1 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3 * reload.h (struct insn_chain): Add need_operand_change element.
4 * reload1.c (new_insn_chain): Clear it.
5 (calculate_needs_all_insns): Set it; don't overload need_reload.
6 (reload_as_needed): Use it.
8 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
9 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
10 and reload_address_index_reg_class.
11 (find_reloads_address_1): Likewise.
12 * reload.h (reload_address_base_reg_class,
13 reload_address_index_reg_class): Don't declare.
14 * reload1.c (reg_old_renumber, pseudo_previous_regs,
15 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
16 (used_spill_regs): Now static.
17 (reload_address_base_reg_class, reload_address_index_reg_class,
18 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
19 basic_block_needs, max_needs, group_size, group_mode, max_groups,
20 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
23 (init_reload): Delete code to compute base/index reg classes.
24 (reload): Delete variable J.
25 Delete code to manage basic_block_needs.
26 Don't compute regs_explicitly_used.
27 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
29 Initialize bad_spill_regs_global.
30 Don't call order_regs_for_reload here.
31 Don't initialize spill_reg_order and n_spills.
32 Don't forbid explicitly used regs to be used for spill regs.
33 Change main loop to infinite loop, with explicit break statements.
34 Make SOMETHING_CHANGED variable local to that loop.
35 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
36 max_groups_insn, max_nongroups_insn, group_size, group_mode.
37 Make sure spilled_speudos is cleared before calling spill_hard_reg or
39 Don't call dump_needs.
40 Delete code to reset potential_reload_regs.
41 Delete code to terminate loop conditional on the global needs variables
42 showing no further needs.
43 (calculate_needs_all_insns): Return void. All callers changed.
44 Initialize somehing_needs_elimination here, not in reload.
45 Delete avoid_return_reg kludge.
46 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
48 Initialize the group_mode and group_size elements of the arg CHAIN.
49 Delete code to manage basic_block_needs.
50 Operate on elements of CHAIN instead of global variables.
51 Delete avoid_return_reg kludge.
52 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
54 Operate on elements of CHAIN instead of global variables.
55 Delete special SMALL_REGISTER_CLASSES code.
56 Delete spill_failure code; now in new_spill_reg.
57 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
59 Operate on elements of CHAIN instead of global variables.
60 (maybe_mark_pseudo_spilled): New static function.
61 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
63 Operate on elements of CHAIN instead of global variables.
64 Call order_regs_for_reload here, not in reload.
65 Initialize spill_reg_order and n_spills.
66 Simplify test whether an asm insn is involved.
67 Delete spill_failure code; now in new_spill_reg.
68 Call maybe_mark_pseudo_spilled for everything marked as live in
69 CHAIN. Merge CHAIN's used_spill_regs into the global variable
71 (dump_needs): Take CHAIN arg. No longer static, to prevent the
72 compiler from optimizing this function (now unused) away.
73 Operate on elements of CHAIN instead of global variables.
74 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
76 Operate on elements of CHAIN instead of global variables.
77 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
78 take CHAIN arg. All callers changed.
79 Operate on elements of CHAIN instead of global variables.
80 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
81 CHAIN, NONGROUP args. Return void. All callers changed.
82 Verify caller isn't trying to spill a pseudo.
83 Simplify test for illegal reg, just use bad_spill_regs.
84 Generate better error messages.
85 Operate on elements of CHAIN instead of global variables.
86 Mark spilled register in CHAIN's used_spill_regs element.
87 Don't call spill_hard_reg.
88 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
89 Mark spilled hard regs in bad_spill_regs_global.
90 Mark affected pseudos in spilled_pseudos, but don't spill them.
91 (ior_hard_reg_set): New static function.
92 (finish_spills): Return int. All callers changed.
93 Compute spill_reg_order, n_spills and spill_regs here. Also update
94 regs_ever_live for regs used as spills.
95 For every pseudo in spilled_pseudos, spill it and mark the previous
96 hard reg it had in pseudo_previous_regs. Compute which hard regs
97 arseudo): New static function.
98 (order_regs_for_reload): Take CHAIN arg. All callers changed.
99 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
100 hard registers explicitly used across the current insn into the set.
101 Compute hard_reg_n_uses taking only pseudos live across this insn
103 Tweak sorting of potential_reload_regs.
104 (compare_spill_regs): Delete function.
105 (reload_as_needed): Don't sort the spill_regs array, it's computed
106 in proper order in finish_spills.
107 Delete avoid_return_reg kludge.
108 Delete code to manage basic_block_needs.
109 (allocate_reload_reg): Minor speed/readability tweaks.
110 Operate on elements of CHAIN instead of global variables.
111 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
112 Delete avoid_return_reg kludge.
113 Initialize reload_reg_used from CHAIN's used_spill_regs element.
114 Delete unused label FAIL.
115 (reload_combine): Replce reload_address_index_reg_class with
117 Don't use used_spill_regs to determine information about lifetime of
120 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
122 * toplev.c (display_help): Ignore empty target specific
123 options, and if -W is also specified on the command line then
124 display undocumented options.
126 * config/arm/arm.c: Updated with changes in devo sources.
127 * config/arm/arm.h: Updated with changes in devo sources.
128 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
129 * config/arm/lib1thumb.asm: Add ELF support.
131 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
133 * collect2.c (aix64_flag): New variable.
134 (main, case 'b'): Parse it.
135 (GCC_CHECK_HDR): object magic number must match mode.
136 (scan_prog_file): Only check for shared object if valid header.
137 Print debugging if header/mode mismatch.
139 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
141 Added support for arm-elf-linux configuration, submitted by Philip
142 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
143 code developed by Catherine Moore <clm@cygnus.com>. The following
146 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
149 * configure: Regenerated.
151 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
152 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
153 definitions conditional on their not having been already defined.
155 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
156 and .type directives, and add "(PLT)" qualification to function
159 * config/arm/linux.h: Deleted. This file is now superceeded by
160 either linux-elf.h or linux-aout.h.
162 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
163 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
165 Move definitions from old linux.h file here.
167 * config/arm/elf.h: New file. Generic ARM/ELF support.
169 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
171 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
173 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
174 using the 26bit APCS.
176 * config/arm/unknown-elf.h: New file. Support for OS'es other
179 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
182 * config/arm/coff.h: Include aout.h for basic assembler macros.
183 Add support for -mstructure_size_boundary=<n> command line option.
185 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
186 command line option. Make macro definitions conditional on their
187 not having been already defined.
189 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
193 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
195 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
196 has been changed to not include a newline. Use this macro instead.
197 (output_enumeral_list, const_value_attribute, name_attribute,
198 comp_dir_attribute, prototyped_attribute, producer_attribute,
199 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
200 dwarfout_file_scope_decl, generate_new_sfname_entry,
201 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
202 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
204 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
206 * combine.c (subst): Process the inputs to a parallel asm_operands
209 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
211 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
213 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
215 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
217 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
219 * version.c: Bump for snapshot.
221 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
223 * stmt.c (expand_fixup): Set fixup->before_jump to a
224 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
226 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
228 * Makefile.in (recog.o): Depend on toplev.h.
229 (insn-emit.o): Depend on recog.h.
230 (insn-peep.o): Depend on recog.h and insn-config.h.
232 * combine.c (simplify_set): Remove unused variable `scratches'.
234 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
235 and `idx' in macro conditional controlling their use.
237 * genemit.c (main): Make the generated output file include
238 recog.h. Don't have it declare `insn_operand_constraint', since
239 we get it from recog.h.
241 * genpeep.c (main): Make the generated output file include
242 insn-config.h and recog.h.
244 * recog.c: Include toplev.h.
245 (extract_insn): Remove unused variable `p'.
247 * regclass.c (fix_register): Add missing braces around initializer
249 (allocate_reg_info): Move variable `i' into the scope where it is
250 used. Change its type to `size_t'.
252 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
254 * reload.c (push_reload): When merging reloads, make sure
255 that reload_in_reg and reload_in are from the same reload in
258 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
260 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
261 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
263 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
265 * loop.c (loop_has_tablejump): New variable.
266 (prescan_loop): Scan for it.
267 (insert_bct): Replace explicit scan with use of it.
268 * regclass.c (regclass): Restore loop variable j.
269 (record_reg_classes): Deterine op_types modifiers and initialize
270 classes[i] before matching constraints. Handle matching
273 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
275 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
278 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
280 * mips.h (EXTRA_SPECS): Add missing initializers.
282 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
284 * sparc.h (EXTRA_SPECS): Add missing initializers.
285 (sparc_defer_case_vector): Provide a prototype.
287 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
288 comparing it to the result of a pointer subtraction.
290 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
292 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
293 the argument to (unsigned char).
295 * alpha.h (EXTRA_SPECS): Add missing initializers.
296 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
299 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
301 * flow.c (life_analysis_1): Enable "rescan" code after reload.
302 (propagate_block): Delete dead code after reload.
304 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
305 back Oct 15, 1998 change.
306 * haifa-sched.c (update_flow_info): Likewise.
307 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
309 * mn10200.md (truncated shift): Accept constant inputs too.
311 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
313 * machmode.h (mode_mask_array): No longer const.
314 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
316 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
318 * frame.c: Somewhat explain `FDE'.
319 Suggested by Brendan Kehoe
321 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
323 * expr.c (pending_chain): Move up.
324 (save_expr_status): Do save pending_chain.
325 (restore_expr_status): And restore it.
326 * function.h (struct function): Add pending_chain.
328 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
330 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
331 did not match the code.
333 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
335 * regclass.c (regclass): Break out some code into new function
336 scan_one_insn, and into regclass_init.
337 (init_cost): New static variable, moved out of regclass.
338 (regclass_init): Initialize it here, not in .
339 (scan_one_insn): New static function, broken out of regclass.
340 * recog.c (apply_change_group): Break out some code into new
341 function insn_invalid_p.
342 (insn_invalid_p): New static fn, broken out of apply_change_group.
344 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
346 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
347 reg_reloaded_contents matches incremented pseudo.
349 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
351 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
353 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
354 addressing modes with side effects. These are currently
355 placeholders for the C4x target.
357 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
359 * loop.c (express_from): Make sure that when generating a PLUS of
360 a PLUS, any constant expression appears on the outermost PLUS.
362 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
364 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
365 works if "$(srcdir)" != ".".
367 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
369 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
370 existing SUBREG if we can, otherwise abort.
372 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
374 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
375 `restrict' is applied to a non-pointer variable.
377 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
379 * invoke.texi: Document -flang-isoc9x.
381 * Makefile.in (OBJS): Add splay-tree.o.
382 (c-common.o): Depend on rtl.h.
383 (splay-tree.o): List dependencies and provide build rule.
385 * rtl.h (record_alias_subset): New function.
386 * alias.c: Include splay-tree.h.
387 (alias_set_entry): New type.
388 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
389 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
390 (mems_in_disjoin_alias_sets_p): New function.
391 (alias_set_compare): Likewise.
392 (insert_subset_children): Likewise.
393 (get_alias_set_entry): Likewise.
395 * tree.h (TYPE_RESTRICT): New macro.
396 (TYPE_UNQUALIFIED): New manifest constant.
397 (TYPE_QUAL_CONST): Likewise
398 (TYPE_QUAL_VOLATILE): Likewise.
399 (TYPE_QUAL_RESTRICT): Likewise.
400 (tree_type): Add restrict_flag. Reduce count of free bits.
401 (DECL_POINTER_ALIAS_SET): New macro.
402 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
403 (tree_decl): Add pointer_alias_set.
404 (build_qualified_type): New function.
405 (build_type_variant): Define in terms of build_qualified_type.
406 * tree.c (set_type_quals): New function.
407 (make_node): Initializae DECL_POINTER_ALIAS_SET.
408 (build_type_attribute_variant): Use build_qualified_type and
410 (build_type_variant): Rename, and modify, to become...
411 (build_qualified_type): New function.
412 (build_complex_type): Use set_type_quals.
414 * c-tree.h (C_TYPE_OBJECT_P): New macro.
415 (C_TYPE_FUNCTION_P): Likewise.
416 (C_TYPE_INCOMPLETE_P): Likewise.
417 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
418 (c_apply_type_quals_to_decl): New function.
419 (c_build_qualified_type): New function.
420 (c_build_type_variant): Define in terms of c_build_qualified_type.
421 (flag_isoc9x): Declare.
422 * c-typeck.c (qualify_type): Use c_build_qualified_type.
423 (common_type): Change to use TYPE_QUALS.
424 (comptypes): Likewise.
425 (convert_for_assignment): Likewise.
426 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
427 * c-decl.c (flag_isoc9x): Define.
428 (c_decode_option): Handle -flang-isoc9x.
429 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
430 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
431 * c-lex.c (init_lex): Deal with restrict.
432 (init_lex): Don't treat restrict as a reserved word in
433 -traditional mode, or without -flang-isoc9x.
434 * c-lex.h (rid): Add RID_RESTRICT.
435 * c-parse.gperf (restrict, __restrict, __restrict__): Make
436 equivalent to RID_RESTRICT.
437 * c-parse.in (TYPE_QUAL): Update comment.
438 * c-common.c: Include rtl.h.
439 (c_find_base_decl): New function.
440 (c_build_type_variant): Rename, and modify, to become ...
441 (c_build_qualified_type): New function.
442 (c_apply_type_quals_to_decl): Likewise.
443 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
444 a particular alias set for the reference.
445 * toplev.c (documented_lang_options): Add -flang-isoc9x.
447 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
449 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
450 command line switches.
452 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
454 * reload.c (loc_mentioned_in_p): Add missing braces to bind
457 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
459 * gcc.c (option_map): Added --classpath and --CLASSPATH.
461 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
463 * regclass.c (fix_register): Add error message.
464 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
467 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
469 * c-decl.c (warn_missing_noreturn): New global variable.
470 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
471 (finish_function): Implement missing noreturn warning.
473 * c-tree.h (warn_missing_noreturn): Declare extern.
475 * invoke.texi: Document new flags.
477 * toplev.c (documented_lang_options): Add description.
479 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
481 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
482 loop optimization stable for the C4x.
483 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
484 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
485 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
487 (c4x_address_conflict): Be more paranoid when packing a volatile
488 memref in a parallel load/store.
490 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
492 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
493 repeat_block_filler): Deleted.
494 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
495 Condition code not set if destination register from 'c' class.
496 (*subbqi3_carry_clobber): Fix typo.
498 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
500 * reorg.c (steal_delay_list_from_target) Check for insns that
501 modify the condition codes and effect the direction of the jump
504 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
506 * function.c (purge_addressof_1): Replace call to
507 emit_insns_before() with emit_insn_before().
509 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
511 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
513 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
515 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
517 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
519 * gcse.c (compute_hash_table): Correctly identify hard regs which are
520 clobbered across calls.
522 * loop.c (scan_loop): Be more selective about what invariants are
525 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
527 * version.c: Bump for snapshot.
529 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
531 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
532 static eh_context structure.
534 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
536 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
538 (try_combine): Don't update max_scratch.
539 * flow.c (max_scratch, num_scratch): Delete variables.
540 (life_analysis_1): Don't initialize max_scratch.
541 (propagate_block): Don't update max_scratch.
542 (mark_set_1): Don't increment num_scratch.
543 * regs.h (max_scratch): Delete declaration.
545 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
547 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
548 is nonzero. This is temporary!
550 * sched.c (update_flow_info): Handle death notes made invalid by
551 instruction splitting. Partially reverts Oct 15, 1998 patch.
552 * haifa-sched.c (update_flow_info): Likewise.
554 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
556 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
557 if it has a nonzero DECL_INITIAL.
559 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
561 * Makefile.in (flow.o): Depend on recog.h.
563 * cpplib.h (directive_table): Add missing initializiers.
564 (finclude): Change type of variable `bsize' to size_t.
566 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
568 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
570 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
571 `int' when comparing against one.
572 (cpp_file_line_for_message): Mark parameter `pfile' with
574 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
576 * flow.c: Include recog.h.
577 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
579 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
580 `f' with ATTRIBUTE_UNUSED.
581 (reposition_prologue_and_epilogue_notes): Likewise.
583 * genopinit.c (gen_insn): Cast argument of ctype functions to
586 * haifa-sched.c: Include recog.h.
587 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
588 comparing against one.
590 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
592 * mips-tfile.c (parse_end): Cast the argument of ctype function to
594 (parse_ent): Likewise.
595 (parse_input): Likewise.
597 * optabs.c (init_libfuncs): Likewise.
599 * protoize.c (find_rightmost_formals_list): Likewise.
601 * recog.h (const_double_operand): Fix typo in prototype.
603 * tlink.c (scan_linker_output): Cast the argument of ctype
604 function to `unsigned char'.
606 * toplev.c (check_lang_option): Cast the result of `strlen' to
607 `int' when comparing against one.
609 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
611 * gcse.c (dump_cuid_table): Correct typo.
613 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
615 * toplev.c (display_help): Prepend '-m' to target specific
617 (check_lang_option): Ignore text after end of first word of a
618 language specific option.
620 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
622 * reload1.c (reg_used_by_pseudo): New static variable.
623 (choose_reload_regs): Initialize it.
624 Use it instead of testing spill_reg_order to determine whether a
625 pseudo is live in a hard register across the current insn.
626 Fix a typo in a reference to reload_reg_rtx.
628 * flow.c (propagate_block): Replace code that computes and uses
629 regs_sometimes_live with simpler code that just walks the set of
630 currently live registers.
632 * Makefile.in (insn-extract.o): Fix dependencies.
633 * genextract.c (main): Generate includes for insn-config.h and
635 Delete generation of declarations which are now in recog.h.
636 * genrecog.c (main): Delete generation of definitions which are
638 * local-alloc.c (block_alloc): Use extract_insn and the variables
639 it sets up instead of looking up values by insn_code.
640 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
641 recog_dup_num): Define here instead of generating the definition in
643 (recog_n_operands, recog_n_dups, recog_n_alternatives,
644 recog_operand_mode, recog_constraints, recog_operand_address_p):
646 (extract_insn): New function.
647 * recog.h (extract_insn): Declare function.
648 (which_alternative, recog_n_operands, recog_n_dups,
649 recog_n_alternatives, recog_operand_mode, recog_constraints,
650 recog_operand_address_p): Declare variables.
651 * regclass.c (n_occurrences): New static function.
652 * reload.c (n_occurrences): Delete function.
653 (find_reloads): Use extract_insn.
654 * reload.h (n_occurrences): Delete declaration.
656 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
658 * reload1.c (reload_as_needed): Fix test for when to call
659 update_eliminable_offsets.
661 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
663 Fix consistency problems with reg_equiv_{mem,address};
664 Improve reload inheritance;
666 * reload.c (reload_out_reg): New variable.
667 (loc_mentioned_in_p, remove_address_replacements): New functions.
668 (remove_replacements): Deleted.
669 (push_reload): Set reload_out_reg[i].
670 When merging, also set reload_{in,out}_reg[i], and remove
671 duplicate address reloads.
672 (combine_reloads): Copy reload_out_reg[i].
673 (find_reloads): Do make_memloc substitution also when
674 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
676 Include *recog_operand_loc in commutativity operand changes.
677 Generate optional output reloads.
678 Delete reference to n_memlocs. Don't set *recog_operand_loc before
679 processing operands. Call make_memloc in reg_equiv_address code.
680 Set *recog_operand_loc only after processing operands, and only
681 if replace is true. Return a value.
682 When changing address reload types for operands that didn't get
683 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
684 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
685 Don't emit USEs for pseudo SUBREGs when not replacing.
686 (find_reloads_address): Do make_memloc substitution also when
687 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
689 (find_reloads_toplev): Likewise.
690 Call make_memloc in reg_equiv_address code.
691 (debug_reload_to_stream): Add code to output reload_out_reg.
692 (make_memloc): Delete local variable i, ifdefed out code, and
693 references to memlocs and n_memlocs.
694 (memlocs, n_memlocs): Delete.
695 (push_secondary_reload): Clear reload_out_reg.
696 (find_reloads_address_1): Provide memrefloc argument to all calls
697 to find_reloads_address.
698 In AUTO_INC code, handle non-directly addressable equivalences properly.
699 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
700 (find_reloads): Add return type.
701 (remove_address_replacements, deallocate_reload_reg): Declare.
702 * reload1.c (num_not_at_initial_offset): No longer static.
703 (delete_address_reloads, delete_address_reloads_1): Likewise.
704 (deallocate_reload_reg): New function.
705 (spill_reg_stored_to): New array.
706 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
707 (eliminate_regs_in_insn): Move assignments of previous_offset and
708 max_offset fields, and recalculation of num_not_at_initial_offset
709 into new static function:
710 (update_eliminable_offsets) .
711 (reload_as_needed): Call update_eliminable_offsetss after calling
713 Call forget_old_reloads_1 with contents of reloaded auto_inc
714 expressions if the actual addressing can't be changed to match the
716 (choose_reload_regs): For inheritance, replace
717 reload_reg_free_before_p test with reload_reg_used_at_all test, and
718 remove stand-alone reload_reg_used_at_all test.
719 Use reload_out_reg to determine which reload regs have output reloads.
720 Treat reload_override_in more similar to inherited reloads.
721 Handle (subreg (reg... for inheritance.
722 For flag_expensive_optimizations, add an extra pass to remove
723 unnecessary reloads from known working inheritance.
724 Delete obsolete code for pseudos replaced with MEMs.
725 Handle inheritance from auto_inc expressions.
726 (emit_reload_insns): If reload_in is a MEM, set OLD to
728 Don't reload directly from oldequiv; if it's a pseudo with a
729 stack slot, use reload_in[j].
730 Check that reload_in_reg[j] is a MEM before replacing reload_in
731 from reg_reloaded_contents.
732 Include non-spill registers in reload inheritance processing.
733 Also try to use reload_out_reg to set spill_reg_store /
735 In code to set new_spill_reg_store, use single_set to find out if
736 there is a single set.
737 Add code that allows to delete optional output reloads.
738 Add code to allow deletion of output reloads that use no spill reg.
739 At the end, set reload_override_in to oldequiv.
740 Also call delete_output_reload if reload_out_reg is equal to old
742 Add code to call delete_output_reload for stores with no matching load.
743 Set / use spill_reg_stored_to.
744 Handle case where secondary output reload uses a temporary, but
745 actual store isn't found.
746 When looking for a store of a value not loaded in order to call
747 delete_output_reload, count_occurences should return 0 for no
748 loads; but discount inherited input reloadill_reg_stored_to.
749 Do checks for extra uses of REG. Changed all
751 Use delete_address_reloads.
752 (reload): Take return value of find_reloads into account.
753 If a no-op set needs more than one reload, delete it.
754 (reload_reg_free_before_p): RELOAD_FOR_INPUT
755 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
756 for the same operand.
757 (clear_reload_reg_in_use): Check for other reloads that keep a
759 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
760 RELOAD_FOR_OPADDR_ADDR.
761 Take into account when an address address reload is only needed
762 for the address reload we are considering.
763 (count_occurrences): Use rtx_equal_p for MEMs.
764 (inc_for_reload): Return instruction that stores into RELOADREG.
765 New argument two, IN, and rtx. Changed all callers.
766 (calculate_needs_all_insns, reload_as_needed):
767 Don't clear after_call for a CLOBBER.
768 Keep track of how many hard registers need to be copied from
769 after_call, and don't clear after_call before we have seen
770 that much copies, or we see a different instruction.
772 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
774 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
775 after reload has completed.
777 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
779 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
780 a macro name and the next token with a single blank if that whitespace
781 is in a macro buffer and the next token is not '('.
783 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
785 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
787 (skip_if_group): Ditto.
788 (skip_to_end_of_comment): Ditto.
790 (discard_comments): Ditto.
791 (change_newlines): Ditto.
793 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
795 * c-lex.c (yylex): Fix unaligned access of wchar_t.
797 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
799 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
800 (TARGET_OPTIONS): Add --help documentation.
802 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
804 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
806 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
808 * fixinc/* Moved in from ../contrib directory in preparation
809 for integrating it into the normal build process. In particular,
810 fixinc/Makefile.in must be config-ed into the build directory
811 as fixinc/Makefile. Proposed patches to ./Makefile.in and
812 ./configure.in will be "in the mail" momentarily.
814 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
816 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
817 accidently walk into the free list. Comment how that can happen.
818 (invalidate): Fix indentation.
820 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
821 Jeffrey A Law (law@cygnus.com)
823 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
824 reload. Never perform rescans of the insn chain after reload.
825 (propagate_block): Do not delete insn or create new autoinc addressing
828 * jump.c (jump_optimize): Unconditionally use the code that was
829 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
830 * reload1.c (reload): When reloading is finished, delete all
831 REG_DEAD and REG_UNUSED notes.
832 (emit_reload_insns): Delete all code that was conditional on
833 PRESERVE_DEATH_INFO_REGNO_P.
834 (no_longer_dead_regs): Delete variable.
835 (reload_cse_delete_death_notes): Delete function.
836 (reload_cse_no_longer_dead): Delete function.
837 (reload_cse_regs_1): Delete all code to handle deletion of death
839 (reload_cse_noop_set_p): Likewise.
840 (reload_cse_simplify_set): Likewise.
841 (reload_cse_simplify_operands): Likewise.
842 (reload_cse_move2add): Likewise.
843 * reorg.c (used_spill_regs): Delete declaration.
844 (max_label_num_after_reload): Delete declaration.
845 (find_dead_or_set_registers): Don't assume that spill regs are
846 dead at a CODE_LABEL.
847 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
849 * sched.c (sched_analyze_insn): Likewise.
850 (update_flow_info): Likewise.
851 * haifa-sched.c (sched_analyze_insn): Likewise.
852 (update_flow_info): Likewise.
853 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
854 * toplev.c (max_label_num_after_reload): Delete variable.
855 (rest_of_compilation): Don't set max_label_num_after_reload.
856 Call life_analysis after reload_cse_regs if optimizing.
857 * config/gmicro/gmicro.h: Delete comment referring to
858 PRESERVE_DEATH_INFO_REGNO_P.
859 * config/i386/i386.h: Likewise.
860 * config/m88k/m88k.h: Likewise.
861 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
862 * config/sh/sh.h: Likewise.
864 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
866 * loop.c (strength_reduce): Restore marking bct_p as
868 * rs6000.c (optimization_options): Change #ifdef HAIFA to
869 HAVE_decrement_and_branch_on_count.
870 (small_data_operand): Remove TARGET_ELF condition for marking
871 parameters ATTRIBUTE_UNUSED.
873 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
875 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
876 (SELECT_SECTION): Resync with svr4.h.
878 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
880 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
883 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
885 * c-pragma.c (handle_pragma_token): Test for null tree before
886 dereferencing TREE_CODE.
888 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
890 * config/c4x/c4x.c: Convert to use GEN_INT.
891 (c4x_parallel_process): Rework to handle new repeat loop structure.
893 * config/c4x/c4x.md: Convert to use GEN_INT.
894 (rptb_end): Convert to use GE test. Replace uses with clobbers.
895 (decrement_and_branch_on_count): Likewise.
897 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
898 loop.c has the desired functionality.
899 (rc_reg_operand): New prototype.
901 * config/c4x/t-c4x: Can now build all front ends.
903 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
905 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
907 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
909 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
910 * config/t-rtems: Do not install assert.h -- use newlib's.
912 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
914 * combine.c (combine_instructions): When finished, call init_recog.
915 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
917 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
919 * toplev.c: If flag_syntax_only, don't open or write assembler file.
921 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
923 * cppalloc.c (memory_full): Mark function prototype with
926 * demangle.h (collect_exit): Likewise.
928 * fix-header.c (v_fatal, fatal): Likewise.
930 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
933 * gcov.c (print_usage): Likewise.
935 * genattr.c (fatal, fancy_abort): Likewise.
937 * genattrtab.c (fatal, fancy_abort): Likewise.
939 * gencodes.c (fatal, fancy_abort): Likewise.
941 * genconfig.c (fatal, fancy_abort): Likewise.
943 * genemit.c (fatal, fancy_abort): Likewise.
945 * genextract.c (fatal, fancy_abort): Likewise.
947 * genflags.c (fatal, fancy_abort): Likewise.
949 * genopinit.c (fatal, fancy_abort): Likewise.
951 * genoutput.c (fatal, fancy_abort): Likewise.
953 * genpeep.c (fatal, fancy_abort): Likewise.
955 * genrecog.c (fatal, fancy_abort): Likewise.
957 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
958 __sjpopnthrow, __throw): Likewise.
960 * objc/objc-act.c (objc_fatal): Likewise.
962 * protoize.c (usage, aux_info_corrupted,
963 declare_source_confusing): Likewise.
965 * rtl.c (dump_and_abort): Likewise.
967 * rtl.h (sets_cc0_p): Likewise.
969 * toplev.c (float_signal, pipe_closed): Likewise.
971 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
973 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
974 when generating the decision tree for the general case.
976 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
977 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
979 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
981 * Makefile.in (sched.o): Depend on recog.h.
983 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
984 (unsigned) when comparing against one.
985 (find_base_value): Likewise.
986 (record_base_value): Cast variable `regno' to (unsigned) when
987 comparing against one. Cast the result of REGNO() macro to
988 (unsigned) when comparing against one.
989 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
991 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
992 variable where an unsigned index is needed.
994 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
995 before comparing against one.
997 * collect2.c: Add prototypes for functions `error', `fatal' and
998 `fatal_perror'. Make these functions take variable arguments
999 instead of faking it with a fixed number of args.
1000 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
1003 * combine.c (can_combine_p): Mark parameter `pred' with
1005 (find_split_point): Cast variable `src' to (unsigned
1006 HOST_WIDE_INT) when comparing against one.
1007 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
1008 (simplify_logical): Likewise.
1009 (force_to_mode): Cast result of INTVAL() macro to (unsigned
1010 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
1011 HOST_WIDE_INT) in shift.
1012 (simplify_and_const_int): Cast result of INTVAL() macro to
1013 `unsigned HOST_WIDE_INT' when comparing against one.
1014 (merge_outer_ops): Cast variable const0 to `unsigned
1015 HOST_WIDE_INT' when comparing against the result of
1016 GET_MODE_MASK() macro.
1017 (simplify_comparison): Likewise for variable `c0'. Cast variable
1018 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
1019 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
1020 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
1021 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
1022 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
1023 comparing against one.
1024 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
1026 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
1027 macro to `unsigned HOST_WIDE_INT' when comparing against one.
1028 (output_block_move): Cast `sizeof' expression to (int) when
1029 comparing against one.
1030 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
1032 (save_restore_insns): Cast `base_offset' to `long' to match format
1033 specifier in fprintf.
1035 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
1036 to `enum machine_mode'.
1038 * flow.c (life_analysis_1): Remove unused variable `insn'.
1040 * gcc.c (translate_options): Move variables `j' and `k' into the
1041 scope in which they are used. Change their types to `size_t'.
1042 (set_spec): Cast the argument of ctype macro to `unsigned char'.
1043 (read_specs): Likewise.
1044 (process_command): Cast `sizeof' to (int) when comparing against one.
1045 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
1046 (handle_braces): Cast both sides of `==' expression to `long' to
1047 ensure sign matching.
1048 (main): Cast variable `i' to `int' when comparing against one.
1050 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
1051 int to size_t. Cast variable `i' to size_t when comparing against
1054 * genattrtab.c (convert_set_attr_alternative): Remove unused
1055 parameter `insn_code'. All callers changed.
1056 (convert_set_attr): Likewise.
1058 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
1059 size_t when comparing against one. Likewise for variable `len'.
1061 * global.c (global_alloc): Cast variable `max_regno' to size_t
1062 when comparing against one. Likewise for variable `max_allocno'.
1064 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
1066 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
1067 `set' with ATTRIBUTE_UNUSED.
1068 (find_free_reg): Cast `sizeof' expression to (int) when comparing
1071 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
1072 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
1073 (get_condition): Cast variable `const_val' to `unsigned
1074 HOST_WIDE_INT' when comparing against one. Cast unsigned
1075 expression to HOST_WIDE_INT when comparing against one.
1076 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
1077 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
1078 `unsigned' when comparing against one.
1080 * protoize.c (is_id_char): Change type of parameter `ch' to
1082 (munge_compile_params): Cast argument of ctype macro to (const
1084 (process_aux_info_file): Cast variable `aux_info_size' to int when
1085 comparing against one.
1086 (forward_to_next_token_char): Cast argument of ctype macro to
1087 `const unsigned char'.
1088 (edit_formals_lists): Likewise.
1089 (find_rightmost_formals_list): Likewise.
1090 (add_local_decl): Likewise.
1091 (add_global_decls): Likewise.
1092 (edit_fn_definition): Likewise.
1093 (do_cleaning): Likewise.
1094 (scan_for_missed_items): Likewise.
1095 (edit_file): Cast variable `orig_size' to (int) when comparing
1097 (main): Cast argument of ctype macro to `const unsigned char'.
1099 * recog.c (const_int_operand): Mark parameter `mode' with
1102 * regclass.c (record_reg_classes): Change type of variable `c' to
1103 `unsigned char'. Cast `char' array index to `unsigned char'.
1105 * reload.c (push_secondary_reload): Cast argument to
1106 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
1108 * reload1.c (calculate_needs): Cast `char' array index to
1110 (set_label_offsets): Change type of variable `i' to unsigned int.
1111 Cast result of XVECLEN() macro to unsigned when comparing against
1113 (mark_not_eliminable): Change type of variable `i' to unsigned.
1114 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
1115 when comparing against one.
1116 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
1117 comparing against one.
1118 (choose_reload_regs): Hide unused label `fail'.
1119 (reload_cse_simplify_operands): Cast `char' array index to
1121 (reload_combine_note_store): Mark parameter `set' with
1122 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
1124 (reload_cse_move2add): Remove unused variable `src2'.
1126 * sched.c: Include recog.h.
1127 (sched_note_set): Remove unused parameter `b'. All callers
1129 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
1130 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
1131 when comparing against one.
1133 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
1134 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
1135 comparing against one.
1137 * unroll.c (precondition_loop_p): Remove unused parameter
1138 `loop_end'. All callers changed.
1140 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1142 * reload1.c (maybe_fix_stack_asms): New static function.
1145 * reload.h (compute_use_by_pseudos): Declare.
1147 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
1148 (something_needs_reloads): Delete variable.
1149 (finish_spills): New function.
1150 (compute_use_by_pseudos): New function.
1152 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
1153 Use the reload_insn_chain instead of walking the rtl directly.
1155 (reload): Allocate and free spilled_pseudos.
1156 Ensure that all calls of spill_hard_reg are followed by a call to
1158 Use the insns_need_reload list instead of something_needs_reloads
1159 to find out if reload_as_needed must be called.
1160 Clear unused_insn_chains at the end.
1162 (calculate_needs_all_insns): Lose FIRST parameter. All callers
1164 Delete code to keep track of current basic block.
1165 Walk reload_insn_chain instead of the rtl structure. Build the
1166 insns_need_reload chain.
1167 Remember which insns need reloading/elimination by setting the
1168 appropriate fields in struct insn_chain, not by putting modes on the
1171 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
1172 arg INSN. All callers changed.
1173 Delete declaration of struct needs.
1174 Don't set something_needs_reloads.
1175 Record insn needs in the CHAIN argument.
1177 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
1179 (reload_as_needed): Lose FIRST arg. All callers changed.
1180 Walk the reload_insn_chain instead of the rtx structure.
1181 Delete code to keep track of current basic block.
1182 Rename one of the NEXT variables to OLD_NEXT.
1184 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
1186 (choose_reload_regs): Likewise.
1188 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
1191 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
1192 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
1193 (hard_regs_live, hard_regs_need_restore): Delete variables.
1194 (n_regs_saved): Now static.
1195 (referenced_regs, this_insn_sets): New variables.
1197 (setup_save_areas): Restructure the code a bit.
1199 (restore_referenced_regs): Delete function.
1200 (mark_referenced_regs): New function, similar to the old
1201 restore_referenced_regs, but mark registers in referenced_regs.
1203 (clear_reg_live): Delete function.
1204 (mark_set_regs): Renamed from set_reg_live. All callers changed.
1205 Only mark registers in this_insn_sets.
1207 (save_call_clobbered_regs): Rework this function to walk the
1208 reload_insn_chain instead of using the list of instructions directly.
1209 Delete code to keep track of register lives, compute live regs on the
1210 fly from information in the chain.
1211 Instead of calling restore_referenced_regs, use mark_referenced_regs,
1212 then walk the set it computes and call insert_restore as appropriate.
1214 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
1216 Restructure the code a bit. Test hard_regs_saved instead of
1217 hard_regs_need_restore.
1218 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
1219 args. All callers changed.
1220 Restructure the code a bit. Use TO_SAVE to determine which regs to
1221 save instead of more complicated test.
1222 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
1224 Create a new insn_chain structure for the new insn and place it
1227 * rtl.texi: Update documentation to reflect that reload no longer
1228 puts modes on the insns.
1230 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1232 * function.c (purge_addressof_1): Force the first argument of a
1233 CALL insn to memory.
1235 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
1237 * rtl.h: Delete duplicate prototypes. Add some missing
1239 * rtlanal.c: (for_each_rtx): Formatting tweak.
1241 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1243 * real.c (emdnorm and etoasc): Disable round to even for c4x target
1244 to be compatible with TI compiler.
1246 * Makefile.in (USER_H): Add va-c4x.h to definition.
1248 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
1250 * function.c (purge_addressof_1): Fix typo in inequality: do
1251 bitfield optimization for equal mode sizes.
1252 * expmed.c (store_bit_field): Don't take subregs of subregs in
1253 the movstrict case. Tidy a potential problem in the multi-word case.
1254 (extract_bit_field): Likewise.
1256 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1258 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
1260 Compute max_uid_for_flow by calling get_max_uid after the scan.
1261 (find_basic_blocks_1): Don't emit NOPs here.
1263 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
1265 * alias.c (base_alias_check): Accept new args for the modes of the
1266 two references. Use them to determine if an AND can overlap. Update
1268 (memrefs_conflict_p): Assume sizes are aligned, and uses them
1269 to determine if an AND can overlap.
1271 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
1273 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
1274 check. Add comment to document problems with TARGET_SUN_FPA version
1276 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
1278 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1280 * Makefile.in (gencheck.o): Depend on gansidecl.h.
1282 * c-common.c (print_char_table): Add missing initializers.
1283 (scan_char_table): Likewise.
1284 (time_char_table): Likewise.
1286 * c-decl.c (c_decode_option): Mark parameter `argc' with
1288 (declare_parm_level): Mark parameter `definition_flag' with
1291 * c-lex.c (readescape): Use `(unsigned)1' in shift.
1292 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
1295 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
1297 (emit_call_1): Mark parameters `fndecl' and `funtype' with
1299 (expand_call): Cast result of MIN() to (unsigned int) when
1300 comparing against an unsigned value.
1302 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
1304 (make_definition): Remove unused parameter `op'. All callers
1306 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
1307 comparing against the result of pointer arithmetic.
1309 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
1310 when comparing against one.
1312 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
1313 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
1315 (output_die): Move variable `i' into the scope in which it is
1316 used. Change its type to `unsigned'.
1317 (output_die): Cast the result of `strlen' to (int) when passing it
1318 to ASM_OUTPUT_ASCII().
1319 (output_pubnames): Likewise.
1320 (output_line_info): Likewise.
1322 * emit-rtl.c (global_rtl): Add missing initializers.
1324 * explow.c (promote_mode): Mark parameter `for_call' with
1327 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
1328 `unsigned HOST_WIDE_INT' when comparing against one.
1329 (synth_mult): Change type of variable `cost' to int.
1330 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
1332 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
1333 when comparing against one.
1334 (get_inner_reference): Change variable `alignment' to unsigned.
1335 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
1336 int) when comparing against one.
1337 (expand_builtin_setjmp): Change type of variable `i' to size_t.
1339 * fold-const.c (div_and_round_double): Cast BASE to
1340 (HOST_WIDE_INT) when comparing against one.
1342 * gencheck.c: Include gansidecl.h.
1343 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
1345 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
1346 `tcode' with ATTRIBUTE_UNUSED.
1348 * real.c (edivm): Cast constant value to (unsigned long) in
1349 expression compared against an unsigned value.
1351 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
1352 comparing against one.
1353 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
1354 when comparing against one.
1356 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
1357 (unsigned int) when comparing against one. Likewise for
1359 (smallest_mode_for_size): Likewise.
1360 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
1361 (restore_storage_status): Likewise.
1363 * toplev.c (debug_args): Add missing initializer.
1364 (f_options): Spelling correction. Add missing initializers.
1365 (documented_lang_options): Likewise.
1366 (debug_end_source_file): Mark parameter `lineno' with
1369 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
1370 `decl' and `type' with ATTRIBUTE_UNUSED.
1372 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
1373 when comparing against one.
1374 (assemble_variable): Mark parameter `top_level' with
1376 (assemble_external_libcall): Mark parameter `fun' with
1378 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
1381 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
1383 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
1384 Replace use of r5 with use of r19.
1386 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
1388 * config/v850/v850.c (compute_register_save_size): Allow for the
1389 fact that helper functions save all registers, not just those used
1392 Replace constant 31 with macro LINK_POINTER_REGNUM.
1394 * config/v850/v850.md: Use 'indirect_operand' rather than
1395 'memory_operand' for bit test/set/clear patterns.
1397 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
1399 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
1400 * varasm.c (assemble_start_function et al): Don't call
1401 ASM_GLOBALIZE_LABEL for weak symbols.
1403 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
1405 * cse.c (equiv_constant): Check for NULL return from
1406 gen_lowpart_if_possible().
1408 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
1410 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
1412 * collect2.c (main): Pass -EL/-EB through to the compiler.
1414 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1416 * expr.c (push_block): Handle targets where the stack grows
1417 to higher addresses, but args grow to lower addresses and
1418 ACCUMULATE_OUTGOING_ARGS is not defined.
1420 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
1422 * config/v850/v850.c (print_operand): Extend meaning
1423 of 'c' operands to support .vtinherit.
1425 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1427 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
1428 Added ATTRIBUTE_UNUSED to unused function arguments.
1429 (rc_reg_operand): New predicate.
1430 (c4x_rptb_insert): New function.
1431 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
1432 (c4x_optimization_options): New function.
1434 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
1435 (decrement_and_branch_on_count): New pattern.
1436 (rptb_top): Modified pattern to work with BCT optimization.
1438 * config/c4x/c4x.h (RC_REG): New register class.
1439 (rc_reg_operand): Define prototype.
1440 (IS_RC_REG): New macro.
1441 (IS_RC_OR_PSEUDO_REG): New macro.
1442 (IS_RC_OR_PSEUDO_REGNO): New macro.
1443 (OPTIMIZATION_OPTIONS): Define.
1445 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
1447 * collect2.c (extract_init_priority): No priority is 65535.
1449 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1451 * Makefile.in (build_tooldir): new variable, same as old
1452 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
1453 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
1454 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
1456 * configure.in (gxx_include_dir): set default based on unlibsubdir
1457 * Makefile.in (tooldir): ditto
1458 (cccp.o, cpplib.o): use unlibsubdir implicitly through
1459 gxx_include_dir, includedir and tooldir
1460 (protoize.o, unprotoize.o): ditto
1462 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
1464 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
1466 * config/arm/thumb.c (thumb_override_options): Add warning about
1467 PIC code not being supported just yet.
1469 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
1471 * flow.c: Update comment.
1472 (notice_stack_pointer_modification): New static function.
1473 (record_volatile_insns): Use it.
1474 (mark_regs_live_at_end): Mark the stack pointer as alive
1475 at the end of the function if current_function_sp_is_unchanging
1477 (life_analysis_1): Set current_function_sp_is_unchanging.
1478 * function.c: Define it.
1479 (init_function_start): Initialize it.
1480 * output.h: Declare it.
1481 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
1482 the stack pointer as alive at the end of the function if
1483 current_function_sp_is_unchanging is set.
1484 * i386.c (ix86_epilogue): Optimize the restoring
1485 of the stack pointer.
1487 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
1489 * version.c: Bump for snapshot.
1491 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
1493 * c-pragma.c (handle_pragma_token): If passed a token instead
1494 of a tree, use that as the pack value.
1496 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
1498 * flow.c (find_basic_blocks_1): Fix prototype.
1500 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
1502 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
1503 (struct tree_decl): New fields no_check_memory_usage.
1504 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
1505 (init_attributes): Register it as a new attribute.
1506 (decl_attributes): Set flags on functions given that attribute.
1507 * c-decl.c (duplicate_decls): Merge new attribute.
1508 * expr.h (current_function_check_memory_usage): Declare new var.
1509 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
1510 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
1511 current_function_check_memory_usage.
1512 * function.h: Add field to struct function.
1513 * function.c (current_function_check_memory_usage): Define it.
1514 (push_function_context_to, pop_function_context_from): Save and
1516 (expand_function_start): Set it, based on global flag and function
1519 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
1520 check non-automatic variables, to permit detection of writes to
1521 read-only locations in embedded systems without memory management.
1522 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
1523 when emitting chkr_set_right_libfunc call, even if the argument is
1524 BLKmode or variable-sized; don't abort.
1526 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
1527 symbols in Pmode, not VOIDmode.
1529 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1531 * cppexp.c: When forcing unsigned comparisons, cast both sides
1534 * cpphash.h: Move static declaration of hashtab[]...
1535 * cpphash.c: ...here.
1537 * cpplib.c: Cast difference of two pointers to size_t before
1538 comparing it to size_t. Cast signed to unsigned
1539 before comparing to size_t. (FIXME: struct argdata should use
1540 unsigned buffer sizes.)
1541 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
1542 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
1543 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
1544 size_t before comparison.
1546 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
1548 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
1549 (find_basic_blocks_1): Similarly.
1550 * output.h (find_basic_blocks): Fix prototype.
1551 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
1552 find_basic_blocks anymore.
1554 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
1556 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
1557 (sbitmap_free, sbitmap_vector_free): New macros.
1558 * output.h (rtl_dump_file): Declare.
1560 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
1562 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
1564 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1566 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
1568 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
1569 (divide): Remove unused variable `tmp'.
1570 (si_to_float): Cast numeric constant to (SItype) before comparing
1573 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
1575 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
1576 * gcc.c (add_preprocessor_option): Correct typo when allocating
1577 memory, sizeof() argument had one too many `*'.
1578 (add_assembler_option): Likewise.
1579 (add_linker_option): Likewise.
1580 * gcov.c (output_data): Likewise.
1581 * local-alloc.c (memref_used_between_p): Likewise.
1582 (update_equiv_regs): Likewise.
1583 * loop.c (strength_reduce): Likewise.
1584 * reg-stack.c (record_asm_reg_life): Likewise.
1585 (subst_asm_stack_reg): Likewise.
1586 * reorg.c (dbr_schedule): Likewise.
1588 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1590 * flow.c (life_analysis_1): Break out some functions.
1591 (find_basic_blocks_1): Likewise. Also move some variables out and
1593 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
1594 new static var nonlocal_label_list with it.
1595 (active_eh_region, nested_eh_region, label_value_list,
1596 nonlocal_label_list): New static variables.
1597 (make_edges, delete_unreachable_blocks, delete_block): New static
1598 functions, broken out of find_basic_blocks_1.
1599 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
1600 noop_move_p): New static functions, broken out of life_analysis_1.
1602 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
1604 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
1605 Take extra care for op0 now possibly being a subreg.
1606 (extract_bit_field): Likewise.
1607 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
1608 the reg to memory if there is no equal sized integral mode.
1609 * stor-layout.c (int_mode_for_mode): New function.
1610 * machmode.h: Prototype it.
1612 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
1614 * global.c (build_insn_chain): Verify no real insns exist past the
1615 end of the last basic block, then exit the loop.
1617 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
1619 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
1621 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
1623 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
1625 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
1627 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
1629 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
1631 * flow.c (find_basic_blocks): Correctly determine when a call
1632 is within an exception region.
1634 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
1636 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
1638 * cpplib.h: Protect from multiple inclusions.
1639 * cpplib.c: Fix minor formatting problems.
1641 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
1643 * jump.c (jump_optimize): Revert accidental patch.
1645 * Makefile.in (cpplib.o): Use unlibsubdir.
1647 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
1649 * loop.c (get_condition): Allow combine when either compare is
1652 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
1654 * version.c: Bump for snapshot.
1656 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
1658 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
1659 (init_lex): Initialize ridpointers[RID_BYREF].
1660 * c-lex.h (enum rid): Add RID_BYREF.
1661 * c-parse.gperf: Add RID_BYREF as a type qualifier.
1662 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
1663 (encode_type_qualifiers): Similarly
1664 * c-gperf.h: Rebuilt.
1666 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
1668 * c-common.c (type_for_mode): Only return TItype nodes when
1669 HOST_BITS_PER_WIDE_INT is >= 64 bits.
1670 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
1671 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
1672 (init_decl_processing): Only create TItype nodes when
1673 HOST_BITS_PER_WIDE_INT is >= 64 bits.
1674 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
1675 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
1677 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1679 * stmt.c (n_occurrences): New static function.
1680 (expand_asm_operands): Verify that all constrains match in the
1681 number of alternatives.
1682 Verify that '+' or '=' are at the beginning of an output constraint.
1683 Don't allow '&' for input operands.
1684 Verify that '%' isn't written for the last operand.
1685 * reload.c (find_reloads): Abort if an asm is found with invalid
1686 constraints; all possible problems ought to be checked for earlier.
1688 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1690 * flags.h (flag_branch_on_count_reg): Always declare
1691 * toplev.c (flag_branch_on_count_reg): Likewise.
1692 * toplev.c: Fix typos.
1694 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
1697 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
1699 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
1701 (find_basic_blocks_1): Add a nop to the end of a basic block when
1702 a trailing call insn does not have abnormal control flow.
1703 * gcse.c (pre_transpout): New variable.
1704 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
1705 (compute_pre_transpout): Calculate it.
1706 (compute_pre_ppinout): Use it to eliminate impossible placements
1707 due to abnormal control flow through calls.
1708 (compute_pre_data): Call compute_pre_transpout.
1710 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1712 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
1714 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
1716 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
1717 and matching define_insns): Tack on a `use' of the table label, so
1718 flow analysis will recognize a tablejump.
1720 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
1722 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
1723 always end basic blocks for abnormal edge reasons.
1725 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
1727 * config/i386/i386.h: Remove definition of
1728 HANDLE_PRAGMA_PACK_PUSH_POP.
1730 * config/i386/go32.h: Add definition of
1731 HANDLE_PRAGMA_PACK_PUSH_POP.
1733 * config/i386/win32.h: Add definition of
1734 HANDLE_PRAGMA_PACK_PUSH_POP.
1736 * config/i386/cygwin32.h: Add definition of
1737 HANDLE_PRAGMA_PACK_PUSH_POP.
1739 * c-pragma.c (insert_pack_attributes): Do not insert
1740 attributes unless #pragma pack(push,<n>) is in effect.
1742 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
1744 * expr.c (emit_group_store): Handle a PARALLEL destination.
1746 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
1748 * gcse.c (pre_insert_insn): When a call ends a bb, insert
1749 the new insns before the argument regs are loaded.
1751 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1753 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
1754 (c-parse.gperf): Update comments describing invocation flags.
1755 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
1757 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
1759 * reload1.c (reload): Call free before clobbering the memory
1760 locations or constants pointers.
1762 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1764 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
1765 for efficiency by checking whether we need to modify the current
1766 stack permission at all.
1767 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
1768 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
1769 __enable_execute_stack libcall here too if
1770 TRANSFER_FROM_TRAMPOLINE is defined.
1771 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
1774 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
1776 * Makefile.in (DRIVER_DEFINES): Remove last change.
1778 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1780 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
1781 insns we're going to copy.
1782 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
1784 * loop.c (count_one_set): Add prototype.
1786 * caller-save.c (restore_referenced_regs): Lose mode argument.
1787 (insert_save): Lose mode argument.
1788 (insert_restore): Lose mode argument.
1789 (insert_one_insn): Lose mode argument.
1790 (save_call_clobbered_regs): Lose mode argument.
1791 (setup_save_areas): Take no argument and return void. All callers
1793 Don't verify validity of memory addresses.
1794 * reload.h (setup_save_ares): Adjust prototype.
1795 (save_call_clobbered_regs): Likewise.
1796 * reload1.c (delete_caller_save_insns): New function.
1797 (caller_save_spill_class): Delete variable.
1798 (caller_save_group_size): Delete variable.
1799 (reload): Call setup_save_areas and save_call_clobbered_regs
1800 in the main loop, before calling calculate_needs_all_insns.
1801 Don't call save_call_clobbered_regs after the loop.
1802 Call delete_caller_save_insns at the end of an iteration if
1804 Delete code to manage caller_save_spill_class.
1805 Emit the final note before setting reload_first_uid.
1806 Simplify test that determines whether reload_as_needed gets run.
1807 (calculate_needs): Delete code to manage caller_save_spill_class.
1809 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
1811 * collect2.c (main): Initialize ld_file_name.
1813 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
1815 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
1816 check for flag_function_sections.
1818 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1820 * cse.c (insert_regs): Fix bug in Sep 24 change.
1822 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1824 * flags.h (flag_dump_unnumbered): Declare.
1825 * toplev.c (flag_dump_unnumbered): Don't declare.
1826 * print-rtl.c (flags.h): Include.
1827 (print_rtl_single): Add return value.
1828 * rtl.h (print_rtl_single): Update declaration.
1829 * flow.c (flag_dump_unnumbered): Don't declare.
1830 (print_rtl_with_bb): Use return value of print_rtl_single.
1832 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1834 * loop.c (count_one_set): New static function, broken out of
1836 (count_loop_regs_set): Call it.
1837 * global.c (mark_reg_store): Handle clobbers here by not calling
1839 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
1840 is in fact a clobber.
1841 * integrate.c (process_reg_param): New function, broken out of
1842 expand_inline_function.
1843 (expand_inline_function): Call it.
1846 * i386.md (addsidi3_1): Delete unused variable temp.
1847 (addsidi3_2): Likewise.
1848 (clstrstrsi): Delete unused variable addr1.
1850 * rtl.h: Don't declare any functions also declared in recog.h.
1852 * Makefile.in (stupid.o): Update dependencies.
1853 (global.o): Likewise.
1855 * global.c: Include reload.h
1856 (reg_becomes_live): New function.
1857 (reg_dies): New function.
1858 (build_insn_chain): New function.
1859 (global_alloc): Call build_insn_chain before calling reload.
1861 * reload.h (struct needs): New structure definition.
1862 (struct insn_chain): Likewise.
1863 (reload_insn_chain): Declare variable.
1864 (new_insn_chain): Declare function.
1867 * reload1.c (reload_startobj): New variable.
1868 (reload_insn_chain): New variable.
1869 (unused_insn_chains): New variable.
1870 (new_insn_chain): New function.
1871 (init_reload): Initialize reload_startobj, not reload_firstobj.
1872 (reload): Initialize reload_firstobj.
1873 Before returning, free everything on the reload_obstack.
1875 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
1876 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
1877 current_chain): New variables.
1878 (reg_where_born): Delete variable.
1879 (REG_WHERE_BORN): New macro.
1880 (find_clobbered_regs): New function.
1881 (stupid_life_analysis): Don't allocate/free reg_where_born.
1882 Allocate and free reg_where_born_exact, reg_where_born_clobber,
1883 reg_where_dead_chain.
1884 Use REG_WHERE_BORN instead of reg_where_born.
1885 While processing the insns, build the reload_insn_chain with
1886 information about register lifetimes.
1887 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
1888 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
1890 Compute and information about birth and death of pseudo registers in
1891 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
1892 Delete code to set elements of reg_where_born.
1894 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
1896 * tree.def (GOTO_EXPR): Modified documentation.
1897 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
1900 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
1902 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
1903 loop_final_value, loop_comparison_code): No longer static.
1904 (unroll_loop): Delete loop_start_value update.
1905 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
1906 loop_final_value, loop_comparison_code): Extern.
1907 (loop_start_value): Delete extern.
1908 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
1909 loop_comparison_value, loop_comparison_code): Delete.
1910 (loop_optimize): Remove initialization for deleted variables.
1911 (strength_reduce): Delete analyze_loop_iterations call. Only call
1912 insert_bct if flag_branch_count_on_reg set.
1913 (analyze_loop_iterations): Delete.
1914 (insert_bct): Remove iteration count calculation. Move checks for
1915 viable BCT optimization to here. Obtain iteration count from
1916 loop_iterations and correct for unrolling. Check for enough
1917 iteration to be beneficial. Comment out runtime iteration count
1919 (insert_bct): Print iteration count in dump file. Remove
1920 loop_var_mode and use word_mode directly.
1922 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
1923 * rs6000.c (rs6000_override_options): Use it.
1924 (optimization_options): Enable use of flag_branch_on_count_reg.
1925 * rs6000.md (define_function_unit): Describe 604e.
1927 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1929 * loop.c (move_movables): Corrected threshold calculation for
1930 moved_once registers.
1932 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1934 * loop.c (combine_givs_p): Fix test for identical givs.
1936 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
1938 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
1939 call abort if the function is already defined.
1941 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
1943 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
1944 truncation is not a no-op.
1946 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
1948 * version.c: Bump for snapshot.
1950 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
1952 * version.c: Bump for snapshot.
1954 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
1956 * expmed.c (expand_divmod): Don't widen for computing remainder
1957 if we seem to have a divmod pattern for needed mode.
1959 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1961 * cpplib.c (macroexpand): Correct off-by-one error in handling
1964 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
1966 * combine.c (expand_field_assignment): Don't do bitwise operations
1967 on MODE_FLOAT; pun to MODE_INT if possible.
1969 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
1970 scott snyder <snyder@d0sgif.fnal.gov>
1972 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
1973 linker. Recognize mangled names in quotes.
1975 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
1977 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
1978 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
1979 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
1980 (lshrsi3_extend, lshrsi3_extend2): Ditto.
1982 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1984 * function.c (purge_addressof_1): If trying to take a sub-word
1985 integral piece of a floating point mode, put it on the stack.
1987 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
1989 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
1991 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
1993 * PROJECTS: Remove template friends.
1995 * collect2.c (sort_ids): Remove unused variable.
1997 * tm.texi (MATH_LIBRARY): Document.
1998 (NEED_MATH_LIBRARY): Remove.
2000 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
2001 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
2003 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
2005 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
2006 last_end to 0x7fffffff.
2008 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2010 * function.c (purge_addressof_1): Do not perform endianness
2011 corrections on bitpos, who we call will do it for us.
2013 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
2015 * h8300.c (WORD_REG_USED): Fix typo.
2016 (initial_offset): Use WORD_REG_USED.
2018 * h8300.c (handle_pragma): Fix typo.
2020 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2022 * caller-save.c (insert_save_restore): Break this function up
2023 into new functions insert_restore, insert_save and insert_one_insn.
2024 All callers changed.
2025 (insert_restore): New function, mostly broken out of
2026 insert_save_restore.
2027 (insert_save): Likewise.
2028 (insert_one_insn): Likewise.
2029 (restore_referenced_regs): New argument BLOCK. All callers changed.
2030 (save_call_clobbered_regs): Don't keep track of basic block boundaries
2031 in this function, do it in insert_one_insn instead.
2033 * reload1.c (reload): Break out some more pieces into separate
2035 (dump_needs): New function, broken out of reload.
2036 (set_initial_elim_offsets): Likewise.
2037 (init_elim_table): Likewise.
2038 (update_eliminables): Likewise.
2040 * global.c (global_alloc): Delete code to manage the scratch_list.
2041 * local-alloc.c (qty_scratch_rtx): Delete.
2042 (scratch_block): Delete.
2043 (scratch_list): Delete.
2044 (scratch_list_length): Delete.
2045 (scratch_index): Delete.
2046 (alloc_qty_for_scratch): Delete.
2047 (local-alloc): Update initialization of max_qty.
2048 Delete code to manage the scratch list.
2049 Delete code to allocate/initialize qty_scratch_rtx.
2050 (block_alloc): Don't allocate quantities for scratches.
2051 Delete code to manage the scratch list.
2052 * regs.h (scratch_list): Delete declaration.
2053 (scratch_block): Delete declaration.
2054 (scratch_list_length): Delete declaration.
2055 * reload1.c (reload): Delete code to manage the scratch list.
2056 (spill_hard_reg): Likewise.
2057 (mark_scratch_live): Delete.
2059 * recog.c (alter_subreg): Delete declaration.
2061 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2063 * Makefile.in (cccp.o): Fix typo in last patch.
2065 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2067 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
2068 * config/sh/lib1funcs.asm (___set_fpscr): Add.
2070 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
2072 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
2073 NULL_RTX as an argument.
2075 * Makefile.in (unlibsubdir): Define.
2076 (DRIVER_DEFINES): Use unlibsubdir.
2077 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
2078 (stmp-fixinc): Similarly.
2080 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2082 * regmove.c (regmove_optimize): Add variable old_max_uid.
2083 At the end of the function, update basic_block_end.
2085 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2087 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
2088 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
2091 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
2093 * config/arm/arm.c: Improve interworking support.
2095 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2097 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
2098 copied from reload_out[r] .
2100 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
2102 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
2103 with more than three size ranges.
2105 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
2107 * rtl.c (mode_name): Add a null string at the end of the array.
2108 (mode_wider_mode): Change type to unsigned char.
2109 (mode_mask_array): New variable.
2110 (init_rtl): Update for mode_wider_mode type change.
2112 * rtl.h (mode_wider_mode): Change type to unsigned char.
2113 (mode_mask_array): Declare.
2114 (GET_MODE_MASK): Use mode_mask_array.
2116 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
2118 * calls.c (expand_call) : Encapsulate code into
2119 copy_blkmode_from_reg.
2120 * expr.c (copy_blkmode_from_reg): New function.
2121 * expr.h (copy_blkmode_from_reg): New function.
2122 * integrate.c (function_cannot_inline_p): We can inline
2124 (expand_inline_function): Use copy_blkmode_from_reg
2125 if needed. Avoid creating BLKmode REGs.
2126 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
2129 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
2131 * config/v850/v850.c: Add function prototypes.
2132 Add support for v850 special data areas.
2134 * config/v850/v850.h: Add support for v850 special data areas.
2136 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
2137 HANDLE_PRAGMA_PACK_PUSH_POP.
2138 (push_alignment): New function: Cache an alignment requested
2139 by a #pragma pack(push,<n>).
2140 (pop_alignment): New function: Pop an alignment from the
2142 (insert_pack_attributes): New function: Generate __packed__
2143 and __aligned__ attributes for new decls whilst a #pragma pack
2145 (add_weak): New function: Cache a #pragma weak directive.
2146 (handle_pragma_token): Document calling conventions. Add
2147 support for #pragma pack(push,<n>) and #pragma pack (pop).
2149 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
2150 are defined enable HANDLE_PRAGMA_PACK.
2151 Move 'struct weak_syms' here (from varasm.c).
2152 Add pragma states for push and pop pragmas.
2154 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
2157 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
2158 HANDLE_GENERIC_PRAGMAS.
2160 * varasm.c: Move definition of 'struct weak_syms' into
2162 (handle_pragma_weak): Deleted.
2164 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2166 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2168 * c-decl.c (start_function): Add invocation of
2169 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
2171 * tm.texi: Remove description of non-existant macro
2172 SET_DEFAULT_SECTION_NAME.
2174 (HANDLE_SYSV_PRAGMA): Document.
2175 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
2177 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
2179 * config.sub: Recognize i[34567]86-pc-udk as new target.
2180 * configure.in: Likewise.
2181 * config/i386/t-udk: New file.
2182 * config/i386/udk.h: New file.
2184 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
2186 * reorg.c (check_annul_list_true_false): Remove unused variables.
2187 (steal_delay_list_from_target): Add missing "used_annul" variable.
2188 (try_merge_delay_insns): Close out half formed comment.
2190 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2192 * cpplib.c (macroexpand): If arg->raw_before or
2193 arg->raw_after, remove any no-reexpansion escape at the
2194 beginning of the pasted token. Correct handling of whitespace
2195 markers and no-reexpand markers at the end if arg->raw_after.
2197 * toplev.c (documented_lang_options): Recognize -include,
2198 -imacros, -iwithprefix, -iwithprefixbefore.
2199 * cpplib.c (cpp_start_read): Process -imacros and -include
2200 switches at the same time and in command-line order, after
2201 initializing the dependency-output code. Emit properly nested
2202 #line directives for them. Emit a #line for the main file
2203 before processing these switches, and don't do it again
2206 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
2208 * function.c (purge_addressof_1): Use bitfield manipulation
2209 routines to handle mem mode < reg mode.
2211 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2213 * reorg.c (try_merge_delay_insns): Account for resources referenced
2214 in each instruction in INSN's delay list before trying to eliminate
2215 useless instructions. Similarly when looking at a trial insn's delay
2218 * reorg.c (check_annul_list_true_false): New function.
2219 (steal_delay_list_from_{target,fallthrough}): Call it and also
2220 refine tests for when we may annul if already filled a slot.
2221 (fill_slots_from_thread): Likewise.
2222 (delete_from_delay_slot): Return newly-created thread.
2223 (try_merge_delay_isns): Use its new return value.
2225 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
2227 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
2228 used to compute a giv or as some other non-counting use.
2230 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2232 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2233 * local-alloc.c (find_free_reg): Use it.
2234 * global.c (find_reg): Likewise.
2235 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
2237 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
2238 * caller-save.c (init_caller_save): Use it.
2239 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
2241 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2243 * configure.in: Add --enable-cpplib option which uses cpplib
2244 for cpp, but doesn't link cpplib into cc1. Make help text
2245 capitalization consistent.
2246 * configure: Rebuilt.
2248 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
2250 * function.c (gen_mem_addressof): If the address REG is
2251 REG_USERVAR_P make the new REG be so also.
2252 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
2253 in an attempt to clarify slightly.
2255 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
2257 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
2258 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
2260 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
2262 * toplev.c: Fix last patch.
2264 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
2266 * loop.c (get_condition): Fix typo in May 9 change.
2268 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2270 * invoke.texi (-fexceptions): Merge 2 different descriptions.
2272 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2274 * toplev.c (documented_lang_options): Spelling corrections.
2276 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2278 * configure.in: new flags --with-ld and --with-as, equivalent
2279 to setting LD and AS environment variables. Test whether
2280 specified arguments are GNU commands, and report them with
2281 checking messages. Use the specified AS for configure
2284 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
2286 * gcc.c (find_a_file): when looking for `as' and `ld', return
2287 the DEFAULT program if it exists
2288 * collect2.c (main): use DEFAULT_LINKER if it exists
2290 * gcc.c (find_a_file): the test for existence of a full
2291 pathname was reversed
2293 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
2295 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
2296 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
2298 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
2300 * tree.h (TYPE_BINFO): Document.
2302 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
2304 * i386-coff.h (dbxcoff.h): Added.
2306 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
2308 * toplev.c: fix bad patch around flag_data_sections.
2310 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
2312 * reload1.c (reload): Use reload_address_index_reg_class and
2313 reload_address_base_reg_class when setting
2314 caller_save_spill_class. (Patch generated by Jim Wilson:
2317 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
2319 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
2320 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
2321 * expr.c (store_field): Add alias_set parameter. Set the
2322 MEM_ALIAS_SET accordingly, if the target is a MEM.
2323 (expand_assignment): Use it.
2324 (store_constructor_field): Pass 0.
2325 (expand_expr): Likewise.
2327 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
2329 * flags.h: Add flag_data_sections.
2330 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
2331 (compile_file): Error if flag_data_sections not supported.
2332 * varasm.c (assemble_variable): Handle flag_data_sections.
2333 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
2334 * config/mips/elf.h: Likewise.
2335 * config/mips/elf64.h: Likewise.
2336 * invoke.texi: Describe -fdata-sections.
2338 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
2340 * invoke.texi (-ffloat-store): Clarify that this option
2341 does not affect intermediate results -- only variables.
2343 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
2345 * cpp.texi: Update for Fortran usage from Craig.
2347 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2349 * rs6000.c (function_arg_boundary): Revert accidental change on
2352 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
2354 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
2355 (output_mi_thunk): Declare.
2357 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
2358 (output_function_profiler): Use r12 for temp, instead of r11 so
2359 that we preserve the static chain register.
2361 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
2363 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
2365 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2367 * sh.c (gen_shl_sext): Fix case 5.
2369 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2371 * reload1.c (reload_combine): Re-add line that got accidentally lost.
2373 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2375 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
2376 accessing variables until they are initialized via va_arg().
2378 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2380 * reload1.c (reload_combine): Initialize set before using.
2382 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
2384 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
2387 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
2389 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
2390 operand3 with mask before using it. Patch provided by Jim Wilson.
2392 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2394 * config/sparc/sparc.c (function_value): Perform the equivalent of
2395 PROMOTE_MODE for ARCH64.
2396 (eligible_for_epilogue_delay): Allow DImode operations in delay
2397 slot of a return for ARCH64.
2399 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2401 * sh.md (sqrtsf2): Fix mode of sqrt.
2403 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2405 * reload1.c (choose_reload_regs): Also try inheritance when
2406 reload_in is a stack slot of a pseudo, even if we already got a
2409 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2411 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
2412 (reload_cse_regs): New function body: call reload_cse_regs_1,
2413 reload_combine, reload_cse_move2add.
2414 When doing expensive_optimizations, call reload_cse_regs_1 a
2415 second time after reload_cse_move2add.
2416 (reload_combine, reload_combine_note_store): New functions.
2417 (reload_combine_note_use): New function.
2418 (reload_cse_move2add, move2add_note_store): New functions.
2420 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2422 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
2423 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
2425 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
2426 more than 3 such reloads.
2428 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
2429 RELOAD_FOR_X_ADDR_ADDR reload.
2431 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2433 * expr.c (store_constructor): When initializing a field that is smaller
2434 than a word, at the start of a word, try to widen it to a full word.
2436 * cse.c (cse_insn): When we are about to change a register,
2437 remove any invalid references to it.
2439 (remove_invalid_subreg_refs): New function.
2440 (mention_regs): Special treatment for SUBREGs.
2441 (insert_regs): Don't strip SUBREG for call to mention_regs.
2442 Check if reg_tick needs to be bumped up before that call.
2443 (lookup_as_function): Try to match known word_mode constants when
2444 looking for a norrower constant.
2445 (canon_hash): Special treatment for SUBREGs.
2447 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2449 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
2450 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
2451 defined, emit libcall to __enable_execute_stack. Also fix opcodes
2452 and offsets in actual stack trampoline code so they match the
2453 commentary and actually work.
2455 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2457 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
2459 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
2460 tmake_file. Set extra_parts to needed crt objects.
2461 * configure: Rebuilt.
2462 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
2463 (TARGET_DEFAULT): Set if default is v9 or ultra.
2464 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
2465 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
2466 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
2467 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
2468 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
2469 (TARGET_VERSION): Define.
2470 (MULTILIB_DEFAULT): Define.
2471 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
2472 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
2473 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
2475 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
2476 * config/sparc/sparc.c (sparc_override_options): If arch and
2477 pointer size disagree, emit diagnostic and fix it up. If
2478 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
2479 V8PLUS in 64-bit mode.
2480 * config/sparc/t-linux64: New file.
2481 * config/sparc/t-sol2-64: New file.
2482 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
2483 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
2484 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
2485 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
2486 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
2487 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
2489 (STARTFILE_SPEC): Set approriately based upon those.
2490 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
2491 disposition of DEFAULT_ARCH32_P.
2492 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
2493 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
2494 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
2495 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
2496 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
2498 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
2500 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
2502 * rtl.h (init_virtual_regs): New function.
2503 * emit-rtl.c (init_virtual_regs): Define.
2504 (insn_emit): Use it.
2505 * integrate.c (save_for_inline_copying): Likewise.
2507 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
2509 * config/arm/thumb.h: The following patches were made by Jim Wilson:
2510 (enum reg_class): Add NONARG_LO_REGS support.
2511 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
2512 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
2513 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
2514 completes. Re-enable HImode REG+OFFSET addresses.
2515 (LEGITIMIZE_RELOAD_ADDRESS): Define.
2517 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
2519 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
2521 * alpha.c (get_aligned_mem): Revert Sep 20 change.
2522 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
2523 (alpha_align_insns): Properly calculate initial offset wrt max_align.
2525 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
2527 * arm.c (find_barrier): Revert change of Apr 23. Handle table
2528 jumps as a single entity, taking into account the size of the
2531 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2533 * tree.def (SWITCH_EXPR): New tree node definition.
2535 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
2537 * version.c: Bump for snapshot.
2539 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
2541 * version.c: Bump for snapshot.
2543 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
2545 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
2548 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
2550 * Revert this patch.
2551 * reload.c (find_reloads): Do not replace a pseudo with
2552 (MEM (reg_equiv_addr)) in the initializing insn for the
2555 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
2557 * final.c (final_scan_insn): Disable tracking CC across branches.
2559 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2561 * expr.h (eh_rtime_match_libfunc): New extern declaration.
2562 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
2563 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
2564 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
2565 NULL. Only include <stdio.h> if inhibit_libc is not defined.
2567 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
2569 * toplev.c (rest_of_compilation): Skip compiling anything with
2570 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
2572 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
2574 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
2575 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
2576 use in_libcall_block.
2577 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
2578 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
2581 Mon Sep 21 14:02:23 1998
2583 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
2584 typo in no-fancy-math-387 description.
2586 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
2588 * version.c: Bump for snapshot.
2590 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
2592 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
2594 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
2596 * i386.h: (TARGET_SWITCHES) Add description fields for flags
2597 documented in install.texi.
2598 (TARGET_OPTIONS) Likewise.
2600 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
2602 * version.c: Bump for snapshot.
2604 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
2606 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
2607 * cccp.c (main): Likewise.
2609 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
2610 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
2613 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
2615 * Makefile.in (LIBS): Link in libiberty.a.
2616 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
2618 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
2620 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
2621 it to update bb boundaries. Update caller.
2622 * function.c (reposition_prologue_and_epilogue_notes): Update
2623 bb boundaries wrt the moved note.
2625 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
2627 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
2629 * configure: Regenerate.
2631 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
2633 * alpha.c (alpha_sr_alias_set): New variable.
2634 (override_options): Set it.
2635 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
2636 (mode_mask_operand): Fix signed-unsigned comparision warning.
2637 (alpha_expand_block_move): Likewise.
2638 (print_operand): Likewise.
2639 (get_aligned_mem): Use change_address.
2640 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
2641 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
2642 (alphaev4_next_nop, alphaev5_next_nop): New functions.
2643 (alpha_align_insns): Remade from old alphaev5_align_insns
2644 to handle multiple processors.
2645 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
2646 * output.h (label_to_alignment): Prototype.
2648 * tree.c (new_alias_set): New function.
2649 * tree.h (new_alias_set): Declare it.
2650 * c-common.c (c_get_alias_set): Use it.
2652 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
2654 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
2655 to an ABS expr, convert an unsigned input to signed.
2657 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
2659 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
2661 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2663 * configure.in: Add support for c4x targets.
2664 * configure: Rebuilt.
2666 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
2668 * combine.c (distribute_notes): If an insn is a cc0 user, only
2669 delete it if we can also delete the cc0 setter.
2671 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
2673 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
2674 (invert_truthvalue): Enable truthvalue inversion for
2675 floating-point operands if -ffast-math.
2677 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
2679 * configure.in: Disable collect2 for nextstep. Instead use
2681 * configure: Rebuilt.
2682 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
2683 (ENDFILE_SPEC): Define.
2684 (OBJECT_FORMAT_MACHO): Define.
2685 (EH_FRAME_SECTION_ASM_OP): Define.
2686 * crtstuff.c: Handle MACHO.
2688 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
2690 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
2692 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
2694 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
2695 (_fpadd_parts): Get sign right for 0.
2697 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2699 * ginclude/varargs.h: Add support for C4x target.
2700 * ginclude/stdargs.h: Likewise.
2702 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
2704 * alpha.c (alpha_return_addr): SET should be VOIDmode.
2705 (alpha_emit_set_long_const): Rewrite to be callable from reload
2707 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
2708 * alpha.md (movdi): Likewise.
2710 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
2712 * arm.c (add_constant): New parameter address_only, change caller.
2713 Set it non-zero if taking the address of an item in the pool.
2714 (arm_reorg): Handle cases where we need the address of an item in
2717 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
2719 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
2720 memory addresses that are not in standard canonical form.
2722 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
2724 * README.C4X: New file with information about the c4x ports.
2725 * ginclude/va-c4x.h: New file for c4x varargs support.
2726 * config/c4x: New directory with c4x port files.
2728 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
2730 * reload.c (find_reloads): Do not replace a pseudo with
2731 (MEM (reg_equiv_addr)) in the initializing insn for the
2734 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
2736 * toplev.c (rest_of_compilation): Set bct_p on second call to
2738 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
2740 (strength_reduce): Only call analyze_loop_iterations and
2741 insert_bct if bct_p set.
2742 (check_dbra_loop): Fix typo.
2743 (insert_bct): Use word_mode instead of SImode.
2744 (instrument_loop_bct): Likewise. Do not delete iteration count
2745 condition code generation insn. Initialize iteration count before
2747 * rtl.h (loop_optimize): Update prototype.
2749 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
2750 not doubleword aligned.
2752 * rs6000.c (optimization_options): New function.
2753 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
2754 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
2755 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
2756 first; cr1 can be used for FP record condition insns.
2758 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
2760 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
2763 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
2766 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
2768 (block_move_call): New function: Call a library routine to copy a
2770 (m32r_expand_block_move): New function: Expand a "movstrsi"
2771 pattern into a sequence of insns.
2772 (m32r_output_block_move): New function: Expand a
2773 "movstrsi_internal" pattern into a sequence of assembler opcodes.
2774 (m32r_block_immediate_operand): New function: Return true if the
2775 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
2777 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2779 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
2781 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
2783 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2785 * regmove.c (copy_src_to_dest): Check that modes match.
2787 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
2789 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
2791 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
2793 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
2794 narrower than FLOAT_REGS.
2796 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2798 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
2800 * Makefile.in (old_gxx_include_dir): removed
2802 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
2804 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
2807 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
2808 (sh_handle_pragma): Change function arguments to match new
2809 specification for HANDLE_PRAGMA.
2811 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2813 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
2815 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
2816 When generating output, initialize missing struct member to zero.
2818 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2820 * regmove.c (copy_src_to_dest): Don't copy if that requires
2821 (a) new register(s).
2823 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2825 * global.c (reg_allocno): Now static.
2826 * reload1.c (reg_allocno): Delete declaration.
2827 (order_regs_for_reload): Take no arguments. Don't treat regs
2828 allocated by global differently than those allocated by local-alloc.
2830 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
2832 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
2833 condition, fix format strings.
2834 (output_function_epilogue): Likewise.
2836 * m68k/m68k.c: Don't include <stdlib.h> directly.
2838 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
2840 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
2841 mem_first_set, mem_last_set; because 0 can be a CUID.
2842 (oprs_unchanged_p): Use new definition.
2843 (record_last_reg_set_info): Likewise.
2844 (record_last_mem_set_info): Likewise.
2845 (compute_hash_table): Likewise.
2847 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
2849 * rs6000.c (output_epilogue): Handle Chill.
2851 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
2852 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
2854 * combine.c (make_extraction): If no mode is specified for
2855 an operand of insv, extv, or extzv, default it to word_mode.
2856 (simplify_comparison): Similarly.
2857 * expmed.c (store_bit_field): Similarly.
2858 (extract_bit_field): Similarly.
2859 * function.c (fixup_var_regs_1): Similarly.
2860 * recog.c (validate_replace_rtx_1): Similarly.
2861 * mips.md (extv, extzv, insv expanders): Default modes for most
2862 operands. Handle TARGET_64BIT.
2863 (movdi_uld, movdi_usd): New patterns.
2865 * pa.c (emit_move_sequence): Do not replace a pseudo with its
2866 equivalent memory location unless we have been provided a scratch
2867 register. Similarly do not call find_replacement unless a
2868 scratch register has been provided.
2870 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2872 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
2875 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
2877 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
2878 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
2879 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
2880 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
2881 * c-decl.c (init_decl_processing): Update accordingly.
2882 * expr.c (expand_builtin): Likewise.
2884 * rtl.h (global_rtl): Add cfa entry.
2885 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
2886 (LAST_VIRTUAL_REGISTER): Update.
2887 * emit-rtl.c (global_rtl): Add cfa entry.
2888 (init_emit): Initialize it.
2889 * function.c (cfa_offset): New.
2890 (instantiate_virtual_regs): Initialize it.
2891 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
2892 (expand_function_end): Call expand_eh_return.
2893 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
2895 * except.c (current_function_eh_stub_label): Kill.
2896 (current_function_eh_old_stub_label): Likwise; update all references.
2897 (expand_builtin_set_return_addr_reg): Kill.
2898 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
2899 (expand_builtin_set_eh_regs): Kill.
2900 (eh_regs): Produce a third reg for the actual handler address.
2901 (eh_return_context, eh_return_stack_adjust): New.
2902 (eh_return_handler, eh_return_stub_label): New.
2903 (init_eh_for_function): Initialize them.
2904 (expand_builtin_eh_return, expand_eh_return): New.
2905 * except.h: Update prototypes.
2906 * flow.c (find_basic_blocks_1): Update references to the stub label.
2907 * function.h (struct function): Kill stub label elements.
2909 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
2910 register number is one that would be in the previous window.
2911 Provide a dummy definition for non-windowed targets.
2912 (get_reg_addr): New function.
2913 (get_reg, put_reg, copy_reg): Use it.
2914 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
2915 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
2917 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
2918 (alpha_init_expanders): Initialize it.
2919 (alpha_expand_epilogue): Use it.
2920 * alpha.h: Declare it.
2921 * alpha.md (eh_epilogue): New.
2923 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
2924 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
2926 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
2928 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
2931 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2933 * except.h (struct eh_entry): Add false_label field.
2934 (end_catch_handler): Add prototype.
2935 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
2936 (start_catch_handler): When using old style exceptions, issue
2937 runtime typematch code before continuing with the handler.
2938 (end_catch_handler): New function, generates label after handler
2939 if needed by older style exceptions.
2940 (expand_start_all_catch): No need to check for new style exceptions.
2941 (output_exception_table_entry): Only output the first handler label
2942 for old style exceptions.
2943 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
2944 mechanism into one function, if a runtime matcher is provided.
2946 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2948 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
2950 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
2952 * integrate.c (copy_decl_list): Fix typo.
2954 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2956 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
2959 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
2961 * version.c: Bump for snapshot.
2963 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
2965 * version.c: Bump for snapshot.
2967 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
2969 * version.c: Bump for snapshot.
2971 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2973 * invoke.texi (C Dialect Options): Put back missing @end itemize.
2975 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2977 * configure.in: remove usage of `!' to negate the result of a
2978 command; some common shells do not support it
2980 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2982 * configure.in: in sparc9-sol2 config, use 'if test' not
2984 * configure: Rebuilt.
2986 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
2988 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
2989 (CPP_CPU_DEFAULT_SPEC): Likewise.
2990 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
2991 for arch64 libfuncs.
2993 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
2996 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2998 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
3000 * collect2.c: Don't declare `sys_siglist' here.
3001 (my_strsignal): Prototype and define new function. Use it in
3002 place of `sys_siglist' hacks.
3004 * mips_tfile.c: Likewise.
3006 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
3007 (GCC_NEED_DECLARATIONS): Likewise.
3009 * system.h (strsignal): Prototype it, if necessary.
3010 (sys_siglist): Declare it, if necessary.
3012 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3014 * loop.c (move_movables): While removing insn sequences, preserve
3015 the next pointer of the most recently deleted insn when we skip
3018 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
3020 * objc/config-lang.in: Do not output the name of the selected
3021 thread file when building the front-end. The Makefile for the
3022 runtime library will do this.
3024 * objc/Make-lang.in: Do not build the runtime library or install
3025 the Objective C header files. The Makefile for the runtime
3026 library will do this.
3028 * objc/Makefile.in (all.indirect): Only build the front-end.
3029 (compiler): Rename to `frontend'.
3030 (obj-runtime): Remove target.
3031 (copy-headers): Likewise.
3032 (clean): No need to remove `libobjc.a' any longer.
3034 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
3036 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
3037 supported with -mcpu=xxx.
3039 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3041 * flow.c (mark_set_1): Recognize multi-register structure return
3042 values in CALL insns.
3043 (mark_used_regs): Likewise.
3044 (count_reg_sets_1): Likewise.
3045 (count_reg_references): Likewise.
3046 * rtlanal.c (note_stores): Likewise.
3047 (reg_overlap_mentioned_p): Likewise.
3048 * haifa-sched.c (check_live_1): Likewise.
3049 (update_live_1): Likewise.
3050 (sched_analyze_1): Likewise.
3051 (sched_note_set): Likewise.
3052 (birthing_insn_p): Likewise.
3053 (attach_deaths): Likewise.
3055 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
3058 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
3060 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
3062 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3064 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
3066 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3068 * configure.in: Add check for GAS subsection -1 support.
3069 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
3070 * configure config.in: Rebuilt.
3071 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
3072 SImode is subsection -1 works, else use DImode.
3073 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
3074 subsection -1 works.
3075 * config/sparc/sparc.c (sparc_output_addr_vec,
3076 sparc_output_addr_diff_vec): Use them if defined.
3078 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
3080 * tree.h (DECL_ORIGIN): New macro.
3081 * integrate.c (copy_and_set_decl_abstract_origin): New function.
3082 (copy_decl_list): Use it.
3083 (integrate_parm_decls): Likewise.
3084 (integrate_decl_tree): Likewise.
3085 * dwarf2out.c (decl_ultimate_origin): Simplify.
3086 * dwarfout.c (decl_ultimate_origin): Likewise.
3087 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
3088 (pushdecl): Likewise.
3090 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
3092 * config/rs6000/rs6000.c (output_epilog): Add Java support.
3094 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
3096 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
3098 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
3100 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
3101 empty or has a single entry.
3103 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
3104 before calling reg_to_stack.
3106 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
3108 * alpha.c (alphaev5_insn_pipe): Abort on default case.
3109 (alphaev5_next_group): Swallow CLOBBERs and USEs.
3111 * c-tree.h (warn_long_long): Declare it.
3113 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
3115 * emit-rtl.c (gen_lowpart_common): Disable optimization of
3116 initialized float-int union if the value is a NaN.
3118 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
3120 * c-lex.c (real_yylex): Don't warn about long long constants if
3121 we're allowing long long
3123 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3125 * except.h (current_function_eh_stub_label): Declare.
3126 (current_function_eh_old_stub_label): Declare.
3127 * function.h (struct function): New members eh_stub_label and
3129 * except.c (current_function_eh_stub_label): New variable.
3130 (current_function_eh_old_stub_label): New variable.
3131 (init_eh_for_function): Clear them.
3132 (save_eh_status): Save them.
3133 (restore_eh_status): Restore them.
3134 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
3135 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
3136 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
3137 make an edge from the block that contains it to the block starting
3138 with the label if this label is one of the eh stub labels.
3139 If eh stub labels exist, show they are reachable from the last block
3142 * reload1.c (reload): Break out several subroutines and make some
3144 (calculate_needs_all_insns): New function, broken out of reload.
3145 (calculate_needs): Likewise.
3146 (find_reload_regs): Likewise.
3147 (find_group): Likewise.
3148 (find_tworeg_group): Likewise.
3149 (something_needs_reloads): New global variable, formerly in reload.
3150 (something_needs_elimination): Likewise.
3151 (caller_save_spill_class): Likewise.
3152 (caller_save_group_size): Likewise.
3153 (max_needs): Likewise.
3154 (group_size): Likewise.
3155 (max_groups): Likewise.
3156 (max_nongroups): Likewise.
3157 (group_mode): Likewise.
3158 (max_needs_insn): Likewise.
3159 (max_groups_insn): Likewise.
3160 (max_nongroups_insn): Likewise.
3161 (failure): Likewise.
3163 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
3165 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
3167 * loop.c (load_mems): Copy rtx for output mem.
3169 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
3171 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
3172 mips1 or mips2 either.
3174 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
3176 * pa.c (pa_reorg): New marking scheme for jumps inside switch
3178 (pa_adjust_insn_length): Update to work with new marking scheme
3179 for jumps inside switch tables.
3180 * pa.md (switch_jump): Remove pattern.
3181 (jump): Handle jumps inside jump tables.
3183 * Makefile.in (profile.o): Depend on insn-config.h
3185 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
3187 * iris6.h (DWARF2_UNWIND_INFO): Undef.
3189 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3191 Add preliminary native sparcv9 Solaris support.
3192 * configure.in: Recognize sparv9-*-solaris2*
3193 * configure: rebuilt
3194 * config.sub: Recognize sparcv9 just like sparc64.
3195 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
3196 config/sparc/sol2-cn.asm: Macroize so it can be shared between
3197 32-bit and 64-bit Solaris systems.
3198 * config/sparc/t-sol2: Assemble those with cpp.
3199 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
3200 (*TF*_LIBCALL): If ARCH64 use V9 names.
3201 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
3203 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3205 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
3206 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
3208 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
3210 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
3211 to Pmode if CASE_VECTOR_MODE is something else.
3213 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
3215 * prefix.c (update_path): Correctly handle cases where PATH is
3216 a substring of the builtin prefix, but specifies a different
3219 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3221 * expr.c: Corrected comment about what MOVE_RATIO does.
3222 * config/alpha/alpha.h: Ditto.
3223 * config/1750a/1750a.h: Ditto.
3224 * config/clipper/clipper.h: Ditto.
3225 * config/i386/i386.h: Ditto.
3227 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
3229 * configure.in (m68k-next-nextstep3*): Use collect2.
3230 Similarly for x86 NeXT configurations.
3231 * configure: Rebuilt.
3233 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
3235 * configure.in: Don't assume srcdir is .../gcc
3236 * configure: Rebuilt.
3238 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
3240 * global.c: Update comments.
3241 (global_alloc): Assign allocation-numbers
3242 even for registers allocated by local_alloc in case
3243 they are later spilled and retry_global_alloc is called.
3244 (mark_reg_store, mark_reg_clobber,
3245 mark_reg_conflicts, mark_reg_death): Always record a
3246 conflict with a pseudo register even if it has been
3247 assigned to a hard register.
3248 (dump_conflicts): Don't list pseudo registers already assigned to
3249 a hard register as needing to be allocated, but do list their
3251 * local-alloc.c: Update comment.
3253 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
3255 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
3256 * configure: Rebuilt.
3258 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
3260 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
3262 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
3263 for all targets that set -msoft-float.
3265 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3267 * toplev.c (print_switch_values): Make static to match prototype.
3269 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
3271 * configure.in: If we are unable to find the "gnatbind" program,
3272 then do not configure the ada subdir.
3273 * configure: Rebuilt.
3275 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
3277 * version.c: Bump for snapshot.
3279 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
3281 * version.c: Bump for snapshot.
3283 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3285 * Makefile.in (toplev.o): Depend on $(EXPR_H).
3286 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
3288 * gansidecl.h: Define ATTRIBUTE_NORETURN.
3290 * genattrtab.c: Have insn-attrtab.c include toplev.h.
3292 * genextract.c: Have insn-extract.c include toplev.h.
3294 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
3296 * toplev.c: Include expr.h.
3297 (really_sorry, fancy_abort): Remove prototypes.
3298 (set_target_switch): Add argument in prototype.
3299 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
3300 (v_really_sorry): Likewise.
3301 (print_version, print_single_switch, print_switch_values): Make
3302 static and add prototype arguments.
3303 (decl_printable_name): Add prototype arguments.
3304 (lang_expand_expr_t): New typedef.
3305 (lang_expand_expr): Declare as a lang_expand_expr_t.
3306 (incomplete_decl_finalize_hook): Add prototype argument.
3307 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
3308 (botch): Likewise for variable `s'.
3309 (rest_of_type_compilation): Mark variables `type' and `toplev'
3310 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
3311 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
3312 (display_help): Make variable `i' an `unsigned long'.
3313 (main): Remove unused parameter `envp'.
3314 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
3315 Cast -1 when comparing it with a `size_t'.
3317 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
3318 prototype with ATTRIBUTE_NORETURN.
3319 (fatal_insn_not_found, fatal_insn, really_sorry,
3320 push_float_handler, pop_float_handler): Add prototypes.
3321 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
3322 (do_abort, botch): Add prototypes.
3324 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
3326 * final.c (final): If a label is reached only from a single jump,
3327 call NOTICE_UPDATE_CC on the jump and its predecessor before
3328 emitting the insn after the label.
3330 * i386.h: Add AMD K6 support.
3331 Change TARGET_* macros to use table lookup.
3332 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
3333 (ADJUST_COST): Change definition to call function in i386.c.
3334 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
3335 * i386.c: Add AMD K6 support.
3336 Add constants for feature tests used by TARGET_* macros.
3337 (split_di): If before reload, call gen_lowpart and gen_highpart.
3338 (x86_adjust_cost): New function.
3339 (put_jump_code): New function.
3340 (print_operand): New codes 'D' and 'd'.
3341 * i386.md: New insn types. New insn attribute "memory".
3342 Redefine scheduling parameters to use new types and add AMD K6
3343 support. Explicitly set type of most insns.
3344 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
3345 Pro and K6 prefer movl $1,reg to incl reg.
3346 (adddi3, subdi3): Set cc_status.
3347 (DImode shift patterns): Change label counters from HOST_WIDE_INT
3348 to int; x86 can't have more than 2^31 DImode shifts per file.
3349 (setcc): Combine all setcc patterns. Allow writing memory.
3350 Combine all jump patterns using match_operator.
3351 (*bzero): Name pattern. Emit mutliple stos instructions when that
3352 is faster than rep stos.
3353 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
3356 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
3358 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
3361 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
3363 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
3364 not whatever we're generating now.
3366 * alpha.c (set_frame_related_p, FRP): New.
3367 (alpha_expand_prologue): Mark frame related insns.
3368 (alpha_expand_epilogue): Likewise, but with a null FRP.
3369 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
3370 * alpha.md (exception_receiver): New.
3371 * alpha/crtbegin.asm (.eh_frame): New beginning.
3372 (__do_frame_setup, __do_frame_takedown): New.
3373 * alpha/crtend.asm (.eh_frame): New ending.
3374 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
3375 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
3376 (ASM_FILE_START): Don't emit .file for dwarf2.
3378 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
3379 * rtl.c (reg_note_name): Likewise.
3380 * rtl.texi (REG_NOTES): Likewise.
3381 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
3384 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
3386 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
3387 * i386.md (movsf, movdf, movxf): Validate memory address returned
3388 from force_const_mem. Kill useless REG_EQUAL setting code.
3390 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
3392 * m68k.md (zero_extendsidi2): Fix typo.
3394 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
3396 * configure.in: Removed references to the removed file
3397 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
3398 * arm*-*-netbsd* and ns32k-*-netbsd*.
3399 * config/i386/xm-netbsd.h: Removed unnecessary file.
3400 * config/m68k/xm-netbsd.h: Likewise.
3401 * config/sparc/xm-netbsd.h: Likewise.
3402 * config/mips/xm-netbsd.h: Likewise.
3404 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
3406 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
3407 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
3409 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
3410 for exact section attributions.
3412 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
3414 * i386/crtdll.h (CPP_PREDEFINES): Define.
3416 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
3418 * m68k.md (5200 movqi): Do not allow byte sized memory references
3420 * m68k.c (output_move_qimode): Do not use byte sized operations on
3423 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
3424 explicit rules for building. Similarly for alloca, vfprintf,
3425 choose-temp and mkstemp, getopt, getopt1, and obstack.
3426 (INCLUDES): Add $(srcdir)/../include.
3427 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
3428 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
3430 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
3432 * gcc.c (do_spec_1): [case 'o'] Account for
3433 lang_specific_extra_outfiles.
3434 (main): Correctly clear all slots in outfiles for
3435 lang_specific_extra_outfiles. Set input_file_number before
3436 calling lang_specific_pre_link.
3438 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
3440 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
3442 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3444 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
3446 (sparc_output_deferred_case_vectors): If no work to do, return.
3447 Fix thinko in Sept 1 change.
3449 1998-09-03 SL Baur <steve@altair.xemacs.org>
3451 * Makefile.in: add semicolon in BISON definition for portability.
3453 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
3455 * config/nextstep.c (handle_pragma): Correct name of third
3458 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
3460 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
3461 * config/m32r/m32r.h: Make register 17 be fixed.
3462 * config/m32r/m32r.c: Use SImode for cc operations.
3464 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
3466 * invoke.texi (Warning Options): Add -Wnon-template-friend
3469 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
3471 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
3473 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
3475 * rs6000.md (movsf): Disable explicit secondary-reload-like
3476 functionality if TARGET_POWERPC64.
3477 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
3480 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
3482 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
3483 and term.h from fixinc.wrap.
3485 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3487 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
3488 safe to include both string.h and strings.h together.
3489 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
3490 which headers to search for function declarations. Continue to
3491 prefer string.h over strings.h when both are not acceptable.
3493 * acconfig.h (STRING_WITH_STRINGS): Add stub.
3495 * configure.in: Call GCC_HEADER_STRING.
3497 * system.h: Test STRING_WITH_STRINGS when deciding which headers
3498 to include. Continue to prefer string.h over strings.h when both
3501 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3503 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
3504 not assume top 32-bits of symbolic addresses are zero if
3507 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
3509 * ginclude/va-alpha.h: Protect entire second portion of the
3510 file against double inclusion.
3512 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
3514 Added support for the Boehm's garbage collector.
3515 * configure.in: Handle --enable-objc-gc.
3516 * configure: Rebuilt.
3517 * Makefile.in (CHECK_TARGETS): Add check-objc.
3518 (check-objc): New rule.
3519 * objc/Make-lang.in: Build a different Objective-C library that
3520 runs with the Boehm's collector.
3521 * objc/encoding.c (objc_round_acc_size_for_types): New function.
3522 * objc/encoding.c: Correctly compute the size of compound types in
3523 the presence of bitfields. Skip the variable name of the type if
3524 any. Added support for long long.
3525 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
3526 (_F_GCINVISIBLE): New mask.
3527 * objc/gc.c: New file. Compute the type memory mask associated with
3528 a class based on the runtime information.
3529 * objc/misc.c: Added the hooks that use the Boehm's collector
3530 allocation functions.
3531 * objc/objc-act.c (build_class_template): Generate a new class
3532 member (gc_object_type) to hold the class' type memory mask.
3533 (build_shared_structure_initializer): Initialize the new member to
3535 (encode_complete_bitfield): New function. Generate the new
3537 (encode_field_decl): Generate the new encoding only for the GNU
3539 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
3541 (class_get_gc_object_type): New function to mark a pointer instance
3542 variable as a weak pointer.
3543 * objc/objc-features.texi: New file.
3544 * objc/objc.h (gc_object_type): New class member.
3545 * objc/objects.c (class_create_instance): Create a typed memory
3546 object when compiled with Boehm's collector support.
3547 * objc/sendmsg.c (__objc_init_install_dtable): Call
3548 __objc_send_initialize instead of setting the initialize flag.
3549 (__objc_send_initialize): Call __objc_generate_gc_type_description
3550 to generate the class type memory mask. Rewrite the code that
3551 sends the +initialize so that it is called only once (bug report
3552 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
3553 * testsuite/objc: New testsuite for Objective-C type encoding.
3554 * testsuite/lib/objc-torture.exp: New file.
3555 * testsuite/lib/objc.exp: New file.
3557 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
3559 * jump.c (jump_optimize): In if/then/else transformations, add
3560 another call to modified_between_p for the jump insn.
3562 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
3564 * fix-header.c (symlink): Treat like readlink.
3566 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3568 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
3571 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
3573 * config/nextstep.h: Update HANDLE_PRAGMA macro.
3574 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
3575 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
3577 * config/nextstep.c (handle_pragma): Take three arguments, as per
3578 the new HANDLE_PRAGMA macro specification.
3579 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
3580 per the new HANDLE_PRAGMA macro specification.
3581 * config/i960/i960.c (process_pragma): Take three arguments, as
3582 per the new HANDLE_PRAGMA macro specification.
3584 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
3586 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
3587 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
3588 if unknown pragmas are encountered.
3589 (handle_sysv_pragma): Interpret return code from
3590 handle_pragma_token (). Return success/failure indication rather
3591 than next unprocessed character.
3592 (pragma_getc): New function: retrieves characters from the
3593 input stream. Defined when HANDLE_PRAGMA is enabled.
3594 (pragma_ungetc): New function: replaces characters back into the
3595 input stream. Defined when HANDLE_PRAGMA is enabled.
3597 * c-pragma.c (handle_pragma_token): Return success/failure status
3600 * c-pragma.h: Change prototype of handle_pragma_token().
3602 * varasm.c: (handle_pragma_weak): Only create this function if
3603 HANDLE_PRAGMA_WEAK is defined.
3605 * c-common,c (decl_attributes): If defined call the expression
3606 contained within the INSERT_ATTRIBUTES macro before adding
3607 attributes to a decl.
3609 * tm.texi (HANDLE_PRAGMA): Document the new verion of
3610 HANDLE_PRAGMA, which takes three arguments.
3611 (INSERT_ATTRIBUTES): Document this new macro.
3613 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
3614 new INSERT_ATTRIBUTES macro.
3616 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3618 * config/sparc/sparc.md (movdf): Only generate special RTL for
3619 LABEL_REFs when PIC.
3620 (move_label_di): Remove
3621 (movdi_pic_label_ref, movdi_high_pic_label_ref,
3622 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
3623 references when PIC.
3624 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
3625 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
3626 output an .xword for all 64-bit cases.
3628 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3630 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
3631 alignment, use FUNCTION_BOUNDARY instead.
3632 (sparc_output_deferred_case_vectors): Likewise.
3634 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3636 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
3637 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
3639 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
3641 * alpha/va_list.h: New file.
3642 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
3644 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
3646 * NEWS: Add SCO Openserver and Unixware 7 notes.
3650 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
3652 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
3653 (record_constant_1): Handle RANGE_EXPR.
3655 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
3657 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
3658 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
3659 and NOTE_INSN_RANGE_END specially.
3660 (reemit_notes): Likewise.
3662 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3664 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
3665 (ultrasparc_sched_init): Remove unneeded &.
3667 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3669 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
3670 for m68020-60, to prevent the use of fintrz.
3672 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
3674 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
3676 * Makefile.in: Likewise.
3677 * configure: Regenerated.
3679 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
3681 * configure.in (gxx_include_dir): Changed to
3682 '${prefix}/include/g++'-${libstdcxx_interface}.
3683 * configure: Rebuilt.
3685 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
3687 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
3689 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
3690 *sequences* *below* which scalar moves will be used.
3692 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
3694 * collect2.c (mktemp): Delete unused declaration.
3696 * config/xm-netbsd.h: Remove unnecessary file.
3697 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
3698 file anymore, it is not needed.
3700 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
3702 * convert.c (convert_to_integer): Issue an error on conversions to
3705 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
3707 * Makefile.in: Add lang_tree_files and gencheck.h.
3708 * configure.in: Generate them.
3709 * gencheck.c: Include gencheck.h.
3711 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3713 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
3714 movdi_lo_sum_pic and movdi_high_pic and make visible.
3715 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
3716 emit these when Pmode is not SImode.
3717 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
3719 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
3721 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
3722 .linkonce directive after the first time.
3724 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
3726 * m68k.md (beq0_di): Generate correct (and more efficient) code when
3727 the clobbered operand overlaps with an input.
3728 (bne0_di): Similarly.
3730 * Makefile.in (INSTALL): Remove "--no-header" argument.
3732 * NEWS: Various updates.
3734 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3736 * config/sparc/sparc.c (arith_operand, const64_operand,
3737 const64_high_operand, arith_double_4096_operand): Mark mode as
3739 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
3741 (sparc_emit_set_const64): Remove unused variable i.
3742 (sparc_splitdi_legitimate): Likewise for addr_part.
3743 (ultra_code_from_mask): Likewise for mask.
3744 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
3745 reverse return values so it matches usage and comments.
3746 (ultra_flush_pipeline): Likewise.
3747 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
3748 this_type, and allow loads and stores of differing FP modes as
3749 they do not create a conflict.
3750 (ultra_find_type): Initialize fpmode to SFmode, fix
3751 parenthesization thinkos in large conditional.
3752 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
3753 Init free_slot_mask after ultra_cur_hist is reset, not before.
3754 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
3755 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
3756 use ultra_flush_pipeline instead, then re-init group pointer.
3757 Fix statement with no effect. If no progress made in, and no
3758 instructions scheduled at all, advance to new pipeline cycle else
3759 we get into an endless loop.
3760 (ultrasparc_adjust_cost): Remove previous arg.
3761 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
3763 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
3765 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
3766 code. Use reg_overlap_mentioned_p to detect when source and
3767 destination overlap.
3768 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
3770 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
3772 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
3773 COMPARISON_VAL, into invariant_p.
3775 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3777 * regmove.c (regclass_compatible_p): New function.
3778 (regmove_optimize): Use it.
3780 Use NREGS parameter insted of calling max_reg_num.
3782 (fixup_match_1): Don't use code = MINUS when later tieing with
3783 a hard register is likely.
3785 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3787 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
3788 COMPARISON_VAL was normalized.
3790 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
3792 * loop.c (check_dbra_loop): The loop ending comparison value
3793 must be an invariant or we can not reverse the loop.
3795 * loop.c (scan_loop): Count down from max_reg_num - 1 to
3796 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
3798 (load_mems_and_recount_loop_regs_set): Likewise.
3800 * i386.c (print_operand): Remove obsolete 'c' docs.
3802 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
3804 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
3805 * frame.c (init_object_mutex): New function.
3806 (init_object_mutex_once): Likewise.
3807 (find_fde): Call it.
3808 (__register_frame_info): Likewise.
3809 (__register_frame_info_table): Likewise.
3810 (__deregister_frame_info): Likewise.
3812 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
3814 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
3816 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3818 * loop.c (check_dbra_loop): Enable code for reversal
3819 of some loops without a known constant loop end.
3821 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
3823 * haifa-sched.c (last_clock_var): New.
3824 (schedule_block): Initialize it.
3825 (schedule_insn): Use it to fill insn modes with issue information.
3827 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
3828 Tag trapb and next insn with TImode.
3829 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
3830 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
3831 Invoke alphaev5_align_insns as appropriate.
3832 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
3833 (MD_SCHED_VARIABLE_ISSUE): New.
3834 * alpha.md (attr type): Add multi.
3835 (define_asm_attributes): New.
3836 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
3837 (arg_home): Likewise.
3838 (fnop, unop, realign): New.
3840 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
3842 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
3843 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
3845 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
3846 (rs6000-ibm-aix4.[12]*): Likewise.
3847 * configure: Regnerate.
3849 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
3851 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
3852 already contains the return address.
3854 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
3856 * calls.c (expand_call): Use bitfield instructions to extract/deposit
3857 word sized hunks when loading unaligned args into registers.
3859 * haifa-sched.c (sched_analyze_insn): Only create scheduling
3860 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
3862 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
3864 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3866 * loop.c (check_dbra_loop): Add some code that would allow reversal
3867 of some loops without a known constant loop end if it were enabled.
3869 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
3871 * mips.md (lshrsi3_internal2+2): Fix type-o.
3873 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3875 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
3876 correctly with regards to stdio.h.
3878 * calls.c: Remove stdarg.h/varargs.h.
3881 * combine.c: Likewise.
3882 * cpperror.c: Likewise.
3883 * cpplib.c: Likewise.
3884 * cpplib.h: Likewise.
3885 * doprint.c: Likewise.
3886 * emit-rtl.c: Likewise.
3887 * final.c: Likewise.
3888 * fix-header.c: Likewise.
3890 * genattr.c: Likewise.
3891 * genattrtab.c: Likewise.
3892 * gencodes.c: Likewise.
3893 * genconfig.c: Likewise.
3894 * genemit.c: Likewise.
3895 * genextract.c: Likewise.
3896 * genflags.c: Likewise.
3897 * genopinit.c: Likewise.
3898 * genoutput.c: Likewise.
3899 * genpeep.c: Likewise.
3900 * genrecog.c: Likewise.
3901 * mips-tfile.c: Likewise.
3902 * prefix.c: Likewise.
3903 * protoize.c: Likewise.
3904 * regmove.c: Likewise.
3905 * toplev.c: Likewise.
3908 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3910 * config/sparc/sparc.c (sparc_override_options): If not
3911 TARGET_FPU, turn off TARGET_VIS.
3912 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
3913 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
3914 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
3915 (movdi_insn_sp64): Add VIS fzero alternative.
3916 (clear_sf, clear_df): New VIS patterns.
3917 (movsf, movdf expanders): Allow fp_zero_operand flat out when
3919 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
3921 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
3923 * loop.c (n_times_set, n_times_used, may_not_optimize,
3924 reg_single_usage): Convert to varrays. All uses changed.
3925 (insert_loop_mem): Return a value.
3926 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
3927 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
3930 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
3933 * configure.in: Do not set thread_file to "irix" since no such
3936 * sparc.md (float abs/neg splits): Check reload_completed before
3937 calling alter_subreg.
3939 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3941 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
3943 * config/sparc/sparc.h: Declare it.
3944 * config/sparc/sparc.md (float abs/neg splits): Use it.
3945 (all other splits): Handle SUBREGs properly where necessary.
3946 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
3948 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
3950 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
3951 an insn on the unfilled_slots_list that has no delay slots.
3952 (fill_eager_delay_slots): Similarly.
3954 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
3956 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
3957 as an ordinary operand.
3959 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
3961 * tree.c (valid_machine_attribute): Don't apply attributes to both
3964 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
3966 * reload.c (operands_match_p): Handle rtvecs.
3968 * i386.c (legitimate_pic_address_disp_p): New.
3969 (legitimate_address_p): Use it.
3970 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
3971 Handle constant pool symbols just like statics.
3972 (emit_pic_move): Use Pmode not SImode for clarity.
3973 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
3974 [UNSPEC]: New, handling what we killed above.
3975 [PLUS]: Detect and abort on invalid symbol arithmetic.
3976 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
3978 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
3980 * alias.c: Include output.h.
3981 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
3982 different if we're in a varargs function.
3983 * Makefile.in (alias.o): Depend on output.h
3985 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3987 * sh.h (GIV_SORT_CRITERION): Delete.
3989 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
3991 * regclass.c (regclass): Use xmalloc/free instead of alloca.
3992 * stupid.c (stupid_life_analysis): Ditto.
3993 * reload1.c (reload): Ditto.
3995 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3997 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
3998 arith_double_4096_operand, arith_double_add_operand): New
4000 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
4001 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
4002 them to transform add/sub 4096 into add/sub -4096.
4004 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4006 * loop.c (scan_loop): Allocate some slop to handle pseudos
4007 generated by move_movables.
4008 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
4011 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
4013 * tree.def (DECL_RESULT): Correct documentation.
4015 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4017 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
4018 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
4019 conflicts will all RELOAD_FOR_OUTPUT reloads.
4021 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
4022 loads the function result, substitute with a USE.
4024 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4026 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
4027 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
4028 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
4029 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
4030 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
4031 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
4033 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
4034 'o' to 'm' for GPR variant constraints.
4036 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
4038 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
4040 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
4042 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
4043 when the source and destination overlap.
4045 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
4046 clash with global type.
4048 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
4050 * fixinc.irix: Add curses.h handling from fixinc.wrap.
4052 * c-common.c (combine_strings): Also set TREE_READONLY.
4053 Change warn_write_strings to flag_const_strings.
4054 * c-decl.c, c-tree.h: Likewise.
4056 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4058 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
4059 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
4060 sequence, use SET/IOR instead so CSE can see it.
4061 * config/sparc/sparc.md (movhi_const64_special,
4062 movsi_const64_special): New patterns necessitated by that change.
4063 (movhi_high): Remove.
4064 (movhi_lo_sum): Change to match an IOR.
4065 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
4066 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
4067 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
4068 (movdf splits): Allow when not V9 or when not ARCH64 and integer
4069 registers are involved.
4070 (snesi_zero_extend split): Remove reload_completed test.
4071 (unnamed plus and minus zero_extend sidi splits): Add it.
4073 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
4075 * extend.texi: Remove description of extension to explicit
4076 instantiation that is now endorsed by standard C++.
4078 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4080 * config/arc/arc.c (arc_initialize_pic): Remove.
4081 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
4082 nothing on any platform and is invoked by no-one, it does not even
4083 appear in the documentation.
4084 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
4085 * config/sparc/sparc.c (initialize_pic): Likewise.
4086 (find_addr_reg): Remove this as well, no longer referenced after
4089 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
4091 * recog.c (validate_replace_rtx_group): New function.
4092 * recog.h (validate_replace_rtx_group): Declare it.
4093 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
4094 the entire group of substitutions.
4096 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
4098 * loop.c (load_mems): Fix initializers.
4100 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4102 * config/sparc/sparc.md (TFmode splits): Handle destination
4103 registers being referenced in the address correctly.
4105 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
4106 TREE_UNSIGNED, when bitsize of type's mode is larger than
4107 HOST_BITS_PER_WIDE_INT.
4109 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4111 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
4112 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
4113 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
4115 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
4118 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
4120 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
4121 * h8300.h (TINY_DATA_NAME_P): Likewise.
4122 (STRIP_NAME_ENCODING): Handle '&'.
4124 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
4125 register (it could be accessed via an outer SUBREG).
4126 (REG_OK_FOR_BASE_P): Likewwise.
4127 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
4129 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
4132 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
4134 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4136 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
4137 must be offsettable so the splits can be made.
4139 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
4141 * config/i386/winnt.c: Include system.h, not stdio.h to get
4142 sys/param.h pulled in before rtl.h in case the system defines MIN
4145 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
4147 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
4149 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
4151 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
4153 * cpplib.c (cpp_define): Handle macros with parameters.
4155 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4157 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
4158 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
4159 and DImode 64-bit. Use llong for minimal-toc SFmode and
4160 SYMBOL_REF / LABEL_REF 64-bit.
4161 (output_function_profiler): Use llong for profiler label and ld to
4162 load 64-bit label address.
4164 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
4166 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
4169 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
4171 * version.c: Bump for snapshot.
4173 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
4175 * version.c: Bump for snapshot.
4177 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
4179 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
4181 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
4183 * tm.texi (Misc): Fix typo "teh".
4185 * tm.texi (PIC): Fix typo "PPIC".
4187 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
4188 effect when -O2 and higher.
4189 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
4191 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
4193 * regclass.c: Changed register set documentation to be consistent
4196 * final.c (final_start_function) Removed redundant test for
4199 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
4201 * rtl.h (rtx_function): New type.
4202 (for_each_rtx): New function.
4203 * rtlanal.c (for_each_rtx): Define it.
4205 * recog.c (change_t): New type.
4206 (change_objects, change_old_codes, change_locs, change_olds):
4208 (changes): New variable.
4209 (validate_change): Dynamically allocate room for more changes, if
4210 necessary. Uses changes array instead of change_objects, etc.
4211 (apply_change_group): Use changes array instead of
4212 change_objects, etc.
4214 * loop.c (loop_mem_info): New type.
4215 (loop_mems): New variable.
4216 (loop_mems_idx): Likewise.
4217 (looop_mems_allocated): Likewise.
4218 (scan_loop): Remove nregs parameter.
4219 (next_insn_in_loop): New function.
4220 (load_mems_and_recount_loop_regs_set): Likewise.
4221 (load_mems): Likewise.
4222 (insert_loop_mem): Likewise.
4223 (replace_loop_mem): Likewise.
4224 (replace_label): Likewise.
4225 (INSN_IN_RANGE_P): New macro.
4226 (loop_optimize): Don't pass max_reg_num() to scan_loop.
4227 (scan_loop): Remove nregs parameter, compute it after any new
4228 registers are created by load_mems. Use INSN_IN_RANGE_P and
4229 next_insn_in_loop rather than expanding them inline. Call
4230 load_mems to load memory into pseudos, if appropriate.
4231 (prescan_loop): Figure out whether or not there are jumps from the
4232 loop to targets other than the label immediately following the
4233 loop. Call insert_loop_mem to notice all the MEMs used in the
4234 loop, if it could be safe to pull MEMs into REGs for the duration
4236 (strength_reduce): Use next_insn_in_loop. Tweak comments.
4238 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
4240 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
4242 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4244 * config/sparc/sparc.c (finalize_pic): Check for the correct
4245 nonlocal_goto_receiver UNSPEC number.
4246 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
4247 making note of this dependency existing in sparc.c
4248 (negtf2_notv9 split): Give NEG SFmode.
4249 (negsf2): Fix insn output string.
4251 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
4253 * c-common.c (decl_attributes): Issue an error if the argument
4254 to alias is not a string.
4256 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
4258 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
4259 pending memory flush list.
4261 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
4263 (try_combine): Allow combining insns with REG_LIBCALL notes.
4265 * expr.c (emit_block_move): Do not call memcpy as a libcall
4266 instead build up a CALL_EXPR and call it like any other
4268 (clear_storage): Similarly for memset.
4270 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
4273 * Makefile.in (cplus-dem.o): Provide explicit rules for building
4276 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
4277 and REG_LIVE_LENGTH as successful substitutions are made.
4279 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4281 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
4282 statement after end of loop label.
4284 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4286 * config/sparc/sparc.c (ultra_types_avail): New variable.
4287 (ultra_build_types_avail): New function to record mask of insn
4288 types in ready list at this cycle.
4289 (ultrasparc_sched_reorder): Call it.
4290 (ultra_find_type): Use it to quicken the search. Also simplif
4291 dependency check, don't use rtx_equal_p because we know exactly
4292 what we are looking for.
4294 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
4296 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
4297 for architecture v4.
4299 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4301 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
4303 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
4304 movdf_const_intreg and helper splits): New patterns to move float
4305 constants into integer registers.
4306 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
4309 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
4312 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
4314 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
4316 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
4317 a BASE_REGS register is needed as an intermediate when copying
4318 a symbolic value into any register class other than BASE_REGS.
4320 * expr.c (move_by_pieces): No longer static. Remove prototype.
4321 * rtl.h (move_by_pieces): Add extern prototype.
4322 * mips.c (expand_block_move): Handle aligned straight line copy by
4323 calling move_by_pieces.
4325 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
4328 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
4330 * stmt.c (expand_end_loop): Tidy. Allow unconditional
4331 jumps out of the loop to be treated as part of the exit test.
4333 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4334 Jeff Law <law@cygnus.com>
4336 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
4337 * cplus-dem.c: Delete.
4339 * Makefile.in (fold-const.o): depend on $(RTL_H).
4341 * fold-const.c: Include rtl.h to get the prototype for
4342 `set_identifier_local_value'.
4344 * loop.c (express_from_1): Remove unused variable `tmp'.
4345 (combine_givs): cast the first argument of bzero to char *.
4347 * toplev.c (display_help): Remove unused variable `looking_for_start'.
4349 * c-decl.c (init_decl_processing): Remove unneeded &.
4351 * alpha.h (alpha_initialize_trampoline): Provide prototype.
4353 * except.c (set_exception_lang_code, set_exception_version_code):
4354 Change parameter from `short' to `int' to avoid using a gcc
4357 * except.h (set_exception_lang_code, set_exception_version_code):
4358 Likewise for prototypes.
4360 * flow.c (count_reg_references): Remove unused variables `regno'
4363 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
4365 * prefix.c (translate_name): Cast the result of `alloca'.
4367 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
4369 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4371 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
4373 (valid_dbcc_comparison_p): Mark mode argument as unused.
4374 (symbolic_operand): Likewise.
4375 (legitimize_pic_address): Likewise.
4376 (const_uint32_operand): Likewise.
4377 (const_sint32_operand): Likewise.
4378 * sched.c [!INSN_SCHEDULING]: Define only dummy function
4379 schedule_insns and comment out rest of file.
4381 * m68k.c (output_move_simode_const): Use subl to move a zero into an
4383 (output_move_[hq]imode): Likewise.
4385 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
4387 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
4388 * invoke.texi: Corresponding changes.
4390 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
4392 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
4394 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4396 * config/sparc/sparc.c (ultra_code_from_mask,
4397 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
4398 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
4399 ultrasparc_sched_init, ultrasparc_variable_issue,
4400 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
4401 functions to describe UltraSPARC pipeline exactly to Haifa.
4402 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
4403 as there is nothing the scheduler can do about it. Indicate that
4404 REG_DEP_OUTPUT's collide. Fixup formatting.
4405 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
4406 divide costs on Ultra for DImode.
4407 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
4409 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
4410 ieuN and add call_no_delay_slot to type list.
4411 (cti function unit): New unit for branches on UltraSPARC.
4412 (subx/addx insns): Set type to misc.
4413 (sidi zero/sign extension insns on arch64): Set type to shift.
4414 (sign_extendhidi2_insn): Set type to sload.
4416 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
4418 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
4419 (output_epilog): Use if != 0 for offset.
4420 (rs6000_fatal_bad_address): Prepare for Intl.
4421 * rs6000.h (rs6000_fatal_bad_address): Declare.
4422 * rs6000.md (movsfcc, movdfcc): Use else if.
4423 (elf_high): Use {liu|lis}.
4424 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
4425 (movsi): Use rs6000_fatal_bad_address.
4427 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
4429 * reload.c (find_equiv_reg): Reject equivalences separated
4430 by a volatile instruction.
4432 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
4434 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
4436 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
4438 * alpha.md (movsicc): Fix mode mismatch.
4440 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
4442 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
4444 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
4446 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4448 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
4449 write-only modifier from operand 1 constraint.
4451 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4453 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
4454 emitting a XOR of -1 at the end, emit a NOT instead for combine's
4456 (sparc_emit_set_const64): Likewise, also when computing trailing
4457 bits do not negate low_bits and make fast_int an int.
4459 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
4461 * loop.c (add_label_notes): Do not ignore references to labels
4462 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
4463 * gcse.c (add_label_notes): Similarly.
4465 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
4467 * m68k.md (adddi_dilshr32): One of the operands must be a register.
4468 (adddi_dishl32): Similarly.
4470 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
4472 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
4473 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
4474 * cse.c (cse_basic_block): Add parens to shut up warnings.
4476 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4478 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
4479 sparc_emit_set_const64_longway, const64_is_2insns,
4480 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
4481 in 64-bit constant formation.
4482 * config/sparc/sparc.md (snesi_zero_extend split): Generate
4483 rtl for addx not subx.
4484 (define_insn movdi_const64_special): Make available even when
4485 HOST_BITS_PER_WIDE_INT is not 64.
4486 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
4487 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
4488 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
4489 instances of operand 1 inside a QI subreg.
4490 (xordi3_sp64_dbl): Remove '%' constraint for op1.
4491 (one_cmpldi2_sp64): Fix output string.
4492 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
4494 (unnamed arch64 ashift DI): Truncate shift count if greater than
4497 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4499 * expr.c (store_expr): Don't optimize away load-store pair
4500 when either source or destination have a side effect.
4502 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
4504 * genrecog.c (add_to_sequence): Fatal error if the modes of the
4505 operands of SET are incompatible.
4507 * alpha.md: Fix max and min patterns so modes of SET operands match.
4509 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
4511 * configure.in: Avoid [[ by using test and changequote.
4512 * configure: Rebuild.
4514 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4516 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
4518 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
4519 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
4520 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
4521 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
4522 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
4523 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
4524 Fix mismatching modes in SET operands.
4525 (conditional move patterns): Fix formatting.
4526 (unnamed subx arch64 pattern): Remove duplicate insn.
4528 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4530 * config/sparc/sparc.c (const64_operand, const64_high_operand):
4531 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
4532 (input_operand): Fixup test for what we accept for constant
4534 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
4536 (safe_constDI): Remove.
4537 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
4538 gen_safe_XOR64): New functions.
4539 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
4540 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
4542 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
4543 available when HOST_BITS_PER_WIDE_INT is not 64.
4544 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
4545 move before movdi_insn_sp64 pattern.
4546 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
4547 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
4548 symbolic_operand as predicate for second operand.
4549 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
4550 expander): Give set VOIDmode.
4552 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
4554 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
4556 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
4558 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
4560 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
4562 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
4564 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
4566 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
4568 * install.texi: Various SCO OpenServer tweaks.
4570 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
4572 * reload1.c (eliminate_regs_in_insn): Handle another case when
4573 eliminating the frame pointer to the hard frame pointer. Add
4574 missing ep->to_rtx check to one existing case.
4576 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
4578 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
4580 * tree.h: De-conditionalize init_priority code.
4582 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
4583 * collect2.c (NM_FLAGS): Change from -p to -n.
4585 * configure.in: Turn on collect2 for mipstx39-elf.
4586 Handle use_collect2=no properly.
4588 * c-common.c: De-conditionalize init_priority code.
4589 * collect2.c (extract_init_priority, sort_ids): New fns.
4590 (main): Call sort_ids.
4591 Move sequence_number to file scope.
4593 * configure.in: Handle --enable-init-priority.
4594 * c-common.c (attrs): Add A_INIT_PRIORITY.
4595 (init_attributes, decl_attributes): Likewise.
4596 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
4597 * tree.c (get_file_function_name_long): Split out...
4598 (get_file_function_name): ...from here.
4600 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
4602 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
4605 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
4607 * toplev.c (display_help): Add braces to shut up warnings.
4608 * tree.c (simple_cst_equal): Likewise.
4610 * fold-const.c (non_lvalue): Don't deal with null pointer
4612 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
4614 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
4615 of any size to a pointer.
4617 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
4619 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
4621 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
4623 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
4624 which will be saved.
4625 * mn10300.md (prologue insn): Only save registers which need saving.
4626 (epilogue insn): Similarly.
4628 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
4631 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
4633 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
4634 VAR_DECL's in gp addressable sections.
4636 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
4638 * sparc.c: Change return <exp> to <exp>; return; in functions
4640 * sparc.md: Add empty semicolon statement after final label in
4643 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4645 * config/sparc/sparc.md (define_insn addx_extend): Rename to
4646 addx_extend_sp64, only allow when TARGET_ARCH64.
4647 (define_insn addx_extend_sp32 and split): Version that works when
4649 (define_insn subx_extend): Likewise.
4650 (define_split adddi3 and subdi3 with zero extension): Fixup and
4651 correct bugs when not TARGET_ARCH64.
4653 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
4655 * except.c (set_exception_lang_code, set_exception_version_code):
4656 Use prototype-style definition if __STDC__, to match declaration
4659 * genemit.c: Change FAIL and DONE macros not to use loops.
4661 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
4663 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
4664 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
4666 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
4668 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
4670 * README.g77: Update from Craig.
4672 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4674 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
4676 (safe_constDI sparc_emit_set_const64_quick1,
4677 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
4678 analyze_64bit_constant, const64_is_2insns,
4679 create_simple_focus_bits): Fix some bugs when compiled on real
4681 (function_arg_record_value_3, function_arg_record_value_2,
4682 function_arg_record_value): Add fully prototyped forward decls.
4683 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
4684 to cmpsi_insn and use on both 64 and 32 bit targets.
4685 (define_insn cmpsi_insn_sp64): Remove.
4686 (define_expand zero_extendsidi2): Allow for 32-bit target too.
4687 (define_insn zero_extendsidi2_insn): Rename to
4688 zero_extendsidi2_insn_sp64.
4689 (define_insn zero_extendsidi2_insn_sp32): New pattern and
4690 assosciated forced split for it.
4692 * config/sparc/sparc.c (const64_operand, const64_high_operand):
4694 * config/sparc/sparc.h: Declare them.
4695 (PREDICATE_CODES): Add them.
4696 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
4697 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
4699 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
4701 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
4702 in v9 case as the latter makes the Solaris assembler crash.
4704 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4706 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
4707 for TFmode when !v9. We require offsettable memory addresses.
4708 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
4709 DFmode register number conversions.
4710 * config/sparc/sparc.md (define_split DFmode moves): If register
4711 is a SUBREG do alter_subreg on it before using.
4712 (define_expand movtf): Fixup comment about alignment on v9.
4713 (define_split TFmode moves): Don't use gen_{high,low}part, create
4714 explicit SUBREGs instead.
4716 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
4718 * Makefile.in (mbchar.o): Depend on mbchar.c.
4720 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4721 Richard Henderson <rth@cygnus.com>
4723 Rewrite Sparc backend for better code generation and
4724 improved sparc64 support.
4725 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
4727 * config/sparc/sysv4.h: Likewise.
4728 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
4729 move_operand, v8plus_regcmp_op, emit_move_sequence,
4730 singlemove_string, doublemove_string, mem_aligned_8,
4731 output_move_double, output_move_quad, output_fp_move_double,
4732 move_quad_direction, output_fp_move_quad, output_scc_insn):
4734 (small_int_or_double): New predicate.
4735 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
4736 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
4737 old pic_{sethi,lo_sum}_si patterns.
4738 (mem_min_alignment): New generic function to replace
4739 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
4740 available and can test for arbitrary alignments. All callers
4742 (save_regs, restore_regs, build_big_number,
4743 output_function_prologue, output_cbranch, output_return,
4744 sparc_flat_save_restore, sparc_flat_output_function_prologue,
4745 sparc_flat_output_function_epilogue): Prettify
4747 (output_function_epilogue): Likewise and add code to output
4748 deferred case vectors.
4749 (output_v9branch): Likewise, add new arg INSN and use it to tack
4750 on branch prediction settings. All callers changed.
4751 (print_operand): Likewise and output %l44 for LO_SUMs when
4753 (sparc_splitdi_legitimate): New function to make sure DImode
4754 splits can be run properly when !arch64.
4755 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
4756 Reformat example code in comments.
4757 (set_extends): Remove UNSPEC/v8plus_clear_high case.
4758 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
4759 of deferred case vectors we need to output.
4760 (sparc_defer_case_vector): Record a case vector.
4761 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
4762 sparc_output_deferred_case_vectors): New functions to output them.
4763 (sparc_emit_set_const32): New function to form 32-bit constants in
4764 registers when that requires more than one instruction.
4765 (safe_constDI, sparc_emit_set_const64_quick1,
4766 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
4767 analyze_64bit_constant, const64_is_2insns,
4768 create_simple_focus_bits, sparc_emit_set_const64): New functions
4769 which do the same for 64-bit constants when arch64.
4770 (sparc_emit_set_symbolic_const64): New function to emit address
4771 loading for all code models on v9.
4772 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
4773 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
4774 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
4775 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
4776 inaccuracies in comments, add symbolic and text_segment operands
4777 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
4778 GENERAL_REGS in these cases as a temp REG is needed to load these
4779 addresses into a register properly.
4780 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
4782 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
4783 quads are guarenteed to have 16-byte alignment.
4784 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
4785 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
4786 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
4787 deferred case vector implementation.
4788 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
4789 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
4790 Generate "internal label - label" instead of "label - 1b".
4791 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
4792 (PREDICATE_CODES): Remove sparc_operand, move_operand,
4793 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
4795 (doublemove_string, output_block_move, output_fp_move_double,
4796 output_fp_move_quad, output_move_double, output_move_quad,
4797 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
4798 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
4799 (sparc_emit_set_const32, sparc_emit_set_const64,
4800 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
4801 mem_min_alignment, small_int_or_double): Add externs.
4802 * config/sparc/sparc.md: Document the many uses of UNSPEC and
4803 UNSPEC_VOLATILE in this backend.
4804 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
4805 unary to types which execute in it.
4806 (define_function_unit ieu_shift): Rename to ieu0.
4807 (define_function_unit ieu1): New, executes compare, call, and
4808 uncond_branch type insns.
4809 (define_function_units for type fdivs, fdivd, fsqrt): These
4810 execute in the fpu multiply unit not the adder on UltraSparc.
4811 (define_expand cmpdi): Disallow TARGET_V8PLUS.
4812 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
4813 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
4814 allows the arith_double_operand predicate and rHI constraint when
4816 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
4817 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
4818 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
4819 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
4820 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
4821 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
4822 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
4823 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
4824 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
4825 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
4826 sign_extendqihi2_insn, sign_extendqisi2_insn,
4827 sign_extendqidi2_insn, sign_extendhidi2_insn,
4828 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
4829 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
4830 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
4831 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
4832 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
4833 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
4834 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
4835 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
4836 smulsi3_highpart_v8plus, unnamed subreg mult,
4837 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
4838 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
4839 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
4840 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
4841 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
4842 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
4843 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
4844 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
4845 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
4846 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
4847 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
4848 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
4849 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
4850 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
4851 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
4852 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
4853 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
4854 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
4855 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
4856 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
4857 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
4858 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
4859 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
4860 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
4861 call_address_untyped_struct_value_sp32,
4862 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
4863 call_value_symbolic_sp32, call_value_address_sp64,
4864 call_value_symbolic_sp64, branch_sp32, branch_sp64,
4865 flush_register_windows, goto_handler_and_restore,
4866 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
4867 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
4868 return_addsi, return_di, return_adddi, return_sf, all call+jump
4869 peepholes, trap, unnamed trap insns): Prettify output strings.
4870 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
4871 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
4872 Likewise and force + implement splits for integer cases.
4873 (define_insn return_sf_no_fpu): Likewise and allow to match when
4874 no-fpu because of our subreg SFmode splits.
4875 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
4876 zero_extendqidi2_insn, zero_extendhidi2_insn,
4877 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
4878 input_operand for second operand.
4879 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
4880 reg_or_0_operand for operand 2 so new splits can use it.
4881 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
4882 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
4884 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
4885 CONST_DOUBLEs for operand 2.
4886 (define_insn move_label_di): Likewise and label distance
4887 optimization because it no longer works with new deferred case
4888 vector scheme. To be revisited.
4889 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
4890 and allow reg_or_0_operand and J constraint for second operand.
4891 (define_insn jump): Set branch predict taken on V9.
4892 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
4893 new deferred case vector scheme.
4894 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
4895 (define_insn negdi2_sp32): Force + implement splits.
4896 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
4897 one_cmplsi2_not_liveg0 respectively, and create expander of original
4898 names which emit special rtl for TARGET_LIVE_G0.
4899 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
4900 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
4901 gen_compare_reg, FAIL instead.
4902 (define_insn sgtu, sleu): Likewise and check gen_s*() return
4903 values when trying to reverse condition codes, if they FAIL then
4905 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
4906 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
4907 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
4908 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
4909 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
4910 set output string to # to indicate they are mandatory splits.
4911 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
4912 pic_sethi_di, move_pic_label_si): Remove.
4913 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
4914 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
4916 (define_expand movsi_pic_label_ref, define_insn
4917 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
4918 expander and insns to handle PIC label references and deferred
4920 (define_insn get_pc_via_rdpc): Comment out as it is no longer
4922 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
4923 Rewrite to not use emit_move_sequence, make use of new constant
4924 formation code, and new splits for all multi-insn cases.
4925 (define_insn movqi_insn): Remove sethi case, it can never happen.
4926 Use reg_or_zero_operand instead of const0_rtx explicit test,
4927 use input_operand instead of move_operand for source, and use
4928 general_operand now for dest.
4929 (define_insn movhi_insn): Similar but leave sethi case.
4930 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
4931 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
4932 movhi_lo_sum respectively, prettify output string.
4933 (define_insn movsi_zero_liveg0): New pattern to put zero into a
4934 register when needed on TARGET_LIVE_G0.
4935 (define_insn movsi_insn): Use general_operand and input_operand
4936 for dest and src respectively. Simplify applicability test.
4937 Prettify output strings, and add clr alternative for J
4939 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
4940 deprecated std and reg-reg DI moves): Remove and...
4941 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
4942 implementation which uses forced splits for all non-single insn
4944 (define_split DI move cases on !arch64): New splits to handle all
4945 situations of 64-bit double register DImode on 32bit, and
4946 unaligned registers and memory addresses for all subtargets.
4947 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
4949 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
4950 input_operand for dest and src respectively, prettify output
4952 (define_insn movdf_insn, movdf_no_e_insn, store_df,
4953 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
4955 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
4956 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
4957 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
4958 movtf_no_e_insn_sp64) Replace with new
4959 implementation which uses forced splits for all non-single insn
4961 (define_split DF move cases): New splits in similar vein to DI
4963 (define_insn sethi_di_medlow, sethi_di_medium_pic,
4964 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
4965 movdi_sp64_insn): Remove old v9 code model and constant loading
4967 (define_insn pic_lo_sum_di, pic_sethi_di,
4968 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
4969 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
4970 embmedany_sethi, embmedany_losum, embmedany_brsum,
4971 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
4972 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
4973 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
4974 scheme, using unspecs, secondary reloads, and one to one sparc
4975 insn to rtl insn mapping for better scheduling and code gen.
4976 (define_expand reload_indi, reload_outdi): Reload helpers for
4977 MEDANY and EMBMEDANY symbol address loading cases which require a
4979 (define_expand movsicc): Remove v8plus_regcmp cases.
4980 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
4981 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
4982 cmp_diqi_trunc_set): New patterns used by some of the new scc
4984 (define_insn xordi3_sp64_dbl): New pattern used for constant
4985 formation when crossing from 32-bit targets.
4986 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
4988 (define_insn addx, subx): Make visible and prettify.
4989 (define_insn adddi3_insn_sp32): Likewise and force split.
4990 (define_insn addx_extend, subx_extend, unnamed): New patterns for
4991 64bit scc split usage.
4992 (define_insn unnamed plusDI zero_extend, unnamed minusDI
4993 zero_extend, subdi3): Force and implement splits.
4995 * final.c (final_scan_insn): Don't output labels if target
4996 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
4999 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
5000 don't forget to walk inside SEQUENCESs too as these are what the
5001 delay slot scheduler will create.
5003 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
5005 * alpha.md (extxl+1,+2): New patterns to work around
5008 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
5010 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
5011 caused bad assembly code to be generated.
5013 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
5015 * netbsd.h: Fix typo.
5017 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
5019 * config.sub: Fix typo.
5021 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
5023 * invoke.texi (Environment Variables): Typo: Change "ascpects"
5025 (Running Protoize): Typo: Change "ther" into "other".
5027 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
5029 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
5030 * m68k/netbsd.h: Likewise.
5031 * ns32k/netbsd.h: Likewise.
5032 * sparc/netbsd.h: Likewise.
5034 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
5036 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
5037 * ginclude/va-clipper.h (va_list): Likewise.
5039 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
5041 * rs6000.c (rs6000_override_options): If big endian and -Os, use
5042 load/store multiple instructions unless user overrides.
5044 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
5046 * ns32k/netbsd.h: Fix typo.
5048 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
5050 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
5051 labels with .debugsym if no parallel insns.
5053 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
5055 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
5056 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
5058 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
5060 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
5061 (AR_FOR_TARGET): Define.
5063 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
5065 * dyn-string.h: New file.
5066 * dyn-string.c: Likewise.
5067 * Makefile.in (OBJS): Add dyn-string.o.
5068 (dwarf2out.o): Add dyn-string.h dependency.
5069 (dyn-string.o): List dependencies.
5070 * dwarf2out.c: Include dyn-string.h.
5071 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
5072 (addr_const_to_string): Take a dyn_string_t, not a char* as a
5073 prototype. Use dyn_string_append rather than strcat, throughout.
5074 (addr_to_string): Use dyn_string_t.
5076 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
5078 Function entry/exit profiling instrumentation:
5079 * expr.h (profile_function_entry_libfunc,
5080 profile_function_exit_libfunc): Declare new variables.
5081 * optabs.c: Define them here.
5082 (init_optabs): Initialize them.
5083 * tree.h (struct tree_decl): New flag
5084 no_instrument_function_entry_exit.
5085 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
5086 * c-decl.c (duplicate_decls): Merge it.
5087 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
5088 (init_attributes): Use it for "no_instrument_function".
5089 (decl_attributes): Handle it, for functions that have not yet been
5090 compiled. Set decl flag.
5091 * flags.h (flag_instrument_function_entry_exit): Declare new
5093 * toplev.c (flag_instrument_function_entry_exit): Define it here.
5094 (f_options): New option "instrument-functions".
5095 * function.h (struct function): New field instrument_entry_exit.
5096 * function.c (current_function_instrument_entry_exit): New
5098 (push_function_context_to, pop_function_context_from): Save and
5100 (expand_function_start): Set current_ variable, maybe emit return
5101 label and entry profile call.
5102 (expand_function_end): Maybe emit exit profile call.
5104 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
5106 * i386.md (movqi): When optimizing a load of (const_int 1) into a
5107 NON_QI_REG_P, pretend the register is SImode.
5109 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
5111 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
5112 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
5113 manufacturer id for ns32k.
5114 * configure: Regenerated.
5115 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
5116 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
5117 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
5118 * config/m68k/netbsd.h: Same.
5119 * config/ns32k/netbsd.h: Same.
5120 * config/sparc/netbsd.h: Same.
5122 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
5124 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
5125 or UNROLL_COMPLETELY loop that starts with a jump to its
5128 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
5130 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
5131 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
5132 (print_operand, case 'B'): Don't fall through.
5133 (print_operand, case 'S'): Correct mask begin/end computation.
5134 Use HOST_BITS_PER_WIDE_INT.
5135 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
5136 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
5137 * rs6000/aix41.h (CPP_PREDEFINES): Same.
5138 * rs6000/aix43.h (CPP_PREDEFINES): Same.
5140 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
5142 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
5143 constraint from second alternative.
5145 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5147 * configure.in: Fix --without/--disable cases for local-prefix,
5148 gxx-include-dir and checking.
5150 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5152 * configure.in (enable_haifa): Set by default for sparc64 too.
5155 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5157 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
5158 * i386/winnt.c (associated_type): New fn.
5159 (i386_pe_valid_type_attribute_p): New fn.
5160 (i386_pe_check_vtable_importexport): Remove.
5161 (i386_pe_dllexport_p): Use associated_type.
5162 (i386_pe_dllimport_p): Likewise.
5164 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
5165 * i386.c (i386_valid_type_attribute_p): Also accept
5166 attributes for METHOD_TYPEs.
5168 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
5170 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
5172 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
5174 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
5176 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
5177 them from generating a new base name for each occurence of
5180 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
5182 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
5184 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
5188 * cplus-dem.c (type_kind_t): New type.
5189 (demangle_template_value_parm): Add type_kind_t parameter. Rely
5190 on this paramter, rather than demangling the type again.
5191 (demangle_integral_value): Pass tk_integral.
5192 (demangle_template_: Pass the value returned from do_type.
5193 (do_type): Return a type_kind_t. Pass tk_integral to
5194 demangle_template_value_parm for array bounds.
5195 (demangle_fund_type): Likewise.
5197 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
5199 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
5202 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
5204 * pa.c (move_operand): Accept CONSTANT_P_RTX.
5206 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
5208 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
5210 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
5213 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
5215 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
5216 (DEBUGGER_ARG_OFFSET): Likewise.
5218 * mn10300.md (movsf): Remove last change. Not needed.
5220 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
5222 * c-lex.c (yylex): Fix boundary conditions in character literal and
5223 string literal loops.
5225 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
5227 * longlong.h (count_leading_zeros): Sparclite scan instruction was
5228 being invoked incorrectly.
5230 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
5231 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
5233 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
5234 * configure.in: Added i[34567]86-*-win32
5235 * config.sub: Ditto.
5236 * configure: Rebuilt.
5238 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
5240 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
5241 the frame pointer and compiling PIC code and reload has not completed.
5243 * i386.c (output_to_reg): Add code to emulate non-popping DImode
5246 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
5248 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
5250 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
5252 * Makefile.in (install-info): Only try to update the info
5253 directory file if it exists in the first place.
5255 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
5257 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
5259 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
5261 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
5262 CONST_DOUBLE source.
5264 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
5266 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
5267 strings as the insertion of USER_LABEL_PREFIX.
5268 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
5270 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
5273 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
5275 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
5276 already defined type.
5278 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
5280 * expr.c (check_max_integer_computation_mode): Allow conversions
5281 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
5282 (expand_expr): Likewise.
5284 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5286 * expr.c (expand_expr): Expand RETURN_EXPR.
5288 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
5290 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
5292 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
5294 * dwarf2out.c (output_aranges): Call stripattributes
5295 for TEXT_SECTION references.
5296 (output_line_info): Likewise.
5298 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5300 * profile.c (branch_prob): Call allocate_reg_info after outputting
5301 profile rtl in instrument_arcs.
5303 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
5305 * fixinc.irix (math.h): Install wrapper instead of copying.
5307 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5309 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
5310 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
5311 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
5312 lang_flag_0. Added documentation in the flag table.
5314 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
5316 * cccp.c (do_include): Fix vax c style include handling.
5318 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5320 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
5322 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
5324 * fold-const.c (non_lvalue): Don't deal with null pointer
5326 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5328 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
5330 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
5331 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
5332 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
5333 (u_short_cint_operand): Same.
5334 (reg_or_cint_operand): Same.
5335 (logical_operand): Same.
5336 (input_operand): Same.
5337 (reg_or_short_operand): Use u_short_cint_operand.
5339 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
5341 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
5342 but keep the insns and splits. Adjust so when the ultimate destination
5343 is memory, use cvtql.
5345 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
5347 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
5349 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
5351 * gcc.c (do_spec): Call "error" not "warning".
5353 * configure.in: Fix minor problems with gas feature detection code.
5354 * configure: Rebuilt.
5356 * gcc.c (do_spec): Issue a warning for '%[]' usage.
5359 * gcc.c: Delete %[spec] support.
5360 (do_spec_1, case '('): Likewise.
5361 (do_spec_1, case '['): Call error.
5363 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
5365 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
5366 (CPP_SUBTARGET_SPEC): Default to empty string.
5367 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
5368 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
5369 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
5370 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
5372 * alpha/linux.h (CPP_PREDEFINES): Tidy.
5373 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
5374 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
5375 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
5376 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
5377 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
5378 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
5379 * alpha/vxworks.h: Likewise.
5381 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
5383 * mips.md (reload_outsi): Added missing REGNO call.
5384 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
5386 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
5387 another match_operator and compare the codes.
5389 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
5391 * MIPS multiply pattern fixes:
5392 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
5393 Add union classes for HI, LO, or HILO plus general registers.
5394 (GENERATE_MADD): Deleted.
5395 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
5396 Add TARGET_MAD to condition.
5397 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
5398 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
5399 "*d" for accumulator, to give preference to LO initially but not
5402 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
5404 * configure.in (enable_c_mbchar): New configure option.
5405 (extra_cpp_objs): Always available now.
5407 * cexp.y (mbchar.h): #include it.
5408 (yylex): Handle Multibyte characters in character literals.
5410 * cccp.c (mbchar.h): #include it.
5411 (main): Set character set based on LANG environment variable.
5412 (rescan): Handle multibyte characters in comments.
5413 (skip_if_group): See above.
5414 (validate_else): See above.
5415 (skip_to_end_of_comment): See above.
5416 (macarg1): See above.
5417 (discard_comments): See above.
5418 (rescan): Handle multibyte characters in string and character literals.
5419 (collect_expansion): See above.
5420 (skip_quoted_string): See above.
5421 (macroexpand): See above.
5422 (macarg1): See above.
5423 (discard_comments): See above.
5424 (change_newlines): See above.
5426 * c-lex.c (mbchar.h): #include it.
5427 (GET_ENVIRONMENT): New macro.
5428 (init_lex): Set character set based on LANG environment variable.
5429 (yylex): Handle multibyte characters in character literals.
5430 (yylex): Handle multibyte characters in string literals.
5432 * Makefile.in (mbchar.o): New target.
5433 (cccp$(exeext)): @extra_cpp_objs@ is always available.
5434 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
5436 * mbchar.[ch]: New files for multibyte character handling.
5438 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5440 * jump.c (jump_optimize): When simplifying noop moves and
5441 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
5442 the PUSHes to rewrite in second loop as we did in the first.
5444 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5446 * cplus-dem.c (demangle_nested_args): Make function definition
5447 static to match the prototype.
5449 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
5451 * alloca.c: Respect USE_C_ALLOCA.
5452 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
5453 * gengenrtl.c (xmalloc): Likewise.
5455 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
5457 * loop.h (struct induction): Add no_const_addval.
5458 * loop.c (the_movables, reg_address_cost): New variables.
5459 (init_loop): Init reg_address_cost.
5460 (loop_optimize): Call end_alias_analysis.
5461 (scan_loop): Init the_movables.
5462 (record_giv): Init induction->no_const_addval.
5463 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
5464 [REG]: Rearrange loop search test to catch more cases.
5465 (general_induction_var): Return success not benefit; take an extra
5466 argument for that. Change all callers.
5467 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
5468 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
5469 [default]: Search the_movables for additional combinations.
5470 (sge_plus_constant, sge_plus): New functions.
5471 (express_from_1): New function.
5472 (express_from): Always define. Rewrite using express_from_1.
5473 (combine_givs_p): Handle more cases. Ignore address cost.
5474 (cmp_combine_givs_stats): New function.
5475 (combine_givs_used_once, combine_givs_benefit_from): New functions.
5476 (combine_givs): Rewrite to do best-fit combination.
5478 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
5479 (fold): Do a complete (A*C)+(B*C) association check.
5481 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
5483 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
5485 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
5487 * mn10300.c (MODES_TIEABLE_P): Fix typo.
5489 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
5491 * tree.c (valid_machine_attribute): Only create a new type variant if
5492 there is a decl to use it.
5494 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
5496 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
5499 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
5501 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
5504 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
5506 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
5507 Simplify tests for clearing an address register.
5508 (expand_prologue): Corresponding changes.
5510 * mn10300.md (movXX patterns): Make sure the destination is an
5511 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
5512 (logical patterns): Split into expanders + patterns
5513 (zero and sign extension patterns): Similarly.
5514 (shift patterns): Similarly.
5516 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
5518 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
5519 for the sequence, recording base values.
5521 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
5523 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
5525 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
5527 * gcc.c: Remove ANSI-C ism from --help code.
5529 * toplev.c: Support --help with USE_CPPLIB.
5531 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
5533 * configure.in: Rework gas feature code to work with symlink based
5536 * extend.texi: Clarify some issues related to local variables
5537 assigned to explicit registers.
5539 * mn10300.md (mulsi): Turn into expander + pattern.
5541 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
5544 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
5546 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
5548 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
5550 * version.c: Bump again to distinguish mainline tree from the
5553 See ChangeLog.0 for earlier changes.
5556 add-log-time-format: current-time-string