1 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3 * configure.in: Call AC_FUNC_VFORK.
5 * collect2.c: Define VFORK_STRING as a printable string for
6 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
7 defined, include vfork.h. If VMS is defined, define vfork()
8 appropriately. Remove vfork check on USG, we're using autoconf.
9 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
10 checking locally what string to pass.
11 (scan_prog_file): Likewise.
12 (scan_libraries): Likewise.
14 * gcc.c: Remove vfork check on USG, we're using autoconf.
15 Besides, no calls to vfork/fork occur in this file.
17 * protoize.c: Likewise.
19 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
21 * configure.in (DEFAULT_LINKER): renamed from LD
22 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
23 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
26 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
28 * BUGS: fix the regexp for `more' to find the appropriate node.
29 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
31 * BUGS: added link to the WWW FAQ
33 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
35 * version.c: Bump for snapshot.
37 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
39 * From Christian Gafton:
40 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
41 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
42 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
44 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
46 * c-common.c (c_get_alias_set): Allow all type-punning through
47 unions. Don't get confused about the type of a bit-field, despite
48 the antics of build_modify_expr.
50 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
52 * fixinc.sco: Paramaterize #include_next values.
53 * fixinc/fixinc.sco: Likewise.
55 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
57 * toplev.c (rest_of_compilation): No longer set reload_completed.
58 * reload1.c (reload): Set it here. Perform instruction splitting
59 after reload has completed if we will be running the scheduler
62 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
64 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
65 EH region if exceptions are enabled and we're performing cross
67 (find_cross_jump): Exit loop if the insns are in different EH regions.
69 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
71 * dwarf2out.c (output_call_frame_info): Use
72 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
74 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
76 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
77 * c-common.c (check_format_info): Don't check for the 'x'
78 format character twice, instead check for 'x' and 'X'
80 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
82 * configure.in (assembler features): Also make gas is configured if
83 we find it in the souce tree.
85 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
87 * i386.c (i386_comp_type_attributes): Compare whether the
88 attributes are defined, not their tree nodes.
90 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
92 * configure.in (gxx_include_dir): bitten by autoconf quoting
96 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
98 * configure.in: Ignore non-absolute value in $AS.
100 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
102 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
104 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
106 * configure.in (msdosdjgpp): Set exeext and target_alias.
108 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
110 * flow.c (XNMALLOC): New macro.
111 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
113 (add_edge, add_edge_to_label): New static functions.
114 (free_bb_memory): New function.
115 (flow_delete_insn): Delete function.
116 (basic_block_drops_in): Delete variable.
117 (find_basic_blocks): Allocate and initialize basic_block_head,
118 basic_block_succ. Don't allocate basic_block_drops_in.
119 Call free_bb_memory at the beginning.
120 (find_basic_blocks_1): Don't do multiple passes.
121 Delete code to compute basic_block_drops_in.
122 After calling make_edges, mark blocks reached by current block live.
123 Update test for unreachable live blocks.
124 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
126 Simplify to call add_edge_to_label when a LABEL_REF is found.
127 (make_edges): Simplify to call add_edge_to_label instead of
128 mark_label_ref most of the time.
129 Compute here whether control drops into the next block.
130 (delete_unreachable_blocks): Return void. All callers changed.
131 Delete unreachable blocks in reverse order.
132 After deleting all unreachable blocks, renumber the remaining ones
133 and update n_basic_blocks.
134 (delete_block): Speed up deletion a bit.
135 Don't set basic_block_drops_in for deleted blocks.
136 (free_basic_block_vars): Don't free basic_block_drops_in.
137 (life_analysis_1): Update to use new edge representation.
138 (dump_flow_info): Delete code to print basic block info; call
139 dump_bb_data instead.
140 (compute_preds_succs): Delete code to recompute basic_block_drops_in
141 and uid_block_number.
142 Simply copy the previously computed cfg.
143 (dump_bb_data): New arg LIVE_INFO. All callers changed.
144 Print register lifetime information if LIVE_INFO is nonzero.
145 * basic-block.h (dump_bb_data): Adjust prototype.
146 * gcse.c (gcse_main): Update call to dump_bb_data.
147 * rtl.h (free_bb_memory): Declare.
148 * toplev.c (rest_of_compilation): Call free_bb_memory.
150 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
151 (update_eliminable_offsets): Don't compute it.
152 (set_initial_elim_offsets): Don't initialize it.
153 Break out some code into set_initial_label_offsets so the rest of
154 this function can be called from reload_as_needed.
155 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
156 ELIMINABLE_REGS isn't.
157 (set_initial_label_offsets): New function, broken out of
158 set_initial_elim_offsets.
159 (set_offsets_for_label): New function, broken out of set_label_offsets
160 and reload_as_needed.
161 (reload): Call the two new functions.
162 (reload_as_needed): Call set_initial_elim_offsets instead of
163 duplicating the code. Likewise for set_offsets_for_label.
165 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
166 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
167 any hard reg, reg_reloaded_dead contains valid data.
169 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
171 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
172 "stdcall" and "cdecl" attributes.
174 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
176 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
177 handle deleted no-op moves of hard registers.
178 * haifa-sched.c (update_flow_info): Likewise.
180 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
182 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
183 of the sequences to reload the HILO register which do not actually
186 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
188 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
190 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
192 * except.c (emit_eh_context): Make the EH context register stay alive
193 at -O0 so stupid.c doesn't get confused.
195 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
197 * emit-rtl.c (try_split): Do not try to split a BARRIER.
199 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
200 Jeffrey A Law (law@cygnus.com)
202 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
203 (zero_extendsidi2): Use # in output template and handle completely by
205 (zero_extend splitters): New define_splits.
206 (ashiftrt_32): New pattern.
208 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
210 * tree.c (append_random_chars): New fn.
211 (get_file_function_name_long): Use it.
213 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
215 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
216 (LIBCPP_OBJS): New. Add cppulp.o.
217 (cppmain, fix-header): Depend on and use libcpp.a.
218 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
219 of the individual object files.
220 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
223 * cccp.c (user_label_prefix): New.
224 (main): Set it off -f*leading-underscore.
225 (special_symbol): Use it.
226 * cpplib.c (special_symbol): Likewise.
227 (cpp_handle_option): Handle -f*leading-underscore.
228 * cppulp.c: New file.
230 * output.h (user_label_prefix): Declare it.
231 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
232 * toplev.c (f_options, main): Handle -f*leading-underscore.
234 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
235 referencing USER_LABEL_PREFIX directly.
236 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
237 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
238 * final.c (asm_fprintf): Use user_label_prefix instead.
239 * arm/thumb.c (thumb_print_operand): Likewise.
241 * gcc.c (default_compilers): Pass -f*leading-underscore on to
242 cpp wherever appropriate.
244 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
246 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
247 specific compiler switches.
249 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
251 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
254 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
256 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
257 structure which has exactly the members provided by EXTRA_SPECS.
258 Xmalloc() the real `extra_specs', and initialize it from this
259 intermediate structure.
261 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
263 * mips.h (EXTRA_SPECS): Likewise.
265 * sparc.h (EXTRA_SPECS): Likewise.
267 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
269 * function.c (purge_addressof_1): Instead of aborting when a
270 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
271 work just put the ADDRESSOF on stack. Otherwise remember all such
272 successfull replacements, so that exactly the same replacements
273 can be made on the REG_NOTEs. Remove the special case for CALL
275 (purge_addressof_replacements): New variable.
276 (purge_addressof): Clear it at end.
278 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
280 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
281 (lang_init): Call check_newline always.
282 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
283 cpp_start_read, set yy_cur and yy_lim to read from
284 parse_in.token_buffer, so that we'll see the first #line
286 * cpplib.c (cpp_start_read): finclude the main input file
287 before processing -include/-imacros. Process -imacros and
288 -include separately, and handle -include by stacking a
289 buffer for the file in question as if it'd been #included.
290 * toplev.c (documented_lang_options) Recognize -H when
293 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
295 * cpplib.c: Merge do_once into do_pragma. Break file handling
296 code out of do_include.
297 Move append_include_chain, deps_output,
298 file_cleanup, redundant_include_p, import_hash,
299 lookup_import, add_import, read_filename_string, read_name_map,
300 open_include_file, finclude, safe_read to cppfiles.c.
301 Move prototypes for deps_output, append_include_chain,
302 finclude to cpplib.h. Move definition of struct
303 file_name_list there also.
305 * cppfiles.c: New file. Contains all the above functions
306 broken out of cpplib.c; also hack_vms_include_specification
307 from cccp.c and find_include_file, a new function broken out of
310 * Makefile.in (cppmain): Depend on cppfiles.o.
311 (fix-header): Likewise.
312 (cppfiles.o): New target.
313 * configure.in (--enable-c-cpplib): Add cppfiles.o to
314 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
316 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
318 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
319 if pending_types is non-zero.
320 (dwarfout_finish): Verify pending_types is zero before finishing.
322 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
324 * expr.c (convert_move): Use shifts to perform the move if a
325 suitable extend pattern cannot be found. Code written by
326 Richard Henderson <rth@cygnus.com>.
328 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
330 * regclass.c (renumber, regno_allocated): New static variables, moved
331 out of allocate_reg_info.
332 (allocate_reg_info): Move these two variables outside the function.
333 Move code to free memory into new function free_reg_info.
334 (free_reg_info): New function, broken out of allocate_reg_info.
335 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
336 * rtl.h (allocate_reg_info): Don't declare.
337 (free_reg_info): Declare.
339 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
341 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
343 * toplev.c (compile_file): Temporarily revert last change.
345 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
347 * c-typeck.c (convert_for_assignment): Parenthesize.
349 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
351 * reload1.c (delete_output_reload): Avoid ambigous else.
353 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
355 * toplev.c (compile_file): Call allocate_reg_info to free register
357 * rtl.h (allocate_reg_info): Declare.
359 * PROJECTS: Remove entry for local spilling.
361 * final.c (cleanup_subreg_operands): New function.
362 (final_scan_insn): Use it.
363 (alter_subreg): Clear the "used" field when we turn a SUBREG into
365 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
366 operands when reload has finished.
367 * reload.h (cleanup_subreg_operands): Declare..
368 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
369 reload. Handled in reload itself.
371 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
373 * reload1.c (verify_initial_offsets): New function.
374 (reload): Call it after reload_as_needed. Also verify that the frame
375 size stays constant during reload_as_needed.
376 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
378 * reload.h (struct insn_chain): Add need_operand_change element.
379 * reload1.c (new_insn_chain): Clear it.
380 (calculate_needs_all_insns): Set it; don't overload need_reload.
381 (reload_as_needed): Use it.
383 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
384 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
385 and reload_address_index_reg_class.
386 (find_reloads_address_1): Likewise.
387 * reload.h (reload_address_base_reg_class,
388 reload_address_index_reg_class): Don't declare.
389 * reload1.c (reg_old_renumber, pseudo_previous_regs,
390 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
391 (used_spill_regs): Now static.
392 (reload_address_base_reg_class, reload_address_index_reg_class,
393 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
394 basic_block_needs, max_needs, group_size, group_mode, max_groups,
395 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
398 (init_reload): Delete code to compute base/index reg classes.
399 (reload): Delete variable J.
400 Delete code to manage basic_block_needs.
401 Don't compute regs_explicitly_used.
402 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
403 pseudo_previous_regs.
404 Initialize bad_spill_regs_global.
405 Don't call order_regs_for_reload here.
406 Don't initialize spill_reg_order and n_spills.
407 Don't forbid explicitly used regs to be used for spill regs.
408 Change main loop to infinite loop, with explicit break statements.
409 Make SOMETHING_CHANGED variable local to that loop.
410 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
411 max_groups_insn, max_nongroups_insn, group_size, group_mode.
412 Make sure spilled_speudos is cleared before calling spill_hard_reg or
414 Don't call dump_needs.
415 Delete code to reset potential_reload_regs.
416 Delete code to terminate loop conditional on the global needs variables
417 showing no further needs.
418 (calculate_needs_all_insns): Return void. All callers changed.
419 Initialize somehing_needs_elimination here, not in reload.
420 Delete avoid_return_reg kludge.
421 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
423 Initialize the group_mode and group_size elements of the arg CHAIN.
424 Delete code to manage basic_block_needs.
425 Operate on elements of CHAIN instead of global variables.
426 Delete avoid_return_reg kludge.
427 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
429 Operate on elements of CHAIN instead of global variables.
430 Delete special SMALL_REGISTER_CLASSES code.
431 Delete spill_failure code; now in new_spill_reg.
432 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
434 Operate on elements of CHAIN instead of global variables.
435 (maybe_mark_pseudo_spilled): New static function.
436 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
438 Operate on elements of CHAIN instead of global variables.
439 Call order_regs_for_reload here, not in reload.
440 Initialize spill_reg_order and n_spills.
441 Simplify test whether an asm insn is involved.
442 Delete spill_failure code; now in new_spill_reg.
443 Call maybe_mark_pseudo_spilled for everything marked as live in
444 CHAIN. Merge CHAIN's used_spill_regs into the global variable
446 (dump_needs): Take CHAIN arg. No longer static, to prevent the
447 compiler from optimizing this function (now unused) away.
448 Operate on elements of CHAIN instead of global variables.
449 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
451 Operate on elements of CHAIN instead of global variables.
452 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
453 take CHAIN arg. All callers changed.
454 Operate on elements of CHAIN instead of global variables.
455 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
456 CHAIN, NONGROUP args. Return void. All callers changed.
457 Verify caller isn't trying to spill a pseudo.
458 Simplify test for illegal reg, just use bad_spill_regs.
459 Generate better error messages.
460 Operate on elements of CHAIN instead of global variables.
461 Mark spilled register in CHAIN's used_spill_regs element.
462 Don't call spill_hard_reg.
463 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
464 Mark spilled hard regs in bad_spill_regs_global.
465 Mark affected pseudos in spilled_pseudos, but don't spill them.
466 (ior_hard_reg_set): New static function.
467 (finish_spills): Return int. All callers changed.
468 Compute spill_reg_order, n_spills and spill_regs here. Also update
469 regs_ever_live for regs used as spills.
470 For every pseudo in spilled_pseudos, spill it and mark the previous
471 hard reg it had in pseudo_previous_regs. Compute which hard regs
472 arseudo): New static function.
473 (order_regs_for_reload): Take CHAIN arg. All callers changed.
474 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
475 hard registers explicitly used across the current insn into the set.
476 Compute hard_reg_n_uses taking only pseudos live across this insn
478 Tweak sorting of potential_reload_regs.
479 (compare_spill_regs): Delete function.
480 (reload_as_needed): Don't sort the spill_regs array, it's computed
481 in proper order in finish_spills.
482 Delete avoid_return_reg kludge.
483 Delete code to manage basic_block_needs.
484 (allocate_reload_reg): Minor speed/readability tweaks.
485 Operate on elements of CHAIN instead of global variables.
486 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
487 Delete avoid_return_reg kludge.
488 Initialize reload_reg_used from CHAIN's used_spill_regs element.
489 Delete unused label FAIL.
490 (reload_combine): Replce reload_address_index_reg_class with
492 Don't use used_spill_regs to determine information about lifetime of
495 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
497 * toplev.c (display_help): Ignore empty target specific
498 options, and if -W is also specified on the command line then
499 display undocumented options.
501 * config/arm/arm.c: Updated with changes in devo sources.
502 * config/arm/arm.h: Updated with changes in devo sources.
503 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
504 * config/arm/lib1thumb.asm: Add ELF support.
506 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
508 * collect2.c (aix64_flag): New variable.
509 (main, case 'b'): Parse it.
510 (GCC_CHECK_HDR): object magic number must match mode.
511 (scan_prog_file): Only check for shared object if valid header.
512 Print debugging if header/mode mismatch.
514 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
516 Added support for arm-elf-linux configuration, submitted by Philip
517 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
518 code developed by Catherine Moore <clm@cygnus.com>. The following
521 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
524 * configure: Regenerated.
526 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
527 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
528 definitions conditional on their not having been already defined.
530 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
531 and .type directives, and add "(PLT)" qualification to function
534 * config/arm/linux.h: Deleted. This file is now superceeded by
535 either linux-elf.h or linux-aout.h.
537 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
538 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
540 Move definitions from old linux.h file here.
542 * config/arm/elf.h: New file. Generic ARM/ELF support.
544 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
546 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
548 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
549 using the 26bit APCS.
551 * config/arm/unknown-elf.h: New file. Support for OS'es other
554 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
557 * config/arm/coff.h: Include aout.h for basic assembler macros.
558 Add support for -mstructure_size_boundary=<n> command line option.
560 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
561 command line option. Make macro definitions conditional on their
562 not having been already defined.
564 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
568 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
570 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
571 has been changed to not include a newline. Use this macro instead.
572 (output_enumeral_list, const_value_attribute, name_attribute,
573 comp_dir_attribute, prototyped_attribute, producer_attribute,
574 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
575 dwarfout_file_scope_decl, generate_new_sfname_entry,
576 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
577 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
579 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
581 * combine.c (subst): Process the inputs to a parallel asm_operands
584 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
586 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
588 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
590 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
592 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
594 * version.c: Bump for snapshot.
596 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
598 * stmt.c (expand_fixup): Set fixup->before_jump to a
599 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
601 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
603 * Makefile.in (recog.o): Depend on toplev.h.
604 (insn-emit.o): Depend on recog.h.
605 (insn-peep.o): Depend on recog.h and insn-config.h.
607 * combine.c (simplify_set): Remove unused variable `scratches'.
609 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
610 and `idx' in macro conditional controlling their use.
612 * genemit.c (main): Make the generated output file include
613 recog.h. Don't have it declare `insn_operand_constraint', since
614 we get it from recog.h.
616 * genpeep.c (main): Make the generated output file include
617 insn-config.h and recog.h.
619 * recog.c: Include toplev.h.
620 (extract_insn): Remove unused variable `p'.
622 * regclass.c (fix_register): Add missing braces around initializer
624 (allocate_reg_info): Move variable `i' into the scope where it is
625 used. Change its type to `size_t'.
627 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
629 * reload.c (push_reload): When merging reloads, make sure
630 that reload_in_reg and reload_in are from the same reload in
633 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
635 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
636 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
638 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
640 * loop.c (loop_has_tablejump): New variable.
641 (prescan_loop): Scan for it.
642 (insert_bct): Replace explicit scan with use of it.
643 * regclass.c (regclass): Restore loop variable j.
644 (record_reg_classes): Deterine op_types modifiers and initialize
645 classes[i] before matching constraints. Handle matching
648 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
650 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
653 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
655 * mips.h (EXTRA_SPECS): Add missing initializers.
657 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
659 * sparc.h (EXTRA_SPECS): Add missing initializers.
660 (sparc_defer_case_vector): Provide a prototype.
662 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
663 comparing it to the result of a pointer subtraction.
665 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
667 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
668 the argument to (unsigned char).
670 * alpha.h (EXTRA_SPECS): Add missing initializers.
671 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
674 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
676 * flow.c (life_analysis_1): Enable "rescan" code after reload.
677 (propagate_block): Delete dead code after reload.
679 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
680 back Oct 15, 1998 change.
681 * haifa-sched.c (update_flow_info): Likewise.
682 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
684 * mn10200.md (truncated shift): Accept constant inputs too.
686 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
688 * machmode.h (mode_mask_array): No longer const.
689 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
691 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
693 * frame.c: Somewhat explain `FDE'.
694 Suggested by Brendan Kehoe
696 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
698 * expr.c (pending_chain): Move up.
699 (save_expr_status): Do save pending_chain.
700 (restore_expr_status): And restore it.
701 * function.h (struct function): Add pending_chain.
703 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
705 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
706 did not match the code.
708 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
710 * regclass.c (regclass): Break out some code into new function
711 scan_one_insn, and into regclass_init.
712 (init_cost): New static variable, moved out of regclass.
713 (regclass_init): Initialize it here, not in .
714 (scan_one_insn): New static function, broken out of regclass.
715 * recog.c (apply_change_group): Break out some code into new
716 function insn_invalid_p.
717 (insn_invalid_p): New static fn, broken out of apply_change_group.
719 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
721 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
722 reg_reloaded_contents matches incremented pseudo.
724 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
726 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
728 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
729 addressing modes with side effects. These are currently
730 placeholders for the C4x target.
732 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
734 * loop.c (express_from): Make sure that when generating a PLUS of
735 a PLUS, any constant expression appears on the outermost PLUS.
737 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
739 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
740 works if "$(srcdir)" != ".".
742 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
744 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
745 existing SUBREG if we can, otherwise abort.
747 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
749 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
750 `restrict' is applied to a non-pointer variable.
752 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
754 * invoke.texi: Document -flang-isoc9x.
756 * Makefile.in (OBJS): Add splay-tree.o.
757 (c-common.o): Depend on rtl.h.
758 (splay-tree.o): List dependencies and provide build rule.
760 * rtl.h (record_alias_subset): New function.
761 * alias.c: Include splay-tree.h.
762 (alias_set_entry): New type.
763 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
764 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
765 (mems_in_disjoin_alias_sets_p): New function.
766 (alias_set_compare): Likewise.
767 (insert_subset_children): Likewise.
768 (get_alias_set_entry): Likewise.
770 * tree.h (TYPE_RESTRICT): New macro.
771 (TYPE_UNQUALIFIED): New manifest constant.
772 (TYPE_QUAL_CONST): Likewise
773 (TYPE_QUAL_VOLATILE): Likewise.
774 (TYPE_QUAL_RESTRICT): Likewise.
775 (tree_type): Add restrict_flag. Reduce count of free bits.
776 (DECL_POINTER_ALIAS_SET): New macro.
777 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
778 (tree_decl): Add pointer_alias_set.
779 (build_qualified_type): New function.
780 (build_type_variant): Define in terms of build_qualified_type.
781 * tree.c (set_type_quals): New function.
782 (make_node): Initializae DECL_POINTER_ALIAS_SET.
783 (build_type_attribute_variant): Use build_qualified_type and
785 (build_type_variant): Rename, and modify, to become...
786 (build_qualified_type): New function.
787 (build_complex_type): Use set_type_quals.
789 * c-tree.h (C_TYPE_OBJECT_P): New macro.
790 (C_TYPE_FUNCTION_P): Likewise.
791 (C_TYPE_INCOMPLETE_P): Likewise.
792 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
793 (c_apply_type_quals_to_decl): New function.
794 (c_build_qualified_type): New function.
795 (c_build_type_variant): Define in terms of c_build_qualified_type.
796 (flag_isoc9x): Declare.
797 * c-typeck.c (qualify_type): Use c_build_qualified_type.
798 (common_type): Change to use TYPE_QUALS.
799 (comptypes): Likewise.
800 (convert_for_assignment): Likewise.
801 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
802 * c-decl.c (flag_isoc9x): Define.
803 (c_decode_option): Handle -flang-isoc9x.
804 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
805 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
806 * c-lex.c (init_lex): Deal with restrict.
807 (init_lex): Don't treat restrict as a reserved word in
808 -traditional mode, or without -flang-isoc9x.
809 * c-lex.h (rid): Add RID_RESTRICT.
810 * c-parse.gperf (restrict, __restrict, __restrict__): Make
811 equivalent to RID_RESTRICT.
812 * c-parse.in (TYPE_QUAL): Update comment.
813 * c-common.c: Include rtl.h.
814 (c_find_base_decl): New function.
815 (c_build_type_variant): Rename, and modify, to become ...
816 (c_build_qualified_type): New function.
817 (c_apply_type_quals_to_decl): Likewise.
818 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
819 a particular alias set for the reference.
820 * toplev.c (documented_lang_options): Add -flang-isoc9x.
822 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
824 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
825 command line switches.
827 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
829 * reload.c (loc_mentioned_in_p): Add missing braces to bind
832 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
834 * gcc.c (option_map): Added --classpath and --CLASSPATH.
836 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
838 * regclass.c (fix_register): Add error message.
839 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
842 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
844 * c-decl.c (warn_missing_noreturn): New global variable.
845 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
846 (finish_function): Implement missing noreturn warning.
848 * c-tree.h (warn_missing_noreturn): Declare extern.
850 * invoke.texi: Document new flags.
852 * toplev.c (documented_lang_options): Add description.
854 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
856 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
857 loop optimization stable for the C4x.
858 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
859 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
860 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
862 (c4x_address_conflict): Be more paranoid when packing a volatile
863 memref in a parallel load/store.
865 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
867 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
868 repeat_block_filler): Deleted.
869 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
870 Condition code not set if destination register from 'c' class.
871 (*subbqi3_carry_clobber): Fix typo.
873 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
875 * reorg.c (steal_delay_list_from_target) Check for insns that
876 modify the condition codes and effect the direction of the jump
879 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
881 * function.c (purge_addressof_1): Replace call to
882 emit_insns_before() with emit_insn_before().
884 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
886 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
888 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
890 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
892 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
894 * gcse.c (compute_hash_table): Correctly identify hard regs which are
895 clobbered across calls.
897 * loop.c (scan_loop): Be more selective about what invariants are
900 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
902 * version.c: Bump for snapshot.
904 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
906 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
907 static eh_context structure.
909 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
911 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
913 (try_combine): Don't update max_scratch.
914 * flow.c (max_scratch, num_scratch): Delete variables.
915 (life_analysis_1): Don't initialize max_scratch.
916 (propagate_block): Don't update max_scratch.
917 (mark_set_1): Don't increment num_scratch.
918 * regs.h (max_scratch): Delete declaration.
920 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
922 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
923 is nonzero. This is temporary!
925 * sched.c (update_flow_info): Handle death notes made invalid by
926 instruction splitting. Partially reverts Oct 15, 1998 patch.
927 * haifa-sched.c (update_flow_info): Likewise.
929 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
931 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
932 if it has a nonzero DECL_INITIAL.
934 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
936 * Makefile.in (flow.o): Depend on recog.h.
938 * cpplib.h (directive_table): Add missing initializiers.
939 (finclude): Change type of variable `bsize' to size_t.
941 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
943 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
945 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
946 `int' when comparing against one.
947 (cpp_file_line_for_message): Mark parameter `pfile' with
949 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
951 * flow.c: Include recog.h.
952 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
954 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
955 `f' with ATTRIBUTE_UNUSED.
956 (reposition_prologue_and_epilogue_notes): Likewise.
958 * genopinit.c (gen_insn): Cast argument of ctype functions to
961 * haifa-sched.c: Include recog.h.
962 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
963 comparing against one.
965 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
967 * mips-tfile.c (parse_end): Cast the argument of ctype function to
969 (parse_ent): Likewise.
970 (parse_input): Likewise.
972 * optabs.c (init_libfuncs): Likewise.
974 * protoize.c (find_rightmost_formals_list): Likewise.
976 * recog.h (const_double_operand): Fix typo in prototype.
978 * tlink.c (scan_linker_output): Cast the argument of ctype
979 function to `unsigned char'.
981 * toplev.c (check_lang_option): Cast the result of `strlen' to
982 `int' when comparing against one.
984 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
986 * gcse.c (dump_cuid_table): Correct typo.
988 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
990 * toplev.c (display_help): Prepend '-m' to target specific
992 (check_lang_option): Ignore text after end of first word of a
993 language specific option.
995 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
997 * reload1.c (reg_used_by_pseudo): New static variable.
998 (choose_reload_regs): Initialize it.
999 Use it instead of testing spill_reg_order to determine whether a
1000 pseudo is live in a hard register across the current insn.
1001 Fix a typo in a reference to reload_reg_rtx.
1003 * flow.c (propagate_block): Replace code that computes and uses
1004 regs_sometimes_live with simpler code that just walks the set of
1005 currently live registers.
1007 * Makefile.in (insn-extract.o): Fix dependencies.
1008 * genextract.c (main): Generate includes for insn-config.h and
1010 Delete generation of declarations which are now in recog.h.
1011 * genrecog.c (main): Delete generation of definitions which are
1013 * local-alloc.c (block_alloc): Use extract_insn and the variables
1014 it sets up instead of looking up values by insn_code.
1015 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
1016 recog_dup_num): Define here instead of generating the definition in
1018 (recog_n_operands, recog_n_dups, recog_n_alternatives,
1019 recog_operand_mode, recog_constraints, recog_operand_address_p):
1021 (extract_insn): New function.
1022 * recog.h (extract_insn): Declare function.
1023 (which_alternative, recog_n_operands, recog_n_dups,
1024 recog_n_alternatives, recog_operand_mode, recog_constraints,
1025 recog_operand_address_p): Declare variables.
1026 * regclass.c (n_occurrences): New static function.
1027 * reload.c (n_occurrences): Delete function.
1028 (find_reloads): Use extract_insn.
1029 * reload.h (n_occurrences): Delete declaration.
1031 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
1033 * reload1.c (reload_as_needed): Fix test for when to call
1034 update_eliminable_offsets.
1036 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1038 Fix consistency problems with reg_equiv_{mem,address};
1039 Improve reload inheritance;
1041 * reload.c (reload_out_reg): New variable.
1042 (loc_mentioned_in_p, remove_address_replacements): New functions.
1043 (remove_replacements): Deleted.
1044 (push_reload): Set reload_out_reg[i].
1045 When merging, also set reload_{in,out}_reg[i], and remove
1046 duplicate address reloads.
1047 (combine_reloads): Copy reload_out_reg[i].
1048 (find_reloads): Do make_memloc substitution also when
1049 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1051 Include *recog_operand_loc in commutativity operand changes.
1052 Generate optional output reloads.
1053 Delete reference to n_memlocs. Don't set *recog_operand_loc before
1054 processing operands. Call make_memloc in reg_equiv_address code.
1055 Set *recog_operand_loc only after processing operands, and only
1056 if replace is true. Return a value.
1057 When changing address reload types for operands that didn't get
1058 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
1059 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
1060 Don't emit USEs for pseudo SUBREGs when not replacing.
1061 (find_reloads_address): Do make_memloc substitution also when
1062 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1064 (find_reloads_toplev): Likewise.
1065 Call make_memloc in reg_equiv_address code.
1066 (debug_reload_to_stream): Add code to output reload_out_reg.
1067 (make_memloc): Delete local variable i, ifdefed out code, and
1068 references to memlocs and n_memlocs.
1069 (memlocs, n_memlocs): Delete.
1070 (push_secondary_reload): Clear reload_out_reg.
1071 (find_reloads_address_1): Provide memrefloc argument to all calls
1072 to find_reloads_address.
1073 In AUTO_INC code, handle non-directly addressable equivalences properly.
1074 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
1075 (find_reloads): Add return type.
1076 (remove_address_replacements, deallocate_reload_reg): Declare.
1077 * reload1.c (num_not_at_initial_offset): No longer static.
1078 (delete_address_reloads, delete_address_reloads_1): Likewise.
1079 (deallocate_reload_reg): New function.
1080 (spill_reg_stored_to): New array.
1081 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
1082 (eliminate_regs_in_insn): Move assignments of previous_offset and
1083 max_offset fields, and recalculation of num_not_at_initial_offset
1084 into new static function:
1085 (update_eliminable_offsets) .
1086 (reload_as_needed): Call update_eliminable_offsetss after calling
1088 Call forget_old_reloads_1 with contents of reloaded auto_inc
1089 expressions if the actual addressing can't be changed to match the
1091 (choose_reload_regs): For inheritance, replace
1092 reload_reg_free_before_p test with reload_reg_used_at_all test, and
1093 remove stand-alone reload_reg_used_at_all test.
1094 Use reload_out_reg to determine which reload regs have output reloads.
1095 Treat reload_override_in more similar to inherited reloads.
1096 Handle (subreg (reg... for inheritance.
1097 For flag_expensive_optimizations, add an extra pass to remove
1098 unnecessary reloads from known working inheritance.
1099 Delete obsolete code for pseudos replaced with MEMs.
1100 Handle inheritance from auto_inc expressions.
1101 (emit_reload_insns): If reload_in is a MEM, set OLD to
1103 Don't reload directly from oldequiv; if it's a pseudo with a
1104 stack slot, use reload_in[j].
1105 Check that reload_in_reg[j] is a MEM before replacing reload_in
1106 from reg_reloaded_contents.
1107 Include non-spill registers in reload inheritance processing.
1108 Also try to use reload_out_reg to set spill_reg_store /
1109 reg_last_reload_reg.
1110 In code to set new_spill_reg_store, use single_set to find out if
1111 there is a single set.
1112 Add code that allows to delete optional output reloads.
1113 Add code to allow deletion of output reloads that use no spill reg.
1114 At the end, set reload_override_in to oldequiv.
1115 Also call delete_output_reload if reload_out_reg is equal to old
1117 Add code to call delete_output_reload for stores with no matching load.
1118 Set / use spill_reg_stored_to.
1119 Handle case where secondary output reload uses a temporary, but
1120 actual store isn't found.
1121 When looking for a store of a value not loaded in order to call
1122 delete_output_reload, count_occurences should return 0 for no
1123 loads; but discount inherited input reloadill_reg_stored_to.
1124 Do checks for extra uses of REG. Changed all
1126 Use delete_address_reloads.
1127 (reload): Take return value of find_reloads into account.
1128 If a no-op set needs more than one reload, delete it.
1129 (reload_reg_free_before_p): RELOAD_FOR_INPUT
1130 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
1131 for the same operand.
1132 (clear_reload_reg_in_use): Check for other reloads that keep a
1134 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
1135 RELOAD_FOR_OPADDR_ADDR.
1136 Take into account when an address address reload is only needed
1137 for the address reload we are considering.
1138 (count_occurrences): Use rtx_equal_p for MEMs.
1139 (inc_for_reload): Return instruction that stores into RELOADREG.
1140 New argument two, IN, and rtx. Changed all callers.
1141 (calculate_needs_all_insns, reload_as_needed):
1142 Don't clear after_call for a CLOBBER.
1143 Keep track of how many hard registers need to be copied from
1144 after_call, and don't clear after_call before we have seen
1145 that much copies, or we see a different instruction.
1147 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
1149 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
1150 after reload has completed.
1152 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
1154 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
1155 a macro name and the next token with a single blank if that whitespace
1156 is in a macro buffer and the next token is not '('.
1158 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
1160 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
1162 (skip_if_group): Ditto.
1163 (skip_to_end_of_comment): Ditto.
1165 (discard_comments): Ditto.
1166 (change_newlines): Ditto.
1168 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
1170 * c-lex.c (yylex): Fix unaligned access of wchar_t.
1172 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
1174 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
1175 (TARGET_OPTIONS): Add --help documentation.
1177 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1179 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
1181 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
1183 * fixinc/* Moved in from ../contrib directory in preparation
1184 for integrating it into the normal build process. In particular,
1185 fixinc/Makefile.in must be config-ed into the build directory
1186 as fixinc/Makefile. Proposed patches to ./Makefile.in and
1187 ./configure.in will be "in the mail" momentarily.
1189 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
1191 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
1192 accidently walk into the free list. Comment how that can happen.
1193 (invalidate): Fix indentation.
1195 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1196 Jeffrey A Law (law@cygnus.com)
1198 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
1199 reload. Never perform rescans of the insn chain after reload.
1200 (propagate_block): Do not delete insn or create new autoinc addressing
1203 * jump.c (jump_optimize): Unconditionally use the code that was
1204 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
1205 * reload1.c (reload): When reloading is finished, delete all
1206 REG_DEAD and REG_UNUSED notes.
1207 (emit_reload_insns): Delete all code that was conditional on
1208 PRESERVE_DEATH_INFO_REGNO_P.
1209 (no_longer_dead_regs): Delete variable.
1210 (reload_cse_delete_death_notes): Delete function.
1211 (reload_cse_no_longer_dead): Delete function.
1212 (reload_cse_regs_1): Delete all code to handle deletion of death
1214 (reload_cse_noop_set_p): Likewise.
1215 (reload_cse_simplify_set): Likewise.
1216 (reload_cse_simplify_operands): Likewise.
1217 (reload_cse_move2add): Likewise.
1218 * reorg.c (used_spill_regs): Delete declaration.
1219 (max_label_num_after_reload): Delete declaration.
1220 (find_dead_or_set_registers): Don't assume that spill regs are
1221 dead at a CODE_LABEL.
1222 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
1224 * sched.c (sched_analyze_insn): Likewise.
1225 (update_flow_info): Likewise.
1226 * haifa-sched.c (sched_analyze_insn): Likewise.
1227 (update_flow_info): Likewise.
1228 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
1229 * toplev.c (max_label_num_after_reload): Delete variable.
1230 (rest_of_compilation): Don't set max_label_num_after_reload.
1231 Call life_analysis after reload_cse_regs if optimizing.
1232 * config/gmicro/gmicro.h: Delete comment referring to
1233 PRESERVE_DEATH_INFO_REGNO_P.
1234 * config/i386/i386.h: Likewise.
1235 * config/m88k/m88k.h: Likewise.
1236 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
1237 * config/sh/sh.h: Likewise.
1239 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
1241 * loop.c (strength_reduce): Restore marking bct_p as
1243 * rs6000.c (optimization_options): Change #ifdef HAIFA to
1244 HAVE_decrement_and_branch_on_count.
1245 (small_data_operand): Remove TARGET_ELF condition for marking
1246 parameters ATTRIBUTE_UNUSED.
1248 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
1250 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
1251 (SELECT_SECTION): Resync with svr4.h.
1253 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
1255 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
1258 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
1260 * c-pragma.c (handle_pragma_token): Test for null tree before
1261 dereferencing TREE_CODE.
1263 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1265 * config/c4x/c4x.c: Convert to use GEN_INT.
1266 (c4x_parallel_process): Rework to handle new repeat loop structure.
1268 * config/c4x/c4x.md: Convert to use GEN_INT.
1269 (rptb_end): Convert to use GE test. Replace uses with clobbers.
1270 (decrement_and_branch_on_count): Likewise.
1272 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
1273 loop.c has the desired functionality.
1274 (rc_reg_operand): New prototype.
1276 * config/c4x/t-c4x: Can now build all front ends.
1278 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
1280 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
1282 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
1284 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
1285 * config/t-rtems: Do not install assert.h -- use newlib's.
1287 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1289 * combine.c (combine_instructions): When finished, call init_recog.
1290 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
1292 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
1294 * toplev.c: If flag_syntax_only, don't open or write assembler file.
1296 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1298 * cppalloc.c (memory_full): Mark function prototype with
1301 * demangle.h (collect_exit): Likewise.
1303 * fix-header.c (v_fatal, fatal): Likewise.
1305 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
1308 * gcov.c (print_usage): Likewise.
1310 * genattr.c (fatal, fancy_abort): Likewise.
1312 * genattrtab.c (fatal, fancy_abort): Likewise.
1314 * gencodes.c (fatal, fancy_abort): Likewise.
1316 * genconfig.c (fatal, fancy_abort): Likewise.
1318 * genemit.c (fatal, fancy_abort): Likewise.
1320 * genextract.c (fatal, fancy_abort): Likewise.
1322 * genflags.c (fatal, fancy_abort): Likewise.
1324 * genopinit.c (fatal, fancy_abort): Likewise.
1326 * genoutput.c (fatal, fancy_abort): Likewise.
1328 * genpeep.c (fatal, fancy_abort): Likewise.
1330 * genrecog.c (fatal, fancy_abort): Likewise.
1332 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
1333 __sjpopnthrow, __throw): Likewise.
1335 * objc/objc-act.c (objc_fatal): Likewise.
1337 * protoize.c (usage, aux_info_corrupted,
1338 declare_source_confusing): Likewise.
1340 * rtl.c (dump_and_abort): Likewise.
1342 * rtl.h (sets_cc0_p): Likewise.
1344 * toplev.c (float_signal, pipe_closed): Likewise.
1346 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1348 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
1349 when generating the decision tree for the general case.
1351 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
1352 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
1354 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1356 * Makefile.in (sched.o): Depend on recog.h.
1358 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
1359 (unsigned) when comparing against one.
1360 (find_base_value): Likewise.
1361 (record_base_value): Cast variable `regno' to (unsigned) when
1362 comparing against one. Cast the result of REGNO() macro to
1363 (unsigned) when comparing against one.
1364 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
1366 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
1367 variable where an unsigned index is needed.
1369 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
1370 before comparing against one.
1372 * collect2.c: Add prototypes for functions `error', `fatal' and
1373 `fatal_perror'. Make these functions take variable arguments
1374 instead of faking it with a fixed number of args.
1375 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
1378 * combine.c (can_combine_p): Mark parameter `pred' with
1380 (find_split_point): Cast variable `src' to (unsigned
1381 HOST_WIDE_INT) when comparing against one.
1382 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
1383 (simplify_logical): Likewise.
1384 (force_to_mode): Cast result of INTVAL() macro to (unsigned
1385 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
1386 HOST_WIDE_INT) in shift.
1387 (simplify_and_const_int): Cast result of INTVAL() macro to
1388 `unsigned HOST_WIDE_INT' when comparing against one.
1389 (merge_outer_ops): Cast variable const0 to `unsigned
1390 HOST_WIDE_INT' when comparing against the result of
1391 GET_MODE_MASK() macro.
1392 (simplify_comparison): Likewise for variable `c0'. Cast variable
1393 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
1394 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
1395 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
1396 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
1397 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
1398 comparing against one.
1399 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
1401 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
1402 macro to `unsigned HOST_WIDE_INT' when comparing against one.
1403 (output_block_move): Cast `sizeof' expression to (int) when
1404 comparing against one.
1405 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
1407 (save_restore_insns): Cast `base_offset' to `long' to match format
1408 specifier in fprintf.
1410 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
1411 to `enum machine_mode'.
1413 * flow.c (life_analysis_1): Remove unused variable `insn'.
1415 * gcc.c (translate_options): Move variables `j' and `k' into the
1416 scope in which they are used. Change their types to `size_t'.
1417 (set_spec): Cast the argument of ctype macro to `unsigned char'.
1418 (read_specs): Likewise.
1419 (process_command): Cast `sizeof' to (int) when comparing against one.
1420 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
1421 (handle_braces): Cast both sides of `==' expression to `long' to
1422 ensure sign matching.
1423 (main): Cast variable `i' to `int' when comparing against one.
1425 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
1426 int to size_t. Cast variable `i' to size_t when comparing against
1429 * genattrtab.c (convert_set_attr_alternative): Remove unused
1430 parameter `insn_code'. All callers changed.
1431 (convert_set_attr): Likewise.
1433 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
1434 size_t when comparing against one. Likewise for variable `len'.
1436 * global.c (global_alloc): Cast variable `max_regno' to size_t
1437 when comparing against one. Likewise for variable `max_allocno'.
1439 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
1441 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
1442 `set' with ATTRIBUTE_UNUSED.
1443 (find_free_reg): Cast `sizeof' expression to (int) when comparing
1446 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
1447 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
1448 (get_condition): Cast variable `const_val' to `unsigned
1449 HOST_WIDE_INT' when comparing against one. Cast unsigned
1450 expression to HOST_WIDE_INT when comparing against one.
1451 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
1452 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
1453 `unsigned' when comparing against one.
1455 * protoize.c (is_id_char): Change type of parameter `ch' to
1457 (munge_compile_params): Cast argument of ctype macro to (const
1459 (process_aux_info_file): Cast variable `aux_info_size' to int when
1460 comparing against one.
1461 (forward_to_next_token_char): Cast argument of ctype macro to
1462 `const unsigned char'.
1463 (edit_formals_lists): Likewise.
1464 (find_rightmost_formals_list): Likewise.
1465 (add_local_decl): Likewise.
1466 (add_global_decls): Likewise.
1467 (edit_fn_definition): Likewise.
1468 (do_cleaning): Likewise.
1469 (scan_for_missed_items): Likewise.
1470 (edit_file): Cast variable `orig_size' to (int) when comparing
1472 (main): Cast argument of ctype macro to `const unsigned char'.
1474 * recog.c (const_int_operand): Mark parameter `mode' with
1477 * regclass.c (record_reg_classes): Change type of variable `c' to
1478 `unsigned char'. Cast `char' array index to `unsigned char'.
1480 * reload.c (push_secondary_reload): Cast argument to
1481 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
1483 * reload1.c (calculate_needs): Cast `char' array index to
1485 (set_label_offsets): Change type of variable `i' to unsigned int.
1486 Cast result of XVECLEN() macro to unsigned when comparing against
1488 (mark_not_eliminable): Change type of variable `i' to unsigned.
1489 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
1490 when comparing against one.
1491 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
1492 comparing against one.
1493 (choose_reload_regs): Hide unused label `fail'.
1494 (reload_cse_simplify_operands): Cast `char' array index to
1496 (reload_combine_note_store): Mark parameter `set' with
1497 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
1499 (reload_cse_move2add): Remove unused variable `src2'.
1501 * sched.c: Include recog.h.
1502 (sched_note_set): Remove unused parameter `b'. All callers
1504 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
1505 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
1506 when comparing against one.
1508 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
1509 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
1510 comparing against one.
1512 * unroll.c (precondition_loop_p): Remove unused parameter
1513 `loop_end'. All callers changed.
1515 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1517 * reload1.c (maybe_fix_stack_asms): New static function.
1520 * reload.h (compute_use_by_pseudos): Declare.
1522 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
1523 (something_needs_reloads): Delete variable.
1524 (finish_spills): New function.
1525 (compute_use_by_pseudos): New function.
1527 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
1528 Use the reload_insn_chain instead of walking the rtl directly.
1530 (reload): Allocate and free spilled_pseudos.
1531 Ensure that all calls of spill_hard_reg are followed by a call to
1533 Use the insns_need_reload list instead of something_needs_reloads
1534 to find out if reload_as_needed must be called.
1535 Clear unused_insn_chains at the end.
1537 (calculate_needs_all_insns): Lose FIRST parameter. All callers
1539 Delete code to keep track of current basic block.
1540 Walk reload_insn_chain instead of the rtl structure. Build the
1541 insns_need_reload chain.
1542 Remember which insns need reloading/elimination by setting the
1543 appropriate fields in struct insn_chain, not by putting modes on the
1546 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
1547 arg INSN. All callers changed.
1548 Delete declaration of struct needs.
1549 Don't set something_needs_reloads.
1550 Record insn needs in the CHAIN argument.
1552 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
1554 (reload_as_needed): Lose FIRST arg. All callers changed.
1555 Walk the reload_insn_chain instead of the rtx structure.
1556 Delete code to keep track of current basic block.
1557 Rename one of the NEXT variables to OLD_NEXT.
1559 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
1561 (choose_reload_regs): Likewise.
1563 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
1566 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
1567 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
1568 (hard_regs_live, hard_regs_need_restore): Delete variables.
1569 (n_regs_saved): Now static.
1570 (referenced_regs, this_insn_sets): New variables.
1572 (setup_save_areas): Restructure the code a bit.
1574 (restore_referenced_regs): Delete function.
1575 (mark_referenced_regs): New function, similar to the old
1576 restore_referenced_regs, but mark registers in referenced_regs.
1578 (clear_reg_live): Delete function.
1579 (mark_set_regs): Renamed from set_reg_live. All callers changed.
1580 Only mark registers in this_insn_sets.
1582 (save_call_clobbered_regs): Rework this function to walk the
1583 reload_insn_chain instead of using the list of instructions directly.
1584 Delete code to keep track of register lives, compute live regs on the
1585 fly from information in the chain.
1586 Instead of calling restore_referenced_regs, use mark_referenced_regs,
1587 then walk the set it computes and call insert_restore as appropriate.
1589 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
1591 Restructure the code a bit. Test hard_regs_saved instead of
1592 hard_regs_need_restore.
1593 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
1594 args. All callers changed.
1595 Restructure the code a bit. Use TO_SAVE to determine which regs to
1596 save instead of more complicated test.
1597 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
1599 Create a new insn_chain structure for the new insn and place it
1602 * rtl.texi: Update documentation to reflect that reload no longer
1603 puts modes on the insns.
1605 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1607 * function.c (purge_addressof_1): Force the first argument of a
1608 CALL insn to memory.
1610 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
1612 * rtl.h: Delete duplicate prototypes. Add some missing
1614 * rtlanal.c: (for_each_rtx): Formatting tweak.
1616 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1618 * real.c (emdnorm and etoasc): Disable round to even for c4x target
1619 to be compatible with TI compiler.
1621 * Makefile.in (USER_H): Add va-c4x.h to definition.
1623 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
1625 * function.c (purge_addressof_1): Fix typo in inequality: do
1626 bitfield optimization for equal mode sizes.
1627 * expmed.c (store_bit_field): Don't take subregs of subregs in
1628 the movstrict case. Tidy a potential problem in the multi-word case.
1629 (extract_bit_field): Likewise.
1631 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1633 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
1635 Compute max_uid_for_flow by calling get_max_uid after the scan.
1636 (find_basic_blocks_1): Don't emit NOPs here.
1638 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
1640 * alias.c (base_alias_check): Accept new args for the modes of the
1641 two references. Use them to determine if an AND can overlap. Update
1643 (memrefs_conflict_p): Assume sizes are aligned, and uses them
1644 to determine if an AND can overlap.
1646 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
1648 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
1649 check. Add comment to document problems with TARGET_SUN_FPA version
1651 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
1653 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1655 * Makefile.in (gencheck.o): Depend on gansidecl.h.
1657 * c-common.c (print_char_table): Add missing initializers.
1658 (scan_char_table): Likewise.
1659 (time_char_table): Likewise.
1661 * c-decl.c (c_decode_option): Mark parameter `argc' with
1663 (declare_parm_level): Mark parameter `definition_flag' with
1666 * c-lex.c (readescape): Use `(unsigned)1' in shift.
1667 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
1670 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
1672 (emit_call_1): Mark parameters `fndecl' and `funtype' with
1674 (expand_call): Cast result of MIN() to (unsigned int) when
1675 comparing against an unsigned value.
1677 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
1679 (make_definition): Remove unused parameter `op'. All callers
1681 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
1682 comparing against the result of pointer arithmetic.
1684 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
1685 when comparing against one.
1687 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
1688 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
1690 (output_die): Move variable `i' into the scope in which it is
1691 used. Change its type to `unsigned'.
1692 (output_die): Cast the result of `strlen' to (int) when passing it
1693 to ASM_OUTPUT_ASCII().
1694 (output_pubnames): Likewise.
1695 (output_line_info): Likewise.
1697 * emit-rtl.c (global_rtl): Add missing initializers.
1699 * explow.c (promote_mode): Mark parameter `for_call' with
1702 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
1703 `unsigned HOST_WIDE_INT' when comparing against one.
1704 (synth_mult): Change type of variable `cost' to int.
1705 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
1707 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
1708 when comparing against one.
1709 (get_inner_reference): Change variable `alignment' to unsigned.
1710 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
1711 int) when comparing against one.
1712 (expand_builtin_setjmp): Change type of variable `i' to size_t.
1714 * fold-const.c (div_and_round_double): Cast BASE to
1715 (HOST_WIDE_INT) when comparing against one.
1717 * gencheck.c: Include gansidecl.h.
1718 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
1720 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
1721 `tcode' with ATTRIBUTE_UNUSED.
1723 * real.c (edivm): Cast constant value to (unsigned long) in
1724 expression compared against an unsigned value.
1726 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
1727 comparing against one.
1728 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
1729 when comparing against one.
1731 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
1732 (unsigned int) when comparing against one. Likewise for
1734 (smallest_mode_for_size): Likewise.
1735 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
1736 (restore_storage_status): Likewise.
1738 * toplev.c (debug_args): Add missing initializer.
1739 (f_options): Spelling correction. Add missing initializers.
1740 (documented_lang_options): Likewise.
1741 (debug_end_source_file): Mark parameter `lineno' with
1744 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
1745 `decl' and `type' with ATTRIBUTE_UNUSED.
1747 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
1748 when comparing against one.
1749 (assemble_variable): Mark parameter `top_level' with
1751 (assemble_external_libcall): Mark parameter `fun' with
1753 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
1756 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
1758 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
1759 Replace use of r5 with use of r19.
1761 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
1763 * config/v850/v850.c (compute_register_save_size): Allow for the
1764 fact that helper functions save all registers, not just those used
1767 Replace constant 31 with macro LINK_POINTER_REGNUM.
1769 * config/v850/v850.md: Use 'indirect_operand' rather than
1770 'memory_operand' for bit test/set/clear patterns.
1772 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
1774 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
1775 * varasm.c (assemble_start_function et al): Don't call
1776 ASM_GLOBALIZE_LABEL for weak symbols.
1778 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
1780 * cse.c (equiv_constant): Check for NULL return from
1781 gen_lowpart_if_possible().
1783 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
1785 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
1787 * collect2.c (main): Pass -EL/-EB through to the compiler.
1789 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1791 * expr.c (push_block): Handle targets where the stack grows
1792 to higher addresses, but args grow to lower addresses and
1793 ACCUMULATE_OUTGOING_ARGS is not defined.
1795 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
1797 * config/v850/v850.c (print_operand): Extend meaning
1798 of 'c' operands to support .vtinherit.
1800 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1802 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
1803 Added ATTRIBUTE_UNUSED to unused function arguments.
1804 (rc_reg_operand): New predicate.
1805 (c4x_rptb_insert): New function.
1806 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
1807 (c4x_optimization_options): New function.
1809 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
1810 (decrement_and_branch_on_count): New pattern.
1811 (rptb_top): Modified pattern to work with BCT optimization.
1813 * config/c4x/c4x.h (RC_REG): New register class.
1814 (rc_reg_operand): Define prototype.
1815 (IS_RC_REG): New macro.
1816 (IS_RC_OR_PSEUDO_REG): New macro.
1817 (IS_RC_OR_PSEUDO_REGNO): New macro.
1818 (OPTIMIZATION_OPTIONS): Define.
1820 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
1822 * collect2.c (extract_init_priority): No priority is 65535.
1824 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1826 * Makefile.in (build_tooldir): new variable, same as old
1827 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
1828 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
1829 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
1831 * configure.in (gxx_include_dir): set default based on unlibsubdir
1832 * Makefile.in (tooldir): ditto
1833 (cccp.o, cpplib.o): use unlibsubdir implicitly through
1834 gxx_include_dir, includedir and tooldir
1835 (protoize.o, unprotoize.o): ditto
1837 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
1839 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
1841 * config/arm/thumb.c (thumb_override_options): Add warning about
1842 PIC code not being supported just yet.
1844 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
1846 * flow.c: Update comment.
1847 (notice_stack_pointer_modification): New static function.
1848 (record_volatile_insns): Use it.
1849 (mark_regs_live_at_end): Mark the stack pointer as alive
1850 at the end of the function if current_function_sp_is_unchanging
1852 (life_analysis_1): Set current_function_sp_is_unchanging.
1853 * function.c: Define it.
1854 (init_function_start): Initialize it.
1855 * output.h: Declare it.
1856 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
1857 the stack pointer as alive at the end of the function if
1858 current_function_sp_is_unchanging is set.
1859 * i386.c (ix86_epilogue): Optimize the restoring
1860 of the stack pointer.
1862 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
1864 * version.c: Bump for snapshot.
1866 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
1868 * c-pragma.c (handle_pragma_token): If passed a token instead
1869 of a tree, use that as the pack value.
1871 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
1873 * flow.c (find_basic_blocks_1): Fix prototype.
1875 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
1877 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
1878 (struct tree_decl): New fields no_check_memory_usage.
1879 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
1880 (init_attributes): Register it as a new attribute.
1881 (decl_attributes): Set flags on functions given that attribute.
1882 * c-decl.c (duplicate_decls): Merge new attribute.
1883 * expr.h (current_function_check_memory_usage): Declare new var.
1884 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
1885 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
1886 current_function_check_memory_usage.
1887 * function.h: Add field to struct function.
1888 * function.c (current_function_check_memory_usage): Define it.
1889 (push_function_context_to, pop_function_context_from): Save and
1891 (expand_function_start): Set it, based on global flag and function
1894 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
1895 check non-automatic variables, to permit detection of writes to
1896 read-only locations in embedded systems without memory management.
1897 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
1898 when emitting chkr_set_right_libfunc call, even if the argument is
1899 BLKmode or variable-sized; don't abort.
1901 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
1902 symbols in Pmode, not VOIDmode.
1904 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1906 * cppexp.c: When forcing unsigned comparisons, cast both sides
1909 * cpphash.h: Move static declaration of hashtab[]...
1910 * cpphash.c: ...here.
1912 * cpplib.c: Cast difference of two pointers to size_t before
1913 comparing it to size_t. Cast signed to unsigned
1914 before comparing to size_t. (FIXME: struct argdata should use
1915 unsigned buffer sizes.)
1916 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
1917 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
1918 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
1919 size_t before comparison.
1921 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
1923 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
1924 (find_basic_blocks_1): Similarly.
1925 * output.h (find_basic_blocks): Fix prototype.
1926 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
1927 find_basic_blocks anymore.
1929 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
1931 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
1932 (sbitmap_free, sbitmap_vector_free): New macros.
1933 * output.h (rtl_dump_file): Declare.
1935 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
1937 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
1939 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1941 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
1943 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
1944 (divide): Remove unused variable `tmp'.
1945 (si_to_float): Cast numeric constant to (SItype) before comparing
1948 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
1950 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
1951 * gcc.c (add_preprocessor_option): Correct typo when allocating
1952 memory, sizeof() argument had one too many `*'.
1953 (add_assembler_option): Likewise.
1954 (add_linker_option): Likewise.
1955 * gcov.c (output_data): Likewise.
1956 * local-alloc.c (memref_used_between_p): Likewise.
1957 (update_equiv_regs): Likewise.
1958 * loop.c (strength_reduce): Likewise.
1959 * reg-stack.c (record_asm_reg_life): Likewise.
1960 (subst_asm_stack_reg): Likewise.
1961 * reorg.c (dbr_schedule): Likewise.
1963 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1965 * flow.c (life_analysis_1): Break out some functions.
1966 (find_basic_blocks_1): Likewise. Also move some variables out and
1968 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
1969 new static var nonlocal_label_list with it.
1970 (active_eh_region, nested_eh_region, label_value_list,
1971 nonlocal_label_list): New static variables.
1972 (make_edges, delete_unreachable_blocks, delete_block): New static
1973 functions, broken out of find_basic_blocks_1.
1974 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
1975 noop_move_p): New static functions, broken out of life_analysis_1.
1977 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
1979 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
1980 Take extra care for op0 now possibly being a subreg.
1981 (extract_bit_field): Likewise.
1982 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
1983 the reg to memory if there is no equal sized integral mode.
1984 * stor-layout.c (int_mode_for_mode): New function.
1985 * machmode.h: Prototype it.
1987 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
1989 * global.c (build_insn_chain): Verify no real insns exist past the
1990 end of the last basic block, then exit the loop.
1992 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
1994 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
1996 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
1998 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
2000 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
2002 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
2004 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
2006 * flow.c (find_basic_blocks): Correctly determine when a call
2007 is within an exception region.
2009 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
2011 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
2013 * cpplib.h: Protect from multiple inclusions.
2014 * cpplib.c: Fix minor formatting problems.
2016 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
2018 * jump.c (jump_optimize): Revert accidental patch.
2020 * Makefile.in (cpplib.o): Use unlibsubdir.
2022 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
2024 * loop.c (get_condition): Allow combine when either compare is
2027 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
2029 * version.c: Bump for snapshot.
2031 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
2033 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
2034 (init_lex): Initialize ridpointers[RID_BYREF].
2035 * c-lex.h (enum rid): Add RID_BYREF.
2036 * c-parse.gperf: Add RID_BYREF as a type qualifier.
2037 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
2038 (encode_type_qualifiers): Similarly
2039 * c-gperf.h: Rebuilt.
2041 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
2043 * c-common.c (type_for_mode): Only return TItype nodes when
2044 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2045 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
2046 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2047 (init_decl_processing): Only create TItype nodes when
2048 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2049 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
2050 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2052 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2054 * stmt.c (n_occurrences): New static function.
2055 (expand_asm_operands): Verify that all constrains match in the
2056 number of alternatives.
2057 Verify that '+' or '=' are at the beginning of an output constraint.
2058 Don't allow '&' for input operands.
2059 Verify that '%' isn't written for the last operand.
2060 * reload.c (find_reloads): Abort if an asm is found with invalid
2061 constraints; all possible problems ought to be checked for earlier.
2063 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2065 * flags.h (flag_branch_on_count_reg): Always declare
2066 * toplev.c (flag_branch_on_count_reg): Likewise.
2067 * toplev.c: Fix typos.
2069 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
2072 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
2074 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
2076 (find_basic_blocks_1): Add a nop to the end of a basic block when
2077 a trailing call insn does not have abnormal control flow.
2078 * gcse.c (pre_transpout): New variable.
2079 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
2080 (compute_pre_transpout): Calculate it.
2081 (compute_pre_ppinout): Use it to eliminate impossible placements
2082 due to abnormal control flow through calls.
2083 (compute_pre_data): Call compute_pre_transpout.
2085 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2087 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
2089 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
2091 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
2092 and matching define_insns): Tack on a `use' of the table label, so
2093 flow analysis will recognize a tablejump.
2095 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
2097 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
2098 always end basic blocks for abnormal edge reasons.
2100 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
2102 * config/i386/i386.h: Remove definition of
2103 HANDLE_PRAGMA_PACK_PUSH_POP.
2105 * config/i386/go32.h: Add definition of
2106 HANDLE_PRAGMA_PACK_PUSH_POP.
2108 * config/i386/win32.h: Add definition of
2109 HANDLE_PRAGMA_PACK_PUSH_POP.
2111 * config/i386/cygwin32.h: Add definition of
2112 HANDLE_PRAGMA_PACK_PUSH_POP.
2114 * c-pragma.c (insert_pack_attributes): Do not insert
2115 attributes unless #pragma pack(push,<n>) is in effect.
2117 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
2119 * expr.c (emit_group_store): Handle a PARALLEL destination.
2121 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
2123 * gcse.c (pre_insert_insn): When a call ends a bb, insert
2124 the new insns before the argument regs are loaded.
2126 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2128 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
2129 (c-parse.gperf): Update comments describing invocation flags.
2130 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
2132 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
2134 * reload1.c (reload): Call free before clobbering the memory
2135 locations or constants pointers.
2137 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2139 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
2140 for efficiency by checking whether we need to modify the current
2141 stack permission at all.
2142 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
2143 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
2144 __enable_execute_stack libcall here too if
2145 TRANSFER_FROM_TRAMPOLINE is defined.
2146 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
2149 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
2151 * Makefile.in (DRIVER_DEFINES): Remove last change.
2153 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2155 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
2156 insns we're going to copy.
2157 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
2159 * loop.c (count_one_set): Add prototype.
2161 * caller-save.c (restore_referenced_regs): Lose mode argument.
2162 (insert_save): Lose mode argument.
2163 (insert_restore): Lose mode argument.
2164 (insert_one_insn): Lose mode argument.
2165 (save_call_clobbered_regs): Lose mode argument.
2166 (setup_save_areas): Take no argument and return void. All callers
2168 Don't verify validity of memory addresses.
2169 * reload.h (setup_save_ares): Adjust prototype.
2170 (save_call_clobbered_regs): Likewise.
2171 * reload1.c (delete_caller_save_insns): New function.
2172 (caller_save_spill_class): Delete variable.
2173 (caller_save_group_size): Delete variable.
2174 (reload): Call setup_save_areas and save_call_clobbered_regs
2175 in the main loop, before calling calculate_needs_all_insns.
2176 Don't call save_call_clobbered_regs after the loop.
2177 Call delete_caller_save_insns at the end of an iteration if
2179 Delete code to manage caller_save_spill_class.
2180 Emit the final note before setting reload_first_uid.
2181 Simplify test that determines whether reload_as_needed gets run.
2182 (calculate_needs): Delete code to manage caller_save_spill_class.
2184 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
2186 * collect2.c (main): Initialize ld_file_name.
2188 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
2190 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
2191 check for flag_function_sections.
2193 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2195 * cse.c (insert_regs): Fix bug in Sep 24 change.
2197 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2199 * flags.h (flag_dump_unnumbered): Declare.
2200 * toplev.c (flag_dump_unnumbered): Don't declare.
2201 * print-rtl.c (flags.h): Include.
2202 (print_rtl_single): Add return value.
2203 * rtl.h (print_rtl_single): Update declaration.
2204 * flow.c (flag_dump_unnumbered): Don't declare.
2205 (print_rtl_with_bb): Use return value of print_rtl_single.
2207 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2209 * loop.c (count_one_set): New static function, broken out of
2211 (count_loop_regs_set): Call it.
2212 * global.c (mark_reg_store): Handle clobbers here by not calling
2214 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
2215 is in fact a clobber.
2216 * integrate.c (process_reg_param): New function, broken out of
2217 expand_inline_function.
2218 (expand_inline_function): Call it.
2221 * i386.md (addsidi3_1): Delete unused variable temp.
2222 (addsidi3_2): Likewise.
2223 (clstrstrsi): Delete unused variable addr1.
2225 * rtl.h: Don't declare any functions also declared in recog.h.
2227 * Makefile.in (stupid.o): Update dependencies.
2228 (global.o): Likewise.
2230 * global.c: Include reload.h
2231 (reg_becomes_live): New function.
2232 (reg_dies): New function.
2233 (build_insn_chain): New function.
2234 (global_alloc): Call build_insn_chain before calling reload.
2236 * reload.h (struct needs): New structure definition.
2237 (struct insn_chain): Likewise.
2238 (reload_insn_chain): Declare variable.
2239 (new_insn_chain): Declare function.
2242 * reload1.c (reload_startobj): New variable.
2243 (reload_insn_chain): New variable.
2244 (unused_insn_chains): New variable.
2245 (new_insn_chain): New function.
2246 (init_reload): Initialize reload_startobj, not reload_firstobj.
2247 (reload): Initialize reload_firstobj.
2248 Before returning, free everything on the reload_obstack.
2250 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
2251 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
2252 current_chain): New variables.
2253 (reg_where_born): Delete variable.
2254 (REG_WHERE_BORN): New macro.
2255 (find_clobbered_regs): New function.
2256 (stupid_life_analysis): Don't allocate/free reg_where_born.
2257 Allocate and free reg_where_born_exact, reg_where_born_clobber,
2258 reg_where_dead_chain.
2259 Use REG_WHERE_BORN instead of reg_where_born.
2260 While processing the insns, build the reload_insn_chain with
2261 information about register lifetimes.
2262 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
2263 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
2265 Compute and information about birth and death of pseudo registers in
2266 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
2267 Delete code to set elements of reg_where_born.
2269 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2271 * tree.def (GOTO_EXPR): Modified documentation.
2272 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
2275 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
2277 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
2278 loop_final_value, loop_comparison_code): No longer static.
2279 (unroll_loop): Delete loop_start_value update.
2280 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
2281 loop_final_value, loop_comparison_code): Extern.
2282 (loop_start_value): Delete extern.
2283 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
2284 loop_comparison_value, loop_comparison_code): Delete.
2285 (loop_optimize): Remove initialization for deleted variables.
2286 (strength_reduce): Delete analyze_loop_iterations call. Only call
2287 insert_bct if flag_branch_count_on_reg set.
2288 (analyze_loop_iterations): Delete.
2289 (insert_bct): Remove iteration count calculation. Move checks for
2290 viable BCT optimization to here. Obtain iteration count from
2291 loop_iterations and correct for unrolling. Check for enough
2292 iteration to be beneficial. Comment out runtime iteration count
2294 (insert_bct): Print iteration count in dump file. Remove
2295 loop_var_mode and use word_mode directly.
2297 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
2298 * rs6000.c (rs6000_override_options): Use it.
2299 (optimization_options): Enable use of flag_branch_on_count_reg.
2300 * rs6000.md (define_function_unit): Describe 604e.
2302 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2304 * loop.c (move_movables): Corrected threshold calculation for
2305 moved_once registers.
2307 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2309 * loop.c (combine_givs_p): Fix test for identical givs.
2311 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
2313 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
2314 call abort if the function is already defined.
2316 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
2318 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
2319 truncation is not a no-op.
2321 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
2323 * version.c: Bump for snapshot.
2325 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
2327 * version.c: Bump for snapshot.
2329 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
2331 * expmed.c (expand_divmod): Don't widen for computing remainder
2332 if we seem to have a divmod pattern for needed mode.
2334 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2336 * cpplib.c (macroexpand): Correct off-by-one error in handling
2339 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
2341 * combine.c (expand_field_assignment): Don't do bitwise operations
2342 on MODE_FLOAT; pun to MODE_INT if possible.
2344 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
2345 scott snyder <snyder@d0sgif.fnal.gov>
2347 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
2348 linker. Recognize mangled names in quotes.
2350 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2352 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
2353 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
2354 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
2355 (lshrsi3_extend, lshrsi3_extend2): Ditto.
2357 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2359 * function.c (purge_addressof_1): If trying to take a sub-word
2360 integral piece of a floating point mode, put it on the stack.
2362 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
2364 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
2366 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
2368 * PROJECTS: Remove template friends.
2370 * collect2.c (sort_ids): Remove unused variable.
2372 * tm.texi (MATH_LIBRARY): Document.
2373 (NEED_MATH_LIBRARY): Remove.
2375 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
2376 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
2378 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
2380 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
2381 last_end to 0x7fffffff.
2383 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2385 * function.c (purge_addressof_1): Do not perform endianness
2386 corrections on bitpos, who we call will do it for us.
2388 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
2390 * h8300.c (WORD_REG_USED): Fix typo.
2391 (initial_offset): Use WORD_REG_USED.
2393 * h8300.c (handle_pragma): Fix typo.
2395 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2397 * caller-save.c (insert_save_restore): Break this function up
2398 into new functions insert_restore, insert_save and insert_one_insn.
2399 All callers changed.
2400 (insert_restore): New function, mostly broken out of
2401 insert_save_restore.
2402 (insert_save): Likewise.
2403 (insert_one_insn): Likewise.
2404 (restore_referenced_regs): New argument BLOCK. All callers changed.
2405 (save_call_clobbered_regs): Don't keep track of basic block boundaries
2406 in this function, do it in insert_one_insn instead.
2408 * reload1.c (reload): Break out some more pieces into separate
2410 (dump_needs): New function, broken out of reload.
2411 (set_initial_elim_offsets): Likewise.
2412 (init_elim_table): Likewise.
2413 (update_eliminables): Likewise.
2415 * global.c (global_alloc): Delete code to manage the scratch_list.
2416 * local-alloc.c (qty_scratch_rtx): Delete.
2417 (scratch_block): Delete.
2418 (scratch_list): Delete.
2419 (scratch_list_length): Delete.
2420 (scratch_index): Delete.
2421 (alloc_qty_for_scratch): Delete.
2422 (local-alloc): Update initialization of max_qty.
2423 Delete code to manage the scratch list.
2424 Delete code to allocate/initialize qty_scratch_rtx.
2425 (block_alloc): Don't allocate quantities for scratches.
2426 Delete code to manage the scratch list.
2427 * regs.h (scratch_list): Delete declaration.
2428 (scratch_block): Delete declaration.
2429 (scratch_list_length): Delete declaration.
2430 * reload1.c (reload): Delete code to manage the scratch list.
2431 (spill_hard_reg): Likewise.
2432 (mark_scratch_live): Delete.
2434 * recog.c (alter_subreg): Delete declaration.
2436 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2438 * Makefile.in (cccp.o): Fix typo in last patch.
2440 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2442 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
2443 * config/sh/lib1funcs.asm (___set_fpscr): Add.
2445 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
2447 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
2448 NULL_RTX as an argument.
2450 * Makefile.in (unlibsubdir): Define.
2451 (DRIVER_DEFINES): Use unlibsubdir.
2452 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
2453 (stmp-fixinc): Similarly.
2455 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2457 * regmove.c (regmove_optimize): Add variable old_max_uid.
2458 At the end of the function, update basic_block_end.
2460 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2462 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
2463 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
2466 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
2468 * config/arm/arm.c: Improve interworking support.
2470 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2472 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
2473 copied from reload_out[r] .
2475 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
2477 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
2478 with more than three size ranges.
2480 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
2482 * rtl.c (mode_name): Add a null string at the end of the array.
2483 (mode_wider_mode): Change type to unsigned char.
2484 (mode_mask_array): New variable.
2485 (init_rtl): Update for mode_wider_mode type change.
2487 * rtl.h (mode_wider_mode): Change type to unsigned char.
2488 (mode_mask_array): Declare.
2489 (GET_MODE_MASK): Use mode_mask_array.
2491 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
2493 * calls.c (expand_call) : Encapsulate code into
2494 copy_blkmode_from_reg.
2495 * expr.c (copy_blkmode_from_reg): New function.
2496 * expr.h (copy_blkmode_from_reg): New function.
2497 * integrate.c (function_cannot_inline_p): We can inline
2499 (expand_inline_function): Use copy_blkmode_from_reg
2500 if needed. Avoid creating BLKmode REGs.
2501 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
2504 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
2506 * config/v850/v850.c: Add function prototypes.
2507 Add support for v850 special data areas.
2509 * config/v850/v850.h: Add support for v850 special data areas.
2511 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
2512 HANDLE_PRAGMA_PACK_PUSH_POP.
2513 (push_alignment): New function: Cache an alignment requested
2514 by a #pragma pack(push,<n>).
2515 (pop_alignment): New function: Pop an alignment from the
2517 (insert_pack_attributes): New function: Generate __packed__
2518 and __aligned__ attributes for new decls whilst a #pragma pack
2520 (add_weak): New function: Cache a #pragma weak directive.
2521 (handle_pragma_token): Document calling conventions. Add
2522 support for #pragma pack(push,<n>) and #pragma pack (pop).
2524 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
2525 are defined enable HANDLE_PRAGMA_PACK.
2526 Move 'struct weak_syms' here (from varasm.c).
2527 Add pragma states for push and pop pragmas.
2529 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
2532 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
2533 HANDLE_GENERIC_PRAGMAS.
2535 * varasm.c: Move definition of 'struct weak_syms' into
2537 (handle_pragma_weak): Deleted.
2539 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2541 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2543 * c-decl.c (start_function): Add invocation of
2544 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
2546 * tm.texi: Remove description of non-existant macro
2547 SET_DEFAULT_SECTION_NAME.
2549 (HANDLE_SYSV_PRAGMA): Document.
2550 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
2552 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
2554 * config.sub: Recognize i[34567]86-pc-udk as new target.
2555 * configure.in: Likewise.
2556 * config/i386/t-udk: New file.
2557 * config/i386/udk.h: New file.
2559 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
2561 * reorg.c (check_annul_list_true_false): Remove unused variables.
2562 (steal_delay_list_from_target): Add missing "used_annul" variable.
2563 (try_merge_delay_insns): Close out half formed comment.
2565 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2567 * cpplib.c (macroexpand): If arg->raw_before or
2568 arg->raw_after, remove any no-reexpansion escape at the
2569 beginning of the pasted token. Correct handling of whitespace
2570 markers and no-reexpand markers at the end if arg->raw_after.
2572 * toplev.c (documented_lang_options): Recognize -include,
2573 -imacros, -iwithprefix, -iwithprefixbefore.
2574 * cpplib.c (cpp_start_read): Process -imacros and -include
2575 switches at the same time and in command-line order, after
2576 initializing the dependency-output code. Emit properly nested
2577 #line directives for them. Emit a #line for the main file
2578 before processing these switches, and don't do it again
2581 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
2583 * function.c (purge_addressof_1): Use bitfield manipulation
2584 routines to handle mem mode < reg mode.
2586 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2588 * reorg.c (try_merge_delay_insns): Account for resources referenced
2589 in each instruction in INSN's delay list before trying to eliminate
2590 useless instructions. Similarly when looking at a trial insn's delay
2593 * reorg.c (check_annul_list_true_false): New function.
2594 (steal_delay_list_from_{target,fallthrough}): Call it and also
2595 refine tests for when we may annul if already filled a slot.
2596 (fill_slots_from_thread): Likewise.
2597 (delete_from_delay_slot): Return newly-created thread.
2598 (try_merge_delay_isns): Use its new return value.
2600 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
2602 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
2603 used to compute a giv or as some other non-counting use.
2605 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2607 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2608 * local-alloc.c (find_free_reg): Use it.
2609 * global.c (find_reg): Likewise.
2610 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
2612 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
2613 * caller-save.c (init_caller_save): Use it.
2614 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
2616 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2618 * configure.in: Add --enable-cpplib option which uses cpplib
2619 for cpp, but doesn't link cpplib into cc1. Make help text
2620 capitalization consistent.
2621 * configure: Rebuilt.
2623 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
2625 * function.c (gen_mem_addressof): If the address REG is
2626 REG_USERVAR_P make the new REG be so also.
2627 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
2628 in an attempt to clarify slightly.
2630 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
2632 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
2633 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
2635 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
2637 * toplev.c: Fix last patch.
2639 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
2641 * loop.c (get_condition): Fix typo in May 9 change.
2643 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2645 * invoke.texi (-fexceptions): Merge 2 different descriptions.
2647 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2649 * toplev.c (documented_lang_options): Spelling corrections.
2651 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2653 * configure.in: new flags --with-ld and --with-as, equivalent
2654 to setting LD and AS environment variables. Test whether
2655 specified arguments are GNU commands, and report them with
2656 checking messages. Use the specified AS for configure
2659 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
2661 * gcc.c (find_a_file): when looking for `as' and `ld', return
2662 the DEFAULT program if it exists
2663 * collect2.c (main): use DEFAULT_LINKER if it exists
2665 * gcc.c (find_a_file): the test for existence of a full
2666 pathname was reversed
2668 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
2670 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
2671 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
2673 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
2675 * tree.h (TYPE_BINFO): Document.
2677 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
2679 * i386-coff.h (dbxcoff.h): Added.
2681 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
2683 * toplev.c: fix bad patch around flag_data_sections.
2685 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
2687 * reload1.c (reload): Use reload_address_index_reg_class and
2688 reload_address_base_reg_class when setting
2689 caller_save_spill_class. (Patch generated by Jim Wilson:
2692 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
2694 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
2695 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
2696 * expr.c (store_field): Add alias_set parameter. Set the
2697 MEM_ALIAS_SET accordingly, if the target is a MEM.
2698 (expand_assignment): Use it.
2699 (store_constructor_field): Pass 0.
2700 (expand_expr): Likewise.
2702 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
2704 * flags.h: Add flag_data_sections.
2705 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
2706 (compile_file): Error if flag_data_sections not supported.
2707 * varasm.c (assemble_variable): Handle flag_data_sections.
2708 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
2709 * config/mips/elf.h: Likewise.
2710 * config/mips/elf64.h: Likewise.
2711 * invoke.texi: Describe -fdata-sections.
2713 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
2715 * invoke.texi (-ffloat-store): Clarify that this option
2716 does not affect intermediate results -- only variables.
2718 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
2720 * cpp.texi: Update for Fortran usage from Craig.
2722 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2724 * rs6000.c (function_arg_boundary): Revert accidental change on
2727 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
2729 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
2730 (output_mi_thunk): Declare.
2732 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
2733 (output_function_profiler): Use r12 for temp, instead of r11 so
2734 that we preserve the static chain register.
2736 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
2738 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
2740 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2742 * sh.c (gen_shl_sext): Fix case 5.
2744 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2746 * reload1.c (reload_combine): Re-add line that got accidentally lost.
2748 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2750 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
2751 accessing variables until they are initialized via va_arg().
2753 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2755 * reload1.c (reload_combine): Initialize set before using.
2757 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
2759 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
2762 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
2764 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
2765 operand3 with mask before using it. Patch provided by Jim Wilson.
2767 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2769 * config/sparc/sparc.c (function_value): Perform the equivalent of
2770 PROMOTE_MODE for ARCH64.
2771 (eligible_for_epilogue_delay): Allow DImode operations in delay
2772 slot of a return for ARCH64.
2774 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2776 * sh.md (sqrtsf2): Fix mode of sqrt.
2778 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2780 * reload1.c (choose_reload_regs): Also try inheritance when
2781 reload_in is a stack slot of a pseudo, even if we already got a
2784 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2786 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
2787 (reload_cse_regs): New function body: call reload_cse_regs_1,
2788 reload_combine, reload_cse_move2add.
2789 When doing expensive_optimizations, call reload_cse_regs_1 a
2790 second time after reload_cse_move2add.
2791 (reload_combine, reload_combine_note_store): New functions.
2792 (reload_combine_note_use): New function.
2793 (reload_cse_move2add, move2add_note_store): New functions.
2795 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2797 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
2798 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
2800 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
2801 more than 3 such reloads.
2803 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
2804 RELOAD_FOR_X_ADDR_ADDR reload.
2806 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2808 * expr.c (store_constructor): When initializing a field that is smaller
2809 than a word, at the start of a word, try to widen it to a full word.
2811 * cse.c (cse_insn): When we are about to change a register,
2812 remove any invalid references to it.
2814 (remove_invalid_subreg_refs): New function.
2815 (mention_regs): Special treatment for SUBREGs.
2816 (insert_regs): Don't strip SUBREG for call to mention_regs.
2817 Check if reg_tick needs to be bumped up before that call.
2818 (lookup_as_function): Try to match known word_mode constants when
2819 looking for a norrower constant.
2820 (canon_hash): Special treatment for SUBREGs.
2822 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2824 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
2825 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
2826 defined, emit libcall to __enable_execute_stack. Also fix opcodes
2827 and offsets in actual stack trampoline code so they match the
2828 commentary and actually work.
2830 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2832 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
2834 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
2835 tmake_file. Set extra_parts to needed crt objects.
2836 * configure: Rebuilt.
2837 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
2838 (TARGET_DEFAULT): Set if default is v9 or ultra.
2839 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
2840 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
2841 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
2842 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
2843 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
2844 (TARGET_VERSION): Define.
2845 (MULTILIB_DEFAULT): Define.
2846 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
2847 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
2848 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
2850 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
2851 * config/sparc/sparc.c (sparc_override_options): If arch and
2852 pointer size disagree, emit diagnostic and fix it up. If
2853 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
2854 V8PLUS in 64-bit mode.
2855 * config/sparc/t-linux64: New file.
2856 * config/sparc/t-sol2-64: New file.
2857 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
2858 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
2859 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
2860 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
2861 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
2862 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
2864 (STARTFILE_SPEC): Set approriately based upon those.
2865 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
2866 disposition of DEFAULT_ARCH32_P.
2867 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
2868 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
2869 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
2870 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
2871 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
2873 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
2875 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
2877 * rtl.h (init_virtual_regs): New function.
2878 * emit-rtl.c (init_virtual_regs): Define.
2879 (insn_emit): Use it.
2880 * integrate.c (save_for_inline_copying): Likewise.
2882 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
2884 * config/arm/thumb.h: The following patches were made by Jim Wilson:
2885 (enum reg_class): Add NONARG_LO_REGS support.
2886 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
2887 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
2888 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
2889 completes. Re-enable HImode REG+OFFSET addresses.
2890 (LEGITIMIZE_RELOAD_ADDRESS): Define.
2892 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
2894 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
2896 * alpha.c (get_aligned_mem): Revert Sep 20 change.
2897 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
2898 (alpha_align_insns): Properly calculate initial offset wrt max_align.
2900 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
2902 * arm.c (find_barrier): Revert change of Apr 23. Handle table
2903 jumps as a single entity, taking into account the size of the
2906 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2908 * tree.def (SWITCH_EXPR): New tree node definition.
2910 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
2912 * version.c: Bump for snapshot.
2914 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
2916 * version.c: Bump for snapshot.
2918 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
2920 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
2923 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
2925 * Revert this patch.
2926 * reload.c (find_reloads): Do not replace a pseudo with
2927 (MEM (reg_equiv_addr)) in the initializing insn for the
2930 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
2932 * final.c (final_scan_insn): Disable tracking CC across branches.
2934 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2936 * expr.h (eh_rtime_match_libfunc): New extern declaration.
2937 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
2938 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
2939 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
2940 NULL. Only include <stdio.h> if inhibit_libc is not defined.
2942 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
2944 * toplev.c (rest_of_compilation): Skip compiling anything with
2945 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
2947 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
2949 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
2950 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
2951 use in_libcall_block.
2952 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
2953 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
2956 Mon Sep 21 14:02:23 1998
2958 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
2959 typo in no-fancy-math-387 description.
2961 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
2963 * version.c: Bump for snapshot.
2965 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
2967 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
2969 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
2971 * i386.h: (TARGET_SWITCHES) Add description fields for flags
2972 documented in install.texi.
2973 (TARGET_OPTIONS) Likewise.
2975 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
2977 * version.c: Bump for snapshot.
2979 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
2981 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
2982 * cccp.c (main): Likewise.
2984 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
2985 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
2988 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
2990 * Makefile.in (LIBS): Link in libiberty.a.
2991 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
2993 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
2995 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
2996 it to update bb boundaries. Update caller.
2997 * function.c (reposition_prologue_and_epilogue_notes): Update
2998 bb boundaries wrt the moved note.
3000 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
3002 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
3004 * configure: Regenerate.
3006 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
3008 * alpha.c (alpha_sr_alias_set): New variable.
3009 (override_options): Set it.
3010 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
3011 (mode_mask_operand): Fix signed-unsigned comparision warning.
3012 (alpha_expand_block_move): Likewise.
3013 (print_operand): Likewise.
3014 (get_aligned_mem): Use change_address.
3015 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
3016 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
3017 (alphaev4_next_nop, alphaev5_next_nop): New functions.
3018 (alpha_align_insns): Remade from old alphaev5_align_insns
3019 to handle multiple processors.
3020 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
3021 * output.h (label_to_alignment): Prototype.
3023 * tree.c (new_alias_set): New function.
3024 * tree.h (new_alias_set): Declare it.
3025 * c-common.c (c_get_alias_set): Use it.
3027 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
3029 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
3030 to an ABS expr, convert an unsigned input to signed.
3032 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
3034 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
3036 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3038 * configure.in: Add support for c4x targets.
3039 * configure: Rebuilt.
3041 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
3043 * combine.c (distribute_notes): If an insn is a cc0 user, only
3044 delete it if we can also delete the cc0 setter.
3046 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
3048 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
3049 (invert_truthvalue): Enable truthvalue inversion for
3050 floating-point operands if -ffast-math.
3052 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
3054 * configure.in: Disable collect2 for nextstep. Instead use
3056 * configure: Rebuilt.
3057 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
3058 (ENDFILE_SPEC): Define.
3059 (OBJECT_FORMAT_MACHO): Define.
3060 (EH_FRAME_SECTION_ASM_OP): Define.
3061 * crtstuff.c: Handle MACHO.
3063 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
3065 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
3067 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
3069 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
3070 (_fpadd_parts): Get sign right for 0.
3072 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3074 * ginclude/varargs.h: Add support for C4x target.
3075 * ginclude/stdargs.h: Likewise.
3077 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
3079 * alpha.c (alpha_return_addr): SET should be VOIDmode.
3080 (alpha_emit_set_long_const): Rewrite to be callable from reload
3082 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
3083 * alpha.md (movdi): Likewise.
3085 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
3087 * arm.c (add_constant): New parameter address_only, change caller.
3088 Set it non-zero if taking the address of an item in the pool.
3089 (arm_reorg): Handle cases where we need the address of an item in
3092 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
3094 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
3095 memory addresses that are not in standard canonical form.
3097 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
3099 * README.C4X: New file with information about the c4x ports.
3100 * ginclude/va-c4x.h: New file for c4x varargs support.
3101 * config/c4x: New directory with c4x port files.
3103 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
3105 * reload.c (find_reloads): Do not replace a pseudo with
3106 (MEM (reg_equiv_addr)) in the initializing insn for the
3109 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
3111 * toplev.c (rest_of_compilation): Set bct_p on second call to
3113 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
3115 (strength_reduce): Only call analyze_loop_iterations and
3116 insert_bct if bct_p set.
3117 (check_dbra_loop): Fix typo.
3118 (insert_bct): Use word_mode instead of SImode.
3119 (instrument_loop_bct): Likewise. Do not delete iteration count
3120 condition code generation insn. Initialize iteration count before
3122 * rtl.h (loop_optimize): Update prototype.
3124 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
3125 not doubleword aligned.
3127 * rs6000.c (optimization_options): New function.
3128 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
3129 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
3130 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
3131 first; cr1 can be used for FP record condition insns.
3133 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
3135 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
3138 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
3141 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
3143 (block_move_call): New function: Call a library routine to copy a
3145 (m32r_expand_block_move): New function: Expand a "movstrsi"
3146 pattern into a sequence of insns.
3147 (m32r_output_block_move): New function: Expand a
3148 "movstrsi_internal" pattern into a sequence of assembler opcodes.
3149 (m32r_block_immediate_operand): New function: Return true if the
3150 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
3152 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3154 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
3156 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
3158 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3160 * regmove.c (copy_src_to_dest): Check that modes match.
3162 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
3164 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
3166 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
3168 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
3169 narrower than FLOAT_REGS.
3171 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3173 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
3175 * Makefile.in (old_gxx_include_dir): removed
3177 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
3179 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
3182 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
3183 (sh_handle_pragma): Change function arguments to match new
3184 specification for HANDLE_PRAGMA.
3186 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3188 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
3190 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
3191 When generating output, initialize missing struct member to zero.
3193 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3195 * regmove.c (copy_src_to_dest): Don't copy if that requires
3196 (a) new register(s).
3198 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3200 * global.c (reg_allocno): Now static.
3201 * reload1.c (reg_allocno): Delete declaration.
3202 (order_regs_for_reload): Take no arguments. Don't treat regs
3203 allocated by global differently than those allocated by local-alloc.
3205 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
3207 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
3208 condition, fix format strings.
3209 (output_function_epilogue): Likewise.
3211 * m68k/m68k.c: Don't include <stdlib.h> directly.
3213 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
3215 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
3216 mem_first_set, mem_last_set; because 0 can be a CUID.
3217 (oprs_unchanged_p): Use new definition.
3218 (record_last_reg_set_info): Likewise.
3219 (record_last_mem_set_info): Likewise.
3220 (compute_hash_table): Likewise.
3222 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
3224 * rs6000.c (output_epilogue): Handle Chill.
3226 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3227 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3229 * combine.c (make_extraction): If no mode is specified for
3230 an operand of insv, extv, or extzv, default it to word_mode.
3231 (simplify_comparison): Similarly.
3232 * expmed.c (store_bit_field): Similarly.
3233 (extract_bit_field): Similarly.
3234 * function.c (fixup_var_regs_1): Similarly.
3235 * recog.c (validate_replace_rtx_1): Similarly.
3236 * mips.md (extv, extzv, insv expanders): Default modes for most
3237 operands. Handle TARGET_64BIT.
3238 (movdi_uld, movdi_usd): New patterns.
3240 * pa.c (emit_move_sequence): Do not replace a pseudo with its
3241 equivalent memory location unless we have been provided a scratch
3242 register. Similarly do not call find_replacement unless a
3243 scratch register has been provided.
3245 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3247 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
3250 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
3252 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
3253 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
3254 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
3255 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
3256 * c-decl.c (init_decl_processing): Update accordingly.
3257 * expr.c (expand_builtin): Likewise.
3259 * rtl.h (global_rtl): Add cfa entry.
3260 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
3261 (LAST_VIRTUAL_REGISTER): Update.
3262 * emit-rtl.c (global_rtl): Add cfa entry.
3263 (init_emit): Initialize it.
3264 * function.c (cfa_offset): New.
3265 (instantiate_virtual_regs): Initialize it.
3266 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
3267 (expand_function_end): Call expand_eh_return.
3268 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
3270 * except.c (current_function_eh_stub_label): Kill.
3271 (current_function_eh_old_stub_label): Likwise; update all references.
3272 (expand_builtin_set_return_addr_reg): Kill.
3273 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
3274 (expand_builtin_set_eh_regs): Kill.
3275 (eh_regs): Produce a third reg for the actual handler address.
3276 (eh_return_context, eh_return_stack_adjust): New.
3277 (eh_return_handler, eh_return_stub_label): New.
3278 (init_eh_for_function): Initialize them.
3279 (expand_builtin_eh_return, expand_eh_return): New.
3280 * except.h: Update prototypes.
3281 * flow.c (find_basic_blocks_1): Update references to the stub label.
3282 * function.h (struct function): Kill stub label elements.
3284 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
3285 register number is one that would be in the previous window.
3286 Provide a dummy definition for non-windowed targets.
3287 (get_reg_addr): New function.
3288 (get_reg, put_reg, copy_reg): Use it.
3289 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
3290 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
3292 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
3293 (alpha_init_expanders): Initialize it.
3294 (alpha_expand_epilogue): Use it.
3295 * alpha.h: Declare it.
3296 * alpha.md (eh_epilogue): New.
3298 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
3299 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
3301 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
3303 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
3306 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3308 * except.h (struct eh_entry): Add false_label field.
3309 (end_catch_handler): Add prototype.
3310 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
3311 (start_catch_handler): When using old style exceptions, issue
3312 runtime typematch code before continuing with the handler.
3313 (end_catch_handler): New function, generates label after handler
3314 if needed by older style exceptions.
3315 (expand_start_all_catch): No need to check for new style exceptions.
3316 (output_exception_table_entry): Only output the first handler label
3317 for old style exceptions.
3318 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
3319 mechanism into one function, if a runtime matcher is provided.
3321 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3323 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
3325 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
3327 * integrate.c (copy_decl_list): Fix typo.
3329 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3331 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
3334 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
3336 * version.c: Bump for snapshot.
3338 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
3340 * version.c: Bump for snapshot.
3342 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
3344 * version.c: Bump for snapshot.
3346 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3348 * invoke.texi (C Dialect Options): Put back missing @end itemize.
3350 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3352 * configure.in: remove usage of `!' to negate the result of a
3353 command; some common shells do not support it
3355 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3357 * configure.in: in sparc9-sol2 config, use 'if test' not
3359 * configure: Rebuilt.
3361 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
3363 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
3364 (CPP_CPU_DEFAULT_SPEC): Likewise.
3365 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
3366 for arch64 libfuncs.
3368 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
3371 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3373 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
3375 * collect2.c: Don't declare `sys_siglist' here.
3376 (my_strsignal): Prototype and define new function. Use it in
3377 place of `sys_siglist' hacks.
3379 * mips_tfile.c: Likewise.
3381 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
3382 (GCC_NEED_DECLARATIONS): Likewise.
3384 * system.h (strsignal): Prototype it, if necessary.
3385 (sys_siglist): Declare it, if necessary.
3387 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3389 * loop.c (move_movables): While removing insn sequences, preserve
3390 the next pointer of the most recently deleted insn when we skip
3393 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
3395 * objc/config-lang.in: Do not output the name of the selected
3396 thread file when building the front-end. The Makefile for the
3397 runtime library will do this.
3399 * objc/Make-lang.in: Do not build the runtime library or install
3400 the Objective C header files. The Makefile for the runtime
3401 library will do this.
3403 * objc/Makefile.in (all.indirect): Only build the front-end.
3404 (compiler): Rename to `frontend'.
3405 (obj-runtime): Remove target.
3406 (copy-headers): Likewise.
3407 (clean): No need to remove `libobjc.a' any longer.
3409 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
3411 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
3412 supported with -mcpu=xxx.
3414 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3416 * flow.c (mark_set_1): Recognize multi-register structure return
3417 values in CALL insns.
3418 (mark_used_regs): Likewise.
3419 (count_reg_sets_1): Likewise.
3420 (count_reg_references): Likewise.
3421 * rtlanal.c (note_stores): Likewise.
3422 (reg_overlap_mentioned_p): Likewise.
3423 * haifa-sched.c (check_live_1): Likewise.
3424 (update_live_1): Likewise.
3425 (sched_analyze_1): Likewise.
3426 (sched_note_set): Likewise.
3427 (birthing_insn_p): Likewise.
3428 (attach_deaths): Likewise.
3430 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
3433 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
3435 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
3437 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3439 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
3441 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3443 * configure.in: Add check for GAS subsection -1 support.
3444 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
3445 * configure config.in: Rebuilt.
3446 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
3447 SImode is subsection -1 works, else use DImode.
3448 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
3449 subsection -1 works.
3450 * config/sparc/sparc.c (sparc_output_addr_vec,
3451 sparc_output_addr_diff_vec): Use them if defined.
3453 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
3455 * tree.h (DECL_ORIGIN): New macro.
3456 * integrate.c (copy_and_set_decl_abstract_origin): New function.
3457 (copy_decl_list): Use it.
3458 (integrate_parm_decls): Likewise.
3459 (integrate_decl_tree): Likewise.
3460 * dwarf2out.c (decl_ultimate_origin): Simplify.
3461 * dwarfout.c (decl_ultimate_origin): Likewise.
3462 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
3463 (pushdecl): Likewise.
3465 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
3467 * config/rs6000/rs6000.c (output_epilog): Add Java support.
3469 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
3471 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
3473 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
3475 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
3476 empty or has a single entry.
3478 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
3479 before calling reg_to_stack.
3481 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
3483 * alpha.c (alphaev5_insn_pipe): Abort on default case.
3484 (alphaev5_next_group): Swallow CLOBBERs and USEs.
3486 * c-tree.h (warn_long_long): Declare it.
3488 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
3490 * emit-rtl.c (gen_lowpart_common): Disable optimization of
3491 initialized float-int union if the value is a NaN.
3493 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
3495 * c-lex.c (real_yylex): Don't warn about long long constants if
3496 we're allowing long long
3498 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3500 * except.h (current_function_eh_stub_label): Declare.
3501 (current_function_eh_old_stub_label): Declare.
3502 * function.h (struct function): New members eh_stub_label and
3504 * except.c (current_function_eh_stub_label): New variable.
3505 (current_function_eh_old_stub_label): New variable.
3506 (init_eh_for_function): Clear them.
3507 (save_eh_status): Save them.
3508 (restore_eh_status): Restore them.
3509 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
3510 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
3511 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
3512 make an edge from the block that contains it to the block starting
3513 with the label if this label is one of the eh stub labels.
3514 If eh stub labels exist, show they are reachable from the last block
3517 * reload1.c (reload): Break out several subroutines and make some
3519 (calculate_needs_all_insns): New function, broken out of reload.
3520 (calculate_needs): Likewise.
3521 (find_reload_regs): Likewise.
3522 (find_group): Likewise.
3523 (find_tworeg_group): Likewise.
3524 (something_needs_reloads): New global variable, formerly in reload.
3525 (something_needs_elimination): Likewise.
3526 (caller_save_spill_class): Likewise.
3527 (caller_save_group_size): Likewise.
3528 (max_needs): Likewise.
3529 (group_size): Likewise.
3530 (max_groups): Likewise.
3531 (max_nongroups): Likewise.
3532 (group_mode): Likewise.
3533 (max_needs_insn): Likewise.
3534 (max_groups_insn): Likewise.
3535 (max_nongroups_insn): Likewise.
3536 (failure): Likewise.
3538 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
3540 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
3542 * loop.c (load_mems): Copy rtx for output mem.
3544 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
3546 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
3547 mips1 or mips2 either.
3549 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
3551 * pa.c (pa_reorg): New marking scheme for jumps inside switch
3553 (pa_adjust_insn_length): Update to work with new marking scheme
3554 for jumps inside switch tables.
3555 * pa.md (switch_jump): Remove pattern.
3556 (jump): Handle jumps inside jump tables.
3558 * Makefile.in (profile.o): Depend on insn-config.h
3560 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
3562 * iris6.h (DWARF2_UNWIND_INFO): Undef.
3564 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3566 Add preliminary native sparcv9 Solaris support.
3567 * configure.in: Recognize sparv9-*-solaris2*
3568 * configure: rebuilt
3569 * config.sub: Recognize sparcv9 just like sparc64.
3570 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
3571 config/sparc/sol2-cn.asm: Macroize so it can be shared between
3572 32-bit and 64-bit Solaris systems.
3573 * config/sparc/t-sol2: Assemble those with cpp.
3574 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
3575 (*TF*_LIBCALL): If ARCH64 use V9 names.
3576 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
3578 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3580 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
3581 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
3583 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
3585 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
3586 to Pmode if CASE_VECTOR_MODE is something else.
3588 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
3590 * prefix.c (update_path): Correctly handle cases where PATH is
3591 a substring of the builtin prefix, but specifies a different
3594 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3596 * expr.c: Corrected comment about what MOVE_RATIO does.
3597 * config/alpha/alpha.h: Ditto.
3598 * config/1750a/1750a.h: Ditto.
3599 * config/clipper/clipper.h: Ditto.
3600 * config/i386/i386.h: Ditto.
3602 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
3604 * configure.in (m68k-next-nextstep3*): Use collect2.
3605 Similarly for x86 NeXT configurations.
3606 * configure: Rebuilt.
3608 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
3610 * configure.in: Don't assume srcdir is .../gcc
3611 * configure: Rebuilt.
3613 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
3615 * global.c: Update comments.
3616 (global_alloc): Assign allocation-numbers
3617 even for registers allocated by local_alloc in case
3618 they are later spilled and retry_global_alloc is called.
3619 (mark_reg_store, mark_reg_clobber,
3620 mark_reg_conflicts, mark_reg_death): Always record a
3621 conflict with a pseudo register even if it has been
3622 assigned to a hard register.
3623 (dump_conflicts): Don't list pseudo registers already assigned to
3624 a hard register as needing to be allocated, but do list their
3626 * local-alloc.c: Update comment.
3628 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
3630 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
3631 * configure: Rebuilt.
3633 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
3635 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
3637 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
3638 for all targets that set -msoft-float.
3640 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3642 * toplev.c (print_switch_values): Make static to match prototype.
3644 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
3646 * configure.in: If we are unable to find the "gnatbind" program,
3647 then do not configure the ada subdir.
3648 * configure: Rebuilt.
3650 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
3652 * version.c: Bump for snapshot.
3654 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
3656 * version.c: Bump for snapshot.
3658 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3660 * Makefile.in (toplev.o): Depend on $(EXPR_H).
3661 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
3663 * gansidecl.h: Define ATTRIBUTE_NORETURN.
3665 * genattrtab.c: Have insn-attrtab.c include toplev.h.
3667 * genextract.c: Have insn-extract.c include toplev.h.
3669 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
3671 * toplev.c: Include expr.h.
3672 (really_sorry, fancy_abort): Remove prototypes.
3673 (set_target_switch): Add argument in prototype.
3674 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
3675 (v_really_sorry): Likewise.
3676 (print_version, print_single_switch, print_switch_values): Make
3677 static and add prototype arguments.
3678 (decl_printable_name): Add prototype arguments.
3679 (lang_expand_expr_t): New typedef.
3680 (lang_expand_expr): Declare as a lang_expand_expr_t.
3681 (incomplete_decl_finalize_hook): Add prototype argument.
3682 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
3683 (botch): Likewise for variable `s'.
3684 (rest_of_type_compilation): Mark variables `type' and `toplev'
3685 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
3686 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
3687 (display_help): Make variable `i' an `unsigned long'.
3688 (main): Remove unused parameter `envp'.
3689 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
3690 Cast -1 when comparing it with a `size_t'.
3692 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
3693 prototype with ATTRIBUTE_NORETURN.
3694 (fatal_insn_not_found, fatal_insn, really_sorry,
3695 push_float_handler, pop_float_handler): Add prototypes.
3696 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
3697 (do_abort, botch): Add prototypes.
3699 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
3701 * final.c (final): If a label is reached only from a single jump,
3702 call NOTICE_UPDATE_CC on the jump and its predecessor before
3703 emitting the insn after the label.
3705 * i386.h: Add AMD K6 support.
3706 Change TARGET_* macros to use table lookup.
3707 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
3708 (ADJUST_COST): Change definition to call function in i386.c.
3709 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
3710 * i386.c: Add AMD K6 support.
3711 Add constants for feature tests used by TARGET_* macros.
3712 (split_di): If before reload, call gen_lowpart and gen_highpart.
3713 (x86_adjust_cost): New function.
3714 (put_jump_code): New function.
3715 (print_operand): New codes 'D' and 'd'.
3716 * i386.md: New insn types. New insn attribute "memory".
3717 Redefine scheduling parameters to use new types and add AMD K6
3718 support. Explicitly set type of most insns.
3719 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
3720 Pro and K6 prefer movl $1,reg to incl reg.
3721 (adddi3, subdi3): Set cc_status.
3722 (DImode shift patterns): Change label counters from HOST_WIDE_INT
3723 to int; x86 can't have more than 2^31 DImode shifts per file.
3724 (setcc): Combine all setcc patterns. Allow writing memory.
3725 Combine all jump patterns using match_operator.
3726 (*bzero): Name pattern. Emit mutliple stos instructions when that
3727 is faster than rep stos.
3728 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
3731 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
3733 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
3736 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
3738 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
3739 not whatever we're generating now.
3741 * alpha.c (set_frame_related_p, FRP): New.
3742 (alpha_expand_prologue): Mark frame related insns.
3743 (alpha_expand_epilogue): Likewise, but with a null FRP.
3744 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
3745 * alpha.md (exception_receiver): New.
3746 * alpha/crtbegin.asm (.eh_frame): New beginning.
3747 (__do_frame_setup, __do_frame_takedown): New.
3748 * alpha/crtend.asm (.eh_frame): New ending.
3749 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
3750 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
3751 (ASM_FILE_START): Don't emit .file for dwarf2.
3753 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
3754 * rtl.c (reg_note_name): Likewise.
3755 * rtl.texi (REG_NOTES): Likewise.
3756 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
3759 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
3761 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
3762 * i386.md (movsf, movdf, movxf): Validate memory address returned
3763 from force_const_mem. Kill useless REG_EQUAL setting code.
3765 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
3767 * m68k.md (zero_extendsidi2): Fix typo.
3769 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
3771 * configure.in: Removed references to the removed file
3772 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
3773 * arm*-*-netbsd* and ns32k-*-netbsd*.
3774 * config/i386/xm-netbsd.h: Removed unnecessary file.
3775 * config/m68k/xm-netbsd.h: Likewise.
3776 * config/sparc/xm-netbsd.h: Likewise.
3777 * config/mips/xm-netbsd.h: Likewise.
3779 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
3781 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
3782 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
3784 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
3785 for exact section attributions.
3787 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
3789 * i386/crtdll.h (CPP_PREDEFINES): Define.
3791 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
3793 * m68k.md (5200 movqi): Do not allow byte sized memory references
3795 * m68k.c (output_move_qimode): Do not use byte sized operations on
3798 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
3799 explicit rules for building. Similarly for alloca, vfprintf,
3800 choose-temp and mkstemp, getopt, getopt1, and obstack.
3801 (INCLUDES): Add $(srcdir)/../include.
3802 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
3803 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
3805 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
3807 * gcc.c (do_spec_1): [case 'o'] Account for
3808 lang_specific_extra_outfiles.
3809 (main): Correctly clear all slots in outfiles for
3810 lang_specific_extra_outfiles. Set input_file_number before
3811 calling lang_specific_pre_link.
3813 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
3815 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
3817 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3819 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
3821 (sparc_output_deferred_case_vectors): If no work to do, return.
3822 Fix thinko in Sept 1 change.
3824 1998-09-03 SL Baur <steve@altair.xemacs.org>
3826 * Makefile.in: add semicolon in BISON definition for portability.
3828 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
3830 * config/nextstep.c (handle_pragma): Correct name of third
3833 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
3835 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
3836 * config/m32r/m32r.h: Make register 17 be fixed.
3837 * config/m32r/m32r.c: Use SImode for cc operations.
3839 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
3841 * invoke.texi (Warning Options): Add -Wnon-template-friend
3844 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
3846 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
3848 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
3850 * rs6000.md (movsf): Disable explicit secondary-reload-like
3851 functionality if TARGET_POWERPC64.
3852 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
3855 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
3857 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
3858 and term.h from fixinc.wrap.
3860 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3862 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
3863 safe to include both string.h and strings.h together.
3864 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
3865 which headers to search for function declarations. Continue to
3866 prefer string.h over strings.h when both are not acceptable.
3868 * acconfig.h (STRING_WITH_STRINGS): Add stub.
3870 * configure.in: Call GCC_HEADER_STRING.
3872 * system.h: Test STRING_WITH_STRINGS when deciding which headers
3873 to include. Continue to prefer string.h over strings.h when both
3876 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3878 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
3879 not assume top 32-bits of symbolic addresses are zero if
3882 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
3884 * ginclude/va-alpha.h: Protect entire second portion of the
3885 file against double inclusion.
3887 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
3889 Added support for the Boehm's garbage collector.
3890 * configure.in: Handle --enable-objc-gc.
3891 * configure: Rebuilt.
3892 * Makefile.in (CHECK_TARGETS): Add check-objc.
3893 (check-objc): New rule.
3894 * objc/Make-lang.in: Build a different Objective-C library that
3895 runs with the Boehm's collector.
3896 * objc/encoding.c (objc_round_acc_size_for_types): New function.
3897 * objc/encoding.c: Correctly compute the size of compound types in
3898 the presence of bitfields. Skip the variable name of the type if
3899 any. Added support for long long.
3900 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
3901 (_F_GCINVISIBLE): New mask.
3902 * objc/gc.c: New file. Compute the type memory mask associated with
3903 a class based on the runtime information.
3904 * objc/misc.c: Added the hooks that use the Boehm's collector
3905 allocation functions.
3906 * objc/objc-act.c (build_class_template): Generate a new class
3907 member (gc_object_type) to hold the class' type memory mask.
3908 (build_shared_structure_initializer): Initialize the new member to
3910 (encode_complete_bitfield): New function. Generate the new
3912 (encode_field_decl): Generate the new encoding only for the GNU
3914 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
3916 (class_get_gc_object_type): New function to mark a pointer instance
3917 variable as a weak pointer.
3918 * objc/objc-features.texi: New file.
3919 * objc/objc.h (gc_object_type): New class member.
3920 * objc/objects.c (class_create_instance): Create a typed memory
3921 object when compiled with Boehm's collector support.
3922 * objc/sendmsg.c (__objc_init_install_dtable): Call
3923 __objc_send_initialize instead of setting the initialize flag.
3924 (__objc_send_initialize): Call __objc_generate_gc_type_description
3925 to generate the class type memory mask. Rewrite the code that
3926 sends the +initialize so that it is called only once (bug report
3927 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
3928 * testsuite/objc: New testsuite for Objective-C type encoding.
3929 * testsuite/lib/objc-torture.exp: New file.
3930 * testsuite/lib/objc.exp: New file.
3932 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
3934 * jump.c (jump_optimize): In if/then/else transformations, add
3935 another call to modified_between_p for the jump insn.
3937 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
3939 * fix-header.c (symlink): Treat like readlink.
3941 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3943 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
3946 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
3948 * config/nextstep.h: Update HANDLE_PRAGMA macro.
3949 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
3950 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
3952 * config/nextstep.c (handle_pragma): Take three arguments, as per
3953 the new HANDLE_PRAGMA macro specification.
3954 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
3955 per the new HANDLE_PRAGMA macro specification.
3956 * config/i960/i960.c (process_pragma): Take three arguments, as
3957 per the new HANDLE_PRAGMA macro specification.
3959 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
3961 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
3962 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
3963 if unknown pragmas are encountered.
3964 (handle_sysv_pragma): Interpret return code from
3965 handle_pragma_token (). Return success/failure indication rather
3966 than next unprocessed character.
3967 (pragma_getc): New function: retrieves characters from the
3968 input stream. Defined when HANDLE_PRAGMA is enabled.
3969 (pragma_ungetc): New function: replaces characters back into the
3970 input stream. Defined when HANDLE_PRAGMA is enabled.
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