function can be called from reload_as_needed.
2840 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
2841 ELIMINABLE_REGS isn't.
2842 (set_initial_label_offsets): New function, broken out of
2843 set_initial_elim_offsets.
2844 (set_offsets_for_label): New function, broken out of set_label_offsets
2845 and reload_as_needed.
2846 (reload): Call the two new functions.
2847 (reload_as_needed): Call set_initial_elim_offsets instead of
2848 duplicating the code. Likewise for set_offsets_for_label.
2850 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
2851 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
2852 any hard reg, reg_reloaded_dead contains valid data.
2854 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
2856 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
2857 "stdcall" and "cdecl" attributes.
2859 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
2861 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
2862 handle deleted no-op moves of hard registers.
2863 * haifa-sched.c (update_flow_info): Likewise.
2865 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
2867 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
2868 of the sequences to reload the HILO register which do not actually
2871 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
2873 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
2875 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
2877 * except.c (emit_eh_context): Make the EH context register stay alive
2878 at -O0 so stupid.c doesn't get confused.
2880 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2882 * emit-rtl.c (try_split): Do not try to split a BARRIER.
2884 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
2885 Jeffrey A Law (law@cygnus.com)
2887 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
2888 (zero_extendsidi2): Use # in output template and handle completely by
2890 (zero_extend splitters): New define_splits.
2891 (ashiftrt_32): New pattern.
2893 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
2895 * tree.c (append_random_chars): New fn.
2896 (get_file_function_name_long): Use it.
2898 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
2900 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
2901 (LIBCPP_OBJS): New. Add cppulp.o.
2902 (cppmain, fix-header): Depend on and use libcpp.a.
2903 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
2904 of the individual object files.
2905 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
2908 * cccp.c (user_label_prefix): New.
2909 (main): Set it off -f*leading-underscore.
2910 (special_symbol): Use it.
2911 * cpplib.c (special_symbol): Likewise.
2912 (cpp_handle_option): Handle -f*leading-underscore.
2913 * cppulp.c: New file.
2915 * output.h (user_label_prefix): Declare it.
2916 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
2917 * toplev.c (f_options, main): Handle -f*leading-underscore.
2919 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
2920 referencing USER_LABEL_PREFIX directly.
2921 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
2922 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
2923 * final.c (asm_fprintf): Use user_label_prefix instead.
2924 * arm/thumb.c (thumb_print_operand): Likewise.
2926 * gcc.c (default_compilers): Pass -f*leading-underscore on to
2927 cpp wherever appropriate.
2929 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
2931 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
2932 specific compiler switches.
2934 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
2936 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
2939 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2941 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
2942 structure which has exactly the members provided by EXTRA_SPECS.
2943 Xmalloc() the real `extra_specs', and initialize it from this
2944 intermediate structure.
2946 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
2948 * mips.h (EXTRA_SPECS): Likewise.
2950 * sparc.h (EXTRA_SPECS): Likewise.
2952 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2954 * function.c (purge_addressof_1): Instead of aborting when a
2955 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
2956 work just put the ADDRESSOF on stack. Otherwise remember all such
2957 successfull replacements, so that exactly the same replacements
2958 can be made on the REG_NOTEs. Remove the special case for CALL
2960 (purge_addressof_replacements): New variable.
2961 (purge_addressof): Clear it at end.
2963 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2965 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
2966 (lang_init): Call check_newline always.
2967 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
2968 cpp_start_read, set yy_cur and yy_lim to read from
2969 parse_in.token_buffer, so that we'll see the first #line
2971 * cpplib.c (cpp_start_read): finclude the main input file
2972 before processing -include/-imacros. Process -imacros and
2973 -include separately, and handle -include by stacking a
2974 buffer for the file in question as if it'd been #included.
2975 * toplev.c (documented_lang_options) Recognize -H when
2978 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2980 * cpplib.c: Merge do_once into do_pragma. Break file handling
2981 code out of do_include.
2982 Move append_include_chain, deps_output,
2983 file_cleanup, redundant_include_p, import_hash,
2984 lookup_import, add_import, read_filename_string, read_name_map,
2985 open_include_file, finclude, safe_read to cppfiles.c.
2986 Move prototypes for deps_output, append_include_chain,
2987 finclude to cpplib.h. Move definition of struct
2988 file_name_list there also.
2990 * cppfiles.c: New file. Contains all the above functions
2991 broken out of cpplib.c; also hack_vms_include_specification
2992 from cccp.c and find_include_file, a new function broken out of
2995 * Makefile.in (cppmain): Depend on cppfiles.o.
2996 (fix-header): Likewise.
2997 (cppfiles.o): New target.
2998 * configure.in (--enable-c-cpplib): Add cppfiles.o to
2999 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
3001 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
3003 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
3004 if pending_types is non-zero.
3005 (dwarfout_finish): Verify pending_types is zero before finishing.
3007 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
3009 * expr.c (convert_move): Use shifts to perform the move if a
3010 suitable extend pattern cannot be found. Code written by
3011 Richard Henderson <rth@cygnus.com>.
3013 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3015 * regclass.c (renumber, regno_allocated): New static variables, moved
3016 out of allocate_reg_info.
3017 (allocate_reg_info): Move these two variables outside the function.
3018 Move code to free memory into new function free_reg_info.
3019 (free_reg_info): New function, broken out of allocate_reg_info.
3020 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
3021 * rtl.h (allocate_reg_info): Don't declare.
3022 (free_reg_info): Declare.
3024 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
3026 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
3028 * toplev.c (compile_file): Temporarily revert last change.
3030 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
3032 * c-typeck.c (convert_for_assignment): Parenthesize.
3034 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3036 * reload1.c (delete_output_reload): Avoid ambigous else.
3038 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
3040 * toplev.c (compile_file): Call allocate_reg_info to free register
3042 * rtl.h (allocate_reg_info): Declare.
3044 * PROJECTS: Remove entry for local spilling.
3046 * final.c (cleanup_subreg_operands): New function.
3047 (final_scan_insn): Use it.
3048 (alter_subreg): Clear the "used" field when we turn a SUBREG into
3050 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
3051 operands when reload has finished.
3052 * reload.h (cleanup_subreg_operands): Declare..
3053 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
3054 reload. Handled in reload itself.
3056 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3058 * reload1.c (verify_initial_offsets): New function.
3059 (reload): Call it after reload_as_needed. Also verify that the frame
3060 size stays constant during reload_as_needed.
3061 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
3063 * reload.h (struct insn_chain): Add need_operand_change element.
3064 * reload1.c (new_insn_chain): Clear it.
3065 (calculate_needs_all_insns): Set it; don't overload need_reload.
3066 (reload_as_needed): Use it.
3068 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
3069 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
3070 and reload_address_index_reg_class.
3071 (find_reloads_address_1): Likewise.
3072 * reload.h (reload_address_base_reg_class,
3073 reload_address_index_reg_class): Don't declare.
3074 * reload1.c (reg_old_renumber, pseudo_previous_regs,
3075 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
3076 (used_spill_regs): Now static.
3077 (reload_address_base_reg_class, reload_address_index_reg_class,
3078 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
3079 basic_block_needs, max_needs, group_size, group_mode, max_groups,
3080 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
3083 (init_reload): Delete code to compute base/index reg classes.
3084 (reload): Delete variable J.
3085 Delete code to manage basic_block_needs.
3086 Don't compute regs_explicitly_used.
3087 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
3088 pseudo_previous_regs.
3089 Initialize bad_spill_regs_global.
3090 Don't call order_regs_for_reload here.
3091 Don't initialize spill_reg_order and n_spills.
3092 Don't forbid explicitly used regs to be used for spill regs.
3093 Change main loop to infinite loop, with explicit break statements.
3094 Make SOMETHING_CHANGED variable local to that loop.
3095 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
3096 max_groups_insn, max_nongroups_insn, group_size, group_mode.
3097 Make sure spilled_speudos is cleared before calling spill_hard_reg or
3099 Don't call dump_needs.
3100 Delete code to reset potential_reload_regs.
3101 Delete code to terminate loop conditional on the global needs variables
3102 showing no further needs.
3103 (calculate_needs_all_insns): Return void. All callers changed.
3104 Initialize somehing_needs_elimination here, not in reload.
3105 Delete avoid_return_reg kludge.
3106 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
3107 All callers changed.
3108 Initialize the group_mode and group_size elements of the arg CHAIN.
3109 Delete code to manage basic_block_needs.
3110 Operate on elements of CHAIN instead of global variables.
3111 Delete avoid_return_reg kludge.
3112 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
3113 All callers changed.
3114 Operate on elements of CHAIN instead of global variables.
3115 Delete special SMALL_REGISTER_CLASSES code.
3116 Delete spill_failure code; now in new_spill_reg.
3117 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
3118 All callers changed.
3119 Operate on elements of CHAIN instead of global variables.
3120 (maybe_mark_pseudo_spilled): New static function.
3121 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
3122 All callers changed.
3123 Operate on elements of CHAIN instead of global variables.
3124 Call order_regs_for_reload here, not in reload.
3125 Initialize spill_reg_order and n_spills.
3126 Simplify test whether an asm insn is involved.
3127 Delete spill_failure code; now in new_spill_reg.
3128 Call maybe_mark_pseudo_spilled for everything marked as live in
3129 CHAIN. Merge CHAIN's used_spill_regs into the global variable
3131 (dump_needs): Take CHAIN arg. No longer static, to prevent the
3132 compiler from optimizing this function (now unused) away.
3133 Operate on elements of CHAIN instead of global variables.
3134 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
3136 Operate on elements of CHAIN instead of global variables.
3137 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
3138 take CHAIN arg. All callers changed.
3139 Operate on elements of CHAIN instead of global variables.
3140 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
3141 CHAIN, NONGROUP args. Return void. All callers changed.
3142 Verify caller isn't trying to spill a pseudo.
3143 Simplify test for illegal reg, just use bad_spill_regs.
3144 Generate better error messages.
3145 Operate on elements of CHAIN instead of global variables.
3146 Mark spilled register in CHAIN's used_spill_regs element.
3147 Don't call spill_hard_reg.
3148 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
3149 Mark spilled hard regs in bad_spill_regs_global.
3150 Mark affected pseudos in spilled_pseudos, but don't spill them.
3151 (ior_hard_reg_set): New static function.
3152 (finish_spills): Return int. All callers changed.
3153 Compute spill_reg_order, n_spills and spill_regs here. Also update
3154 regs_ever_live for regs used as spills.
3155 For every pseudo in spilled_pseudos, spill it and mark the previous
3156 hard reg it had in pseudo_previous_regs. Compute which hard regs
3157 arseudo): New static function.
3158 (order_regs_for_reload): Take CHAIN arg. All callers changed.
3159 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
3160 hard registers explicitly used across the current insn into the set.
3161 Compute hard_reg_n_uses taking only pseudos live across this insn
3163 Tweak sorting of potential_reload_regs.
3164 (compare_spill_regs): Delete function.
3165 (reload_as_needed): Don't sort the spill_regs array, it's computed
3166 in proper order in finish_spills.
3167 Delete avoid_return_reg kludge.
3168 Delete code to manage basic_block_needs.
3169 (allocate_reload_reg): Minor speed/readability tweaks.
3170 Operate on elements of CHAIN instead of global variables.
3171 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
3172 Delete avoid_return_reg kludge.
3173 Initialize reload_reg_used from CHAIN's used_spill_regs element.
3174 Delete unused label FAIL.
3175 (reload_combine): Replce reload_address_index_reg_class with
3177 Don't use used_spill_regs to determine information about lifetime of
3180 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
3182 * toplev.c (display_help): Ignore empty target specific
3183 options, and if -W is also specified on the command line then
3184 display undocumented options.
3186 * config/arm/arm.c: Updated with changes in devo sources.
3187 * config/arm/arm.h: Updated with changes in devo sources.
3188 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
3189 * config/arm/lib1thumb.asm: Add ELF support.
3191 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
3193 * collect2.c (aix64_flag): New variable.
3194 (main, case 'b'): Parse it.
3195 (GCC_CHECK_HDR): object magic number must match mode.
3196 (scan_prog_file): Only check for shared object if valid header.
3197 Print debugging if header/mode mismatch.
3199 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
3201 Added support for arm-elf-linux configuration, submitted by Philip
3202 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
3203 code developed by Catherine Moore <clm@cygnus.com>. The following
3206 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
3209 * configure: Regenerated.
3211 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
3212 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
3213 definitions conditional on their not having been already defined.
3215 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
3216 and .type directives, and add "(PLT)" qualification to function
3219 * config/arm/linux.h: Deleted. This file is now superceeded by
3220 either linux-elf.h or linux-aout.h.
3222 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
3223 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
3225 Move definitions from old linux.h file here.
3227 * config/arm/elf.h: New file. Generic ARM/ELF support.
3229 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
3231 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
3233 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
3234 using the 26bit APCS.
3236 * config/arm/unknown-elf.h: New file. Support for OS'es other
3237 than Linux with ELF.
3239 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
3242 * config/arm/coff.h: Include aout.h for basic assembler macros.
3243 Add support for -mstructure_size_boundary=<n> command line option.
3245 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
3246 command line option. Make macro definitions conditional on their
3247 not having been already defined.
3249 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
3250 command line option.
3253 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
3255 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
3256 has been changed to not include a newline. Use this macro instead.
3257 (output_enumeral_list, const_value_attribute, name_attribute,
3258 comp_dir_attribute, prototyped_attribute, producer_attribute,
3259 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
3260 dwarfout_file_scope_decl, generate_new_sfname_entry,
3261 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
3262 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
3264 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
3266 * combine.c (subst): Process the inputs to a parallel asm_operands
3269 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
3271 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
3273 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
3275 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
3277 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
3279 * version.c: Bump for snapshot.
3281 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
3283 * stmt.c (expand_fixup): Set fixup->before_jump to a
3284 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
3286 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3288 * Makefile.in (recog.o): Depend on toplev.h.
3289 (insn-emit.o): Depend on recog.h.
3290 (insn-peep.o): Depend on recog.h and insn-config.h.
3292 * combine.c (simplify_set): Remove unused variable `scratches'.
3294 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
3295 and `idx' in macro conditional controlling their use.
3297 * genemit.c (main): Make the generated output file include
3298 recog.h. Don't have it declare `insn_operand_constraint', since
3299 we get it from recog.h.
3301 * genpeep.c (main): Make the generated output file include
3302 insn-config.h and recog.h.
3304 * recog.c: Include toplev.h.
3305 (extract_insn): Remove unused variable `p'.
3307 * regclass.c (fix_register): Add missing braces around initializer
3309 (allocate_reg_info): Move variable `i' into the scope where it is
3310 used. Change its type to `size_t'.
3312 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3314 * reload.c (push_reload): When merging reloads, make sure
3315 that reload_in_reg and reload_in are from the same reload in
3318 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
3320 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
3321 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
3323 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
3325 * loop.c (loop_has_tablejump): New variable.
3326 (prescan_loop): Scan for it.
3327 (insert_bct): Replace explicit scan with use of it.
3328 * regclass.c (regclass): Restore loop variable j.
3329 (record_reg_classes): Deterine op_types modifiers and initialize
3330 classes[i] before matching constraints. Handle matching
3333 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
3335 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
3338 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3340 * mips.h (EXTRA_SPECS): Add missing initializers.
3342 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3344 * sparc.h (EXTRA_SPECS): Add missing initializers.
3345 (sparc_defer_case_vector): Provide a prototype.
3347 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
3348 comparing it to the result of a pointer subtraction.
3350 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3352 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
3353 the argument to (unsigned char).
3355 * alpha.h (EXTRA_SPECS): Add missing initializers.
3356 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
3359 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
3361 * flow.c (life_analysis_1): Enable "rescan" code after reload.
3362 (propagate_block): Delete dead code after reload.
3364 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
3365 back Oct 15, 1998 change.
3366 * haifa-sched.c (update_flow_info): Likewise.
3367 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
3369 * mn10200.md (truncated shift): Accept constant inputs too.
3371 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
3373 * machmode.h (mode_mask_array): No longer const.
3374 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
3376 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
3378 * frame.c: Somewhat explain `FDE'.
3379 Suggested by Brendan Kehoe
3381 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
3383 * expr.c (pending_chain): Move up.
3384 (save_expr_status): Do save pending_chain.
3385 (restore_expr_status): And restore it.
3386 * function.h (struct function): Add pending_chain.
3388 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3390 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
3391 did not match the code.
3393 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3395 * regclass.c (regclass): Break out some code into new function
3396 scan_one_insn, and into regclass_init.
3397 (init_cost): New static variable, moved out of regclass.
3398 (regclass_init): Initialize it here, not in .
3399 (scan_one_insn): New static function, broken out of regclass.
3400 * recog.c (apply_change_group): Break out some code into new
3401 function insn_invalid_p.
3402 (insn_invalid_p): New static fn, broken out of apply_change_group.
3404 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
3406 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
3407 reg_reloaded_contents matches incremented pseudo.
3409 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
3411 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3413 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
3414 addressing modes with side effects. These are currently
3415 placeholders for the C4x target.
3417 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3419 * loop.c (express_from): Make sure that when generating a PLUS of
3420 a PLUS, any constant expression appears on the outermost PLUS.
3422 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
3424 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
3425 works if "$(srcdir)" != ".".
3427 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
3429 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
3430 existing SUBREG if we can, otherwise abort.
3432 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
3434 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
3435 `restrict' is applied to a non-pointer variable.
3437 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
3439 * invoke.texi: Document -flang-isoc9x.
3441 * Makefile.in (OBJS): Add splay-tree.o.
3442 (c-common.o): Depend on rtl.h.
3443 (splay-tree.o): List dependencies and provide build rule.
3445 * rtl.h (record_alias_subset): New function.
3446 * alias.c: Include splay-tree.h.
3447 (alias_set_entry): New type.
3448 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
3449 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
3450 (mems_in_disjoin_alias_sets_p): New function.
3451 (alias_set_compare): Likewise.
3452 (insert_subset_children): Likewise.
3453 (get_alias_set_entry): Likewise.
3455 * tree.h (TYPE_RESTRICT): New macro.
3456 (TYPE_UNQUALIFIED): New manifest constant.
3457 (TYPE_QUAL_CONST): Likewise
3458 (TYPE_QUAL_VOLATILE): Likewise.
3459 (TYPE_QUAL_RESTRICT): Likewise.
3460 (tree_type): Add restrict_flag. Reduce count of free bits.
3461 (DECL_POINTER_ALIAS_SET): New macro.
3462 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
3463 (tree_decl): Add pointer_alias_set.
3464 (build_qualified_type): New function.
3465 (build_type_variant): Define in terms of build_qualified_type.
3466 * tree.c (set_type_quals): New function.
3467 (make_node): Initializae DECL_POINTER_ALIAS_SET.
3468 (build_type_attribute_variant): Use build_qualified_type and
3470 (build_type_variant): Rename, and modify, to become...
3471 (build_qualified_type): New function.
3472 (build_complex_type): Use set_type_quals.
3474 * c-tree.h (C_TYPE_OBJECT_P): New macro.
3475 (C_TYPE_FUNCTION_P): Likewise.
3476 (C_TYPE_INCOMPLETE_P): Likewise.
3477 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
3478 (c_apply_type_quals_to_decl): New function.
3479 (c_build_qualified_type): New function.
3480 (c_build_type_variant): Define in terms of c_build_qualified_type.
3481 (flag_isoc9x): Declare.
3482 * c-typeck.c (qualify_type): Use c_build_qualified_type.
3483 (common_type): Change to use TYPE_QUALS.
3484 (comptypes): Likewise.
3485 (convert_for_assignment): Likewise.
3486 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
3487 * c-decl.c (flag_isoc9x): Define.
3488 (c_decode_option): Handle -flang-isoc9x.
3489 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
3490 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
3491 * c-lex.c (init_lex): Deal with restrict.
3492 (init_lex): Don't treat restrict as a reserved word in
3493 -traditional mode, or without -flang-isoc9x.
3494 * c-lex.h (rid): Add RID_RESTRICT.
3495 * c-parse.gperf (restrict, __restrict, __restrict__): Make
3496 equivalent to RID_RESTRICT.
3497 * c-parse.in (TYPE_QUAL): Update comment.
3498 * c-common.c: Include rtl.h.
3499 (c_find_base_decl): New function.
3500 (c_build_type_variant): Rename, and modify, to become ...
3501 (c_build_qualified_type): New function.
3502 (c_apply_type_quals_to_decl): Likewise.
3503 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
3504 a particular alias set for the reference.
3505 * toplev.c (documented_lang_options): Add -flang-isoc9x.
3507 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
3509 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
3510 command line switches.
3512 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
3514 * reload.c (loc_mentioned_in_p): Add missing braces to bind
3517 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
3519 * gcc.c (option_map): Added --classpath and --CLASSPATH.
3521 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
3523 * regclass.c (fix_register): Add error message.
3524 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
3527 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3529 * c-decl.c (warn_missing_noreturn): New global variable.
3530 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
3531 (finish_function): Implement missing noreturn warning.
3533 * c-tree.h (warn_missing_noreturn): Declare extern.
3535 * invoke.texi: Document new flags.
3537 * toplev.c (documented_lang_options): Add description.
3539 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3541 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
3542 loop optimization stable for the C4x.
3543 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
3544 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
3545 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
3547 (c4x_address_conflict): Be more paranoid when packing a volatile
3548 memref in a parallel load/store.
3550 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3552 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
3553 repeat_block_filler): Deleted.
3554 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
3555 Condition code not set if destination register from 'c' class.
3556 (*subbqi3_carry_clobber): Fix typo.
3558 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3560 * reorg.c (steal_delay_list_from_target) Check for insns that
3561 modify the condition codes and effect the direction of the jump
3564 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
3566 * function.c (purge_addressof_1): Replace call to
3567 emit_insns_before() with emit_insn_before().
3569 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
3571 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
3573 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3575 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
3577 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
3579 * gcse.c (compute_hash_table): Correctly identify hard regs which are
3580 clobbered across calls.
3582 * loop.c (scan_loop): Be more selective about what invariants are
3583 moved out of a loop.
3585 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
3587 * version.c: Bump for snapshot.
3589 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
3591 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
3592 static eh_context structure.
3594 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3596 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
3598 (try_combine): Don't update max_scratch.
3599 * flow.c (max_scratch, num_scratch): Delete variables.
3600 (life_analysis_1): Don't initialize max_scratch.
3601 (propagate_block): Don't update max_scratch.
3602 (mark_set_1): Don't increment num_scratch.
3603 * regs.h (max_scratch): Delete declaration.
3605 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
3607 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
3608 is nonzero. This is temporary!
3610 * sched.c (update_flow_info): Handle death notes made invalid by
3611 instruction splitting. Partially reverts Oct 15, 1998 patch.
3612 * haifa-sched.c (update_flow_info): Likewise.
3614 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
3616 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
3617 if it has a nonzero DECL_INITIAL.
3619 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3621 * Makefile.in (flow.o): Depend on recog.h.
3623 * cpplib.h (directive_table): Add missing initializiers.
3624 (finclude): Change type of variable `bsize' to size_t.
3626 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
3628 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
3630 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
3631 `int' when comparing against one.
3632 (cpp_file_line_for_message): Mark parameter `pfile' with
3634 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
3636 * flow.c: Include recog.h.
3637 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
3639 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
3640 `f' with ATTRIBUTE_UNUSED.
3641 (reposition_prologue_and_epilogue_notes): Likewise.
3643 * genopinit.c (gen_insn): Cast argument of ctype functions to
3646 * haifa-sched.c: Include recog.h.
3647 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
3648 comparing against one.
3650 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
3652 * mips-tfile.c (parse_end): Cast the argument of ctype function to
3654 (parse_ent): Likewise.
3655 (parse_input): Likewise.
3657 * optabs.c (init_libfuncs): Likewise.
3659 * protoize.c (find_rightmost_formals_list): Likewise.
3661 * recog.h (const_double_operand): Fix typo in prototype.
3663 * tlink.c (scan_linker_output): Cast the argument of ctype
3664 function to `unsigned char'.
3666 * toplev.c (check_lang_option): Cast the result of `strlen' to
3667 `int' when comparing against one.
3669 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
3671 * gcse.c (dump_cuid_table): Correct typo.
3673 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
3675 * toplev.c (display_help): Prepend '-m' to target specific
3677 (check_lang_option): Ignore text after end of first word of a
3678 language specific option.
3680 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3682 * reload1.c (reg_used_by_pseudo): New static variable.
3683 (choose_reload_regs): Initialize it.
3684 Use it instead of testing spill_reg_order to determine whether a
3685 pseudo is live in a hard register across the current insn.
3686 Fix a typo in a reference to reload_reg_rtx.
3688 * flow.c (propagate_block): Replace code that computes and uses
3689 regs_sometimes_live with simpler code that just walks the set of
3690 currently live registers.
3692 * Makefile.in (insn-extract.o): Fix dependencies.
3693 * genextract.c (main): Generate includes for insn-config.h and
3695 Delete generation of declarations which are now in recog.h.
3696 * genrecog.c (main): Delete generation of definitions which are
3698 * local-alloc.c (block_alloc): Use extract_insn and the variables
3699 it sets up instead of looking up values by insn_code.
3700 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
3701 recog_dup_num): Define here instead of generating the definition in
3703 (recog_n_operands, recog_n_dups, recog_n_alternatives,
3704 recog_operand_mode, recog_constraints, recog_operand_address_p):
3706 (extract_insn): New function.
3707 * recog.h (extract_insn): Declare function.
3708 (which_alternative, recog_n_operands, recog_n_dups,
3709 recog_n_alternatives, recog_operand_mode, recog_constraints,
3710 recog_operand_address_p): Declare variables.
3711 * regclass.c (n_occurrences): New static function.
3712 * reload.c (n_occurrences): Delete function.
3713 (find_reloads): Use extract_insn.
3714 * reload.h (n_occurrences): Delete declaration.
3716 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
3718 * reload1.c (reload_as_needed): Fix test for when to call
3719 update_eliminable_offsets.
3721 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3723 Fix consistency problems with reg_equiv_{mem,address};
3724 Improve reload inheritance;
3726 * reload.c (reload_out_reg): New variable.
3727 (loc_mentioned_in_p, remove_address_replacements): New functions.
3728 (remove_replacements): Deleted.
3729 (push_reload): Set reload_out_reg[i].
3730 When merging, also set reload_{in,out}_reg[i], and remove
3731 duplicate address reloads.
3732 (combine_reloads): Copy reload_out_reg[i].
3733 (find_reloads): Do make_memloc substitution also when
3734 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
3736 Include *recog_operand_loc in commutativity operand changes.
3737 Generate optional output reloads.
3738 Delete reference to n_memlocs. Don't set *recog_operand_loc before
3739 processing operands. Call make_memloc in reg_equiv_address code.
3740 Set *recog_operand_loc only after processing operands, and only
3741 if replace is true. Return a value.
3742 When changing address reload types for operands that didn't get
3743 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
3744 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
3745 Don't emit USEs for pseudo SUBREGs when not replacing.
3746 (find_reloads_address): Do make_memloc substitution also when
3747 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
3749 (find_reloads_toplev): Likewise.
3750 Call make_memloc in reg_equiv_address code.
3751 (debug_reload_to_stream): Add code to output reload_out_reg.
3752 (make_memloc): Delete local variable i, ifdefed out code, and
3753 references to memlocs and n_memlocs.
3754 (memlocs, n_memlocs): Delete.
3755 (push_secondary_reload): Clear reload_out_reg.
3756 (find_reloads_address_1): Provide memrefloc argument to all calls
3757 to find_reloads_address.
3758 In AUTO_INC code, handle non-directly addressable equivalences properly.
3759 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
3760 (find_reloads): Add return type.
3761 (remove_address_replacements, deallocate_reload_reg): Declare.
3762 * reload1.c (num_not_at_initial_offset): No longer static.
3763 (delete_address_reloads, delete_address_reloads_1): Likewise.
3764 (deallocate_reload_reg): New function.
3765 (spill_reg_stored_to): New array.
3766 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
3767 (eliminate_regs_in_insn): Move assignments of previous_offset and
3768 max_offset fields, and recalculation of num_not_at_initial_offset
3769 into new static function:
3770 (update_eliminable_offsets) .
3771 (reload_as_needed): Call update_eliminable_offsetss after calling
3773 Call forget_old_reloads_1 with contents of reloaded auto_inc
3774 expressions if the actual addressing can't be changed to match the
3776 (choose_reload_regs): For inheritance, replace
3777 reload_reg_free_before_p test with reload_reg_used_at_all test, and
3778 remove stand-alone reload_reg_used_at_all test.
3779 Use reload_out_reg to determine which reload regs have output reloads.
3780 Treat reload_override_in more similar to inherited reloads.
3781 Handle (subreg (reg... for inheritance.
3782 For flag_expensive_optimizations, add an extra pass to remove
3783 unnecessary reloads from known working inheritance.
3784 Delete obsolete code for pseudos replaced with MEMs.
3785 Handle inheritance from auto_inc expressions.
3786 (emit_reload_insns): If reload_in is a MEM, set OLD to
3788 Don't reload directly from oldequiv; if it's a pseudo with a
3789 stack slot, use reload_in[j].
3790 Check that reload_in_reg[j] is a MEM before replacing reload_in
3791 from reg_reloaded_contents.
3792 Include non-spill registers in reload inheritance processing.
3793 Also try to use reload_out_reg to set spill_reg_store /
3794 reg_last_reload_reg.
3795 In code to set new_spill_reg_store, use single_set to find out if
3796 there is a single set.
3797 Add code that allows to delete optional output reloads.
3798 Add code to allow deletion of output reloads that use no spill reg.
3799 At the end, set reload_override_in to oldequiv.
3800 Also call delete_output_reload if reload_out_reg is equal to old
3802 Add code to call delete_output_reload for stores with no matching load.
3803 Set / use spill_reg_stored_to.
3804 Handle case where secondary output reload uses a temporary, but
3805 actual store isn't found.
3806 When looking for a store of a value not loaded in order to call
3807 delete_output_reload, count_occurences should return 0 for no
3808 loads; but discount inherited input reloadill_reg_stored_to.
3809 Do checks for extra uses of REG. Changed all
3811 Use delete_address_reloads.
3812 (reload): Take return value of find_reloads into account.
3813 If a no-op set needs more than one reload, delete it.
3814 (reload_reg_free_before_p): RELOAD_FOR_INPUT
3815 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
3816 for the same operand.
3817 (clear_reload_reg_in_use): Check for other reloads that keep a
3819 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
3820 RELOAD_FOR_OPADDR_ADDR.
3821 Take into account when an address address reload is only needed
3822 for the address reload we are considering.
3823 (count_occurrences): Use rtx_equal_p for MEMs.
3824 (inc_for_reload): Return instruction that stores into RELOADREG.
3825 New argument two, IN, and rtx. Changed all callers.
3826 (calculate_needs_all_insns, reload_as_needed):
3827 Don't clear after_call for a CLOBBER.
3828 Keep track of how many hard registers need to be copied from
3829 after_call, and don't clear after_call before we have seen
3830 that much copies, or we see a different instruction.
3832 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
3834 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
3835 after reload has completed.
3837 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
3839 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
3840 a macro name and the next token with a single blank if that whitespace
3841 is in a macro buffer and the next token is not '('.
3843 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
3845 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
3847 (skip_if_group): Ditto.
3848 (skip_to_end_of_comment): Ditto.
3850 (discard_comments): Ditto.
3851 (change_newlines): Ditto.
3853 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
3855 * c-lex.c (yylex): Fix unaligned access of wchar_t.
3857 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
3859 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
3860 (TARGET_OPTIONS): Add --help documentation.
3862 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3864 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
3866 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
3868 * fixinc/* Moved in from ../contrib directory in preparation
3869 for integrating it into the normal build process. In particular,
3870 fixinc/Makefile.in must be config-ed into the build directory
3871 as fixinc/Makefile. Proposed patches to ./Makefile.in and
3872 ./configure.in will be "in the mail" momentarily.
3874 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
3876 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
3877 accidently walk into the free list. Comment how that can happen.
3878 (invalidate): Fix indentation.
3880 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3881 Jeffrey A Law (law@cygnus.com)
3883 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
3884 reload. Never perform rescans of the insn chain after reload.
3885 (propagate_block): Do not delete insn or create new autoinc addressing
3888 * jump.c (jump_optimize): Unconditionally use the code that was
3889 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
3890 * reload1.c (reload): When reloading is finished, delete all
3891 REG_DEAD and REG_UNUSED notes.
3892 (emit_reload_insns): Delete all code that was conditional on
3893 PRESERVE_DEATH_INFO_REGNO_P.
3894 (no_longer_dead_regs): Delete variable.
3895 (reload_cse_delete_death_notes): Delete function.
3896 (reload_cse_no_longer_dead): Delete function.
3897 (reload_cse_regs_1): Delete all code to handle deletion of death
3899 (reload_cse_noop_set_p): Likewise.
3900 (reload_cse_simplify_set): Likewise.
3901 (reload_cse_simplify_operands): Likewise.
3902 (reload_cse_move2add): Likewise.
3903 * reorg.c (used_spill_regs): Delete declaration.
3904 (max_label_num_after_reload): Delete declaration.
3905 (find_dead_or_set_registers): Don't assume that spill regs are
3906 dead at a CODE_LABEL.
3907 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
3909 * sched.c (sched_analyze_insn): Likewise.
3910 (update_flow_info): Likewise.
3911 * haifa-sched.c (sched_analyze_insn): Likewise.
3912 (update_flow_info): Likewise.
3913 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
3914 * toplev.c (max_label_num_after_reload): Delete variable.
3915 (rest_of_compilation): Don't set max_label_num_after_reload.
3916 Call life_analysis after reload_cse_regs if optimizing.
3917 * config/gmicro/gmicro.h: Delete comment referring to
3918 PRESERVE_DEATH_INFO_REGNO_P.
3919 * config/i386/i386.h: Likewise.
3920 * config/m88k/m88k.h: Likewise.
3921 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
3922 * config/sh/sh.h: Likewise.
3924 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
3926 * loop.c (strength_reduce): Restore marking bct_p as
3928 * rs6000.c (optimization_options): Change #ifdef HAIFA to
3929 HAVE_decrement_and_branch_on_count.
3930 (small_data_operand): Remove TARGET_ELF condition for marking
3931 parameters ATTRIBUTE_UNUSED.
3933 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
3935 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
3936 (SELECT_SECTION): Resync with svr4.h.
3938 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
3940 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
3943 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
3945 * c-pragma.c (handle_pragma_token): Test for null tree before
3946 dereferencing TREE_CODE.
3948 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3950 * config/c4x/c4x.c: Convert to use GEN_INT.
3951 (c4x_parallel_process): Rework to handle new repeat loop structure.
3953 * config/c4x/c4x.md: Convert to use GEN_INT.
3954 (rptb_end): Convert to use GE test. Replace uses with clobbers.
3955 (decrement_and_branch_on_count): Likewise.
3957 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
3958 loop.c has the desired functionality.
3959 (rc_reg_operand): New prototype.
3961 * config/c4x/t-c4x: Can now build all front ends.
3963 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
3965 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
3967 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
3969 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
3970 * config/t-rtems: Do not install assert.h -- use newlib's.
3972 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3974 * combine.c (combine_instructions): When finished, call init_recog.
3975 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
3977 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
3979 * toplev.c: If flag_syntax_only, don't open or write assembler file.
3981 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3983 * cppalloc.c (memory_full): Mark function prototype with
3986 * demangle.h (collect_exit): Likewise.
3988 * fix-header.c (v_fatal, fatal): Likewise.
3990 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
3993 * gcov.c (print_usage): Likewise.
3995 * genattr.c (fatal, fancy_abort): Likewise.
3997 * genattrtab.c (fatal, fancy_abort): Likewise.
3999 * gencodes.c (fatal, fancy_abort): Likewise.
4001 * genconfig.c (fatal, fancy_abort): Likewise.
4003 * genemit.c (fatal, fancy_abort): Likewise.
4005 * genextract.c (fatal, fancy_abort): Likewise.
4007 * genflags.c (fatal, fancy_abort): Likewise.
4009 * genopinit.c (fatal, fancy_abort): Likewise.
4011 * genoutput.c (fatal, fancy_abort): Likewise.
4013 * genpeep.c (fatal, fancy_abort): Likewise.
4015 * genrecog.c (fatal, fancy_abort): Likewise.
4017 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
4018 __sjpopnthrow, __throw): Likewise.
4020 * objc/objc-act.c (objc_fatal): Likewise.
4022 * protoize.c (usage, aux_info_corrupted,
4023 declare_source_confusing): Likewise.
4025 * rtl.c (dump_and_abort): Likewise.
4027 * rtl.h (sets_cc0_p): Likewise.
4029 * toplev.c (float_signal, pipe_closed): Likewise.
4031 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
4033 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
4034 when generating the decision tree for the general case.
4036 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
4037 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
4039 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4041 * Makefile.in (sched.o): Depend on recog.h.
4043 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
4044 (unsigned) when comparing against one.
4045 (find_base_value): Likewise.
4046 (record_base_value): Cast variable `regno' to (unsigned) when
4047 comparing against one. Cast the result of REGNO() macro to
4048 (unsigned) when comparing against one.
4049 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
4051 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
4052 variable where an unsigned index is needed.
4054 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
4055 before comparing against one.
4057 * collect2.c: Add prototypes for functions `error', `fatal' and
4058 `fatal_perror'. Make these functions take variable arguments
4059 instead of faking it with a fixed number of args.
4060 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
4063 * combine.c (can_combine_p): Mark parameter `pred' with
4065 (find_split_point): Cast variable `src' to (unsigned
4066 HOST_WIDE_INT) when comparing against one.
4067 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
4068 (simplify_logical): Likewise.
4069 (force_to_mode): Cast result of INTVAL() macro to (unsigned
4070 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
4071 HOST_WIDE_INT) in shift.
4072 (simplify_and_const_int): Cast result of INTVAL() macro to
4073 `unsigned HOST_WIDE_INT' when comparing against one.
4074 (merge_outer_ops): Cast variable const0 to `unsigned
4075 HOST_WIDE_INT' when comparing against the result of
4076 GET_MODE_MASK() macro.
4077 (simplify_comparison): Likewise for variable `c0'. Cast variable
4078 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
4079 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
4080 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
4081 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
4082 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
4083 comparing against one.
4084 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
4086 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
4087 macro to `unsigned HOST_WIDE_INT' when comparing against one.
4088 (output_block_move): Cast `sizeof' expression to (int) when
4089 comparing against one.
4090 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
4092 (save_restore_insns): Cast `base_offset' to `long' to match format
4093 specifier in fprintf.
4095 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
4096 to `enum machine_mode'.
4098 * flow.c (life_analysis_1): Remove unused variable `insn'.
4100 * gcc.c (translate_options): Move variables `j' and `k' into the
4101 scope in which they are used. Change their types to `size_t'.
4102 (set_spec): Cast the argument of ctype macro to `unsigned char'.
4103 (read_specs): Likewise.
4104 (process_command): Cast `sizeof' to (int) when comparing against one.
4105 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
4106 (handle_braces): Cast both sides of `==' expression to `long' to
4107 ensure sign matching.
4108 (main): Cast variable `i' to `int' when comparing against one.
4110 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
4111 int to size_t. Cast variable `i' to size_t when comparing against
4114 * genattrtab.c (convert_set_attr_alternative): Remove unused
4115 parameter `insn_code'. All callers changed.
4116 (convert_set_attr): Likewise.
4118 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
4119 size_t when comparing against one. Likewise for variable `len'.
4121 * global.c (global_alloc): Cast variable `max_regno' to size_t
4122 when comparing against one. Likewise for variable `max_allocno'.
4124 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
4126 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
4127 `set' with ATTRIBUTE_UNUSED.
4128 (find_free_reg): Cast `sizeof' expression to (int) when comparing
4131 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
4132 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
4133 (get_condition): Cast variable `const_val' to `unsigned
4134 HOST_WIDE_INT' when comparing against one. Cast unsigned
4135 expression to HOST_WIDE_INT when comparing against one.
4136 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
4137 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
4138 `unsigned' when comparing against one.
4140 * protoize.c (is_id_char): Change type of parameter `ch' to
4142 (munge_compile_params): Cast argument of ctype macro to (const
4144 (process_aux_info_file): Cast variable `aux_info_size' to int when
4145 comparing against one.
4146 (forward_to_next_token_char): Cast argument of ctype macro to
4147 `const unsigned char'.
4148 (edit_formals_lists): Likewise.
4149 (find_rightmost_formals_list): Likewise.
4150 (add_local_decl): Likewise.
4151 (add_global_decls): Likewise.
4152 (edit_fn_definition): Likewise.
4153 (do_cleaning): Likewise.
4154 (scan_for_missed_items): Likewise.
4155 (edit_file): Cast variable `orig_size' to (int) when comparing
4157 (main): Cast argument of ctype macro to `const unsigned char'.
4159 * recog.c (const_int_operand): Mark parameter `mode' with
4162 * regclass.c (record_reg_classes): Change type of variable `c' to
4163 `unsigned char'. Cast `char' array index to `unsigned char'.
4165 * reload.c (push_secondary_reload): Cast argument to
4166 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
4168 * reload1.c (calculate_needs): Cast `char' array index to
4170 (set_label_offsets): Change type of variable `i' to unsigned int.
4171 Cast result of XVECLEN() macro to unsigned when comparing against
4173 (mark_not_eliminable): Change type of variable `i' to unsigned.
4174 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
4175 when comparing against one.
4176 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
4177 comparing against one.
4178 (choose_reload_regs): Hide unused label `fail'.
4179 (reload_cse_simplify_operands): Cast `char' array index to
4181 (reload_combine_note_store): Mark parameter `set' with
4182 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
4184 (reload_cse_move2add): Remove unused variable `src2'.
4186 * sched.c: Include recog.h.
4187 (sched_note_set): Remove unused parameter `b'. All callers
4189 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
4190 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
4191 when comparing against one.
4193 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
4194 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
4195 comparing against one.
4197 * unroll.c (precondition_loop_p): Remove unused parameter
4198 `loop_end'. All callers changed.
4200 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4202 * reload1.c (maybe_fix_stack_asms): New static function.
4205 * reload.h (compute_use_by_pseudos): Declare.
4207 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
4208 (something_needs_reloads): Delete variable.
4209 (finish_spills): New function.
4210 (compute_use_by_pseudos): New function.
4212 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
4213 Use the reload_insn_chain instead of walking the rtl directly.
4215 (reload): Allocate and free spilled_pseudos.
4216 Ensure that all calls of spill_hard_reg are followed by a call to
4218 Use the insns_need_reload list instead of something_needs_reloads
4219 to find out if reload_as_needed must be called.
4220 Clear unused_insn_chains at the end.
4222 (calculate_needs_all_insns): Lose FIRST parameter. All callers
4224 Delete code to keep track of current basic block.
4225 Walk reload_insn_chain instead of the rtl structure. Build the
4226 insns_need_reload chain.
4227 Remember which insns need reloading/elimination by setting the
4228 appropriate fields in struct insn_chain, not by putting modes on the
4231 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
4232 arg INSN. All callers changed.
4233 Delete declaration of struct needs.
4234 Don't set something_needs_reloads.
4235 Record insn needs in the CHAIN argument.
4237 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
4239 (reload_as_needed): Lose FIRST arg. All callers changed.
4240 Walk the reload_insn_chain instead of the rtx structure.
4241 Delete code to keep track of current basic block.
4242 Rename one of the NEXT variables to OLD_NEXT.
4244 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
4246 (choose_reload_regs): Likewise.
4248 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
4251 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
4252 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
4253 (hard_regs_live, hard_regs_need_restore): Delete variables.
4254 (n_regs_saved): Now static.
4255 (referenced_regs, this_insn_sets): New variables.
4257 (setup_save_areas): Restructure the code a bit.
4259 (restore_referenced_regs): Delete function.
4260 (mark_referenced_regs): New function, similar to the old
4261 restore_referenced_regs, but mark registers in referenced_regs.
4263 (clear_reg_live): Delete function.
4264 (mark_set_regs): Renamed from set_reg_live. All callers changed.
4265 Only mark registers in this_insn_sets.
4267 (save_call_clobbered_regs): Rework this function to walk the
4268 reload_insn_chain instead of using the list of instructions directly.
4269 Delete code to keep track of register lives, compute live regs on the
4270 fly from information in the chain.
4271 Instead of calling restore_referenced_regs, use mark_referenced_regs,
4272 then walk the set it computes and call insert_restore as appropriate.
4274 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
4276 Restructure the code a bit. Test hard_regs_saved instead of
4277 hard_regs_need_restore.
4278 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
4279 args. All callers changed.
4280 Restructure the code a bit. Use TO_SAVE to determine which regs to
4281 save instead of more complicated test.
4282 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
4284 Create a new insn_chain structure for the new insn and place it
4287 * rtl.texi: Update documentation to reflect that reload no longer
4288 puts modes on the insns.
4290 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
4292 * function.c (purge_addressof_1): Force the first argument of a
4293 CALL insn to memory.
4295 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
4297 * rtl.h: Delete duplicate prototypes. Add some missing
4299 * rtlanal.c: (for_each_rtx): Formatting tweak.
4301 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4303 * real.c (emdnorm and etoasc): Disable round to even for c4x target
4304 to be compatible with TI compiler.
4306 * Makefile.in (USER_H): Add va-c4x.h to definition.
4308 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
4310 * function.c (purge_addressof_1): Fix typo in inequality: do
4311 bitfield optimization for equal mode sizes.
4312 * expmed.c (store_bit_field): Don't take subregs of subregs in
4313 the movstrict case. Tidy a potential problem in the multi-word case.
4314 (extract_bit_field): Likewise.
4316 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
4318 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
4320 Compute max_uid_for_flow by calling get_max_uid after the scan.
4321 (find_basic_blocks_1): Don't emit NOPs here.
4323 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
4325 * alias.c (base_alias_check): Accept new args for the modes of the
4326 two references. Use them to determine if an AND can overlap. Update
4328 (memrefs_conflict_p): Assume sizes are aligned, and uses them
4329 to determine if an AND can overlap.
4331 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
4333 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
4334 check. Add comment to document problems with TARGET_SUN_FPA version
4336 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
4338 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4340 * Makefile.in (gencheck.o): Depend on gansidecl.h.
4342 * c-common.c (print_char_table): Add missing initializers.
4343 (scan_char_table): Likewise.
4344 (time_char_table): Likewise.
4346 * c-decl.c (c_decode_option): Mark parameter `argc' with
4348 (declare_parm_level): Mark parameter `definition_flag' with
4351 * c-lex.c (readescape): Use `(unsigned)1' in shift.
4352 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
4355 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
4357 (emit_call_1): Mark parameters `fndecl' and `funtype' with
4359 (expand_call): Cast result of MIN() to (unsigned int) when
4360 comparing against an unsigned value.
4362 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
4364 (make_definition): Remove unused parameter `op'. All callers
4366 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
4367 comparing against the result of pointer arithmetic.
4369 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
4370 when comparing against one.
4372 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
4373 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
4375 (output_die): Move variable `i' into the scope in which it is
4376 used. Change its type to `unsigned'.
4377 (output_die): Cast the result of `strlen' to (int) when passing it
4378 to ASM_OUTPUT_ASCII().
4379 (output_pubnames): Likewise.
4380 (output_line_info): Likewise.
4382 * emit-rtl.c (global_rtl): Add missing initializers.
4384 * explow.c (promote_mode): Mark parameter `for_call' with
4387 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
4388 `unsigned HOST_WIDE_INT' when comparing against one.
4389 (synth_mult): Change type of variable `cost' to int.
4390 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
4392 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
4393 when comparing against one.
4394 (get_inner_reference): Change variable `alignment' to unsigned.
4395 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
4396 int) when comparing against one.
4397 (expand_builtin_setjmp): Change type of variable `i' to size_t.
4399 * fold-const.c (div_and_round_double): Cast BASE to
4400 (HOST_WIDE_INT) when comparing against one.
4402 * gencheck.c: Include gansidecl.h.
4403 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
4405 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
4406 `tcode' with ATTRIBUTE_UNUSED.
4408 * real.c (edivm): Cast constant value to (unsigned long) in
4409 expression compared against an unsigned value.
4411 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
4412 comparing against one.
4413 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
4414 when comparing against one.
4416 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
4417 (unsigned int) when comparing against one. Likewise for
4419 (smallest_mode_for_size): Likewise.
4420 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
4421 (restore_storage_status): Likewise.
4423 * toplev.c (debug_args): Add missing initializer.
4424 (f_options): Spelling correction. Add missing initializers.
4425 (documented_lang_options): Likewise.
4426 (debug_end_source_file): Mark parameter `lineno' with
4429 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
4430 `decl' and `type' with ATTRIBUTE_UNUSED.
4432 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
4433 when comparing against one.
4434 (assemble_variable): Mark parameter `top_level' with
4436 (assemble_external_libcall): Mark parameter `fun' with
4438 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
4441 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
4443 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
4444 Replace use of r5 with use of r19.
4446 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
4448 * config/v850/v850.c (compute_register_save_size): Allow for the
4449 fact that helper functions save all registers, not just those used
4452 Replace constant 31 with macro LINK_POINTER_REGNUM.
4454 * config/v850/v850.md: Use 'indirect_operand' rather than
4455 'memory_operand' for bit test/set/clear patterns.
4457 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
4459 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
4460 * varasm.c (assemble_start_function et al): Don't call
4461 ASM_GLOBALIZE_LABEL for weak symbols.
4463 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
4465 * cse.c (equiv_constant): Check for NULL return from
4466 gen_lowpart_if_possible().
4468 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
4470 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
4472 * collect2.c (main): Pass -EL/-EB through to the compiler.
4474 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4476 * expr.c (push_block): Handle targets where the stack grows
4477 to higher addresses, but args grow to lower addresses and
4478 ACCUMULATE_OUTGOING_ARGS is not defined.
4480 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
4482 * config/v850/v850.c (print_operand): Extend meaning
4483 of 'c' operands to support .vtinherit.
4485 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4487 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
4488 Added ATTRIBUTE_UNUSED to unused function arguments.
4489 (rc_reg_operand): New predicate.
4490 (c4x_rptb_insert): New function.
4491 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
4492 (c4x_optimization_options): New function.
4494 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
4495 (decrement_and_branch_on_count): New pattern.
4496 (rptb_top): Modified pattern to work with BCT optimization.
4498 * config/c4x/c4x.h (RC_REG): New register class.
4499 (rc_reg_operand): Define prototype.
4500 (IS_RC_REG): New macro.
4501 (IS_RC_OR_PSEUDO_REG): New macro.
4502 (IS_RC_OR_PSEUDO_REGNO): New macro.
4503 (OPTIMIZATION_OPTIONS): Define.
4505 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
4507 * collect2.c (extract_init_priority): No priority is 65535.
4509 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
4511 * Makefile.in (build_tooldir): new variable, same as old
4512 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
4513 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
4514 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
4516 * configure.in (gxx_include_dir): set default based on unlibsubdir
4517 * Makefile.in (tooldir): ditto
4518 (cccp.o, cpplib.o): use unlibsubdir implicitly through
4519 gxx_include_dir, includedir and tooldir
4520 (protoize.o, unprotoize.o): ditto
4522 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
4524 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
4526 * config/arm/thumb.c (thumb_override_options): Add warning about
4527 PIC code not being supported just yet.
4529 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
4531 * flow.c: Update comment.
4532 (notice_stack_pointer_modification): New static function.
4533 (record_volatile_insns): Use it.
4534 (mark_regs_live_at_end): Mark the stack pointer as alive
4535 at the end of the function if current_function_sp_is_unchanging
4537 (life_analysis_1): Set current_function_sp_is_unchanging.
4538 * function.c: Define it.
4539 (init_function_start): Initialize it.
4540 * output.h: Declare it.
4541 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
4542 the stack pointer as alive at the end of the function if
4543 current_function_sp_is_unchanging is set.
4544 * i386.c (ix86_epilogue): Optimize the restoring
4545 of the stack pointer.
4547 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
4549 * version.c: Bump for snapshot.
4551 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
4553 * c-pragma.c (handle_pragma_token): If passed a token instead
4554 of a tree, use that as the pack value.
4556 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
4558 * flow.c (find_basic_blocks_1): Fix prototype.
4560 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
4562 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
4563 (struct tree_decl): New fields no_check_memory_usage.
4564 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
4565 (init_attributes): Register it as a new attribute.
4566 (decl_attributes): Set flags on functions given that attribute.
4567 * c-decl.c (duplicate_decls): Merge new attribute.
4568 * expr.h (current_function_check_memory_usage): Declare new var.
4569 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
4570 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
4571 current_function_check_memory_usage.
4572 * function.h: Add field to struct function.
4573 * function.c (current_function_check_memory_usage): Define it.
4574 (push_function_context_to, pop_function_context_from): Save and
4576 (expand_function_start): Set it, based on global flag and function
4579 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
4580 check non-automatic variables, to permit detection of writes to
4581 read-only locations in embedded systems without memory management.
4582 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
4583 when emitting chkr_set_right_libfunc call, even if the argument is
4584 BLKmode or variable-sized; don't abort.
4586 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
4587 symbols in Pmode, not VOIDmode.
4589 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
4591 * cppexp.c: When forcing unsigned comparisons, cast both sides
4594 * cpphash.h: Move static declaration of hashtab[]...
4595 * cpphash.c: ...here.
4597 * cpplib.c: Cast difference of two pointers to size_t before
4598 comparing it to size_t. Cast signed to unsigned
4599 before comparing to size_t. (FIXME: struct argdata should use
4600 unsigned buffer sizes.)
4601 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
4602 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
4603 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
4604 size_t before comparison.
4606 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
4608 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
4609 (find_basic_blocks_1): Similarly.
4610 * output.h (find_basic_blocks): Fix prototype.
4611 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
4612 find_basic_blocks anymore.
4614 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
4616 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
4617 (sbitmap_free, sbitmap_vector_free): New macros.
4618 * output.h (rtl_dump_file): Declare.
4620 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
4622 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
4624 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4626 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
4628 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
4629 (divide): Remove unused variable `tmp'.
4630 (si_to_float): Cast numeric constant to (SItype) before comparing
4633 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
4635 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
4636 * gcc.c (add_preprocessor_option): Correct typo when allocating
4637 memory, sizeof() argument had one too many `*'.
4638 (add_assembler_option): Likewise.
4639 (add_linker_option): Likewise.
4640 * gcov.c (output_data): Likewise.
4641 * local-alloc.c (memref_used_between_p): Likewise.
4642 (update_equiv_regs): Likewise.
4643 * loop.c (strength_reduce): Likewise.
4644 * reg-stack.c (record_asm_reg_life): Likewise.
4645 (subst_asm_stack_reg): Likewise.
4646 * reorg.c (dbr_schedule): Likewise.
4648 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4650 * flow.c (life_analysis_1): Break out some functions.
4651 (find_basic_blocks_1): Likewise. Also move some variables out and
4653 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
4654 new static var nonlocal_label_list with it.
4655 (active_eh_region, nested_eh_region, label_value_list,
4656 nonlocal_label_list): New static variables.
4657 (make_edges, delete_unreachable_blocks, delete_block): New static
4658 functions, broken out of find_basic_blocks_1.
4659 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
4660 noop_move_p): New static functions, broken out of life_analysis_1.
4662 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
4664 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
4665 Take extra care for op0 now possibly being a subreg.
4666 (extract_bit_field): Likewise.
4667 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
4668 the reg to memory if there is no equal sized integral mode.
4669 * stor-layout.c (int_mode_for_mode): New function.
4670 * machmode.h: Prototype it.
4672 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
4674 * global.c (build_insn_chain): Verify no real insns exist past the
4675 end of the last basic block, then exit the loop.
4677 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
4679 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
4681 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
4683 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
4685 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
4687 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
4689 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
4691 * flow.c (find_basic_blocks): Correctly determine when a call
4692 is within an exception region.
4694 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
4696 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
4698 * cpplib.h: Protect from multiple inclusions.
4699 * cpplib.c: Fix minor formatting problems.
4701 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
4703 * jump.c (jump_optimize): Revert accidental patch.
4705 * Makefile.in (cpplib.o): Use unlibsubdir.
4707 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
4709 * loop.c (get_condition): Allow combine when either compare is
4712 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
4714 * version.c: Bump for snapshot.
4716 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
4718 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
4719 (init_lex): Initialize ridpointers[RID_BYREF].
4720 * c-lex.h (enum rid): Add RID_BYREF.
4721 * c-parse.gperf: Add RID_BYREF as a type qualifier.
4722 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
4723 (encode_type_qualifiers): Similarly
4724 * c-gperf.h: Rebuilt.
4726 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
4728 * c-common.c (type_for_mode): Only return TItype nodes when
4729 HOST_BITS_PER_WIDE_INT is >= 64 bits.
4730 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
4731 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
4732 (init_decl_processing): Only create TItype nodes when
4733 HOST_BITS_PER_WIDE_INT is >= 64 bits.
4734 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
4735 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
4737 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4739 * stmt.c (n_occurrences): New static function.
4740 (expand_asm_operands): Verify that all constrains match in the
4741 number of alternatives.
4742 Verify that '+' or '=' are at the beginning of an output constraint.
4743 Don't allow '&' for input operands.
4744 Verify that '%' isn't written for the last operand.
4745 * reload.c (find_reloads): Abort if an asm is found with invalid
4746 constraints; all possible problems ought to be checked for earlier.
4748 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4750 * flags.h (flag_branch_on_count_reg): Always declare
4751 * toplev.c (flag_branch_on_count_reg): Likewise.
4752 * toplev.c: Fix typos.
4754 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
4757 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
4759 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
4761 (find_basic_blocks_1): Add a nop to the end of a basic block when
4762 a trailing call insn does not have abnormal control flow.
4763 * gcse.c (pre_transpout): New variable.
4764 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
4765 (compute_pre_transpout): Calculate it.
4766 (compute_pre_ppinout): Use it to eliminate impossible placements
4767 due to abnormal control flow through calls.
4768 (compute_pre_data): Call compute_pre_transpout.
4770 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4772 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
4774 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
4776 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
4777 and matching define_insns): Tack on a `use' of the table label, so
4778 flow analysis will recognize a tablejump.
4780 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
4782 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
4783 always end basic blocks for abnormal edge reasons.
4785 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
4787 * config/i386/i386.h: Remove definition of
4788 HANDLE_PRAGMA_PACK_PUSH_POP.
4790 * config/i386/go32.h: Add definition of
4791 HANDLE_PRAGMA_PACK_PUSH_POP.
4793 * config/i386/win32.h: Add definition of
4794 HANDLE_PRAGMA_PACK_PUSH_POP.
4796 * config/i386/cygwin32.h: Add definition of
4797 HANDLE_PRAGMA_PACK_PUSH_POP.
4799 * c-pragma.c (insert_pack_attributes): Do not insert
4800 attributes unless #pragma pack(push,<n>) is in effect.
4802 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
4804 * expr.c (emit_group_store): Handle a PARALLEL destination.
4806 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
4808 * gcse.c (pre_insert_insn): When a call ends a bb, insert
4809 the new insns before the argument regs are loaded.
4811 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4813 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
4814 (c-parse.gperf): Update comments describing invocation flags.
4815 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
4817 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
4819 * reload1.c (reload): Call free before clobbering the memory
4820 locations or constants pointers.
4822 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4824 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
4825 for efficiency by checking whether we need to modify the current
4826 stack permission at all.
4827 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
4828 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
4829 __enable_execute_stack libcall here too if
4830 TRANSFER_FROM_TRAMPOLINE is defined.
4831 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
4834 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
4836 * Makefile.in (DRIVER_DEFINES): Remove last change.
4838 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4840 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
4841 insns we're going to copy.
4842 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
4844 * loop.c (count_one_set): Add prototype.
4846 * caller-save.c (restore_referenced_regs): Lose mode argument.
4847 (insert_save): Lose mode argument.
4848 (insert_restore): Lose mode argument.
4849 (insert_one_insn): Lose mode argument.
4850 (save_call_clobbered_regs): Lose mode argument.
4851 (setup_save_areas): Take no argument and return void. All callers
4853 Don't verify validity of memory addresses.
4854 * reload.h (setup_save_ares): Adjust prototype.
4855 (save_call_clobbered_regs): Likewise.
4856 * reload1.c (delete_caller_save_insns): New function.
4857 (caller_save_spill_class): Delete variable.
4858 (caller_save_group_size): Delete variable.
4859 (reload): Call setup_save_areas and save_call_clobbered_regs
4860 in the main loop, before calling calculate_needs_all_insns.
4861 Don't call save_call_clobbered_regs after the loop.
4862 Call delete_caller_save_insns at the end of an iteration if
4864 Delete code to manage caller_save_spill_class.
4865 Emit the final note before setting reload_first_uid.
4866 Simplify test that determines whether reload_as_needed gets run.
4867 (calculate_needs): Delete code to manage caller_save_spill_class.
4869 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
4871 * collect2.c (main): Initialize ld_file_name.
4873 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
4875 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
4876 check for flag_function_sections.
4878 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4880 * cse.c (insert_regs): Fix bug in Sep 24 change.
4882 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4884 * flags.h (flag_dump_unnumbered): Declare.
4885 * toplev.c (flag_dump_unnumbered): Don't declare.
4886 * print-rtl.c (flags.h): Include.
4887 (print_rtl_single): Add return value.
4888 * rtl.h (print_rtl_single): Update declaration.
4889 * flow.c (flag_dump_unnumbered): Don't declare.
4890 (print_rtl_with_bb): Use return value of print_rtl_single.
4892 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4894 * loop.c (count_one_set): New static function, broken out of
4896 (count_loop_regs_set): Call it.
4897 * global.c (mark_reg_store): Handle clobbers here by not calling
4899 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
4900 is in fact a clobber.
4901 * integrate.c (process_reg_param): New function, broken out of
4902 expand_inline_function.
4903 (expand_inline_function): Call it.
4906 * i386.md (addsidi3_1): Delete unused variable temp.
4907 (addsidi3_2): Likewise.
4908 (clstrstrsi): Delete unused variable addr1.
4910 * rtl.h: Don't declare any functions also declared in recog.h.
4912 * Makefile.in (stupid.o): Update dependencies.
4913 (global.o): Likewise.
4915 * global.c: Include reload.h
4916 (reg_becomes_live): New function.
4917 (reg_dies): New function.
4918 (build_insn_chain): New function.
4919 (global_alloc): Call build_insn_chain before calling reload.
4921 * reload.h (struct needs): New structure definition.
4922 (struct insn_chain): Likewise.
4923 (reload_insn_chain): Declare variable.
4924 (new_insn_chain): Declare function.
4927 * reload1.c (reload_startobj): New variable.
4928 (reload_insn_chain): New variable.
4929 (unused_insn_chains): New variable.
4930 (new_insn_chain): New function.
4931 (init_reload): Initialize reload_startobj, not reload_firstobj.
4932 (reload): Initialize reload_firstobj.
4933 Before returning, free everything on the reload_obstack.
4935 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
4936 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
4937 current_chain): New variables.
4938 (reg_where_born): Delete variable.
4939 (REG_WHERE_BORN): New macro.
4940 (find_clobbered_regs): New function.
4941 (stupid_life_analysis): Don't allocate/free reg_where_born.
4942 Allocate and free reg_where_born_exact, reg_where_born_clobber,
4943 reg_where_dead_chain.
4944 Use REG_WHERE_BORN instead of reg_where_born.
4945 While processing the insns, build the reload_insn_chain with
4946 information about register lifetimes.
4947 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
4948 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
4950 Compute and information about birth and death of pseudo registers in
4951 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
4952 Delete code to set elements of reg_where_born.
4954 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4956 * tree.def (GOTO_EXPR): Modified documentation.
4957 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
4960 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
4962 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
4963 loop_final_value, loop_comparison_code): No longer static.
4964 (unroll_loop): Delete loop_start_value update.
4965 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
4966 loop_final_value, loop_comparison_code): Extern.
4967 (loop_start_value): Delete extern.
4968 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
4969 loop_comparison_value, loop_comparison_code): Delete.
4970 (loop_optimize): Remove initialization for deleted variables.
4971 (strength_reduce): Delete analyze_loop_iterations call. Only call
4972 insert_bct if flag_branch_count_on_reg set.
4973 (analyze_loop_iterations): Delete.
4974 (insert_bct): Remove iteration count calculation. Move checks for
4975 viable BCT optimization to here. Obtain iteration count from
4976 loop_iterations and correct for unrolling. Check for enough
4977 iteration to be beneficial. Comment out runtime iteration count
4979 (insert_bct): Print iteration count in dump file. Remove
4980 loop_var_mode and use word_mode directly.
4982 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
4983 * rs6000.c (rs6000_override_options): Use it.
4984 (optimization_options): Enable use of flag_branch_on_count_reg.
4985 * rs6000.md (define_function_unit): Describe 604e.
4987 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4989 * loop.c (move_movables): Corrected threshold calculation for
4990 moved_once registers.
4992 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4994 * loop.c (combine_givs_p): Fix test for identical givs.
4996 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
4998 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
4999 call abort if the function is already defined.
5001 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
5003 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
5004 truncation is not a no-op.
5006 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
5008 * version.c: Bump for snapshot.
5010 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
5012 * version.c: Bump for snapshot.
5014 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
5016 * expmed.c (expand_divmod): Don't widen for computing remainder
5017 if we seem to have a divmod pattern for needed mode.
5019 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5021 * cpplib.c (macroexpand): Correct off-by-one error in handling
5024 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
5026 * combine.c (expand_field_assignment): Don't do bitwise operations
5027 on MODE_FLOAT; pun to MODE_INT if possible.
5029 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
5030 scott snyder <snyder@d0sgif.fnal.gov>
5032 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
5033 linker. Recognize mangled names in quotes.
5035 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5037 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
5038 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
5039 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
5040 (lshrsi3_extend, lshrsi3_extend2): Ditto.
5042 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5044 * function.c (purge_addressof_1): If trying to take a sub-word
5045 integral piece of a floating point mode, put it on the stack.
5047 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
5049 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
5051 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5053 * PROJECTS: Remove template friends.
5055 * collect2.c (sort_ids): Remove unused variable.
5057 * tm.texi (MATH_LIBRARY): Document.
5058 (NEED_MATH_LIBRARY): Remove.
5060 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
5061 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
5063 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
5065 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
5066 last_end to 0x7fffffff.
5068 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5070 * function.c (purge_addressof_1): Do not perform endianness
5071 corrections on bitpos, who we call will do it for us.
5073 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
5075 * h8300.c (WORD_REG_USED): Fix typo.
5076 (initial_offset): Use WORD_REG_USED.
5078 * h8300.c (handle_pragma): Fix typo.
5080 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5082 * caller-save.c (insert_save_restore): Break this function up
5083 into new functions insert_restore, insert_save and insert_one_insn.
5084 All callers changed.
5085 (insert_restore): New function, mostly broken out of
5086 insert_save_restore.
5087 (insert_save): Likewise.
5088 (insert_one_insn): Likewise.
5089 (restore_referenced_regs): New argument BLOCK. All callers changed.
5090 (save_call_clobbered_regs): Don't keep track of basic block boundaries
5091 in this function, do it in insert_one_insn instead.
5093 * reload1.c (reload): Break out some more pieces into separate
5095 (dump_needs): New function, broken out of reload.
5096 (set_initial_elim_offsets): Likewise.
5097 (init_elim_table): Likewise.
5098 (update_eliminables): Likewise.
5100 * global.c (global_alloc): Delete code to manage the scratch_list.
5101 * local-alloc.c (qty_scratch_rtx): Delete.
5102 (scratch_block): Delete.
5103 (scratch_list): Delete.
5104 (scratch_list_length): Delete.
5105 (scratch_index): Delete.
5106 (alloc_qty_for_scratch): Delete.
5107 (local-alloc): Update initialization of max_qty.
5108 Delete code to manage the scratch list.
5109 Delete code to allocate/initialize qty_scratch_rtx.
5110 (block_alloc): Don't allocate quantities for scratches.
5111 Delete code to manage the scratch list.
5112 * regs.h (scratch_list): Delete declaration.
5113 (scratch_block): Delete declaration.
5114 (scratch_list_length): Delete declaration.
5115 * reload1.c (reload): Delete code to manage the scratch list.
5116 (spill_hard_reg): Likewise.
5117 (mark_scratch_live): Delete.
5119 * recog.c (alter_subreg): Delete declaration.
5121 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
5123 * Makefile.in (cccp.o): Fix typo in last patch.
5125 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5127 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
5128 * config/sh/lib1funcs.asm (___set_fpscr): Add.
5130 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
5132 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
5133 NULL_RTX as an argument.
5135 * Makefile.in (unlibsubdir): Define.
5136 (DRIVER_DEFINES): Use unlibsubdir.
5137 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
5138 (stmp-fixinc): Similarly.
5140 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
5142 * regmove.c (regmove_optimize): Add variable old_max_uid.
5143 At the end of the function, update basic_block_end.
5145 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5147 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
5148 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
5151 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
5153 * config/arm/arm.c: Improve interworking support.
5155 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5157 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
5158 copied from reload_out[r] .
5160 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
5162 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
5163 with more than three size ranges.
5165 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
5167 * rtl.c (mode_name): Add a null string at the end of the array.
5168 (mode_wider_mode): Change type to unsigned char.
5169 (mode_mask_array): New variable.
5170 (init_rtl): Update for mode_wider_mode type change.
5172 * rtl.h (mode_wider_mode): Change type to unsigned char.
5173 (mode_mask_array): Declare.
5174 (GET_MODE_MASK): Use mode_mask_array.
5176 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
5178 * calls.c (expand_call) : Encapsulate code into
5179 copy_blkmode_from_reg.
5180 * expr.c (copy_blkmode_from_reg): New function.
5181 * expr.h (copy_blkmode_from_reg): New function.
5182 * integrate.c (function_cannot_inline_p): We can inline
5184 (expand_inline_function): Use copy_blkmode_from_reg
5185 if needed. Avoid creating BLKmode REGs.
5186 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
5189 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
5191 * config/v850/v850.c: Add function prototypes.
5192 Add support for v850 special data areas.
5194 * config/v850/v850.h: Add support for v850 special data areas.
5196 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
5197 HANDLE_PRAGMA_PACK_PUSH_POP.
5198 (push_alignment): New function: Cache an alignment requested
5199 by a #pragma pack(push,<n>).
5200 (pop_alignment): New function: Pop an alignment from the
5202 (insert_pack_attributes): New function: Generate __packed__
5203 and __aligned__ attributes for new decls whilst a #pragma pack
5205 (add_weak): New function: Cache a #pragma weak directive.
5206 (handle_pragma_token): Document calling conventions. Add
5207 support for #pragma pack(push,<n>) and #pragma pack (pop).
5209 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
5210 are defined enable HANDLE_PRAGMA_PACK.
5211 Move 'struct weak_syms' here (from varasm.c).
5212 Add pragma states for push and pop pragmas.
5214 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
5217 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
5218 HANDLE_GENERIC_PRAGMAS.
5220 * varasm.c: Move definition of 'struct weak_syms' into
5222 (handle_pragma_weak): Deleted.
5224 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
5226 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
5228 * c-decl.c (start_function): Add invocation of
5229 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
5231 * tm.texi: Remove description of non-existant macro
5232 SET_DEFAULT_SECTION_NAME.
5234 (HANDLE_SYSV_PRAGMA): Document.
5235 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
5237 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
5239 * config.sub: Recognize i[34567]86-pc-udk as new target.
5240 * configure.in: Likewise.
5241 * config/i386/t-udk: New file.
5242 * config/i386/udk.h: New file.
5244 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
5246 * reorg.c (check_annul_list_true_false): Remove unused variables.
5247 (steal_delay_list_from_target): Add missing "used_annul" variable.
5248 (try_merge_delay_insns): Close out half formed comment.
5250 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5252 * cpplib.c (macroexpand): If arg->raw_before or
5253 arg->raw_after, remove any no-reexpansion escape at the
5254 beginning of the pasted token. Correct handling of whitespace
5255 markers and no-reexpand markers at the end if arg->raw_after.
5257 * toplev.c (documented_lang_options): Recognize -include,
5258 -imacros, -iwithprefix, -iwithprefixbefore.
5259 * cpplib.c (cpp_start_read): Process -imacros and -include
5260 switches at the same time and in command-line order, after
5261 initializing the dependency-output code. Emit properly nested
5262 #line directives for them. Emit a #line for the main file
5263 before processing these switches, and don't do it again
5266 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
5268 * function.c (purge_addressof_1): Use bitfield manipulation
5269 routines to handle mem mode < reg mode.
5271 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
5273 * reorg.c (try_merge_delay_insns): Account for resources referenced
5274 in each instruction in INSN's delay list before trying to eliminate
5275 useless instructions. Similarly when looking at a trial insn's delay
5278 * reorg.c (check_annul_list_true_false): New function.
5279 (steal_delay_list_from_{target,fallthrough}): Call it and also
5280 refine tests for when we may annul if already filled a slot.
5281 (fill_slots_from_thread): Likewise.
5282 (delete_from_delay_slot): Return newly-created thread.
5283 (try_merge_delay_isns): Use its new return value.
5285 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
5287 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
5288 used to compute a giv or as some other non-counting use.
5290 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5292 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
5293 * local-alloc.c (find_free_reg): Use it.
5294 * global.c (find_reg): Likewise.
5295 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
5297 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
5298 * caller-save.c (init_caller_save): Use it.
5299 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
5301 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
5303 * configure.in: Add --enable-cpplib option which uses cpplib
5304 for cpp, but doesn't link cpplib into cc1. Make help text
5305 capitalization consistent.
5306 * configure: Rebuilt.
5308 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
5310 * function.c (gen_mem_addressof): If the address REG is
5311 REG_USERVAR_P make the new REG be so also.
5312 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
5313 in an attempt to clarify slightly.
5315 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
5317 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
5318 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
5320 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
5322 * toplev.c: Fix last patch.
5324 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
5326 * loop.c (get_condition): Fix typo in May 9 change.
5328 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5330 * invoke.texi (-fexceptions): Merge 2 different descriptions.
5332 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5334 * toplev.c (documented_lang_options): Spelling corrections.
5336 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5338 * configure.in: new flags --with-ld and --with-as, equivalent
5339 to setting LD and AS environment variables. Test whether
5340 specified arguments are GNU commands, and report them with
5341 checking messages. Use the specified AS for configure
5344 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
5346 * gcc.c (find_a_file): when looking for `as' and `ld', return
5347 the DEFAULT program if it exists
5348 * collect2.c (main): use DEFAULT_LINKER if it exists
5350 * gcc.c (find_a_file): the test for existence of a full
5351 pathname was reversed
5353 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
5355 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
5356 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
5358 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
5360 * tree.h (TYPE_BINFO): Document.
5362 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
5364 * i386-coff.h (dbxcoff.h): Added.
5366 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
5368 * toplev.c: fix bad patch around flag_data_sections.
5370 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
5372 * reload1.c (reload): Use reload_address_index_reg_class and
5373 reload_address_base_reg_class when setting
5374 caller_save_spill_class. (Patch generated by Jim Wilson:
5377 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
5379 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
5380 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
5381 * expr.c (store_field): Add alias_set parameter. Set the
5382 MEM_ALIAS_SET accordingly, if the target is a MEM.
5383 (expand_assignment): Use it.
5384 (store_constructor_field): Pass 0.
5385 (expand_expr): Likewise.
5387 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
5389 * flags.h: Add flag_data_sections.
5390 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
5391 (compile_file): Error if flag_data_sections not supported.
5392 * varasm.c (assemble_variable): Handle flag_data_sections.
5393 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
5394 * config/mips/elf.h: Likewise.
5395 * config/mips/elf64.h: Likewise.
5396 * invoke.texi: Describe -fdata-sections.
5398 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
5400 * invoke.texi (-ffloat-store): Clarify that this option
5401 does not affect intermediate results -- only variables.
5403 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
5405 * cpp.texi: Update for Fortran usage from Craig.
5407 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
5409 * rs6000.c (function_arg_boundary): Revert accidental change on
5412 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
5414 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
5415 (output_mi_thunk): Declare.
5417 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
5418 (output_function_profiler): Use r12 for temp, instead of r11 so
5419 that we preserve the static chain register.
5421 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
5423 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
5425 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5427 * sh.c (gen_shl_sext): Fix case 5.
5429 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5431 * reload1.c (reload_combine): Re-add line that got accidentally lost.
5433 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5435 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
5436 accessing variables until they are initialized via va_arg().
5438 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5440 * reload1.c (reload_combine): Initialize set before using.
5442 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
5444 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
5447 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
5449 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
5450 operand3 with mask before using it. Patch provided by Jim Wilson.
5452 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5454 * config/sparc/sparc.c (function_value): Perform the equivalent of
5455 PROMOTE_MODE for ARCH64.
5456 (eligible_for_epilogue_delay): Allow DImode operations in delay
5457 slot of a return for ARCH64.
5459 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5461 * sh.md (sqrtsf2): Fix mode of sqrt.
5463 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5465 * reload1.c (choose_reload_regs): Also try inheritance when
5466 reload_in is a stack slot of a pseudo, even if we already got a
5469 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5471 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
5472 (reload_cse_regs): New function body: call reload_cse_regs_1,
5473 reload_combine, reload_cse_move2add.
5474 When doing expensive_optimizations, call reload_cse_regs_1 a
5475 second time after reload_cse_move2add.
5476 (reload_combine, reload_combine_note_store): New functions.
5477 (reload_combine_note_use): New function.
5478 (reload_cse_move2add, move2add_note_store): New functions.
5480 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5482 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
5483 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
5485 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
5486 more than 3 such reloads.
5488 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
5489 RELOAD_FOR_X_ADDR_ADDR reload.
5491 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5493 * expr.c (store_constructor): When initializing a field that is smaller
5494 than a word, at the start of a word, try to widen it to a full word.
5496 * cse.c (cse_insn): When we are about to change a register,
5497 remove any invalid references to it.
5499 (remove_invalid_subreg_refs): New function.
5500 (mention_regs): Special treatment for SUBREGs.
5501 (insert_regs): Don't strip SUBREG for call to mention_regs.
5502 Check if reg_tick needs to be bumped up before that call.
5503 (lookup_as_function): Try to match known word_mode constants when
5504 looking for a norrower constant.
5505 (canon_hash): Special treatment for SUBREGs.
5507 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5509 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
5510 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
5511 defined, emit libcall to __enable_execute_stack. Also fix opcodes
5512 and offsets in actual stack trampoline code so they match the
5513 commentary and actually work.
5515 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5517 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
5519 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
5520 tmake_file. Set extra_parts to needed crt objects.
5521 * configure: Rebuilt.
5522 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
5523 (TARGET_DEFAULT): Set if default is v9 or ultra.
5524 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
5525 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
5526 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
5527 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
5528 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
5529 (TARGET_VERSION): Define.
5530 (MULTILIB_DEFAULT): Define.
5531 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
5532 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
5533 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
5535 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
5536 * config/sparc/sparc.c (sparc_override_options): If arch and
5537 pointer size disagree, emit diagnostic and fix it up. If
5538 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
5539 V8PLUS in 64-bit mode.
5540 * config/sparc/t-linux64: New file.
5541 * config/sparc/t-sol2-64: New file.
5542 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
5543 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
5544 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
5545 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
5546 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
5547 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
5549 (STARTFILE_SPEC): Set approriately based upon those.
5550 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
5551 disposition of DEFAULT_ARCH32_P.
5552 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
5553 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
5554 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
5555 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
5556 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
5558 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
5560 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
5562 * rtl.h (init_virtual_regs): New function.
5563 * emit-rtl.c (init_virtual_regs): Define.
5564 (insn_emit): Use it.
5565 * integrate.c (save_for_inline_copying): Likewise.
5567 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
5569 * config/arm/thumb.h: The following patches were made by Jim Wilson:
5570 (enum reg_class): Add NONARG_LO_REGS support.
5571 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
5572 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
5573 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
5574 completes. Re-enable HImode REG+OFFSET addresses.
5575 (LEGITIMIZE_RELOAD_ADDRESS): Define.
5577 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
5579 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
5581 * alpha.c (get_aligned_mem): Revert Sep 20 change.
5582 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
5583 (alpha_align_insns): Properly calculate initial offset wrt max_align.
5585 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
5587 * arm.c (find_barrier): Revert change of Apr 23. Handle table
5588 jumps as a single entity, taking into account the size of the
5591 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5593 * tree.def (SWITCH_EXPR): New tree node definition.
5595 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
5597 * version.c: Bump for snapshot.
5599 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
5601 * version.c: Bump for snapshot.
5603 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
5605 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
5608 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
5610 * Revert this patch.
5611 * reload.c (find_reloads): Do not replace a pseudo with
5612 (MEM (reg_equiv_addr)) in the initializing insn for the
5615 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
5617 * final.c (final_scan_insn): Disable tracking CC across branches.
5619 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5621 * expr.h (eh_rtime_match_libfunc): New extern declaration.
5622 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
5623 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
5624 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
5625 NULL. Only include <stdio.h> if inhibit_libc is not defined.
5627 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
5629 * toplev.c (rest_of_compilation): Skip compiling anything with
5630 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
5632 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
5634 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
5635 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
5636 use in_libcall_block.
5637 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
5638 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
5641 Mon Sep 21 14:02:23 1998
5643 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
5644 typo in no-fancy-math-387 description.
5646 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
5648 * version.c: Bump for snapshot.
5650 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
5652 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
5654 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
5656 * i386.h: (TARGET_SWITCHES) Add description fields for flags
5657 documented in install.texi.
5658 (TARGET_OPTIONS) Likewise.
5660 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
5662 * version.c: Bump for snapshot.
5664 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
5666 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
5667 * cccp.c (main): Likewise.
5669 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
5670 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
5673 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
5675 * Makefile.in (LIBS): Link in libiberty.a.
5676 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
5678 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
5680 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
5681 it to update bb boundaries. Update caller.
5682 * function.c (reposition_prologue_and_epilogue_notes): Update
5683 bb boundaries wrt the moved note.
5685 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
5687 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
5689 * configure: Regenerate.
5691 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
5693 * alpha.c (alpha_sr_alias_set): New variable.
5694 (override_options): Set it.
5695 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
5696 (mode_mask_operand): Fix signed-unsigned comparision warning.
5697 (alpha_expand_block_move): Likewise.
5698 (print_operand): Likewise.
5699 (get_aligned_mem): Use change_address.
5700 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
5701 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
5702 (alphaev4_next_nop, alphaev5_next_nop): New functions.
5703 (alpha_align_insns): Remade from old alphaev5_align_insns
5704 to handle multiple processors.
5705 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
5706 * output.h (label_to_alignment): Prototype.
5708 * tree.c (new_alias_set): New function.
5709 * tree.h (new_alias_set): Declare it.
5710 * c-common.c (c_get_alias_set): Use it.
5712 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
5714 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
5715 to an ABS expr, convert an unsigned input to signed.
5717 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
5719 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
5721 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5723 * configure.in: Add support for c4x targets.
5724 * configure: Rebuilt.
5726 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
5728 * combine.c (distribute_notes): If an insn is a cc0 user, only
5729 delete it if we can also delete the cc0 setter.
5731 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
5733 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
5734 (invert_truthvalue): Enable truthvalue inversion for
5735 floating-point operands if -ffast-math.
5737 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
5739 * configure.in: Disable collect2 for nextstep. Instead use
5741 * configure: Rebuilt.
5742 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
5743 (ENDFILE_SPEC): Define.
5744 (OBJECT_FORMAT_MACHO): Define.
5745 (EH_FRAME_SECTION_ASM_OP): Define.
5746 * crtstuff.c: Handle MACHO.
5748 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
5750 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
5752 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
5754 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
5755 (_fpadd_parts): Get sign right for 0.
5757 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5759 * ginclude/varargs.h: Add support for C4x target.
5760 * ginclude/stdargs.h: Likewise.
5762 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
5764 * alpha.c (alpha_return_addr): SET should be VOIDmode.
5765 (alpha_emit_set_long_const): Rewrite to be callable from reload
5767 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
5768 * alpha.md (movdi): Likewise.
5770 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
5772 * arm.c (add_constant): New parameter address_only, change caller.
5773 Set it non-zero if taking the address of an item in the pool.
5774 (arm_reorg): Handle cases where we need the address of an item in
5777 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
5779 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
5780 memory addresses that are not in standard canonical form.
5782 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
5784 * README.C4X: New file with information about the c4x ports.
5785 * ginclude/va-c4x.h: New file for c4x varargs support.
5786 * config/c4x: New directory with c4x port files.
5788 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
5790 * reload.c (find_reloads): Do not replace a pseudo with
5791 (MEM (reg_equiv_addr)) in the initializing insn for the
5794 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
5796 * toplev.c (rest_of_compilation): Set bct_p on second call to
5798 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
5800 (strength_reduce): Only call analyze_loop_iterations and
5801 insert_bct if bct_p set.
5802 (check_dbra_loop): Fix typo.
5803 (insert_bct): Use word_mode instead of SImode.
5804 (instrument_loop_bct): Likewise. Do not delete iteration count
5805 condition code generation insn. Initialize iteration count before
5807 * rtl.h (loop_optimize): Update prototype.
5809 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
5810 not doubleword aligned.
5812 * rs6000.c (optimization_options): New function.
5813 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
5814 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
5815 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
5816 first; cr1 can be used for FP record condition insns.
5818 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
5820 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
5823 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
5826 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
5828 (block_move_call): New function: Call a library routine to copy a
5830 (m32r_expand_block_move): New function: Expand a "movstrsi"
5831 pattern into a sequence of insns.
5832 (m32r_output_block_move): New function: Expand a
5833 "movstrsi_internal" pattern into a sequence of assembler opcodes.
5834 (m32r_block_immediate_operand): New function: Return true if the
5835 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
5837 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5839 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
5841 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
5843 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5845 * regmove.c (copy_src_to_dest): Check that modes match.
5847 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
5849 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
5851 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
5853 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
5854 narrower than FLOAT_REGS.
5856 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5858 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
5860 * Makefile.in (old_gxx_include_dir): removed
5862 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
5864 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
5867 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
5868 (sh_handle_pragma): Change function arguments to match new
5869 specification for HANDLE_PRAGMA.
5871 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5873 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
5875 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
5876 When generating output, initialize missing struct member to zero.
5878 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5880 * regmove.c (copy_src_to_dest): Don't copy if that requires
5881 (a) new register(s).
5883 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5885 * global.c (reg_allocno): Now static.
5886 * reload1.c (reg_allocno): Delete declaration.
5887 (order_regs_for_reload): Take no arguments. Don't treat regs
5888 allocated by global differently than those allocated by local-alloc.
5890 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
5892 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
5893 condition, fix format strings.
5894 (output_function_epilogue): Likewise.
5896 * m68k/m68k.c: Don't include <stdlib.h> directly.
5898 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
5900 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
5901 mem_first_set, mem_last_set; because 0 can be a CUID.
5902 (oprs_unchanged_p): Use new definition.
5903 (record_last_reg_set_info): Likewise.
5904 (record_last_mem_set_info): Likewise.
5905 (compute_hash_table): Likewise.
5907 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
5909 * rs6000.c (output_epilogue): Handle Chill.
5911 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
5912 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
5914 * combine.c (make_extraction): If no mode is specified for
5915 an operand of insv, extv, or extzv, default it to word_mode.
5916 (simplify_comparison): Similarly.
5917 * expmed.c (store_bit_field): Similarly.
5918 (extract_bit_field): Similarly.
5919 * function.c (fixup_var_regs_1): Similarly.
5920 * recog.c (validate_replace_rtx_1): Similarly.
5921 * mips.md (extv, extzv, insv expanders): Default modes for most
5922 operands. Handle TARGET_64BIT.
5923 (movdi_uld, movdi_usd): New patterns.
5925 * pa.c (emit_move_sequence): Do not replace a pseudo with its
5926 equivalent memory location unless we have been provided a scratch
5927 register. Similarly do not call find_replacement unless a
5928 scratch register has been provided.
5930 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5932 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
5935 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
5937 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
5938 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
5939 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
5940 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
5941 * c-decl.c (init_decl_processing): Update accordingly.
5942 * expr.c (expand_builtin): Likewise.
5944 * rtl.h (global_rtl): Add cfa entry.
5945 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
5946 (LAST_VIRTUAL_REGISTER): Update.
5947 * emit-rtl.c (global_rtl): Add cfa entry.
5948 (init_emit): Initialize it.
5949 * function.c (cfa_offset): New.
5950 (instantiate_virtual_regs): Initialize it.
5951 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
5952 (expand_function_end): Call expand_eh_return.
5953 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
5955 * except.c (current_function_eh_stub_label): Kill.
5956 (current_function_eh_old_stub_label): Likwise; update all references.
5957 (expand_builtin_set_return_addr_reg): Kill.
5958 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
5959 (expand_builtin_set_eh_regs): Kill.
5960 (eh_regs): Produce a third reg for the actual handler address.
5961 (eh_return_context, eh_return_stack_adjust): New.
5962 (eh_return_handler, eh_return_stub_label): New.
5963 (init_eh_for_function): Initialize them.
5964 (expand_builtin_eh_return, expand_eh_return): New.
5965 * except.h: Update prototypes.
5966 * flow.c (find_basic_blocks_1): Update references to the stub label.
5967 * function.h (struct function): Kill stub label elements.
5969 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
5970 register number is one that would be in the previous window.
5971 Provide a dummy definition for non-windowed targets.
5972 (get_reg_addr): New function.
5973 (get_reg, put_reg, copy_reg): Use it.
5974 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
5975 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
5977 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
5978 (alpha_init_expanders): Initialize it.
5979 (alpha_expand_epilogue): Use it.
5980 * alpha.h: Declare it.
5981 * alpha.md (eh_epilogue): New.
5983 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
5984 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
5986 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
5988 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
5991 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5993 * except.h (struct eh_entry): Add false_label field.
5994 (end_catch_handler): Add prototype.
5995 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
5996 (start_catch_handler): When using old style exceptions, issue
5997 runtime typematch code before continuing with the handler.
5998 (end_catch_handler): New function, generates label after handler
5999 if needed by older style exceptions.
6000 (expand_start_all_catch): No need to check for new style exceptions.
6001 (output_exception_table_entry): Only output the first handler label
6002 for old style exceptions.
6003 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
6004 mechanism into one function, if a runtime matcher is provided.
6006 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
6008 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
6010 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
6012 * integrate.c (copy_decl_list): Fix typo.
6014 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6016 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
6019 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
6021 * version.c: Bump for snapshot.
6023 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
6025 * version.c: Bump for snapshot.
6027 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
6029 * version.c: Bump for snapshot.
6031 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6033 * invoke.texi (C Dialect Options): Put back missing @end itemize.
6035 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
6037 * configure.in: remove usage of `!' to negate the result of a
6038 command; some common shells do not support it
6040 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6042 * configure.in: in sparc9-sol2 config, use 'if test' not
6044 * configure: Rebuilt.
6046 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
6048 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
6049 (CPP_CPU_DEFAULT_SPEC): Likewise.
6050 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
6051 for arch64 libfuncs.
6053 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
6056 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6058 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
6060 * collect2.c: Don't declare `sys_siglist' here.
6061 (my_strsignal): Prototype and define new function. Use it in
6062 place of `sys_siglist' hacks.
6064 * mips_tfile.c: Likewise.
6066 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
6067 (GCC_NEED_DECLARATIONS): Likewise.
6069 * system.h (strsignal): Prototype it, if necessary.
6070 (sys_siglist): Declare it, if necessary.
6072 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6074 * loop.c (move_movables): While removing insn sequences, preserve
6075 the next pointer of the most recently deleted insn when we skip
6078 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
6080 * objc/config-lang.in: Do not output the name of the selected
6081 thread file when building the front-end. The Makefile for the
6082 runtime library will do this.
6084 * objc/Make-lang.in: Do not build the runtime library or install
6085 the Objective C header files. The Makefile for the runtime
6086 library will do this.
6088 * objc/Makefile.in (all.indirect): Only build the front-end.
6089 (compiler): Rename to `frontend'.
6090 (obj-runtime): Remove target.
6091 (copy-headers): Likewise.
6092 (clean): No need to remove `libobjc.a' any longer.
6094 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
6096 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
6097 supported with -mcpu=xxx.
6099 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6101 * flow.c (mark_set_1): Recognize multi-register structure return
6102 values in CALL insns.
6103 (mark_used_regs): Likewise.
6104 (count_reg_sets_1): Likewise.
6105 (count_reg_references): Likewise.
6106 * rtlanal.c (note_stores): Likewise.
6107 (reg_overlap_mentioned_p): Likewise.
6108 * haifa-sched.c (check_live_1): Likewise.
6109 (update_live_1): Likewise.
6110 (sched_analyze_1): Likewise.
6111 (sched_note_set): Likewise.
6112 (birthing_insn_p): Likewise.
6113 (attach_deaths): Likewise.
6115 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
6118 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
6120 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
6122 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6124 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
6126 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6128 * configure.in: Add check for GAS subsection -1 support.
6129 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
6130 * configure config.in: Rebuilt.
6131 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
6132 SImode is subsection -1 works, else use DImode.
6133 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
6134 subsection -1 works.
6135 * config/sparc/sparc.c (sparc_output_addr_vec,
6136 sparc_output_addr_diff_vec): Use them if defined.
6138 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
6140 * tree.h (DECL_ORIGIN): New macro.
6141 * integrate.c (copy_and_set_decl_abstract_origin): New function.
6142 (copy_decl_list): Use it.
6143 (integrate_parm_decls): Likewise.
6144 (integrate_decl_tree): Likewise.
6145 * dwarf2out.c (decl_ultimate_origin): Simplify.
6146 * dwarfout.c (decl_ultimate_origin): Likewise.
6147 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
6148 (pushdecl): Likewise.
6150 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
6152 * config/rs6000/rs6000.c (output_epilog): Add Java support.
6154 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
6156 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
6158 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
6160 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
6161 empty or has a single entry.
6163 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
6164 before calling reg_to_stack.
6166 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
6168 * alpha.c (alphaev5_insn_pipe): Abort on default case.
6169 (alphaev5_next_group): Swallow CLOBBERs and USEs.
6171 * c-tree.h (warn_long_long): Declare it.
6173 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
6175 * emit-rtl.c (gen_lowpart_common): Disable optimization of
6176 initialized float-int union if the value is a NaN.
6178 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
6180 * c-lex.c (real_yylex): Don't warn about long long constants if
6181 we're allowing long long
6183 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
6185 * except.h (current_function_eh_stub_label): Declare.
6186 (current_function_eh_old_stub_label): Declare.
6187 * function.h (struct function): New members eh_stub_label and
6189 * except.c (current_function_eh_stub_label): New variable.
6190 (current_function_eh_old_stub_label): New variable.
6191 (init_eh_for_function): Clear them.
6192 (save_eh_status): Save them.
6193 (restore_eh_status): Restore them.
6194 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
6195 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
6196 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
6197 make an edge from the block that contains it to the block starting
6198 with the label if this label is one of the eh stub labels.
6199 If eh stub labels exist, show they are reachable from the last block
6202 * reload1.c (reload): Break out several subroutines and make some
6204 (calculate_needs_all_insns): New function, broken out of reload.
6205 (calculate_needs): Likewise.
6206 (find_reload_regs): Likewise.
6207 (find_group): Likewise.
6208 (find_tworeg_group): Likewise.
6209 (something_needs_reloads): New global variable, formerly in reload.
6210 (something_needs_elimination): Likewise.
6211 (caller_save_spill_class): Likewise.
6212 (caller_save_group_size): Likewise.
6213 (max_needs): Likewise.
6214 (group_size): Likewise.
6215 (max_groups): Likewise.
6216 (max_nongroups): Likewise.
6217 (group_mode): Likewise.
6218 (max_needs_insn): Likewise.
6219 (max_groups_insn): Likewise.
6220 (max_nongroups_insn): Likewise.
6221 (failure): Likewise.
6223 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
6225 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
6227 * loop.c (load_mems): Copy rtx for output mem.
6229 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
6231 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
6232 mips1 or mips2 either.
6234 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
6236 * pa.c (pa_reorg): New marking scheme for jumps inside switch
6238 (pa_adjust_insn_length): Update to work with new marking scheme
6239 for jumps inside switch tables.
6240 * pa.md (switch_jump): Remove pattern.
6241 (jump): Handle jumps inside jump tables.
6243 * Makefile.in (profile.o): Depend on insn-config.h
6245 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
6247 * iris6.h (DWARF2_UNWIND_INFO): Undef.
6249 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6251 Add preliminary native sparcv9 Solaris support.
6252 * configure.in: Recognize sparv9-*-solaris2*
6253 * configure: rebuilt
6254 * config.sub: Recognize sparcv9 just like sparc64.
6255 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
6256 config/sparc/sol2-cn.asm: Macroize so it can be shared between
6257 32-bit and 64-bit Solaris systems.
6258 * config/sparc/t-sol2: Assemble those with cpp.
6259 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
6260 (*TF*_LIBCALL): If ARCH64 use V9 names.
6261 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
6263 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6265 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
6266 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
6268 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
6270 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
6271 to Pmode if CASE_VECTOR_MODE is something else.
6273 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
6275 * prefix.c (update_path): Correctly handle cases where PATH is
6276 a substring of the builtin prefix, but specifies a different
6279 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
6281 * expr.c: Corrected comment about what MOVE_RATIO does.
6282 * config/alpha/alpha.h: Ditto.
6283 * config/1750a/1750a.h: Ditto.
6284 * config/clipper/clipper.h: Ditto.
6285 * config/i386/i386.h: Ditto.
6287 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
6289 * configure.in (m68k-next-nextstep3*): Use collect2.
6290 Similarly for x86 NeXT configurations.
6291 * configure: Rebuilt.
6293 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
6295 * configure.in: Don't assume srcdir is .../gcc
6296 * configure: Rebuilt.
6298 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
6300 * global.c: Update comments.
6301 (global_alloc): Assign allocation-numbers
6302 even for registers allocated by local_alloc in case
6303 they are later spilled and retry_global_alloc is called.
6304 (mark_reg_store, mark_reg_clobber,
6305 mark_reg_conflicts, mark_reg_death): Always record a
6306 conflict with a pseudo register even if it has been
6307 assigned to a hard register.
6308 (dump_conflicts): Don't list pseudo registers already assigned to
6309 a hard register as needing to be allocated, but do list their
6311 * local-alloc.c: Update comment.
6313 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
6315 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
6316 * configure: Rebuilt.
6318 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
6320 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
6322 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
6323 for all targets that set -msoft-float.
6325 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6327 * toplev.c (print_switch_values): Make static to match prototype.
6329 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
6331 * configure.in: If we are unable to find the "gnatbind" program,
6332 then do not configure the ada subdir.
6333 * configure: Rebuilt.
6335 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
6337 * version.c: Bump for snapshot.
6339 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
6341 * version.c: Bump for snapshot.
6343 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6345 * Makefile.in (toplev.o): Depend on $(EXPR_H).
6346 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
6348 * gansidecl.h: Define ATTRIBUTE_NORETURN.
6350 * genattrtab.c: Have insn-attrtab.c include toplev.h.
6352 * genextract.c: Have insn-extract.c include toplev.h.
6354 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
6356 * toplev.c: Include expr.h.
6357 (really_sorry, fancy_abort): Remove prototypes.
6358 (set_target_switch): Add argument in prototype.
6359 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
6360 (v_really_sorry): Likewise.
6361 (print_version, print_single_switch, print_switch_values): Make
6362 static and add prototype arguments.
6363 (decl_printable_name): Add prototype arguments.
6364 (lang_expand_expr_t): New typedef.
6365 (lang_expand_expr): Declare as a lang_expand_expr_t.
6366 (incomplete_decl_finalize_hook): Add prototype argument.
6367 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
6368 (botch): Likewise for variable `s'.
6369 (rest_of_type_compilation): Mark variables `type' and `toplev'
6370 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
6371 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
6372 (display_help): Make variable `i' an `unsigned long'.
6373 (main): Remove unused parameter `envp'.
6374 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
6375 Cast -1 when comparing it with a `size_t'.
6377 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
6378 prototype with ATTRIBUTE_NORETURN.
6379 (fatal_insn_not_found, fatal_insn, really_sorry,
6380 push_float_handler, pop_float_handler): Add prototypes.
6381 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
6382 (do_abort, botch): Add prototypes.
6384 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
6386 * final.c (final): If a label is reached only from a single jump,
6387 call NOTICE_UPDATE_CC on the jump and its predecessor before
6388 emitting the insn after the label.
6390 * i386.h: Add AMD K6 support.
6391 Change TARGET_* macros to use table lookup.
6392 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
6393 (ADJUST_COST): Change definition to call function in i386.c.
6394 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
6395 * i386.c: Add AMD K6 support.
6396 Add constants for feature tests used by TARGET_* macros.
6397 (split_di): If before reload, call gen_lowpart and gen_highpart.
6398 (x86_adjust_cost): New function.
6399 (put_jump_code): New function.
6400 (print_operand): New codes 'D' and 'd'.
6401 * i386.md: New insn types. New insn attribute "memory".
6402 Redefine scheduling parameters to use new types and add AMD K6
6403 support. Explicitly set type of most insns.
6404 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
6405 Pro and K6 prefer movl $1,reg to incl reg.
6406 (adddi3, subdi3): Set cc_status.
6407 (DImode shift patterns): Change label counters from HOST_WIDE_INT
6408 to int; x86 can't have more than 2^31 DImode shifts per file.
6409 (setcc): Combine all setcc patterns. Allow writing memory.
6410 Combine all jump patterns using match_operator.
6411 (*bzero): Name pattern. Emit mutliple stos instructions when that
6412 is faster than rep stos.
6413 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
6416 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
6418 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
6421 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
6423 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
6424 not whatever we're generating now.
6426 * alpha.c (set_frame_related_p, FRP): New.
6427 (alpha_expand_prologue): Mark frame related insns.
6428 (alpha_expand_epilogue): Likewise, but with a null FRP.
6429 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
6430 * alpha.md (exception_receiver): New.
6431 * alpha/crtbegin.asm (.eh_frame): New beginning.
6432 (__do_frame_setup, __do_frame_takedown): New.
6433 * alpha/crtend.asm (.eh_frame): New ending.
6434 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
6435 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
6436 (ASM_FILE_START): Don't emit .file for dwarf2.
6438 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
6439 * rtl.c (reg_note_name): Likewise.
6440 * rtl.texi (REG_NOTES): Likewise.
6441 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
6444 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
6446 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
6447 * i386.md (movsf, movdf, movxf): Validate memory address returned
6448 from force_const_mem. Kill useless REG_EQUAL setting code.
6450 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
6452 * m68k.md (zero_extendsidi2): Fix typo.
6454 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
6456 * configure.in: Removed references to the removed file
6457 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
6458 * arm*-*-netbsd* and ns32k-*-netbsd*.
6459 * config/i386/xm-netbsd.h: Removed unnecessary file.
6460 * config/m68k/xm-netbsd.h: Likewise.
6461 * config/sparc/xm-netbsd.h: Likewise.
6462 * config/mips/xm-netbsd.h: Likewise.
6464 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
6466 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
6467 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
6469 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
6470 for exact section attributions.
6472 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
6474 * i386/crtdll.h (CPP_PREDEFINES): Define.
6476 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
6478 * m68k.md (5200 movqi): Do not allow byte sized memory references
6480 * m68k.c (output_move_qimode): Do not use byte sized operations on
6483 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
6484 explicit rules for building. Similarly for alloca, vfprintf,
6485 choose-temp and mkstemp, getopt, getopt1, and obstack.
6486 (INCLUDES): Add $(srcdir)/../include.
6487 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
6488 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
6490 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
6492 * gcc.c (do_spec_1): [case 'o'] Account for
6493 lang_specific_extra_outfiles.
6494 (main): Correctly clear all slots in outfiles for
6495 lang_specific_extra_outfiles. Set input_file_number before
6496 calling lang_specific_pre_link.
6498 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
6500 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
6502 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6504 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
6506 (sparc_output_deferred_case_vectors): If no work to do, return.
6507 Fix thinko in Sept 1 change.
6509 1998-09-03 SL Baur <steve@altair.xemacs.org>
6511 * Makefile.in: add semicolon in BISON definition for portability.
6513 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
6515 * config/nextstep.c (handle_pragma): Correct name of third
6518 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
6520 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
6521 * config/m32r/m32r.h: Make register 17 be fixed.
6522 * config/m32r/m32r.c: Use SImode for cc operations.
6524 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
6526 * invoke.texi (Warning Options): Add -Wnon-template-friend
6529 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
6531 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
6533 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
6535 * rs6000.md (movsf): Disable explicit secondary-reload-like
6536 functionality if TARGET_POWERPC64.
6537 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
6540 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
6542 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
6543 and term.h from fixinc.wrap.
6545 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6547 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
6548 safe to include both string.h and strings.h together.
6549 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
6550 which headers to search for function declarations. Continue to
6551 prefer string.h over strings.h when both are not acceptable.
6553 * acconfig.h (STRING_WITH_STRINGS): Add stub.
6555 * configure.in: Call GCC_HEADER_STRING.
6557 * system.h: Test STRING_WITH_STRINGS when deciding which headers
6558 to include. Continue to prefer string.h over strings.h when both
6561 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6563 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
6564 not assume top 32-bits of symbolic addresses are zero if
6567 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
6569 * ginclude/va-alpha.h: Protect entire second portion of the
6570 file against double inclusion.
6572 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
6574 Added support for the Boehm's garbage collector.
6575 * configure.in: Handle --enable-objc-gc.
6576 * configure: Rebuilt.
6577 * Makefile.in (CHECK_TARGETS): Add check-objc.
6578 (check-objc): New rule.
6579 * objc/Make-lang.in: Build a different Objective-C library that
6580 runs with the Boehm's collector.
6581 * objc/encoding.c (objc_round_acc_size_for_types): New function.
6582 * objc/encoding.c: Correctly compute the size of compound types in
6583 the presence of bitfields. Skip the variable name of the type if
6584 any. Added support for long long.
6585 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
6586 (_F_GCINVISIBLE): New mask.
6587 * objc/gc.c: New file. Compute the type memory mask associated with
6588 a class based on the runtime information.
6589 * objc/misc.c: Added the hooks that use the Boehm's collector
6590 allocation functions.
6591 * objc/objc-act.c (build_class_template): Generate a new class
6592 member (gc_object_type) to hold the class' type memory mask.
6593 (build_shared_structure_initializer): Initialize the new member to
6595 (encode_complete_bitfield): New function. Generate the new
6597 (encode_field_decl): Generate the new encoding only for the GNU
6599 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
6601 (class_get_gc_object_type): New function to mark a pointer instance
6602 variable as a weak pointer.
6603 * objc/objc-features.texi: New file.
6604 * objc/objc.h (gc_object_type): New class member.
6605 * objc/objects.c (class_create_instance): Create a typed memory
6606 object when compiled with Boehm's collector support.
6607 * objc/sendmsg.c (__objc_init_install_dtable): Call
6608 __objc_send_initialize instead of setting the initialize flag.
6609 (__objc_send_initialize): Call __objc_generate_gc_type_description
6610 to generate the class type memory mask. Rewrite the code that
6611 sends the +initialize so that it is called only once (bug report
6612 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
6613 * testsuite/objc: New testsuite for Objective-C type encoding.
6614 * testsuite/lib/objc-torture.exp: New file.
6615 * testsuite/lib/objc.exp: New file.
6617 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
6619 * jump.c (jump_optimize): In if/then/else transformations, add
6620 another call to modified_between_p for the jump insn.
6622 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
6624 * fix-header.c (symlink): Treat like readlink.
6626 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6628 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
6631 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
6633 * config/nextstep.h: Update HANDLE_PRAGMA macro.
6634 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
6635 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
6637 * config/nextstep.c (handle_pragma): Take three arguments, as per
6638 the new HANDLE_PRAGMA macro specification.
6639 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
6640 per the new HANDLE_PRAGMA macro specification.
6641 * config/i960/i960.c (process_pragma): Take three arguments, as
6642 per the new HANDLE_PRAGMA macro specification.
6644 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
6646 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
6647 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
6648 if unknown pragmas are encountered.
6649 (handle_sysv_pragma): Interpret return code from
6650 handle_pragma_token (). Return success/failure indication rather
6651 than next unprocessed character.
6652 (pragma_getc): New function: retrieves characters from the
6653 input stream. Defined when HANDLE_PRAGMA is enabled.
6654 (pragma_ungetc): New function: replaces characters back into the
6655 input stream. Defined when HANDLE_PRAGMA is enabled.
6657 * c-pragma.c (handle_pragma_token): Return success/failure status
6660 * c-pragma.h: Change prototype of handle_pragma_token().
6662 * varasm.c: (handle_pragma_weak): Only create this function if
6663 HANDLE_PRAGMA_WEAK is defined.
6665 * c-common,c (decl_attributes): If defined call the expression
6666 contained within the INSERT_ATTRIBUTES macro before adding
6667 attributes to a decl.
6669 * tm.texi (HANDLE_PRAGMA): Document the new verion of
6670 HANDLE_PRAGMA, which takes three arguments.
6671 (INSERT_ATTRIBUTES): Document this new macro.
6673 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
6674 new INSERT_ATTRIBUTES macro.
6676 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6678 * config/sparc/sparc.md (movdf): Only generate special RTL for
6679 LABEL_REFs when PIC.
6680 (move_label_di): Remove
6681 (movdi_pic_label_ref, movdi_high_pic_label_ref,
6682 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
6683 references when PIC.
6684 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
6685 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
6686 output an .xword for all 64-bit cases.
6688 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6690 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
6691 alignment, use FUNCTION_BOUNDARY instead.
6692 (sparc_output_deferred_case_vectors): Likewise.
6694 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6696 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
6697 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
6699 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
6701 * alpha/va_list.h: New file.
6702 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
6704 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
6706 * NEWS: Add SCO Openserver and Unixware 7 notes.
6710 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
6712 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
6713 (record_constant_1): Handle RANGE_EXPR.
6715 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
6717 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
6718 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
6719 and NOTE_INSN_RANGE_END specially.
6720 (reemit_notes): Likewise.
6722 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6724 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
6725 (ultrasparc_sched_init): Remove unneeded &.
6727 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
6729 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
6730 for m68020-60, to prevent the use of fintrz.
6732 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
6734 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
6736 * Makefile.in: Likewise.
6737 * configure: Regenerated.
6739 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
6741 * configure.in (gxx_include_dir): Changed to
6742 '${prefix}/include/g++'-${libstdcxx_interface}.
6743 * configure: Rebuilt.
6745 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
6747 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
6749 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
6750 *sequences* *below* which scalar moves will be used.
6752 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
6754 * collect2.c (mktemp): Delete unused declaration.
6756 * config/xm-netbsd.h: Remove unnecessary file.
6757 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
6758 file anymore, it is not needed.
6760 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
6762 * convert.c (convert_to_integer): Issue an error on conversions to
6765 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
6767 * Makefile.in: Add lang_tree_files and gencheck.h.
6768 * configure.in: Generate them.
6769 * gencheck.c: Include gencheck.h.
6771 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6773 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
6774 movdi_lo_sum_pic and movdi_high_pic and make visible.
6775 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
6776 emit these when Pmode is not SImode.
6777 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
6779 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
6781 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
6782 .linkonce directive after the first time.
6784 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
6786 * m68k.md (beq0_di): Generate correct (and more efficient) code when
6787 the clobbered operand overlaps with an input.
6788 (bne0_di): Similarly.
6790 * Makefile.in (INSTALL): Remove "--no-header" argument.
6792 * NEWS: Various updates.
6794 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6796 * config/sparc/sparc.c (arith_operand, const64_operand,
6797 const64_high_operand, arith_double_4096_operand): Mark mode as
6799 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
6801 (sparc_emit_set_const64): Remove unused variable i.
6802 (sparc_splitdi_legitimate): Likewise for addr_part.
6803 (ultra_code_from_mask): Likewise for mask.
6804 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
6805 reverse return values so it matches usage and comments.
6806 (ultra_flush_pipeline): Likewise.
6807 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
6808 this_type, and allow loads and stores of differing FP modes as
6809 they do not create a conflict.
6810 (ultra_find_type): Initialize fpmode to SFmode, fix
6811 parenthesization thinkos in large conditional.
6812 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
6813 Init free_slot_mask after ultra_cur_hist is reset, not before.
6814 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
6815 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
6816 use ultra_flush_pipeline instead, then re-init group pointer.
6817 Fix statement with no effect. If no progress made in, and no
6818 instructions scheduled at all, advance to new pipeline cycle else
6819 we get into an endless loop.
6820 (ultrasparc_adjust_cost): Remove previous arg.
6821 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
6823 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
6825 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
6826 code. Use reg_overlap_mentioned_p to detect when source and
6827 destination overlap.
6828 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
6830 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
6832 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
6833 COMPARISON_VAL, into invariant_p.
6835 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6837 * regmove.c (regclass_compatible_p): New function.
6838 (regmove_optimize): Use it.
6840 Use NREGS parameter insted of calling max_reg_num.
6842 (fixup_match_1): Don't use code = MINUS when later tieing with
6843 a hard register is likely.
6845 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6847 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
6848 COMPARISON_VAL was normalized.
6850 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
6852 * loop.c (check_dbra_loop): The loop ending comparison value
6853 must be an invariant or we can not reverse the loop.
6855 * loop.c (scan_loop): Count down from max_reg_num - 1 to
6856 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
6858 (load_mems_and_recount_loop_regs_set): Likewise.
6860 * i386.c (print_operand): Remove obsolete 'c' docs.
6862 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
6864 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
6865 * frame.c (init_object_mutex): New function.
6866 (init_object_mutex_once): Likewise.
6867 (find_fde): Call it.
6868 (__register_frame_info): Likewise.
6869 (__register_frame_info_table): Likewise.
6870 (__deregister_frame_info): Likewise.
6872 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
6874 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
6876 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6878 * loop.c (check_dbra_loop): Enable code for reversal
6879 of some loops without a known constant loop end.
6881 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
6883 * haifa-sched.c (last_clock_var): New.
6884 (schedule_block): Initialize it.
6885 (schedule_insn): Use it to fill insn modes with issue information.
6887 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
6888 Tag trapb and next insn with TImode.
6889 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
6890 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
6891 Invoke alphaev5_align_insns as appropriate.
6892 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
6893 (MD_SCHED_VARIABLE_ISSUE): New.
6894 * alpha.md (attr type): Add multi.
6895 (define_asm_attributes): New.
6896 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
6897 (arg_home): Likewise.
6898 (fnop, unop, realign): New.
6900 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
6902 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
6903 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
6905 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
6906 (rs6000-ibm-aix4.[12]*): Likewise.
6907 * configure: Regnerate.
6909 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
6911 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
6912 already contains the return address.
6914 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
6916 * calls.c (expand_call): Use bitfield instructions to extract/deposit
6917 word sized hunks when loading unaligned args into registers.
6919 * haifa-sched.c (sched_analyze_insn): Only create scheduling
6920 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
6922 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
6924 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6926 * loop.c (check_dbra_loop): Add some code that would allow reversal
6927 of some loops without a known constant loop end if it were enabled.
6929 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
6931 * mips.md (lshrsi3_internal2+2): Fix type-o.
6933 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6935 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
6936 correctly with regards to stdio.h.
6938 * calls.c: Remove stdarg.h/varargs.h.
6941 * combine.c: Likewise.
6942 * cpperror.c: Likewise.
6943 * cpplib.c: Likewise.
6944 * cpplib.h: Likewise.
6945 * doprint.c: Likewise.
6946 * emit-rtl.c: Likewise.
6947 * final.c: Likewise.
6948 * fix-header.c: Likewise.
6950 * genattr.c: Likewise.
6951 * genattrtab.c: Likewise.
6952 * gencodes.c: Likewise.
6953 * genconfig.c: Likewise.
6954 * genemit.c: Likewise.
6955 * genextract.c: Likewise.
6956 * genflags.c: Likewise.
6957 * genopinit.c: Likewise.
6958 * genoutput.c: Likewise.
6959 * genpeep.c: Likewise.
6960 * genrecog.c: Likewise.
6961 * mips-tfile.c: Likewise.
6962 * prefix.c: Likewise.
6963 * protoize.c: Likewise.
6964 * regmove.c: Likewise.
6965 * toplev.c: Likewise.
6968 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6970 * config/sparc/sparc.c (sparc_override_options): If not
6971 TARGET_FPU, turn off TARGET_VIS.
6972 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
6973 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
6974 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
6975 (movdi_insn_sp64): Add VIS fzero alternative.
6976 (clear_sf, clear_df): New VIS patterns.
6977 (movsf, movdf expanders): Allow fp_zero_operand flat out when
6979 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
6981 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
6983 * loop.c (n_times_set, n_times_used, may_not_optimize,
6984 reg_single_usage): Convert to varrays. All uses changed.
6985 (insert_loop_mem): Return a value.
6986 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
6987 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
6990 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
6993 * configure.in: Do not set thread_file to "irix" since no such
6996 * sparc.md (float abs/neg splits): Check reload_completed before
6997 calling alter_subreg.
6999 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7001 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
7003 * config/sparc/sparc.h: Declare it.
7004 * config/sparc/sparc.md (float abs/neg splits): Use it.
7005 (all other splits): Handle SUBREGs properly where necessary.
7006 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
7008 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
7010 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
7011 an insn on the unfilled_slots_list that has no delay slots.
7012 (fill_eager_delay_slots): Similarly.
7014 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
7016 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
7017 as an ordinary operand.
7019 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
7021 * tree.c (valid_machine_attribute): Don't apply attributes to both
7024 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
7026 * reload.c (operands_match_p): Handle rtvecs.
7028 * i386.c (legitimate_pic_address_disp_p): New.
7029 (legitimate_address_p): Use it.
7030 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
7031 Handle constant pool symbols just like statics.
7032 (emit_pic_move): Use Pmode not SImode for clarity.
7033 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
7034 [UNSPEC]: New, handling what we killed above.
7035 [PLUS]: Detect and abort on invalid symbol arithmetic.
7036 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
7038 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
7040 * alias.c: Include output.h.
7041 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
7042 different if we're in a varargs function.
7043 * Makefile.in (alias.o): Depend on output.h
7045 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7047 * sh.h (GIV_SORT_CRITERION): Delete.
7049 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
7051 * regclass.c (regclass): Use xmalloc/free instead of alloca.
7052 * stupid.c (stupid_life_analysis): Ditto.
7053 * reload1.c (reload): Ditto.
7055 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
7057 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
7058 arith_double_4096_operand, arith_double_add_operand): New
7060 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
7061 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
7062 them to transform add/sub 4096 into add/sub -4096.
7064 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7066 * loop.c (scan_loop): Allocate some slop to handle pseudos
7067 generated by move_movables.
7068 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
7071 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
7073 * tree.def (DECL_RESULT): Correct documentation.
7075 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7077 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
7078 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
7079 conflicts will all RELOAD_FOR_OUTPUT reloads.
7081 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
7082 loads the function result, substitute with a USE.
7084 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
7086 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
7087 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
7088 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
7089 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
7090 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
7091 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
7093 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
7094 'o' to 'm' for GPR variant constraints.
7096 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
7098 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
7100 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
7102 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
7103 when the source and destination overlap.
7105 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
7106 clash with global type.
7108 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
7110 * fixinc.irix: Add curses.h handling from fixinc.wrap.
7112 * c-common.c (combine_strings): Also set TREE_READONLY.
7113 Change warn_write_strings to flag_const_strings.
7114 * c-decl.c, c-tree.h: Likewise.
7116 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7118 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
7119 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
7120 sequence, use SET/IOR instead so CSE can see it.
7121 * config/sparc/sparc.md (movhi_const64_special,
7122 movsi_const64_special): New patterns necessitated by that change.
7123 (movhi_high): Remove.
7124 (movhi_lo_sum): Change to match an IOR.
7125 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
7126 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
7127 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
7128 (movdf splits): Allow when not V9 or when not ARCH64 and integer
7129 registers are involved.
7130 (snesi_zero_extend split): Remove reload_completed test.
7131 (unnamed plus and minus zero_extend sidi splits): Add it.
7133 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
7135 * extend.texi: Remove description of extension to explicit
7136 instantiation that is now endorsed by standard C++.
7138 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7140 * config/arc/arc.c (arc_initialize_pic): Remove.
7141 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
7142 nothing on any platform and is invoked by no-one, it does not even
7143 appear in the documentation.
7144 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
7145 * config/sparc/sparc.c (initialize_pic): Likewise.
7146 (find_addr_reg): Remove this as well, no longer referenced after
7149 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
7151 * recog.c (validate_replace_rtx_group): New function.
7152 * recog.h (validate_replace_rtx_group): Declare it.
7153 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
7154 the entire group of substitutions.
7156 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
7158 * loop.c (load_mems): Fix initializers.
7160 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7162 * config/sparc/sparc.md (TFmode splits): Handle destination
7163 registers being referenced in the address correctly.
7165 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
7166 TREE_UNSIGNED, when bitsize of type's mode is larger than
7167 HOST_BITS_PER_WIDE_INT.
7169 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
7171 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
7172 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
7173 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
7175 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
7178 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
7180 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
7181 * h8300.h (TINY_DATA_NAME_P): Likewise.
7182 (STRIP_NAME_ENCODING): Handle '&'.
7184 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
7185 register (it could be accessed via an outer SUBREG).
7186 (REG_OK_FOR_BASE_P): Likewwise.
7187 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
7189 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
7192 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
7194 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7196 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
7197 must be offsettable so the splits can be made.
7199 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
7201 * config/i386/winnt.c: Include system.h, not stdio.h to get
7202 sys/param.h pulled in before rtl.h in case the system defines MIN
7205 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
7207 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
7209 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
7211 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
7213 * cpplib.c (cpp_define): Handle macros with parameters.
7215 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
7217 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
7218 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
7219 and DImode 64-bit. Use llong for minimal-toc SFmode and
7220 SYMBOL_REF / LABEL_REF 64-bit.
7221 (output_function_profiler): Use llong for profiler label and ld to
7222 load 64-bit label address.
7224 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
7226 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
7229 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
7231 * version.c: Bump for snapshot.
7233 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
7235 * version.c: Bump for snapshot.
7237 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
7239 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
7241 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
7243 * tm.texi (Misc): Fix typo "teh".
7245 * tm.texi (PIC): Fix typo "PPIC".
7247 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
7248 effect when -O2 and higher.
7249 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
7251 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
7253 * regclass.c: Changed register set documentation to be consistent
7256 * final.c (final_start_function) Removed redundant test for
7259 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
7261 * rtl.h (rtx_function): New type.
7262 (for_each_rtx): New function.
7263 * rtlanal.c (for_each_rtx): Define it.
7265 * recog.c (change_t): New type.
7266 (change_objects, change_old_codes, change_locs, change_olds):
7268 (changes): New variable.
7269 (validate_change): Dynamically allocate room for more changes, if
7270 necessary. Uses changes array instead of change_objects, etc.
7271 (apply_change_group): Use changes array instead of
7272 change_objects, etc.
7274 * loop.c (loop_mem_info): New type.
7275 (loop_mems): New variable.
7276 (loop_mems_idx): Likewise.
7277 (looop_mems_allocated): Likewise.
7278 (scan_loop): Remove nregs parameter.
7279 (next_insn_in_loop): New function.
7280 (load_mems_and_recount_loop_regs_set): Likewise.
7281 (load_mems): Likewise.
7282 (insert_loop_mem): Likewise.
7283 (replace_loop_mem): Likewise.
7284 (replace_label): Likewise.
7285 (INSN_IN_RANGE_P): New macro.
7286 (loop_optimize): Don't pass max_reg_num() to scan_loop.
7287 (scan_loop): Remove nregs parameter, compute it after any new
7288 registers are created by load_mems. Use INSN_IN_RANGE_P and
7289 next_insn_in_loop rather than expanding them inline. Call
7290 load_mems to load memory into pseudos, if appropriate.
7291 (prescan_loop): Figure out whether or not there are jumps from the
7292 loop to targets other than the label immediately following the
7293 loop. Call insert_loop_mem to notice all the MEMs used in the
7294 loop, if it could be safe to pull MEMs into REGs for the duration
7296 (strength_reduce): Use next_insn_in_loop. Tweak comments.
7298 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
7300 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
7302 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7304 * config/sparc/sparc.c (finalize_pic): Check for the correct
7305 nonlocal_goto_receiver UNSPEC number.
7306 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
7307 making note of this dependency existing in sparc.c
7308 (negtf2_notv9 split): Give NEG SFmode.
7309 (negsf2): Fix insn output string.
7311 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
7313 * c-common.c (decl_attributes): Issue an error if the argument
7314 to alias is not a string.
7316 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
7318 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
7319 pending memory flush list.
7321 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
7323 (try_combine): Allow combining insns with REG_LIBCALL notes.
7325 * expr.c (emit_block_move): Do not call memcpy as a libcall
7326 instead build up a CALL_EXPR and call it like any other
7328 (clear_storage): Similarly for memset.
7330 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
7333 * Makefile.in (cplus-dem.o): Provide explicit rules for building
7336 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
7337 and REG_LIVE_LENGTH as successful substitutions are made.
7339 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7341 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
7342 statement after end of loop label.
7344 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7346 * config/sparc/sparc.c (ultra_types_avail): New variable.
7347 (ultra_build_types_avail): New function to record mask of insn
7348 types in ready list at this cycle.
7349 (ultrasparc_sched_reorder): Call it.
7350 (ultra_find_type): Use it to quicken the search. Also simplif
7351 dependency check, don't use rtx_equal_p because we know exactly
7352 what we are looking for.
7354 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
7356 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
7357 for architecture v4.
7359 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7361 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
7363 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
7364 movdf_const_intreg and helper splits): New patterns to move float
7365 constants into integer registers.
7366 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
7369 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
7372 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
7374 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
7376 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
7377 a BASE_REGS register is needed as an intermediate when copying
7378 a symbolic value into any register class other than BASE_REGS.
7380 * expr.c (move_by_pieces): No longer static. Remove prototype.
7381 * rtl.h (move_by_pieces): Add extern prototype.
7382 * mips.c (expand_block_move): Handle aligned straight line copy by
7383 calling move_by_pieces.
7385 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
7388 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
7390 * stmt.c (expand_end_loop): Tidy. Allow unconditional
7391 jumps out of the loop to be treated as part of the exit test.
7393 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7394 Jeff Law <law@cygnus.com>
7396 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
7397 * cplus-dem.c: Delete.
7399 * Makefile.in (fold-const.o): depend on $(RTL_H).
7401 * fold-const.c: Include rtl.h to get the prototype for
7402 `set_identifier_local_value'.
7404 * loop.c (express_from_1): Remove unused variable `tmp'.
7405 (combine_givs): cast the first argument of bzero to char *.
7407 * toplev.c (display_help): Remove unused variable `looking_for_start'.
7409 * c-decl.c (init_decl_processing): Remove unneeded &.
7411 * alpha.h (alpha_initialize_trampoline): Provide prototype.
7413 * except.c (set_exception_lang_code, set_exception_version_code):
7414 Change parameter from `short' to `int' to avoid using a gcc
7417 * except.h (set_exception_lang_code, set_exception_version_code):
7418 Likewise for prototypes.
7420 * flow.c (count_reg_references): Remove unused variables `regno'
7423 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
7425 * prefix.c (translate_name): Cast the result of `alloca'.
7427 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
7429 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
7431 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
7433 (valid_dbcc_comparison_p): Mark mode argument as unused.
7434 (symbolic_operand): Likewise.
7435 (legitimize_pic_address): Likewise.
7436 (const_uint32_operand): Likewise.
7437 (const_sint32_operand): Likewise.
7438 * sched.c [!INSN_SCHEDULING]: Define only dummy function
7439 schedule_insns and comment out rest of file.
7441 * m68k.c (output_move_simode_const): Use subl to move a zero into an
7443 (output_move_[hq]imode): Likewise.
7445 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
7447 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
7448 * invoke.texi: Corresponding changes.
7450 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
7452 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
7454 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7456 * config/sparc/sparc.c (ultra_code_from_mask,
7457 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
7458 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
7459 ultrasparc_sched_init, ultrasparc_variable_issue,
7460 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
7461 functions to describe UltraSPARC pipeline exactly to Haifa.
7462 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
7463 as there is nothing the scheduler can do about it. Indicate that
7464 REG_DEP_OUTPUT's collide. Fixup formatting.
7465 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
7466 divide costs on Ultra for DImode.
7467 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
7469 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
7470 ieuN and add call_no_delay_slot to type list.
7471 (cti function unit): New unit for branches on UltraSPARC.
7472 (subx/addx insns): Set type to misc.
7473 (sidi zero/sign extension insns on arch64): Set type to shift.
7474 (sign_extendhidi2_insn): Set type to sload.
7476 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
7478 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
7479 (output_epilog): Use if != 0 for offset.
7480 (rs6000_fatal_bad_address): Prepare for Intl.
7481 * rs6000.h (rs6000_fatal_bad_address): Declare.
7482 * rs6000.md (movsfcc, movdfcc): Use else if.
7483 (elf_high): Use {liu|lis}.
7484 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
7485 (movsi): Use rs6000_fatal_bad_address.
7487 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
7489 * reload.c (find_equiv_reg): Reject equivalences separated
7490 by a volatile instruction.
7492 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
7494 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
7496 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
7498 * alpha.md (movsicc): Fix mode mismatch.
7500 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
7502 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
7504 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
7506 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7508 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
7509 write-only modifier from operand 1 constraint.
7511 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7513 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
7514 emitting a XOR of -1 at the end, emit a NOT instead for combine's
7516 (sparc_emit_set_const64): Likewise, also when computing trailing
7517 bits do not negate low_bits and make fast_int an int.
7519 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
7521 * loop.c (add_label_notes): Do not ignore references to labels
7522 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
7523 * gcse.c (add_label_notes): Similarly.
7525 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
7527 * m68k.md (adddi_dilshr32): One of the operands must be a register.
7528 (adddi_dishl32): Similarly.
7530 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
7532 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
7533 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
7534 * cse.c (cse_basic_block): Add parens to shut up warnings.
7536 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7538 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
7539 sparc_emit_set_const64_longway, const64_is_2insns,
7540 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
7541 in 64-bit constant formation.
7542 * config/sparc/sparc.md (snesi_zero_extend split): Generate
7543 rtl for addx not subx.
7544 (define_insn movdi_const64_special): Make available even when
7545 HOST_BITS_PER_WIDE_INT is not 64.
7546 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
7547 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
7548 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
7549 instances of operand 1 inside a QI subreg.
7550 (xordi3_sp64_dbl): Remove '%' constraint for op1.
7551 (one_cmpldi2_sp64): Fix output string.
7552 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
7554 (unnamed arch64 ashift DI): Truncate shift count if greater than
7557 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
7559 * expr.c (store_expr): Don't optimize away load-store pair
7560 when either source or destination have a side effect.
7562 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
7564 * genrecog.c (add_to_sequence): Fatal error if the modes of the
7565 operands of SET are incompatible.
7567 * alpha.md: Fix max and min patterns so modes of SET operands match.
7569 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
7571 * configure.in: Avoid [[ by using test and changequote.
7572 * configure: Rebuild.
7574 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7576 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
7578 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
7579 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
7580 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
7581 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
7582 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
7583 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
7584 Fix mismatching modes in SET operands.
7585 (conditional move patterns): Fix formatting.
7586 (unnamed subx arch64 pattern): Remove duplicate insn.
7588 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7590 * config/sparc/sparc.c (const64_operand, const64_high_operand):
7591 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
7592 (input_operand): Fixup test for what we accept for constant
7594 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
7596 (safe_constDI): Remove.
7597 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
7598 gen_safe_XOR64): New functions.
7599 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
7600 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
7602 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
7603 available when HOST_BITS_PER_WIDE_INT is not 64.
7604 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
7605 move before movdi_insn_sp64 pattern.
7606 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
7607 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
7608 symbolic_operand as predicate for second operand.
7609 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
7610 expander): Give set VOIDmode.
7612 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
7614 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
7616 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
7618 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
7620 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
7622 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
7624 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
7626 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
7628 * install.texi: Various SCO OpenServer tweaks.
7630 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
7632 * reload1.c (eliminate_regs_in_insn): Handle another case when
7633 eliminating the frame pointer to the hard frame pointer. Add
7634 missing ep->to_rtx check to one existing case.
7636 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
7638 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
7640 * tree.h: De-conditionalize init_priority code.
7642 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
7643 * collect2.c (NM_FLAGS): Change from -p to -n.
7645 * configure.in: Turn on collect2 for mipstx39-elf.
7646 Handle use_collect2=no properly.
7648 * c-common.c: De-conditionalize init_priority code.
7649 * collect2.c (extract_init_priority, sort_ids): New fns.
7650 (main): Call sort_ids.
7651 Move sequence_number to file scope.
7653 * configure.in: Handle --enable-init-priority.
7654 * c-common.c (attrs): Add A_INIT_PRIORITY.
7655 (init_attributes, decl_attributes): Likewise.
7656 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
7657 * tree.c (get_file_function_name_long): Split out...
7658 (get_file_function_name): ...from here.
7660 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
7662 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
7665 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
7667 * toplev.c (display_help): Add braces to shut up warnings.
7668 * tree.c (simple_cst_equal): Likewise.
7670 * fold-const.c (non_lvalue): Don't deal with null pointer
7672 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
7674 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
7675 of any size to a pointer.
7677 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
7679 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
7681 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
7683 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
7684 which will be saved.
7685 * mn10300.md (prologue insn): Only save registers which need saving.
7686 (epilogue insn): Similarly.
7688 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
7691 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
7693 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
7694 VAR_DECL's in gp addressable sections.
7696 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
7698 * sparc.c: Change return <exp> to <exp>; return; in functions
7700 * sparc.md: Add empty semicolon statement after final label in
7703 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7705 * config/sparc/sparc.md (define_insn addx_extend): Rename to
7706 addx_extend_sp64, only allow when TARGET_ARCH64.
7707 (define_insn addx_extend_sp32 and split): Version that works when
7709 (define_insn subx_extend): Likewise.
7710 (define_split adddi3 and subdi3 with zero extension): Fixup and
7711 correct bugs when not TARGET_ARCH64.
7713 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
7715 * except.c (set_exception_lang_code, set_exception_version_code):
7716 Use prototype-style definition if __STDC__, to match declaration
7719 * genemit.c: Change FAIL and DONE macros not to use loops.
7721 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
7723 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
7724 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
7726 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
7728 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
7730 * README.g77: Update from Craig.
7732 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7734 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
7736 (safe_constDI sparc_emit_set_const64_quick1,
7737 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
7738 analyze_64bit_constant, const64_is_2insns,
7739 create_simple_focus_bits): Fix some bugs when compiled on real
7741 (function_arg_record_value_3, function_arg_record_value_2,
7742 function_arg_record_value): Add fully prototyped forward decls.
7743 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
7744 to cmpsi_insn and use on both 64 and 32 bit targets.
7745 (define_insn cmpsi_insn_sp64): Remove.
7746 (define_expand zero_extendsidi2): Allow for 32-bit target too.
7747 (define_insn zero_extendsidi2_insn): Rename to
7748 zero_extendsidi2_insn_sp64.
7749 (define_insn zero_extendsidi2_insn_sp32): New pattern and
7750 assosciated forced split for it.
7752 * config/sparc/sparc.c (const64_operand, const64_high_operand):
7754 * config/sparc/sparc.h: Declare them.
7755 (PREDICATE_CODES): Add them.
7756 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
7757 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
7759 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
7761 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
7762 in v9 case as the latter makes the Solaris assembler crash.
7764 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7766 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
7767 for TFmode when !v9. We require offsettable memory addresses.
7768 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
7769 DFmode register number conversions.
7770 * config/sparc/sparc.md (define_split DFmode moves): If register
7771 is a SUBREG do alter_subreg on it before using.
7772 (define_expand movtf): Fixup comment about alignment on v9.
7773 (define_split TFmode moves): Don't use gen_{high,low}part, create
7774 explicit SUBREGs instead.
7776 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
7778 * Makefile.in (mbchar.o): Depend on mbchar.c.
7780 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7781 Richard Henderson <rth@cygnus.com>
7783 Rewrite Sparc backend for better code generation and
7784 improved sparc64 support.
7785 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
7787 * config/sparc/sysv4.h: Likewise.
7788 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
7789 move_operand, v8plus_regcmp_op, emit_move_sequence,
7790 singlemove_string, doublemove_string, mem_aligned_8,
7791 output_move_double, output_move_quad, output_fp_move_double,
7792 move_quad_direction, output_fp_move_quad, output_scc_insn):
7794 (small_int_or_double): New predicate.
7795 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
7796 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
7797 old pic_{sethi,lo_sum}_si patterns.
7798 (mem_min_alignment): New generic function to replace
7799 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
7800 available and can test for arbitrary alignments. All callers
7802 (save_regs, restore_regs, build_big_number,
7803 output_function_prologue, output_cbranch, output_return,
7804 sparc_flat_save_restore, sparc_flat_output_function_prologue,
7805 sparc_flat_output_function_epilogue): Prettify
7807 (output_function_epilogue): Likewise and add code to output
7808 deferred case vectors.
7809 (output_v9branch): Likewise, add new arg INSN and use it to tack
7810 on branch prediction settings. All callers changed.
7811 (print_operand): Likewise and output %l44 for LO_SUMs when
7813 (sparc_splitdi_legitimate): New function to make sure DImode
7814 splits can be run properly when !arch64.
7815 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
7816 Reformat example code in comments.
7817 (set_extends): Remove UNSPEC/v8plus_clear_high case.
7818 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
7819 of deferred case vectors we need to output.
7820 (sparc_defer_case_vector): Record a case vector.
7821 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
7822 sparc_output_deferred_case_vectors): New functions to output them.
7823 (sparc_emit_set_const32): New function to form 32-bit constants in
7824 registers when that requires more than one instruction.
7825 (safe_constDI, sparc_emit_set_const64_quick1,
7826 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
7827 analyze_64bit_constant, const64_is_2insns,
7828 create_simple_focus_bits, sparc_emit_set_const64): New functions
7829 which do the same for 64-bit constants when arch64.
7830 (sparc_emit_set_symbolic_const64): New function to emit address
7831 loading for all code models on v9.
7832 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
7833 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
7834 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
7835 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
7836 inaccuracies in comments, add symbolic and text_segment operands
7837 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
7838 GENERAL_REGS in these cases as a temp REG is needed to load these
7839 addresses into a register properly.
7840 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
7842 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
7843 quads are guarenteed to have 16-byte alignment.
7844 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
7845 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
7846 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
7847 deferred case vector implementation.
7848 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
7849 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
7850 Generate "internal label - label" instead of "label - 1b".
7851 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
7852 (PREDICATE_CODES): Remove sparc_operand, move_operand,
7853 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
7855 (doublemove_string, output_block_move, output_fp_move_double,
7856 output_fp_move_quad, output_move_double, output_move_quad,
7857 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
7858 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
7859 (sparc_emit_set_const32, sparc_emit_set_const64,
7860 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
7861 mem_min_alignment, small_int_or_double): Add externs.
7862 * config/sparc/sparc.md: Document the many uses of UNSPEC and
7863 UNSPEC_VOLATILE in this backend.
7864 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
7865 unary to types which execute in it.
7866 (define_function_unit ieu_shift): Rename to ieu0.
7867 (define_function_unit ieu1): New, executes compare, call, and
7868 uncond_branch type insns.
7869 (define_function_units for type fdivs, fdivd, fsqrt): These
7870 execute in the fpu multiply unit not the adder on UltraSparc.
7871 (define_expand cmpdi): Disallow TARGET_V8PLUS.
7872 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
7873 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
7874 allows the arith_double_operand predicate and rHI constraint when
7876 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
7877 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
7878 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
7879 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
7880 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
7881 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
7882 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
7883 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
7884 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
7885 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
7886 sign_extendqihi2_insn, sign_extendqisi2_insn,
7887 sign_extendqidi2_insn, sign_extendhidi2_insn,
7888 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
7889 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
7890 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
7891 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
7892 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
7893 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
7894 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
7895 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
7896 smulsi3_highpart_v8plus, unnamed subreg mult,
7897 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
7898 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
7899 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
7900 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
7901 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
7902 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
7903 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
7904 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
7905 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
7906 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
7907 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
7908 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
7909 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
7910 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
7911 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
7912 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
7913 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
7914 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
7915 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
7916 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
7917 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
7918 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
7919 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
7920 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
7921 call_address_untyped_struct_value_sp32,
7922 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
7923 call_value_symbolic_sp32, call_value_address_sp64,
7924 call_value_symbolic_sp64, branch_sp32, branch_sp64,
7925 flush_register_windows, goto_handler_and_restore,
7926 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
7927 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
7928 return_addsi, return_di, return_adddi, return_sf, all call+jump
7929 peepholes, trap, unnamed trap insns): Prettify output strings.
7930 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
7931 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
7932 Likewise and force + implement splits for integer cases.
7933 (define_insn return_sf_no_fpu): Likewise and allow to match when
7934 no-fpu because of our subreg SFmode splits.
7935 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
7936 zero_extendqidi2_insn, zero_extendhidi2_insn,
7937 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
7938 input_operand for second operand.
7939 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
7940 reg_or_0_operand for operand 2 so new splits can use it.
7941 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
7942 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
7944 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
7945 CONST_DOUBLEs for operand 2.
7946 (define_insn move_label_di): Likewise and label distance
7947 optimization because it no longer works with new deferred case
7948 vector scheme. To be revisited.
7949 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
7950 and allow reg_or_0_operand and J constraint for second operand.
7951 (define_insn jump): Set branch predict taken on V9.
7952 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
7953 new deferred case vector scheme.
7954 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
7955 (define_insn negdi2_sp32): Force + implement splits.
7956 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
7957 one_cmplsi2_not_liveg0 respectively, and create expander of original
7958 names which emit special rtl for TARGET_LIVE_G0.
7959 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
7960 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
7961 gen_compare_reg, FAIL instead.
7962 (define_insn sgtu, sleu): Likewise and check gen_s*() return
7963 values when trying to reverse condition codes, if they FAIL then
7965 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
7966 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
7967 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
7968 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
7969 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
7970 set output string to # to indicate they are mandatory splits.
7971 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
7972 pic_sethi_di, move_pic_label_si): Remove.
7973 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
7974 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
7976 (define_expand movsi_pic_label_ref, define_insn
7977 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
7978 expander and insns to handle PIC label references and deferred
7980 (define_insn get_pc_via_rdpc): Comment out as it is no longer
7982 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
7983 Rewrite to not use emit_move_sequence, make use of new constant
7984 formation code, and new splits for all multi-insn cases.
7985 (define_insn movqi_insn): Remove sethi case, it can never happen.
7986 Use reg_or_zero_operand instead of const0_rtx explicit test,
7987 use input_operand instead of move_operand for source, and use
7988 general_operand now for dest.
7989 (define_insn movhi_insn): Similar but leave sethi case.
7990 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
7991 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
7992 movhi_lo_sum respectively, prettify output string.
7993 (define_insn movsi_zero_liveg0): New pattern to put zero into a
7994 register when needed on TARGET_LIVE_G0.
7995 (define_insn movsi_insn): Use general_operand and input_operand
7996 for dest and src respectively. Simplify applicability test.
7997 Prettify output strings, and add clr alternative for J
7999 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
8000 deprecated std and reg-reg DI moves): Remove and...
8001 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
8002 implementation which uses forced splits for all non-single insn
8004 (define_split DI move cases on !arch64): New splits to handle all
8005 situations of 64-bit double register DImode on 32bit, and
8006 unaligned registers and memory addresses for all subtargets.
8007 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
8009 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
8010 input_operand for dest and src respectively, prettify output
8012 (define_insn movdf_insn, movdf_no_e_insn, store_df,
8013 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
8015 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
8016 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
8017 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
8018 movtf_no_e_insn_sp64) Replace with new
8019 implementation which uses forced splits for all non-single insn
8021 (define_split DF move cases): New splits in similar vein to DI
8023 (define_insn sethi_di_medlow, sethi_di_medium_pic,
8024 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
8025 movdi_sp64_insn): Remove old v9 code model and constant loading
8027 (define_insn pic_lo_sum_di, pic_sethi_di,
8028 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
8029 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
8030 embmedany_sethi, embmedany_losum, embmedany_brsum,
8031 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
8032 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
8033 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
8034 scheme, using unspecs, secondary reloads, and one to one sparc
8035 insn to rtl insn mapping for better scheduling and code gen.
8036 (define_expand reload_indi, reload_outdi): Reload helpers for
8037 MEDANY and EMBMEDANY symbol address loading cases which require a
8039 (define_expand movsicc): Remove v8plus_regcmp cases.
8040 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
8041 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
8042 cmp_diqi_trunc_set): New patterns used by some of the new scc
8044 (define_insn xordi3_sp64_dbl): New pattern used for constant
8045 formation when crossing from 32-bit targets.
8046 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
8048 (define_insn addx, subx): Make visible and prettify.
8049 (define_insn adddi3_insn_sp32): Likewise and force split.
8050 (define_insn addx_extend, subx_extend, unnamed): New patterns for
8051 64bit scc split usage.
8052 (define_insn unnamed plusDI zero_extend, unnamed minusDI
8053 zero_extend, subdi3): Force and implement splits.
8055 * final.c (final_scan_insn): Don't output labels if target
8056 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
8059 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
8060 don't forget to walk inside SEQUENCESs too as these are what the
8061 delay slot scheduler will create.
8063 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
8065 * alpha.md (extxl+1,+2): New patterns to work around
8068 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
8070 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
8071 caused bad assembly code to be generated.
8073 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
8075 * netbsd.h: Fix typo.
8077 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
8079 * config.sub: Fix typo.
8081 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
8083 * invoke.texi (Environment Variables): Typo: Change "ascpects"
8085 (Running Protoize): Typo: Change "ther" into "other".
8087 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
8089 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
8090 * m68k/netbsd.h: Likewise.
8091 * ns32k/netbsd.h: Likewise.
8092 * sparc/netbsd.h: Likewise.
8094 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
8096 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
8097 * ginclude/va-clipper.h (va_list): Likewise.
8099 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
8101 * rs6000.c (rs6000_override_options): If big endian and -Os, use
8102 load/store multiple instructions unless user overrides.
8104 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
8106 * ns32k/netbsd.h: Fix typo.
8108 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
8110 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
8111 labels with .debugsym if no parallel insns.
8113 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
8115 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
8116 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
8118 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
8120 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
8121 (AR_FOR_TARGET): Define.
8123 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
8125 * dyn-string.h: New file.
8126 * dyn-string.c: Likewise.
8127 * Makefile.in (OBJS): Add dyn-string.o.
8128 (dwarf2out.o): Add dyn-string.h dependency.
8129 (dyn-string.o): List dependencies.
8130 * dwarf2out.c: Include dyn-string.h.
8131 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
8132 (addr_const_to_string): Take a dyn_string_t, not a char* as a
8133 prototype. Use dyn_string_append rather than strcat, throughout.
8134 (addr_to_string): Use dyn_string_t.
8136 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
8138 Function entry/exit profiling instrumentation:
8139 * expr.h (profile_function_entry_libfunc,
8140 profile_function_exit_libfunc): Declare new variables.
8141 * optabs.c: Define them here.
8142 (init_optabs): Initialize them.
8143 * tree.h (struct tree_decl): New flag
8144 no_instrument_function_entry_exit.
8145 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
8146 * c-decl.c (duplicate_decls): Merge it.
8147 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
8148 (init_attributes): Use it for "no_instrument_function".
8149 (decl_attributes): Handle it, for functions that have not yet been
8150 compiled. Set decl flag.
8151 * flags.h (flag_instrument_function_entry_exit): Declare new
8153 * toplev.c (flag_instrument_function_entry_exit): Define it here.
8154 (f_options): New option "instrument-functions".
8155 * function.h (struct function): New field instrument_entry_exit.
8156 * function.c (current_function_instrument_entry_exit): New
8158 (push_function_context_to, pop_function_context_from): Save and
8160 (expand_function_start): Set current_ variable, maybe emit return
8161 label and entry profile call.
8162 (expand_function_end): Maybe emit exit profile call.
8164 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
8166 * i386.md (movqi): When optimizing a load of (const_int 1) into a
8167 NON_QI_REG_P, pretend the register is SImode.
8169 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
8171 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
8172 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
8173 manufacturer id for ns32k.
8174 * configure: Regenerated.
8175 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
8176 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
8177 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
8178 * config/m68k/netbsd.h: Same.
8179 * config/ns32k/netbsd.h: Same.
8180 * config/sparc/netbsd.h: Same.
8182 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
8184 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
8185 or UNROLL_COMPLETELY loop that starts with a jump to its
8188 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
8190 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
8191 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
8192 (print_operand, case 'B'): Don't fall through.
8193 (print_operand, case 'S'): Correct mask begin/end computation.
8194 Use HOST_BITS_PER_WIDE_INT.
8195 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
8196 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
8197 * rs6000/aix41.h (CPP_PREDEFINES): Same.
8198 * rs6000/aix43.h (CPP_PREDEFINES): Same.
8200 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
8202 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
8203 constraint from second alternative.
8205 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
8207 * configure.in: Fix --without/--disable cases for local-prefix,
8208 gxx-include-dir and checking.
8210 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8212 * configure.in (enable_haifa): Set by default for sparc64 too.
8215 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
8217 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
8218 * i386/winnt.c (associated_type): New fn.
8219 (i386_pe_valid_type_attribute_p): New fn.
8220 (i386_pe_check_vtable_importexport): Remove.
8221 (i386_pe_dllexport_p): Use associated_type.
8222 (i386_pe_dllimport_p): Likewise.
8224 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
8225 * i386.c (i386_valid_type_attribute_p): Also accept
8226 attributes for METHOD_TYPEs.
8228 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
8230 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
8232 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
8234 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
8236 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
8237 them from generating a new base name for each occurence of
8240 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
8242 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
8244 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
8248 * cplus-dem.c (type_kind_t): New type.
8249 (demangle_template_value_parm): Add type_kind_t parameter. Rely
8250 on this paramter, rather than demangling the type again.
8251 (demangle_integral_value): Pass tk_integral.
8252 (demangle_template_: Pass the value returned from do_type.
8253 (do_type): Return a type_kind_t. Pass tk_integral to
8254 demangle_template_value_parm for array bounds.
8255 (demangle_fund_type): Likewise.
8257 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
8259 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
8262 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
8264 * pa.c (move_operand): Accept CONSTANT_P_RTX.
8266 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
8268 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
8270 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
8273 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
8275 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
8276 (DEBUGGER_ARG_OFFSET): Likewise.
8278 * mn10300.md (movsf): Remove last change. Not needed.
8280 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
8282 * c-lex.c (yylex): Fix boundary conditions in character literal and
8283 string literal loops.
8285 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
8287 * longlong.h (count_leading_zeros): Sparclite scan instruction was
8288 being invoked incorrectly.
8290 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
8291 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
8293 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
8294 * configure.in: Added i[34567]86-*-win32
8295 * config.sub: Ditto.
8296 * configure: Rebuilt.
8298 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
8300 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
8301 the frame pointer and compiling PIC code and reload has not completed.
8303 * i386.c (output_to_reg): Add code to emulate non-popping DImode
8306 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
8308 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
8310 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
8312 * Makefile.in (install-info): Only try to update the info
8313 directory file if it exists in the first place.
8315 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
8317 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
8319 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
8321 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
8322 CONST_DOUBLE source.
8324 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
8326 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
8327 strings as the insertion of USER_LABEL_PREFIX.
8328 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
8330 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
8333 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
8335 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
8336 already defined type.
8338 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
8340 * expr.c (check_max_integer_computation_mode): Allow conversions
8341 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
8342 (expand_expr): Likewise.
8344 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
8346 * expr.c (expand_expr): Expand RETURN_EXPR.
8348 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
8350 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
8352 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
8354 * dwarf2out.c (output_aranges): Call stripattributes
8355 for TEXT_SECTION references.
8356 (output_line_info): Likewise.
8358 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8360 * profile.c (branch_prob): Call allocate_reg_info after outputting
8361 profile rtl in instrument_arcs.
8363 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
8365 * fixinc.irix (math.h): Install wrapper instead of copying.
8367 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
8369 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
8370 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
8371 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
8372 lang_flag_0. Added documentation in the flag table.
8374 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
8376 * cccp.c (do_include): Fix vax c style include handling.
8378 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
8380 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
8382 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
8384 * fold-const.c (non_lvalue): Don't deal with null pointer
8386 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
8388 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
8390 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
8391 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
8392 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
8393 (u_short_cint_operand): Same.
8394 (reg_or_cint_operand): Same.
8395 (logical_operand): Same.
8396 (input_operand): Same.
8397 (reg_or_short_operand): Use u_short_cint_operand.
8399 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
8401 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
8402 but keep the insns and splits. Adjust so when the ultimate destination
8403 is memory, use cvtql.
8405 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
8407 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
8409 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
8411 * gcc.c (do_spec): Call "error" not "warning".
8413 * configure.in: Fix minor problems with gas feature detection code.
8414 * configure: Rebuilt.
8416 * gcc.c (do_spec): Issue a warning for '%[]' usage.
8419 * gcc.c: Delete %[spec] support.
8420 (do_spec_1, case '('): Likewise.
8421 (do_spec_1, case '['): Call error.
8423 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
8425 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
8426 (CPP_SUBTARGET_SPEC): Default to empty string.
8427 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
8428 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
8429 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
8430 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
8432 * alpha/linux.h (CPP_PREDEFINES): Tidy.
8433 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
8434 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
8435 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
8436 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
8437 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
8438 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
8439 * alpha/vxworks.h: Likewise.
8441 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
8443 * mips.md (reload_outsi): Added missing REGNO call.
8444 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
8446 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
8447 another match_operator and compare the codes.
8449 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
8451 * MIPS multiply pattern fixes:
8452 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
8453 Add union classes for HI, LO, or HILO plus general registers.
8454 (GENERATE_MADD): Deleted.
8455 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
8456 Add TARGET_MAD to condition.
8457 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
8458 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
8459 "*d" for accumulator, to give preference to LO initially but not
8462 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
8464 * configure.in (enable_c_mbchar): New configure option.
8465 (extra_cpp_objs): Always available now.
8467 * cexp.y (mbchar.h): #include it.
8468 (yylex): Handle Multibyte characters in character literals.
8470 * cccp.c (mbchar.h): #include it.
8471 (main): Set character set based on LANG environment variable.
8472 (rescan): Handle multibyte characters in comments.
8473 (skip_if_group): See above.
8474 (validate_else): See above.
8475 (skip_to_end_of_comment): See above.
8476 (macarg1): See above.
8477 (discard_comments): See above.
8478 (rescan): Handle multibyte characters in string and character literals.
8479 (collect_expansion): See above.
8480 (skip_quoted_string): See above.
8481 (macroexpand): See above.
8482 (macarg1): See above.
8483 (discard_comments): See above.
8484 (change_newlines): See above.
8486 * c-lex.c (mbchar.h): #include it.
8487 (GET_ENVIRONMENT): New macro.
8488 (init_lex): Set character set based on LANG environment variable.
8489 (yylex): Handle multibyte characters in character literals.
8490 (yylex): Handle multibyte characters in string literals.
8492 * Makefile.in (mbchar.o): New target.
8493 (cccp$(exeext)): @extra_cpp_objs@ is always available.
8494 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
8496 * mbchar.[ch]: New files for multibyte character handling.
8498 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8500 * jump.c (jump_optimize): When simplifying noop moves and
8501 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
8502 the PUSHes to rewrite in second loop as we did in the first.
8504 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
8506 * cplus-dem.c (demangle_nested_args): Make function definition
8507 static to match the prototype.
8509 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
8511 * alloca.c: Respect USE_C_ALLOCA.
8512 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
8513 * gengenrtl.c (xmalloc): Likewise.
8515 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
8517 * loop.h (struct induction): Add no_const_addval.
8518 * loop.c (the_movables, reg_address_cost): New variables.
8519 (init_loop): Init reg_address_cost.
8520 (loop_optimize): Call end_alias_analysis.
8521 (scan_loop): Init the_movables.
8522 (record_giv): Init induction->no_const_addval.
8523 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
8524 [REG]: Rearrange loop search test to catch more cases.
8525 (general_induction_var): Return success not benefit; take an extra
8526 argument for that. Change all callers.
8527 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
8528 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
8529 [default]: Search the_movables for additional combinations.
8530 (sge_plus_constant, sge_plus): New functions.
8531 (express_from_1): New function.
8532 (express_from): Always define. Rewrite using express_from_1.
8533 (combine_givs_p): Handle more cases. Ignore address cost.
8534 (cmp_combine_givs_stats): New function.
8535 (combine_givs_used_once, combine_givs_benefit_from): New functions.
8536 (combine_givs): Rewrite to do best-fit combination.
8538 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
8539 (fold): Do a complete (A*C)+(B*C) association check.
8541 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
8543 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
8545 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
8547 * mn10300.c (MODES_TIEABLE_P): Fix typo.
8549 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
8551 * tree.c (valid_machine_attribute): Only create a new type variant if
8552 there is a decl to use it.
8554 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
8556 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
8559 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
8561 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
8564 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
8566 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
8567 Simplify tests for clearing an address register.
8568 (expand_prologue): Corresponding changes.
8570 * mn10300.md (movXX patterns): Make sure the destination is an
8571 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
8572 (logical patterns): Split into expanders + patterns
8573 (zero and sign extension patterns): Similarly.
8574 (shift patterns): Similarly.
8576 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
8578 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
8579 for the sequence, recording base values.
8581 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
8583 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
8585 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
8587 * gcc.c: Remove ANSI-C ism from --help code.
8589 * toplev.c: Support --help with USE_CPPLIB.
8591 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
8593 * configure.in: Rework gas feature code to work with symlink based
8596 * extend.texi: Clarify some issues related to local variables
8597 assigned to explicit registers.
8599 * mn10300.md (mulsi): Turn into expander + pattern.
8601 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
8604 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
8606 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
8608 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
8610 * version.c: Bump again to distinguish mainline tree from the
8613 See ChangeLog.0 for earlier changes.
8616 add-log-time-format: current-time-string