1 Wed Dec 9 19:36:57 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3 * reload1.c (reload_combine, reload_combine_note_store):
4 Make STORE_RUID always valid.
5 (reload_combine): Check if BASE is clobbered too early.
7 Wed Dec 9 09:53:58 1998 Nick Clifton <nickc@cygnus.com>
9 * reload.c (find_reloads): Display the insn that cannot be
12 Wed Dec 9 12:15:26 1998 Dave Brolley <brolley@cygnus.com>
14 * cccp.c (create_definition): Fix end of bufer logic.
16 Wed Dec 9 10:15:45 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
18 * except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
19 pointer parameters changed to use the PARAMS() macro.
21 Wed Dec 9 09:12:40 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
23 * except.h (struct handler_info): Add handler_number field.
24 * except.c (gen_exception_label): EH labels no longer need to be
25 on the permanent obstack.
26 (get_new_handler): Set the label number field.
27 (output_exception_table_entry): Regenerate handler label reference
28 from the label number field.
29 (init_eh): Remove a blank line.
30 * integrate.c (get_label_from_map): Labels no longer need to be
31 on the permanent obstack.
33 Tue Dec 8 22:04:33 1998 Jim Wilson <wilson@cygnus.com>
35 * i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
36 only when OUTER_CODE is SET.
38 Tue Dec 8 22:47:15 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
40 * loop.c (strength_reduce): If scan_start points to the loop exit
41 test, be wary of subversive use of gotos inside expression statements.
42 Don't set maybe_multiple for a backward jump that does not
43 include the label under consideration into its range.
44 * unroll.c (biv_total_increment): Make use of maybe_multiple field.
46 Tue Dec 8 22:33:18 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
48 * explow.c (plus_constant_wide): Don't immediately return with
49 result of recursive call.
51 Tue Dec 8 15:32:56 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
53 * eh-common.h (struct eh_context): Add table_index for rethrows.
55 * rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
56 (SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
57 processed when inlined or unrolled (ie duplicated in some way).
59 * rtl.c (reg_note_name): Add strings for new reg_note enums.
61 * expr.h (rethrow_libfunc): New library decl.
63 * optabs.c (rethrow_libfunc): Initialize.
65 * except.h (struct eh_entry): Add new field 'rethrow_label'.
66 (new_eh_region_entry): No longer exported from except.c.
67 (duplicate_handlers): Renamed to duplicate_eh_handlers and
69 (rethrow_symbol_map, rethrow_used): New exported functions.
70 (eh_region_from_symbol): New exported function.
72 * except.c (create_rethrow_ref): New function to create a single
73 SYMBOL_REF for a rethrow region.
74 (push_eh_entry): Initialize a rethrow ref.
75 (func_eh_entry): Add a rethrow_label field.
76 (new_eh_region_entry): Make static, and initialize the rethrow entry.
77 (duplicate_eh_handlers): Create a new region, and remap labels/symbols.
78 (eh_region_from_symbol): Find an EH region based on its rethrow symbol.
79 (rethrow_symbol_map): Given a label map, maps a rethrow symbol for
80 a region into an appropriate new symbol.
81 (rethrow_used): Indicate whether a rethrow symbol has been referenced.
82 (expand_eh_region_end): Don't issue jump around code for new-exceptions.
83 (end_catch_handler): Emit a barrier for new-exceptions since
84 control can never drop through the end of a catch block.
85 (expand_end_all_catch): new-exceptions never fall through a catch
87 (expand_rethrow): use __rethrow routine for new exceptions.
88 (output_exception_table_entry): Generate rethrow labels, if needed.
89 (output_exception_table): Generate start and end rethrow labels.
90 (init_eh): Create rethrow symbols for beginning and end of table.
91 (scan_region): Don't eliminate EH regions which are the targets of
94 * flow.c (make_edges): Add different edges for rethrow calls,
95 identified by having the REG_EH_RETHROW reg label.
96 (delete_unreachable_blocks): Don't delete regions markers which are
97 the target of a rethrow.
99 * integrate.c (save_for_inline_eh_labelmap): New callback routine to
100 allow save_for_inline_copying to call duplicate_eh_handlers.
101 (save_for_inline_copying): Call duplicate_eh_handlers instead of
102 exposing internal details of exception regions.
103 (copy_for_inline): Check if SYMBOL_REFs need adjustment.
104 (expand_inline_function_eh_labelmap): New callback routine to
105 allow expand_inline_function to call duplicate_eh_handlers.
106 (expand_inline_function): Call duplicate_eh_handlers instead of
107 exposing internal details of exception regions.
108 (copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
111 * libgcc2.c (find_exception_handler): Generalize to enable it to
112 pick up processing where it left off last time for a rethrow.
113 (__unwinding_cleanup): New function. debug hook which is called before
114 unwinding when __throw finds there is nothing but cleanups left.
115 (throw_helper): Common parts of __throw extracted out for reuse.
116 (__throw): Common parts moved to throw_helper.
117 (__rethrow): New function for performing rethrows.
119 Tue Dec 8 13:11:04 1998 Jeffrey A Law (law@cygnus.com)
121 * reload1.c (current_function_decl): Tweak declaration.
123 Tue Dec 8 10:23:52 1998 Richard Henderson <rth@cygnus.com>
125 * c-decl.c (flag_isoc9x): Default off.
126 (c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
127 * cccp.c (print_help, main): Likewise.
128 * gcc.c (default_compilers): Update for -std=gnu*.
130 Tue Dec 8 01:14:46 1998 Jeffrey A Law (law@cygnus.com)
132 * Makefile.in (DEMANGLE_H): Change location to shared demangle.h.
133 * demangle.h: Deleted.
135 * reload1.c (current_function_decl): Declare.
137 Tue Dec 8 11:58:51 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
139 * cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.
141 Tue Dec 8 09:28:36 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
143 * dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.
145 1998-12-08 Ulrich Drepper <drepper@cygnus.com>
147 * configure.in: Test for availability of putc_unlocked, fputc_unlocked,
149 * configure: Rebuilt.
150 * system.h: If the *_unlocked functions are available use them
151 instead of the locked counterparts by defining macros.
152 * config.in: Regenerated.
154 Tue Dec 8 00:34:05 1998 Mike Stump <mrs@wrs.com>
156 * i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
157 wrong and should only be used for dump related things, not
158 debugging information, instead main_input_filename should be used.
159 Also, reuse output_file_directive if possible.
160 * i386/aix386ng.h (ASM_FILE_START): Likewise.
161 * i386/isc.h (ASM_FILE_START): Likewise.
162 * i386/win-nt.h (ASM_FILE_START): Likewise.
163 * i386/sun386.h (ASM_FILE_START): Likewise.
165 Mon Dec 7 23:56:28 1998 Robert Lipe <robertl@dgii.com>
167 * configure.in (mips*-*-linux*): Handle big and little endian
169 * configure: Rebuilt.
171 Mon Dec 7 23:14:51 1998 Mike Stump <mrs@wrs.com>
173 * emit-rtl.c: Fix typo.
175 Mon Dec 7 23:07:38 1998 Nathan Sidwell <nathan@acm.org>
177 * reload1.c (eliminate_regs): Don't do anything, if we're not
180 Mon Dec 7 15:27:09 1998 DJ Delorie <dj@cygnus.com>
182 * mips/mips.h (ENCODE_SECTION_INFO): Handle TARGET_EMBEDDED_DATA.
184 * mips/mips.c (mips_select_section): Add comment.
186 Mon Dec 7 17:55:06 1998 Mike Stump <mrs@wrs.com>
188 * cccp.c (ignore_escape_flag): Add support for \ as `natural'
189 characters in file names in #line to be consistent with #include
190 handling. We support escape prcessing in the # 1 "..." version of
191 the command. See also support in cp/lex.c.
192 (handle_directive): Likewise.
195 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
197 * cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
198 so it'll work on non-ASCII platforms. Always consider $ an
199 identifier character. Take no arguments.
200 (cpp_reader_init): Call initialize_char_syntax with no
202 (cpp_start_read): Don't call initialize_char_syntax again.
203 Clear is_idchar['$'] and is_idstart['$'] if not
204 opts->dollars_in_ident.
206 * cpplib.h (struct cpp_reader): Replace void *data element by
207 cpp_options *opts. Rearrange elements to make gdb printout
208 less annoying (put buffer stack at end).
209 (CPP_OPTIONS): Get rid of now-unnecessary cast.
211 * cppmain.c: s/data/opts/ when initializing cpp_reader
213 * c-decl.c: Likewise.
214 * objc/objc-act.c: Likewise.
215 * fix-header.c: Likewise.
217 1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
219 * cpplib.h (struct cpp_buffer): Replace dir and dlen members
220 with a struct file_name_list pointer.
221 (struct cpp_reader): Add pointer to chain of `actual
222 directory' include searchpath entries.
223 (struct file_name_list): Add *alloc pointer for the sake of
224 the actual-directory chain.
226 Move definition of HOST_WIDE_INT here.
227 (cpp_parse_escape): Change prototype to match changes in
230 * cppfiles.c (actual_directory): New function.
231 (finclude): Use it to initialize the buffer's actual_dir
233 (find_include_file): We don't need to fix up max_include_len
236 * cpplib.c (do_include): Don't allocate a file_name_list on
237 the fly for current directory "" includes, use the one that's
238 been preallocated in pfile->buffer->actual_dir. Hoist out
239 duplicate code from the search_start selection logic.
240 (cpp_reader_init): Initialize pfile->actual_dirs.
242 Remove definition of HOST_WIDE_INT. Change calls
243 to cpp_parse_escape to match changes in cppexp.c (note
244 hardcoded MASK, which is safe since this is the source
247 * cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
248 to handle wide character constants in #if directives. The
249 function now returns a HOST_WIDE_INT, and takes a third
250 argument which is a binary mask for all legal values (0x00ff
251 for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.) Define
252 MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK. Change callers of
253 cpp_parse_escape to match. [Fixes c-torture/execute/widechar-1.c]
255 Mon Dec 7 15:38:25 1998 Dave Brolley <brolley@cygnus.com>
257 * gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.
259 Mon Dec 7 15:38:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
261 * c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
262 * cppalloc.c: Move function `xcalloc' from cpplib.c to here.
263 * cpplib.c: Move function `xcalloc' from here to cppalloc.c.
265 Mon Dec 7 11:30:49 1998 Nick Clifton <nickc@cygnus.com>
267 * final.c (output_asm_name): Use tabs to seperate comments from
270 Include instruction lengths (if defined) in output.
272 Mon Dec 7 10:53:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
274 * loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
275 in the loop_info structure.
277 Mon Dec 7 11:04:40 1998 Catherine Moore <clm@cygnus.com>
279 * configure.in: (arm*-*-ecos-elf): New target.
280 * configure: Regenerated.
281 * config/arm/elf.h (ASM_WEAKEN_LABEL): Define.
282 * config/arm/ecos-elf.h: New file.
283 * config/arm/unknown-elf.h (TARGET_VERSION): Check
286 Mon Dec 7 16:15:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
288 * sh.c (output_far_jump): Emit braf only for TARGET_SH2.
290 Sun Dec 6 04:19:45 PST 1998 Jeff Law (law@cygnus.com)
292 * version.c: Bump for snapshot.
294 Sun Dec 6 05:16:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
296 * loop.c (check_dbra_loop): New argument loop_info. Update fields
299 Sun Dec 6 03:40:13 PST 1998 Jeff Law (law@cygnus.com)
301 * version.c: Bump for snapshot.
303 Sun Dec 6 07:49:29 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
305 * gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
306 compressed reports are ok and preferred over URLs
308 Sun Dec 6 07:45:33 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
310 * invoke.texi (Warning Options): Soften the tone of -pedantic
312 Sun Dec 6 00:20:44 1998 H.J. Lu (hjl@gnu.org)
314 * print-rtl.c (print_rtx): Add prototype.
316 * unroll.c (iteration_info): Make it static.
318 Sun Dec 6 01:19:46 1998 Richard Henderson <rth@cygnus.com>
320 * alias.c (memrefs_conflict_p): A second ANDed address
321 disables the aligned address optimization.
323 Sat Dec 5 18:48:25 1998 Richard Henderson <rth@cygnus.com>
325 * alpha.c (alpha_emit_set_const_1): Fix parenthesis error
328 Sat Dec 5 15:14:52 1998 Jason Merrill <jason@yorick.cygnus.com>
330 * i960.h (BOOL_TYPE_SIZE): Define.
332 Sun Dec 6 00:28:16 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
334 * config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
335 from old valid_parallel_operands_4.
336 (valid_parallel_operands_4): Check that operands for 4 operand
337 parallel insns are valid, excluding load/store insns.
338 * config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
339 * config/c4x/c4x.md (*movqf_parallel, *movqi_parallel): Use
340 valid_parallel_load_store instead of valid_parallel_operands_4.
341 (*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber,
342 *negqf2_movqf_clobber, *absqi2_movqi_clobber,
343 *fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
344 *notqi_movqi_clobber): Use valid_parallel_operands_4.
345 (*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
346 *ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
347 *subqi3_movqi_clobber): Use valid_parallel_operands_5.
349 Sat Dec 5 23:52:01 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
351 * config/c4x/c4x.c (iteration_info): Delete extern.
353 Fri Dec 4 20:15:57 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
355 * tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.
357 * final.c (cleanup_subreg_operands): Delete some unused code.
359 * recog.h (MAX_RECOG_ALTERNATIVES): New macro.
360 (struct insn_alternative): New structure definition.
361 (recog_op_alt): Declare variable.
362 (preprocess_constraints): Declare function.
363 * recog.c (recog_op_alt): New variable.
364 (extract_insn): Verify number of alternatives is in range.
365 (preprocess_constraints): New function.
366 * reg-stack.c: Include recog.h.
367 (constrain_asm_operands): Delete.
368 (get_asm_operand_lengths): Delete.
369 (get_asm_operand_n_inputs): New function.
370 (record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
371 N_OUTPUTS args. All callers changed.
372 Compute number of inputs and outputs here by calling
373 get_asm_operand_n_inputs.
374 Instead of constrain_asm_operands, call extract_insn,
375 constrain_operands and preprocess_constaints. Use information
376 computed by these functions throughout.
377 (record_reg_life): Delete code that is unused due to changes in
379 (subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
380 N_INPUTS and N_OUTPUTS args. All callers changed.
381 Similar changes as in record_asm_reg_life.
382 (subst_stack_regs): Move n_operands declaration into the if statement
384 Delete code that is unused due to changes in subst_asm_stack_regs.
385 * stmt.c (expand_asm_operands): Verify number of alternatives is in
387 * Makefile.in (reg-stack.o): Depend on recog.h.
389 Fri Dec 4 02:23:24 1998 Jeffrey A Law (law@cygnus.com)
391 * except.c (set_exception_version_code): Argument is an "int".
393 Fri Dec 4 01:29:28 1998 Jeffrey A Law (law@cygnus.com)
395 * configure.in (hppa2*-*-*): Handle like hppa1.1-*-* for now.
396 * configure: Rebuilt.
398 Fri Dec 4 01:29:28 1998 Robert Lipe <robertl@dgii.com>
400 * configure.in (mipsel-*-linux*): New target.
401 * mips/linux.h: New file, based on other Linux targets.
403 Thu Dec 3 11:19:50 1998 Mike Stump <mrs@wrs.com>
405 * gthr-vxworks.h (__ehdtor): Fix memory leak. The delete hook
406 runs in the context of the deleter, not the deletee, so we must
407 use taskVarGet to find the correct memory to free.
408 (__gthread_key_create): Initialize the task
409 variable subsystem so that the task variable is still active when
410 the delete hook is run.
412 1998-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
414 * pdp11.h: Use optimize_size for space optimizations.
416 * pdp11.md: Likewise.
418 * pdp11.h (TARGET_40_PLUS): Fix typo.
420 Thu Dec 3 11:48:32 1998 Jeffrey A Law (law@cygnus.com)
422 * local-alloc.c (block_alloc): Slightly retune heuristic to widen
425 Thu Dec 3 22:30:18 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
427 * alias.c (addr_side_effect_eval): New function.
428 (memrefs_conflict_p): Use it.
429 * rtl.h (addr_side_effect_eval): Prototype it.
431 1998-12-02 Joseph S. Myers <jsm28@cam.ac.uk>
433 * pdp11.md (extendsfdf2): Fix mode mismatch in SET.
435 Wed Dec 2 11:23:07 1998 Jim Wilson <wilson@cygnus.com>
437 * reload.c (find_reloads): When force const to memory, put result
438 in substed_operand not *recog_operand_loc.
440 1998-12-02 Ulrich Drepper <drepper@cygnus.com>
442 * c-lex.c: Fix indentation from last patch.
443 Remove trailing whitespace.
446 Wed Dec 2 10:11:12 1998 Jeffrey A Law (law@cygnus.com)
448 * flow.c (delete_block): Call set_last_insn after we have reset
449 NEXT_INSN (kept_tail).
451 Wed Dec 2 00:47:31 1998 Jeffrey A Law (law@cygnus.com)
453 * mips.md (trap_if): Use "$0" for the value zero.
455 Tue Dec 1 20:49:49 1998 Ulrich Drepper <drepper@cygnus.com>
456 Stephen L Moshier <moshier@world.std.com>
457 Richard Henderson <rth@cygnus.com>
459 * c-common.c (declare_function_name): Declare predefinied variable
462 * c-decl.c (flag_isoc9x): Set to 1 by default.
463 (c_decode_option): Handle -std= option. Remove -flang-isoc9x.
464 (grokdeclarator): Always emit warning about implicit int for ISO C 9x.
466 * c-parse.in: Allow constructors in ISO C 9x.
467 Rewrite designator list handling.
468 Allow [*] parameters.
469 Don't warn about comma at end of enum definition for ISO C 9x.
471 * cccp.c (c9x): New variable.
472 (rest_extension): New variable.
473 (print_help): Document new -std= option.
474 (main): Recognize -std= option. Set c9x appropriately.
475 (create_definition): Recognize ISO C 9x vararg macros.
477 * gcc.c (default_compilers): Adjust specs for -std options.
478 (option_map): Add --std.
479 (display_help): Document -std.
481 * toplev.c (documented_lang_options): Add -std and remove
484 * c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
485 or REAL_VALUE_HTOF based on base of the constants.
486 * fold-const.c (real_hex_to_f): New function. Replacement function
487 for hex FP conversion if REAL_ARITHMETIC is not defined.
488 * real.c (asctoeg): Add handling of hex FP constants.
489 * real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
492 Tue Dec 1 16:45:49 1998 Stan Cox <scox@cygnus.com>
494 * mips.md (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
495 -mcheck-range-division/-mcheck-zero-division checking. Avoid as macro
496 expansion. Use hi/lo as destination register.
498 (divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
499 umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
500 Avoid as macro expansion. Use hi/lo as destination register.
502 * mips.h (MASK_CHECK_RANGE_DIV): New.
503 (MASK_NO_CHECK_ZERO_DIV): New.
504 (ELIMINABLE_REGS): Added GP_REG_FIRST + 31.
505 (CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): Allow for getting
506 return address for leaf functions out of r31 to support
507 builtin_return_address.
509 Tue Dec 1 15:03:30 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
511 * jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
512 NEXT_INSN(x) to check insn x.
514 Tue Dec 1 15:20:44 1998 Jeffrey A Law (law@cygnus.com)
516 * flow.c (delete_block): Call set_last_insn if we end up deleting the
517 last insn in the rtl chain.
519 * reload1.c (reload): Do not set reload_completed or split insns
521 * toplev.c (rest_of_compilation): Set reload_completed after
522 reload returns. Split insns after reload_cse has run.
524 Tue Dec 1 11:55:04 1998 Richard Henderson <rth@cygnus.com>
526 * final.c (final_scan_insn): Abort if block_depth falls below 0.
528 Tue Dec 1 10:23:16 1998 Nick Clifton <nickc@cygnus.com>
530 * config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.
532 Tue Dec 1 10:22:18 1998 Nick Clifton <nickc@cygnus.com>
534 * config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
535 use of user-label_prefix.
537 Tue Dec 1 17:58:26 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
539 * reload1.c (emit_reload_insns): Clear spill_reg_store
540 when doing a new non-inherited reload from the same pseudo.
542 * local-alloc.c (function_invariant_p): New function.
543 (update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
544 to decide if an equivalence should be recorded.
545 * reload1.c (num_eliminable_invariants): New static variable.
546 (reload): Set it. Use function_invariant_p instead of CONSTANT_P
547 to decide if an equivalence should be recorded.
549 (calculate_needs_all_insns): Skip insns that only set an equivalence.
550 Take num_eliminable_invariants into account when deciding
551 if register elimination should be done.
552 (reload_as_needed): Take num_eliminable_invariants into account
553 when deciding if register elimination should be done.
554 (eliminate_regs): Handle non-constant reg_equiv_constant.
555 * rtl.h (function_invariant_p): Declare.
557 Mon Nov 30 02:00:08 PST 1998 Jeff Law (law@cygnus.com)
559 * version.c: Bump for snapshot.
561 Mon Nov 30 00:42:59 PST 1998 Jeff Law (law@cygnus.com)
563 * version.c: Bump for snapshot.
565 Sun Nov 29 22:59:40 1998 Jason Merrill <jason@yorick.cygnus.com>
567 * except.c (add_new_handler): Complain about additional handlers
568 after one that catches everything.
570 Sat Nov 28 10:56:32 1998 Jeffrey A Law (law@cygnus.com)
572 * configure.in (alpha*-*-netbsd): Fix typo.
573 * configure: Rebuilt.
575 Fri Nov 27 12:28:56 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
577 * system.h: Include libiberty.h.
579 * c-aux-info.c: Remove prototypes for concat/concat3. Change
580 function `concat' from fixed parameters to variable parameters,
581 as is done in libiberty. All callers of concat/concat3
582 changed to use the new `concat' with variable args.
584 * cccp.c: Remove things made redundant by libiberty.h and/or
585 conform to libiberty standards.
587 * collect2.c: Likewise.
588 * config/1750a/1750a.h: Likewise.
589 * cppalloc.c: Likewise.
590 * cppexp.c: Likewise.
591 * cppfiles.c: Likewise.
592 * cpphash.c: Likewise.
593 * cpplib.c: Likewise.
594 * dyn-string.c: Likewise.
595 * fix-header.c: Likewise.
598 * genattr.c: Likewise.
599 * genattrtab.c: Likewise.
600 * gencheck.c: Likewise.
601 * gencodes.c: Likewise.
602 * genconfig.c: Likewise.
603 * genemit.c: Likewise.
604 * genextract.c: Likewise.
605 * genflags.c: Likewise.
606 * gengenrtl.c: Likewise.
607 * genopinit.c: Likewise.
608 * genoutput.c: Likewise.
609 * genpeep.c: Likewise.
610 * genrecog.c: Likewise.
611 * getpwd.c: Likewise.
612 * halfpic.c: Likewise.
614 * mips-tdump.c: Likewise. Wrap malloc/realloc/calloc prototypes
615 in NEED_DECLARATION_* macros.
617 * mips-tfile.c: Remove things made redundant by libiberty.h and/or
618 conform to libiberty standards.
619 (fatal): Fix const-ification of variable `format' in
620 !ANSI_PROTOTYPES case.
622 * prefix.c: Remove things made redundant by libiberty.h and/or
623 conform to libiberty standards.
625 * print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
626 conflicting with function `spaces' from libiberty.
628 * profile.c: Remove things made redundant by libiberty.h and/or
629 conform to libiberty standards.
630 * protoize.c: Likewise.
634 * toplev.c: Likewise.
635 * toplev.h: Likewise.
638 Thu Nov 26 08:38:06 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
640 * cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.
642 Thu Nov 26 23:45:37 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
644 * README.C4X: Updated URLs.
645 * config/c4x/c4x.c (c4x_address_conflict): Fix typo.
646 (valid_parallel_operands_5): Remove unused variable.
648 Thu Nov 26 23:40:03 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
650 * config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.
652 1998-11-26 Manfred Hollstein <manfred@s-direktnet.de>
654 * Makefile.in (CONFIG_LANGUAGES): New macro taking all languages
655 which can be configured.
656 (LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
657 (Makefile): Pass actual LANGUAGES through the environment when
659 (cstamp-h): Likewise.
660 (config.status): Likewise.
662 * configure.in (enable_languages): Add new configuration parameter
663 "--enable-languages=lang1,lang2,...".
664 (${srcdir}/*/config-lang.in): Change handling to configure only
665 those directories, that the user might have enabled; default to
666 "all" existing languages.
667 * configure: Regenerate.
669 Thu Nov 26 00:19:19 1998 Richard Henderson <rth@cygnus.com>
671 * rtlanal.c (regs_set_between_p): New function.
672 * rtl.h (regs_set_between_p): Prototype it.
673 * jump.c (jump_optimize): Use it instead of modified_between_p
676 Wed Nov 25 23:32:02 1998 Ian Dall <Ian.Dall@dsto.defence.gov.au>
677 Matthias Pfaller <leo@dachau.marco.de>
679 * invoke.texi (Option Summary, NS32K Options): add description
680 of NS32K specific options.
682 * ns32k.md (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
683 fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
684 fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
685 negdf2, absdf2): Use l instead of f since the double class and
686 float class are no longer the same.
687 (cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
688 divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
689 ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
690 use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
692 (cmpsi, cmphi, cmpqi): use general_operand instead of
693 non_immediate_operand. Removes erroneous assumption that can't
695 (movsf, movsi, movhi, movqi,...): New register numbering scheme.
696 (movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
698 (movstrsi, movstrsi1, movstrsi2): completely new block move
700 (...): Patterns to exploit multiply-add instructions.
701 (udivmodsi4, udivmodsi_internal4, udivmodhi4,
702 udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): new
703 patterns to exploit extended divide insns.
704 (udivsi3, udivhi3, udivqi3): remove since superceded by udivmodsi
707 * ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
708 float return values as well as simple scalar floats.
709 (TARGET_32381, TARGET_MULT_ADD, TARGET_SWITCHES):
710 support new flag to denote 32381 fpu.
711 (OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
712 (CONDITIONAL_REGISTER_USAGE): disable extra 32381 registers if not
714 (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS, CALL_USED_REGISTERS,
715 REGISTER_NAMES, ADDITIONAL_REGISTER_NAMES, OUTPUT_REGISTER_NAMES,
716 REG_ALLOC_ORDER, DBX_REGISTER_NUMBER, R0_REGNUM, F0_REGNUM,
717 L1_REGNUM, STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM,
718 LONG_FP_REGS_P, ARG_POINTER_REGNUM, reg_class, REG_CLASS_NAMES,
719 REG_CLASS_CONTENTS, SUBSET_P,REGNO_REG_CLASS,
720 REG_CLASS_FROM_LETTER, FUNCTION_PROLOGUE, FUNCTION_EPILOGUE,
721 REGNO_OK_FOR_INDEX_P, FP_REG_P, REG_OK_FOR_INDEX_P,
722 REG_OK_FOR_BASE_P, MEM_REG): new register scheme to include 32381
723 fpu registers and special register classes for new 32381
724 instructions dotf and polyf.
725 (MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
727 (INCOMING_RETURN_ADDR_RTX, RETURN_ADDR_RTX,
728 INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
730 (SMALL_REGISTER_CLASSES): Make dependant on -mmult-add option.
731 (MOVE_RATIO): Set to zero because of smart movstrsi implimentation.
732 (REGISTER_MOVE_COST): move code to register_move_cost function for
733 ease of coding and debugging.
734 (CLASS_LIKELY_SPILLED_P): Under new register scheme class
735 LONG_FLOAT_REGO is likely spilled but not caught by default
737 (CONSTANT_ADDRESS_P, CONSTANT_ADDRESS_NO_LABEL_P): use macro
738 instead of hard coded numbers in range check.
739 (ASM_OUTPUT_LABELREF_AS_INT): delete since unused.
740 (...): Add prototypes for functions in ns32k.c but disable because
741 of problems when ns32k.h is included in machine independant files.
743 * ns32k.c: include "system.h", "tree.h", "expr.h", "flags.h".
744 (ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
745 hard_regno_mode_ok, secondary_reload_class,
746 print_operand, print_operand_address): new register scheme to
747 include 32381 fpu registers and special register classes for new
748 32381 instructions dotf and polyf.
749 (gen_indexed_expr): Make static to keep namespace clean.
750 (check_reg): remove since never called.
751 (move_tail, expand_block_move): helper functions for "movstrsi"
753 (register_move_cost): Helper function for REGISTER_MOVE_COST macro.
754 Increase cost of moves which go via memory.
755 * netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
756 (CPP_PREDEFINES): nolonger predefine "unix".
758 * ns32k.md (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
759 Remove erroneous %$. print_operand() can work out from the rtx is
760 an immediate prefix is required.
762 * ns32k.h (RETURN_POPS_ARGS, VALID_MACHINE_DECL_ATTRIBUTE,
763 VALID_MACHINE_TYPE_ATTRIBUTE, COMP_TYPE_ATTRIBUTES,
764 SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
766 (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST): Correct handling of
769 * ns32k.c (symbolic_reference_mentioned_p, print_operand):
770 Correct handling of pic operands.
771 (ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
772 ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
773 -mrtd calling convention.
775 Wed Nov 25 23:42:20 1998 Tom Tromey <tromey@cygnus.com>
777 * gcc.c (option_map): Recognize --output-class-directory.
779 Thu Nov 26 18:26:21 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
781 * loop.h (precondition_loop_p): Added new mode argument.
782 * unroll.c (precondition_loop_p): Likewise.
783 (approx_final_value): Function deleted and subsumed
784 into loop_iterations.
785 (loop_find_equiv_value): New function.
786 (loop_iterations): Use loop_find_equiv_value to find increments
787 too large to be immediate constants. Also use it to find terms
788 common to initial and final iteration values that can be removed.
790 Thu Nov 26 18:05:04 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
792 * loop.h (struct loop_info): Define new structure.
793 (precondition_loop_p): Added prototype.
794 (unroll_loop): Added new argument loop_info to prototype.
795 (final_biv_value, final_giv_value): Added new argument n_iterations
797 * loop.c (strength_reduce): Declare new structure loop_iteration_info
798 and new pointer loop_info.
799 (loop_n_iterations): Replace global variable by element in
801 (check_final_value): New argument n_iterations.
802 (insert_bct): New argument loop_info.
803 (loop_unroll_factor): Replace global array by element in
805 (loop_optimize): Remove code to allocate and initialise
806 loop_unroll_factor_array.
807 * unroll.c (precondition_loop_p): No longer static since
808 used by branch on count optimization.
809 (precondition_loop_p, unroll_loop): New argument loop_info.
810 (final_biv_value, final_giv_value, find_splittable_regs): New
811 argument n_iterations.
812 (loop_iteration_var, loop_initial_value, loop_increment,
813 loop_final_value, loop_comparison_code, loop_unroll_factor):
814 Replaced global variables by loop_info structure.
815 (loop_unroll_factor): Replace global array by element in
818 Thu Nov 26 17:49:29 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
820 * loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
823 * unroll.c (precondition_loop_p): Return loop_initial_value
824 for initial_value instead of loop_iteration_var.
826 Thu Nov 26 17:15:38 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
828 * config/c4x/c4x.md: Fix minor formatting problems. Update docs.
829 (*b, *b_rev, *b_noov, *b_noov_rev, *db,
830 decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
831 to output the instruction sequences.
833 (rptb_top): Provide alternatives to use any register or memory
835 (rptb_end): Emit use of operands rather than assigning them
836 explicitly to the RS and RE registers.
838 Thu Nov 26 16:37:59 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
840 * config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
841 c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
842 c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
843 c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after,
844 c4x_merge_notes, c4x_parallel_process,
845 c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
846 c4x_combine_parallel): Delete.
848 Thu Nov 26 15:16:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
850 * config/c4x/c4x.c: (c4x_override_options): For compatibility
851 with old target options clear flag_branch_on_count_reg if
852 -mno-rptb specified and set flag_argument_alias is -mno-aliases
854 (c4x_output_cbranch): Handle a sequence of insns rather than a
856 (c4x_rptb_insert): Do not emit a RPTB insn if the RC register
857 has not been allocated as the loop counter.
858 (c4x_address_conflict): Do not allow two volatile memory references.
859 (valid_parallel_operands_4, valid_parallel_operands_5,
860 valid_parallel_operands_6): Reject pattern if the register destination
861 of the first set is used as part of an address in the second set.
863 Thu Nov 26 14:56:32 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
865 * config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
866 (TARGET_SMALL_REG_CLASS): Set to 0 so that SMALL_REGISTER_CLASSES
867 is no longer enabled if PARALLEL_MPY_FLAG set.
868 (HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
869 (REG_CLASS_CONTENTS): Add braces around initializers.
870 (HAVE_MULTIPLE_PACK): Define.
871 (ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with
872 REAL_VALUE_TO_DECIMAL.
873 (ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with
874 REAL_VALUE_TO_DECIMAL.
875 (ar0_reg_operand): Add prototype.
876 (ar0_mem_operand): Likewise.
877 (ar1_reg_operand): Likewise.
878 (ar1_mem_operand): Likewise.
879 (ar2_reg_operand): Likewise.
880 (ar2_mem_operand): Likewise.
881 (ar3_reg_operand): Likewise.
882 (ar3_mem_operand): Likewise.
883 (ar4_reg_operand): Likewise.
884 (ar4_mem_operand): Likewise.
885 (ar5_reg_operand): Likewise.
886 (ar5_mem_operand): Likewise.
887 (ar6_reg_operand): Likewise.
888 (ar6_mem_operand): Likewise.
889 (ar7_reg_operand): Likewise.
890 (ar7_mem_operand): Likewise.
891 (ir0_reg_operand): Likewise.
892 (ir0_mem_operand): Likewise.
893 (ir1_reg_operand): Likewise.
894 (ir1_mem_operand): Likewise.
895 (group1_reg_operand): Likewise.
896 (group1_mem_operand): Likewise.
897 (ir1_reg_operand): Likewise.
898 (arx_reg_operand): Likewise.
899 (not_rc_reg): Likewise.
900 (not_modify_reg): Likewise.
901 (c4x_group1_reg_operand): Remove prototype.
902 (c4x_group1_mem_operand): Likewise.
903 (c4x_arx_reg_operand): Likewise.
905 Wed Nov 25 19:02:55 1998 (Stephen L Moshier) <moshier@world.std.com>
907 * emit-rtl.c (gen_lowpart_common): Remove earlier change.
908 * real.c (make_nan): Make SIGN arg actually specify the sign bit.
910 Thu Nov 26 14:12:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
912 * config/c4x/c4x.md (addqi3): Emit addqi3_noclobber pattern
915 Wed Nov 25 22:05:28 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
917 * config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
918 unless FMOVD_WORKS is defined.
920 Wed Nov 25 20:11:04 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
922 * regclass.c (init_reg_sets): Move code that calculates tables
923 dependent on reg_class_contents from here...
924 (init_reg_sets_1): To here.
926 Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
928 * cpplib.h: Delete struct import_file. Add ihash element to
929 struct cpp_buffer. Delete dont_repeat_files and
930 import_hash_table elements from cpp_reader; change
931 all_include_files to a hash table. Delete all foobar_include
932 / last_foobar_include elements from struct cpp_options; put
933 back four such: quote_include, bracket_include,
934 system_include, after_include. Redo struct file_name_list
935 completely. Add new structure type include_hash. Add
936 prototypes for merge_include_chains and include_hash. Change
937 prototypes for finclude, find_include_file, and
938 append_include_chain to match changes below.
940 * cppfiles.c (simplify_pathname, include_hash,
941 remap_filename, merge_include_chains): New functions.
942 (add_import, lookup_import, open_include_file): Removed.
943 (INO_T_EQ): Define this (copied from cccp.c).
944 (hack_vms_include_specification): Remove all calls and #if 0
945 out the definition. It was being called incorrectly and at
946 the wrong times. Until a VMSie can look at this, it's better
947 to not pretend to support it.
948 (append_include_chain): Change calling convention; now takes
949 only one directory at a time, and sets up the data structure
951 (redundant_include_p): Rewritten - this is now used for all
952 include redundancy, whether by #ifndef, #import, or #pragma
953 once. Looks up things in the include hash table.
954 (file_cleanup): Decrement pfile->system_include_depth here if
956 (find_include_file): Calling convention changed; now passes
957 around a struct include_hash instead of 3 separate parameters.
958 Guts ripped out and replaced with new include_hash mechanism.
959 (finclude): Calling convention changed as for
960 find_include_file. Error exits pulled out-of-line. Reformat.
961 (safe_read): Return a long, not an int.
962 (deps_output): Don't recurse.
964 * cpplib.c (is_system_include): Deleted.
965 (path_include): Fix up call to append_include_chain.
966 (do_include): Fix up calls to find_include_file and finclude.
967 Clean up dependency output a bit. Shorten obnoxiously lengthy
968 #import warning message. Don't decrement
969 pfile->system_include_depth here.
970 (do_pragma): Understand the include_hash structure. Reformat.
971 (do_endif): Correct handling of control macros. Understand
973 (cpp_start_read): Fix up calls to finclude. Call
974 merge_include_chains.
975 (cpp_handle_option): Fix up calls to append_include_chain.
976 Understand the four partial include chains.
977 (cpp_finish): Add debugging code (#if 0-ed out) for the
979 (cpp_cleanup): Free the include_hash, not the import hash and
980 the all_include and dont_repeat lists which no longer exist.
982 Wed Nov 25 11:26:19 1998 Jeffrey A Law (law@cygnus.com)
984 * toplev.c (no_new_pseudos): Define.
985 (rest_of_compilation): Set no_new_pseudos as needed.
986 * emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
987 if no_new_pseudos is set.
988 * rtl.h (no_new_pseudos): Declare it.
989 * reload1.c (reload): Update comments.
990 * md.texi: Corresponding changes.
992 Wed Nov 25 11:26:17 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
994 * reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
995 (choose_reload_regs): Rename it here as well. When computing it,
996 also merge in used hardregs.
998 1998-11-25 07:51 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
1000 * gcc.c: Split out Objective-C specs to...
1001 * objc/lang-specs.h: here. (New file.) Make the specs cpplib
1004 * c-lex.c (init_parse): Always initialize the filename global.
1005 * objc/objc-act.c (lang_init): Always call check_newline at
1008 Wed Nov 25 00:48:29 1998 Graham <grahams@rcp.co.uk>
1010 * reload1.c (reload): Remove unused variable.
1011 (reload_reg_free_for_value_p): Add missing parameter definition.
1013 * jump.c (jump_optimize): Remove unused variable.
1015 Wed Nov 25 00:07:11 1998 Jeffrey A Law (law@cygnus.com)
1017 * Makefile.in (graph.o): Depend on $(RTL_H), not rtl.h.
1019 * cse.c (fold_rtx): Make autoincrement addressing mode tests be
1021 * expr.c (move_by_pieces): Similarly.
1022 (move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
1023 * flow.c (find_auto_inc): Similarly.
1024 (try_pre_increment): Similarly.
1025 * loop.c (strength_reduce): Similarly.
1026 * regclass.c (auto_inc_dec_reg_p): Similarly.
1027 * regmove.c (try_auto_increment): Similarly.
1028 (fixup_match_1): Similarly.
1029 * rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
1030 (HAVE_PRE_DECREMENT): Similarly.
1031 (HAVE_POST_INCREMENT, HAVE_POST_DECREMENT): Similarly.
1032 * Corresponding changes to all target header files.
1033 * tm.texi: Update docs for autoinc addressing modes.
1035 Tue Nov 24 20:24:59 1998 Jim Wilson <wilson@cygnus.com>
1037 * configure.in (m68020-*-elf*, m68k-*-elf*): New targets.
1038 * configure: Rebuild.
1039 * config/elfos.h: New file.
1040 * config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
1041 config/m68k/t-m68kelf: New file.
1043 Tue Nov 24 13:40:06 1998 Jeffrey A Law (law@cygnus.com)
1045 * Makefile.in (HOST_AR): Define.
1046 (HOST_AR_FLAGS, HOST_RANLIB, HOST_RANLIB_TEST): Similarly.
1047 (libcpp.a): Use the host tools explicitly.
1048 (STAGESTUFF): Add libcpp.a.
1050 Tue Nov 24 09:33:49 1998 Nick Clifton <nickc@cygnus.com>
1052 * config/m32r/m32r.md (movstrsi_internal): Describe changes made
1053 to source and destination registers.
1055 Mon Nov 23 20:28:02 1998 Mike Stump <mrs@wrs.com>
1057 * libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
1058 The strategy we now use is to pre allocate the top_elt along
1059 with the EH context so that each thread has its own top_elt.
1060 This is necessary as the dynmanic cleanup chain is used on the
1061 top element of the stack and each thread MUST have its own.
1062 (eh_context_static): Likewise.
1063 (new_eh_context): Likewise.
1064 (__sjthrow): Likewise.
1066 Mon Nov 23 20:25:03 1998 Jason Merrill <jason@yorick.cygnus.com>
1068 * i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
1069 * i386.md (prologue_get_pc): Remove unused variable.
1071 Mon Nov 23 17:05:40 1998 Geoffrey Noer <noer@cygnus.com>
1073 * i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.
1075 Mon Nov 23 16:40:00 1998 Ulrich Drepper <drepper@cygnus.com>
1077 * Makefile.in (OBJS): Add graph.o
1078 (graph.o): New dependency list.
1079 * flags.h: Declare dump_for_graph and define graph_dump_types type.
1080 * print-rtl.c (dump_for_graph): Define new variable.
1081 (print_rtx): Rewrite to allow use in graph dumping functions.
1082 * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
1083 finish_graph_dump_file.
1084 Define graph_dump_format.
1085 (compile_file): If graph dumping is enabled also clear these files.
1086 Finish graph dump files.
1087 (rest_of_compilation): Also dump graph information if enabled.
1088 (main): Recognize -dv to enabled VCG based graph dumping.
1089 * graph.c: New file. Graph dumping functions.
1091 Mon Nov 23 16:39:04 1998 Richard Henderson <rth@cygnus.com>
1093 * configure.in: Look for <sys/stat.h>.
1094 * system.h: Include it before substitute S_ISREG definitions.
1096 Mon Nov 23 17:40:37 1998 Gavin Romig-Koch <gavin@cygnus.com>
1098 * config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
1099 * config/mips/iris6.h: Same.
1100 * config/mips/mips.md: Same.
1101 * config/mips/mips.c: Same; also add "-mabi=o64" option.
1102 * config/mips/mips.h: Same; also define ABI_O64.
1104 Mon Nov 23 17:02:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1106 * configure.in: Use AC_PREREQ(2.12.1).
1108 Mon Nov 23 10:16:38 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
1110 * cccp.c (S_ISREG, S_ISDIR): Delete defines.
1111 * cpplib.c, gcc.c: Likewise.
1112 * system.h (S_ISREG, S_ISDIR): Define if not already defined.
1114 Mon Nov 23 09:53:44 1998 Richard Henderson <rth@cygnus.com>
1116 * local-alloc.c (local_alloc): Use malloc not alloca for
1117 reg_qty, reg_offset, ref_next_in_qty.
1119 Mon Nov 23 16:46:46 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1121 * caller-save.c (insert_one_insn): Initialize the live_before and
1122 live_after register sets.
1126 * config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
1127 (___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
1128 * sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
1129 (fp_reg_names, assembler_dialect): New variables.
1130 (print_operand_address): Handle SUBREGs.
1131 (print_operand): Added 'o' case.
1132 Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
1133 Name of FP registers depends on mode.
1134 (expand_block_move): Emit different code for SH4 hardware.
1135 (prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
1136 (from_compare): Likewise.
1137 (add_constant): New argument last_value. Changed all callers.
1138 (find_barrier): Don't try HImode load for FPUL_REG.
1139 (machine_dependent_reorg): Likewise.
1140 (sfunc_uses_reg): A CLOBBER cannot be the address register use.
1141 (gen_far_branch): Emit a barrier after the new jump.
1142 (barrier_align): Don't trust instruction lengths before
1144 (machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
1145 Use auto-inc addressing for fp registers if doubles need to
1146 be loaded in two steps.
1147 Set sh_flag_remove_dead_before_cse.
1148 (push): Support for TARGET_FMOVD. Use gen_push_fpul for fpul.
1149 (pop): Support for TARGET_FMOVD. Use gen_pop_fpul for fpul.
1150 (calc_live_regs): Support for TARGET_FMOVD. Don't save FPSCR.
1151 Support for FIRST_XD_REG .. LAST_XD_REG.
1152 (sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
1153 (sh_expand_epilogue): Likewise.
1154 (sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
1155 (initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
1156 (arith_reg_operand): FPUL_REG is OK for SH4.
1157 (fp_arith_reg_operand, fp_extended_operand) New functions.
1158 (tertiary_reload_operand, fpscr_operand): Likewise.
1159 (commutative_float_operator, noncommutative_float_operator): Likewise.
1160 (binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
1161 (emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
1162 (expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
1163 (emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
1164 * sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
1165 (CONDITIONAL_REGISTER_USAGE): Likewise.
1166 (HARD_SH4_BIT, FPU_SINGLE_BIT, SH4_BIT, FMOVD_BIT): Define.
1167 (TARGET_CACHE32, TARGET_SUPERSCALAR, TARGET_HARWARD): Define.
1168 (TARGET_HARD_SH4, TARGET_FPU_SINGLE, TARGET_SH4, TARGET_FMOVD): Define.
1169 (target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
1170 (OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
1171 to -1 and sh_flag_remove_dead_before_cse to 1.
1172 (ASSEMBLER_DIALECT): Define to assembler_dialect.
1173 (assembler_dialect, fp_reg_names): Declare.
1174 (OVERRIDE_OPTIONS): Add code for TARGET_SH4.
1175 Hide names of registers that are not accessible.
1176 (CACHE_LOG): Take TARGET_CACHE32 into account.
1177 (LOOP_ALIGN): Take TARGET_HARWARD into account.
1178 (FIRST_XD_REG, LAST_XD_REG, FPSCR_REG): Define.
1179 (FIRST_PSEUDO_REGISTER: Now 49.
1180 (FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
1181 (HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
1182 (HARD_REGNO_MODE_OK): Update.
1183 (enum reg_class): Add DF_REGS and FPSCR_REGS.
1184 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REG_ALLOC_ORDER): Likewise.
1185 (SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Update.
1186 (CLASS_CANNOT_CHANGE_SIZE, DEBUG_REGISTER_NAMES): Define.
1187 (NPARM_REGS): Eight floating point parameter registers on SH4.
1188 (BASE_RETURN_VALUE_REG): SH4 also passes double values
1189 in floating point registers.
1190 (GET_SH_ARG_CLASS) Likewise.
1191 Complex float types are also returned in float registers.
1192 (BASE_ARG_REG): Complex float types are also passes in float registers.
1193 (FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
1194 (LIBCALL_VALUE): Remove trailing semicolon.
1195 (ROUND_REG): Round when double precision value is passed in floating
1197 (FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
1198 passed on the stack.
1199 (FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
1200 (FUNCTION_ARG_PARTIAL_NREGS): Zero for SH4.
1201 (TRAMPOLINE_ALIGNMENT): Take TARGET_HARWARD into account.
1202 (INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
1203 (MODE_DISP_OK_8): Not for SH4 DFmode.
1204 (GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
1205 Allow indexed addressing for PSImode after reload.
1206 (LEGITIMIZE_ADDRESS): Not for SH4 DFmode.
1207 (LEGITIMIZE_RELOAD_ADDRESS): Handle SH3E SFmode.
1208 Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
1209 (DOUBLE_TYPE_SIZE): 64 for SH4.
1210 (RTX_COSTS): Add PLUS case.
1211 Increae cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
1212 (REGISTER_MOVE_COST): Add handling of R0_REGS, FPUL_REGS, T_REGS,
1213 MAC_REGS, PR_REGS, DF_REGS.
1214 (REGISTER_NAMES): Use fp_reg_names.
1215 (enum processor_type): Add PROCESSOR_SH4.
1216 (sh_flag_remove_dead_before_cse): Declare.
1217 (rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
1218 (PREDICATE_CODES): Add binary_float_operator,
1219 commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
1220 fpscr_operand, noncommutative_float_operator.
1221 (ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
1222 (SH_DYNAMIC_SHIFT_COST): Cheaper for SH4.
1223 * sh.md (attribute cpu): Add value sh4.
1224 (attrbutes fmovd, issues): Define.
1225 (attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
1226 (function units memory, int, mpy, fp): Make dependent on issue rate.
1227 (function units issue, single_issue, load_si, load): Define.
1228 (function units load_store, fdiv, gp_fpul): Define.
1229 (attribute hit_stack): Provide proper default.
1230 (use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
1231 (udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
1232 (udivsi3, divsi3): Emit special patterns for SH4 hardware,
1233 (mulsi3_call): Now uses match_operand for function address.
1234 (mulsi3): Also emit code for SH1 case. Wrap result in REG_LIBCALL /
1236 (push, pop, push_e, pop_e): Now define_expands.
1237 (push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
1238 (movsi_ie): Added y/i alternative.
1239 (ic_invalidate_line_i, movdf_i4): New insns.
1240 (movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
1241 (reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
1242 (movdf): Add special code for SH4.
1243 (movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
1244 (call_valuei, calli, call_value): Likewise.
1245 (movsf): Emit no-op move.
1246 (mov_nop, movsi_y): New insns.
1247 (blt, sge): generalize to handle DFmode.
1248 (return predicate): Call emit_fpscr_use and remove_dead_before_cse.
1249 (block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
1250 (block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
1251 (fpu_switch0, fpu_switch1, movpsi): New expanders.
1252 (fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
1253 (toggle_sz): New insn.
1254 (addsf3, subsf3, mulsf3, divsf3): Now define_expands.
1255 (addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
1256 (macsf3): Make use of fpscr visible. Disable for SH4.
1257 (floatsisf2): Make use of fpscr visible.
1258 (floatsisf2_i4): New insn.
1259 (floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
1260 (ieee_ccmpeqsf_t): Likewise.
1261 (fix_truncsfsi2): Emit different code for SH4.
1262 (fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
1263 (cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
1264 (negsf2, sqrtsf2, abssf2): Now expanders.
1265 (adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
1266 (negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
1267 (muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
1268 (fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
1269 (fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
1270 (fix_truncdfsi2_i4_2+1): New splitters.
1271 (negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
1272 (extendsfdf2, truncdfsf2): New expanders.
1273 (truncdfsf2_i4): New insn.
1274 * t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
1275 (MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
1276 * float-sh.h: When testing for __SH3E__, also test for
1277 __SH4_SINGLE_ONLY__ .
1278 * va-sh.h (__va_freg): Define to float.
1279 (__va_greg, __fa_freg, __gnuc_va_list, va_start):
1280 Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
1281 (__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
1282 (__PASS_AS_FLOAT): Use different definition for __SH4__ and
1284 (TARGET_SH4_P): Define.
1287 * sh.md (movdf_k, movsf_i): Tweak the condition so that
1288 init_expr_once is satisfied about the existence of load / store insns.
1290 * sh.md (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
1291 change m constraint in source operand to mr / mf .
1293 * va-sh.h (__va_arg_sh1): Use __asm instead of asm.
1295 * (__VA_REEF): Define.
1296 (__va_arg_sh1): Use it.
1298 * va-sh.h (va_start, va_arg, va_copy): Add parenteses.
1300 Sun Nov 22 21:34:02 1998 Jeffrey A Law (law@cygnus.com)
1302 * i386/dgux.c (struct option): Add new "description field".
1303 * m88k/m88k.c (struct option): Likewise.
1305 Sun Nov 22 16:07:57 PST 1998 Jeff Law (law@cygnus.com)
1307 * version.c: Bump for snapshot.
1309 Sun Nov 22 13:40:02 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1311 * regmove.c (regmove_profitable_p): Use return value of find_matches
1314 Sun Nov 22 02:47:37 PST 1998 Jeff Law (law@cygnus.com)
1316 * version.c: Bump for snapshot.
1318 Sat Nov 21 22:12:09 1998 Jeffrey A Law (law@cygnus.com)
1320 * reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
1321 without reload having been called earlier.
1323 * v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
1325 (v850_reorg): Similarly.
1327 * loop.c (check_dbra_loop): Avoid using gen_add2_insn.
1329 Sat Nov 21 02:18:38 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1331 * loop.c (move_movables): Start of libcall might be new loop start.
1333 Fri Nov 20 12:14:16 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1335 * hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().
1337 Fri Nov 20 08:34:00 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1339 * function.c (nonlocal_goto_handler_slots): Renamed from
1340 nonlocal_goto_handler_slot; now an EXPR_LIST chain.
1341 (push_function_context_to): Adjust for this change.
1342 (pop_function_context_from): Likewise.
1343 (init_function_start): Likewise.
1344 (expand_function_end): Likewise.
1345 * function.h (struct function): Likewise.
1346 * calls.c (expand_call): Likewise.
1347 * explow.c (allocate_dynamic_stack_space): Likewise.
1348 * expr.h (nonlocal_goto_handler_slots): Rename its declaration.
1349 * stmt.c (declare_nonlocal_label): Make a new handler slot for each
1351 (expand_goto): When doing a nonlocal goto, find corresponding handler
1352 slot for it. Don't put the label address in the static chain register.
1353 (expand_end_bindings): Break out nonlocal goto handling code into
1354 three new functions.
1355 (expand_nl_handler_label, expand_nl_goto_receiver,
1356 expand_nl_goto_receivers): New static functions, broken out of
1357 expand_end_bindings and adapted to create one handler per nonlocal
1359 * function.c (delete_handlers): Delete insn if it references any of
1360 the nonlocal goto handler slots.
1361 * i960.md (nonlocal_goto): Comment out code that modifies
1363 * sparc.md (nonlocal_goto): Likewise.
1364 (goto_handler_and_restore_v9): Comment out.
1365 (goto_handler_and_restore_v9_sp64): Comment out.
1367 Thu Nov 19 23:44:38 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1369 * expr.c (STACK_BYTES): Delete unused macro.
1370 * calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
1371 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1372 (expand_call): Likewise.
1373 (emit_library_call): Likewise.
1374 (emit_library_call_value): Likewise.
1375 * function.c: Provide default for PREFERRED_STACK_BOUNDARY.
1376 (STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1377 * explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
1378 (round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
1379 (allocate_dynamic_stack_space): Likewise.
1380 * tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
1381 (STACK_BOUNDARY): Update description to reflect the new situation.
1383 Thu Nov 19 22:20:51 1998 Jeffrey A Law (law@cygnus.com)
1385 * reorg.c (relax_delay_slots): When optimizing for code size, if a
1386 return with a filled delay slot is followed by a return with an
1387 unfilled delay slot, delete the first return and reemit the insn
1388 that was previously in its delay slot.
1390 * i860.c (single_insn_src_p): Add missing parens.
1391 * ginclude/math-3300.h: Likewise.
1393 Thu Nov 19 20:55:59 1998 H.J. Lu (hjl@gnu.org)
1395 * regclass.c (init_reg_sets_1): Add prototype.
1396 (init_reg_modes): Likewise.
1398 1998-11-19 Zack Weinberg <zack@rabi.phys.columbia.edu>
1400 * c-common.c: Change warning messages to say `comparison is
1401 always true' or `comparison is always false' instead of the
1402 confusing `is always 0', `is always 1'.
1404 Thu Nov 19 19:05:49 1998 Per Bothner <bothner@cygnus.com>
1406 * print-tree.c (print_node): After printing BLOCK or BIND_EXPR,
1407 break instead of return (which loses closing '>').
1409 Thu Nov 19 19:34:13 1998 Jeffrey A Law (law@cygnus.com)
1411 * i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
1412 standard 387 constants.
1414 * i386.md (jump): Explicitly set "memory" attribute.
1415 (indirect_jump, prologue_set_stack_ptr): Likewise.
1416 (prologue_get_pc_and_set_got, pop): Likewise.
1417 (allocate_stack_worder, blockage, return_internal): Likewise.
1418 (return_pop_internal, nop): Likewise.
1419 (epilogue_set_stack_ptr, leave): Likewise.
1421 Thu Nov 19 15:42:54 1998 Nick Clifton <nickc@cygnus.com>
1423 * config/arm/coff.h: Set USER_LABEL_PREFIX to "_".
1425 Thu Nov 19 23:20:59 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1427 * reload1.c (reload_reg_free_for_value_p):
1428 Early auto_inc reloads don't conflict with outputs.
1430 Thu Nov 19 12:58:55 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1432 * configure.in: Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
1433 Instead call AC_HEADER_SYS_WAIT.
1435 * collect2.c: Don't provide defaults for sys/wait.h macros.
1437 * protoize.c: Likewise. Also, don't include sys/wait.h.
1439 * system.h: Include sys/wait.h and provide macro defaults.
1441 1998-11-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1443 * Makefile.in (mandir): Set to @mandir@.
1444 (man1dir): New variable to hold the former value of $(mandir).
1445 Replace all uses of $(mandir) by $(man1dir).
1447 Wed Nov 18 16:31:28 1998 Jim Wilson <wilson@cygnus.com>
1449 * reload.c (find_reloads_address_part): If have a CONST_INT, create
1450 a new one before passing it to force_const_mem.
1452 * reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
1453 find_reloads_address call.
1455 Wed Nov 18 22:13:00 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1457 * expr.c (store_expr): Don't generate load-store pair
1458 if TEMP is identical (according to ==) with TARGET.
1460 Tue Nov 17 22:25:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1462 * reload1.c (reload_reg_free_for_value_p): When considered reload
1463 has an output, matching inputs are not sufficient to avoid conflict.
1465 Tue Nov 17 11:51:16 1998 Mark Mitchell <mark@markmitchell.com>
1467 * hash.h (hash_table_key): New type.
1468 (hash_entry): Change `string' field to generic `key'.
1469 (hash_table): Add `comp' and `hash' functions.
1470 (hash_table_init): Take them as input.
1471 (hash_table_init_n): Likewise.
1472 (hash_lookup): Modify for generic keys.
1473 (hash_newfunc): Likewise.
1474 (hash_traverse): Likewise.
1475 (string_hash): New function.
1476 (string_compare): Likewise.
1477 (string_copy): Likewise.
1478 * hash.c (hash_table_init_n): Modify for generic keys.
1479 (hash_table_init): Likewise.
1480 (hash_lookup): Likewise.
1481 (hash_newfunc): Likewise.
1482 (hash_traverse): Likewise.
1483 (string_hash): Split out from hash_lookup.
1484 (string_compare): New function.
1485 (string_copy): Split out from hash_lookup.
1486 * tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
1488 (symbol_hash_lookup): Likewise.
1489 (file_hash_newfunc): Likewise.
1490 (file_hash_lookup): Likewise.
1491 (demangled_hash_newfunc): Likewise.
1492 (demangled_hash_lookup): Likewise.
1493 (tlink_int): Likewise.
1494 (read_repo_file): Likewise.
1495 (recompile_files): Likewise.
1496 (demangle_new_symbols): Likewise.
1497 (scan_linker_output): Likewise.
1499 Tue Nov 17 17:13:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1501 * flow.c (insn_dead_p): New argument NOTES. Changed all callers.
1503 Mon Nov 16 17:56:07 1998 David Edelsohn <edelsohn@mhpcc.edu>
1505 * rs6000.c (output_mi_thunk): Improve test for local branch.
1507 Mon Nov 16 17:56:07 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
1509 * rs6000.c (output_mi_thunk): Correct test for aggregate values.
1511 Mon Nov 16 21:02:52 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1513 * reload1.c (reload_reg_free_before_p): Delete.
1514 Changed all callers to use reload_reg_free_for_value_p instead.
1515 (reload_reg_free_for_value_p): Handle more reload types.
1516 A RELOAD_FOR_INPUT doesn't conflict with its
1517 RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS.
1518 Add special case for OUT == const0_rtx.
1519 Added ignore_address_reloads argument. Changed all callers.
1521 Mon Nov 16 02:22:29 1998 Jason Merrill <jason@yorick.cygnus.com>
1523 * toplev.c (compile_file): Don't pedwarn about undefined static
1524 functions just because we passed -Wunused.
1526 Mon Nov 16 04:41:41 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1528 * function.c (purge_addressof_1): Unshare rtl created by
1531 Mon Nov 16 04:23:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1533 * regmove.c (regmove_optimize): Don't do anything but
1534 optimize_reg_copy[123] when flag_regmove is not set.
1536 Sat Nov 14 15:05:07 1998 Richard Henderson <rth@cygnus.com>
1538 * alpha.md (addsi3, subsi3): Revise 5 Nov change to store DImode
1539 value in paradoxical SImode result, rather than truncating midpoint.
1541 Fri Nov 13 22:19:23 1998 Richard Henderson <rth@cygnus.com>
1543 * alpha.c (reg_not_elim_operand): New.
1544 * alpha.h (PREDICATE_CODES): Add it.
1545 * alpha.md (s48addq, s48subq patterns): Use it as the predicate
1546 for the multiplicand.
1548 Fri Nov 13 22:50:37 1998 David Edelsohn <edelsohn@mhpcc.edu>
1550 * rs6000.md (movsf): Remove explicit secondary-reload-like
1551 functionality. Only truncate SFmode store if in FPR.
1552 (movsf splitters): Combine const_double splitters.
1553 (movsf_hardfloat): Add GPR support.
1555 Fri Nov 13 11:02:11 1998 Stan Cox <scox@cygnus.com>
1557 * splet.h (SUBTARGET_OVERRIDE_OPTIONS): New to
1558 deprecate -mlive-g0 and -mbroken-saverestore.
1559 * t-splet (MULTILIB_OPTIONS): Likewise.
1561 * sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
1562 in a leaf function. Clarify total_size/extra_size relationship.
1564 Thu Nov 12 19:20:57 1998 Geoffrey Noer <noer@cygnus.com>
1566 * i386/cygwin32.asm: Delete.
1567 * i386/cygwin.asm: New file, renamed from cygwin32.asm.
1568 * i386/cygwin32.h: Delete.
1569 * i386/cygwin.h: New file, renamed from cygwin32.h.
1570 * i386/t-cygwin32: Delete.
1571 * i386/t-cygwin: New file, renamed from t-cygwin32. Include
1572 cygwin.asm instead of cygwin32.asm. Remove "32" from comment.
1573 * i386/x-cygwin32: Delete.
1574 * i386/x-cygwin: New file, renamed from x-cygwin32.
1575 * i386/xm-cygwin32: Delete.
1576 * i386/xm-cygwin: New file, renamed from xm-cygwin32. Use newly
1577 renamed cygwin_ funcs for path translations.
1578 * i386/win32.h: Define __CYGWIN__ when -mcygwin given.
1579 * i386/winnt.c: Remove "32" from comment about cygwin.
1580 * i386/mingw32.h: Fix references to cygwin32.h in light of above.
1581 * rs6000/cygwin32.h: Delete.
1582 * rs6000/cygwin.h: New file, renamed from cygwin32.h. Add
1583 -D__CYGWIN__ to CPP_PREDEFINES.
1584 * rs6000/x-cygwin32: Delete.
1585 * rs6000/x-cygwin: New file, renamed from x-cygwin32.
1586 * rs6000/xm-cygwin32: Delete.
1587 * rs6000/xm-cygwin: New file, renamed from xm-cygwin32.
1589 * configure.in: Check for cygwin* instead of cygwin32. Account
1590 for the rename of cygwin-related config files to lose the "32"s.
1591 * configure: Regenerate.
1593 * cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
1594 toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.
1596 Wed Nov 11 12:25:19 1998 Tom Tromey <tromey@cygnus.com>
1598 * Makefile.in (JAVAGC): New macro.
1599 * configure: Rebuilt.
1600 * configure.in: Recognize --enable-java-gc argument. Subst
1603 Thu Nov 12 03:32:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1605 Handle equivalences that have been obscured by gcse:
1607 * reload1.c (reload): Handle equivalences set up in multiple places.
1608 * local-alloc.c (reg_equiv_init_insns): New variable.
1609 (no_equiv): New function.
1610 (update_equiv_regs): Handle equivalences set up in multiple places.
1611 Don't ignore an insn just because its destination is likely to be
1614 Wed Nov 11 13:46:13 1998 Jim Wilson <wilson@cygnus.com>
1616 * except.c (expand_eh_return): Readd force_operand call lost in
1619 Tue Nov 10 17:04:11 1998 David Edelsohn <edelsohn@mhpcc.edu>
1621 * rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.
1623 1998-11-09 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1625 * dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.
1627 Mon Nov 9 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1629 * regmove.c (regmove_optimize): Fix error in last change.
1631 Mon Nov 9 16:37:52 1998 Andrew Cagney <cagney@b1.cygnus.com>
1633 * mips.c (function_prologue): When TARGET_MIPS16, adjust the register
1634 offset in the .mask pseudo to compensate for frame pointer adjustments.
1635 (mips16_fp_args, build_mips16_call_stub): For little endian, do not
1636 word swap arguments moved to/from FP registers.
1637 * mips16.S (DFREVCMP): Reverse arguments to OPCODE.
1639 Mon Nov 9 09:47:06 PST 1998 Jeff Law (law@cygnus.com)
1641 * version.c: Bump for snapshot.
1643 Mon Nov 9 02:14:14 PST 1998 Jeff Law (law@cygnus.com)
1645 * version.c: Bump for snapshot.
1647 Mon Nov 9 03:06:24 1998 Jeffrey A Law (law@cygnus.com)
1649 * reload1.c (delete_output_reload_insn): If a pseudo is set multiple
1650 times, then it can not be completely replaced.
1652 Mon Nov 9 00:39:02 1998 Richard Henderson <rth@cygnus.com>
1654 * alpha.md (call, call_value) [OSF]: Correct alt 3 insn length.
1656 Sun Nov 8 17:50:30 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1658 * gansidecl.h: Prepend a "G" to the macro wrapping this file
1659 (to distinguish it from the macro wrapping ansidecl.h.)
1660 Include libiberty's ansidecl.h. Remove all redundant definitions.
1661 Define the PROTO() style macros in terms of the PARAMS() ones.
1664 * calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
1665 __STDC__, when deciding whether to use ANSI variable args.
1666 (emit_library_call_value): Likewise.
1668 * cccp.c (error): Likewise.
1669 (warning): Likewise.
1670 (error_with_line): Likewise.
1671 (warning_with_line): Likewise.
1672 (pedwarn): Likewise.
1673 (pedwarn_with_line): Likewise.
1674 (pedwarn_with_file_and_line): Likewise.
1677 * cexp.y (error): Likewise.
1678 (pedwarn): Likewise.
1679 (warning): Likewise.
1681 * collect2.c (fatal_perror): Likewise.
1685 * combine.c (gen_rtx_combine): Likewise.
1687 * cpperror.c (cpp_message): Likewise.
1688 (cpp_fatal): Likewise.
1690 * cpplib.c (cpp_error): Likewise.
1691 (cpp_warning): Likewise.
1692 (cpp_pedwarn): Likewise.
1693 (cpp_error_with_line): Likewise.
1694 (cpp_warning_with_line): Likewise.
1695 (cpp_pedwarn_with_line): Likewise.
1696 (cpp_pedwarn_with_file_and_line): Likewise.
1698 * cpplib.h: Don't define PARAMS() macro.
1700 * demangle.h: Likewise.
1702 * doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
1703 when deciding whether to use ANSI variable args.
1705 * emit-rtl.c (gen_rtx): Likewise.
1706 (gen_rtvec): Likewise.
1708 * final.c (asm_fprintf): Likewise.
1710 * fix-header.c (cpp_message): Likewise.
1712 (cpp_fatal): Likewise.
1714 * gcc.c (concat): Likewise.
1718 * genattr.c (fatal): Likewise.
1720 * genattrtab.c (attr_rtx): Likewise.
1721 (attr_printf): Likewise.
1724 * gencodes.c (fatal): Likewise.
1726 * genconfig.c (fatal): Likewise.
1728 * genemit.c (fatal): Likewise.
1730 * genextract.c (fatal): Likewise.
1732 * genflags.c (fatal): Likewise.
1734 * genopinit.c (fatal): Likewise.
1736 * genoutput.c (fatal): Likewise.
1739 * genpeep.c (fatal): Likewise.
1741 * genrecog.c (fatal): Likewise.
1743 * halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
1744 deciding whether to declare `tree_node' and `rtx_def'.
1746 * hash.h: Don't define stuff we get from gansidecl.h.
1748 * mips-tfile.c: Likewise. Define __proto() in terms of PARAMS().
1749 (fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
1750 whether to use ANSI variable args.
1753 * prefix.c (concat): Likewise.
1757 * system.h: Likewise.
1759 * toplev.c (error_with_file_and_line): Likewise.
1760 (error_with_decl): Likewise.
1761 (error_for_asm): Likewise.
1764 (warning_with_file_and_line): Likewise.
1765 (warning_with_decl): Likewise.
1766 (warning_for_asm): Likewise.
1767 (warning): Likewise.
1768 (pedwarn): Likewise.
1769 (pedwarn_with_decl): Likewise.
1770 (pedwarn_with_file_and_line): Likewise.
1772 (really_sorry): Likewise.
1774 * toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
1775 whether to declare `tree_node' and `rtx_def'.
1777 * tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
1778 deciding whether to use ANSI variable args.
1779 (build_nt): Likewise.
1780 (build_parse_node): Likewise.
1782 Sun Nov 8 13:10:55 PST 1998 Jeff Law (law@cygnus.com)
1784 * version.c: Bump for snapshot.
1786 Sat Nov 7 23:34:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1788 * Makefile.in (libcpp.a): Check RANLIB_TEST before runing RANLIB.
1790 Sat Nov 7 22:26:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
1792 * collect2.c (main, case 'b'): Use else if.
1794 Sat Nov 7 15:35:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1796 * configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
1797 Arrange to include gansidecl.h in {ht}config.h & tm.h just
1798 before the config/ directory headers.
1799 (tm_file_list, host_xm_file_list, build_xm_file_list): Handle
1800 gansidecl.h in the list of dependencies.
1802 * Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
1803 (TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
1804 mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
1805 gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
1806 dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
1807 cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
1810 * cccp.c: Don't include gansidecl.h.
1812 * collect2.c: Likewise.
1813 * config/c4x/c4x.c: Likewise.
1814 * config/v850/v850.h: Likewise.
1815 * cppalloc.c: Likewise.
1816 * cpperror.c: Likewise.
1817 * cppexp.c: Likewise.
1818 * cppfiles.c: Likewise.
1819 * cpphash.c: Likewise.
1820 * cpplib.c: Likewise.
1821 * cppmain.c: Likewise.
1822 * cppulp.c: Likewise.
1823 * demangle.h: Likewise.
1824 * doprint.c: Likewise.
1825 * dyn-string.c: Likewise.
1826 * eh-common.h: Likewise.
1827 * fix-header.c: Likewise.
1828 * frame.c: Likewise.
1831 * gen-protos.c: Likewise.
1832 * gencheck.c: Likewise.
1833 * halfpic.h: Likewise.
1835 * machmode.h: Likewise.
1836 * mbchar.c: Likewise.
1837 * prefix.c: Likewise.
1838 * protoize.c: Likewise.
1839 * recog.h: Likewise.
1841 * scan-decls.c: Likewise.
1843 * varray.h: Likewise.
1845 Sat Nov 7 11:37:53 1998 Richard Henderson <rth@cygnus.com>
1847 * i386.md (call_value_pop): If we're not popping anything,
1848 defer to call_value.
1849 (call_pop): Likewise defer to call.
1851 Sat Nov 7 02:49:56 1998 Richard Henderson <rth@cygnus.com>
1853 * function.c (purge_addressof): Clear purge_addressof_replacements
1854 only after processing the whole function.
1856 Sat Nov 7 00:54:55 1998 Jeffrey A Law (law@cygnus.com)
1858 * reload1.c (reload): If we can not perform a particular elimination
1859 when we thought we could earlier, then we must always iterate through
1860 the loop at least one more time.
1862 Fri Nov 6 19:37:33 1998 Richard Henderson <rth@cygnus.com>
1864 * alpha.c (add_operand): Simplify the CONST_INT match.
1865 (sext_add_operand): Correct typo in comparison by using
1866 CONST_OK_FOR_LETTER_P.
1867 * alpha.md (s?addq): Use sext_add_operand to allow the negative
1868 constant alternatives to be generated.
1869 (mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
1870 small constants, since the hw instructions do.
1872 Fri Nov 6 20:15:19 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1874 * reload1.c (emit_reload_insns): When rewriting the SET_DEST of a
1875 previous insn to store directly into our reload register, make sure
1876 that if the source of the previous insn is a reload register, its
1877 spill_reg_store and spill_reg_stored_to values are cleared.
1879 Fri Nov 6 16:35:10 1998 David Edelsohn <edelsohn@mhpcc.edu>
1881 * rs6000.md (floatunssidf2_internal splitter): Use base register
1882 operand, not hard-coded SP.
1884 Fri Nov 6 04:07:53 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1886 * jump.c (calculate_can_reach_end): Fix thinko.
1888 Fri Nov 6 00:16:04 1998 Jeffrey A Law (law@cygnus.com)
1890 * reorg.c (fill_simple_delay_slots): Fix typo.
1892 * romp.h (LEGITIMIZE_ADDRESS): Fix typo.
1894 Fri Nov 6 00:10:00 1998 Jan Hubicka (hubicka@freesoft.cz)
1896 * i386.md (extendsidi2): Use # in the output template.
1897 (extendsidi splitters): New splitters.
1899 Thu Nov 5 11:13:27 1998 Nick Clifton <nickc@cygnus.com>
1901 * configure.in: Use unknown-elf.h as tm_file for arm-elf
1903 * configure: Regenerate.
1905 Thu Nov 5 07:59:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1907 * jump.c (init_label_info, delete_barrier_successors,
1908 mark_all_labels, delete_unreferenced_labels,
1909 delete_noop_moves, calculate_can_reach_end): New functions broken
1910 out of jump_optimize.
1911 (jump_optimize): Use them.
1913 Thu Nov 5 07:57:45 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
1915 * except.c (expand_fixup_region_end): Make sure outer context labels
1916 are not issued in an inner context during cleanups.
1918 Thu Nov 5 04:03:06 1998 Richard Henderson <rth@cygnus.com>
1920 * alpha.md (addsi3, subsi3): No new temporaries once cse is
1923 Thu Nov 5 03:29:19 1998 Richard Henderson <rth@cygnus.com>
1925 * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
1926 to expose this midpoint to CSE.
1928 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1930 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
1932 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1934 * configure.in: Bring over gcc2 change of Nov 19 1997.
1936 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
1938 * toplev.c (output_lang_identify): Make definition dependent on
1939 ASM_IDENTIFY_LANGUAGE.
1941 * print-rtl.c (spaces): Make static.
1943 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
1945 * extend.texi: Clarify proper uses for register clobbers in asms.
1947 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1949 * recog.h (enum op_type): Define.
1950 (constrain_operands): Adjust prototype.
1951 (recog_op_type): Declare new variable.
1952 * recog.c (recog_op_type): New variable.
1953 (insn_invalid_p): Allow modifying an asm statement after reload.
1954 (extract_insn): Set up recog_op_type.
1955 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
1956 Don't compute operand types, use recog_op_type.
1957 Use the information computed by extract_insn instead of the previous
1958 method of finding it by insn code number.
1959 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
1960 * reorg.c (fill_slots_from_thread): Likewise.
1961 * reload1.c (reload_as_needed): Likewise.
1962 (gen_reload): Likewise.
1963 (inc_for_reload): Likewise.
1964 (reload_cse_simplify_operands): Likewise.
1965 Use the information computed by extract_insn instead of the previous
1966 method of finding it by insn code number.
1967 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
1969 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
1970 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
1971 Use the information computed by extract_insn instead of the previous
1972 method of finding it by insn code number.
1973 * regmove.c (find_matches): Likewise. Change meaning of the return
1974 value to be nonzero if the optimization can be performed, zero if
1975 not. All callers changed.
1976 Shorten some variable names to fix formatting problems.
1977 (regmove_optimize): Shorten some variable names to fix formatting
1979 Use the information computed by extract_insn instead of the previous
1980 method of finding it by insn code number.
1981 * regclass.c (scan_one_insn): Likewise.
1982 (record_reg_classes): Don't compute operand types, use recog_op_type.
1983 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
1984 recog_constraints instead.
1986 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
1988 * rtl.h (flow2_completed): Declare.
1989 * flow.c (flow2_completed): Definition.
1990 * toplev.c (rest_of_compilation): Set and clear flow2_completed
1993 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
1995 * Makefile.in (libcpp.a): Ranlib libcpp.a
1997 * cppulp.c (user_label_prefix): Initialize.
1999 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
2001 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
2002 at a RETURN if current_function_sp_is_unchanging is set.
2004 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2006 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
2008 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
2010 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
2011 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
2012 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
2013 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
2014 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
2015 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
2017 (LIB_SPEC): Handle -mno-cyginw option.
2018 (LINK_SPEC): Handle -mdll.
2020 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2022 * reload.c (find_reloads): Fix test for usage by other reload
2023 to handle secondary reloads properly.
2025 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2027 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
2028 intermediate structure which has exactly the members provided by
2029 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
2030 static intermediate structure.
2032 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
2033 from the intermediate structure. Do the same analogous fix in
2034 the case where ELIMINABLE_REGS is not defined.
2036 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
2038 * pa.h (SELECT_SECTION): Fix thinko.
2040 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
2042 * dwarf2out.c (output_call_frame_info): Comments on last change.
2044 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
2046 * arm.c (add_constant): When taking the address of an item in the
2047 pool, get the mode of the item addressed.
2049 * arm.c (final_prescan_insn case INSN): If an insn doesn't
2050 contain a SET or a PARALLEL, don't consider it for conditional
2053 Restore ABI compatibility for NetBSD.
2054 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
2056 (RETURN_IN_MEMORY): Likewise.
2058 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
2060 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
2061 (m32r_output_block_move): Rewrite bytes < 4 handling.
2063 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2065 * configure.in: Call AC_FUNC_VFORK.
2067 * collect2.c: Define VFORK_STRING as a printable string for
2068 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
2069 defined, include vfork.h. If VMS is defined, define vfork()
2070 appropriately. Remove vfork check on USG, we're using autoconf.
2071 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
2072 checking locally what string to pass.
2073 (scan_prog_file): Likewise.
2074 (scan_libraries): Likewise.
2076 * gcc.c: Remove vfork check on USG, we're using autoconf.
2077 Besides, no calls to vfork/fork occur in this file.
2079 * protoize.c: Likewise.
2081 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2083 * configure.in (DEFAULT_LINKER): renamed from LD
2084 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
2085 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
2086 * configure: rebuilt
2088 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2090 * BUGS: fix the regexp for `more' to find the appropriate node.
2091 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
2093 * BUGS: added link to the WWW FAQ
2095 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
2097 * version.c: Bump for snapshot.
2099 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
2101 * From Christian Gafton:
2102 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
2103 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
2104 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
2106 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
2108 * c-common.c (c_get_alias_set): Allow all type-punning through
2109 unions. Don't get confused about the type of a bit-field, despite
2110 the antics of build_modify_expr.
2112 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
2114 * fixinc.sco: Paramaterize #include_next values.
2115 * fixinc/fixinc.sco: Likewise.
2117 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
2119 * toplev.c (rest_of_compilation): No longer set reload_completed.
2120 * reload1.c (reload): Set it here. Perform instruction splitting
2121 after reload has completed if we will be running the scheduler
2124 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
2126 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
2127 EH region if exceptions are enabled and we're performing cross
2129 (find_cross_jump): Exit loop if the insns are in different EH regions.
2131 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
2133 * dwarf2out.c (output_call_frame_info): Use
2134 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
2136 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2138 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
2139 * c-common.c (check_format_info): Don't check for the 'x'
2140 format character twice, instead check for 'x' and 'X'
2142 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
2144 * configure.in (assembler features): Also make gas is configured if
2145 we find it in the souce tree.
2147 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
2149 * i386.c (i386_comp_type_attributes): Compare whether the
2150 attributes are defined, not their tree nodes.
2152 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2154 * configure.in (gxx_include_dir): bitten by autoconf quoting
2156 * configure: rebuilt
2158 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2160 * configure.in: Ignore non-absolute value in $AS.
2162 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
2164 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
2166 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
2168 * configure.in (msdosdjgpp): Set exeext and target_alias.
2170 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2172 * flow.c (XNMALLOC): New macro.
2173 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
2175 (add_edge, add_edge_to_label): New static functions.
2176 (free_bb_memory): New function.
2177 (flow_delete_insn): Delete function.
2178 (basic_block_drops_in): Delete variable.
2179 (find_basic_blocks): Allocate and initialize basic_block_head,
2180 basic_block_succ. Don't allocate basic_block_drops_in.
2181 Call free_bb_memory at the beginning.
2182 (find_basic_blocks_1): Don't do multiple passes.
2183 Delete code to compute basic_block_drops_in.
2184 After calling make_edges, mark blocks reached by current block live.
2185 Update test for unreachable live blocks.
2186 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
2188 Simplify to call add_edge_to_label when a LABEL_REF is found.
2189 (make_edges): Simplify to call add_edge_to_label instead of
2190 mark_label_ref most of the time.
2191 Compute here whether control drops into the next block.
2192 (delete_unreachable_blocks): Return void. All callers changed.
2193 Delete unreachable blocks in reverse order.
2194 After deleting all unreachable blocks, renumber the remaining ones
2195 and update n_basic_blocks.
2196 (delete_block): Speed up deletion a bit.
2197 Don't set basic_block_drops_in for deleted blocks.
2198 (free_basic_block_vars): Don't free basic_block_drops_in.
2199 (life_analysis_1): Update to use new edge representation.
2200 (dump_flow_info): Delete code to print basic block info; call
2201 dump_bb_data instead.
2202 (compute_preds_succs): Delete code to recompute basic_block_drops_in
2203 and uid_block_number.
2204 Simply copy the previously computed cfg.
2205 (dump_bb_data): New arg LIVE_INFO. All callers changed.
2206 Print register lifetime information if LIVE_INFO is nonzero.
2207 * basic-block.h (dump_bb_data): Adjust prototype.
2208 * gcse.c (gcse_main): Update call to dump_bb_data.
2209 * rtl.h (free_bb_memory): Declare.
2210 * toplev.c (rest_of_compilation): Call free_bb_memory.
2212 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
2213 (update_eliminable_offsets): Don't compute it.
2214 (set_initial_elim_offsets): Don't initialize it.
2215 Break out some code into set_initial_label_offsets so the rest of
2216 this function can be called from reload_as_needed.
2217 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
2218 ELIMINABLE_REGS isn't.
2219 (set_initial_label_offsets): New function, broken out of
2220 set_initial_elim_offsets.
2221 (set_offsets_for_label): New function, broken out of set_label_offsets
2222 and reload_as_needed.
2223 (reload): Call the two new functions.
2224 (reload_as_needed): Call set_initial_elim_offsets instead of
2225 duplicating the code. Likewise for set_offsets_for_label.
2227 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
2228 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
2229 any hard reg, reg_reloaded_dead contains valid data.
2231 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
2233 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
2234 "stdcall" and "cdecl" attributes.
2236 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
2238 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
2239 handle deleted no-op moves of hard registers.
2240 * haifa-sched.c (update_flow_info): Likewise.
2242 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
2244 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
2245 of the sequences to reload the HILO register which do not actually
2248 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
2250 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
2252 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
2254 * except.c (emit_eh_context): Make the EH context register stay alive
2255 at -O0 so stupid.c doesn't get confused.
2257 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2259 * emit-rtl.c (try_split): Do not try to split a BARRIER.
2261 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
2262 Jeffrey A Law (law@cygnus.com)
2264 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
2265 (zero_extendsidi2): Use # in output template and handle completely by
2267 (zero_extend splitters): New define_splits.
2268 (ashiftrt_32): New pattern.
2270 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
2272 * tree.c (append_random_chars): New fn.
2273 (get_file_function_name_long): Use it.
2275 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
2277 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
2278 (LIBCPP_OBJS): New. Add cppulp.o.
2279 (cppmain, fix-header): Depend on and use libcpp.a.
2280 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
2281 of the individual object files.
2282 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
2285 * cccp.c (user_label_prefix): New.
2286 (main): Set it off -f*leading-underscore.
2287 (special_symbol): Use it.
2288 * cpplib.c (special_symbol): Likewise.
2289 (cpp_handle_option): Handle -f*leading-underscore.
2290 * cppulp.c: New file.
2292 * output.h (user_label_prefix): Declare it.
2293 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
2294 * toplev.c (f_options, main): Handle -f*leading-underscore.
2296 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
2297 referencing USER_LABEL_PREFIX directly.
2298 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
2299 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
2300 * final.c (asm_fprintf): Use user_label_prefix instead.
2301 * arm/thumb.c (thumb_print_operand): Likewise.
2303 * gcc.c (default_compilers): Pass -f*leading-underscore on to
2304 cpp wherever appropriate.
2306 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
2308 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
2309 specific compiler switches.
2311 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
2313 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
2316 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2318 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
2319 structure which has exactly the members provided by EXTRA_SPECS.
2320 Xmalloc() the real `extra_specs', and initialize it from this
2321 intermediate structure.
2323 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
2325 * mips.h (EXTRA_SPECS): Likewise.
2327 * sparc.h (EXTRA_SPECS): Likewise.
2329 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2331 * function.c (purge_addressof_1): Instead of aborting when a
2332 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
2333 work just put the ADDRESSOF on stack. Otherwise remember all such
2334 successfull replacements, so that exactly the same replacements
2335 can be made on the REG_NOTEs. Remove the special case for CALL
2337 (purge_addressof_replacements): New variable.
2338 (purge_addressof): Clear it at end.
2340 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2342 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
2343 (lang_init): Call check_newline always.
2344 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
2345 cpp_start_read, set yy_cur and yy_lim to read from
2346 parse_in.token_buffer, so that we'll see the first #line
2348 * cpplib.c (cpp_start_read): finclude the main input file
2349 before processing -include/-imacros. Process -imacros and
2350 -include separately, and handle -include by stacking a
2351 buffer for the file in question as if it'd been #included.
2352 * toplev.c (documented_lang_options) Recognize -H when
2355 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
2357 * cpplib.c: Merge do_once into do_pragma. Break file handling
2358 code out of do_include.
2359 Move append_include_chain, deps_output,
2360 file_cleanup, redundant_include_p, import_hash,
2361 lookup_import, add_import, read_filename_string, read_name_map,
2362 open_include_file, finclude, safe_read to cppfiles.c.
2363 Move prototypes for deps_output, append_include_chain,
2364 finclude to cpplib.h. Move definition of struct
2365 file_name_list there also.
2367 * cppfiles.c: New file. Contains all the above functions
2368 broken out of cpplib.c; also hack_vms_include_specification
2369 from cccp.c and find_include_file, a new function broken out of
2372 * Makefile.in (cppmain): Depend on cppfiles.o.
2373 (fix-header): Likewise.
2374 (cppfiles.o): New target.
2375 * configure.in (--enable-c-cpplib): Add cppfiles.o to
2376 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
2378 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
2380 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
2381 if pending_types is non-zero.
2382 (dwarfout_finish): Verify pending_types is zero before finishing.
2384 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
2386 * expr.c (convert_move): Use shifts to perform the move if a
2387 suitable extend pattern cannot be found. Code written by
2388 Richard Henderson <rth@cygnus.com>.
2390 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2392 * regclass.c (renumber, regno_allocated): New static variables, moved
2393 out of allocate_reg_info.
2394 (allocate_reg_info): Move these two variables outside the function.
2395 Move code to free memory into new function free_reg_info.
2396 (free_reg_info): New function, broken out of allocate_reg_info.
2397 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
2398 * rtl.h (allocate_reg_info): Don't declare.
2399 (free_reg_info): Declare.
2401 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
2403 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
2405 * toplev.c (compile_file): Temporarily revert last change.
2407 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
2409 * c-typeck.c (convert_for_assignment): Parenthesize.
2411 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2413 * reload1.c (delete_output_reload): Avoid ambigous else.
2415 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
2417 * toplev.c (compile_file): Call allocate_reg_info to free register
2419 * rtl.h (allocate_reg_info): Declare.
2421 * PROJECTS: Remove entry for local spilling.
2423 * final.c (cleanup_subreg_operands): New function.
2424 (final_scan_insn): Use it.
2425 (alter_subreg): Clear the "used" field when we turn a SUBREG into
2427 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
2428 operands when reload has finished.
2429 * reload.h (cleanup_subreg_operands): Declare..
2430 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
2431 reload. Handled in reload itself.
2433 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2435 * reload1.c (verify_initial_offsets): New function.
2436 (reload): Call it after reload_as_needed. Also verify that the frame
2437 size stays constant during reload_as_needed.
2438 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
2440 * reload.h (struct insn_chain): Add need_operand_change element.
2441 * reload1.c (new_insn_chain): Clear it.
2442 (calculate_needs_all_insns): Set it; don't overload need_reload.
2443 (reload_as_needed): Use it.
2445 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
2446 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
2447 and reload_address_index_reg_class.
2448 (find_reloads_address_1): Likewise.
2449 * reload.h (reload_address_base_reg_class,
2450 reload_address_index_reg_class): Don't declare.
2451 * reload1.c (reg_old_renumber, pseudo_previous_regs,
2452 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
2453 (used_spill_regs): Now static.
2454 (reload_address_base_reg_class, reload_address_index_reg_class,
2455 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
2456 basic_block_needs, max_needs, group_size, group_mode, max_groups,
2457 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
2460 (init_reload): Delete code to compute base/index reg classes.
2461 (reload): Delete variable J.
2462 Delete code to manage basic_block_needs.
2463 Don't compute regs_explicitly_used.
2464 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
2465 pseudo_previous_regs.
2466 Initialize bad_spill_regs_global.
2467 Don't call order_regs_for_reload here.
2468 Don't initialize spill_reg_order and n_spills.
2469 Don't forbid explicitly used regs to be used for spill regs.
2470 Change main loop to infinite loop, with explicit break statements.
2471 Make SOMETHING_CHANGED variable local to that loop.
2472 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
2473 max_groups_insn, max_nongroups_insn, group_size, group_mode.
2474 Make sure spilled_speudos is cleared before calling spill_hard_reg or
2476 Don't call dump_needs.
2477 Delete code to reset potential_reload_regs.
2478 Delete code to terminate loop conditional on the global needs variables
2479 showing no further needs.
2480 (calculate_needs_all_insns): Return void. All callers changed.
2481 Initialize somehing_needs_elimination here, not in reload.
2482 Delete avoid_return_reg kludge.
2483 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
2484 All callers changed.
2485 Initialize the group_mode and group_size elements of the arg CHAIN.
2486 Delete code to manage basic_block_needs.
2487 Operate on elements of CHAIN instead of global variables.
2488 Delete avoid_return_reg kludge.
2489 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
2490 All callers changed.
2491 Operate on elements of CHAIN instead of global variables.
2492 Delete special SMALL_REGISTER_CLASSES code.
2493 Delete spill_failure code; now in new_spill_reg.
2494 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
2495 All callers changed.
2496 Operate on elements of CHAIN instead of global variables.
2497 (maybe_mark_pseudo_spilled): New static function.
2498 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
2499 All callers changed.
2500 Operate on elements of CHAIN instead of global variables.
2501 Call order_regs_for_reload here, not in reload.
2502 Initialize spill_reg_order and n_spills.
2503 Simplify test whether an asm insn is involved.
2504 Delete spill_failure code; now in new_spill_reg.
2505 Call maybe_mark_pseudo_spilled for everything marked as live in
2506 CHAIN. Merge CHAIN's used_spill_regs into the global variable
2508 (dump_needs): Take CHAIN arg. No longer static, to prevent the
2509 compiler from optimizing this function (now unused) away.
2510 Operate on elements of CHAIN instead of global variables.
2511 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
2513 Operate on elements of CHAIN instead of global variables.
2514 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
2515 take CHAIN arg. All callers changed.
2516 Operate on elements of CHAIN instead of global variables.
2517 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
2518 CHAIN, NONGROUP args. Return void. All callers changed.
2519 Verify caller isn't trying to spill a pseudo.
2520 Simplify test for illegal reg, just use bad_spill_regs.
2521 Generate better error messages.
2522 Operate on elements of CHAIN instead of global variables.
2523 Mark spilled register in CHAIN's used_spill_regs element.
2524 Don't call spill_hard_reg.
2525 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
2526 Mark spilled hard regs in bad_spill_regs_global.
2527 Mark affected pseudos in spilled_pseudos, but don't spill them.
2528 (ior_hard_reg_set): New static function.
2529 (finish_spills): Return int. All callers changed.
2530 Compute spill_reg_order, n_spills and spill_regs here. Also update
2531 regs_ever_live for regs used as spills.
2532 For every pseudo in spilled_pseudos, spill it and mark the previous
2533 hard reg it had in pseudo_previous_regs. Compute which hard regs
2534 arseudo): New static function.
2535 (order_regs_for_reload): Take CHAIN arg. All callers changed.
2536 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
2537 hard registers explicitly used across the current insn into the set.
2538 Compute hard_reg_n_uses taking only pseudos live across this insn
2540 Tweak sorting of potential_reload_regs.
2541 (compare_spill_regs): Delete function.
2542 (reload_as_needed): Don't sort the spill_regs array, it's computed
2543 in proper order in finish_spills.
2544 Delete avoid_return_reg kludge.
2545 Delete code to manage basic_block_needs.
2546 (allocate_reload_reg): Minor speed/readability tweaks.
2547 Operate on elements of CHAIN instead of global variables.
2548 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
2549 Delete avoid_return_reg kludge.
2550 Initialize reload_reg_used from CHAIN's used_spill_regs element.
2551 Delete unused label FAIL.
2552 (reload_combine): Replce reload_address_index_reg_class with
2554 Don't use used_spill_regs to determine information about lifetime of
2557 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
2559 * toplev.c (display_help): Ignore empty target specific
2560 options, and if -W is also specified on the command line then
2561 display undocumented options.
2563 * config/arm/arm.c: Updated with changes in devo sources.
2564 * config/arm/arm.h: Updated with changes in devo sources.
2565 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
2566 * config/arm/lib1thumb.asm: Add ELF support.
2568 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
2570 * collect2.c (aix64_flag): New variable.
2571 (main, case 'b'): Parse it.
2572 (GCC_CHECK_HDR): object magic number must match mode.
2573 (scan_prog_file): Only check for shared object if valid header.
2574 Print debugging if header/mode mismatch.
2576 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
2578 Added support for arm-elf-linux configuration, submitted by Philip
2579 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
2580 code developed by Catherine Moore <clm@cygnus.com>. The following
2583 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
2586 * configure: Regenerated.
2588 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
2589 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
2590 definitions conditional on their not having been already defined.
2592 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
2593 and .type directives, and add "(PLT)" qualification to function
2596 * config/arm/linux.h: Deleted. This file is now superceeded by
2597 either linux-elf.h or linux-aout.h.
2599 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
2600 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
2602 Move definitions from old linux.h file here.
2604 * config/arm/elf.h: New file. Generic ARM/ELF support.
2606 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
2608 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
2610 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
2611 using the 26bit APCS.
2613 * config/arm/unknown-elf.h: New file. Support for OS'es other
2614 than Linux with ELF.
2616 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
2619 * config/arm/coff.h: Include aout.h for basic assembler macros.
2620 Add support for -mstructure_size_boundary=<n> command line option.
2622 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
2623 command line option. Make macro definitions conditional on their
2624 not having been already defined.
2626 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
2627 command line option.
2630 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
2632 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
2633 has been changed to not include a newline. Use this macro instead.
2634 (output_enumeral_list, const_value_attribute, name_attribute,
2635 comp_dir_attribute, prototyped_attribute, producer_attribute,
2636 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
2637 dwarfout_file_scope_decl, generate_new_sfname_entry,
2638 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
2639 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
2641 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
2643 * combine.c (subst): Process the inputs to a parallel asm_operands
2646 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
2648 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
2650 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
2652 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
2654 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
2656 * version.c: Bump for snapshot.
2658 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
2660 * stmt.c (expand_fixup): Set fixup->before_jump to a
2661 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
2663 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2665 * Makefile.in (recog.o): Depend on toplev.h.
2666 (insn-emit.o): Depend on recog.h.
2667 (insn-peep.o): Depend on recog.h and insn-config.h.
2669 * combine.c (simplify_set): Remove unused variable `scratches'.
2671 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
2672 and `idx' in macro conditional controlling their use.
2674 * genemit.c (main): Make the generated output file include
2675 recog.h. Don't have it declare `insn_operand_constraint', since
2676 we get it from recog.h.
2678 * genpeep.c (main): Make the generated output file include
2679 insn-config.h and recog.h.
2681 * recog.c: Include toplev.h.
2682 (extract_insn): Remove unused variable `p'.
2684 * regclass.c (fix_register): Add missing braces around initializer
2686 (allocate_reg_info): Move variable `i' into the scope where it is
2687 used. Change its type to `size_t'.
2689 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2691 * reload.c (push_reload): When merging reloads, make sure
2692 that reload_in_reg and reload_in are from the same reload in
2695 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
2697 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
2698 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
2700 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
2702 * loop.c (loop_has_tablejump): New variable.
2703 (prescan_loop): Scan for it.
2704 (insert_bct): Replace explicit scan with use of it.
2705 * regclass.c (regclass): Restore loop variable j.
2706 (record_reg_classes): Deterine op_types modifiers and initialize
2707 classes[i] before matching constraints. Handle matching
2710 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
2712 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
2715 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2717 * mips.h (EXTRA_SPECS): Add missing initializers.
2719 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2721 * sparc.h (EXTRA_SPECS): Add missing initializers.
2722 (sparc_defer_case_vector): Provide a prototype.
2724 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
2725 comparing it to the result of a pointer subtraction.
2727 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2729 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
2730 the argument to (unsigned char).
2732 * alpha.h (EXTRA_SPECS): Add missing initializers.
2733 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
2736 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
2738 * flow.c (life_analysis_1): Enable "rescan" code after reload.
2739 (propagate_block): Delete dead code after reload.
2741 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
2742 back Oct 15, 1998 change.
2743 * haifa-sched.c (update_flow_info): Likewise.
2744 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
2746 * mn10200.md (truncated shift): Accept constant inputs too.
2748 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
2750 * machmode.h (mode_mask_array): No longer const.
2751 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
2753 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
2755 * frame.c: Somewhat explain `FDE'.
2756 Suggested by Brendan Kehoe
2758 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
2760 * expr.c (pending_chain): Move up.
2761 (save_expr_status): Do save pending_chain.
2762 (restore_expr_status): And restore it.
2763 * function.h (struct function): Add pending_chain.
2765 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2767 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
2768 did not match the code.
2770 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2772 * regclass.c (regclass): Break out some code into new function
2773 scan_one_insn, and into regclass_init.
2774 (init_cost): New static variable, moved out of regclass.
2775 (regclass_init): Initialize it here, not in .
2776 (scan_one_insn): New static function, broken out of regclass.
2777 * recog.c (apply_change_group): Break out some code into new
2778 function insn_invalid_p.
2779 (insn_invalid_p): New static fn, broken out of apply_change_group.
2781 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
2783 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
2784 reg_reloaded_contents matches incremented pseudo.
2786 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
2788 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2790 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
2791 addressing modes with side effects. These are currently
2792 placeholders for the C4x target.
2794 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2796 * loop.c (express_from): Make sure that when generating a PLUS of
2797 a PLUS, any constant expression appears on the outermost PLUS.
2799 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
2801 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
2802 works if "$(srcdir)" != ".".
2804 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
2806 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
2807 existing SUBREG if we can, otherwise abort.
2809 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
2811 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
2812 `restrict' is applied to a non-pointer variable.
2814 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
2816 * invoke.texi: Document -flang-isoc9x.
2818 * Makefile.in (OBJS): Add splay-tree.o.
2819 (c-common.o): Depend on rtl.h.
2820 (splay-tree.o): List dependencies and provide build rule.
2822 * rtl.h (record_alias_subset): New function.
2823 * alias.c: Include splay-tree.h.
2824 (alias_set_entry): New type.
2825 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
2826 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
2827 (mems_in_disjoin_alias_sets_p): New function.
2828 (alias_set_compare): Likewise.
2829 (insert_subset_children): Likewise.
2830 (get_alias_set_entry): Likewise.
2832 * tree.h (TYPE_RESTRICT): New macro.
2833 (TYPE_UNQUALIFIED): New manifest constant.
2834 (TYPE_QUAL_CONST): Likewise
2835 (TYPE_QUAL_VOLATILE): Likewise.
2836 (TYPE_QUAL_RESTRICT): Likewise.
2837 (tree_type): Add restrict_flag. Reduce count of free bits.
2838 (DECL_POINTER_ALIAS_SET): New macro.
2839 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
2840 (tree_decl): Add pointer_alias_set.
2841 (build_qualified_type): New function.
2842 (build_type_variant): Define in terms of build_qualified_type.
2843 * tree.c (set_type_quals): New function.
2844 (make_node): Initializae DECL_POINTER_ALIAS_SET.
2845 (build_type_attribute_variant): Use build_qualified_type and
2847 (build_type_variant): Rename, and modify, to become...
2848 (build_qualified_type): New function.
2849 (build_complex_type): Use set_type_quals.
2851 * c-tree.h (C_TYPE_OBJECT_P): New macro.
2852 (C_TYPE_FUNCTION_P): Likewise.
2853 (C_TYPE_INCOMPLETE_P): Likewise.
2854 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
2855 (c_apply_type_quals_to_decl): New function.
2856 (c_build_qualified_type): New function.
2857 (c_build_type_variant): Define in terms of c_build_qualified_type.
2858 (flag_isoc9x): Declare.
2859 * c-typeck.c (qualify_type): Use c_build_qualified_type.
2860 (common_type): Change to use TYPE_QUALS.
2861 (comptypes): Likewise.
2862 (convert_for_assignment): Likewise.
2863 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
2864 * c-decl.c (flag_isoc9x): Define.
2865 (c_decode_option): Handle -flang-isoc9x.
2866 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
2867 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
2868 * c-lex.c (init_lex): Deal with restrict.
2869 (init_lex): Don't treat restrict as a reserved word in
2870 -traditional mode, or without -flang-isoc9x.
2871 * c-lex.h (rid): Add RID_RESTRICT.
2872 * c-parse.gperf (restrict, __restrict, __restrict__): Make
2873 equivalent to RID_RESTRICT.
2874 * c-parse.in (TYPE_QUAL): Update comment.
2875 * c-common.c: Include rtl.h.
2876 (c_find_base_decl): New function.
2877 (c_build_type_variant): Rename, and modify, to become ...
2878 (c_build_qualified_type): New function.
2879 (c_apply_type_quals_to_decl): Likewise.
2880 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
2881 a particular alias set for the reference.
2882 * toplev.c (documented_lang_options): Add -flang-isoc9x.
2884 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
2886 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
2887 command line switches.
2889 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
2891 * reload.c (loc_mentioned_in_p): Add missing braces to bind
2894 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
2896 * gcc.c (option_map): Added --classpath and --CLASSPATH.
2898 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
2900 * regclass.c (fix_register): Add error message.
2901 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
2904 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2906 * c-decl.c (warn_missing_noreturn): New global variable.
2907 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
2908 (finish_function): Implement missing noreturn warning.
2910 * c-tree.h (warn_missing_noreturn): Declare extern.
2912 * invoke.texi: Document new flags.
2914 * toplev.c (documented_lang_options): Add description.
2916 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2918 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
2919 loop optimization stable for the C4x.
2920 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
2921 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
2922 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
2924 (c4x_address_conflict): Be more paranoid when packing a volatile
2925 memref in a parallel load/store.
2927 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2929 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
2930 repeat_block_filler): Deleted.
2931 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
2932 Condition code not set if destination register from 'c' class.
2933 (*subbqi3_carry_clobber): Fix typo.
2935 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2937 * reorg.c (steal_delay_list_from_target) Check for insns that
2938 modify the condition codes and effect the direction of the jump
2941 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
2943 * function.c (purge_addressof_1): Replace call to
2944 emit_insns_before() with emit_insn_before().
2946 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
2948 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
2950 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2952 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
2954 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
2956 * gcse.c (compute_hash_table): Correctly identify hard regs which are
2957 clobbered across calls.
2959 * loop.c (scan_loop): Be more selective about what invariants are
2960 moved out of a loop.
2962 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
2964 * version.c: Bump for snapshot.
2966 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
2968 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
2969 static eh_context structure.
2971 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2973 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
2975 (try_combine): Don't update max_scratch.
2976 * flow.c (max_scratch, num_scratch): Delete variables.
2977 (life_analysis_1): Don't initialize max_scratch.
2978 (propagate_block): Don't update max_scratch.
2979 (mark_set_1): Don't increment num_scratch.
2980 * regs.h (max_scratch): Delete declaration.
2982 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
2984 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
2985 is nonzero. This is temporary!
2987 * sched.c (update_flow_info): Handle death notes made invalid by
2988 instruction splitting. Partially reverts Oct 15, 1998 patch.
2989 * haifa-sched.c (update_flow_info): Likewise.
2991 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
2993 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
2994 if it has a nonzero DECL_INITIAL.
2996 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2998 * Makefile.in (flow.o): Depend on recog.h.
3000 * cpplib.h (directive_table): Add missing initializiers.
3001 (finclude): Change type of variable `bsize' to size_t.
3003 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
3005 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
3007 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
3008 `int' when comparing against one.
3009 (cpp_file_line_for_message): Mark parameter `pfile' with
3011 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
3013 * flow.c: Include recog.h.
3014 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
3016 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
3017 `f' with ATTRIBUTE_UNUSED.
3018 (reposition_prologue_and_epilogue_notes): Likewise.
3020 * genopinit.c (gen_insn): Cast argument of ctype functions to
3023 * haifa-sched.c: Include recog.h.
3024 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
3025 comparing against one.
3027 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
3029 * mips-tfile.c (parse_end): Cast the argument of ctype function to
3031 (parse_ent): Likewise.
3032 (parse_input): Likewise.
3034 * optabs.c (init_libfuncs): Likewise.
3036 * protoize.c (find_rightmost_formals_list): Likewise.
3038 * recog.h (const_double_operand): Fix typo in prototype.
3040 * tlink.c (scan_linker_output): Cast the argument of ctype
3041 function to `unsigned char'.
3043 * toplev.c (check_lang_option): Cast the result of `strlen' to
3044 `int' when comparing against one.
3046 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
3048 * gcse.c (dump_cuid_table): Correct typo.
3050 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
3052 * toplev.c (display_help): Prepend '-m' to target specific
3054 (check_lang_option): Ignore text after end of first word of a
3055 language specific option.
3057 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3059 * reload1.c (reg_used_by_pseudo): New static variable.
3060 (choose_reload_regs): Initialize it.
3061 Use it instead of testing spill_reg_order to determine whether a
3062 pseudo is live in a hard register across the current insn.
3063 Fix a typo in a reference to reload_reg_rtx.
3065 * flow.c (propagate_block): Replace code that computes and uses
3066 regs_sometimes_live with simpler code that just walks the set of
3067 currently live registers.
3069 * Makefile.in (insn-extract.o): Fix dependencies.
3070 * genextract.c (main): Generate includes for insn-config.h and
3072 Delete generation of declarations which are now in recog.h.
3073 * genrecog.c (main): Delete generation of definitions which are
3075 * local-alloc.c (block_alloc): Use extract_insn and the variables
3076 it sets up instead of looking up values by insn_code.
3077 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
3078 recog_dup_num): Define here instead of generating the definition in
3080 (recog_n_operands, recog_n_dups, recog_n_alternatives,
3081 recog_operand_mode, recog_constraints, recog_operand_address_p):
3083 (extract_insn): New function.
3084 * recog.h (extract_insn): Declare function.
3085 (which_alternative, recog_n_operands, recog_n_dups,
3086 recog_n_alternatives, recog_operand_mode, recog_constraints,
3087 recog_operand_address_p): Declare variables.
3088 * regclass.c (n_occurrences): New static function.
3089 * reload.c (n_occurrences): Delete function.
3090 (find_reloads): Use extract_insn.
3091 * reload.h (n_occurrences): Delete declaration.
3093 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
3095 * reload1.c (reload_as_needed): Fix test for when to call
3096 update_eliminable_offsets.
3098 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3100 Fix consistency problems with reg_equiv_{mem,address};
3101 Improve reload inheritance;
3103 * reload.c (reload_out_reg): New variable.
3104 (loc_mentioned_in_p, remove_address_replacements): New functions.
3105 (remove_replacements): Deleted.
3106 (push_reload): Set reload_out_reg[i].
3107 When merging, also set reload_{in,out}_reg[i], and remove
3108 duplicate address reloads.
3109 (combine_reloads): Copy reload_out_reg[i].
3110 (find_reloads): Do make_memloc substitution also when
3111 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
3113 Include *recog_operand_loc in commutativity operand changes.
3114 Generate optional output reloads.
3115 Delete reference to n_memlocs. Don't set *recog_operand_loc before
3116 processing operands. Call make_memloc in reg_equiv_address code.
3117 Set *recog_operand_loc only after processing operands, and only
3118 if replace is true. Return a value.
3119 When changing address reload types for operands that didn't get
3120 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
3121 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
3122 Don't emit USEs for pseudo SUBREGs when not replacing.
3123 (find_reloads_address): Do make_memloc substitution also when
3124 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
3126 (find_reloads_toplev): Likewise.
3127 Call make_memloc in reg_equiv_address code.
3128 (debug_reload_to_stream): Add code to output reload_out_reg.
3129 (make_memloc): Delete local variable i, ifdefed out code, and
3130 references to memlocs and n_memlocs.
3131 (memlocs, n_memlocs): Delete.
3132 (push_secondary_reload): Clear reload_out_reg.
3133 (find_reloads_address_1): Provide memrefloc argument to all calls
3134 to find_reloads_address.
3135 In AUTO_INC code, handle non-directly addressable equivalences properly.
3136 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
3137 (find_reloads): Add return type.
3138 (remove_address_replacements, deallocate_reload_reg): Declare.
3139 * reload1.c (num_not_at_initial_offset): No longer static.
3140 (delete_address_reloads, delete_address_reloads_1): Likewise.
3141 (deallocate_reload_reg): New function.
3142 (spill_reg_stored_to): New array.
3143 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
3144 (eliminate_regs_in_insn): Move assignments of previous_offset and
3145 max_offset fields, and recalculation of num_not_at_initial_offset
3146 into new static function:
3147 (update_eliminable_offsets) .
3148 (reload_as_needed): Call update_eliminable_offsetss after calling
3150 Call forget_old_reloads_1 with contents of reloaded auto_inc
3151 expressions if the actual addressing can't be changed to match the
3153 (choose_reload_regs): For inheritance, replace
3154 reload_reg_free_before_p test with reload_reg_used_at_all test, and
3155 remove stand-alone reload_reg_used_at_all test.
3156 Use reload_out_reg to determine which reload regs have output reloads.
3157 Treat reload_override_in more similar to inherited reloads.
3158 Handle (subreg (reg... for inheritance.
3159 For flag_expensive_optimizations, add an extra pass to remove
3160 unnecessary reloads from known working inheritance.
3161 Delete obsolete code for pseudos replaced with MEMs.
3162 Handle inheritance from auto_inc expressions.
3163 (emit_reload_insns): If reload_in is a MEM, set OLD to
3165 Don't reload directly from oldequiv; if it's a pseudo with a
3166 stack slot, use reload_in[j].
3167 Check that reload_in_reg[j] is a MEM before replacing reload_in
3168 from reg_reloaded_contents.
3169 Include non-spill registers in reload inheritance processing.
3170 Also try to use reload_out_reg to set spill_reg_store /
3171 reg_last_reload_reg.
3172 In code to set new_spill_reg_store, use single_set to find out if
3173 there is a single set.
3174 Add code that allows to delete optional output reloads.
3175 Add code to allow deletion of output reloads that use no spill reg.
3176 At the end, set reload_override_in to oldequiv.
3177 Also call delete_output_reload if reload_out_reg is equal to old
3179 Add code to call delete_output_reload for stores with no matching load.
3180 Set / use spill_reg_stored_to.
3181 Handle case where secondary output reload uses a temporary, but
3182 actual store isn't found.
3183 When looking for a store of a value not loaded in order to call
3184 delete_output_reload, count_occurences should return 0 for no
3185 loads; but discount inherited input reloadill_reg_stored_to.
3186 Do checks for extra uses of REG. Changed all
3188 Use delete_address_reloads.
3189 (reload): Take return value of find_reloads into account.
3190 If a no-op set needs more than one reload, delete it.
3191 (reload_reg_free_before_p): RELOAD_FOR_INPUT
3192 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
3193 for the same operand.
3194 (clear_reload_reg_in_use): Check for other reloads that keep a
3196 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
3197 RELOAD_FOR_OPADDR_ADDR.
3198 Take into account when an address address reload is only needed
3199 for the address reload we are considering.
3200 (count_occurrences): Use rtx_equal_p for MEMs.
3201 (inc_for_reload): Return instruction that stores into RELOADREG.
3202 New argument two, IN, and rtx. Changed all callers.
3203 (calculate_needs_all_insns, reload_as_needed):
3204 Don't clear after_call for a CLOBBER.
3205 Keep track of how many hard registers need to be copied from
3206 after_call, and don't clear after_call before we have seen
3207 that much copies, or we see a different instruction.
3209 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
3211 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
3212 after reload has completed.
3214 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
3216 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
3217 a macro name and the next token with a single blank if that whitespace
3218 is in a macro buffer and the next token is not '('.
3220 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
3222 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
3224 (skip_if_group): Ditto.
3225 (skip_to_end_of_comment): Ditto.
3227 (discard_comments): Ditto.
3228 (change_newlines): Ditto.
3230 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
3232 * c-lex.c (yylex): Fix unaligned access of wchar_t.
3234 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
3236 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
3237 (TARGET_OPTIONS): Add --help documentation.
3239 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3241 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
3243 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
3245 * fixinc/* Moved in from ../contrib directory in preparation
3246 for integrating it into the normal build process. In particular,
3247 fixinc/Makefile.in must be config-ed into the build directory
3248 as fixinc/Makefile. Proposed patches to ./Makefile.in and
3249 ./configure.in will be "in the mail" momentarily.
3251 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
3253 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
3254 accidently walk into the free list. Comment how that can happen.
3255 (invalidate): Fix indentation.
3257 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3258 Jeffrey A Law (law@cygnus.com)
3260 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
3261 reload. Never perform rescans of the insn chain after reload.
3262 (propagate_block): Do not delete insn or create new autoinc addressing
3265 * jump.c (jump_optimize): Unconditionally use the code that was
3266 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
3267 * reload1.c (reload): When reloading is finished, delete all
3268 REG_DEAD and REG_UNUSED notes.
3269 (emit_reload_insns): Delete all code that was conditional on
3270 PRESERVE_DEATH_INFO_REGNO_P.
3271 (no_longer_dead_regs): Delete variable.
3272 (reload_cse_delete_death_notes): Delete function.
3273 (reload_cse_no_longer_dead): Delete function.
3274 (reload_cse_regs_1): Delete all code to handle deletion of death
3276 (reload_cse_noop_set_p): Likewise.
3277 (reload_cse_simplify_set): Likewise.
3278 (reload_cse_simplify_operands): Likewise.
3279 (reload_cse_move2add): Likewise.
3280 * reorg.c (used_spill_regs): Delete declaration.
3281 (max_label_num_after_reload): Delete declaration.
3282 (find_dead_or_set_registers): Don't assume that spill regs are
3283 dead at a CODE_LABEL.
3284 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
3286 * sched.c (sched_analyze_insn): Likewise.
3287 (update_flow_info): Likewise.
3288 * haifa-sched.c (sched_analyze_insn): Likewise.
3289 (update_flow_info): Likewise.
3290 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
3291 * toplev.c (max_label_num_after_reload): Delete variable.
3292 (rest_of_compilation): Don't set max_label_num_after_reload.
3293 Call life_analysis after reload_cse_regs if optimizing.
3294 * config/gmicro/gmicro.h: Delete comment referring to
3295 PRESERVE_DEATH_INFO_REGNO_P.
3296 * config/i386/i386.h: Likewise.
3297 * config/m88k/m88k.h: Likewise.
3298 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
3299 * config/sh/sh.h: Likewise.
3301 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
3303 * loop.c (strength_reduce): Restore marking bct_p as
3305 * rs6000.c (optimization_options): Change #ifdef HAIFA to
3306 HAVE_decrement_and_branch_on_count.
3307 (small_data_operand): Remove TARGET_ELF condition for marking
3308 parameters ATTRIBUTE_UNUSED.
3310 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
3312 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
3313 (SELECT_SECTION): Resync with svr4.h.
3315 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
3317 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
3320 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
3322 * c-pragma.c (handle_pragma_token): Test for null tree before
3323 dereferencing TREE_CODE.
3325 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3327 * config/c4x/c4x.c: Convert to use GEN_INT.
3328 (c4x_parallel_process): Rework to handle new repeat loop structure.
3330 * config/c4x/c4x.md: Convert to use GEN_INT.
3331 (rptb_end): Convert to use GE test. Replace uses with clobbers.
3332 (decrement_and_branch_on_count): Likewise.
3334 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
3335 loop.c has the desired functionality.
3336 (rc_reg_operand): New prototype.
3338 * config/c4x/t-c4x: Can now build all front ends.
3340 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
3342 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
3344 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
3346 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
3347 * config/t-rtems: Do not install assert.h -- use newlib's.
3349 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3351 * combine.c (combine_instructions): When finished, call init_recog.
3352 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
3354 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
3356 * toplev.c: If flag_syntax_only, don't open or write assembler file.
3358 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3360 * cppalloc.c (memory_full): Mark function prototype with
3363 * demangle.h (collect_exit): Likewise.
3365 * fix-header.c (v_fatal, fatal): Likewise.
3367 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
3370 * gcov.c (print_usage): Likewise.
3372 * genattr.c (fatal, fancy_abort): Likewise.
3374 * genattrtab.c (fatal, fancy_abort): Likewise.
3376 * gencodes.c (fatal, fancy_abort): Likewise.
3378 * genconfig.c (fatal, fancy_abort): Likewise.
3380 * genemit.c (fatal, fancy_abort): Likewise.
3382 * genextract.c (fatal, fancy_abort): Likewise.
3384 * genflags.c (fatal, fancy_abort): Likewise.
3386 * genopinit.c (fatal, fancy_abort): Likewise.
3388 * genoutput.c (fatal, fancy_abort): Likewise.
3390 * genpeep.c (fatal, fancy_abort): Likewise.
3392 * genrecog.c (fatal, fancy_abort): Likewise.
3394 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
3395 __sjpopnthrow, __throw): Likewise.
3397 * objc/objc-act.c (objc_fatal): Likewise.
3399 * protoize.c (usage, aux_info_corrupted,
3400 declare_source_confusing): Likewise.
3402 * rtl.c (dump_and_abort): Likewise.
3404 * rtl.h (sets_cc0_p): Likewise.
3406 * toplev.c (float_signal, pipe_closed): Likewise.
3408 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3410 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
3411 when generating the decision tree for the general case.
3413 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
3414 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
3416 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3418 * Makefile.in (sched.o): Depend on recog.h.
3420 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
3421 (unsigned) when comparing against one.
3422 (find_base_value): Likewise.
3423 (record_base_value): Cast variable `regno' to (unsigned) when
3424 comparing against one. Cast the result of REGNO() macro to
3425 (unsigned) when comparing against one.
3426 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
3428 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
3429 variable where an unsigned index is needed.
3431 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
3432 before comparing against one.
3434 * collect2.c: Add prototypes for functions `error', `fatal' and
3435 `fatal_perror'. Make these functions take variable arguments
3436 instead of faking it with a fixed number of args.
3437 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
3440 * combine.c (can_combine_p): Mark parameter `pred' with
3442 (find_split_point): Cast variable `src' to (unsigned
3443 HOST_WIDE_INT) when comparing against one.
3444 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
3445 (simplify_logical): Likewise.
3446 (force_to_mode): Cast result of INTVAL() macro to (unsigned
3447 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
3448 HOST_WIDE_INT) in shift.
3449 (simplify_and_const_int): Cast result of INTVAL() macro to
3450 `unsigned HOST_WIDE_INT' when comparing against one.
3451 (merge_outer_ops): Cast variable const0 to `unsigned
3452 HOST_WIDE_INT' when comparing against the result of
3453 GET_MODE_MASK() macro.
3454 (simplify_comparison): Likewise for variable `c0'. Cast variable
3455 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
3456 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
3457 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
3458 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
3459 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
3460 comparing against one.
3461 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
3463 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
3464 macro to `unsigned HOST_WIDE_INT' when comparing against one.
3465 (output_block_move): Cast `sizeof' expression to (int) when
3466 comparing against one.
3467 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
3469 (save_restore_insns): Cast `base_offset' to `long' to match format
3470 specifier in fprintf.
3472 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
3473 to `enum machine_mode'.
3475 * flow.c (life_analysis_1): Remove unused variable `insn'.
3477 * gcc.c (translate_options): Move variables `j' and `k' into the
3478 scope in which they are used. Change their types to `size_t'.
3479 (set_spec): Cast the argument of ctype macro to `unsigned char'.
3480 (read_specs): Likewise.
3481 (process_command): Cast `sizeof' to (int) when comparing against one.
3482 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
3483 (handle_braces): Cast both sides of `==' expression to `long' to
3484 ensure sign matching.
3485 (main): Cast variable `i' to `int' when comparing against one.
3487 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
3488 int to size_t. Cast variable `i' to size_t when comparing against
3491 * genattrtab.c (convert_set_attr_alternative): Remove unused
3492 parameter `insn_code'. All callers changed.
3493 (convert_set_attr): Likewise.
3495 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
3496 size_t when comparing against one. Likewise for variable `len'.
3498 * global.c (global_alloc): Cast variable `max_regno' to size_t
3499 when comparing against one. Likewise for variable `max_allocno'.
3501 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
3503 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
3504 `set' with ATTRIBUTE_UNUSED.
3505 (find_free_reg): Cast `sizeof' expression to (int) when comparing
3508 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
3509 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
3510 (get_condition): Cast variable `const_val' to `unsigned
3511 HOST_WIDE_INT' when comparing against one. Cast unsigned
3512 expression to HOST_WIDE_INT when comparing against one.
3513 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
3514 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
3515 `unsigned' when comparing against one.
3517 * protoize.c (is_id_char): Change type of parameter `ch' to
3519 (munge_compile_params): Cast argument of ctype macro to (const
3521 (process_aux_info_file): Cast variable `aux_info_size' to int when
3522 comparing against one.
3523 (forward_to_next_token_char): Cast argument of ctype macro to
3524 `const unsigned char'.
3525 (edit_formals_lists): Likewise.
3526 (find_rightmost_formals_list): Likewise.
3527 (add_local_decl): Likewise.
3528 (add_global_decls): Likewise.
3529 (edit_fn_definition): Likewise.
3530 (do_cleaning): Likewise.
3531 (scan_for_missed_items): Likewise.
3532 (edit_file): Cast variable `orig_size' to (int) when comparing
3534 (main): Cast argument of ctype macro to `const unsigned char'.
3536 * recog.c (const_int_operand): Mark parameter `mode' with
3539 * regclass.c (record_reg_classes): Change type of variable `c' to
3540 `unsigned char'. Cast `char' array index to `unsigned char'.
3542 * reload.c (push_secondary_reload): Cast argument to
3543 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
3545 * reload1.c (calculate_needs): Cast `char' array index to
3547 (set_label_offsets): Change type of variable `i' to unsigned int.
3548 Cast result of XVECLEN() macro to unsigned when comparing against
3550 (mark_not_eliminable): Change type of variable `i' to unsigned.
3551 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
3552 when comparing against one.
3553 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
3554 comparing against one.
3555 (choose_reload_regs): Hide unused label `fail'.
3556 (reload_cse_simplify_operands): Cast `char' array index to
3558 (reload_combine_note_store): Mark parameter `set' with
3559 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
3561 (reload_cse_move2add): Remove unused variable `src2'.
3563 * sched.c: Include recog.h.
3564 (sched_note_set): Remove unused parameter `b'. All callers
3566 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
3567 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
3568 when comparing against one.
3570 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
3571 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
3572 comparing against one.
3574 * unroll.c (precondition_loop_p): Remove unused parameter
3575 `loop_end'. All callers changed.
3577 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3579 * reload1.c (maybe_fix_stack_asms): New static function.
3582 * reload.h (compute_use_by_pseudos): Declare.
3584 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
3585 (something_needs_reloads): Delete variable.
3586 (finish_spills): New function.
3587 (compute_use_by_pseudos): New function.
3589 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
3590 Use the reload_insn_chain instead of walking the rtl directly.
3592 (reload): Allocate and free spilled_pseudos.
3593 Ensure that all calls of spill_hard_reg are followed by a call to
3595 Use the insns_need_reload list instead of something_needs_reloads
3596 to find out if reload_as_needed must be called.
3597 Clear unused_insn_chains at the end.
3599 (calculate_needs_all_insns): Lose FIRST parameter. All callers
3601 Delete code to keep track of current basic block.
3602 Walk reload_insn_chain instead of the rtl structure. Build the
3603 insns_need_reload chain.
3604 Remember which insns need reloading/elimination by setting the
3605 appropriate fields in struct insn_chain, not by putting modes on the
3608 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
3609 arg INSN. All callers changed.
3610 Delete declaration of struct needs.
3611 Don't set something_needs_reloads.
3612 Record insn needs in the CHAIN argument.
3614 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
3616 (reload_as_needed): Lose FIRST arg. All callers changed.
3617 Walk the reload_insn_chain instead of the rtx structure.
3618 Delete code to keep track of current basic block.
3619 Rename one of the NEXT variables to OLD_NEXT.
3621 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
3623 (choose_reload_regs): Likewise.
3625 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
3628 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
3629 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
3630 (hard_regs_live, hard_regs_need_restore): Delete variables.
3631 (n_regs_saved): Now static.
3632 (referenced_regs, this_insn_sets): New variables.
3634 (setup_save_areas): Restructure the code a bit.
3636 (restore_referenced_regs): Delete function.
3637 (mark_referenced_regs): New function, similar to the old
3638 restore_referenced_regs, but mark registers in referenced_regs.
3640 (clear_reg_live): Delete function.
3641 (mark_set_regs): Renamed from set_reg_live. All callers changed.
3642 Only mark registers in this_insn_sets.
3644 (save_call_clobbered_regs): Rework this function to walk the
3645 reload_insn_chain instead of using the list of instructions directly.
3646 Delete code to keep track of register lives, compute live regs on the
3647 fly from information in the chain.
3648 Instead of calling restore_referenced_regs, use mark_referenced_regs,
3649 then walk the set it computes and call insert_restore as appropriate.
3651 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
3653 Restructure the code a bit. Test hard_regs_saved instead of
3654 hard_regs_need_restore.
3655 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
3656 args. All callers changed.
3657 Restructure the code a bit. Use TO_SAVE to determine which regs to
3658 save instead of more complicated test.
3659 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
3661 Create a new insn_chain structure for the new insn and place it
3664 * rtl.texi: Update documentation to reflect that reload no longer
3665 puts modes on the insns.
3667 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
3669 * function.c (purge_addressof_1): Force the first argument of a
3670 CALL insn to memory.
3672 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
3674 * rtl.h: Delete duplicate prototypes. Add some missing
3676 * rtlanal.c: (for_each_rtx): Formatting tweak.
3678 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3680 * real.c (emdnorm and etoasc): Disable round to even for c4x target
3681 to be compatible with TI compiler.
3683 * Makefile.in (USER_H): Add va-c4x.h to definition.
3685 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
3687 * function.c (purge_addressof_1): Fix typo in inequality: do
3688 bitfield optimization for equal mode sizes.
3689 * expmed.c (store_bit_field): Don't take subregs of subregs in
3690 the movstrict case. Tidy a potential problem in the multi-word case.
3691 (extract_bit_field): Likewise.
3693 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3695 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
3697 Compute max_uid_for_flow by calling get_max_uid after the scan.
3698 (find_basic_blocks_1): Don't emit NOPs here.
3700 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
3702 * alias.c (base_alias_check): Accept new args for the modes of the
3703 two references. Use them to determine if an AND can overlap. Update
3705 (memrefs_conflict_p): Assume sizes are aligned, and uses them
3706 to determine if an AND can overlap.
3708 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
3710 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
3711 check. Add comment to document problems with TARGET_SUN_FPA version
3713 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
3715 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3717 * Makefile.in (gencheck.o): Depend on gansidecl.h.
3719 * c-common.c (print_char_table): Add missing initializers.
3720 (scan_char_table): Likewise.
3721 (time_char_table): Likewise.
3723 * c-decl.c (c_decode_option): Mark parameter `argc' with
3725 (declare_parm_level): Mark parameter `definition_flag' with
3728 * c-lex.c (readescape): Use `(unsigned)1' in shift.
3729 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
3732 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
3734 (emit_call_1): Mark parameters `fndecl' and `funtype' with
3736 (expand_call): Cast result of MIN() to (unsigned int) when
3737 comparing against an unsigned value.
3739 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
3741 (make_definition): Remove unused parameter `op'. All callers
3743 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
3744 comparing against the result of pointer arithmetic.
3746 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
3747 when comparing against one.
3749 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
3750 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
3752 (output_die): Move variable `i' into the scope in which it is
3753 used. Change its type to `unsigned'.
3754 (output_die): Cast the result of `strlen' to (int) when passing it
3755 to ASM_OUTPUT_ASCII().
3756 (output_pubnames): Likewise.
3757 (output_line_info): Likewise.
3759 * emit-rtl.c (global_rtl): Add missing initializers.
3761 * explow.c (promote_mode): Mark parameter `for_call' with
3764 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
3765 `unsigned HOST_WIDE_INT' when comparing against one.
3766 (synth_mult): Change type of variable `cost' to int.
3767 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
3769 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
3770 when comparing against one.
3771 (get_inner_reference): Change variable `alignment' to unsigned.
3772 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
3773 int) when comparing against one.
3774 (expand_builtin_setjmp): Change type of variable `i' to size_t.
3776 * fold-const.c (div_and_round_double): Cast BASE to
3777 (HOST_WIDE_INT) when comparing against one.
3779 * gencheck.c: Include gansidecl.h.
3780 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
3782 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
3783 `tcode' with ATTRIBUTE_UNUSED.
3785 * real.c (edivm): Cast constant value to (unsigned long) in
3786 expression compared against an unsigned value.
3788 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
3789 comparing against one.
3790 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
3791 when comparing against one.
3793 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
3794 (unsigned int) when comparing against one. Likewise for
3796 (smallest_mode_for_size): Likewise.
3797 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
3798 (restore_storage_status): Likewise.
3800 * toplev.c (debug_args): Add missing initializer.
3801 (f_options): Spelling correction. Add missing initializers.
3802 (documented_lang_options): Likewise.
3803 (debug_end_source_file): Mark parameter `lineno' with
3806 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
3807 `decl' and `type' with ATTRIBUTE_UNUSED.
3809 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
3810 when comparing against one.
3811 (assemble_variable): Mark parameter `top_level' with
3813 (assemble_external_libcall): Mark parameter `fun' with
3815 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
3818 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
3820 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
3821 Replace use of r5 with use of r19.
3823 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
3825 * config/v850/v850.c (compute_register_save_size): Allow for the
3826 fact that helper functions save all registers, not just those used
3829 Replace constant 31 with macro LINK_POINTER_REGNUM.
3831 * config/v850/v850.md: Use 'indirect_operand' rather than
3832 'memory_operand' for bit test/set/clear patterns.
3834 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
3836 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
3837 * varasm.c (assemble_start_function et al): Don't call
3838 ASM_GLOBALIZE_LABEL for weak symbols.
3840 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
3842 * cse.c (equiv_constant): Check for NULL return from
3843 gen_lowpart_if_possible().
3845 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
3847 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
3849 * collect2.c (main): Pass -EL/-EB through to the compiler.
3851 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
3853 * expr.c (push_block): Handle targets where the stack grows
3854 to higher addresses, but args grow to lower addresses and
3855 ACCUMULATE_OUTGOING_ARGS is not defined.
3857 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
3859 * config/v850/v850.c (print_operand): Extend meaning
3860 of 'c' operands to support .vtinherit.
3862 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3864 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
3865 Added ATTRIBUTE_UNUSED to unused function arguments.
3866 (rc_reg_operand): New predicate.
3867 (c4x_rptb_insert): New function.
3868 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
3869 (c4x_optimization_options): New function.
3871 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
3872 (decrement_and_branch_on_count): New pattern.
3873 (rptb_top): Modified pattern to work with BCT optimization.
3875 * config/c4x/c4x.h (RC_REG): New register class.
3876 (rc_reg_operand): Define prototype.
3877 (IS_RC_REG): New macro.
3878 (IS_RC_OR_PSEUDO_REG): New macro.
3879 (IS_RC_OR_PSEUDO_REGNO): New macro.
3880 (OPTIMIZATION_OPTIONS): Define.
3882 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
3884 * collect2.c (extract_init_priority): No priority is 65535.
3886 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3888 * Makefile.in (build_tooldir): new variable, same as old
3889 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
3890 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
3891 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
3893 * configure.in (gxx_include_dir): set default based on unlibsubdir
3894 * Makefile.in (tooldir): ditto
3895 (cccp.o, cpplib.o): use unlibsubdir implicitly through
3896 gxx_include_dir, includedir and tooldir
3897 (protoize.o, unprotoize.o): ditto
3899 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
3901 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
3903 * config/arm/thumb.c (thumb_override_options): Add warning about
3904 PIC code not being supported just yet.
3906 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
3908 * flow.c: Update comment.
3909 (notice_stack_pointer_modification): New static function.
3910 (record_volatile_insns): Use it.
3911 (mark_regs_live_at_end): Mark the stack pointer as alive
3912 at the end of the function if current_function_sp_is_unchanging
3914 (life_analysis_1): Set current_function_sp_is_unchanging.
3915 * function.c: Define it.
3916 (init_function_start): Initialize it.
3917 * output.h: Declare it.
3918 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
3919 the stack pointer as alive at the end of the function if
3920 current_function_sp_is_unchanging is set.
3921 * i386.c (ix86_epilogue): Optimize the restoring
3922 of the stack pointer.
3924 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
3926 * version.c: Bump for snapshot.
3928 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
3930 * c-pragma.c (handle_pragma_token): If passed a token instead
3931 of a tree, use that as the pack value.
3933 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
3935 * flow.c (find_basic_blocks_1): Fix prototype.
3937 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
3939 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
3940 (struct tree_decl): New fields no_check_memory_usage.
3941 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
3942 (init_attributes): Register it as a new attribute.
3943 (decl_attributes): Set flags on functions given that attribute.
3944 * c-decl.c (duplicate_decls): Merge new attribute.
3945 * expr.h (current_function_check_memory_usage): Declare new var.
3946 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
3947 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
3948 current_function_check_memory_usage.
3949 * function.h: Add field to struct function.
3950 * function.c (current_function_check_memory_usage): Define it.
3951 (push_function_context_to, pop_function_context_from): Save and
3953 (expand_function_start): Set it, based on global flag and function
3956 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
3957 check non-automatic variables, to permit detection of writes to
3958 read-only locations in embedded systems without memory management.
3959 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
3960 when emitting chkr_set_right_libfunc call, even if the argument is
3961 BLKmode or variable-sized; don't abort.
3963 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
3964 symbols in Pmode, not VOIDmode.
3966 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
3968 * cppexp.c: When forcing unsigned comparisons, cast both sides
3971 * cpphash.h: Move static declaration of hashtab[]...
3972 * cpphash.c: ...here.
3974 * cpplib.c: Cast difference of two pointers to size_t before
3975 comparing it to size_t. Cast signed to unsigned
3976 before comparing to size_t. (FIXME: struct argdata should use
3977 unsigned buffer sizes.)
3978 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
3979 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
3980 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
3981 size_t before comparison.
3983 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
3985 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
3986 (find_basic_blocks_1): Similarly.
3987 * output.h (find_basic_blocks): Fix prototype.
3988 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
3989 find_basic_blocks anymore.
3991 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
3993 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
3994 (sbitmap_free, sbitmap_vector_free): New macros.
3995 * output.h (rtl_dump_file): Declare.
3997 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
3999 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
4001 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4003 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
4005 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
4006 (divide): Remove unused variable `tmp'.
4007 (si_to_float): Cast numeric constant to (SItype) before comparing
4010 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
4012 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
4013 * gcc.c (add_preprocessor_option): Correct typo when allocating
4014 memory, sizeof() argument had one too many `*'.
4015 (add_assembler_option): Likewise.
4016 (add_linker_option): Likewise.
4017 * gcov.c (output_data): Likewise.
4018 * local-alloc.c (memref_used_between_p): Likewise.
4019 (update_equiv_regs): Likewise.
4020 * loop.c (strength_reduce): Likewise.
4021 * reg-stack.c (record_asm_reg_life): Likewise.
4022 (subst_asm_stack_reg): Likewise.
4023 * reorg.c (dbr_schedule): Likewise.
4025 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4027 * flow.c (life_analysis_1): Break out some functions.
4028 (find_basic_blocks_1): Likewise. Also move some variables out and
4030 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
4031 new static var nonlocal_label_list with it.
4032 (active_eh_region, nested_eh_region, label_value_list,
4033 nonlocal_label_list): New static variables.
4034 (make_edges, delete_unreachable_blocks, delete_block): New static
4035 functions, broken out of find_basic_blocks_1.
4036 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
4037 noop_move_p): New static functions, broken out of life_analysis_1.
4039 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
4041 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
4042 Take extra care for op0 now possibly being a subreg.
4043 (extract_bit_field): Likewise.
4044 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
4045 the reg to memory if there is no equal sized integral mode.
4046 * stor-layout.c (int_mode_for_mode): New function.
4047 * machmode.h: Prototype it.
4049 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
4051 * global.c (build_insn_chain): Verify no real insns exist past the
4052 end of the last basic block, then exit the loop.
4054 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
4056 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
4058 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
4060 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
4062 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
4064 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
4066 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
4068 * flow.c (find_basic_blocks): Correctly determine when a call
4069 is within an exception region.
4071 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
4073 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
4075 * cpplib.h: Protect from multiple inclusions.
4076 * cpplib.c: Fix minor formatting problems.
4078 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
4080 * jump.c (jump_optimize): Revert accidental patch.
4082 * Makefile.in (cpplib.o): Use unlibsubdir.
4084 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
4086 * loop.c (get_condition): Allow combine when either compare is
4089 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
4091 * version.c: Bump for snapshot.
4093 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
4095 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
4096 (init_lex): Initialize ridpointers[RID_BYREF].
4097 * c-lex.h (enum rid): Add RID_BYREF.
4098 * c-parse.gperf: Add RID_BYREF as a type qualifier.
4099 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
4100 (encode_type_qualifiers): Similarly
4101 * c-gperf.h: Rebuilt.
4103 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
4105 * c-common.c (type_for_mode): Only return TItype nodes when
4106 HOST_BITS_PER_WIDE_INT is >= 64 bits.
4107 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
4108 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
4109 (init_decl_processing): Only create TItype nodes when
4110 HOST_BITS_PER_WIDE_INT is >= 64 bits.
4111 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
4112 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
4114 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4116 * stmt.c (n_occurrences): New static function.
4117 (expand_asm_operands): Verify that all constrains match in the
4118 number of alternatives.
4119 Verify that '+' or '=' are at the beginning of an output constraint.
4120 Don't allow '&' for input operands.
4121 Verify that '%' isn't written for the last operand.
4122 * reload.c (find_reloads): Abort if an asm is found with invalid
4123 constraints; all possible problems ought to be checked for earlier.
4125 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4127 * flags.h (flag_branch_on_count_reg): Always declare
4128 * toplev.c (flag_branch_on_count_reg): Likewise.
4129 * toplev.c: Fix typos.
4131 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
4134 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
4136 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
4138 (find_basic_blocks_1): Add a nop to the end of a basic block when
4139 a trailing call insn does not have abnormal control flow.
4140 * gcse.c (pre_transpout): New variable.
4141 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
4142 (compute_pre_transpout): Calculate it.
4143 (compute_pre_ppinout): Use it to eliminate impossible placements
4144 due to abnormal control flow through calls.
4145 (compute_pre_data): Call compute_pre_transpout.
4147 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4149 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
4151 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
4153 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
4154 and matching define_insns): Tack on a `use' of the table label, so
4155 flow analysis will recognize a tablejump.
4157 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
4159 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
4160 always end basic blocks for abnormal edge reasons.
4162 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
4164 * config/i386/i386.h: Remove definition of
4165 HANDLE_PRAGMA_PACK_PUSH_POP.
4167 * config/i386/go32.h: Add definition of
4168 HANDLE_PRAGMA_PACK_PUSH_POP.
4170 * config/i386/win32.h: Add definition of
4171 HANDLE_PRAGMA_PACK_PUSH_POP.
4173 * config/i386/cygwin32.h: Add definition of
4174 HANDLE_PRAGMA_PACK_PUSH_POP.
4176 * c-pragma.c (insert_pack_attributes): Do not insert
4177 attributes unless #pragma pack(push,<n>) is in effect.
4179 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
4181 * expr.c (emit_group_store): Handle a PARALLEL destination.
4183 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
4185 * gcse.c (pre_insert_insn): When a call ends a bb, insert
4186 the new insns before the argument regs are loaded.
4188 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4190 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
4191 (c-parse.gperf): Update comments describing invocation flags.
4192 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
4194 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
4196 * reload1.c (reload): Call free before clobbering the memory
4197 locations or constants pointers.
4199 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4201 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
4202 for efficiency by checking whether we need to modify the current
4203 stack permission at all.
4204 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
4205 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
4206 __enable_execute_stack libcall here too if
4207 TRANSFER_FROM_TRAMPOLINE is defined.
4208 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
4211 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
4213 * Makefile.in (DRIVER_DEFINES): Remove last change.
4215 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4217 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
4218 insns we're going to copy.
4219 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
4221 * loop.c (count_one_set): Add prototype.
4223 * caller-save.c (restore_referenced_regs): Lose mode argument.
4224 (insert_save): Lose mode argument.
4225 (insert_restore): Lose mode argument.
4226 (insert_one_insn): Lose mode argument.
4227 (save_call_clobbered_regs): Lose mode argument.
4228 (setup_save_areas): Take no argument and return void. All callers
4230 Don't verify validity of memory addresses.
4231 * reload.h (setup_save_ares): Adjust prototype.
4232 (save_call_clobbered_regs): Likewise.
4233 * reload1.c (delete_caller_save_insns): New function.
4234 (caller_save_spill_class): Delete variable.
4235 (caller_save_group_size): Delete variable.
4236 (reload): Call setup_save_areas and save_call_clobbered_regs
4237 in the main loop, before calling calculate_needs_all_insns.
4238 Don't call save_call_clobbered_regs after the loop.
4239 Call delete_caller_save_insns at the end of an iteration if
4241 Delete code to manage caller_save_spill_class.
4242 Emit the final note before setting reload_first_uid.
4243 Simplify test that determines whether reload_as_needed gets run.
4244 (calculate_needs): Delete code to manage caller_save_spill_class.
4246 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
4248 * collect2.c (main): Initialize ld_file_name.
4250 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
4252 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
4253 check for flag_function_sections.
4255 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4257 * cse.c (insert_regs): Fix bug in Sep 24 change.
4259 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4261 * flags.h (flag_dump_unnumbered): Declare.
4262 * toplev.c (flag_dump_unnumbered): Don't declare.
4263 * print-rtl.c (flags.h): Include.
4264 (print_rtl_single): Add return value.
4265 * rtl.h (print_rtl_single): Update declaration.
4266 * flow.c (flag_dump_unnumbered): Don't declare.
4267 (print_rtl_with_bb): Use return value of print_rtl_single.
4269 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4271 * loop.c (count_one_set): New static function, broken out of
4273 (count_loop_regs_set): Call it.
4274 * global.c (mark_reg_store): Handle clobbers here by not calling
4276 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
4277 is in fact a clobber.
4278 * integrate.c (process_reg_param): New function, broken out of
4279 expand_inline_function.
4280 (expand_inline_function): Call it.
4283 * i386.md (addsidi3_1): Delete unused variable temp.
4284 (addsidi3_2): Likewise.
4285 (clstrstrsi): Delete unused variable addr1.
4287 * rtl.h: Don't declare any functions also declared in recog.h.
4289 * Makefile.in (stupid.o): Update dependencies.
4290 (global.o): Likewise.
4292 * global.c: Include reload.h
4293 (reg_becomes_live): New function.
4294 (reg_dies): New function.
4295 (build_insn_chain): New function.
4296 (global_alloc): Call build_insn_chain before calling reload.
4298 * reload.h (struct needs): New structure definition.
4299 (struct insn_chain): Likewise.
4300 (reload_insn_chain): Declare variable.
4301 (new_insn_chain): Declare function.
4304 * reload1.c (reload_startobj): New variable.
4305 (reload_insn_chain): New variable.
4306 (unused_insn_chains): New variable.
4307 (new_insn_chain): New function.
4308 (init_reload): Initialize reload_startobj, not reload_firstobj.
4309 (reload): Initialize reload_firstobj.
4310 Before returning, free everything on the reload_obstack.
4312 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
4313 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
4314 current_chain): New variables.
4315 (reg_where_born): Delete variable.
4316 (REG_WHERE_BORN): New macro.
4317 (find_clobbered_regs): New function.
4318 (stupid_life_analysis): Don't allocate/free reg_where_born.
4319 Allocate and free reg_where_born_exact, reg_where_born_clobber,
4320 reg_where_dead_chain.
4321 Use REG_WHERE_BORN instead of reg_where_born.
4322 While processing the insns, build the reload_insn_chain with
4323 information about register lifetimes.
4324 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
4325 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
4327 Compute and information about birth and death of pseudo registers in
4328 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
4329 Delete code to set elements of reg_where_born.
4331 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4333 * tree.def (GOTO_EXPR): Modified documentation.
4334 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
4337 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
4339 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
4340 loop_final_value, loop_comparison_code): No longer static.
4341 (unroll_loop): Delete loop_start_value update.
4342 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
4343 loop_final_value, loop_comparison_code): Extern.
4344 (loop_start_value): Delete extern.
4345 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
4346 loop_comparison_value, loop_comparison_code): Delete.
4347 (loop_optimize): Remove initialization for deleted variables.
4348 (strength_reduce): Delete analyze_loop_iterations call. Only call
4349 insert_bct if flag_branch_count_on_reg set.
4350 (analyze_loop_iterations): Delete.
4351 (insert_bct): Remove iteration count calculation. Move checks for
4352 viable BCT optimization to here. Obtain iteration count from
4353 loop_iterations and correct for unrolling. Check for enough
4354 iteration to be beneficial. Comment out runtime iteration count
4356 (insert_bct): Print iteration count in dump file. Remove
4357 loop_var_mode and use word_mode directly.
4359 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
4360 * rs6000.c (rs6000_override_options): Use it.
4361 (optimization_options): Enable use of flag_branch_on_count_reg.
4362 * rs6000.md (define_function_unit): Describe 604e.
4364 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4366 * loop.c (move_movables): Corrected threshold calculation for
4367 moved_once registers.
4369 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4371 * loop.c (combine_givs_p): Fix test for identical givs.
4373 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
4375 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
4376 call abort if the function is already defined.
4378 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
4380 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
4381 truncation is not a no-op.
4383 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
4385 * version.c: Bump for snapshot.
4387 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
4389 * version.c: Bump for snapshot.
4391 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
4393 * expmed.c (expand_divmod): Don't widen for computing remainder
4394 if we seem to have a divmod pattern for needed mode.
4396 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
4398 * cpplib.c (macroexpand): Correct off-by-one error in handling
4401 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
4403 * combine.c (expand_field_assignment): Don't do bitwise operations
4404 on MODE_FLOAT; pun to MODE_INT if possible.
4406 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
4407 scott snyder <snyder@d0sgif.fnal.gov>
4409 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
4410 linker. Recognize mangled names in quotes.
4412 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4414 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
4415 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
4416 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
4417 (lshrsi3_extend, lshrsi3_extend2): Ditto.
4419 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4421 * function.c (purge_addressof_1): If trying to take a sub-word
4422 integral piece of a floating point mode, put it on the stack.
4424 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
4426 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
4428 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
4430 * PROJECTS: Remove template friends.
4432 * collect2.c (sort_ids): Remove unused variable.
4434 * tm.texi (MATH_LIBRARY): Document.
4435 (NEED_MATH_LIBRARY): Remove.
4437 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
4438 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
4440 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
4442 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
4443 last_end to 0x7fffffff.
4445 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4447 * function.c (purge_addressof_1): Do not perform endianness
4448 corrections on bitpos, who we call will do it for us.
4450 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
4452 * h8300.c (WORD_REG_USED): Fix typo.
4453 (initial_offset): Use WORD_REG_USED.
4455 * h8300.c (handle_pragma): Fix typo.
4457 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4459 * caller-save.c (insert_save_restore): Break this function up
4460 into new functions insert_restore, insert_save and insert_one_insn.
4461 All callers changed.
4462 (insert_restore): New function, mostly broken out of
4463 insert_save_restore.
4464 (insert_save): Likewise.
4465 (insert_one_insn): Likewise.
4466 (restore_referenced_regs): New argument BLOCK. All callers changed.
4467 (save_call_clobbered_regs): Don't keep track of basic block boundaries
4468 in this function, do it in insert_one_insn instead.
4470 * reload1.c (reload): Break out some more pieces into separate
4472 (dump_needs): New function, broken out of reload.
4473 (set_initial_elim_offsets): Likewise.
4474 (init_elim_table): Likewise.
4475 (update_eliminables): Likewise.
4477 * global.c (global_alloc): Delete code to manage the scratch_list.
4478 * local-alloc.c (qty_scratch_rtx): Delete.
4479 (scratch_block): Delete.
4480 (scratch_list): Delete.
4481 (scratch_list_length): Delete.
4482 (scratch_index): Delete.
4483 (alloc_qty_for_scratch): Delete.
4484 (local-alloc): Update initialization of max_qty.
4485 Delete code to manage the scratch list.
4486 Delete code to allocate/initialize qty_scratch_rtx.
4487 (block_alloc): Don't allocate quantities for scratches.
4488 Delete code to manage the scratch list.
4489 * regs.h (scratch_list): Delete declaration.
4490 (scratch_block): Delete declaration.
4491 (scratch_list_length): Delete declaration.
4492 * reload1.c (reload): Delete code to manage the scratch list.
4493 (spill_hard_reg): Likewise.
4494 (mark_scratch_live): Delete.
4496 * recog.c (alter_subreg): Delete declaration.
4498 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
4500 * Makefile.in (cccp.o): Fix typo in last patch.
4502 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4504 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
4505 * config/sh/lib1funcs.asm (___set_fpscr): Add.
4507 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
4509 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
4510 NULL_RTX as an argument.
4512 * Makefile.in (unlibsubdir): Define.
4513 (DRIVER_DEFINES): Use unlibsubdir.
4514 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
4515 (stmp-fixinc): Similarly.
4517 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
4519 * regmove.c (regmove_optimize): Add variable old_max_uid.
4520 At the end of the function, update basic_block_end.
4522 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4524 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
4525 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
4528 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
4530 * config/arm/arm.c: Improve interworking support.
4532 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4534 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
4535 copied from reload_out[r] .
4537 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
4539 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
4540 with more than three size ranges.
4542 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
4544 * rtl.c (mode_name): Add a null string at the end of the array.
4545 (mode_wider_mode): Change type to unsigned char.
4546 (mode_mask_array): New variable.
4547 (init_rtl): Update for mode_wider_mode type change.
4549 * rtl.h (mode_wider_mode): Change type to unsigned char.
4550 (mode_mask_array): Declare.
4551 (GET_MODE_MASK): Use mode_mask_array.
4553 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
4555 * calls.c (expand_call) : Encapsulate code into
4556 copy_blkmode_from_reg.
4557 * expr.c (copy_blkmode_from_reg): New function.
4558 * expr.h (copy_blkmode_from_reg): New function.
4559 * integrate.c (function_cannot_inline_p): We can inline
4561 (expand_inline_function): Use copy_blkmode_from_reg
4562 if needed. Avoid creating BLKmode REGs.
4563 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
4566 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
4568 * config/v850/v850.c: Add function prototypes.
4569 Add support for v850 special data areas.
4571 * config/v850/v850.h: Add support for v850 special data areas.
4573 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
4574 HANDLE_PRAGMA_PACK_PUSH_POP.
4575 (push_alignment): New function: Cache an alignment requested
4576 by a #pragma pack(push,<n>).
4577 (pop_alignment): New function: Pop an alignment from the
4579 (insert_pack_attributes): New function: Generate __packed__
4580 and __aligned__ attributes for new decls whilst a #pragma pack
4582 (add_weak): New function: Cache a #pragma weak directive.
4583 (handle_pragma_token): Document calling conventions. Add
4584 support for #pragma pack(push,<n>) and #pragma pack (pop).
4586 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
4587 are defined enable HANDLE_PRAGMA_PACK.
4588 Move 'struct weak_syms' here (from varasm.c).
4589 Add pragma states for push and pop pragmas.
4591 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
4594 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
4595 HANDLE_GENERIC_PRAGMAS.
4597 * varasm.c: Move definition of 'struct weak_syms' into
4599 (handle_pragma_weak): Deleted.
4601 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
4603 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
4605 * c-decl.c (start_function): Add invocation of
4606 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
4608 * tm.texi: Remove description of non-existant macro
4609 SET_DEFAULT_SECTION_NAME.
4611 (HANDLE_SYSV_PRAGMA): Document.
4612 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
4614 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
4616 * config.sub: Recognize i[34567]86-pc-udk as new target.
4617 * configure.in: Likewise.
4618 * config/i386/t-udk: New file.
4619 * config/i386/udk.h: New file.
4621 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
4623 * reorg.c (check_annul_list_true_false): Remove unused variables.
4624 (steal_delay_list_from_target): Add missing "used_annul" variable.
4625 (try_merge_delay_insns): Close out half formed comment.
4627 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
4629 * cpplib.c (macroexpand): If arg->raw_before or
4630 arg->raw_after, remove any no-reexpansion escape at the
4631 beginning of the pasted token. Correct handling of whitespace
4632 markers and no-reexpand markers at the end if arg->raw_after.
4634 * toplev.c (documented_lang_options): Recognize -include,
4635 -imacros, -iwithprefix, -iwithprefixbefore.
4636 * cpplib.c (cpp_start_read): Process -imacros and -include
4637 switches at the same time and in command-line order, after
4638 initializing the dependency-output code. Emit properly nested
4639 #line directives for them. Emit a #line for the main file
4640 before processing these switches, and don't do it again
4643 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
4645 * function.c (purge_addressof_1): Use bitfield manipulation
4646 routines to handle mem mode < reg mode.
4648 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
4650 * reorg.c (try_merge_delay_insns): Account for resources referenced
4651 in each instruction in INSN's delay list before trying to eliminate
4652 useless instructions. Similarly when looking at a trial insn's delay
4655 * reorg.c (check_annul_list_true_false): New function.
4656 (steal_delay_list_from_{target,fallthrough}): Call it and also
4657 refine tests for when we may annul if already filled a slot.
4658 (fill_slots_from_thread): Likewise.
4659 (delete_from_delay_slot): Return newly-created thread.
4660 (try_merge_delay_isns): Use its new return value.
4662 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
4664 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
4665 used to compute a giv or as some other non-counting use.
4667 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
4669 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
4670 * local-alloc.c (find_free_reg): Use it.
4671 * global.c (find_reg): Likewise.
4672 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
4674 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
4675 * caller-save.c (init_caller_save): Use it.
4676 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
4678 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
4680 * configure.in: Add --enable-cpplib option which uses cpplib
4681 for cpp, but doesn't link cpplib into cc1. Make help text
4682 capitalization consistent.
4683 * configure: Rebuilt.
4685 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
4687 * function.c (gen_mem_addressof): If the address REG is
4688 REG_USERVAR_P make the new REG be so also.
4689 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
4690 in an attempt to clarify slightly.
4692 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
4694 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
4695 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
4697 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
4699 * toplev.c: Fix last patch.
4701 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
4703 * loop.c (get_condition): Fix typo in May 9 change.
4705 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
4707 * invoke.texi (-fexceptions): Merge 2 different descriptions.
4709 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4711 * toplev.c (documented_lang_options): Spelling corrections.
4713 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
4715 * configure.in: new flags --with-ld and --with-as, equivalent
4716 to setting LD and AS environment variables. Test whether
4717 specified arguments are GNU commands, and report them with
4718 checking messages. Use the specified AS for configure
4721 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
4723 * gcc.c (find_a_file): when looking for `as' and `ld', return
4724 the DEFAULT program if it exists
4725 * collect2.c (main): use DEFAULT_LINKER if it exists
4727 * gcc.c (find_a_file): the test for existence of a full
4728 pathname was reversed
4730 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
4732 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
4733 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
4735 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
4737 * tree.h (TYPE_BINFO): Document.
4739 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
4741 * i386-coff.h (dbxcoff.h): Added.
4743 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
4745 * toplev.c: fix bad patch around flag_data_sections.
4747 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
4749 * reload1.c (reload): Use reload_address_index_reg_class and
4750 reload_address_base_reg_class when setting
4751 caller_save_spill_class. (Patch generated by Jim Wilson:
4754 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
4756 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
4757 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
4758 * expr.c (store_field): Add alias_set parameter. Set the
4759 MEM_ALIAS_SET accordingly, if the target is a MEM.
4760 (expand_assignment): Use it.
4761 (store_constructor_field): Pass 0.
4762 (expand_expr): Likewise.
4764 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
4766 * flags.h: Add flag_data_sections.
4767 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
4768 (compile_file): Error if flag_data_sections not supported.
4769 * varasm.c (assemble_variable): Handle flag_data_sections.
4770 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
4771 * config/mips/elf.h: Likewise.
4772 * config/mips/elf64.h: Likewise.
4773 * invoke.texi: Describe -fdata-sections.
4775 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
4777 * invoke.texi (-ffloat-store): Clarify that this option
4778 does not affect intermediate results -- only variables.
4780 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
4782 * cpp.texi: Update for Fortran usage from Craig.
4784 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
4786 * rs6000.c (function_arg_boundary): Revert accidental change on
4789 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
4791 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
4792 (output_mi_thunk): Declare.
4794 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
4795 (output_function_profiler): Use r12 for temp, instead of r11 so
4796 that we preserve the static chain register.
4798 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
4800 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
4802 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4804 * sh.c (gen_shl_sext): Fix case 5.
4806 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4808 * reload1.c (reload_combine): Re-add line that got accidentally lost.
4810 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4812 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
4813 accessing variables until they are initialized via va_arg().
4815 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4817 * reload1.c (reload_combine): Initialize set before using.
4819 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
4821 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
4824 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
4826 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
4827 operand3 with mask before using it. Patch provided by Jim Wilson.
4829 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4831 * config/sparc/sparc.c (function_value): Perform the equivalent of
4832 PROMOTE_MODE for ARCH64.
4833 (eligible_for_epilogue_delay): Allow DImode operations in delay
4834 slot of a return for ARCH64.
4836 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4838 * sh.md (sqrtsf2): Fix mode of sqrt.
4840 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4842 * reload1.c (choose_reload_regs): Also try inheritance when
4843 reload_in is a stack slot of a pseudo, even if we already got a
4846 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4848 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
4849 (reload_cse_regs): New function body: call reload_cse_regs_1,
4850 reload_combine, reload_cse_move2add.
4851 When doing expensive_optimizations, call reload_cse_regs_1 a
4852 second time after reload_cse_move2add.
4853 (reload_combine, reload_combine_note_store): New functions.
4854 (reload_combine_note_use): New function.
4855 (reload_cse_move2add, move2add_note_store): New functions.
4857 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4859 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
4860 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
4862 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
4863 more than 3 such reloads.
4865 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
4866 RELOAD_FOR_X_ADDR_ADDR reload.
4868 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4870 * expr.c (store_constructor): When initializing a field that is smaller
4871 than a word, at the start of a word, try to widen it to a full word.
4873 * cse.c (cse_insn): When we are about to change a register,
4874 remove any invalid references to it.
4876 (remove_invalid_subreg_refs): New function.
4877 (mention_regs): Special treatment for SUBREGs.
4878 (insert_regs): Don't strip SUBREG for call to mention_regs.
4879 Check if reg_tick needs to be bumped up before that call.
4880 (lookup_as_function): Try to match known word_mode constants when
4881 looking for a norrower constant.
4882 (canon_hash): Special treatment for SUBREGs.
4884 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4886 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
4887 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
4888 defined, emit libcall to __enable_execute_stack. Also fix opcodes
4889 and offsets in actual stack trampoline code so they match the
4890 commentary and actually work.
4892 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4894 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
4896 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
4897 tmake_file. Set extra_parts to needed crt objects.
4898 * configure: Rebuilt.
4899 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
4900 (TARGET_DEFAULT): Set if default is v9 or ultra.
4901 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
4902 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
4903 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
4904 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
4905 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
4906 (TARGET_VERSION): Define.
4907 (MULTILIB_DEFAULT): Define.
4908 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
4909 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
4910 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
4912 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
4913 * config/sparc/sparc.c (sparc_override_options): If arch and
4914 pointer size disagree, emit diagnostic and fix it up. If
4915 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
4916 V8PLUS in 64-bit mode.
4917 * config/sparc/t-linux64: New file.
4918 * config/sparc/t-sol2-64: New file.
4919 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
4920 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
4921 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
4922 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
4923 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
4924 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
4926 (STARTFILE_SPEC): Set approriately based upon those.
4927 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
4928 disposition of DEFAULT_ARCH32_P.
4929 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
4930 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
4931 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
4932 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
4933 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
4935 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
4937 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
4939 * rtl.h (init_virtual_regs): New function.
4940 * emit-rtl.c (init_virtual_regs): Define.
4941 (insn_emit): Use it.
4942 * integrate.c (save_for_inline_copying): Likewise.
4944 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
4946 * config/arm/thumb.h: The following patches were made by Jim Wilson:
4947 (enum reg_class): Add NONARG_LO_REGS support.
4948 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
4949 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
4950 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
4951 completes. Re-enable HImode REG+OFFSET addresses.
4952 (LEGITIMIZE_RELOAD_ADDRESS): Define.
4954 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
4956 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
4958 * alpha.c (get_aligned_mem): Revert Sep 20 change.
4959 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
4960 (alpha_align_insns): Properly calculate initial offset wrt max_align.
4962 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
4964 * arm.c (find_barrier): Revert change of Apr 23. Handle table
4965 jumps as a single entity, taking into account the size of the
4968 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4970 * tree.def (SWITCH_EXPR): New tree node definition.
4972 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
4974 * version.c: Bump for snapshot.
4976 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
4978 * version.c: Bump for snapshot.
4980 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
4982 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
4985 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
4987 * Revert this patch.
4988 * reload.c (find_reloads): Do not replace a pseudo with
4989 (MEM (reg_equiv_addr)) in the initializing insn for the
4992 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
4994 * final.c (final_scan_insn): Disable tracking CC across branches.
4996 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
4998 * expr.h (eh_rtime_match_libfunc): New extern declaration.
4999 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
5000 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
5001 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
5002 NULL. Only include <stdio.h> if inhibit_libc is not defined.
5004 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
5006 * toplev.c (rest_of_compilation): Skip compiling anything with
5007 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
5009 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
5011 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
5012 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
5013 use in_libcall_block.
5014 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
5015 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
5018 Mon Sep 21 14:02:23 1998
5020 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
5021 typo in no-fancy-math-387 description.
5023 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
5025 * version.c: Bump for snapshot.
5027 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
5029 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
5031 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
5033 * i386.h: (TARGET_SWITCHES) Add description fields for flags
5034 documented in install.texi.
5035 (TARGET_OPTIONS) Likewise.
5037 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
5039 * version.c: Bump for snapshot.
5041 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
5043 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
5044 * cccp.c (main): Likewise.
5046 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
5047 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
5050 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
5052 * Makefile.in (LIBS): Link in libiberty.a.
5053 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
5055 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
5057 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
5058 it to update bb boundaries. Update caller.
5059 * function.c (reposition_prologue_and_epilogue_notes): Update
5060 bb boundaries wrt the moved note.
5062 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
5064 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
5066 * configure: Regenerate.
5068 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
5070 * alpha.c (alpha_sr_alias_set): New variable.
5071 (override_options): Set it.
5072 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
5073 (mode_mask_operand): Fix signed-unsigned comparision warning.
5074 (alpha_expand_block_move): Likewise.
5075 (print_operand): Likewise.
5076 (get_aligned_mem): Use change_address.
5077 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
5078 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
5079 (alphaev4_next_nop, alphaev5_next_nop): New functions.
5080 (alpha_align_insns): Remade from old alphaev5_align_insns
5081 to handle multiple processors.
5082 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
5083 * output.h (label_to_alignment): Prototype.
5085 * tree.c (new_alias_set): New function.
5086 * tree.h (new_alias_set): Declare it.
5087 * c-common.c (c_get_alias_set): Use it.
5089 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
5091 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
5092 to an ABS expr, convert an unsigned input to signed.
5094 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
5096 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
5098 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5100 * configure.in: Add support for c4x targets.
5101 * configure: Rebuilt.
5103 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
5105 * combine.c (distribute_notes): If an insn is a cc0 user, only
5106 delete it if we can also delete the cc0 setter.
5108 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
5110 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
5111 (invert_truthvalue): Enable truthvalue inversion for
5112 floating-point operands if -ffast-math.
5114 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
5116 * configure.in: Disable collect2 for nextstep. Instead use
5118 * configure: Rebuilt.
5119 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
5120 (ENDFILE_SPEC): Define.
5121 (OBJECT_FORMAT_MACHO): Define.
5122 (EH_FRAME_SECTION_ASM_OP): Define.
5123 * crtstuff.c: Handle MACHO.
5125 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
5127 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
5129 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
5131 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
5132 (_fpadd_parts): Get sign right for 0.
5134 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
5136 * ginclude/varargs.h: Add support for C4x target.
5137 * ginclude/stdargs.h: Likewise.
5139 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
5141 * alpha.c (alpha_return_addr): SET should be VOIDmode.
5142 (alpha_emit_set_long_const): Rewrite to be callable from reload
5144 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
5145 * alpha.md (movdi): Likewise.
5147 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
5149 * arm.c (add_constant): New parameter address_only, change caller.
5150 Set it non-zero if taking the address of an item in the pool.
5151 (arm_reorg): Handle cases where we need the address of an item in
5154 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
5156 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
5157 memory addresses that are not in standard canonical form.
5159 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
5161 * README.C4X: New file with information about the c4x ports.
5162 * ginclude/va-c4x.h: New file for c4x varargs support.
5163 * config/c4x: New directory with c4x port files.
5165 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
5167 * reload.c (find_reloads): Do not replace a pseudo with
5168 (MEM (reg_equiv_addr)) in the initializing insn for the
5171 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
5173 * toplev.c (rest_of_compilation): Set bct_p on second call to
5175 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
5177 (strength_reduce): Only call analyze_loop_iterations and
5178 insert_bct if bct_p set.
5179 (check_dbra_loop): Fix typo.
5180 (insert_bct): Use word_mode instead of SImode.
5181 (instrument_loop_bct): Likewise. Do not delete iteration count
5182 condition code generation insn. Initialize iteration count before
5184 * rtl.h (loop_optimize): Update prototype.
5186 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
5187 not doubleword aligned.
5189 * rs6000.c (optimization_options): New function.
5190 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
5191 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
5192 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
5193 first; cr1 can be used for FP record condition insns.
5195 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
5197 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
5200 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
5203 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
5205 (block_move_call): New function: Call a library routine to copy a
5207 (m32r_expand_block_move): New function: Expand a "movstrsi"
5208 pattern into a sequence of insns.
5209 (m32r_output_block_move): New function: Expand a
5210 "movstrsi_internal" pattern into a sequence of assembler opcodes.
5211 (m32r_block_immediate_operand): New function: Return true if the
5212 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
5214 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5216 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
5218 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
5220 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5222 * regmove.c (copy_src_to_dest): Check that modes match.
5224 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
5226 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
5228 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
5230 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
5231 narrower than FLOAT_REGS.
5233 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5235 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
5237 * Makefile.in (old_gxx_include_dir): removed
5239 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
5241 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
5244 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
5245 (sh_handle_pragma): Change function arguments to match new
5246 specification for HANDLE_PRAGMA.
5248 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5250 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
5252 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
5253 When generating output, initialize missing struct member to zero.
5255 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5257 * regmove.c (copy_src_to_dest): Don't copy if that requires
5258 (a) new register(s).
5260 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5262 * global.c (reg_allocno): Now static.
5263 * reload1.c (reg_allocno): Delete declaration.
5264 (order_regs_for_reload): Take no arguments. Don't treat regs
5265 allocated by global differently than those allocated by local-alloc.
5267 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
5269 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
5270 condition, fix format strings.
5271 (output_function_epilogue): Likewise.
5273 * m68k/m68k.c: Don't include <stdlib.h> directly.
5275 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
5277 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
5278 mem_first_set, mem_last_set; because 0 can be a CUID.
5279 (oprs_unchanged_p): Use new definition.
5280 (record_last_reg_set_info): Likewise.
5281 (record_last_mem_set_info): Likewise.
5282 (compute_hash_table): Likewise.
5284 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
5286 * rs6000.c (output_epilogue): Handle Chill.
5288 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
5289 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
5291 * combine.c (make_extraction): If no mode is specified for
5292 an operand of insv, extv, or extzv, default it to word_mode.
5293 (simplify_comparison): Similarly.
5294 * expmed.c (store_bit_field): Similarly.
5295 (extract_bit_field): Similarly.
5296 * function.c (fixup_var_regs_1): Similarly.
5297 * recog.c (validate_replace_rtx_1): Similarly.
5298 * mips.md (extv, extzv, insv expanders): Default modes for most
5299 operands. Handle TARGET_64BIT.
5300 (movdi_uld, movdi_usd): New patterns.
5302 * pa.c (emit_move_sequence): Do not replace a pseudo with its
5303 equivalent memory location unless we have been provided a scratch
5304 register. Similarly do not call find_replacement unless a
5305 scratch register has been provided.
5307 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5309 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
5312 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
5314 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
5315 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
5316 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
5317 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
5318 * c-decl.c (init_decl_processing): Update accordingly.
5319 * expr.c (expand_builtin): Likewise.
5321 * rtl.h (global_rtl): Add cfa entry.
5322 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
5323 (LAST_VIRTUAL_REGISTER): Update.
5324 * emit-rtl.c (global_rtl): Add cfa entry.
5325 (init_emit): Initialize it.
5326 * function.c (cfa_offset): New.
5327 (instantiate_virtual_regs): Initialize it.
5328 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
5329 (expand_function_end): Call expand_eh_return.
5330 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
5332 * except.c (current_function_eh_stub_label): Kill.
5333 (current_function_eh_old_stub_label): Likwise; update all references.
5334 (expand_builtin_set_return_addr_reg): Kill.
5335 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
5336 (expand_builtin_set_eh_regs): Kill.
5337 (eh_regs): Produce a third reg for the actual handler address.
5338 (eh_return_context, eh_return_stack_adjust): New.
5339 (eh_return_handler, eh_return_stub_label): New.
5340 (init_eh_for_function): Initialize them.
5341 (expand_builtin_eh_return, expand_eh_return): New.
5342 * except.h: Update prototypes.
5343 * flow.c (find_basic_blocks_1): Update references to the stub label.
5344 * function.h (struct function): Kill stub label elements.
5346 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
5347 register number is one that would be in the previous window.
5348 Provide a dummy definition for non-windowed targets.
5349 (get_reg_addr): New function.
5350 (get_reg, put_reg, copy_reg): Use it.
5351 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
5352 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
5354 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
5355 (alpha_init_expanders): Initialize it.
5356 (alpha_expand_epilogue): Use it.
5357 * alpha.h: Declare it.
5358 * alpha.md (eh_epilogue): New.
5360 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
5361 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
5363 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
5365 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
5368 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5370 * except.h (struct eh_entry): Add false_label field.
5371 (end_catch_handler): Add prototype.
5372 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
5373 (start_catch_handler): When using old style exceptions, issue
5374 runtime typematch code before continuing with the handler.
5375 (end_catch_handler): New function, generates label after handler
5376 if needed by older style exceptions.
5377 (expand_start_all_catch): No need to check for new style exceptions.
5378 (output_exception_table_entry): Only output the first handler label
5379 for old style exceptions.
5380 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
5381 mechanism into one function, if a runtime matcher is provided.
5383 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
5385 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
5387 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
5389 * integrate.c (copy_decl_list): Fix typo.
5391 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5393 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
5396 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
5398 * version.c: Bump for snapshot.
5400 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
5402 * version.c: Bump for snapshot.
5404 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
5406 * version.c: Bump for snapshot.
5408 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5410 * invoke.texi (C Dialect Options): Put back missing @end itemize.
5412 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
5414 * configure.in: remove usage of `!' to negate the result of a
5415 command; some common shells do not support it
5417 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5419 * configure.in: in sparc9-sol2 config, use 'if test' not
5421 * configure: Rebuilt.
5423 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
5425 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
5426 (CPP_CPU_DEFAULT_SPEC): Likewise.
5427 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
5428 for arch64 libfuncs.
5430 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
5433 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5435 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
5437 * collect2.c: Don't declare `sys_siglist' here.
5438 (my_strsignal): Prototype and define new function. Use it in
5439 place of `sys_siglist' hacks.
5441 * mips_tfile.c: Likewise.
5443 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
5444 (GCC_NEED_DECLARATIONS): Likewise.
5446 * system.h (strsignal): Prototype it, if necessary.
5447 (sys_siglist): Declare it, if necessary.
5449 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5451 * loop.c (move_movables): While removing insn sequences, preserve
5452 the next pointer of the most recently deleted insn when we skip
5455 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
5457 * objc/config-lang.in: Do not output the name of the selected
5458 thread file when building the front-end. The Makefile for the
5459 runtime library will do this.
5461 * objc/Make-lang.in: Do not build the runtime library or install
5462 the Objective C header files. The Makefile for the runtime
5463 library will do this.
5465 * objc/Makefile.in (all.indirect): Only build the front-end.
5466 (compiler): Rename to `frontend'.
5467 (obj-runtime): Remove target.
5468 (copy-headers): Likewise.
5469 (clean): No need to remove `libobjc.a' any longer.
5471 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
5473 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
5474 supported with -mcpu=xxx.
5476 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5478 * flow.c (mark_set_1): Recognize multi-register structure return
5479 values in CALL insns.
5480 (mark_used_regs): Likewise.
5481 (count_reg_sets_1): Likewise.
5482 (count_reg_references): Likewise.
5483 * rtlanal.c (note_stores): Likewise.
5484 (reg_overlap_mentioned_p): Likewise.
5485 * haifa-sched.c (check_live_1): Likewise.
5486 (update_live_1): Likewise.
5487 (sched_analyze_1): Likewise.
5488 (sched_note_set): Likewise.
5489 (birthing_insn_p): Likewise.
5490 (attach_deaths): Likewise.
5492 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
5495 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
5497 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
5499 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5501 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
5503 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5505 * configure.in: Add check for GAS subsection -1 support.
5506 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
5507 * configure config.in: Rebuilt.
5508 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
5509 SImode is subsection -1 works, else use DImode.
5510 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
5511 subsection -1 works.
5512 * config/sparc/sparc.c (sparc_output_addr_vec,
5513 sparc_output_addr_diff_vec): Use them if defined.
5515 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
5517 * tree.h (DECL_ORIGIN): New macro.
5518 * integrate.c (copy_and_set_decl_abstract_origin): New function.
5519 (copy_decl_list): Use it.
5520 (integrate_parm_decls): Likewise.
5521 (integrate_decl_tree): Likewise.
5522 * dwarf2out.c (decl_ultimate_origin): Simplify.
5523 * dwarfout.c (decl_ultimate_origin): Likewise.
5524 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
5525 (pushdecl): Likewise.
5527 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
5529 * config/rs6000/rs6000.c (output_epilog): Add Java support.
5531 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
5533 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
5535 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
5537 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
5538 empty or has a single entry.
5540 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
5541 before calling reg_to_stack.
5543 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
5545 * alpha.c (alphaev5_insn_pipe): Abort on default case.
5546 (alphaev5_next_group): Swallow CLOBBERs and USEs.
5548 * c-tree.h (warn_long_long): Declare it.
5550 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
5552 * emit-rtl.c (gen_lowpart_common): Disable optimization of
5553 initialized float-int union if the value is a NaN.
5555 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
5557 * c-lex.c (real_yylex): Don't warn about long long constants if
5558 we're allowing long long
5560 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
5562 * except.h (current_function_eh_stub_label): Declare.
5563 (current_function_eh_old_stub_label): Declare.
5564 * function.h (struct function): New members eh_stub_label and
5566 * except.c (current_function_eh_stub_label): New variable.
5567 (current_function_eh_old_stub_label): New variable.
5568 (init_eh_for_function): Clear them.
5569 (save_eh_status): Save them.
5570 (restore_eh_status): Restore them.
5571 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
5572 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
5573 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
5574 make an edge from the block that contains it to the block starting
5575 with the label if this label is one of the eh stub labels.
5576 If eh stub labels exist, show they are reachable from the last block
5579 * reload1.c (reload): Break out several subroutines and make some
5581 (calculate_needs_all_insns): New function, broken out of reload.
5582 (calculate_needs): Likewise.
5583 (find_reload_regs): Likewise.
5584 (find_group): Likewise.
5585 (find_tworeg_group): Likewise.
5586 (something_needs_reloads): New global variable, formerly in reload.
5587 (something_needs_elimination): Likewise.
5588 (caller_save_spill_class): Likewise.
5589 (caller_save_group_size): Likewise.
5590 (max_needs): Likewise.
5591 (group_size): Likewise.
5592 (max_groups): Likewise.
5593 (max_nongroups): Likewise.
5594 (group_mode): Likewise.
5595 (max_needs_insn): Likewise.
5596 (max_groups_insn): Likewise.
5597 (max_nongroups_insn): Likewise.
5598 (failure): Likewise.
5600 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
5602 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
5604 * loop.c (load_mems): Copy rtx for output mem.
5606 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
5608 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
5609 mips1 or mips2 either.
5611 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
5613 * pa.c (pa_reorg): New marking scheme for jumps inside switch
5615 (pa_adjust_insn_length): Update to work with new marking scheme
5616 for jumps inside switch tables.
5617 * pa.md (switch_jump): Remove pattern.
5618 (jump): Handle jumps inside jump tables.
5620 * Makefile.in (profile.o): Depend on insn-config.h
5622 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
5624 * iris6.h (DWARF2_UNWIND_INFO): Undef.
5626 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5628 Add preliminary native sparcv9 Solaris support.
5629 * configure.in: Recognize sparv9-*-solaris2*
5630 * configure: rebuilt
5631 * config.sub: Recognize sparcv9 just like sparc64.
5632 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
5633 config/sparc/sol2-cn.asm: Macroize so it can be shared between
5634 32-bit and 64-bit Solaris systems.
5635 * config/sparc/t-sol2: Assemble those with cpp.
5636 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
5637 (*TF*_LIBCALL): If ARCH64 use V9 names.
5638 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
5640 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
5642 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
5643 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
5645 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
5647 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
5648 to Pmode if CASE_VECTOR_MODE is something else.
5650 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
5652 * prefix.c (update_path): Correctly handle cases where PATH is
5653 a substring of the builtin prefix, but specifies a different
5656 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
5658 * expr.c: Corrected comment about what MOVE_RATIO does.
5659 * config/alpha/alpha.h: Ditto.
5660 * config/1750a/1750a.h: Ditto.
5661 * config/clipper/clipper.h: Ditto.
5662 * config/i386/i386.h: Ditto.
5664 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
5666 * configure.in (m68k-next-nextstep3*): Use collect2.
5667 Similarly for x86 NeXT configurations.
5668 * configure: Rebuilt.
5670 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
5672 * configure.in: Don't assume srcdir is .../gcc
5673 * configure: Rebuilt.
5675 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
5677 * global.c: Update comments.
5678 (global_alloc): Assign allocation-numbers
5679 even for registers allocated by local_alloc in case
5680 they are later spilled and retry_global_alloc is called.
5681 (mark_reg_store, mark_reg_clobber,
5682 mark_reg_conflicts, mark_reg_death): Always record a
5683 conflict with a pseudo register even if it has been
5684 assigned to a hard register.
5685 (dump_conflicts): Don't list pseudo registers already assigned to
5686 a hard register as needing to be allocated, but do list their
5688 * local-alloc.c: Update comment.
5690 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
5692 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
5693 * configure: Rebuilt.
5695 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
5697 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
5699 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
5700 for all targets that set -msoft-float.
5702 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5704 * toplev.c (print_switch_values): Make static to match prototype.
5706 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
5708 * configure.in: If we are unable to find the "gnatbind" program,
5709 then do not configure the ada subdir.
5710 * configure: Rebuilt.
5712 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
5714 * version.c: Bump for snapshot.
5716 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
5718 * version.c: Bump for snapshot.
5720 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5722 * Makefile.in (toplev.o): Depend on $(EXPR_H).
5723 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
5725 * gansidecl.h: Define ATTRIBUTE_NORETURN.
5727 * genattrtab.c: Have insn-attrtab.c include toplev.h.
5729 * genextract.c: Have insn-extract.c include toplev.h.
5731 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
5733 * toplev.c: Include expr.h.
5734 (really_sorry, fancy_abort): Remove prototypes.
5735 (set_target_switch): Add argument in prototype.
5736 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
5737 (v_really_sorry): Likewise.
5738 (print_version, print_single_switch, print_switch_values): Make
5739 static and add prototype arguments.
5740 (decl_printable_name): Add prototype arguments.
5741 (lang_expand_expr_t): New typedef.
5742 (lang_expand_expr): Declare as a lang_expand_expr_t.
5743 (incomplete_decl_finalize_hook): Add prototype argument.
5744 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
5745 (botch): Likewise for variable `s'.
5746 (rest_of_type_compilation): Mark variables `type' and `toplev'
5747 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
5748 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
5749 (display_help): Make variable `i' an `unsigned long'.
5750 (main): Remove unused parameter `envp'.
5751 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
5752 Cast -1 when comparing it with a `size_t'.
5754 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
5755 prototype with ATTRIBUTE_NORETURN.
5756 (fatal_insn_not_found, fatal_insn, really_sorry,
5757 push_float_handler, pop_float_handler): Add prototypes.
5758 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
5759 (do_abort, botch): Add prototypes.
5761 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
5763 * final.c (final): If a label is reached only from a single jump,
5764 call NOTICE_UPDATE_CC on the jump and its predecessor before
5765 emitting the insn after the label.
5767 * i386.h: Add AMD K6 support.
5768 Change TARGET_* macros to use table lookup.
5769 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
5770 (ADJUST_COST): Change definition to call function in i386.c.
5771 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
5772 * i386.c: Add AMD K6 support.
5773 Add constants for feature tests used by TARGET_* macros.
5774 (split_di): If before reload, call gen_lowpart and gen_highpart.
5775 (x86_adjust_cost): New function.
5776 (put_jump_code): New function.
5777 (print_operand): New codes 'D' and 'd'.
5778 * i386.md: New insn types. New insn attribute "memory".
5779 Redefine scheduling parameters to use new types and add AMD K6
5780 support. Explicitly set type of most insns.
5781 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
5782 Pro and K6 prefer movl $1,reg to incl reg.
5783 (adddi3, subdi3): Set cc_status.
5784 (DImode shift patterns): Change label counters from HOST_WIDE_INT
5785 to int; x86 can't have more than 2^31 DImode shifts per file.
5786 (setcc): Combine all setcc patterns. Allow writing memory.
5787 Combine all jump patterns using match_operator.
5788 (*bzero): Name pattern. Emit mutliple stos instructions when that
5789 is faster than rep stos.
5790 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
5793 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
5795 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
5798 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
5800 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
5801 not whatever we're generating now.
5803 * alpha.c (set_frame_related_p, FRP): New.
5804 (alpha_expand_prologue): Mark frame related insns.
5805 (alpha_expand_epilogue): Likewise, but with a null FRP.
5806 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
5807 * alpha.md (exception_receiver): New.
5808 * alpha/crtbegin.asm (.eh_frame): New beginning.
5809 (__do_frame_setup, __do_frame_takedown): New.
5810 * alpha/crtend.asm (.eh_frame): New ending.
5811 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
5812 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
5813 (ASM_FILE_START): Don't emit .file for dwarf2.
5815 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
5816 * rtl.c (reg_note_name): Likewise.
5817 * rtl.texi (REG_NOTES): Likewise.
5818 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
5821 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
5823 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
5824 * i386.md (movsf, movdf, movxf): Validate memory address returned
5825 from force_const_mem. Kill useless REG_EQUAL setting code.
5827 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
5829 * m68k.md (zero_extendsidi2): Fix typo.
5831 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
5833 * configure.in: Removed references to the removed file
5834 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
5835 * arm*-*-netbsd* and ns32k-*-netbsd*.
5836 * config/i386/xm-netbsd.h: Removed unnecessary file.
5837 * config/m68k/xm-netbsd.h: Likewise.
5838 * config/sparc/xm-netbsd.h: Likewise.
5839 * config/mips/xm-netbsd.h: Likewise.
5841 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
5843 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
5844 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
5846 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
5847 for exact section attributions.
5849 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
5851 * i386/crtdll.h (CPP_PREDEFINES): Define.
5853 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
5855 * m68k.md (5200 movqi): Do not allow byte sized memory references
5857 * m68k.c (output_move_qimode): Do not use byte sized operations on
5860 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
5861 explicit rules for building. Similarly for alloca, vfprintf,
5862 choose-temp and mkstemp, getopt, getopt1, and obstack.
5863 (INCLUDES): Add $(srcdir)/../include.
5864 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
5865 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
5867 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
5869 * gcc.c (do_spec_1): [case 'o'] Account for
5870 lang_specific_extra_outfiles.
5871 (main): Correctly clear all slots in outfiles for
5872 lang_specific_extra_outfiles. Set input_file_number before
5873 calling lang_specific_pre_link.
5875 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
5877 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
5879 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5881 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
5883 (sparc_output_deferred_case_vectors): If no work to do, return.
5884 Fix thinko in Sept 1 change.
5886 1998-09-03 SL Baur <steve@altair.xemacs.org>
5888 * Makefile.in: add semicolon in BISON definition for portability.
5890 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
5892 * config/nextstep.c (handle_pragma): Correct name of third
5895 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
5897 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
5898 * config/m32r/m32r.h: Make register 17 be fixed.
5899 * config/m32r/m32r.c: Use SImode for cc operations.
5901 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
5903 * invoke.texi (Warning Options): Add -Wnon-template-friend
5906 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
5908 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
5910 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
5912 * rs6000.md (movsf): Disable explicit secondary-reload-like
5913 functionality if TARGET_POWERPC64.
5914 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
5917 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
5919 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
5920 and term.h from fixinc.wrap.
5922 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5924 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
5925 safe to include both string.h and strings.h together.
5926 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
5927 which headers to search for function declarations. Continue to
5928 prefer string.h over strings.h when both are not acceptable.
5930 * acconfig.h (STRING_WITH_STRINGS): Add stub.
5932 * configure.in: Call GCC_HEADER_STRING.
5934 * system.h: Test STRING_WITH_STRINGS when deciding which headers
5935 to include. Continue to prefer string.h over strings.h when both
5938 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5940 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
5941 not assume top 32-bits of symbolic addresses are zero if
5944 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
5946 * ginclude/va-alpha.h: Protect entire second portion of the
5947 file against double inclusion.
5949 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
5951 Added support for the Boehm's garbage collector.
5952 * configure.in: Handle --enable-objc-gc.
5953 * configure: Rebuilt.
5954 * Makefile.in (CHECK_TARGETS): Add check-objc.
5955 (check-objc): New rule.
5956 * objc/Make-lang.in: Build a different Objective-C library that
5957 runs with the Boehm's collector.
5958 * objc/encoding.c (objc_round_acc_size_for_types): New function.
5959 * objc/encoding.c: Correctly compute the size of compound types in
5960 the presence of bitfields. Skip the variable name of the type if
5961 any. Added support for long long.
5962 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
5963 (_F_GCINVISIBLE): New mask.
5964 * objc/gc.c: New file. Compute the type memory mask associated with
5965 a class based on the runtime information.
5966 * objc/misc.c: Added the hooks that use the Boehm's collector
5967 allocation functions.
5968 * objc/objc-act.c (build_class_template): Generate a new class
5969 member (gc_object_type) to hold the class' type memory mask.
5970 (build_shared_structure_initializer): Initialize the new member to
5972 (encode_complete_bitfield): New function. Generate the new
5974 (encode_field_decl): Generate the new encoding only for the GNU
5976 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
5978 (class_get_gc_object_type): New function to mark a pointer instance
5979 variable as a weak pointer.
5980 * objc/objc-features.texi: New file.
5981 * objc/objc.h (gc_object_type): New class member.
5982 * objc/objects.c (class_create_instance): Create a typed memory
5983 object when compiled with Boehm's collector support.
5984 * objc/sendmsg.c (__objc_init_install_dtable): Call
5985 __objc_send_initialize instead of setting the initialize flag.
5986 (__objc_send_initialize): Call __objc_generate_gc_type_description
5987 to generate the class type memory mask. Rewrite the code that
5988 sends the +initialize so that it is called only once (bug report
5989 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
5990 * testsuite/objc: New testsuite for Objective-C type encoding.
5991 * testsuite/lib/objc-torture.exp: New file.
5992 * testsuite/lib/objc.exp: New file.
5994 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
5996 * jump.c (jump_optimize): In if/then/else transformations, add
5997 another call to modified_between_p for the jump insn.
5999 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
6001 * fix-header.c (symlink): Treat like readlink.
6003 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6005 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
6008 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
6010 * config/nextstep.h: Update HANDLE_PRAGMA macro.
6011 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
6012 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
6014 * config/nextstep.c (handle_pragma): Take three arguments, as per
6015 the new HANDLE_PRAGMA macro specification.
6016 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
6017 per the new HANDLE_PRAGMA macro specification.
6018 * config/i960/i960.c (process_pragma): Take three arguments, as
6019 per the new HANDLE_PRAGMA macro specification.
6021 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
6023 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
6024 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
6025 if unknown pragmas are encountered.
6026 (handle_sysv_pragma): Interpret return code from
6027 handle_pragma_token (). Return success/failure indication rather
6028 than next unprocessed character.
6029 (pragma_getc): New function: retrieves characters from the
6030 input stream. Defined when HANDLE_PRAGMA is enabled.
6031 (pragma_ungetc): New function: replaces characters back into the
6032 input stream. Defined when HANDLE_PRAGMA is enabled.
6034 * c-pragma.c (handle_pragma_token): Return success/failure status
6037 * c-pragma.h: Change prototype of handle_pragma_token().
6039 * varasm.c: (handle_pragma_weak): Only create this function if
6040 HANDLE_PRAGMA_WEAK is defined.
6042 * c-common,c (decl_attributes): If defined call the expression
6043 contained within the INSERT_ATTRIBUTES macro before adding
6044 attributes to a decl.
6046 * tm.texi (HANDLE_PRAGMA): Document the new verion of
6047 HANDLE_PRAGMA, which takes three arguments.
6048 (INSERT_ATTRIBUTES): Document this new macro.
6050 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
6051 new INSERT_ATTRIBUTES macro.
6053 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6055 * config/sparc/sparc.md (movdf): Only generate special RTL for
6056 LABEL_REFs when PIC.
6057 (move_label_di): Remove
6058 (movdi_pic_label_ref, movdi_high_pic_label_ref,
6059 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
6060 references when PIC.
6061 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
6062 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
6063 output an .xword for all 64-bit cases.
6065 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6067 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
6068 alignment, use FUNCTION_BOUNDARY instead.
6069 (sparc_output_deferred_case_vectors): Likewise.
6071 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6073 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
6074 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
6076 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
6078 * alpha/va_list.h: New file.
6079 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
6081 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
6083 * NEWS: Add SCO Openserver and Unixware 7 notes.
6087 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
6089 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
6090 (record_constant_1): Handle RANGE_EXPR.
6092 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
6094 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
6095 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
6096 and NOTE_INSN_RANGE_END specially.
6097 (reemit_notes): Likewise.
6099 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6101 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
6102 (ultrasparc_sched_init): Remove unneeded &.
6104 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
6106 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
6107 for m68020-60, to prevent the use of fintrz.
6109 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
6111 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
6113 * Makefile.in: Likewise.
6114 * configure: Regenerated.
6116 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
6118 * configure.in (gxx_include_dir): Changed to
6119 '${prefix}/include/g++'-${libstdcxx_interface}.
6120 * configure: Rebuilt.
6122 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
6124 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
6126 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
6127 *sequences* *below* which scalar moves will be used.
6129 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
6131 * collect2.c (mktemp): Delete unused declaration.
6133 * config/xm-netbsd.h: Remove unnecessary file.
6134 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
6135 file anymore, it is not needed.
6137 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
6139 * convert.c (convert_to_integer): Issue an error on conversions to
6142 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
6144 * Makefile.in: Add lang_tree_files and gencheck.h.
6145 * configure.in: Generate them.
6146 * gencheck.c: Include gencheck.h.
6148 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6150 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
6151 movdi_lo_sum_pic and movdi_high_pic and make visible.
6152 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
6153 emit these when Pmode is not SImode.
6154 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
6156 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
6158 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
6159 .linkonce directive after the first time.
6161 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
6163 * m68k.md (beq0_di): Generate correct (and more efficient) code when
6164 the clobbered operand overlaps with an input.
6165 (bne0_di): Similarly.
6167 * Makefile.in (INSTALL): Remove "--no-header" argument.
6169 * NEWS: Various updates.
6171 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6173 * config/sparc/sparc.c (arith_operand, const64_operand,
6174 const64_high_operand, arith_double_4096_operand): Mark mode as
6176 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
6178 (sparc_emit_set_const64): Remove unused variable i.
6179 (sparc_splitdi_legitimate): Likewise for addr_part.
6180 (ultra_code_from_mask): Likewise for mask.
6181 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
6182 reverse return values so it matches usage and comments.
6183 (ultra_flush_pipeline): Likewise.
6184 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
6185 this_type, and allow loads and stores of differing FP modes as
6186 they do not create a conflict.
6187 (ultra_find_type): Initialize fpmode to SFmode, fix
6188 parenthesization thinkos in large conditional.
6189 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
6190 Init free_slot_mask after ultra_cur_hist is reset, not before.
6191 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
6192 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
6193 use ultra_flush_pipeline instead, then re-init group pointer.
6194 Fix statement with no effect. If no progress made in, and no
6195 instructions scheduled at all, advance to new pipeline cycle else
6196 we get into an endless loop.
6197 (ultrasparc_adjust_cost): Remove previous arg.
6198 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
6200 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
6202 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
6203 code. Use reg_overlap_mentioned_p to detect when source and
6204 destination overlap.
6205 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
6207 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
6209 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
6210 COMPARISON_VAL, into invariant_p.
6212 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6214 * regmove.c (regclass_compatible_p): New function.
6215 (regmove_optimize): Use it.
6217 Use NREGS parameter insted of calling max_reg_num.
6219 (fixup_match_1): Don't use code = MINUS when later tieing with
6220 a hard register is likely.
6222 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6224 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
6225 COMPARISON_VAL was normalized.
6227 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
6229 * loop.c (check_dbra_loop): The loop ending comparison value
6230 must be an invariant or we can not reverse the loop.
6232 * loop.c (scan_loop): Count down from max_reg_num - 1 to
6233 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
6235 (load_mems_and_recount_loop_regs_set): Likewise.
6237 * i386.c (print_operand): Remove obsolete 'c' docs.
6239 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
6241 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
6242 * frame.c (init_object_mutex): New function.
6243 (init_object_mutex_once): Likewise.
6244 (find_fde): Call it.
6245 (__register_frame_info): Likewise.
6246 (__register_frame_info_table): Likewise.
6247 (__deregister_frame_info): Likewise.
6249 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
6251 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
6253 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6255 * loop.c (check_dbra_loop): Enable code for reversal
6256 of some loops without a known constant loop end.
6258 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
6260 * haifa-sched.c (last_clock_var): New.
6261 (schedule_block): Initialize it.
6262 (schedule_insn): Use it to fill insn modes with issue information.
6264 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
6265 Tag trapb and next insn with TImode.
6266 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
6267 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
6268 Invoke alphaev5_align_insns as appropriate.
6269 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
6270 (MD_SCHED_VARIABLE_ISSUE): New.
6271 * alpha.md (attr type): Add multi.
6272 (define_asm_attributes): New.
6273 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
6274 (arg_home): Likewise.
6275 (fnop, unop, realign): New.
6277 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
6279 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
6280 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
6282 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
6283 (rs6000-ibm-aix4.[12]*): Likewise.
6284 * configure: Regnerate.
6286 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
6288 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
6289 already contains the return address.
6291 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
6293 * calls.c (expand_call): Use bitfield instructions to extract/deposit
6294 word sized hunks when loading unaligned args into registers.
6296 * haifa-sched.c (sched_analyze_insn): Only create scheduling
6297 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
6299 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
6301 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6303 * loop.c (check_dbra_loop): Add some code that would allow reversal
6304 of some loops without a known constant loop end if it were enabled.
6306 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
6308 * mips.md (lshrsi3_internal2+2): Fix type-o.
6310 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6312 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
6313 correctly with regards to stdio.h.
6315 * calls.c: Remove stdarg.h/varargs.h.
6318 * combine.c: Likewise.
6319 * cpperror.c: Likewise.
6320 * cpplib.c: Likewise.
6321 * cpplib.h: Likewise.
6322 * doprint.c: Likewise.
6323 * emit-rtl.c: Likewise.
6324 * final.c: Likewise.
6325 * fix-header.c: Likewise.
6327 * genattr.c: Likewise.
6328 * genattrtab.c: Likewise.
6329 * gencodes.c: Likewise.
6330 * genconfig.c: Likewise.
6331 * genemit.c: Likewise.
6332 * genextract.c: Likewise.
6333 * genflags.c: Likewise.
6334 * genopinit.c: Likewise.
6335 * genoutput.c: Likewise.
6336 * genpeep.c: Likewise.
6337 * genrecog.c: Likewise.
6338 * mips-tfile.c: Likewise.
6339 * prefix.c: Likewise.
6340 * protoize.c: Likewise.
6341 * regmove.c: Likewise.
6342 * toplev.c: Likewise.
6345 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6347 * config/sparc/sparc.c (sparc_override_options): If not
6348 TARGET_FPU, turn off TARGET_VIS.
6349 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
6350 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
6351 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
6352 (movdi_insn_sp64): Add VIS fzero alternative.
6353 (clear_sf, clear_df): New VIS patterns.
6354 (movsf, movdf expanders): Allow fp_zero_operand flat out when
6356 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
6358 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
6360 * loop.c (n_times_set, n_times_used, may_not_optimize,
6361 reg_single_usage): Convert to varrays. All uses changed.
6362 (insert_loop_mem): Return a value.
6363 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
6364 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
6367 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
6370 * configure.in: Do not set thread_file to "irix" since no such
6373 * sparc.md (float abs/neg splits): Check reload_completed before
6374 calling alter_subreg.
6376 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6378 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
6380 * config/sparc/sparc.h: Declare it.
6381 * config/sparc/sparc.md (float abs/neg splits): Use it.
6382 (all other splits): Handle SUBREGs properly where necessary.
6383 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
6385 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
6387 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
6388 an insn on the unfilled_slots_list that has no delay slots.
6389 (fill_eager_delay_slots): Similarly.
6391 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
6393 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
6394 as an ordinary operand.
6396 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
6398 * tree.c (valid_machine_attribute): Don't apply attributes to both
6401 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
6403 * reload.c (operands_match_p): Handle rtvecs.
6405 * i386.c (legitimate_pic_address_disp_p): New.
6406 (legitimate_address_p): Use it.
6407 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
6408 Handle constant pool symbols just like statics.
6409 (emit_pic_move): Use Pmode not SImode for clarity.
6410 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
6411 [UNSPEC]: New, handling what we killed above.
6412 [PLUS]: Detect and abort on invalid symbol arithmetic.
6413 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
6415 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
6417 * alias.c: Include output.h.
6418 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
6419 different if we're in a varargs function.
6420 * Makefile.in (alias.o): Depend on output.h
6422 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6424 * sh.h (GIV_SORT_CRITERION): Delete.
6426 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
6428 * regclass.c (regclass): Use xmalloc/free instead of alloca.
6429 * stupid.c (stupid_life_analysis): Ditto.
6430 * reload1.c (reload): Ditto.
6432 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
6434 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
6435 arith_double_4096_operand, arith_double_add_operand): New
6437 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
6438 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
6439 them to transform add/sub 4096 into add/sub -4096.
6441 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6443 * loop.c (scan_loop): Allocate some slop to handle pseudos
6444 generated by move_movables.
6445 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
6448 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
6450 * tree.def (DECL_RESULT): Correct documentation.
6452 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6454 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
6455 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
6456 conflicts will all RELOAD_FOR_OUTPUT reloads.
6458 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
6459 loads the function result, substitute with a USE.
6461 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
6463 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
6464 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
6465 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
6466 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
6467 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
6468 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
6470 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
6471 'o' to 'm' for GPR variant constraints.
6473 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
6475 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
6477 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
6479 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
6480 when the source and destination overlap.
6482 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
6483 clash with global type.
6485 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
6487 * fixinc.irix: Add curses.h handling from fixinc.wrap.
6489 * c-common.c (combine_strings): Also set TREE_READONLY.
6490 Change warn_write_strings to flag_const_strings.
6491 * c-decl.c, c-tree.h: Likewise.
6493 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6495 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
6496 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
6497 sequence, use SET/IOR instead so CSE can see it.
6498 * config/sparc/sparc.md (movhi_const64_special,
6499 movsi_const64_special): New patterns necessitated by that change.
6500 (movhi_high): Remove.
6501 (movhi_lo_sum): Change to match an IOR.
6502 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
6503 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
6504 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
6505 (movdf splits): Allow when not V9 or when not ARCH64 and integer
6506 registers are involved.
6507 (snesi_zero_extend split): Remove reload_completed test.
6508 (unnamed plus and minus zero_extend sidi splits): Add it.
6510 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
6512 * extend.texi: Remove description of extension to explicit
6513 instantiation that is now endorsed by standard C++.
6515 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6517 * config/arc/arc.c (arc_initialize_pic): Remove.
6518 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
6519 nothing on any platform and is invoked by no-one, it does not even
6520 appear in the documentation.
6521 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
6522 * config/sparc/sparc.c (initialize_pic): Likewise.
6523 (find_addr_reg): Remove this as well, no longer referenced after
6526 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
6528 * recog.c (validate_replace_rtx_group): New function.
6529 * recog.h (validate_replace_rtx_group): Declare it.
6530 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
6531 the entire group of substitutions.
6533 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
6535 * loop.c (load_mems): Fix initializers.
6537 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6539 * config/sparc/sparc.md (TFmode splits): Handle destination
6540 registers being referenced in the address correctly.
6542 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
6543 TREE_UNSIGNED, when bitsize of type's mode is larger than
6544 HOST_BITS_PER_WIDE_INT.
6546 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
6548 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
6549 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
6550 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
6552 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
6555 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
6557 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
6558 * h8300.h (TINY_DATA_NAME_P): Likewise.
6559 (STRIP_NAME_ENCODING): Handle '&'.
6561 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
6562 register (it could be accessed via an outer SUBREG).
6563 (REG_OK_FOR_BASE_P): Likewwise.
6564 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
6566 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
6569 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
6571 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6573 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
6574 must be offsettable so the splits can be made.
6576 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
6578 * config/i386/winnt.c: Include system.h, not stdio.h to get
6579 sys/param.h pulled in before rtl.h in case the system defines MIN
6582 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
6584 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
6586 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
6588 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
6590 * cpplib.c (cpp_define): Handle macros with parameters.
6592 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
6594 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
6595 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
6596 and DImode 64-bit. Use llong for minimal-toc SFmode and
6597 SYMBOL_REF / LABEL_REF 64-bit.
6598 (output_function_profiler): Use llong for profiler label and ld to
6599 load 64-bit label address.
6601 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
6603 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
6606 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
6608 * version.c: Bump for snapshot.
6610 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
6612 * version.c: Bump for snapshot.
6614 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
6616 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
6618 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
6620 * tm.texi (Misc): Fix typo "teh".
6622 * tm.texi (PIC): Fix typo "PPIC".
6624 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
6625 effect when -O2 and higher.
6626 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
6628 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
6630 * regclass.c: Changed register set documentation to be consistent
6633 * final.c (final_start_function) Removed redundant test for
6636 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
6638 * rtl.h (rtx_function): New type.
6639 (for_each_rtx): New function.
6640 * rtlanal.c (for_each_rtx): Define it.
6642 * recog.c (change_t): New type.
6643 (change_objects, change_old_codes, change_locs, change_olds):
6645 (changes): New variable.
6646 (validate_change): Dynamically allocate room for more changes, if
6647 necessary. Uses changes array instead of change_objects, etc.
6648 (apply_change_group): Use changes array instead of
6649 change_objects, etc.
6651 * loop.c (loop_mem_info): New type.
6652 (loop_mems): New variable.
6653 (loop_mems_idx): Likewise.
6654 (looop_mems_allocated): Likewise.
6655 (scan_loop): Remove nregs parameter.
6656 (next_insn_in_loop): New function.
6657 (load_mems_and_recount_loop_regs_set): Likewise.
6658 (load_mems): Likewise.
6659 (insert_loop_mem): Likewise.
6660 (replace_loop_mem): Likewise.
6661 (replace_label): Likewise.
6662 (INSN_IN_RANGE_P): New macro.
6663 (loop_optimize): Don't pass max_reg_num() to scan_loop.
6664 (scan_loop): Remove nregs parameter, compute it after any new
6665 registers are created by load_mems. Use INSN_IN_RANGE_P and
6666 next_insn_in_loop rather than expanding them inline. Call
6667 load_mems to load memory into pseudos, if appropriate.
6668 (prescan_loop): Figure out whether or not there are jumps from the
6669 loop to targets other than the label immediately following the
6670 loop. Call insert_loop_mem to notice all the MEMs used in the
6671 loop, if it could be safe to pull MEMs into REGs for the duration
6673 (strength_reduce): Use next_insn_in_loop. Tweak comments.
6675 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
6677 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
6679 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6681 * config/sparc/sparc.c (finalize_pic): Check for the correct
6682 nonlocal_goto_receiver UNSPEC number.
6683 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
6684 making note of this dependency existing in sparc.c
6685 (negtf2_notv9 split): Give NEG SFmode.
6686 (negsf2): Fix insn output string.
6688 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
6690 * c-common.c (decl_attributes): Issue an error if the argument
6691 to alias is not a string.
6693 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
6695 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
6696 pending memory flush list.
6698 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
6700 (try_combine): Allow combining insns with REG_LIBCALL notes.
6702 * expr.c (emit_block_move): Do not call memcpy as a libcall
6703 instead build up a CALL_EXPR and call it like any other
6705 (clear_storage): Similarly for memset.
6707 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
6710 * Makefile.in (cplus-dem.o): Provide explicit rules for building
6713 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
6714 and REG_LIVE_LENGTH as successful substitutions are made.
6716 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6718 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
6719 statement after end of loop label.
6721 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6723 * config/sparc/sparc.c (ultra_types_avail): New variable.
6724 (ultra_build_types_avail): New function to record mask of insn
6725 types in ready list at this cycle.
6726 (ultrasparc_sched_reorder): Call it.
6727 (ultra_find_type): Use it to quicken the search. Also simplif
6728 dependency check, don't use rtx_equal_p because we know exactly
6729 what we are looking for.
6731 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
6733 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
6734 for architecture v4.
6736 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6738 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
6740 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
6741 movdf_const_intreg and helper splits): New patterns to move float
6742 constants into integer registers.
6743 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
6746 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
6749 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
6751 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
6753 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
6754 a BASE_REGS register is needed as an intermediate when copying
6755 a symbolic value into any register class other than BASE_REGS.
6757 * expr.c (move_by_pieces): No longer static. Remove prototype.
6758 * rtl.h (move_by_pieces): Add extern prototype.
6759 * mips.c (expand_block_move): Handle aligned straight line copy by
6760 calling move_by_pieces.
6762 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
6765 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
6767 * stmt.c (expand_end_loop): Tidy. Allow unconditional
6768 jumps out of the loop to be treated as part of the exit test.
6770 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
6771 Jeff Law <law@cygnus.com>
6773 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
6774 * cplus-dem.c: Delete.
6776 * Makefile.in (fold-const.o): depend on $(RTL_H).
6778 * fold-const.c: Include rtl.h to get the prototype for
6779 `set_identifier_local_value'.
6781 * loop.c (express_from_1): Remove unused variable `tmp'.
6782 (combine_givs): cast the first argument of bzero to char *.
6784 * toplev.c (display_help): Remove unused variable `looking_for_start'.
6786 * c-decl.c (init_decl_processing): Remove unneeded &.
6788 * alpha.h (alpha_initialize_trampoline): Provide prototype.
6790 * except.c (set_exception_lang_code, set_exception_version_code):
6791 Change parameter from `short' to `int' to avoid using a gcc
6794 * except.h (set_exception_lang_code, set_exception_version_code):
6795 Likewise for prototypes.
6797 * flow.c (count_reg_references): Remove unused variables `regno'
6800 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
6802 * prefix.c (translate_name): Cast the result of `alloca'.
6804 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
6806 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
6808 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
6810 (valid_dbcc_comparison_p): Mark mode argument as unused.
6811 (symbolic_operand): Likewise.
6812 (legitimize_pic_address): Likewise.
6813 (const_uint32_operand): Likewise.
6814 (const_sint32_operand): Likewise.
6815 * sched.c [!INSN_SCHEDULING]: Define only dummy function
6816 schedule_insns and comment out rest of file.
6818 * m68k.c (output_move_simode_const): Use subl to move a zero into an
6820 (output_move_[hq]imode): Likewise.
6822 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
6824 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
6825 * invoke.texi: Corresponding changes.
6827 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
6829 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
6831 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6833 * config/sparc/sparc.c (ultra_code_from_mask,
6834 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
6835 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
6836 ultrasparc_sched_init, ultrasparc_variable_issue,
6837 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
6838 functions to describe UltraSPARC pipeline exactly to Haifa.
6839 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
6840 as there is nothing the scheduler can do about it. Indicate that
6841 REG_DEP_OUTPUT's collide. Fixup formatting.
6842 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
6843 divide costs on Ultra for DImode.
6844 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
6846 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
6847 ieuN and add call_no_delay_slot to type list.
6848 (cti function unit): New unit for branches on UltraSPARC.
6849 (subx/addx insns): Set type to misc.
6850 (sidi zero/sign extension insns on arch64): Set type to shift.
6851 (sign_extendhidi2_insn): Set type to sload.
6853 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
6855 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
6856 (output_epilog): Use if != 0 for offset.
6857 (rs6000_fatal_bad_address): Prepare for Intl.
6858 * rs6000.h (rs6000_fatal_bad_address): Declare.
6859 * rs6000.md (movsfcc, movdfcc): Use else if.
6860 (elf_high): Use {liu|lis}.
6861 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
6862 (movsi): Use rs6000_fatal_bad_address.
6864 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
6866 * reload.c (find_equiv_reg): Reject equivalences separated
6867 by a volatile instruction.
6869 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
6871 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
6873 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
6875 * alpha.md (movsicc): Fix mode mismatch.
6877 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
6879 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
6881 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
6883 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6885 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
6886 write-only modifier from operand 1 constraint.
6888 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6890 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
6891 emitting a XOR of -1 at the end, emit a NOT instead for combine's
6893 (sparc_emit_set_const64): Likewise, also when computing trailing
6894 bits do not negate low_bits and make fast_int an int.
6896 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
6898 * loop.c (add_label_notes): Do not ignore references to labels
6899 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
6900 * gcse.c (add_label_notes): Similarly.
6902 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
6904 * m68k.md (adddi_dilshr32): One of the operands must be a register.
6905 (adddi_dishl32): Similarly.
6907 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
6909 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
6910 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
6911 * cse.c (cse_basic_block): Add parens to shut up warnings.
6913 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6915 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
6916 sparc_emit_set_const64_longway, const64_is_2insns,
6917 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
6918 in 64-bit constant formation.
6919 * config/sparc/sparc.md (snesi_zero_extend split): Generate
6920 rtl for addx not subx.
6921 (define_insn movdi_const64_special): Make available even when
6922 HOST_BITS_PER_WIDE_INT is not 64.
6923 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
6924 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
6925 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
6926 instances of operand 1 inside a QI subreg.
6927 (xordi3_sp64_dbl): Remove '%' constraint for op1.
6928 (one_cmpldi2_sp64): Fix output string.
6929 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
6931 (unnamed arch64 ashift DI): Truncate shift count if greater than
6934 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
6936 * expr.c (store_expr): Don't optimize away load-store pair
6937 when either source or destination have a side effect.
6939 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
6941 * genrecog.c (add_to_sequence): Fatal error if the modes of the
6942 operands of SET are incompatible.
6944 * alpha.md: Fix max and min patterns so modes of SET operands match.
6946 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
6948 * configure.in: Avoid [[ by using test and changequote.
6949 * configure: Rebuild.
6951 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6953 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
6955 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
6956 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
6957 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
6958 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
6959 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
6960 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
6961 Fix mismatching modes in SET operands.
6962 (conditional move patterns): Fix formatting.
6963 (unnamed subx arch64 pattern): Remove duplicate insn.
6965 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
6967 * config/sparc/sparc.c (const64_operand, const64_high_operand):
6968 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
6969 (input_operand): Fixup test for what we accept for constant
6971 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
6973 (safe_constDI): Remove.
6974 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
6975 gen_safe_XOR64): New functions.
6976 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
6977 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
6979 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
6980 available when HOST_BITS_PER_WIDE_INT is not 64.
6981 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
6982 move before movdi_insn_sp64 pattern.
6983 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
6984 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
6985 symbolic_operand as predicate for second operand.
6986 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
6987 expander): Give set VOIDmode.
6989 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
6991 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
6993 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
6995 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
6997 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
6999 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
7001 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
7003 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
7005 * install.texi: Various SCO OpenServer tweaks.
7007 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
7009 * reload1.c (eliminate_regs_in_insn): Handle another case when
7010 eliminating the frame pointer to the hard frame pointer. Add
7011 missing ep->to_rtx check to one existing case.
7013 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
7015 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
7017 * tree.h: De-conditionalize init_priority code.
7019 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
7020 * collect2.c (NM_FLAGS): Change from -p to -n.
7022 * configure.in: Turn on collect2 for mipstx39-elf.
7023 Handle use_collect2=no properly.
7025 * c-common.c: De-conditionalize init_priority code.
7026 * collect2.c (extract_init_priority, sort_ids): New fns.
7027 (main): Call sort_ids.
7028 Move sequence_number to file scope.
7030 * configure.in: Handle --enable-init-priority.
7031 * c-common.c (attrs): Add A_INIT_PRIORITY.
7032 (init_attributes, decl_attributes): Likewise.
7033 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
7034 * tree.c (get_file_function_name_long): Split out...
7035 (get_file_function_name): ...from here.
7037 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
7039 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
7042 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
7044 * toplev.c (display_help): Add braces to shut up warnings.
7045 * tree.c (simple_cst_equal): Likewise.
7047 * fold-const.c (non_lvalue): Don't deal with null pointer
7049 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
7051 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
7052 of any size to a pointer.
7054 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
7056 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
7058 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
7060 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
7061 which will be saved.
7062 * mn10300.md (prologue insn): Only save registers which need saving.
7063 (epilogue insn): Similarly.
7065 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
7068 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
7070 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
7071 VAR_DECL's in gp addressable sections.
7073 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
7075 * sparc.c: Change return <exp> to <exp>; return; in functions
7077 * sparc.md: Add empty semicolon statement after final label in
7080 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7082 * config/sparc/sparc.md (define_insn addx_extend): Rename to
7083 addx_extend_sp64, only allow when TARGET_ARCH64.
7084 (define_insn addx_extend_sp32 and split): Version that works when
7086 (define_insn subx_extend): Likewise.
7087 (define_split adddi3 and subdi3 with zero extension): Fixup and
7088 correct bugs when not TARGET_ARCH64.
7090 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
7092 * except.c (set_exception_lang_code, set_exception_version_code):
7093 Use prototype-style definition if __STDC__, to match declaration
7096 * genemit.c: Change FAIL and DONE macros not to use loops.
7098 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
7100 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
7101 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
7103 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
7105 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
7107 * README.g77: Update from Craig.
7109 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7111 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
7113 (safe_constDI sparc_emit_set_const64_quick1,
7114 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
7115 analyze_64bit_constant, const64_is_2insns,
7116 create_simple_focus_bits): Fix some bugs when compiled on real
7118 (function_arg_record_value_3, function_arg_record_value_2,
7119 function_arg_record_value): Add fully prototyped forward decls.
7120 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
7121 to cmpsi_insn and use on both 64 and 32 bit targets.
7122 (define_insn cmpsi_insn_sp64): Remove.
7123 (define_expand zero_extendsidi2): Allow for 32-bit target too.
7124 (define_insn zero_extendsidi2_insn): Rename to
7125 zero_extendsidi2_insn_sp64.
7126 (define_insn zero_extendsidi2_insn_sp32): New pattern and
7127 assosciated forced split for it.
7129 * config/sparc/sparc.c (const64_operand, const64_high_operand):
7131 * config/sparc/sparc.h: Declare them.
7132 (PREDICATE_CODES): Add them.
7133 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
7134 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
7136 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
7138 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
7139 in v9 case as the latter makes the Solaris assembler crash.
7141 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7143 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
7144 for TFmode when !v9. We require offsettable memory addresses.
7145 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
7146 DFmode register number conversions.
7147 * config/sparc/sparc.md (define_split DFmode moves): If register
7148 is a SUBREG do alter_subreg on it before using.
7149 (define_expand movtf): Fixup comment about alignment on v9.
7150 (define_split TFmode moves): Don't use gen_{high,low}part, create
7151 explicit SUBREGs instead.
7153 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
7155 * Makefile.in (mbchar.o): Depend on mbchar.c.
7157 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7158 Richard Henderson <rth@cygnus.com>
7160 Rewrite Sparc backend for better code generation and
7161 improved sparc64 support.
7162 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
7164 * config/sparc/sysv4.h: Likewise.
7165 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
7166 move_operand, v8plus_regcmp_op, emit_move_sequence,
7167 singlemove_string, doublemove_string, mem_aligned_8,
7168 output_move_double, output_move_quad, output_fp_move_double,
7169 move_quad_direction, output_fp_move_quad, output_scc_insn):
7171 (small_int_or_double): New predicate.
7172 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
7173 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
7174 old pic_{sethi,lo_sum}_si patterns.
7175 (mem_min_alignment): New generic function to replace
7176 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
7177 available and can test for arbitrary alignments. All callers
7179 (save_regs, restore_regs, build_big_number,
7180 output_function_prologue, output_cbranch, output_return,
7181 sparc_flat_save_restore, sparc_flat_output_function_prologue,
7182 sparc_flat_output_function_epilogue): Prettify
7184 (output_function_epilogue): Likewise and add code to output
7185 deferred case vectors.
7186 (output_v9branch): Likewise, add new arg INSN and use it to tack
7187 on branch prediction settings. All callers changed.
7188 (print_operand): Likewise and output %l44 for LO_SUMs when
7190 (sparc_splitdi_legitimate): New function to make sure DImode
7191 splits can be run properly when !arch64.
7192 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
7193 Reformat example code in comments.
7194 (set_extends): Remove UNSPEC/v8plus_clear_high case.
7195 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
7196 of deferred case vectors we need to output.
7197 (sparc_defer_case_vector): Record a case vector.
7198 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
7199 sparc_output_deferred_case_vectors): New functions to output them.
7200 (sparc_emit_set_const32): New function to form 32-bit constants in
7201 registers when that requires more than one instruction.
7202 (safe_constDI, sparc_emit_set_const64_quick1,
7203 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
7204 analyze_64bit_constant, const64_is_2insns,
7205 create_simple_focus_bits, sparc_emit_set_const64): New functions
7206 which do the same for 64-bit constants when arch64.
7207 (sparc_emit_set_symbolic_const64): New function to emit address
7208 loading for all code models on v9.
7209 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
7210 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
7211 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
7212 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
7213 inaccuracies in comments, add symbolic and text_segment operands
7214 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
7215 GENERAL_REGS in these cases as a temp REG is needed to load these
7216 addresses into a register properly.
7217 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
7219 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
7220 quads are guarenteed to have 16-byte alignment.
7221 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
7222 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
7223 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
7224 deferred case vector implementation.
7225 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
7226 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
7227 Generate "internal label - label" instead of "label - 1b".
7228 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
7229 (PREDICATE_CODES): Remove sparc_operand, move_operand,
7230 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
7232 (doublemove_string, output_block_move, output_fp_move_double,
7233 output_fp_move_quad, output_move_double, output_move_quad,
7234 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
7235 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
7236 (sparc_emit_set_const32, sparc_emit_set_const64,
7237 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
7238 mem_min_alignment, small_int_or_double): Add externs.
7239 * config/sparc/sparc.md: Document the many uses of UNSPEC and
7240 UNSPEC_VOLATILE in this backend.
7241 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
7242 unary to types which execute in it.
7243 (define_function_unit ieu_shift): Rename to ieu0.
7244 (define_function_unit ieu1): New, executes compare, call, and
7245 uncond_branch type insns.
7246 (define_function_units for type fdivs, fdivd, fsqrt): These
7247 execute in the fpu multiply unit not the adder on UltraSparc.
7248 (define_expand cmpdi): Disallow TARGET_V8PLUS.
7249 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
7250 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
7251 allows the arith_double_operand predicate and rHI constraint when
7253 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
7254 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
7255 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
7256 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
7257 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
7258 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
7259 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
7260 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
7261 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
7262 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
7263 sign_extendqihi2_insn, sign_extendqisi2_insn,
7264 sign_extendqidi2_insn, sign_extendhidi2_insn,
7265 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
7266 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
7267 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
7268 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
7269 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
7270 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
7271 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
7272 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
7273 smulsi3_highpart_v8plus, unnamed subreg mult,
7274 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
7275 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
7276 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
7277 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
7278 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
7279 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
7280 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
7281 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
7282 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
7283 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
7284 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
7285 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
7286 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
7287 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
7288 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
7289 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
7290 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
7291 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
7292 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
7293 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
7294 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
7295 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
7296 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
7297 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
7298 call_address_untyped_struct_value_sp32,
7299 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
7300 call_value_symbolic_sp32, call_value_address_sp64,
7301 call_value_symbolic_sp64, branch_sp32, branch_sp64,
7302 flush_register_windows, goto_handler_and_restore,
7303 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
7304 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
7305 return_addsi, return_di, return_adddi, return_sf, all call+jump
7306 peepholes, trap, unnamed trap insns): Prettify output strings.
7307 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
7308 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
7309 Likewise and force + implement splits for integer cases.
7310 (define_insn return_sf_no_fpu): Likewise and allow to match when
7311 no-fpu because of our subreg SFmode splits.
7312 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
7313 zero_extendqidi2_insn, zero_extendhidi2_insn,
7314 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
7315 input_operand for second operand.
7316 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
7317 reg_or_0_operand for operand 2 so new splits can use it.
7318 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
7319 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
7321 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
7322 CONST_DOUBLEs for operand 2.
7323 (define_insn move_label_di): Likewise and label distance
7324 optimization because it no longer works with new deferred case
7325 vector scheme. To be revisited.
7326 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
7327 and allow reg_or_0_operand and J constraint for second operand.
7328 (define_insn jump): Set branch predict taken on V9.
7329 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
7330 new deferred case vector scheme.
7331 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
7332 (define_insn negdi2_sp32): Force + implement splits.
7333 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
7334 one_cmplsi2_not_liveg0 respectively, and create expander of original
7335 names which emit special rtl for TARGET_LIVE_G0.
7336 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
7337 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
7338 gen_compare_reg, FAIL instead.
7339 (define_insn sgtu, sleu): Likewise and check gen_s*() return
7340 values when trying to reverse condition codes, if they FAIL then
7342 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
7343 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
7344 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
7345 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
7346 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
7347 set output string to # to indicate they are mandatory splits.
7348 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
7349 pic_sethi_di, move_pic_label_si): Remove.
7350 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
7351 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
7353 (define_expand movsi_pic_label_ref, define_insn
7354 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
7355 expander and insns to handle PIC label references and deferred
7357 (define_insn get_pc_via_rdpc): Comment out as it is no longer
7359 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
7360 Rewrite to not use emit_move_sequence, make use of new constant
7361 formation code, and new splits for all multi-insn cases.
7362 (define_insn movqi_insn): Remove sethi case, it can never happen.
7363 Use reg_or_zero_operand instead of const0_rtx explicit test,
7364 use input_operand instead of move_operand for source, and use
7365 general_operand now for dest.
7366 (define_insn movhi_insn): Similar but leave sethi case.
7367 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
7368 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
7369 movhi_lo_sum respectively, prettify output string.
7370 (define_insn movsi_zero_liveg0): New pattern to put zero into a
7371 register when needed on TARGET_LIVE_G0.
7372 (define_insn movsi_insn): Use general_operand and input_operand
7373 for dest and src respectively. Simplify applicability test.
7374 Prettify output strings, and add clr alternative for J
7376 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
7377 deprecated std and reg-reg DI moves): Remove and...
7378 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
7379 implementation which uses forced splits for all non-single insn
7381 (define_split DI move cases on !arch64): New splits to handle all
7382 situations of 64-bit double register DImode on 32bit, and
7383 unaligned registers and memory addresses for all subtargets.
7384 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
7386 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
7387 input_operand for dest and src respectively, prettify output
7389 (define_insn movdf_insn, movdf_no_e_insn, store_df,
7390 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
7392 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
7393 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
7394 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
7395 movtf_no_e_insn_sp64) Replace with new
7396 implementation which uses forced splits for all non-single insn
7398 (define_split DF move cases): New splits in similar vein to DI
7400 (define_insn sethi_di_medlow, sethi_di_medium_pic,
7401 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
7402 movdi_sp64_insn): Remove old v9 code model and constant loading
7404 (define_insn pic_lo_sum_di, pic_sethi_di,
7405 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
7406 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
7407 embmedany_sethi, embmedany_losum, embmedany_brsum,
7408 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
7409 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
7410 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
7411 scheme, using unspecs, secondary reloads, and one to one sparc
7412 insn to rtl insn mapping for better scheduling and code gen.
7413 (define_expand reload_indi, reload_outdi): Reload helpers for
7414 MEDANY and EMBMEDANY symbol address loading cases which require a
7416 (define_expand movsicc): Remove v8plus_regcmp cases.
7417 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
7418 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
7419 cmp_diqi_trunc_set): New patterns used by some of the new scc
7421 (define_insn xordi3_sp64_dbl): New pattern used for constant
7422 formation when crossing from 32-bit targets.
7423 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
7425 (define_insn addx, subx): Make visible and prettify.
7426 (define_insn adddi3_insn_sp32): Likewise and force split.
7427 (define_insn addx_extend, subx_extend, unnamed): New patterns for
7428 64bit scc split usage.
7429 (define_insn unnamed plusDI zero_extend, unnamed minusDI
7430 zero_extend, subdi3): Force and implement splits.
7432 * final.c (final_scan_insn): Don't output labels if target
7433 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
7436 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
7437 don't forget to walk inside SEQUENCESs too as these are what the
7438 delay slot scheduler will create.
7440 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
7442 * alpha.md (extxl+1,+2): New patterns to work around
7445 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
7447 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
7448 caused bad assembly code to be generated.
7450 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
7452 * netbsd.h: Fix typo.
7454 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
7456 * config.sub: Fix typo.
7458 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
7460 * invoke.texi (Environment Variables): Typo: Change "ascpects"
7462 (Running Protoize): Typo: Change "ther" into "other".
7464 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
7466 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
7467 * m68k/netbsd.h: Likewise.
7468 * ns32k/netbsd.h: Likewise.
7469 * sparc/netbsd.h: Likewise.
7471 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
7473 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
7474 * ginclude/va-clipper.h (va_list): Likewise.
7476 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
7478 * rs6000.c (rs6000_override_options): If big endian and -Os, use
7479 load/store multiple instructions unless user overrides.
7481 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
7483 * ns32k/netbsd.h: Fix typo.
7485 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
7487 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
7488 labels with .debugsym if no parallel insns.
7490 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
7492 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
7493 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
7495 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
7497 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
7498 (AR_FOR_TARGET): Define.
7500 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
7502 * dyn-string.h: New file.
7503 * dyn-string.c: Likewise.
7504 * Makefile.in (OBJS): Add dyn-string.o.
7505 (dwarf2out.o): Add dyn-string.h dependency.
7506 (dyn-string.o): List dependencies.
7507 * dwarf2out.c: Include dyn-string.h.
7508 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
7509 (addr_const_to_string): Take a dyn_string_t, not a char* as a
7510 prototype. Use dyn_string_append rather than strcat, throughout.
7511 (addr_to_string): Use dyn_string_t.
7513 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
7515 Function entry/exit profiling instrumentation:
7516 * expr.h (profile_function_entry_libfunc,
7517 profile_function_exit_libfunc): Declare new variables.
7518 * optabs.c: Define them here.
7519 (init_optabs): Initialize them.
7520 * tree.h (struct tree_decl): New flag
7521 no_instrument_function_entry_exit.
7522 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
7523 * c-decl.c (duplicate_decls): Merge it.
7524 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
7525 (init_attributes): Use it for "no_instrument_function".
7526 (decl_attributes): Handle it, for functions that have not yet been
7527 compiled. Set decl flag.
7528 * flags.h (flag_instrument_function_entry_exit): Declare new
7530 * toplev.c (flag_instrument_function_entry_exit): Define it here.
7531 (f_options): New option "instrument-functions".
7532 * function.h (struct function): New field instrument_entry_exit.
7533 * function.c (current_function_instrument_entry_exit): New
7535 (push_function_context_to, pop_function_context_from): Save and
7537 (expand_function_start): Set current_ variable, maybe emit return
7538 label and entry profile call.
7539 (expand_function_end): Maybe emit exit profile call.
7541 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
7543 * i386.md (movqi): When optimizing a load of (const_int 1) into a
7544 NON_QI_REG_P, pretend the register is SImode.
7546 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
7548 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
7549 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
7550 manufacturer id for ns32k.
7551 * configure: Regenerated.
7552 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
7553 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
7554 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
7555 * config/m68k/netbsd.h: Same.
7556 * config/ns32k/netbsd.h: Same.
7557 * config/sparc/netbsd.h: Same.
7559 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
7561 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
7562 or UNROLL_COMPLETELY loop that starts with a jump to its
7565 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
7567 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
7568 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
7569 (print_operand, case 'B'): Don't fall through.
7570 (print_operand, case 'S'): Correct mask begin/end computation.
7571 Use HOST_BITS_PER_WIDE_INT.
7572 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
7573 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
7574 * rs6000/aix41.h (CPP_PREDEFINES): Same.
7575 * rs6000/aix43.h (CPP_PREDEFINES): Same.
7577 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
7579 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
7580 constraint from second alternative.
7582 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
7584 * configure.in: Fix --without/--disable cases for local-prefix,
7585 gxx-include-dir and checking.
7587 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7589 * configure.in (enable_haifa): Set by default for sparc64 too.
7592 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
7594 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
7595 * i386/winnt.c (associated_type): New fn.
7596 (i386_pe_valid_type_attribute_p): New fn.
7597 (i386_pe_check_vtable_importexport): Remove.
7598 (i386_pe_dllexport_p): Use associated_type.
7599 (i386_pe_dllimport_p): Likewise.
7601 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
7602 * i386.c (i386_valid_type_attribute_p): Also accept
7603 attributes for METHOD_TYPEs.
7605 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
7607 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
7609 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
7611 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
7613 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
7614 them from generating a new base name for each occurence of
7617 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
7619 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
7621 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
7625 * cplus-dem.c (type_kind_t): New type.
7626 (demangle_template_value_parm): Add type_kind_t parameter. Rely
7627 on this paramter, rather than demangling the type again.
7628 (demangle_integral_value): Pass tk_integral.
7629 (demangle_template_: Pass the value returned from do_type.
7630 (do_type): Return a type_kind_t. Pass tk_integral to
7631 demangle_template_value_parm for array bounds.
7632 (demangle_fund_type): Likewise.
7634 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
7636 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
7639 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
7641 * pa.c (move_operand): Accept CONSTANT_P_RTX.
7643 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
7645 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
7647 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
7650 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
7652 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
7653 (DEBUGGER_ARG_OFFSET): Likewise.
7655 * mn10300.md (movsf): Remove last change. Not needed.
7657 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
7659 * c-lex.c (yylex): Fix boundary conditions in character literal and
7660 string literal loops.
7662 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
7664 * longlong.h (count_leading_zeros): Sparclite scan instruction was
7665 being invoked incorrectly.
7667 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
7668 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
7670 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
7671 * configure.in: Added i[34567]86-*-win32
7672 * config.sub: Ditto.
7673 * configure: Rebuilt.
7675 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
7677 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
7678 the frame pointer and compiling PIC code and reload has not completed.
7680 * i386.c (output_to_reg): Add code to emulate non-popping DImode
7683 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
7685 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
7687 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
7689 * Makefile.in (install-info): Only try to update the info
7690 directory file if it exists in the first place.
7692 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
7694 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
7696 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
7698 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
7699 CONST_DOUBLE source.
7701 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
7703 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
7704 strings as the insertion of USER_LABEL_PREFIX.
7705 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
7707 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
7710 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
7712 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
7713 already defined type.
7715 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
7717 * expr.c (check_max_integer_computation_mode): Allow conversions
7718 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
7719 (expand_expr): Likewise.
7721 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
7723 * expr.c (expand_expr): Expand RETURN_EXPR.
7725 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
7727 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
7729 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
7731 * dwarf2out.c (output_aranges): Call stripattributes
7732 for TEXT_SECTION references.
7733 (output_line_info): Likewise.
7735 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7737 * profile.c (branch_prob): Call allocate_reg_info after outputting
7738 profile rtl in instrument_arcs.
7740 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
7742 * fixinc.irix (math.h): Install wrapper instead of copying.
7744 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
7746 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
7747 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
7748 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
7749 lang_flag_0. Added documentation in the flag table.
7751 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
7753 * cccp.c (do_include): Fix vax c style include handling.
7755 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
7757 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
7759 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
7761 * fold-const.c (non_lvalue): Don't deal with null pointer
7763 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
7765 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
7767 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
7768 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
7769 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
7770 (u_short_cint_operand): Same.
7771 (reg_or_cint_operand): Same.
7772 (logical_operand): Same.
7773 (input_operand): Same.
7774 (reg_or_short_operand): Use u_short_cint_operand.
7776 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
7778 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
7779 but keep the insns and splits. Adjust so when the ultimate destination
7780 is memory, use cvtql.
7782 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
7784 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
7786 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
7788 * gcc.c (do_spec): Call "error" not "warning".
7790 * configure.in: Fix minor problems with gas feature detection code.
7791 * configure: Rebuilt.
7793 * gcc.c (do_spec): Issue a warning for '%[]' usage.
7796 * gcc.c: Delete %[spec] support.
7797 (do_spec_1, case '('): Likewise.
7798 (do_spec_1, case '['): Call error.
7800 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
7802 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
7803 (CPP_SUBTARGET_SPEC): Default to empty string.
7804 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
7805 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
7806 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
7807 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
7809 * alpha/linux.h (CPP_PREDEFINES): Tidy.
7810 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
7811 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
7812 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
7813 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
7814 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
7815 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
7816 * alpha/vxworks.h: Likewise.
7818 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
7820 * mips.md (reload_outsi): Added missing REGNO call.
7821 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
7823 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
7824 another match_operator and compare the codes.
7826 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
7828 * MIPS multiply pattern fixes:
7829 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
7830 Add union classes for HI, LO, or HILO plus general registers.
7831 (GENERATE_MADD): Deleted.
7832 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
7833 Add TARGET_MAD to condition.
7834 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
7835 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
7836 "*d" for accumulator, to give preference to LO initially but not
7839 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
7841 * configure.in (enable_c_mbchar): New configure option.
7842 (extra_cpp_objs): Always available now.
7844 * cexp.y (mbchar.h): #include it.
7845 (yylex): Handle Multibyte characters in character literals.
7847 * cccp.c (mbchar.h): #include it.
7848 (main): Set character set based on LANG environment variable.
7849 (rescan): Handle multibyte characters in comments.
7850 (skip_if_group): See above.
7851 (validate_else): See above.
7852 (skip_to_end_of_comment): See above.
7853 (macarg1): See above.
7854 (discard_comments): See above.
7855 (rescan): Handle multibyte characters in string and character literals.
7856 (collect_expansion): See above.
7857 (skip_quoted_string): See above.
7858 (macroexpand): See above.
7859 (macarg1): See above.
7860 (discard_comments): See above.
7861 (change_newlines): See above.
7863 * c-lex.c (mbchar.h): #include it.
7864 (GET_ENVIRONMENT): New macro.
7865 (init_lex): Set character set based on LANG environment variable.
7866 (yylex): Handle multibyte characters in character literals.
7867 (yylex): Handle multibyte characters in string literals.
7869 * Makefile.in (mbchar.o): New target.
7870 (cccp$(exeext)): @extra_cpp_objs@ is always available.
7871 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
7873 * mbchar.[ch]: New files for multibyte character handling.
7875 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
7877 * jump.c (jump_optimize): When simplifying noop moves and
7878 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
7879 the PUSHes to rewrite in second loop as we did in the first.
7881 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
7883 * cplus-dem.c (demangle_nested_args): Make function definition
7884 static to match the prototype.
7886 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
7888 * alloca.c: Respect USE_C_ALLOCA.
7889 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
7890 * gengenrtl.c (xmalloc): Likewise.
7892 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
7894 * loop.h (struct induction): Add no_const_addval.
7895 * loop.c (the_movables, reg_address_cost): New variables.
7896 (init_loop): Init reg_address_cost.
7897 (loop_optimize): Call end_alias_analysis.
7898 (scan_loop): Init the_movables.
7899 (record_giv): Init induction->no_const_addval.
7900 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
7901 [REG]: Rearrange loop search test to catch more cases.
7902 (general_induction_var): Return success not benefit; take an extra
7903 argument for that. Change all callers.
7904 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
7905 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
7906 [default]: Search the_movables for additional combinations.
7907 (sge_plus_constant, sge_plus): New functions.
7908 (express_from_1): New function.
7909 (express_from): Always define. Rewrite using express_from_1.
7910 (combine_givs_p): Handle more cases. Ignore address cost.
7911 (cmp_combine_givs_stats): New function.
7912 (combine_givs_used_once, combine_givs_benefit_from): New functions.
7913 (combine_givs): Rewrite to do best-fit combination.
7915 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
7916 (fold): Do a complete (A*C)+(B*C) association check.
7918 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
7920 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
7922 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
7924 * mn10300.c (MODES_TIEABLE_P): Fix typo.
7926 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
7928 * tree.c (valid_machine_attribute): Only create a new type variant if
7929 there is a decl to use it.
7931 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
7933 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
7936 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
7938 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
7941 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
7943 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
7944 Simplify tests for clearing an address register.
7945 (expand_prologue): Corresponding changes.
7947 * mn10300.md (movXX patterns): Make sure the destination is an
7948 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
7949 (logical patterns): Split into expanders + patterns
7950 (zero and sign extension patterns): Similarly.
7951 (shift patterns): Similarly.
7953 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
7955 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
7956 for the sequence, recording base values.
7958 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
7960 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
7962 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
7964 * gcc.c: Remove ANSI-C ism from --help code.
7966 * toplev.c: Support --help with USE_CPPLIB.
7968 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
7970 * configure.in: Rework gas feature code to work with symlink based
7973 * extend.texi: Clarify some issues related to local variables
7974 assigned to explicit registers.
7976 * mn10300.md (mulsi): Turn into expander + pattern.
7978 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
7981 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
7983 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
7985 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
7987 * version.c: Bump again to distinguish mainline tree from the
7990 See ChangeLog.0 for earlier changes.
7993 add-log-time-format: current-time-string
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