1 Thu Nov 5 04:03:06 1998 Richard Henderson <rth@cygnus.com>
3 * alpha.md (addsi3, subsi3): No new temporaries once cse is
6 Thu Nov 5 03:29:19 1998 Richard Henderson <rth@cygnus.com>
8 * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
9 to expose this midpoint to CSE.
11 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
13 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
15 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
17 * configure.in: Bring over gcc2 change of Nov 19 1997.
19 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
21 * toplev.c (output_lang_identify): Make definition dependent on
22 ASM_IDENTIFY_LANGUAGE.
24 * print-rtl.c (spaces): Make static.
26 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
28 * extend.texi: Clarify proper uses for register clobbers in asms.
30 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
32 * recog.h (enum op_type): Define.
33 (constrain_operands): Adjust prototype.
34 (recog_op_type): Declare new variable.
35 * recog.c (recog_op_type): New variable.
36 (insn_invalid_p): Allow modifying an asm statement after reload.
37 (extract_insn): Set up recog_op_type.
38 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
39 Don't compute operand types, use recog_op_type.
40 Use the information computed by extract_insn instead of the previous
41 method of finding it by insn code number.
42 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
43 * reorg.c (fill_slots_from_thread): Likewise.
44 * reload1.c (reload_as_needed): Likewise.
45 (gen_reload): Likewise.
46 (inc_for_reload): Likewise.
47 (reload_cse_simplify_operands): Likewise.
48 Use the information computed by extract_insn instead of the previous
49 method of finding it by insn code number.
50 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
52 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
53 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
54 Use the information computed by extract_insn instead of the previous
55 method of finding it by insn code number.
56 * regmove.c (find_matches): Likewise. Change meaning of the return
57 value to be nonzero if the optimization can be performed, zero if
58 not. All callers changed.
59 Shorten some variable names to fix formatting problems.
60 (regmove_optimize): Shorten some variable names to fix formatting
62 Use the information computed by extract_insn instead of the previous
63 method of finding it by insn code number.
64 * regclass.c (scan_one_insn): Likewise.
65 (record_reg_classes): Don't compute operand types, use recog_op_type.
66 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
67 recog_constraints instead.
69 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
71 * rtl.h (flow2_completed): Declare.
72 * flow.c (flow2_completed): Definition.
73 * toplev.c (rest_of_compilation): Set and clear flow2_completed
76 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
78 * Makefile.in (libcpp.a): Ranlib libcpp.a
80 * cppulp.c (user_label_prefix): Initialize.
82 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
84 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
85 at a RETURN if current_function_sp_is_unchanging is set.
87 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
89 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
91 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
93 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
94 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
95 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
96 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
97 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
98 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
100 (LIB_SPEC): Handle -mno-cyginw option.
101 (LINK_SPEC): Handle -mdll.
103 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
105 * reload.c (find_reloads): Fix test for usage by other reload
106 to handle secondary reloads properly.
108 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
110 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
111 intermediate structure which has exactly the members provided by
112 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
113 static intermediate structure.
115 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
116 from the intermediate structure. Do the same analogous fix in
117 the case where ELIMINABLE_REGS is not defined.
119 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
121 * pa.h (SELECT_SECTION): Fix thinko.
123 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
125 * dwarf2out.c (output_call_frame_info): Comments on last change.
127 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
129 * arm.c (add_constant): When taking the address of an item in the
130 pool, get the mode of the item addressed.
132 * arm.c (final_prescan_insn case INSN): If an insn doesn't
133 contain a SET or a PARALLEL, don't consider it for conditional
136 Restore ABI compatibility for NetBSD.
137 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
139 (RETURN_IN_MEMORY): Likewise.
141 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
143 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
144 (m32r_output_block_move): Rewrite bytes < 4 handling.
146 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
148 * configure.in: Call AC_FUNC_VFORK.
150 * collect2.c: Define VFORK_STRING as a printable string for
151 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
152 defined, include vfork.h. If VMS is defined, define vfork()
153 appropriately. Remove vfork check on USG, we're using autoconf.
154 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
155 checking locally what string to pass.
156 (scan_prog_file): Likewise.
157 (scan_libraries): Likewise.
159 * gcc.c: Remove vfork check on USG, we're using autoconf.
160 Besides, no calls to vfork/fork occur in this file.
162 * protoize.c: Likewise.
164 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
166 * configure.in (DEFAULT_LINKER): renamed from LD
167 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
168 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
171 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
173 * BUGS: fix the regexp for `more' to find the appropriate node.
174 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
176 * BUGS: added link to the WWW FAQ
178 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
180 * version.c: Bump for snapshot.
182 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
184 * From Christian Gafton:
185 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
186 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
187 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
189 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
191 * c-common.c (c_get_alias_set): Allow all type-punning through
192 unions. Don't get confused about the type of a bit-field, despite
193 the antics of build_modify_expr.
195 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
197 * fixinc.sco: Paramaterize #include_next values.
198 * fixinc/fixinc.sco: Likewise.
200 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
202 * toplev.c (rest_of_compilation): No longer set reload_completed.
203 * reload1.c (reload): Set it here. Perform instruction splitting
204 after reload has completed if we will be running the scheduler
207 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
209 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
210 EH region if exceptions are enabled and we're performing cross
212 (find_cross_jump): Exit loop if the insns are in different EH regions.
214 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
216 * dwarf2out.c (output_call_frame_info): Use
217 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
219 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
221 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
222 * c-common.c (check_format_info): Don't check for the 'x'
223 format character twice, instead check for 'x' and 'X'
225 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
227 * configure.in (assembler features): Also make gas is configured if
228 we find it in the souce tree.
230 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
232 * i386.c (i386_comp_type_attributes): Compare whether the
233 attributes are defined, not their tree nodes.
235 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
237 * configure.in (gxx_include_dir): bitten by autoconf quoting
241 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
243 * configure.in: Ignore non-absolute value in $AS.
245 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
247 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
249 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
251 * configure.in (msdosdjgpp): Set exeext and target_alias.
253 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
255 * flow.c (XNMALLOC): New macro.
256 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
258 (add_edge, add_edge_to_label): New static functions.
259 (free_bb_memory): New function.
260 (flow_delete_insn): Delete function.
261 (basic_block_drops_in): Delete variable.
262 (find_basic_blocks): Allocate and initialize basic_block_head,
263 basic_block_succ. Don't allocate basic_block_drops_in.
264 Call free_bb_memory at the beginning.
265 (find_basic_blocks_1): Don't do multiple passes.
266 Delete code to compute basic_block_drops_in.
267 After calling make_edges, mark blocks reached by current block live.
268 Update test for unreachable live blocks.
269 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
271 Simplify to call add_edge_to_label when a LABEL_REF is found.
272 (make_edges): Simplify to call add_edge_to_label instead of
273 mark_label_ref most of the time.
274 Compute here whether control drops into the next block.
275 (delete_unreachable_blocks): Return void. All callers changed.
276 Delete unreachable blocks in reverse order.
277 After deleting all unreachable blocks, renumber the remaining ones
278 and update n_basic_blocks.
279 (delete_block): Speed up deletion a bit.
280 Don't set basic_block_drops_in for deleted blocks.
281 (free_basic_block_vars): Don't free basic_block_drops_in.
282 (life_analysis_1): Update to use new edge representation.
283 (dump_flow_info): Delete code to print basic block info; call
284 dump_bb_data instead.
285 (compute_preds_succs): Delete code to recompute basic_block_drops_in
286 and uid_block_number.
287 Simply copy the previously computed cfg.
288 (dump_bb_data): New arg LIVE_INFO. All callers changed.
289 Print register lifetime information if LIVE_INFO is nonzero.
290 * basic-block.h (dump_bb_data): Adjust prototype.
291 * gcse.c (gcse_main): Update call to dump_bb_data.
292 * rtl.h (free_bb_memory): Declare.
293 * toplev.c (rest_of_compilation): Call free_bb_memory.
295 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
296 (update_eliminable_offsets): Don't compute it.
297 (set_initial_elim_offsets): Don't initialize it.
298 Break out some code into set_initial_label_offsets so the rest of
299 this function can be called from reload_as_needed.
300 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
301 ELIMINABLE_REGS isn't.
302 (set_initial_label_offsets): New function, broken out of
303 set_initial_elim_offsets.
304 (set_offsets_for_label): New function, broken out of set_label_offsets
305 and reload_as_needed.
306 (reload): Call the two new functions.
307 (reload_as_needed): Call set_initial_elim_offsets instead of
308 duplicating the code. Likewise for set_offsets_for_label.
310 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
311 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
312 any hard reg, reg_reloaded_dead contains valid data.
314 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
316 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
317 "stdcall" and "cdecl" attributes.
319 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
321 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
322 handle deleted no-op moves of hard registers.
323 * haifa-sched.c (update_flow_info): Likewise.
325 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
327 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
328 of the sequences to reload the HILO register which do not actually
331 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
333 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
335 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
337 * except.c (emit_eh_context): Make the EH context register stay alive
338 at -O0 so stupid.c doesn't get confused.
340 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
342 * emit-rtl.c (try_split): Do not try to split a BARRIER.
344 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
345 Jeffrey A Law (law@cygnus.com)
347 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
348 (zero_extendsidi2): Use # in output template and handle completely by
350 (zero_extend splitters): New define_splits.
351 (ashiftrt_32): New pattern.
353 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
355 * tree.c (append_random_chars): New fn.
356 (get_file_function_name_long): Use it.
358 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
360 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
361 (LIBCPP_OBJS): New. Add cppulp.o.
362 (cppmain, fix-header): Depend on and use libcpp.a.
363 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
364 of the individual object files.
365 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
368 * cccp.c (user_label_prefix): New.
369 (main): Set it off -f*leading-underscore.
370 (special_symbol): Use it.
371 * cpplib.c (special_symbol): Likewise.
372 (cpp_handle_option): Handle -f*leading-underscore.
373 * cppulp.c: New file.
375 * output.h (user_label_prefix): Declare it.
376 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
377 * toplev.c (f_options, main): Handle -f*leading-underscore.
379 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
380 referencing USER_LABEL_PREFIX directly.
381 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
382 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
383 * final.c (asm_fprintf): Use user_label_prefix instead.
384 * arm/thumb.c (thumb_print_operand): Likewise.
386 * gcc.c (default_compilers): Pass -f*leading-underscore on to
387 cpp wherever appropriate.
389 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
391 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
392 specific compiler switches.
394 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
396 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
399 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
401 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
402 structure which has exactly the members provided by EXTRA_SPECS.
403 Xmalloc() the real `extra_specs', and initialize it from this
404 intermediate structure.
406 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
408 * mips.h (EXTRA_SPECS): Likewise.
410 * sparc.h (EXTRA_SPECS): Likewise.
412 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
414 * function.c (purge_addressof_1): Instead of aborting when a
415 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
416 work just put the ADDRESSOF on stack. Otherwise remember all such
417 successfull replacements, so that exactly the same replacements
418 can be made on the REG_NOTEs. Remove the special case for CALL
420 (purge_addressof_replacements): New variable.
421 (purge_addressof): Clear it at end.
423 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
425 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
426 (lang_init): Call check_newline always.
427 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
428 cpp_start_read, set yy_cur and yy_lim to read from
429 parse_in.token_buffer, so that we'll see the first #line
431 * cpplib.c (cpp_start_read): finclude the main input file
432 before processing -include/-imacros. Process -imacros and
433 -include separately, and handle -include by stacking a
434 buffer for the file in question as if it'd been #included.
435 * toplev.c (documented_lang_options) Recognize -H when
438 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
440 * cpplib.c: Merge do_once into do_pragma. Break file handling
441 code out of do_include.
442 Move append_include_chain, deps_output,
443 file_cleanup, redundant_include_p, import_hash,
444 lookup_import, add_import, read_filename_string, read_name_map,
445 open_include_file, finclude, safe_read to cppfiles.c.
446 Move prototypes for deps_output, append_include_chain,
447 finclude to cpplib.h. Move definition of struct
448 file_name_list there also.
450 * cppfiles.c: New file. Contains all the above functions
451 broken out of cpplib.c; also hack_vms_include_specification
452 from cccp.c and find_include_file, a new function broken out of
455 * Makefile.in (cppmain): Depend on cppfiles.o.
456 (fix-header): Likewise.
457 (cppfiles.o): New target.
458 * configure.in (--enable-c-cpplib): Add cppfiles.o to
459 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
461 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
463 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
464 if pending_types is non-zero.
465 (dwarfout_finish): Verify pending_types is zero before finishing.
467 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
469 * expr.c (convert_move): Use shifts to perform the move if a
470 suitable extend pattern cannot be found. Code written by
471 Richard Henderson <rth@cygnus.com>.
473 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
475 * regclass.c (renumber, regno_allocated): New static variables, moved
476 out of allocate_reg_info.
477 (allocate_reg_info): Move these two variables outside the function.
478 Move code to free memory into new function free_reg_info.
479 (free_reg_info): New function, broken out of allocate_reg_info.
480 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
481 * rtl.h (allocate_reg_info): Don't declare.
482 (free_reg_info): Declare.
484 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
486 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
488 * toplev.c (compile_file): Temporarily revert last change.
490 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
492 * c-typeck.c (convert_for_assignment): Parenthesize.
494 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
496 * reload1.c (delete_output_reload): Avoid ambigous else.
498 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
500 * toplev.c (compile_file): Call allocate_reg_info to free register
502 * rtl.h (allocate_reg_info): Declare.
504 * PROJECTS: Remove entry for local spilling.
506 * final.c (cleanup_subreg_operands): New function.
507 (final_scan_insn): Use it.
508 (alter_subreg): Clear the "used" field when we turn a SUBREG into
510 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
511 operands when reload has finished.
512 * reload.h (cleanup_subreg_operands): Declare..
513 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
514 reload. Handled in reload itself.
516 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
518 * reload1.c (verify_initial_offsets): New function.
519 (reload): Call it after reload_as_needed. Also verify that the frame
520 size stays constant during reload_as_needed.
521 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
523 * reload.h (struct insn_chain): Add need_operand_change element.
524 * reload1.c (new_insn_chain): Clear it.
525 (calculate_needs_all_insns): Set it; don't overload need_reload.
526 (reload_as_needed): Use it.
528 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
529 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
530 and reload_address_index_reg_class.
531 (find_reloads_address_1): Likewise.
532 * reload.h (reload_address_base_reg_class,
533 reload_address_index_reg_class): Don't declare.
534 * reload1.c (reg_old_renumber, pseudo_previous_regs,
535 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
536 (used_spill_regs): Now static.
537 (reload_address_base_reg_class, reload_address_index_reg_class,
538 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
539 basic_block_needs, max_needs, group_size, group_mode, max_groups,
540 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
543 (init_reload): Delete code to compute base/index reg classes.
544 (reload): Delete variable J.
545 Delete code to manage basic_block_needs.
546 Don't compute regs_explicitly_used.
547 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
548 pseudo_previous_regs.
549 Initialize bad_spill_regs_global.
550 Don't call order_regs_for_reload here.
551 Don't initialize spill_reg_order and n_spills.
552 Don't forbid explicitly used regs to be used for spill regs.
553 Change main loop to infinite loop, with explicit break statements.
554 Make SOMETHING_CHANGED variable local to that loop.
555 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
556 max_groups_insn, max_nongroups_insn, group_size, group_mode.
557 Make sure spilled_speudos is cleared before calling spill_hard_reg or
559 Don't call dump_needs.
560 Delete code to reset potential_reload_regs.
561 Delete code to terminate loop conditional on the global needs variables
562 showing no further needs.
563 (calculate_needs_all_insns): Return void. All callers changed.
564 Initialize somehing_needs_elimination here, not in reload.
565 Delete avoid_return_reg kludge.
566 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
568 Initialize the group_mode and group_size elements of the arg CHAIN.
569 Delete code to manage basic_block_needs.
570 Operate on elements of CHAIN instead of global variables.
571 Delete avoid_return_reg kludge.
572 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
574 Operate on elements of CHAIN instead of global variables.
575 Delete special SMALL_REGISTER_CLASSES code.
576 Delete spill_failure code; now in new_spill_reg.
577 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
579 Operate on elements of CHAIN instead of global variables.
580 (maybe_mark_pseudo_spilled): New static function.
581 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
583 Operate on elements of CHAIN instead of global variables.
584 Call order_regs_for_reload here, not in reload.
585 Initialize spill_reg_order and n_spills.
586 Simplify test whether an asm insn is involved.
587 Delete spill_failure code; now in new_spill_reg.
588 Call maybe_mark_pseudo_spilled for everything marked as live in
589 CHAIN. Merge CHAIN's used_spill_regs into the global variable
591 (dump_needs): Take CHAIN arg. No longer static, to prevent the
592 compiler from optimizing this function (now unused) away.
593 Operate on elements of CHAIN instead of global variables.
594 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
596 Operate on elements of CHAIN instead of global variables.
597 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
598 take CHAIN arg. All callers changed.
599 Operate on elements of CHAIN instead of global variables.
600 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
601 CHAIN, NONGROUP args. Return void. All callers changed.
602 Verify caller isn't trying to spill a pseudo.
603 Simplify test for illegal reg, just use bad_spill_regs.
604 Generate better error messages.
605 Operate on elements of CHAIN instead of global variables.
606 Mark spilled register in CHAIN's used_spill_regs element.
607 Don't call spill_hard_reg.
608 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
609 Mark spilled hard regs in bad_spill_regs_global.
610 Mark affected pseudos in spilled_pseudos, but don't spill them.
611 (ior_hard_reg_set): New static function.
612 (finish_spills): Return int. All callers changed.
613 Compute spill_reg_order, n_spills and spill_regs here. Also update
614 regs_ever_live for regs used as spills.
615 For every pseudo in spilled_pseudos, spill it and mark the previous
616 hard reg it had in pseudo_previous_regs. Compute which hard regs
617 arseudo): New static function.
618 (order_regs_for_reload): Take CHAIN arg. All callers changed.
619 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
620 hard registers explicitly used across the current insn into the set.
621 Compute hard_reg_n_uses taking only pseudos live across this insn
623 Tweak sorting of potential_reload_regs.
624 (compare_spill_regs): Delete function.
625 (reload_as_needed): Don't sort the spill_regs array, it's computed
626 in proper order in finish_spills.
627 Delete avoid_return_reg kludge.
628 Delete code to manage basic_block_needs.
629 (allocate_reload_reg): Minor speed/readability tweaks.
630 Operate on elements of CHAIN instead of global variables.
631 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
632 Delete avoid_return_reg kludge.
633 Initialize reload_reg_used from CHAIN's used_spill_regs element.
634 Delete unused label FAIL.
635 (reload_combine): Replce reload_address_index_reg_class with
637 Don't use used_spill_regs to determine information about lifetime of
640 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
642 * toplev.c (display_help): Ignore empty target specific
643 options, and if -W is also specified on the command line then
644 display undocumented options.
646 * config/arm/arm.c: Updated with changes in devo sources.
647 * config/arm/arm.h: Updated with changes in devo sources.
648 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
649 * config/arm/lib1thumb.asm: Add ELF support.
651 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
653 * collect2.c (aix64_flag): New variable.
654 (main, case 'b'): Parse it.
655 (GCC_CHECK_HDR): object magic number must match mode.
656 (scan_prog_file): Only check for shared object if valid header.
657 Print debugging if header/mode mismatch.
659 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
661 Added support for arm-elf-linux configuration, submitted by Philip
662 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
663 code developed by Catherine Moore <clm@cygnus.com>. The following
666 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
669 * configure: Regenerated.
671 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
672 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
673 definitions conditional on their not having been already defined.
675 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
676 and .type directives, and add "(PLT)" qualification to function
679 * config/arm/linux.h: Deleted. This file is now superceeded by
680 either linux-elf.h or linux-aout.h.
682 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
683 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
685 Move definitions from old linux.h file here.
687 * config/arm/elf.h: New file. Generic ARM/ELF support.
689 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
691 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
693 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
694 using the 26bit APCS.
696 * config/arm/unknown-elf.h: New file. Support for OS'es other
699 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
702 * config/arm/coff.h: Include aout.h for basic assembler macros.
703 Add support for -mstructure_size_boundary=<n> command line option.
705 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
706 command line option. Make macro definitions conditional on their
707 not having been already defined.
709 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
713 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
715 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
716 has been changed to not include a newline. Use this macro instead.
717 (output_enumeral_list, const_value_attribute, name_attribute,
718 comp_dir_attribute, prototyped_attribute, producer_attribute,
719 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
720 dwarfout_file_scope_decl, generate_new_sfname_entry,
721 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
722 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
724 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
726 * combine.c (subst): Process the inputs to a parallel asm_operands
729 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
731 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
733 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
735 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
737 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
739 * version.c: Bump for snapshot.
741 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
743 * stmt.c (expand_fixup): Set fixup->before_jump to a
744 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
746 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
748 * Makefile.in (recog.o): Depend on toplev.h.
749 (insn-emit.o): Depend on recog.h.
750 (insn-peep.o): Depend on recog.h and insn-config.h.
752 * combine.c (simplify_set): Remove unused variable `scratches'.
754 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
755 and `idx' in macro conditional controlling their use.
757 * genemit.c (main): Make the generated output file include
758 recog.h. Don't have it declare `insn_operand_constraint', since
759 we get it from recog.h.
761 * genpeep.c (main): Make the generated output file include
762 insn-config.h and recog.h.
764 * recog.c: Include toplev.h.
765 (extract_insn): Remove unused variable `p'.
767 * regclass.c (fix_register): Add missing braces around initializer
769 (allocate_reg_info): Move variable `i' into the scope where it is
770 used. Change its type to `size_t'.
772 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
774 * reload.c (push_reload): When merging reloads, make sure
775 that reload_in_reg and reload_in are from the same reload in
778 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
780 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
781 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
783 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
785 * loop.c (loop_has_tablejump): New variable.
786 (prescan_loop): Scan for it.
787 (insert_bct): Replace explicit scan with use of it.
788 * regclass.c (regclass): Restore loop variable j.
789 (record_reg_classes): Deterine op_types modifiers and initialize
790 classes[i] before matching constraints. Handle matching
793 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
795 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
798 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
800 * mips.h (EXTRA_SPECS): Add missing initializers.
802 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
804 * sparc.h (EXTRA_SPECS): Add missing initializers.
805 (sparc_defer_case_vector): Provide a prototype.
807 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
808 comparing it to the result of a pointer subtraction.
810 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
812 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
813 the argument to (unsigned char).
815 * alpha.h (EXTRA_SPECS): Add missing initializers.
816 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
819 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
821 * flow.c (life_analysis_1): Enable "rescan" code after reload.
822 (propagate_block): Delete dead code after reload.
824 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
825 back Oct 15, 1998 change.
826 * haifa-sched.c (update_flow_info): Likewise.
827 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
829 * mn10200.md (truncated shift): Accept constant inputs too.
831 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
833 * machmode.h (mode_mask_array): No longer const.
834 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
836 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
838 * frame.c: Somewhat explain `FDE'.
839 Suggested by Brendan Kehoe
841 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
843 * expr.c (pending_chain): Move up.
844 (save_expr_status): Do save pending_chain.
845 (restore_expr_status): And restore it.
846 * function.h (struct function): Add pending_chain.
848 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
850 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
851 did not match the code.
853 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
855 * regclass.c (regclass): Break out some code into new function
856 scan_one_insn, and into regclass_init.
857 (init_cost): New static variable, moved out of regclass.
858 (regclass_init): Initialize it here, not in .
859 (scan_one_insn): New static function, broken out of regclass.
860 * recog.c (apply_change_group): Break out some code into new
861 function insn_invalid_p.
862 (insn_invalid_p): New static fn, broken out of apply_change_group.
864 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
866 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
867 reg_reloaded_contents matches incremented pseudo.
869 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
871 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
873 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
874 addressing modes with side effects. These are currently
875 placeholders for the C4x target.
877 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
879 * loop.c (express_from): Make sure that when generating a PLUS of
880 a PLUS, any constant expression appears on the outermost PLUS.
882 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
884 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
885 works if "$(srcdir)" != ".".
887 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
889 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
890 existing SUBREG if we can, otherwise abort.
892 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
894 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
895 `restrict' is applied to a non-pointer variable.
897 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
899 * invoke.texi: Document -flang-isoc9x.
901 * Makefile.in (OBJS): Add splay-tree.o.
902 (c-common.o): Depend on rtl.h.
903 (splay-tree.o): List dependencies and provide build rule.
905 * rtl.h (record_alias_subset): New function.
906 * alias.c: Include splay-tree.h.
907 (alias_set_entry): New type.
908 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
909 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
910 (mems_in_disjoin_alias_sets_p): New function.
911 (alias_set_compare): Likewise.
912 (insert_subset_children): Likewise.
913 (get_alias_set_entry): Likewise.
915 * tree.h (TYPE_RESTRICT): New macro.
916 (TYPE_UNQUALIFIED): New manifest constant.
917 (TYPE_QUAL_CONST): Likewise
918 (TYPE_QUAL_VOLATILE): Likewise.
919 (TYPE_QUAL_RESTRICT): Likewise.
920 (tree_type): Add restrict_flag. Reduce count of free bits.
921 (DECL_POINTER_ALIAS_SET): New macro.
922 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
923 (tree_decl): Add pointer_alias_set.
924 (build_qualified_type): New function.
925 (build_type_variant): Define in terms of build_qualified_type.
926 * tree.c (set_type_quals): New function.
927 (make_node): Initializae DECL_POINTER_ALIAS_SET.
928 (build_type_attribute_variant): Use build_qualified_type and
930 (build_type_variant): Rename, and modify, to become...
931 (build_qualified_type): New function.
932 (build_complex_type): Use set_type_quals.
934 * c-tree.h (C_TYPE_OBJECT_P): New macro.
935 (C_TYPE_FUNCTION_P): Likewise.
936 (C_TYPE_INCOMPLETE_P): Likewise.
937 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
938 (c_apply_type_quals_to_decl): New function.
939 (c_build_qualified_type): New function.
940 (c_build_type_variant): Define in terms of c_build_qualified_type.
941 (flag_isoc9x): Declare.
942 * c-typeck.c (qualify_type): Use c_build_qualified_type.
943 (common_type): Change to use TYPE_QUALS.
944 (comptypes): Likewise.
945 (convert_for_assignment): Likewise.
946 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
947 * c-decl.c (flag_isoc9x): Define.
948 (c_decode_option): Handle -flang-isoc9x.
949 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
950 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
951 * c-lex.c (init_lex): Deal with restrict.
952 (init_lex): Don't treat restrict as a reserved word in
953 -traditional mode, or without -flang-isoc9x.
954 * c-lex.h (rid): Add RID_RESTRICT.
955 * c-parse.gperf (restrict, __restrict, __restrict__): Make
956 equivalent to RID_RESTRICT.
957 * c-parse.in (TYPE_QUAL): Update comment.
958 * c-common.c: Include rtl.h.
959 (c_find_base_decl): New function.
960 (c_build_type_variant): Rename, and modify, to become ...
961 (c_build_qualified_type): New function.
962 (c_apply_type_quals_to_decl): Likewise.
963 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
964 a particular alias set for the reference.
965 * toplev.c (documented_lang_options): Add -flang-isoc9x.
967 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
969 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
970 command line switches.
972 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
974 * reload.c (loc_mentioned_in_p): Add missing braces to bind
977 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
979 * gcc.c (option_map): Added --classpath and --CLASSPATH.
981 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
983 * regclass.c (fix_register): Add error message.
984 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
987 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
989 * c-decl.c (warn_missing_noreturn): New global variable.
990 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
991 (finish_function): Implement missing noreturn warning.
993 * c-tree.h (warn_missing_noreturn): Declare extern.
995 * invoke.texi: Document new flags.
997 * toplev.c (documented_lang_options): Add description.
999 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1001 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
1002 loop optimization stable for the C4x.
1003 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
1004 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
1005 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
1007 (c4x_address_conflict): Be more paranoid when packing a volatile
1008 memref in a parallel load/store.
1010 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1012 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
1013 repeat_block_filler): Deleted.
1014 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
1015 Condition code not set if destination register from 'c' class.
1016 (*subbqi3_carry_clobber): Fix typo.
1018 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1020 * reorg.c (steal_delay_list_from_target) Check for insns that
1021 modify the condition codes and effect the direction of the jump
1024 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1026 * function.c (purge_addressof_1): Replace call to
1027 emit_insns_before() with emit_insn_before().
1029 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
1031 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
1033 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1035 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
1037 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1039 * gcse.c (compute_hash_table): Correctly identify hard regs which are
1040 clobbered across calls.
1042 * loop.c (scan_loop): Be more selective about what invariants are
1043 moved out of a loop.
1045 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
1047 * version.c: Bump for snapshot.
1049 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1051 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
1052 static eh_context structure.
1054 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1056 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
1058 (try_combine): Don't update max_scratch.
1059 * flow.c (max_scratch, num_scratch): Delete variables.
1060 (life_analysis_1): Don't initialize max_scratch.
1061 (propagate_block): Don't update max_scratch.
1062 (mark_set_1): Don't increment num_scratch.
1063 * regs.h (max_scratch): Delete declaration.
1065 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
1067 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
1068 is nonzero. This is temporary!
1070 * sched.c (update_flow_info): Handle death notes made invalid by
1071 instruction splitting. Partially reverts Oct 15, 1998 patch.
1072 * haifa-sched.c (update_flow_info): Likewise.
1074 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
1076 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
1077 if it has a nonzero DECL_INITIAL.
1079 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1081 * Makefile.in (flow.o): Depend on recog.h.
1083 * cpplib.h (directive_table): Add missing initializiers.
1084 (finclude): Change type of variable `bsize' to size_t.
1086 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
1088 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
1090 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
1091 `int' when comparing against one.
1092 (cpp_file_line_for_message): Mark parameter `pfile' with
1094 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
1096 * flow.c: Include recog.h.
1097 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
1099 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
1100 `f' with ATTRIBUTE_UNUSED.
1101 (reposition_prologue_and_epilogue_notes): Likewise.
1103 * genopinit.c (gen_insn): Cast argument of ctype functions to
1106 * haifa-sched.c: Include recog.h.
1107 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
1108 comparing against one.
1110 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
1112 * mips-tfile.c (parse_end): Cast the argument of ctype function to
1114 (parse_ent): Likewise.
1115 (parse_input): Likewise.
1117 * optabs.c (init_libfuncs): Likewise.
1119 * protoize.c (find_rightmost_formals_list): Likewise.
1121 * recog.h (const_double_operand): Fix typo in prototype.
1123 * tlink.c (scan_linker_output): Cast the argument of ctype
1124 function to `unsigned char'.
1126 * toplev.c (check_lang_option): Cast the result of `strlen' to
1127 `int' when comparing against one.
1129 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1131 * gcse.c (dump_cuid_table): Correct typo.
1133 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
1135 * toplev.c (display_help): Prepend '-m' to target specific
1137 (check_lang_option): Ignore text after end of first word of a
1138 language specific option.
1140 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1142 * reload1.c (reg_used_by_pseudo): New static variable.
1143 (choose_reload_regs): Initialize it.
1144 Use it instead of testing spill_reg_order to determine whether a
1145 pseudo is live in a hard register across the current insn.
1146 Fix a typo in a reference to reload_reg_rtx.
1148 * flow.c (propagate_block): Replace code that computes and uses
1149 regs_sometimes_live with simpler code that just walks the set of
1150 currently live registers.
1152 * Makefile.in (insn-extract.o): Fix dependencies.
1153 * genextract.c (main): Generate includes for insn-config.h and
1155 Delete generation of declarations which are now in recog.h.
1156 * genrecog.c (main): Delete generation of definitions which are
1158 * local-alloc.c (block_alloc): Use extract_insn and the variables
1159 it sets up instead of looking up values by insn_code.
1160 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
1161 recog_dup_num): Define here instead of generating the definition in
1163 (recog_n_operands, recog_n_dups, recog_n_alternatives,
1164 recog_operand_mode, recog_constraints, recog_operand_address_p):
1166 (extract_insn): New function.
1167 * recog.h (extract_insn): Declare function.
1168 (which_alternative, recog_n_operands, recog_n_dups,
1169 recog_n_alternatives, recog_operand_mode, recog_constraints,
1170 recog_operand_address_p): Declare variables.
1171 * regclass.c (n_occurrences): New static function.
1172 * reload.c (n_occurrences): Delete function.
1173 (find_reloads): Use extract_insn.
1174 * reload.h (n_occurrences): Delete declaration.
1176 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
1178 * reload1.c (reload_as_needed): Fix test for when to call
1179 update_eliminable_offsets.
1181 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1183 Fix consistency problems with reg_equiv_{mem,address};
1184 Improve reload inheritance;
1186 * reload.c (reload_out_reg): New variable.
1187 (loc_mentioned_in_p, remove_address_replacements): New functions.
1188 (remove_replacements): Deleted.
1189 (push_reload): Set reload_out_reg[i].
1190 When merging, also set reload_{in,out}_reg[i], and remove
1191 duplicate address reloads.
1192 (combine_reloads): Copy reload_out_reg[i].
1193 (find_reloads): Do make_memloc substitution also when
1194 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1196 Include *recog_operand_loc in commutativity operand changes.
1197 Generate optional output reloads.
1198 Delete reference to n_memlocs. Don't set *recog_operand_loc before
1199 processing operands. Call make_memloc in reg_equiv_address code.
1200 Set *recog_operand_loc only after processing operands, and only
1201 if replace is true. Return a value.
1202 When changing address reload types for operands that didn't get
1203 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
1204 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
1205 Don't emit USEs for pseudo SUBREGs when not replacing.
1206 (find_reloads_address): Do make_memloc substitution also when
1207 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1209 (find_reloads_toplev): Likewise.
1210 Call make_memloc in reg_equiv_address code.
1211 (debug_reload_to_stream): Add code to output reload_out_reg.
1212 (make_memloc): Delete local variable i, ifdefed out code, and
1213 references to memlocs and n_memlocs.
1214 (memlocs, n_memlocs): Delete.
1215 (push_secondary_reload): Clear reload_out_reg.
1216 (find_reloads_address_1): Provide memrefloc argument to all calls
1217 to find_reloads_address.
1218 In AUTO_INC code, handle non-directly addressable equivalences properly.
1219 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
1220 (find_reloads): Add return type.
1221 (remove_address_replacements, deallocate_reload_reg): Declare.
1222 * reload1.c (num_not_at_initial_offset): No longer static.
1223 (delete_address_reloads, delete_address_reloads_1): Likewise.
1224 (deallocate_reload_reg): New function.
1225 (spill_reg_stored_to): New array.
1226 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
1227 (eliminate_regs_in_insn): Move assignments of previous_offset and
1228 max_offset fields, and recalculation of num_not_at_initial_offset
1229 into new static function:
1230 (update_eliminable_offsets) .
1231 (reload_as_needed): Call update_eliminable_offsetss after calling
1233 Call forget_old_reloads_1 with contents of reloaded auto_inc
1234 expressions if the actual addressing can't be changed to match the
1236 (choose_reload_regs): For inheritance, replace
1237 reload_reg_free_before_p test with reload_reg_used_at_all test, and
1238 remove stand-alone reload_reg_used_at_all test.
1239 Use reload_out_reg to determine which reload regs have output reloads.
1240 Treat reload_override_in more similar to inherited reloads.
1241 Handle (subreg (reg... for inheritance.
1242 For flag_expensive_optimizations, add an extra pass to remove
1243 unnecessary reloads from known working inheritance.
1244 Delete obsolete code for pseudos replaced with MEMs.
1245 Handle inheritance from auto_inc expressions.
1246 (emit_reload_insns): If reload_in is a MEM, set OLD to
1248 Don't reload directly from oldequiv; if it's a pseudo with a
1249 stack slot, use reload_in[j].
1250 Check that reload_in_reg[j] is a MEM before replacing reload_in
1251 from reg_reloaded_contents.
1252 Include non-spill registers in reload inheritance processing.
1253 Also try to use reload_out_reg to set spill_reg_store /
1254 reg_last_reload_reg.
1255 In code to set new_spill_reg_store, use single_set to find out if
1256 there is a single set.
1257 Add code that allows to delete optional output reloads.
1258 Add code to allow deletion of output reloads that use no spill reg.
1259 At the end, set reload_override_in to oldequiv.
1260 Also call delete_output_reload if reload_out_reg is equal to old
1262 Add code to call delete_output_reload for stores with no matching load.
1263 Set / use spill_reg_stored_to.
1264 Handle case where secondary output reload uses a temporary, but
1265 actual store isn't found.
1266 When looking for a store of a value not loaded in order to call
1267 delete_output_reload, count_occurences should return 0 for no
1268 loads; but discount inherited input reloadill_reg_stored_to.
1269 Do checks for extra uses of REG. Changed all
1271 Use delete_address_reloads.
1272 (reload): Take return value of find_reloads into account.
1273 If a no-op set needs more than one reload, delete it.
1274 (reload_reg_free_before_p): RELOAD_FOR_INPUT
1275 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
1276 for the same operand.
1277 (clear_reload_reg_in_use): Check for other reloads that keep a
1279 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
1280 RELOAD_FOR_OPADDR_ADDR.
1281 Take into account when an address address reload is only needed
1282 for the address reload we are considering.
1283 (count_occurrences): Use rtx_equal_p for MEMs.
1284 (inc_for_reload): Return instruction that stores into RELOADREG.
1285 New argument two, IN, and rtx. Changed all callers.
1286 (calculate_needs_all_insns, reload_as_needed):
1287 Don't clear after_call for a CLOBBER.
1288 Keep track of how many hard registers need to be copied from
1289 after_call, and don't clear after_call before we have seen
1290 that much copies, or we see a different instruction.
1292 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
1294 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
1295 after reload has completed.
1297 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
1299 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
1300 a macro name and the next token with a single blank if that whitespace
1301 is in a macro buffer and the next token is not '('.
1303 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
1305 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
1307 (skip_if_group): Ditto.
1308 (skip_to_end_of_comment): Ditto.
1310 (discard_comments): Ditto.
1311 (change_newlines): Ditto.
1313 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
1315 * c-lex.c (yylex): Fix unaligned access of wchar_t.
1317 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
1319 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
1320 (TARGET_OPTIONS): Add --help documentation.
1322 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1324 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
1326 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
1328 * fixinc/* Moved in from ../contrib directory in preparation
1329 for integrating it into the normal build process. In particular,
1330 fixinc/Makefile.in must be config-ed into the build directory
1331 as fixinc/Makefile. Proposed patches to ./Makefile.in and
1332 ./configure.in will be "in the mail" momentarily.
1334 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
1336 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
1337 accidently walk into the free list. Comment how that can happen.
1338 (invalidate): Fix indentation.
1340 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1341 Jeffrey A Law (law@cygnus.com)
1343 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
1344 reload. Never perform rescans of the insn chain after reload.
1345 (propagate_block): Do not delete insn or create new autoinc addressing
1348 * jump.c (jump_optimize): Unconditionally use the code that was
1349 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
1350 * reload1.c (reload): When reloading is finished, delete all
1351 REG_DEAD and REG_UNUSED notes.
1352 (emit_reload_insns): Delete all code that was conditional on
1353 PRESERVE_DEATH_INFO_REGNO_P.
1354 (no_longer_dead_regs): Delete variable.
1355 (reload_cse_delete_death_notes): Delete function.
1356 (reload_cse_no_longer_dead): Delete function.
1357 (reload_cse_regs_1): Delete all code to handle deletion of death
1359 (reload_cse_noop_set_p): Likewise.
1360 (reload_cse_simplify_set): Likewise.
1361 (reload_cse_simplify_operands): Likewise.
1362 (reload_cse_move2add): Likewise.
1363 * reorg.c (used_spill_regs): Delete declaration.
1364 (max_label_num_after_reload): Delete declaration.
1365 (find_dead_or_set_registers): Don't assume that spill regs are
1366 dead at a CODE_LABEL.
1367 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
1369 * sched.c (sched_analyze_insn): Likewise.
1370 (update_flow_info): Likewise.
1371 * haifa-sched.c (sched_analyze_insn): Likewise.
1372 (update_flow_info): Likewise.
1373 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
1374 * toplev.c (max_label_num_after_reload): Delete variable.
1375 (rest_of_compilation): Don't set max_label_num_after_reload.
1376 Call life_analysis after reload_cse_regs if optimizing.
1377 * config/gmicro/gmicro.h: Delete comment referring to
1378 PRESERVE_DEATH_INFO_REGNO_P.
1379 * config/i386/i386.h: Likewise.
1380 * config/m88k/m88k.h: Likewise.
1381 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
1382 * config/sh/sh.h: Likewise.
1384 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
1386 * loop.c (strength_reduce): Restore marking bct_p as
1388 * rs6000.c (optimization_options): Change #ifdef HAIFA to
1389 HAVE_decrement_and_branch_on_count.
1390 (small_data_operand): Remove TARGET_ELF condition for marking
1391 parameters ATTRIBUTE_UNUSED.
1393 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
1395 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
1396 (SELECT_SECTION): Resync with svr4.h.
1398 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
1400 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
1403 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
1405 * c-pragma.c (handle_pragma_token): Test for null tree before
1406 dereferencing TREE_CODE.
1408 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1410 * config/c4x/c4x.c: Convert to use GEN_INT.
1411 (c4x_parallel_process): Rework to handle new repeat loop structure.
1413 * config/c4x/c4x.md: Convert to use GEN_INT.
1414 (rptb_end): Convert to use GE test. Replace uses with clobbers.
1415 (decrement_and_branch_on_count): Likewise.
1417 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
1418 loop.c has the desired functionality.
1419 (rc_reg_operand): New prototype.
1421 * config/c4x/t-c4x: Can now build all front ends.
1423 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
1425 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
1427 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
1429 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
1430 * config/t-rtems: Do not install assert.h -- use newlib's.
1432 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1434 * combine.c (combine_instructions): When finished, call init_recog.
1435 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
1437 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
1439 * toplev.c: If flag_syntax_only, don't open or write assembler file.
1441 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1443 * cppalloc.c (memory_full): Mark function prototype with
1446 * demangle.h (collect_exit): Likewise.
1448 * fix-header.c (v_fatal, fatal): Likewise.
1450 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
1453 * gcov.c (print_usage): Likewise.
1455 * genattr.c (fatal, fancy_abort): Likewise.
1457 * genattrtab.c (fatal, fancy_abort): Likewise.
1459 * gencodes.c (fatal, fancy_abort): Likewise.
1461 * genconfig.c (fatal, fancy_abort): Likewise.
1463 * genemit.c (fatal, fancy_abort): Likewise.
1465 * genextract.c (fatal, fancy_abort): Likewise.
1467 * genflags.c (fatal, fancy_abort): Likewise.
1469 * genopinit.c (fatal, fancy_abort): Likewise.
1471 * genoutput.c (fatal, fancy_abort): Likewise.
1473 * genpeep.c (fatal, fancy_abort): Likewise.
1475 * genrecog.c (fatal, fancy_abort): Likewise.
1477 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
1478 __sjpopnthrow, __throw): Likewise.
1480 * objc/objc-act.c (objc_fatal): Likewise.
1482 * protoize.c (usage, aux_info_corrupted,
1483 declare_source_confusing): Likewise.
1485 * rtl.c (dump_and_abort): Likewise.
1487 * rtl.h (sets_cc0_p): Likewise.
1489 * toplev.c (float_signal, pipe_closed): Likewise.
1491 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1493 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
1494 when generating the decision tree for the general case.
1496 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
1497 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
1499 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1501 * Makefile.in (sched.o): Depend on recog.h.
1503 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
1504 (unsigned) when comparing against one.
1505 (find_base_value): Likewise.
1506 (record_base_value): Cast variable `regno' to (unsigned) when
1507 comparing against one. Cast the result of REGNO() macro to
1508 (unsigned) when comparing against one.
1509 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
1511 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
1512 variable where an unsigned index is needed.
1514 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
1515 before comparing against one.
1517 * collect2.c: Add prototypes for functions `error', `fatal' and
1518 `fatal_perror'. Make these functions take variable arguments
1519 instead of faking it with a fixed number of args.
1520 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
1523 * combine.c (can_combine_p): Mark parameter `pred' with
1525 (find_split_point): Cast variable `src' to (unsigned
1526 HOST_WIDE_INT) when comparing against one.
1527 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
1528 (simplify_logical): Likewise.
1529 (force_to_mode): Cast result of INTVAL() macro to (unsigned
1530 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
1531 HOST_WIDE_INT) in shift.
1532 (simplify_and_const_int): Cast result of INTVAL() macro to
1533 `unsigned HOST_WIDE_INT' when comparing against one.
1534 (merge_outer_ops): Cast variable const0 to `unsigned
1535 HOST_WIDE_INT' when comparing against the result of
1536 GET_MODE_MASK() macro.
1537 (simplify_comparison): Likewise for variable `c0'. Cast variable
1538 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
1539 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
1540 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
1541 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
1542 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
1543 comparing against one.
1544 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
1546 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
1547 macro to `unsigned HOST_WIDE_INT' when comparing against one.
1548 (output_block_move): Cast `sizeof' expression to (int) when
1549 comparing against one.
1550 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
1552 (save_restore_insns): Cast `base_offset' to `long' to match format
1553 specifier in fprintf.
1555 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
1556 to `enum machine_mode'.
1558 * flow.c (life_analysis_1): Remove unused variable `insn'.
1560 * gcc.c (translate_options): Move variables `j' and `k' into the
1561 scope in which they are used. Change their types to `size_t'.
1562 (set_spec): Cast the argument of ctype macro to `unsigned char'.
1563 (read_specs): Likewise.
1564 (process_command): Cast `sizeof' to (int) when comparing against one.
1565 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
1566 (handle_braces): Cast both sides of `==' expression to `long' to
1567 ensure sign matching.
1568 (main): Cast variable `i' to `int' when comparing against one.
1570 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
1571 int to size_t. Cast variable `i' to size_t when comparing against
1574 * genattrtab.c (convert_set_attr_alternative): Remove unused
1575 parameter `insn_code'. All callers changed.
1576 (convert_set_attr): Likewise.
1578 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
1579 size_t when comparing against one. Likewise for variable `len'.
1581 * global.c (global_alloc): Cast variable `max_regno' to size_t
1582 when comparing against one. Likewise for variable `max_allocno'.
1584 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
1586 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
1587 `set' with ATTRIBUTE_UNUSED.
1588 (find_free_reg): Cast `sizeof' expression to (int) when comparing
1591 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
1592 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
1593 (get_condition): Cast variable `const_val' to `unsigned
1594 HOST_WIDE_INT' when comparing against one. Cast unsigned
1595 expression to HOST_WIDE_INT when comparing against one.
1596 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
1597 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
1598 `unsigned' when comparing against one.
1600 * protoize.c (is_id_char): Change type of parameter `ch' to
1602 (munge_compile_params): Cast argument of ctype macro to (const
1604 (process_aux_info_file): Cast variable `aux_info_size' to int when
1605 comparing against one.
1606 (forward_to_next_token_char): Cast argument of ctype macro to
1607 `const unsigned char'.
1608 (edit_formals_lists): Likewise.
1609 (find_rightmost_formals_list): Likewise.
1610 (add_local_decl): Likewise.
1611 (add_global_decls): Likewise.
1612 (edit_fn_definition): Likewise.
1613 (do_cleaning): Likewise.
1614 (scan_for_missed_items): Likewise.
1615 (edit_file): Cast variable `orig_size' to (int) when comparing
1617 (main): Cast argument of ctype macro to `const unsigned char'.
1619 * recog.c (const_int_operand): Mark parameter `mode' with
1622 * regclass.c (record_reg_classes): Change type of variable `c' to
1623 `unsigned char'. Cast `char' array index to `unsigned char'.
1625 * reload.c (push_secondary_reload): Cast argument to
1626 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
1628 * reload1.c (calculate_needs): Cast `char' array index to
1630 (set_label_offsets): Change type of variable `i' to unsigned int.
1631 Cast result of XVECLEN() macro to unsigned when comparing against
1633 (mark_not_eliminable): Change type of variable `i' to unsigned.
1634 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
1635 when comparing against one.
1636 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
1637 comparing against one.
1638 (choose_reload_regs): Hide unused label `fail'.
1639 (reload_cse_simplify_operands): Cast `char' array index to
1641 (reload_combine_note_store): Mark parameter `set' with
1642 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
1644 (reload_cse_move2add): Remove unused variable `src2'.
1646 * sched.c: Include recog.h.
1647 (sched_note_set): Remove unused parameter `b'. All callers
1649 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
1650 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
1651 when comparing against one.
1653 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
1654 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
1655 comparing against one.
1657 * unroll.c (precondition_loop_p): Remove unused parameter
1658 `loop_end'. All callers changed.
1660 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1662 * reload1.c (maybe_fix_stack_asms): New static function.
1665 * reload.h (compute_use_by_pseudos): Declare.
1667 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
1668 (something_needs_reloads): Delete variable.
1669 (finish_spills): New function.
1670 (compute_use_by_pseudos): New function.
1672 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
1673 Use the reload_insn_chain instead of walking the rtl directly.
1675 (reload): Allocate and free spilled_pseudos.
1676 Ensure that all calls of spill_hard_reg are followed by a call to
1678 Use the insns_need_reload list instead of something_needs_reloads
1679 to find out if reload_as_needed must be called.
1680 Clear unused_insn_chains at the end.
1682 (calculate_needs_all_insns): Lose FIRST parameter. All callers
1684 Delete code to keep track of current basic block.
1685 Walk reload_insn_chain instead of the rtl structure. Build the
1686 insns_need_reload chain.
1687 Remember which insns need reloading/elimination by setting the
1688 appropriate fields in struct insn_chain, not by putting modes on the
1691 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
1692 arg INSN. All callers changed.
1693 Delete declaration of struct needs.
1694 Don't set something_needs_reloads.
1695 Record insn needs in the CHAIN argument.
1697 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
1699 (reload_as_needed): Lose FIRST arg. All callers changed.
1700 Walk the reload_insn_chain instead of the rtx structure.
1701 Delete code to keep track of current basic block.
1702 Rename one of the NEXT variables to OLD_NEXT.
1704 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
1706 (choose_reload_regs): Likewise.
1708 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
1711 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
1712 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
1713 (hard_regs_live, hard_regs_need_restore): Delete variables.
1714 (n_regs_saved): Now static.
1715 (referenced_regs, this_insn_sets): New variables.
1717 (setup_save_areas): Restructure the code a bit.
1719 (restore_referenced_regs): Delete function.
1720 (mark_referenced_regs): New function, similar to the old
1721 restore_referenced_regs, but mark registers in referenced_regs.
1723 (clear_reg_live): Delete function.
1724 (mark_set_regs): Renamed from set_reg_live. All callers changed.
1725 Only mark registers in this_insn_sets.
1727 (save_call_clobbered_regs): Rework this function to walk the
1728 reload_insn_chain instead of using the list of instructions directly.
1729 Delete code to keep track of register lives, compute live regs on the
1730 fly from information in the chain.
1731 Instead of calling restore_referenced_regs, use mark_referenced_regs,
1732 then walk the set it computes and call insert_restore as appropriate.
1734 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
1736 Restructure the code a bit. Test hard_regs_saved instead of
1737 hard_regs_need_restore.
1738 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
1739 args. All callers changed.
1740 Restructure the code a bit. Use TO_SAVE to determine which regs to
1741 save instead of more complicated test.
1742 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
1744 Create a new insn_chain structure for the new insn and place it
1747 * rtl.texi: Update documentation to reflect that reload no longer
1748 puts modes on the insns.
1750 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1752 * function.c (purge_addressof_1): Force the first argument of a
1753 CALL insn to memory.
1755 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
1757 * rtl.h: Delete duplicate prototypes. Add some missing
1759 * rtlanal.c: (for_each_rtx): Formatting tweak.
1761 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1763 * real.c (emdnorm and etoasc): Disable round to even for c4x target
1764 to be compatible with TI compiler.
1766 * Makefile.in (USER_H): Add va-c4x.h to definition.
1768 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
1770 * function.c (purge_addressof_1): Fix typo in inequality: do
1771 bitfield optimization for equal mode sizes.
1772 * expmed.c (store_bit_field): Don't take subregs of subregs in
1773 the movstrict case. Tidy a potential problem in the multi-word case.
1774 (extract_bit_field): Likewise.
1776 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1778 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
1780 Compute max_uid_for_flow by calling get_max_uid after the scan.
1781 (find_basic_blocks_1): Don't emit NOPs here.
1783 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
1785 * alias.c (base_alias_check): Accept new args for the modes of the
1786 two references. Use them to determine if an AND can overlap. Update
1788 (memrefs_conflict_p): Assume sizes are aligned, and uses them
1789 to determine if an AND can overlap.
1791 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
1793 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
1794 check. Add comment to document problems with TARGET_SUN_FPA version
1796 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
1798 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1800 * Makefile.in (gencheck.o): Depend on gansidecl.h.
1802 * c-common.c (print_char_table): Add missing initializers.
1803 (scan_char_table): Likewise.
1804 (time_char_table): Likewise.
1806 * c-decl.c (c_decode_option): Mark parameter `argc' with
1808 (declare_parm_level): Mark parameter `definition_flag' with
1811 * c-lex.c (readescape): Use `(unsigned)1' in shift.
1812 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
1815 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
1817 (emit_call_1): Mark parameters `fndecl' and `funtype' with
1819 (expand_call): Cast result of MIN() to (unsigned int) when
1820 comparing against an unsigned value.
1822 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
1824 (make_definition): Remove unused parameter `op'. All callers
1826 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
1827 comparing against the result of pointer arithmetic.
1829 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
1830 when comparing against one.
1832 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
1833 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
1835 (output_die): Move variable `i' into the scope in which it is
1836 used. Change its type to `unsigned'.
1837 (output_die): Cast the result of `strlen' to (int) when passing it
1838 to ASM_OUTPUT_ASCII().
1839 (output_pubnames): Likewise.
1840 (output_line_info): Likewise.
1842 * emit-rtl.c (global_rtl): Add missing initializers.
1844 * explow.c (promote_mode): Mark parameter `for_call' with
1847 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
1848 `unsigned HOST_WIDE_INT' when comparing against one.
1849 (synth_mult): Change type of variable `cost' to int.
1850 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
1852 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
1853 when comparing against one.
1854 (get_inner_reference): Change variable `alignment' to unsigned.
1855 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
1856 int) when comparing against one.
1857 (expand_builtin_setjmp): Change type of variable `i' to size_t.
1859 * fold-const.c (div_and_round_double): Cast BASE to
1860 (HOST_WIDE_INT) when comparing against one.
1862 * gencheck.c: Include gansidecl.h.
1863 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
1865 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
1866 `tcode' with ATTRIBUTE_UNUSED.
1868 * real.c (edivm): Cast constant value to (unsigned long) in
1869 expression compared against an unsigned value.
1871 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
1872 comparing against one.
1873 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
1874 when comparing against one.
1876 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
1877 (unsigned int) when comparing against one. Likewise for
1879 (smallest_mode_for_size): Likewise.
1880 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
1881 (restore_storage_status): Likewise.
1883 * toplev.c (debug_args): Add missing initializer.
1884 (f_options): Spelling correction. Add missing initializers.
1885 (documented_lang_options): Likewise.
1886 (debug_end_source_file): Mark parameter `lineno' with
1889 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
1890 `decl' and `type' with ATTRIBUTE_UNUSED.
1892 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
1893 when comparing against one.
1894 (assemble_variable): Mark parameter `top_level' with
1896 (assemble_external_libcall): Mark parameter `fun' with
1898 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
1901 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
1903 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
1904 Replace use of r5 with use of r19.
1906 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
1908 * config/v850/v850.c (compute_register_save_size): Allow for the
1909 fact that helper functions save all registers, not just those used
1912 Replace constant 31 with macro LINK_POINTER_REGNUM.
1914 * config/v850/v850.md: Use 'indirect_operand' rather than
1915 'memory_operand' for bit test/set/clear patterns.
1917 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
1919 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
1920 * varasm.c (assemble_start_function et al): Don't call
1921 ASM_GLOBALIZE_LABEL for weak symbols.
1923 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
1925 * cse.c (equiv_constant): Check for NULL return from
1926 gen_lowpart_if_possible().
1928 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
1930 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
1932 * collect2.c (main): Pass -EL/-EB through to the compiler.
1934 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1936 * expr.c (push_block): Handle targets where the stack grows
1937 to higher addresses, but args grow to lower addresses and
1938 ACCUMULATE_OUTGOING_ARGS is not defined.
1940 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
1942 * config/v850/v850.c (print_operand): Extend meaning
1943 of 'c' operands to support .vtinherit.
1945 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1947 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
1948 Added ATTRIBUTE_UNUSED to unused function arguments.
1949 (rc_reg_operand): New predicate.
1950 (c4x_rptb_insert): New function.
1951 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
1952 (c4x_optimization_options): New function.
1954 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
1955 (decrement_and_branch_on_count): New pattern.
1956 (rptb_top): Modified pattern to work with BCT optimization.
1958 * config/c4x/c4x.h (RC_REG): New register class.
1959 (rc_reg_operand): Define prototype.
1960 (IS_RC_REG): New macro.
1961 (IS_RC_OR_PSEUDO_REG): New macro.
1962 (IS_RC_OR_PSEUDO_REGNO): New macro.
1963 (OPTIMIZATION_OPTIONS): Define.
1965 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
1967 * collect2.c (extract_init_priority): No priority is 65535.
1969 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1971 * Makefile.in (build_tooldir): new variable, same as old
1972 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
1973 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
1974 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
1976 * configure.in (gxx_include_dir): set default based on unlibsubdir
1977 * Makefile.in (tooldir): ditto
1978 (cccp.o, cpplib.o): use unlibsubdir implicitly through
1979 gxx_include_dir, includedir and tooldir
1980 (protoize.o, unprotoize.o): ditto
1982 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
1984 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
1986 * config/arm/thumb.c (thumb_override_options): Add warning about
1987 PIC code not being supported just yet.
1989 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
1991 * flow.c: Update comment.
1992 (notice_stack_pointer_modification): New static function.
1993 (record_volatile_insns): Use it.
1994 (mark_regs_live_at_end): Mark the stack pointer as alive
1995 at the end of the function if current_function_sp_is_unchanging
1997 (life_analysis_1): Set current_function_sp_is_unchanging.
1998 * function.c: Define it.
1999 (init_function_start): Initialize it.
2000 * output.h: Declare it.
2001 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
2002 the stack pointer as alive at the end of the function if
2003 current_function_sp_is_unchanging is set.
2004 * i386.c (ix86_epilogue): Optimize the restoring
2005 of the stack pointer.
2007 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
2009 * version.c: Bump for snapshot.
2011 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
2013 * c-pragma.c (handle_pragma_token): If passed a token instead
2014 of a tree, use that as the pack value.
2016 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
2018 * flow.c (find_basic_blocks_1): Fix prototype.
2020 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
2022 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
2023 (struct tree_decl): New fields no_check_memory_usage.
2024 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
2025 (init_attributes): Register it as a new attribute.
2026 (decl_attributes): Set flags on functions given that attribute.
2027 * c-decl.c (duplicate_decls): Merge new attribute.
2028 * expr.h (current_function_check_memory_usage): Declare new var.
2029 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
2030 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
2031 current_function_check_memory_usage.
2032 * function.h: Add field to struct function.
2033 * function.c (current_function_check_memory_usage): Define it.
2034 (push_function_context_to, pop_function_context_from): Save and
2036 (expand_function_start): Set it, based on global flag and function
2039 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
2040 check non-automatic variables, to permit detection of writes to
2041 read-only locations in embedded systems without memory management.
2042 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
2043 when emitting chkr_set_right_libfunc call, even if the argument is
2044 BLKmode or variable-sized; don't abort.
2046 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
2047 symbols in Pmode, not VOIDmode.
2049 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2051 * cppexp.c: When forcing unsigned comparisons, cast both sides
2054 * cpphash.h: Move static declaration of hashtab[]...
2055 * cpphash.c: ...here.
2057 * cpplib.c: Cast difference of two pointers to size_t before
2058 comparing it to size_t. Cast signed to unsigned
2059 before comparing to size_t. (FIXME: struct argdata should use
2060 unsigned buffer sizes.)
2061 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
2062 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
2063 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
2064 size_t before comparison.
2066 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
2068 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
2069 (find_basic_blocks_1): Similarly.
2070 * output.h (find_basic_blocks): Fix prototype.
2071 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
2072 find_basic_blocks anymore.
2074 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
2076 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
2077 (sbitmap_free, sbitmap_vector_free): New macros.
2078 * output.h (rtl_dump_file): Declare.
2080 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
2082 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
2084 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2086 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
2088 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
2089 (divide): Remove unused variable `tmp'.
2090 (si_to_float): Cast numeric constant to (SItype) before comparing
2093 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
2095 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
2096 * gcc.c (add_preprocessor_option): Correct typo when allocating
2097 memory, sizeof() argument had one too many `*'.
2098 (add_assembler_option): Likewise.
2099 (add_linker_option): Likewise.
2100 * gcov.c (output_data): Likewise.
2101 * local-alloc.c (memref_used_between_p): Likewise.
2102 (update_equiv_regs): Likewise.
2103 * loop.c (strength_reduce): Likewise.
2104 * reg-stack.c (record_asm_reg_life): Likewise.
2105 (subst_asm_stack_reg): Likewise.
2106 * reorg.c (dbr_schedule): Likewise.
2108 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2110 * flow.c (life_analysis_1): Break out some functions.
2111 (find_basic_blocks_1): Likewise. Also move some variables out and
2113 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
2114 new static var nonlocal_label_list with it.
2115 (active_eh_region, nested_eh_region, label_value_list,
2116 nonlocal_label_list): New static variables.
2117 (make_edges, delete_unreachable_blocks, delete_block): New static
2118 functions, broken out of find_basic_blocks_1.
2119 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
2120 noop_move_p): New static functions, broken out of life_analysis_1.
2122 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
2124 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
2125 Take extra care for op0 now possibly being a subreg.
2126 (extract_bit_field): Likewise.
2127 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
2128 the reg to memory if there is no equal sized integral mode.
2129 * stor-layout.c (int_mode_for_mode): New function.
2130 * machmode.h: Prototype it.
2132 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
2134 * global.c (build_insn_chain): Verify no real insns exist past the
2135 end of the last basic block, then exit the loop.
2137 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2139 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
2141 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
2143 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
2145 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
2147 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
2149 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
2151 * flow.c (find_basic_blocks): Correctly determine when a call
2152 is within an exception region.
2154 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
2156 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
2158 * cpplib.h: Protect from multiple inclusions.
2159 * cpplib.c: Fix minor formatting problems.
2161 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
2163 * jump.c (jump_optimize): Revert accidental patch.
2165 * Makefile.in (cpplib.o): Use unlibsubdir.
2167 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
2169 * loop.c (get_condition): Allow combine when either compare is
2172 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
2174 * version.c: Bump for snapshot.
2176 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
2178 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
2179 (init_lex): Initialize ridpointers[RID_BYREF].
2180 * c-lex.h (enum rid): Add RID_BYREF.
2181 * c-parse.gperf: Add RID_BYREF as a type qualifier.
2182 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
2183 (encode_type_qualifiers): Similarly
2184 * c-gperf.h: Rebuilt.
2186 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
2188 * c-common.c (type_for_mode): Only return TItype nodes when
2189 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2190 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
2191 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2192 (init_decl_processing): Only create TItype nodes when
2193 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2194 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
2195 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2197 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2199 * stmt.c (n_occurrences): New static function.
2200 (expand_asm_operands): Verify that all constrains match in the
2201 number of alternatives.
2202 Verify that '+' or '=' are at the beginning of an output constraint.
2203 Don't allow '&' for input operands.
2204 Verify that '%' isn't written for the last operand.
2205 * reload.c (find_reloads): Abort if an asm is found with invalid
2206 constraints; all possible problems ought to be checked for earlier.
2208 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2210 * flags.h (flag_branch_on_count_reg): Always declare
2211 * toplev.c (flag_branch_on_count_reg): Likewise.
2212 * toplev.c: Fix typos.
2214 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
2217 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
2219 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
2221 (find_basic_blocks_1): Add a nop to the end of a basic block when
2222 a trailing call insn does not have abnormal control flow.
2223 * gcse.c (pre_transpout): New variable.
2224 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
2225 (compute_pre_transpout): Calculate it.
2226 (compute_pre_ppinout): Use it to eliminate impossible placements
2227 due to abnormal control flow through calls.
2228 (compute_pre_data): Call compute_pre_transpout.
2230 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2232 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
2234 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
2236 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
2237 and matching define_insns): Tack on a `use' of the table label, so
2238 flow analysis will recognize a tablejump.
2240 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
2242 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
2243 always end basic blocks for abnormal edge reasons.
2245 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
2247 * config/i386/i386.h: Remove definition of
2248 HANDLE_PRAGMA_PACK_PUSH_POP.
2250 * config/i386/go32.h: Add definition of
2251 HANDLE_PRAGMA_PACK_PUSH_POP.
2253 * config/i386/win32.h: Add definition of
2254 HANDLE_PRAGMA_PACK_PUSH_POP.
2256 * config/i386/cygwin32.h: Add definition of
2257 HANDLE_PRAGMA_PACK_PUSH_POP.
2259 * c-pragma.c (insert_pack_attributes): Do not insert
2260 attributes unless #pragma pack(push,<n>) is in effect.
2262 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
2264 * expr.c (emit_group_store): Handle a PARALLEL destination.
2266 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
2268 * gcse.c (pre_insert_insn): When a call ends a bb, insert
2269 the new insns before the argument regs are loaded.
2271 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2273 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
2274 (c-parse.gperf): Update comments describing invocation flags.
2275 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
2277 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
2279 * reload1.c (reload): Call free before clobbering the memory
2280 locations or constants pointers.
2282 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2284 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
2285 for efficiency by checking whether we need to modify the current
2286 stack permission at all.
2287 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
2288 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
2289 __enable_execute_stack libcall here too if
2290 TRANSFER_FROM_TRAMPOLINE is defined.
2291 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
2294 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
2296 * Makefile.in (DRIVER_DEFINES): Remove last change.
2298 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2300 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
2301 insns we're going to copy.
2302 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
2304 * loop.c (count_one_set): Add prototype.
2306 * caller-save.c (restore_referenced_regs): Lose mode argument.
2307 (insert_save): Lose mode argument.
2308 (insert_restore): Lose mode argument.
2309 (insert_one_insn): Lose mode argument.
2310 (save_call_clobbered_regs): Lose mode argument.
2311 (setup_save_areas): Take no argument and return void. All callers
2313 Don't verify validity of memory addresses.
2314 * reload.h (setup_save_ares): Adjust prototype.
2315 (save_call_clobbered_regs): Likewise.
2316 * reload1.c (delete_caller_save_insns): New function.
2317 (caller_save_spill_class): Delete variable.
2318 (caller_save_group_size): Delete variable.
2319 (reload): Call setup_save_areas and save_call_clobbered_regs
2320 in the main loop, before calling calculate_needs_all_insns.
2321 Don't call save_call_clobbered_regs after the loop.
2322 Call delete_caller_save_insns at the end of an iteration if
2324 Delete code to manage caller_save_spill_class.
2325 Emit the final note before setting reload_first_uid.
2326 Simplify test that determines whether reload_as_needed gets run.
2327 (calculate_needs): Delete code to manage caller_save_spill_class.
2329 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
2331 * collect2.c (main): Initialize ld_file_name.
2333 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
2335 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
2336 check for flag_function_sections.
2338 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2340 * cse.c (insert_regs): Fix bug in Sep 24 change.
2342 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2344 * flags.h (flag_dump_unnumbered): Declare.
2345 * toplev.c (flag_dump_unnumbered): Don't declare.
2346 * print-rtl.c (flags.h): Include.
2347 (print_rtl_single): Add return value.
2348 * rtl.h (print_rtl_single): Update declaration.
2349 * flow.c (flag_dump_unnumbered): Don't declare.
2350 (print_rtl_with_bb): Use return value of print_rtl_single.
2352 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2354 * loop.c (count_one_set): New static function, broken out of
2356 (count_loop_regs_set): Call it.
2357 * global.c (mark_reg_store): Handle clobbers here by not calling
2359 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
2360 is in fact a clobber.
2361 * integrate.c (process_reg_param): New function, broken out of
2362 expand_inline_function.
2363 (expand_inline_function): Call it.
2366 * i386.md (addsidi3_1): Delete unused variable temp.
2367 (addsidi3_2): Likewise.
2368 (clstrstrsi): Delete unused variable addr1.
2370 * rtl.h: Don't declare any functions also declared in recog.h.
2372 * Makefile.in (stupid.o): Update dependencies.
2373 (global.o): Likewise.
2375 * global.c: Include reload.h
2376 (reg_becomes_live): New function.
2377 (reg_dies): New function.
2378 (build_insn_chain): New function.
2379 (global_alloc): Call build_insn_chain before calling reload.
2381 * reload.h (struct needs): New structure definition.
2382 (struct insn_chain): Likewise.
2383 (reload_insn_chain): Declare variable.
2384 (new_insn_chain): Declare function.
2387 * reload1.c (reload_startobj): New variable.
2388 (reload_insn_chain): New variable.
2389 (unused_insn_chains): New variable.
2390 (new_insn_chain): New function.
2391 (init_reload): Initialize reload_startobj, not reload_firstobj.
2392 (reload): Initialize reload_firstobj.
2393 Before returning, free everything on the reload_obstack.
2395 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
2396 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
2397 current_chain): New variables.
2398 (reg_where_born): Delete variable.
2399 (REG_WHERE_BORN): New macro.
2400 (find_clobbered_regs): New function.
2401 (stupid_life_analysis): Don't allocate/free reg_where_born.
2402 Allocate and free reg_where_born_exact, reg_where_born_clobber,
2403 reg_where_dead_chain.
2404 Use REG_WHERE_BORN instead of reg_where_born.
2405 While processing the insns, build the reload_insn_chain with
2406 information about register lifetimes.
2407 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
2408 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
2410 Compute and information about birth and death of pseudo registers in
2411 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
2412 Delete code to set elements of reg_where_born.
2414 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2416 * tree.def (GOTO_EXPR): Modified documentation.
2417 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
2420 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
2422 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
2423 loop_final_value, loop_comparison_code): No longer static.
2424 (unroll_loop): Delete loop_start_value update.
2425 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
2426 loop_final_value, loop_comparison_code): Extern.
2427 (loop_start_value): Delete extern.
2428 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
2429 loop_comparison_value, loop_comparison_code): Delete.
2430 (loop_optimize): Remove initialization for deleted variables.
2431 (strength_reduce): Delete analyze_loop_iterations call. Only call
2432 insert_bct if flag_branch_count_on_reg set.
2433 (analyze_loop_iterations): Delete.
2434 (insert_bct): Remove iteration count calculation. Move checks for
2435 viable BCT optimization to here. Obtain iteration count from
2436 loop_iterations and correct for unrolling. Check for enough
2437 iteration to be beneficial. Comment out runtime iteration count
2439 (insert_bct): Print iteration count in dump file. Remove
2440 loop_var_mode and use word_mode directly.
2442 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
2443 * rs6000.c (rs6000_override_options): Use it.
2444 (optimization_options): Enable use of flag_branch_on_count_reg.
2445 * rs6000.md (define_function_unit): Describe 604e.
2447 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2449 * loop.c (move_movables): Corrected threshold calculation for
2450 moved_once registers.
2452 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2454 * loop.c (combine_givs_p): Fix test for identical givs.
2456 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
2458 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
2459 call abort if the function is already defined.
2461 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
2463 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
2464 truncation is not a no-op.
2466 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
2468 * version.c: Bump for snapshot.
2470 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
2472 * version.c: Bump for snapshot.
2474 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
2476 * expmed.c (expand_divmod): Don't widen for computing remainder
2477 if we seem to have a divmod pattern for needed mode.
2479 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2481 * cpplib.c (macroexpand): Correct off-by-one error in handling
2484 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
2486 * combine.c (expand_field_assignment): Don't do bitwise operations
2487 on MODE_FLOAT; pun to MODE_INT if possible.
2489 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
2490 scott snyder <snyder@d0sgif.fnal.gov>
2492 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
2493 linker. Recognize mangled names in quotes.
2495 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2497 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
2498 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
2499 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
2500 (lshrsi3_extend, lshrsi3_extend2): Ditto.
2502 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2504 * function.c (purge_addressof_1): If trying to take a sub-word
2505 integral piece of a floating point mode, put it on the stack.
2507 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
2509 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
2511 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
2513 * PROJECTS: Remove template friends.
2515 * collect2.c (sort_ids): Remove unused variable.
2517 * tm.texi (MATH_LIBRARY): Document.
2518 (NEED_MATH_LIBRARY): Remove.
2520 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
2521 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
2523 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
2525 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
2526 last_end to 0x7fffffff.
2528 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2530 * function.c (purge_addressof_1): Do not perform endianness
2531 corrections on bitpos, who we call will do it for us.
2533 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
2535 * h8300.c (WORD_REG_USED): Fix typo.
2536 (initial_offset): Use WORD_REG_USED.
2538 * h8300.c (handle_pragma): Fix typo.
2540 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2542 * caller-save.c (insert_save_restore): Break this function up
2543 into new functions insert_restore, insert_save and insert_one_insn.
2544 All callers changed.
2545 (insert_restore): New function, mostly broken out of
2546 insert_save_restore.
2547 (insert_save): Likewise.
2548 (insert_one_insn): Likewise.
2549 (restore_referenced_regs): New argument BLOCK. All callers changed.
2550 (save_call_clobbered_regs): Don't keep track of basic block boundaries
2551 in this function, do it in insert_one_insn instead.
2553 * reload1.c (reload): Break out some more pieces into separate
2555 (dump_needs): New function, broken out of reload.
2556 (set_initial_elim_offsets): Likewise.
2557 (init_elim_table): Likewise.
2558 (update_eliminables): Likewise.
2560 * global.c (global_alloc): Delete code to manage the scratch_list.
2561 * local-alloc.c (qty_scratch_rtx): Delete.
2562 (scratch_block): Delete.
2563 (scratch_list): Delete.
2564 (scratch_list_length): Delete.
2565 (scratch_index): Delete.
2566 (alloc_qty_for_scratch): Delete.
2567 (local-alloc): Update initialization of max_qty.
2568 Delete code to manage the scratch list.
2569 Delete code to allocate/initialize qty_scratch_rtx.
2570 (block_alloc): Don't allocate quantities for scratches.
2571 Delete code to manage the scratch list.
2572 * regs.h (scratch_list): Delete declaration.
2573 (scratch_block): Delete declaration.
2574 (scratch_list_length): Delete declaration.
2575 * reload1.c (reload): Delete code to manage the scratch list.
2576 (spill_hard_reg): Likewise.
2577 (mark_scratch_live): Delete.
2579 * recog.c (alter_subreg): Delete declaration.
2581 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2583 * Makefile.in (cccp.o): Fix typo in last patch.
2585 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2587 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
2588 * config/sh/lib1funcs.asm (___set_fpscr): Add.
2590 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
2592 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
2593 NULL_RTX as an argument.
2595 * Makefile.in (unlibsubdir): Define.
2596 (DRIVER_DEFINES): Use unlibsubdir.
2597 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
2598 (stmp-fixinc): Similarly.
2600 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2602 * regmove.c (regmove_optimize): Add variable old_max_uid.
2603 At the end of the function, update basic_block_end.
2605 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2607 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
2608 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
2611 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
2613 * config/arm/arm.c: Improve interworking support.
2615 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2617 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
2618 copied from reload_out[r] .
2620 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
2622 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
2623 with more than three size ranges.
2625 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
2627 * rtl.c (mode_name): Add a null string at the end of the array.
2628 (mode_wider_mode): Change type to unsigned char.
2629 (mode_mask_array): New variable.
2630 (init_rtl): Update for mode_wider_mode type change.
2632 * rtl.h (mode_wider_mode): Change type to unsigned char.
2633 (mode_mask_array): Declare.
2634 (GET_MODE_MASK): Use mode_mask_array.
2636 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
2638 * calls.c (expand_call) : Encapsulate code into
2639 copy_blkmode_from_reg.
2640 * expr.c (copy_blkmode_from_reg): New function.
2641 * expr.h (copy_blkmode_from_reg): New function.
2642 * integrate.c (function_cannot_inline_p): We can inline
2644 (expand_inline_function): Use copy_blkmode_from_reg
2645 if needed. Avoid creating BLKmode REGs.
2646 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
2649 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
2651 * config/v850/v850.c: Add function prototypes.
2652 Add support for v850 special data areas.
2654 * config/v850/v850.h: Add support for v850 special data areas.
2656 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
2657 HANDLE_PRAGMA_PACK_PUSH_POP.
2658 (push_alignment): New function: Cache an alignment requested
2659 by a #pragma pack(push,<n>).
2660 (pop_alignment): New function: Pop an alignment from the
2662 (insert_pack_attributes): New function: Generate __packed__
2663 and __aligned__ attributes for new decls whilst a #pragma pack
2665 (add_weak): New function: Cache a #pragma weak directive.
2666 (handle_pragma_token): Document calling conventions. Add
2667 support for #pragma pack(push,<n>) and #pragma pack (pop).
2669 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
2670 are defined enable HANDLE_PRAGMA_PACK.
2671 Move 'struct weak_syms' here (from varasm.c).
2672 Add pragma states for push and pop pragmas.
2674 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
2677 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
2678 HANDLE_GENERIC_PRAGMAS.
2680 * varasm.c: Move definition of 'struct weak_syms' into
2682 (handle_pragma_weak): Deleted.
2684 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2686 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2688 * c-decl.c (start_function): Add invocation of
2689 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
2691 * tm.texi: Remove description of non-existant macro
2692 SET_DEFAULT_SECTION_NAME.
2694 (HANDLE_SYSV_PRAGMA): Document.
2695 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
2697 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
2699 * config.sub: Recognize i[34567]86-pc-udk as new target.
2700 * configure.in: Likewise.
2701 * config/i386/t-udk: New file.
2702 * config/i386/udk.h: New file.
2704 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
2706 * reorg.c (check_annul_list_true_false): Remove unused variables.
2707 (steal_delay_list_from_target): Add missing "used_annul" variable.
2708 (try_merge_delay_insns): Close out half formed comment.
2710 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2712 * cpplib.c (macroexpand): If arg->raw_before or
2713 arg->raw_after, remove any no-reexpansion escape at the
2714 beginning of the pasted token. Correct handling of whitespace
2715 markers and no-reexpand markers at the end if arg->raw_after.
2717 * toplev.c (documented_lang_options): Recognize -include,
2718 -imacros, -iwithprefix, -iwithprefixbefore.
2719 * cpplib.c (cpp_start_read): Process -imacros and -include
2720 switches at the same time and in command-line order, after
2721 initializing the dependency-output code. Emit properly nested
2722 #line directives for them. Emit a #line for the main file
2723 before processing these switches, and don't do it again
2726 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
2728 * function.c (purge_addressof_1): Use bitfield manipulation
2729 routines to handle mem mode < reg mode.
2731 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2733 * reorg.c (try_merge_delay_insns): Account for resources referenced
2734 in each instruction in INSN's delay list before trying to eliminate
2735 useless instructions. Similarly when looking at a trial insn's delay
2738 * reorg.c (check_annul_list_true_false): New function.
2739 (steal_delay_list_from_{target,fallthrough}): Call it and also
2740 refine tests for when we may annul if already filled a slot.
2741 (fill_slots_from_thread): Likewise.
2742 (delete_from_delay_slot): Return newly-created thread.
2743 (try_merge_delay_isns): Use its new return value.
2745 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
2747 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
2748 used to compute a giv or as some other non-counting use.
2750 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2752 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2753 * local-alloc.c (find_free_reg): Use it.
2754 * global.c (find_reg): Likewise.
2755 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
2757 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
2758 * caller-save.c (init_caller_save): Use it.
2759 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
2761 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2763 * configure.in: Add --enable-cpplib option which uses cpplib
2764 for cpp, but doesn't link cpplib into cc1. Make help text
2765 capitalization consistent.
2766 * configure: Rebuilt.
2768 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
2770 * function.c (gen_mem_addressof): If the address REG is
2771 REG_USERVAR_P make the new REG be so also.
2772 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
2773 in an attempt to clarify slightly.
2775 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
2777 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
2778 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
2780 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
2782 * toplev.c: Fix last patch.
2784 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
2786 * loop.c (get_condition): Fix typo in May 9 change.
2788 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2790 * invoke.texi (-fexceptions): Merge 2 different descriptions.
2792 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2794 * toplev.c (documented_lang_options): Spelling corrections.
2796 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2798 * configure.in: new flags --with-ld and --with-as, equivalent
2799 to setting LD and AS environment variables. Test whether
2800 specified arguments are GNU commands, and report them with
2801 checking messages. Use the specified AS for configure
2804 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
2806 * gcc.c (find_a_file): when looking for `as' and `ld', return
2807 the DEFAULT program if it exists
2808 * collect2.c (main): use DEFAULT_LINKER if it exists
2810 * gcc.c (find_a_file): the test for existence of a full
2811 pathname was reversed
2813 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
2815 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
2816 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
2818 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
2820 * tree.h (TYPE_BINFO): Document.
2822 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
2824 * i386-coff.h (dbxcoff.h): Added.
2826 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
2828 * toplev.c: fix bad patch around flag_data_sections.
2830 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
2832 * reload1.c (reload): Use reload_address_index_reg_class and
2833 reload_address_base_reg_class when setting
2834 caller_save_spill_class. (Patch generated by Jim Wilson:
2837 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
2839 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
2840 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
2841 * expr.c (store_field): Add alias_set parameter. Set the
2842 MEM_ALIAS_SET accordingly, if the target is a MEM.
2843 (expand_assignment): Use it.
2844 (store_constructor_field): Pass 0.
2845 (expand_expr): Likewise.
2847 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
2849 * flags.h: Add flag_data_sections.
2850 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
2851 (compile_file): Error if flag_data_sections not supported.
2852 * varasm.c (assemble_variable): Handle flag_data_sections.
2853 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
2854 * config/mips/elf.h: Likewise.
2855 * config/mips/elf64.h: Likewise.
2856 * invoke.texi: Describe -fdata-sections.
2858 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
2860 * invoke.texi (-ffloat-store): Clarify that this option
2861 does not affect intermediate results -- only variables.
2863 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
2865 * cpp.texi: Update for Fortran usage from Craig.
2867 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2869 * rs6000.c (function_arg_boundary): Revert accidental change on
2872 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
2874 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
2875 (output_mi_thunk): Declare.
2877 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
2878 (output_function_profiler): Use r12 for temp, instead of r11 so
2879 that we preserve the static chain register.
2881 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
2883 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
2885 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2887 * sh.c (gen_shl_sext): Fix case 5.
2889 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2891 * reload1.c (reload_combine): Re-add line that got accidentally lost.
2893 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2895 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
2896 accessing variables until they are initialized via va_arg().
2898 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2900 * reload1.c (reload_combine): Initialize set before using.
2902 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
2904 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
2907 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
2909 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
2910 operand3 with mask before using it. Patch provided by Jim Wilson.
2912 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2914 * config/sparc/sparc.c (function_value): Perform the equivalent of
2915 PROMOTE_MODE for ARCH64.
2916 (eligible_for_epilogue_delay): Allow DImode operations in delay
2917 slot of a return for ARCH64.
2919 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2921 * sh.md (sqrtsf2): Fix mode of sqrt.
2923 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2925 * reload1.c (choose_reload_regs): Also try inheritance when
2926 reload_in is a stack slot of a pseudo, even if we already got a
2929 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2931 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
2932 (reload_cse_regs): New function body: call reload_cse_regs_1,
2933 reload_combine, reload_cse_move2add.
2934 When doing expensive_optimizations, call reload_cse_regs_1 a
2935 second time after reload_cse_move2add.
2936 (reload_combine, reload_combine_note_store): New functions.
2937 (reload_combine_note_use): New function.
2938 (reload_cse_move2add, move2add_note_store): New functions.
2940 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2942 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
2943 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
2945 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
2946 more than 3 such reloads.
2948 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
2949 RELOAD_FOR_X_ADDR_ADDR reload.
2951 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2953 * expr.c (store_constructor): When initializing a field that is smaller
2954 than a word, at the start of a word, try to widen it to a full word.
2956 * cse.c (cse_insn): When we are about to change a register,
2957 remove any invalid references to it.
2959 (remove_invalid_subreg_refs): New function.
2960 (mention_regs): Special treatment for SUBREGs.
2961 (insert_regs): Don't strip SUBREG for call to mention_regs.
2962 Check if reg_tick needs to be bumped up before that call.
2963 (lookup_as_function): Try to match known word_mode constants when
2964 looking for a norrower constant.
2965 (canon_hash): Special treatment for SUBREGs.
2967 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2969 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
2970 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
2971 defined, emit libcall to __enable_execute_stack. Also fix opcodes
2972 and offsets in actual stack trampoline code so they match the
2973 commentary and actually work.
2975 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2977 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
2979 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
2980 tmake_file. Set extra_parts to needed crt objects.
2981 * configure: Rebuilt.
2982 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
2983 (TARGET_DEFAULT): Set if default is v9 or ultra.
2984 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
2985 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
2986 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
2987 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
2988 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
2989 (TARGET_VERSION): Define.
2990 (MULTILIB_DEFAULT): Define.
2991 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
2992 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
2993 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
2995 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
2996 * config/sparc/sparc.c (sparc_override_options): If arch and
2997 pointer size disagree, emit diagnostic and fix it up. If
2998 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
2999 V8PLUS in 64-bit mode.
3000 * config/sparc/t-linux64: New file.
3001 * config/sparc/t-sol2-64: New file.
3002 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
3003 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
3004 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
3005 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
3006 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
3007 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
3009 (STARTFILE_SPEC): Set approriately based upon those.
3010 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
3011 disposition of DEFAULT_ARCH32_P.
3012 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
3013 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
3014 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
3015 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
3016 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
3018 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
3020 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
3022 * rtl.h (init_virtual_regs): New function.
3023 * emit-rtl.c (init_virtual_regs): Define.
3024 (insn_emit): Use it.
3025 * integrate.c (save_for_inline_copying): Likewise.
3027 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
3029 * config/arm/thumb.h: The following patches were made by Jim Wilson:
3030 (enum reg_class): Add NONARG_LO_REGS support.
3031 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
3032 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
3033 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
3034 completes. Re-enable HImode REG+OFFSET addresses.
3035 (LEGITIMIZE_RELOAD_ADDRESS): Define.
3037 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
3039 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
3041 * alpha.c (get_aligned_mem): Revert Sep 20 change.
3042 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
3043 (alpha_align_insns): Properly calculate initial offset wrt max_align.
3045 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
3047 * arm.c (find_barrier): Revert change of Apr 23. Handle table
3048 jumps as a single entity, taking into account the size of the
3051 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
3053 * tree.def (SWITCH_EXPR): New tree node definition.
3055 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
3057 * version.c: Bump for snapshot.
3059 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
3061 * version.c: Bump for snapshot.
3063 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
3065 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
3068 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
3070 * Revert this patch.
3071 * reload.c (find_reloads): Do not replace a pseudo with
3072 (MEM (reg_equiv_addr)) in the initializing insn for the
3075 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
3077 * final.c (final_scan_insn): Disable tracking CC across branches.
3079 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3081 * expr.h (eh_rtime_match_libfunc): New extern declaration.
3082 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
3083 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
3084 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
3085 NULL. Only include <stdio.h> if inhibit_libc is not defined.
3087 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
3089 * toplev.c (rest_of_compilation): Skip compiling anything with
3090 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
3092 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
3094 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
3095 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
3096 use in_libcall_block.
3097 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
3098 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
3101 Mon Sep 21 14:02:23 1998
3103 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
3104 typo in no-fancy-math-387 description.
3106 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
3108 * version.c: Bump for snapshot.
3110 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
3112 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
3114 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
3116 * i386.h: (TARGET_SWITCHES) Add description fields for flags
3117 documented in install.texi.
3118 (TARGET_OPTIONS) Likewise.
3120 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
3122 * version.c: Bump for snapshot.
3124 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
3126 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
3127 * cccp.c (main): Likewise.
3129 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
3130 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
3133 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
3135 * Makefile.in (LIBS): Link in libiberty.a.
3136 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
3138 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
3140 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
3141 it to update bb boundaries. Update caller.
3142 * function.c (reposition_prologue_and_epilogue_notes): Update
3143 bb boundaries wrt the moved note.
3145 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
3147 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
3149 * configure: Regenerate.
3151 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
3153 * alpha.c (alpha_sr_alias_set): New variable.
3154 (override_options): Set it.
3155 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
3156 (mode_mask_operand): Fix signed-unsigned comparision warning.
3157 (alpha_expand_block_move): Likewise.
3158 (print_operand): Likewise.
3159 (get_aligned_mem): Use change_address.
3160 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
3161 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
3162 (alphaev4_next_nop, alphaev5_next_nop): New functions.
3163 (alpha_align_insns): Remade from old alphaev5_align_insns
3164 to handle multiple processors.
3165 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
3166 * output.h (label_to_alignment): Prototype.
3168 * tree.c (new_alias_set): New function.
3169 * tree.h (new_alias_set): Declare it.
3170 * c-common.c (c_get_alias_set): Use it.
3172 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
3174 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
3175 to an ABS expr, convert an unsigned input to signed.
3177 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
3179 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
3181 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3183 * configure.in: Add support for c4x targets.
3184 * configure: Rebuilt.
3186 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
3188 * combine.c (distribute_notes): If an insn is a cc0 user, only
3189 delete it if we can also delete the cc0 setter.
3191 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
3193 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
3194 (invert_truthvalue): Enable truthvalue inversion for
3195 floating-point operands if -ffast-math.
3197 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
3199 * configure.in: Disable collect2 for nextstep. Instead use
3201 * configure: Rebuilt.
3202 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
3203 (ENDFILE_SPEC): Define.
3204 (OBJECT_FORMAT_MACHO): Define.
3205 (EH_FRAME_SECTION_ASM_OP): Define.
3206 * crtstuff.c: Handle MACHO.
3208 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
3210 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
3212 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
3214 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
3215 (_fpadd_parts): Get sign right for 0.
3217 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3219 * ginclude/varargs.h: Add support for C4x target.
3220 * ginclude/stdargs.h: Likewise.
3222 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
3224 * alpha.c (alpha_return_addr): SET should be VOIDmode.
3225 (alpha_emit_set_long_const): Rewrite to be callable from reload
3227 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
3228 * alpha.md (movdi): Likewise.
3230 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
3232 * arm.c (add_constant): New parameter address_only, change caller.
3233 Set it non-zero if taking the address of an item in the pool.
3234 (arm_reorg): Handle cases where we need the address of an item in
3237 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
3239 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
3240 memory addresses that are not in standard canonical form.
3242 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
3244 * README.C4X: New file with information about the c4x ports.
3245 * ginclude/va-c4x.h: New file for c4x varargs support.
3246 * config/c4x: New directory with c4x port files.
3248 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
3250 * reload.c (find_reloads): Do not replace a pseudo with
3251 (MEM (reg_equiv_addr)) in the initializing insn for the
3254 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
3256 * toplev.c (rest_of_compilation): Set bct_p on second call to
3258 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
3260 (strength_reduce): Only call analyze_loop_iterations and
3261 insert_bct if bct_p set.
3262 (check_dbra_loop): Fix typo.
3263 (insert_bct): Use word_mode instead of SImode.
3264 (instrument_loop_bct): Likewise. Do not delete iteration count
3265 condition code generation insn. Initialize iteration count before
3267 * rtl.h (loop_optimize): Update prototype.
3269 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
3270 not doubleword aligned.
3272 * rs6000.c (optimization_options): New function.
3273 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
3274 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
3275 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
3276 first; cr1 can be used for FP record condition insns.
3278 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
3280 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
3283 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
3286 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
3288 (block_move_call): New function: Call a library routine to copy a
3290 (m32r_expand_block_move): New function: Expand a "movstrsi"
3291 pattern into a sequence of insns.
3292 (m32r_output_block_move): New function: Expand a
3293 "movstrsi_internal" pattern into a sequence of assembler opcodes.
3294 (m32r_block_immediate_operand): New function: Return true if the
3295 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
3297 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3299 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
3301 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
3303 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3305 * regmove.c (copy_src_to_dest): Check that modes match.
3307 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
3309 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
3311 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
3313 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
3314 narrower than FLOAT_REGS.
3316 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3318 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
3320 * Makefile.in (old_gxx_include_dir): removed
3322 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
3324 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
3327 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
3328 (sh_handle_pragma): Change function arguments to match new
3329 specification for HANDLE_PRAGMA.
3331 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3333 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
3335 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
3336 When generating output, initialize missing struct member to zero.
3338 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3340 * regmove.c (copy_src_to_dest): Don't copy if that requires
3341 (a) new register(s).
3343 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3345 * global.c (reg_allocno): Now static.
3346 * reload1.c (reg_allocno): Delete declaration.
3347 (order_regs_for_reload): Take no arguments. Don't treat regs
3348 allocated by global differently than those allocated by local-alloc.
3350 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
3352 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
3353 condition, fix format strings.
3354 (output_function_epilogue): Likewise.
3356 * m68k/m68k.c: Don't include <stdlib.h> directly.
3358 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
3360 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
3361 mem_first_set, mem_last_set; because 0 can be a CUID.
3362 (oprs_unchanged_p): Use new definition.
3363 (record_last_reg_set_info): Likewise.
3364 (record_last_mem_set_info): Likewise.
3365 (compute_hash_table): Likewise.
3367 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
3369 * rs6000.c (output_epilogue): Handle Chill.
3371 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3372 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3374 * combine.c (make_extraction): If no mode is specified for
3375 an operand of insv, extv, or extzv, default it to word_mode.
3376 (simplify_comparison): Similarly.
3377 * expmed.c (store_bit_field): Similarly.
3378 (extract_bit_field): Similarly.
3379 * function.c (fixup_var_regs_1): Similarly.
3380 * recog.c (validate_replace_rtx_1): Similarly.
3381 * mips.md (extv, extzv, insv expanders): Default modes for most
3382 operands. Handle TARGET_64BIT.
3383 (movdi_uld, movdi_usd): New patterns.
3385 * pa.c (emit_move_sequence): Do not replace a pseudo with its
3386 equivalent memory location unless we have been provided a scratch
3387 register. Similarly do not call find_replacement unless a
3388 scratch register has been provided.
3390 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3392 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
3395 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
3397 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
3398 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
3399 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
3400 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
3401 * c-decl.c (init_decl_processing): Update accordingly.
3402 * expr.c (expand_builtin): Likewise.
3404 * rtl.h (global_rtl): Add cfa entry.
3405 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
3406 (LAST_VIRTUAL_REGISTER): Update.
3407 * emit-rtl.c (global_rtl): Add cfa entry.
3408 (init_emit): Initialize it.
3409 * function.c (cfa_offset): New.
3410 (instantiate_virtual_regs): Initialize it.
3411 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
3412 (expand_function_end): Call expand_eh_return.
3413 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
3415 * except.c (current_function_eh_stub_label): Kill.
3416 (current_function_eh_old_stub_label): Likwise; update all references.
3417 (expand_builtin_set_return_addr_reg): Kill.
3418 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
3419 (expand_builtin_set_eh_regs): Kill.
3420 (eh_regs): Produce a third reg for the actual handler address.
3421 (eh_return_context, eh_return_stack_adjust): New.
3422 (eh_return_handler, eh_return_stub_label): New.
3423 (init_eh_for_function): Initialize them.
3424 (expand_builtin_eh_return, expand_eh_return): New.
3425 * except.h: Update prototypes.
3426 * flow.c (find_basic_blocks_1): Update references to the stub label.
3427 * function.h (struct function): Kill stub label elements.
3429 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
3430 register number is one that would be in the previous window.
3431 Provide a dummy definition for non-windowed targets.
3432 (get_reg_addr): New function.
3433 (get_reg, put_reg, copy_reg): Use it.
3434 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
3435 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
3437 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
3438 (alpha_init_expanders): Initialize it.
3439 (alpha_expand_epilogue): Use it.
3440 * alpha.h: Declare it.
3441 * alpha.md (eh_epilogue): New.
3443 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
3444 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
3446 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
3448 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
3451 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3453 * except.h (struct eh_entry): Add false_label field.
3454 (end_catch_handler): Add prototype.
3455 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
3456 (start_catch_handler): When using old style exceptions, issue
3457 runtime typematch code before continuing with the handler.
3458 (end_catch_handler): New function, generates label after handler
3459 if needed by older style exceptions.
3460 (expand_start_all_catch): No need to check for new style exceptions.
3461 (output_exception_table_entry): Only output the first handler label
3462 for old style exceptions.
3463 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
3464 mechanism into one function, if a runtime matcher is provided.
3466 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3468 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
3470 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
3472 * integrate.c (copy_decl_list): Fix typo.
3474 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3476 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
3479 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
3481 * version.c: Bump for snapshot.
3483 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
3485 * version.c: Bump for snapshot.
3487 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
3489 * version.c: Bump for snapshot.
3491 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3493 * invoke.texi (C Dialect Options): Put back missing @end itemize.
3495 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3497 * configure.in: remove usage of `!' to negate the result of a
3498 command; some common shells do not support it
3500 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3502 * configure.in: in sparc9-sol2 config, use 'if test' not
3504 * configure: Rebuilt.
3506 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
3508 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
3509 (CPP_CPU_DEFAULT_SPEC): Likewise.
3510 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
3511 for arch64 libfuncs.
3513 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
3516 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3518 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
3520 * collect2.c: Don't declare `sys_siglist' here.
3521 (my_strsignal): Prototype and define new function. Use it in
3522 place of `sys_siglist' hacks.
3524 * mips_tfile.c: Likewise.
3526 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
3527 (GCC_NEED_DECLARATIONS): Likewise.
3529 * system.h (strsignal): Prototype it, if necessary.
3530 (sys_siglist): Declare it, if necessary.
3532 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3534 * loop.c (move_movables): While removing insn sequences, preserve
3535 the next pointer of the most recently deleted insn when we skip
3538 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
3540 * objc/config-lang.in: Do not output the name of the selected
3541 thread file when building the front-end. The Makefile for the
3542 runtime library will do this.
3544 * objc/Make-lang.in: Do not build the runtime library or install
3545 the Objective C header files. The Makefile for the runtime
3546 library will do this.
3548 * objc/Makefile.in (all.indirect): Only build the front-end.
3549 (compiler): Rename to `frontend'.
3550 (obj-runtime): Remove target.
3551 (copy-headers): Likewise.
3552 (clean): No need to remove `libobjc.a' any longer.
3554 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
3556 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
3557 supported with -mcpu=xxx.
3559 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3561 * flow.c (mark_set_1): Recognize multi-register structure return
3562 values in CALL insns.
3563 (mark_used_regs): Likewise.
3564 (count_reg_sets_1): Likewise.
3565 (count_reg_references): Likewise.
3566 * rtlanal.c (note_stores): Likewise.
3567 (reg_overlap_mentioned_p): Likewise.
3568 * haifa-sched.c (check_live_1): Likewise.
3569 (update_live_1): Likewise.
3570 (sched_analyze_1): Likewise.
3571 (sched_note_set): Likewise.
3572 (birthing_insn_p): Likewise.
3573 (attach_deaths): Likewise.
3575 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
3578 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
3580 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
3582 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3584 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
3586 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3588 * configure.in: Add check for GAS subsection -1 support.
3589 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
3590 * configure config.in: Rebuilt.
3591 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
3592 SImode is subsection -1 works, else use DImode.
3593 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
3594 subsection -1 works.
3595 * config/sparc/sparc.c (sparc_output_addr_vec,
3596 sparc_output_addr_diff_vec): Use them if defined.
3598 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
3600 * tree.h (DECL_ORIGIN): New macro.
3601 * integrate.c (copy_and_set_decl_abstract_origin): New function.
3602 (copy_decl_list): Use it.
3603 (integrate_parm_decls): Likewise.
3604 (integrate_decl_tree): Likewise.
3605 * dwarf2out.c (decl_ultimate_origin): Simplify.
3606 * dwarfout.c (decl_ultimate_origin): Likewise.
3607 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
3608 (pushdecl): Likewise.
3610 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
3612 * config/rs6000/rs6000.c (output_epilog): Add Java support.
3614 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
3616 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
3618 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
3620 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
3621 empty or has a single entry.
3623 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
3624 before calling reg_to_stack.
3626 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
3628 * alpha.c (alphaev5_insn_pipe): Abort on default case.
3629 (alphaev5_next_group): Swallow CLOBBERs and USEs.
3631 * c-tree.h (warn_long_long): Declare it.
3633 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
3635 * emit-rtl.c (gen_lowpart_common): Disable optimization of
3636 initialized float-int union if the value is a NaN.
3638 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
3640 * c-lex.c (real_yylex): Don't warn about long long constants if
3641 we're allowing long long
3643 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3645 * except.h (current_function_eh_stub_label): Declare.
3646 (current_function_eh_old_stub_label): Declare.
3647 * function.h (struct function): New members eh_stub_label and
3649 * except.c (current_function_eh_stub_label): New variable.
3650 (current_function_eh_old_stub_label): New variable.
3651 (init_eh_for_function): Clear them.
3652 (save_eh_status): Save them.
3653 (restore_eh_status): Restore them.
3654 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
3655 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
3656 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
3657 make an edge from the block that contains it to the block starting
3658 with the label if this label is one of the eh stub labels.
3659 If eh stub labels exist, show they are reachable from the last block
3662 * reload1.c (reload): Break out several subroutines and make some
3664 (calculate_needs_all_insns): New function, broken out of reload.
3665 (calculate_needs): Likewise.
3666 (find_reload_regs): Likewise.
3667 (find_group): Likewise.
3668 (find_tworeg_group): Likewise.
3669 (something_needs_reloads): New global variable, formerly in reload.
3670 (something_needs_elimination): Likewise.
3671 (caller_save_spill_class): Likewise.
3672 (caller_save_group_size): Likewise.
3673 (max_needs): Likewise.
3674 (group_size): Likewise.
3675 (max_groups): Likewise.
3676 (max_nongroups): Likewise.
3677 (group_mode): Likewise.
3678 (max_needs_insn): Likewise.
3679 (max_groups_insn): Likewise.
3680 (max_nongroups_insn): Likewise.
3681 (failure): Likewise.
3683 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
3685 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
3687 * loop.c (load_mems): Copy rtx for output mem.
3689 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
3691 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
3692 mips1 or mips2 either.
3694 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
3696 * pa.c (pa_reorg): New marking scheme for jumps inside switch
3698 (pa_adjust_insn_length): Update to work with new marking scheme
3699 for jumps inside switch tables.
3700 * pa.md (switch_jump): Remove pattern.
3701 (jump): Handle jumps inside jump tables.
3703 * Makefile.in (profile.o): Depend on insn-config.h
3705 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
3707 * iris6.h (DWARF2_UNWIND_INFO): Undef.
3709 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3711 Add preliminary native sparcv9 Solaris support.
3712 * configure.in: Recognize sparv9-*-solaris2*
3713 * configure: rebuilt
3714 * config.sub: Recognize sparcv9 just like sparc64.
3715 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
3716 config/sparc/sol2-cn.asm: Macroize so it can be shared between
3717 32-bit and 64-bit Solaris systems.
3718 * config/sparc/t-sol2: Assemble those with cpp.
3719 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
3720 (*TF*_LIBCALL): If ARCH64 use V9 names.
3721 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
3723 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3725 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
3726 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
3728 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
3730 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
3731 to Pmode if CASE_VECTOR_MODE is something else.
3733 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
3735 * prefix.c (update_path): Correctly handle cases where PATH is
3736 a substring of the builtin prefix, but specifies a different
3739 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3741 * expr.c: Corrected comment about what MOVE_RATIO does.
3742 * config/alpha/alpha.h: Ditto.
3743 * config/1750a/1750a.h: Ditto.
3744 * config/clipper/clipper.h: Ditto.
3745 * config/i386/i386.h: Ditto.
3747 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
3749 * configure.in (m68k-next-nextstep3*): Use collect2.
3750 Similarly for x86 NeXT configurations.
3751 * configure: Rebuilt.
3753 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
3755 * configure.in: Don't assume srcdir is .../gcc
3756 * configure: Rebuilt.
3758 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
3760 * global.c: Update comments.
3761 (global_alloc): Assign allocation-numbers
3762 even for registers allocated by local_alloc in case
3763 they are later spilled and retry_global_alloc is called.
3764 (mark_reg_store, mark_reg_clobber,
3765 mark_reg_conflicts, mark_reg_death): Always record a
3766 conflict with a pseudo register even if it has been
3767 assigned to a hard register.
3768 (dump_conflicts): Don't list pseudo registers already assigned to
3769 a hard register as needing to be allocated, but do list their
3771 * local-alloc.c: Update comment.
3773 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
3775 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
3776 * configure: Rebuilt.
3778 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
3780 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
3782 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
3783 for all targets that set -msoft-float.
3785 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3787 * toplev.c (print_switch_values): Make static to match prototype.
3789 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
3791 * configure.in: If we are unable to find the "gnatbind" program,
3792 then do not configure the ada subdir.
3793 * configure: Rebuilt.
3795 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
3797 * version.c: Bump for snapshot.
3799 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
3801 * version.c: Bump for snapshot.
3803 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3805 * Makefile.in (toplev.o): Depend on $(EXPR_H).
3806 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
3808 * gansidecl.h: Define ATTRIBUTE_NORETURN.
3810 * genattrtab.c: Have insn-attrtab.c include toplev.h.
3812 * genextract.c: Have insn-extract.c include toplev.h.
3814 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
3816 * toplev.c: Include expr.h.
3817 (really_sorry, fancy_abort): Remove prototypes.
3818 (set_target_switch): Add argument in prototype.
3819 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
3820 (v_really_sorry): Likewise.
3821 (print_version, print_single_switch, print_switch_values): Make
3822 static and add prototype arguments.
3823 (decl_printable_name): Add prototype arguments.
3824 (lang_expand_expr_t): New typedef.
3825 (lang_expand_expr): Declare as a lang_expand_expr_t.
3826 (incomplete_decl_finalize_hook): Add prototype argument.
3827 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
3828 (botch): Likewise for variable `s'.
3829 (rest_of_type_compilation): Mark variables `type' and `toplev'
3830 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
3831 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
3832 (display_help): Make variable `i' an `unsigned long'.
3833 (main): Remove unused parameter `envp'.
3834 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
3835 Cast -1 when comparing it with a `size_t'.
3837 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
3838 prototype with ATTRIBUTE_NORETURN.
3839 (fatal_insn_not_found, fatal_insn, really_sorry,
3840 push_float_handler, pop_float_handler): Add prototypes.
3841 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
3842 (do_abort, botch): Add prototypes.
3844 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
3846 * final.c (final): If a label is reached only from a single jump,
3847 call NOTICE_UPDATE_CC on the jump and its predecessor before
3848 emitting the insn after the label.
3850 * i386.h: Add AMD K6 support.
3851 Change TARGET_* macros to use table lookup.
3852 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
3853 (ADJUST_COST): Change definition to call function in i386.c.
3854 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
3855 * i386.c: Add AMD K6 support.
3856 Add constants for feature tests used by TARGET_* macros.
3857 (split_di): If before reload, call gen_lowpart and gen_highpart.
3858 (x86_adjust_cost): New function.
3859 (put_jump_code): New function.
3860 (print_operand): New codes 'D' and 'd'.
3861 * i386.md: New insn types. New insn attribute "memory".
3862 Redefine scheduling parameters to use new types and add AMD K6
3863 support. Explicitly set type of most insns.
3864 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
3865 Pro and K6 prefer movl $1,reg to incl reg.
3866 (adddi3, subdi3): Set cc_status.
3867 (DImode shift patterns): Change label counters from HOST_WIDE_INT
3868 to int; x86 can't have more than 2^31 DImode shifts per file.
3869 (setcc): Combine all setcc patterns. Allow writing memory.
3870 Combine all jump patterns using match_operator.
3871 (*bzero): Name pattern. Emit mutliple stos instructions when that
3872 is faster than rep stos.
3873 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
3876 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
3878 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
3881 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
3883 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
3884 not whatever we're generating now.
3886 * alpha.c (set_frame_related_p, FRP): New.
3887 (alpha_expand_prologue): Mark frame related insns.
3888 (alpha_expand_epilogue): Likewise, but with a null FRP.
3889 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
3890 * alpha.md (exception_receiver): New.
3891 * alpha/crtbegin.asm (.eh_frame): New beginning.
3892 (__do_frame_setup, __do_frame_takedown): New.
3893 * alpha/crtend.asm (.eh_frame): New ending.
3894 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
3895 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
3896 (ASM_FILE_START): Don't emit .file for dwarf2.
3898 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
3899 * rtl.c (reg_note_name): Likewise.
3900 * rtl.texi (REG_NOTES): Likewise.
3901 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
3904 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
3906 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
3907 * i386.md (movsf, movdf, movxf): Validate memory address returned
3908 from force_const_mem. Kill useless REG_EQUAL setting code.
3910 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
3912 * m68k.md (zero_extendsidi2): Fix typo.
3914 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
3916 * configure.in: Removed references to the removed file
3917 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
3918 * arm*-*-netbsd* and ns32k-*-netbsd*.
3919 * config/i386/xm-netbsd.h: Removed unnecessary file.
3920 * config/m68k/xm-netbsd.h: Likewise.
3921 * config/sparc/xm-netbsd.h: Likewise.
3922 * config/mips/xm-netbsd.h: Likewise.
3924 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
3926 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
3927 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
3929 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
3930 for exact section attributions.
3932 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
3934 * i386/crtdll.h (CPP_PREDEFINES): Define.
3936 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
3938 * m68k.md (5200 movqi): Do not allow byte sized memory references
3940 * m68k.c (output_move_qimode): Do not use byte sized operations on
3943 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
3944 explicit rules for building. Similarly for alloca, vfprintf,
3945 choose-temp and mkstemp, getopt, getopt1, and obstack.
3946 (INCLUDES): Add $(srcdir)/../include.
3947 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
3948 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
3950 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
3952 * gcc.c (do_spec_1): [case 'o'] Account for
3953 lang_specific_extra_outfiles.
3954 (main): Correctly clear all slots in outfiles for
3955 lang_specific_extra_outfiles. Set input_file_number before
3956 calling lang_specific_pre_link.
3958 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
3960 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
3962 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3964 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
3966 (sparc_output_deferred_case_vectors): If no work to do, return.
3967 Fix thinko in Sept 1 change.
3969 1998-09-03 SL Baur <steve@altair.xemacs.org>
3971 * Makefile.in: add semicolon in BISON definition for portability.
3973 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
3975 * config/nextstep.c (handle_pragma): Correct name of third
3978 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
3980 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
3981 * config/m32r/m32r.h: Make register 17 be fixed.
3982 * config/m32r/m32r.c: Use SImode for cc operations.
3984 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
3986 * invoke.texi (Warning Options): Add -Wnon-template-friend
3989 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
3991 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
3993 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
3995 * rs6000.md (movsf): Disable explicit secondary-reload-like
3996 functionality if TARGET_POWERPC64.
3997 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
4000 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
4002 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
4003 and term.h from fixinc.wrap.
4005 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4007 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
4008 safe to include both string.h and strings.h together.
4009 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
4010 which headers to search for function declarations. Continue to
4011 prefer string.h over strings.h when both are not acceptable.
4013 * acconfig.h (STRING_WITH_STRINGS): Add stub.
4015 * configure.in: Call GCC_HEADER_STRING.
4017 * system.h: Test STRING_WITH_STRINGS when deciding which headers
4018 to include. Continue to prefer string.h over strings.h when both
4021 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4023 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
4024 not assume top 32-bits of symbolic addresses are zero if
4027 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
4029 * ginclude/va-alpha.h: Protect entire second portion of the
4030 file against double inclusion.
4032 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
4034 Added support for the Boehm's garbage collector.
4035 * configure.in: Handle --enable-objc-gc.
4036 * configure: Rebuilt.
4037 * Makefile.in (CHECK_TARGETS): Add check-objc.
4038 (check-objc): New rule.
4039 * objc/Make-lang.in: Build a different Objective-C library that
4040 runs with the Boehm's collector.
4041 * objc/encoding.c (objc_round_acc_size_for_types): New function.
4042 * objc/encoding.c: Correctly compute the size of compound types in
4043 the presence of bitfields. Skip the variable name of the type if
4044 any. Added support for long long.
4045 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
4046 (_F_GCINVISIBLE): New mask.
4047 * objc/gc.c: New file. Compute the type memory mask associated with
4048 a class based on the runtime information.
4049 * objc/misc.c: Added the hooks that use the Boehm's collector
4050 allocation functions.
4051 * objc/objc-act.c (build_class_template): Generate a new class
4052 member (gc_object_type) to hold the class' type memory mask.
4053 (build_shared_structure_initializer): Initialize the new member to
4055 (encode_complete_bitfield): New function. Generate the new
4057 (encode_field_decl): Generate the new encoding only for the GNU
4059 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
4061 (class_get_gc_object_type): New function to mark a pointer instance
4062 variable as a weak pointer.
4063 * objc/objc-features.texi: New file.
4064 * objc/objc.h (gc_object_type): New class member.
4065 * objc/objects.c (class_create_instance): Create a typed memory
4066 object when compiled with Boehm's collector support.
4067 * objc/sendmsg.c (__objc_init_install_dtable): Call
4068 __objc_send_initialize instead of setting the initialize flag.
4069 (__objc_send_initialize): Call __objc_generate_gc_type_description
4070 to generate the class type memory mask. Rewrite the code that
4071 sends the +initialize so that it is called only once (bug report
4072 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
4073 * testsuite/objc: New testsuite for Objective-C type encoding.
4074 * testsuite/lib/objc-torture.exp: New file.
4075 * testsuite/lib/objc.exp: New file.
4077 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
4079 * jump.c (jump_optimize): In if/then/else transformations, add
4080 another call to modified_between_p for the jump insn.
4082 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
4084 * fix-header.c (symlink): Treat like readlink.
4086 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4088 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
4091 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
4093 * config/nextstep.h: Update HANDLE_PRAGMA macro.
4094 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
4095 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
4097 * config/nextstep.c (handle_pragma): Take three arguments, as per
4098 the new HANDLE_PRAGMA macro specification.
4099 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
4100 per the new HANDLE_PRAGMA macro specification.
4101 * config/i960/i960.c (process_pragma): Take three arguments, as
4102 per the new HANDLE_PRAGMA macro specification.
4104 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
4106 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
4107 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
4108 if unknown pragmas are encountered.
4109 (handle_sysv_pragma): Interpret return code from
4110 handle_pragma_token (). Return success/failure indication rather
4111 than next unprocessed character.
4112 (pragma_getc): New function: retrieves characters from the
4113 input stream. Defined when HANDLE_PRAGMA is enabled.
4114 (pragma_ungetc): New function: replaces characters back into the
4115 input stream. Defined when HANDLE_PRAGMA is enabled.
4117 * c-pragma.c (handle_pragma_token): Return success/failure status
4120 * c-pragma.h: Change prototype of handle_pragma_token().
4122 * varasm.c: (handle_pragma_weak): Only create this function if
4123 HANDLE_PRAGMA_WEAK is defined.
4125 * c-common,c (decl_attributes): If defined call the expression
4126 contained within the INSERT_ATTRIBUTES macro before adding
4127 attributes to a decl.
4129 * tm.texi (HANDLE_PRAGMA): Document the new verion of
4130 HANDLE_PRAGMA, which takes three arguments.
4131 (INSERT_ATTRIBUTES): Document this new macro.
4133 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
4134 new INSERT_ATTRIBUTES macro.
4136 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4138 * config/sparc/sparc.md (movdf): Only generate special RTL for
4139 LABEL_REFs when PIC.
4140 (move_label_di): Remove
4141 (movdi_pic_label_ref, movdi_high_pic_label_ref,
4142 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
4143 references when PIC.
4144 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
4145 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
4146 output an .xword for all 64-bit cases.
4148 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4150 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
4151 alignment, use FUNCTION_BOUNDARY instead.
4152 (sparc_output_deferred_case_vectors): Likewise.
4154 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4156 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
4157 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
4159 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
4161 * alpha/va_list.h: New file.
4162 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
4164 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
4166 * NEWS: Add SCO Openserver and Unixware 7 notes.
4170 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
4172 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
4173 (record_constant_1): Handle RANGE_EXPR.
4175 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
4177 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
4178 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
4179 and NOTE_INSN_RANGE_END specially.
4180 (reemit_notes): Likewise.
4182 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4184 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
4185 (ultrasparc_sched_init): Remove unneeded &.
4187 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4189 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
4190 for m68020-60, to prevent the use of fintrz.
4192 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
4194 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
4196 * Makefile.in: Likewise.
4197 * configure: Regenerated.
4199 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
4201 * configure.in (gxx_include_dir): Changed to
4202 '${prefix}/include/g++'-${libstdcxx_interface}.
4203 * configure: Rebuilt.
4205 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
4207 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
4209 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
4210 *sequences* *below* which scalar moves will be used.
4212 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
4214 * collect2.c (mktemp): Delete unused declaration.
4216 * config/xm-netbsd.h: Remove unnecessary file.
4217 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
4218 file anymore, it is not needed.
4220 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
4222 * convert.c (convert_to_integer): Issue an error on conversions to
4225 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
4227 * Makefile.in: Add lang_tree_files and gencheck.h.
4228 * configure.in: Generate them.
4229 * gencheck.c: Include gencheck.h.
4231 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4233 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
4234 movdi_lo_sum_pic and movdi_high_pic and make visible.
4235 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
4236 emit these when Pmode is not SImode.
4237 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
4239 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
4241 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
4242 .linkonce directive after the first time.
4244 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
4246 * m68k.md (beq0_di): Generate correct (and more efficient) code when
4247 the clobbered operand overlaps with an input.
4248 (bne0_di): Similarly.
4250 * Makefile.in (INSTALL): Remove "--no-header" argument.
4252 * NEWS: Various updates.
4254 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4256 * config/sparc/sparc.c (arith_operand, const64_operand,
4257 const64_high_operand, arith_double_4096_operand): Mark mode as
4259 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
4261 (sparc_emit_set_const64): Remove unused variable i.
4262 (sparc_splitdi_legitimate): Likewise for addr_part.
4263 (ultra_code_from_mask): Likewise for mask.
4264 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
4265 reverse return values so it matches usage and comments.
4266 (ultra_flush_pipeline): Likewise.
4267 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
4268 this_type, and allow loads and stores of differing FP modes as
4269 they do not create a conflict.
4270 (ultra_find_type): Initialize fpmode to SFmode, fix
4271 parenthesization thinkos in large conditional.
4272 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
4273 Init free_slot_mask after ultra_cur_hist is reset, not before.
4274 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
4275 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
4276 use ultra_flush_pipeline instead, then re-init group pointer.
4277 Fix statement with no effect. If no progress made in, and no
4278 instructions scheduled at all, advance to new pipeline cycle else
4279 we get into an endless loop.
4280 (ultrasparc_adjust_cost): Remove previous arg.
4281 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
4283 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
4285 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
4286 code. Use reg_overlap_mentioned_p to detect when source and
4287 destination overlap.
4288 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
4290 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
4292 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
4293 COMPARISON_VAL, into invariant_p.
4295 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4297 * regmove.c (regclass_compatible_p): New function.
4298 (regmove_optimize): Use it.
4300 Use NREGS parameter insted of calling max_reg_num.
4302 (fixup_match_1): Don't use code = MINUS when later tieing with
4303 a hard register is likely.
4305 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4307 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
4308 COMPARISON_VAL was normalized.
4310 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
4312 * loop.c (check_dbra_loop): The loop ending comparison value
4313 must be an invariant or we can not reverse the loop.
4315 * loop.c (scan_loop): Count down from max_reg_num - 1 to
4316 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
4318 (load_mems_and_recount_loop_regs_set): Likewise.
4320 * i386.c (print_operand): Remove obsolete 'c' docs.
4322 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
4324 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
4325 * frame.c (init_object_mutex): New function.
4326 (init_object_mutex_once): Likewise.
4327 (find_fde): Call it.
4328 (__register_frame_info): Likewise.
4329 (__register_frame_info_table): Likewise.
4330 (__deregister_frame_info): Likewise.
4332 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
4334 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
4336 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4338 * loop.c (check_dbra_loop): Enable code for reversal
4339 of some loops without a known constant loop end.
4341 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
4343 * haifa-sched.c (last_clock_var): New.
4344 (schedule_block): Initialize it.
4345 (schedule_insn): Use it to fill insn modes with issue information.
4347 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
4348 Tag trapb and next insn with TImode.
4349 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
4350 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
4351 Invoke alphaev5_align_insns as appropriate.
4352 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
4353 (MD_SCHED_VARIABLE_ISSUE): New.
4354 * alpha.md (attr type): Add multi.
4355 (define_asm_attributes): New.
4356 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
4357 (arg_home): Likewise.
4358 (fnop, unop, realign): New.
4360 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
4362 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
4363 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
4365 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
4366 (rs6000-ibm-aix4.[12]*): Likewise.
4367 * configure: Regnerate.
4369 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
4371 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
4372 already contains the return address.
4374 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
4376 * calls.c (expand_call): Use bitfield instructions to extract/deposit
4377 word sized hunks when loading unaligned args into registers.
4379 * haifa-sched.c (sched_analyze_insn): Only create scheduling
4380 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
4382 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
4384 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4386 * loop.c (check_dbra_loop): Add some code that would allow reversal
4387 of some loops without a known constant loop end if it were enabled.
4389 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
4391 * mips.md (lshrsi3_internal2+2): Fix type-o.
4393 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4395 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
4396 correctly with regards to stdio.h.
4398 * calls.c: Remove stdarg.h/varargs.h.
4401 * combine.c: Likewise.
4402 * cpperror.c: Likewise.
4403 * cpplib.c: Likewise.
4404 * cpplib.h: Likewise.
4405 * doprint.c: Likewise.
4406 * emit-rtl.c: Likewise.
4407 * final.c: Likewise.
4408 * fix-header.c: Likewise.
4410 * genattr.c: Likewise.
4411 * genattrtab.c: Likewise.
4412 * gencodes.c: Likewise.
4413 * genconfig.c: Likewise.
4414 * genemit.c: Likewise.
4415 * genextract.c: Likewise.
4416 * genflags.c: Likewise.
4417 * genopinit.c: Likewise.
4418 * genoutput.c: Likewise.
4419 * genpeep.c: Likewise.
4420 * genrecog.c: Likewise.
4421 * mips-tfile.c: Likewise.
4422 * prefix.c: Likewise.
4423 * protoize.c: Likewise.
4424 * regmove.c: Likewise.
4425 * toplev.c: Likewise.
4428 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4430 * config/sparc/sparc.c (sparc_override_options): If not
4431 TARGET_FPU, turn off TARGET_VIS.
4432 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
4433 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
4434 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
4435 (movdi_insn_sp64): Add VIS fzero alternative.
4436 (clear_sf, clear_df): New VIS patterns.
4437 (movsf, movdf expanders): Allow fp_zero_operand flat out when
4439 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
4441 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
4443 * loop.c (n_times_set, n_times_used, may_not_optimize,
4444 reg_single_usage): Convert to varrays. All uses changed.
4445 (insert_loop_mem): Return a value.
4446 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
4447 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
4450 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
4453 * configure.in: Do not set thread_file to "irix" since no such
4456 * sparc.md (float abs/neg splits): Check reload_completed before
4457 calling alter_subreg.
4459 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4461 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
4463 * config/sparc/sparc.h: Declare it.
4464 * config/sparc/sparc.md (float abs/neg splits): Use it.
4465 (all other splits): Handle SUBREGs properly where necessary.
4466 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
4468 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
4470 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
4471 an insn on the unfilled_slots_list that has no delay slots.
4472 (fill_eager_delay_slots): Similarly.
4474 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
4476 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
4477 as an ordinary operand.
4479 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
4481 * tree.c (valid_machine_attribute): Don't apply attributes to both
4484 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
4486 * reload.c (operands_match_p): Handle rtvecs.
4488 * i386.c (legitimate_pic_address_disp_p): New.
4489 (legitimate_address_p): Use it.
4490 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
4491 Handle constant pool symbols just like statics.
4492 (emit_pic_move): Use Pmode not SImode for clarity.
4493 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
4494 [UNSPEC]: New, handling what we killed above.
4495 [PLUS]: Detect and abort on invalid symbol arithmetic.
4496 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
4498 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
4500 * alias.c: Include output.h.
4501 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
4502 different if we're in a varargs function.
4503 * Makefile.in (alias.o): Depend on output.h
4505 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4507 * sh.h (GIV_SORT_CRITERION): Delete.
4509 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
4511 * regclass.c (regclass): Use xmalloc/free instead of alloca.
4512 * stupid.c (stupid_life_analysis): Ditto.
4513 * reload1.c (reload): Ditto.
4515 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4517 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
4518 arith_double_4096_operand, arith_double_add_operand): New
4520 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
4521 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
4522 them to transform add/sub 4096 into add/sub -4096.
4524 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4526 * loop.c (scan_loop): Allocate some slop to handle pseudos
4527 generated by move_movables.
4528 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
4531 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
4533 * tree.def (DECL_RESULT): Correct documentation.
4535 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4537 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
4538 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
4539 conflicts will all RELOAD_FOR_OUTPUT reloads.
4541 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
4542 loads the function result, substitute with a USE.
4544 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4546 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
4547 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
4548 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
4549 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
4550 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
4551 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
4553 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
4554 'o' to 'm' for GPR variant constraints.
4556 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
4558 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
4560 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
4562 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
4563 when the source and destination overlap.
4565 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
4566 clash with global type.
4568 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
4570 * fixinc.irix: Add curses.h handling from fixinc.wrap.
4572 * c-common.c (combine_strings): Also set TREE_READONLY.
4573 Change warn_write_strings to flag_const_strings.
4574 * c-decl.c, c-tree.h: Likewise.
4576 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4578 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
4579 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
4580 sequence, use SET/IOR instead so CSE can see it.
4581 * config/sparc/sparc.md (movhi_const64_special,
4582 movsi_const64_special): New patterns necessitated by that change.
4583 (movhi_high): Remove.
4584 (movhi_lo_sum): Change to match an IOR.
4585 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
4586 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
4587 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
4588 (movdf splits): Allow when not V9 or when not ARCH64 and integer
4589 registers are involved.
4590 (snesi_zero_extend split): Remove reload_completed test.
4591 (unnamed plus and minus zero_extend sidi splits): Add it.
4593 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
4595 * extend.texi: Remove description of extension to explicit
4596 instantiation that is now endorsed by standard C++.
4598 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4600 * config/arc/arc.c (arc_initialize_pic): Remove.
4601 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
4602 nothing on any platform and is invoked by no-one, it does not even
4603 appear in the documentation.
4604 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
4605 * config/sparc/sparc.c (initialize_pic): Likewise.
4606 (find_addr_reg): Remove this as well, no longer referenced after
4609 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
4611 * recog.c (validate_replace_rtx_group): New function.
4612 * recog.h (validate_replace_rtx_group): Declare it.
4613 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
4614 the entire group of substitutions.
4616 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
4618 * loop.c (load_mems): Fix initializers.
4620 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4622 * config/sparc/sparc.md (TFmode splits): Handle destination
4623 registers being referenced in the address correctly.
4625 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
4626 TREE_UNSIGNED, when bitsize of type's mode is larger than
4627 HOST_BITS_PER_WIDE_INT.
4629 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4631 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
4632 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
4633 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
4635 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
4638 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
4640 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
4641 * h8300.h (TINY_DATA_NAME_P): Likewise.
4642 (STRIP_NAME_ENCODING): Handle '&'.
4644 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
4645 register (it could be accessed via an outer SUBREG).
4646 (REG_OK_FOR_BASE_P): Likewwise.
4647 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
4649 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
4652 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
4654 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4656 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
4657 must be offsettable so the splits can be made.
4659 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
4661 * config/i386/winnt.c: Include system.h, not stdio.h to get
4662 sys/param.h pulled in before rtl.h in case the system defines MIN
4665 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
4667 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
4669 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
4671 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
4673 * cpplib.c (cpp_define): Handle macros with parameters.
4675 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4677 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
4678 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
4679 and DImode 64-bit. Use llong for minimal-toc SFmode and
4680 SYMBOL_REF / LABEL_REF 64-bit.
4681 (output_function_profiler): Use llong for profiler label and ld to
4682 load 64-bit label address.
4684 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
4686 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
4689 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
4691 * version.c: Bump for snapshot.
4693 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
4695 * version.c: Bump for snapshot.
4697 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
4699 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
4701 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
4703 * tm.texi (Misc): Fix typo "teh".
4705 * tm.texi (PIC): Fix typo "PPIC".
4707 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
4708 effect when -O2 and higher.
4709 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
4711 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
4713 * regclass.c: Changed register set documentation to be consistent
4716 * final.c (final_start_function) Removed redundant test for
4719 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
4721 * rtl.h (rtx_function): New type.
4722 (for_each_rtx): New function.
4723 * rtlanal.c (for_each_rtx): Define it.
4725 * recog.c (change_t): New type.
4726 (change_objects, change_old_codes, change_locs, change_olds):
4728 (changes): New variable.
4729 (validate_change): Dynamically allocate room for more changes, if
4730 necessary. Uses changes array instead of change_objects, etc.
4731 (apply_change_group): Use changes array instead of
4732 change_objects, etc.
4734 * loop.c (loop_mem_info): New type.
4735 (loop_mems): New variable.
4736 (loop_mems_idx): Likewise.
4737 (looop_mems_allocated): Likewise.
4738 (scan_loop): Remove nregs parameter.
4739 (next_insn_in_loop): New function.
4740 (load_mems_and_recount_loop_regs_set): Likewise.
4741 (load_mems): Likewise.
4742 (insert_loop_mem): Likewise.
4743 (replace_loop_mem): Likewise.
4744 (replace_label): Likewise.
4745 (INSN_IN_RANGE_P): New macro.
4746 (loop_optimize): Don't pass max_reg_num() to scan_loop.
4747 (scan_loop): Remove nregs parameter, compute it after any new
4748 registers are created by load_mems. Use INSN_IN_RANGE_P and
4749 next_insn_in_loop rather than expanding them inline. Call
4750 load_mems to load memory into pseudos, if appropriate.
4751 (prescan_loop): Figure out whether or not there are jumps from the
4752 loop to targets other than the label immediately following the
4753 loop. Call insert_loop_mem to notice all the MEMs used in the
4754 loop, if it could be safe to pull MEMs into REGs for the duration
4756 (strength_reduce): Use next_insn_in_loop. Tweak comments.
4758 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
4760 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
4762 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4764 * config/sparc/sparc.c (finalize_pic): Check for the correct
4765 nonlocal_goto_receiver UNSPEC number.
4766 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
4767 making note of this dependency existing in sparc.c
4768 (negtf2_notv9 split): Give NEG SFmode.
4769 (negsf2): Fix insn output string.
4771 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
4773 * c-common.c (decl_attributes): Issue an error if the argument
4774 to alias is not a string.
4776 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
4778 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
4779 pending memory flush list.
4781 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
4783 (try_combine): Allow combining insns with REG_LIBCALL notes.
4785 * expr.c (emit_block_move): Do not call memcpy as a libcall
4786 instead build up a CALL_EXPR and call it like any other
4788 (clear_storage): Similarly for memset.
4790 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
4793 * Makefile.in (cplus-dem.o): Provide explicit rules for building
4796 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
4797 and REG_LIVE_LENGTH as successful substitutions are made.
4799 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4801 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
4802 statement after end of loop label.
4804 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4806 * config/sparc/sparc.c (ultra_types_avail): New variable.
4807 (ultra_build_types_avail): New function to record mask of insn
4808 types in ready list at this cycle.
4809 (ultrasparc_sched_reorder): Call it.
4810 (ultra_find_type): Use it to quicken the search. Also simplif
4811 dependency check, don't use rtx_equal_p because we know exactly
4812 what we are looking for.
4814 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
4816 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
4817 for architecture v4.
4819 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4821 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
4823 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
4824 movdf_const_intreg and helper splits): New patterns to move float
4825 constants into integer registers.
4826 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
4829 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
4832 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
4834 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
4836 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
4837 a BASE_REGS register is needed as an intermediate when copying
4838 a symbolic value into any register class other than BASE_REGS.
4840 * expr.c (move_by_pieces): No longer static. Remove prototype.
4841 * rtl.h (move_by_pieces): Add extern prototype.
4842 * mips.c (expand_block_move): Handle aligned straight line copy by
4843 calling move_by_pieces.
4845 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
4848 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
4850 * stmt.c (expand_end_loop): Tidy. Allow unconditional
4851 jumps out of the loop to be treated as part of the exit test.
4853 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4854 Jeff Law <law@cygnus.com>
4856 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
4857 * cplus-dem.c: Delete.
4859 * Makefile.in (fold-const.o): depend on $(RTL_H).
4861 * fold-const.c: Include rtl.h to get the prototype for
4862 `set_identifier_local_value'.
4864 * loop.c (express_from_1): Remove unused variable `tmp'.
4865 (combine_givs): cast the first argument of bzero to char *.
4867 * toplev.c (display_help): Remove unused variable `looking_for_start'.
4869 * c-decl.c (init_decl_processing): Remove unneeded &.
4871 * alpha.h (alpha_initialize_trampoline): Provide prototype.
4873 * except.c (set_exception_lang_code, set_exception_version_code):
4874 Change parameter from `short' to `int' to avoid using a gcc
4877 * except.h (set_exception_lang_code, set_exception_version_code):
4878 Likewise for prototypes.
4880 * flow.c (count_reg_references): Remove unused variables `regno'
4883 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
4885 * prefix.c (translate_name): Cast the result of `alloca'.
4887 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
4889 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4891 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
4893 (valid_dbcc_comparison_p): Mark mode argument as unused.
4894 (symbolic_operand): Likewise.
4895 (legitimize_pic_address): Likewise.
4896 (const_uint32_operand): Likewise.
4897 (const_sint32_operand): Likewise.
4898 * sched.c [!INSN_SCHEDULING]: Define only dummy function
4899 schedule_insns and comment out rest of file.
4901 * m68k.c (output_move_simode_const): Use subl to move a zero into an
4903 (output_move_[hq]imode): Likewise.
4905 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
4907 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
4908 * invoke.texi: Corresponding changes.
4910 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
4912 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
4914 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4916 * config/sparc/sparc.c (ultra_code_from_mask,
4917 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
4918 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
4919 ultrasparc_sched_init, ultrasparc_variable_issue,
4920 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
4921 functions to describe UltraSPARC pipeline exactly to Haifa.
4922 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
4923 as there is nothing the scheduler can do about it. Indicate that
4924 REG_DEP_OUTPUT's collide. Fixup formatting.
4925 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
4926 divide costs on Ultra for DImode.
4927 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
4929 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
4930 ieuN and add call_no_delay_slot to type list.
4931 (cti function unit): New unit for branches on UltraSPARC.
4932 (subx/addx insns): Set type to misc.
4933 (sidi zero/sign extension insns on arch64): Set type to shift.
4934 (sign_extendhidi2_insn): Set type to sload.
4936 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
4938 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
4939 (output_epilog): Use if != 0 for offset.
4940 (rs6000_fatal_bad_address): Prepare for Intl.
4941 * rs6000.h (rs6000_fatal_bad_address): Declare.
4942 * rs6000.md (movsfcc, movdfcc): Use else if.
4943 (elf_high): Use {liu|lis}.
4944 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
4945 (movsi): Use rs6000_fatal_bad_address.
4947 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
4949 * reload.c (find_equiv_reg): Reject equivalences separated
4950 by a volatile instruction.
4952 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
4954 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
4956 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
4958 * alpha.md (movsicc): Fix mode mismatch.
4960 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
4962 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
4964 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
4966 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4968 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
4969 write-only modifier from operand 1 constraint.
4971 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4973 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
4974 emitting a XOR of -1 at the end, emit a NOT instead for combine's
4976 (sparc_emit_set_const64): Likewise, also when computing trailing
4977 bits do not negate low_bits and make fast_int an int.
4979 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
4981 * loop.c (add_label_notes): Do not ignore references to labels
4982 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
4983 * gcse.c (add_label_notes): Similarly.
4985 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
4987 * m68k.md (adddi_dilshr32): One of the operands must be a register.
4988 (adddi_dishl32): Similarly.
4990 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
4992 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
4993 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
4994 * cse.c (cse_basic_block): Add parens to shut up warnings.
4996 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4998 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
4999 sparc_emit_set_const64_longway, const64_is_2insns,
5000 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
5001 in 64-bit constant formation.
5002 * config/sparc/sparc.md (snesi_zero_extend split): Generate
5003 rtl for addx not subx.
5004 (define_insn movdi_const64_special): Make available even when
5005 HOST_BITS_PER_WIDE_INT is not 64.
5006 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
5007 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
5008 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
5009 instances of operand 1 inside a QI subreg.
5010 (xordi3_sp64_dbl): Remove '%' constraint for op1.
5011 (one_cmpldi2_sp64): Fix output string.
5012 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
5014 (unnamed arch64 ashift DI): Truncate shift count if greater than
5017 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5019 * expr.c (store_expr): Don't optimize away load-store pair
5020 when either source or destination have a side effect.
5022 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
5024 * genrecog.c (add_to_sequence): Fatal error if the modes of the
5025 operands of SET are incompatible.
5027 * alpha.md: Fix max and min patterns so modes of SET operands match.
5029 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
5031 * configure.in: Avoid [[ by using test and changequote.
5032 * configure: Rebuild.
5034 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5036 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
5038 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
5039 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
5040 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
5041 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
5042 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
5043 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
5044 Fix mismatching modes in SET operands.
5045 (conditional move patterns): Fix formatting.
5046 (unnamed subx arch64 pattern): Remove duplicate insn.
5048 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5050 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5051 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
5052 (input_operand): Fixup test for what we accept for constant
5054 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
5056 (safe_constDI): Remove.
5057 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
5058 gen_safe_XOR64): New functions.
5059 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
5060 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
5062 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
5063 available when HOST_BITS_PER_WIDE_INT is not 64.
5064 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
5065 move before movdi_insn_sp64 pattern.
5066 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
5067 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
5068 symbolic_operand as predicate for second operand.
5069 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
5070 expander): Give set VOIDmode.
5072 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
5074 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
5076 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
5078 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
5080 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
5082 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
5084 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
5086 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
5088 * install.texi: Various SCO OpenServer tweaks.
5090 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
5092 * reload1.c (eliminate_regs_in_insn): Handle another case when
5093 eliminating the frame pointer to the hard frame pointer. Add
5094 missing ep->to_rtx check to one existing case.
5096 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
5098 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
5100 * tree.h: De-conditionalize init_priority code.
5102 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
5103 * collect2.c (NM_FLAGS): Change from -p to -n.
5105 * configure.in: Turn on collect2 for mipstx39-elf.
5106 Handle use_collect2=no properly.
5108 * c-common.c: De-conditionalize init_priority code.
5109 * collect2.c (extract_init_priority, sort_ids): New fns.
5110 (main): Call sort_ids.
5111 Move sequence_number to file scope.
5113 * configure.in: Handle --enable-init-priority.
5114 * c-common.c (attrs): Add A_INIT_PRIORITY.
5115 (init_attributes, decl_attributes): Likewise.
5116 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
5117 * tree.c (get_file_function_name_long): Split out...
5118 (get_file_function_name): ...from here.
5120 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
5122 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
5125 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
5127 * toplev.c (display_help): Add braces to shut up warnings.
5128 * tree.c (simple_cst_equal): Likewise.
5130 * fold-const.c (non_lvalue): Don't deal with null pointer
5132 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5134 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
5135 of any size to a pointer.
5137 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
5139 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
5141 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
5143 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
5144 which will be saved.
5145 * mn10300.md (prologue insn): Only save registers which need saving.
5146 (epilogue insn): Similarly.
5148 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
5151 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
5153 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
5154 VAR_DECL's in gp addressable sections.
5156 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
5158 * sparc.c: Change return <exp> to <exp>; return; in functions
5160 * sparc.md: Add empty semicolon statement after final label in
5163 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5165 * config/sparc/sparc.md (define_insn addx_extend): Rename to
5166 addx_extend_sp64, only allow when TARGET_ARCH64.
5167 (define_insn addx_extend_sp32 and split): Version that works when
5169 (define_insn subx_extend): Likewise.
5170 (define_split adddi3 and subdi3 with zero extension): Fixup and
5171 correct bugs when not TARGET_ARCH64.
5173 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
5175 * except.c (set_exception_lang_code, set_exception_version_code):
5176 Use prototype-style definition if __STDC__, to match declaration
5179 * genemit.c: Change FAIL and DONE macros not to use loops.
5181 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
5183 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
5184 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
5186 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
5188 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
5190 * README.g77: Update from Craig.
5192 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5194 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
5196 (safe_constDI sparc_emit_set_const64_quick1,
5197 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5198 analyze_64bit_constant, const64_is_2insns,
5199 create_simple_focus_bits): Fix some bugs when compiled on real
5201 (function_arg_record_value_3, function_arg_record_value_2,
5202 function_arg_record_value): Add fully prototyped forward decls.
5203 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
5204 to cmpsi_insn and use on both 64 and 32 bit targets.
5205 (define_insn cmpsi_insn_sp64): Remove.
5206 (define_expand zero_extendsidi2): Allow for 32-bit target too.
5207 (define_insn zero_extendsidi2_insn): Rename to
5208 zero_extendsidi2_insn_sp64.
5209 (define_insn zero_extendsidi2_insn_sp32): New pattern and
5210 assosciated forced split for it.
5212 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5214 * config/sparc/sparc.h: Declare them.
5215 (PREDICATE_CODES): Add them.
5216 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
5217 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
5219 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
5221 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
5222 in v9 case as the latter makes the Solaris assembler crash.
5224 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5226 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
5227 for TFmode when !v9. We require offsettable memory addresses.
5228 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
5229 DFmode register number conversions.
5230 * config/sparc/sparc.md (define_split DFmode moves): If register
5231 is a SUBREG do alter_subreg on it before using.
5232 (define_expand movtf): Fixup comment about alignment on v9.
5233 (define_split TFmode moves): Don't use gen_{high,low}part, create
5234 explicit SUBREGs instead.
5236 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
5238 * Makefile.in (mbchar.o): Depend on mbchar.c.
5240 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5241 Richard Henderson <rth@cygnus.com>
5243 Rewrite Sparc backend for better code generation and
5244 improved sparc64 support.
5245 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
5247 * config/sparc/sysv4.h: Likewise.
5248 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
5249 move_operand, v8plus_regcmp_op, emit_move_sequence,
5250 singlemove_string, doublemove_string, mem_aligned_8,
5251 output_move_double, output_move_quad, output_fp_move_double,
5252 move_quad_direction, output_fp_move_quad, output_scc_insn):
5254 (small_int_or_double): New predicate.
5255 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
5256 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
5257 old pic_{sethi,lo_sum}_si patterns.
5258 (mem_min_alignment): New generic function to replace
5259 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
5260 available and can test for arbitrary alignments. All callers
5262 (save_regs, restore_regs, build_big_number,
5263 output_function_prologue, output_cbranch, output_return,
5264 sparc_flat_save_restore, sparc_flat_output_function_prologue,
5265 sparc_flat_output_function_epilogue): Prettify
5267 (output_function_epilogue): Likewise and add code to output
5268 deferred case vectors.
5269 (output_v9branch): Likewise, add new arg INSN and use it to tack
5270 on branch prediction settings. All callers changed.
5271 (print_operand): Likewise and output %l44 for LO_SUMs when
5273 (sparc_splitdi_legitimate): New function to make sure DImode
5274 splits can be run properly when !arch64.
5275 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
5276 Reformat example code in comments.
5277 (set_extends): Remove UNSPEC/v8plus_clear_high case.
5278 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
5279 of deferred case vectors we need to output.
5280 (sparc_defer_case_vector): Record a case vector.
5281 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
5282 sparc_output_deferred_case_vectors): New functions to output them.
5283 (sparc_emit_set_const32): New function to form 32-bit constants in
5284 registers when that requires more than one instruction.
5285 (safe_constDI, sparc_emit_set_const64_quick1,
5286 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5287 analyze_64bit_constant, const64_is_2insns,
5288 create_simple_focus_bits, sparc_emit_set_const64): New functions
5289 which do the same for 64-bit constants when arch64.
5290 (sparc_emit_set_symbolic_const64): New function to emit address
5291 loading for all code models on v9.
5292 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
5293 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
5294 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
5295 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
5296 inaccuracies in comments, add symbolic and text_segment operands
5297 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
5298 GENERAL_REGS in these cases as a temp REG is needed to load these
5299 addresses into a register properly.
5300 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
5302 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
5303 quads are guarenteed to have 16-byte alignment.
5304 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
5305 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
5306 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
5307 deferred case vector implementation.
5308 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
5309 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
5310 Generate "internal label - label" instead of "label - 1b".
5311 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
5312 (PREDICATE_CODES): Remove sparc_operand, move_operand,
5313 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
5315 (doublemove_string, output_block_move, output_fp_move_double,
5316 output_fp_move_quad, output_move_double, output_move_quad,
5317 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
5318 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
5319 (sparc_emit_set_const32, sparc_emit_set_const64,
5320 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
5321 mem_min_alignment, small_int_or_double): Add externs.
5322 * config/sparc/sparc.md: Document the many uses of UNSPEC and
5323 UNSPEC_VOLATILE in this backend.
5324 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
5325 unary to types which execute in it.
5326 (define_function_unit ieu_shift): Rename to ieu0.
5327 (define_function_unit ieu1): New, executes compare, call, and
5328 uncond_branch type insns.
5329 (define_function_units for type fdivs, fdivd, fsqrt): These
5330 execute in the fpu multiply unit not the adder on UltraSparc.
5331 (define_expand cmpdi): Disallow TARGET_V8PLUS.
5332 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
5333 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
5334 allows the arith_double_operand predicate and rHI constraint when
5336 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
5337 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
5338 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
5339 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
5340 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
5341 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
5342 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
5343 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
5344 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
5345 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
5346 sign_extendqihi2_insn, sign_extendqisi2_insn,
5347 sign_extendqidi2_insn, sign_extendhidi2_insn,
5348 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
5349 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
5350 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
5351 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
5352 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
5353 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
5354 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
5355 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
5356 smulsi3_highpart_v8plus, unnamed subreg mult,
5357 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
5358 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
5359 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
5360 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
5361 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
5362 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
5363 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
5364 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
5365 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
5366 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
5367 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
5368 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
5369 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
5370 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
5371 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
5372 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
5373 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
5374 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
5375 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
5376 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
5377 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
5378 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
5379 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
5380 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
5381 call_address_untyped_struct_value_sp32,
5382 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
5383 call_value_symbolic_sp32, call_value_address_sp64,
5384 call_value_symbolic_sp64, branch_sp32, branch_sp64,
5385 flush_register_windows, goto_handler_and_restore,
5386 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
5387 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
5388 return_addsi, return_di, return_adddi, return_sf, all call+jump
5389 peepholes, trap, unnamed trap insns): Prettify output strings.
5390 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
5391 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
5392 Likewise and force + implement splits for integer cases.
5393 (define_insn return_sf_no_fpu): Likewise and allow to match when
5394 no-fpu because of our subreg SFmode splits.
5395 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
5396 zero_extendqidi2_insn, zero_extendhidi2_insn,
5397 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
5398 input_operand for second operand.
5399 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
5400 reg_or_0_operand for operand 2 so new splits can use it.
5401 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
5402 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
5404 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
5405 CONST_DOUBLEs for operand 2.
5406 (define_insn move_label_di): Likewise and label distance
5407 optimization because it no longer works with new deferred case
5408 vector scheme. To be revisited.
5409 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
5410 and allow reg_or_0_operand and J constraint for second operand.
5411 (define_insn jump): Set branch predict taken on V9.
5412 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
5413 new deferred case vector scheme.
5414 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
5415 (define_insn negdi2_sp32): Force + implement splits.
5416 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
5417 one_cmplsi2_not_liveg0 respectively, and create expander of original
5418 names which emit special rtl for TARGET_LIVE_G0.
5419 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
5420 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
5421 gen_compare_reg, FAIL instead.
5422 (define_insn sgtu, sleu): Likewise and check gen_s*() return
5423 values when trying to reverse condition codes, if they FAIL then
5425 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
5426 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
5427 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
5428 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
5429 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
5430 set output string to # to indicate they are mandatory splits.
5431 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
5432 pic_sethi_di, move_pic_label_si): Remove.
5433 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
5434 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
5436 (define_expand movsi_pic_label_ref, define_insn
5437 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
5438 expander and insns to handle PIC label references and deferred
5440 (define_insn get_pc_via_rdpc): Comment out as it is no longer
5442 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
5443 Rewrite to not use emit_move_sequence, make use of new constant
5444 formation code, and new splits for all multi-insn cases.
5445 (define_insn movqi_insn): Remove sethi case, it can never happen.
5446 Use reg_or_zero_operand instead of const0_rtx explicit test,
5447 use input_operand instead of move_operand for source, and use
5448 general_operand now for dest.
5449 (define_insn movhi_insn): Similar but leave sethi case.
5450 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
5451 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
5452 movhi_lo_sum respectively, prettify output string.
5453 (define_insn movsi_zero_liveg0): New pattern to put zero into a
5454 register when needed on TARGET_LIVE_G0.
5455 (define_insn movsi_insn): Use general_operand and input_operand
5456 for dest and src respectively. Simplify applicability test.
5457 Prettify output strings, and add clr alternative for J
5459 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
5460 deprecated std and reg-reg DI moves): Remove and...
5461 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
5462 implementation which uses forced splits for all non-single insn
5464 (define_split DI move cases on !arch64): New splits to handle all
5465 situations of 64-bit double register DImode on 32bit, and
5466 unaligned registers and memory addresses for all subtargets.
5467 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
5469 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
5470 input_operand for dest and src respectively, prettify output
5472 (define_insn movdf_insn, movdf_no_e_insn, store_df,
5473 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
5475 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
5476 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
5477 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
5478 movtf_no_e_insn_sp64) Replace with new
5479 implementation which uses forced splits for all non-single insn
5481 (define_split DF move cases): New splits in similar vein to DI
5483 (define_insn sethi_di_medlow, sethi_di_medium_pic,
5484 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
5485 movdi_sp64_insn): Remove old v9 code model and constant loading
5487 (define_insn pic_lo_sum_di, pic_sethi_di,
5488 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
5489 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
5490 embmedany_sethi, embmedany_losum, embmedany_brsum,
5491 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
5492 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
5493 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
5494 scheme, using unspecs, secondary reloads, and one to one sparc
5495 insn to rtl insn mapping for better scheduling and code gen.
5496 (define_expand reload_indi, reload_outdi): Reload helpers for
5497 MEDANY and EMBMEDANY symbol address loading cases which require a
5499 (define_expand movsicc): Remove v8plus_regcmp cases.
5500 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
5501 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
5502 cmp_diqi_trunc_set): New patterns used by some of the new scc
5504 (define_insn xordi3_sp64_dbl): New pattern used for constant
5505 formation when crossing from 32-bit targets.
5506 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
5508 (define_insn addx, subx): Make visible and prettify.
5509 (define_insn adddi3_insn_sp32): Likewise and force split.
5510 (define_insn addx_extend, subx_extend, unnamed): New patterns for
5511 64bit scc split usage.
5512 (define_insn unnamed plusDI zero_extend, unnamed minusDI
5513 zero_extend, subdi3): Force and implement splits.
5515 * final.c (final_scan_insn): Don't output labels if target
5516 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
5519 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
5520 don't forget to walk inside SEQUENCESs too as these are what the
5521 delay slot scheduler will create.
5523 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
5525 * alpha.md (extxl+1,+2): New patterns to work around
5528 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
5530 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
5531 caused bad assembly code to be generated.
5533 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
5535 * netbsd.h: Fix typo.
5537 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
5539 * config.sub: Fix typo.
5541 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
5543 * invoke.texi (Environment Variables): Typo: Change "ascpects"
5545 (Running Protoize): Typo: Change "ther" into "other".
5547 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
5549 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
5550 * m68k/netbsd.h: Likewise.
5551 * ns32k/netbsd.h: Likewise.
5552 * sparc/netbsd.h: Likewise.
5554 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
5556 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
5557 * ginclude/va-clipper.h (va_list): Likewise.
5559 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
5561 * rs6000.c (rs6000_override_options): If big endian and -Os, use
5562 load/store multiple instructions unless user overrides.
5564 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
5566 * ns32k/netbsd.h: Fix typo.
5568 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
5570 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
5571 labels with .debugsym if no parallel insns.
5573 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
5575 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
5576 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
5578 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
5580 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
5581 (AR_FOR_TARGET): Define.
5583 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
5585 * dyn-string.h: New file.
5586 * dyn-string.c: Likewise.
5587 * Makefile.in (OBJS): Add dyn-string.o.
5588 (dwarf2out.o): Add dyn-string.h dependency.
5589 (dyn-string.o): List dependencies.
5590 * dwarf2out.c: Include dyn-string.h.
5591 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
5592 (addr_const_to_string): Take a dyn_string_t, not a char* as a
5593 prototype. Use dyn_string_append rather than strcat, throughout.
5594 (addr_to_string): Use dyn_string_t.
5596 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
5598 Function entry/exit profiling instrumentation:
5599 * expr.h (profile_function_entry_libfunc,
5600 profile_function_exit_libfunc): Declare new variables.
5601 * optabs.c: Define them here.
5602 (init_optabs): Initialize them.
5603 * tree.h (struct tree_decl): New flag
5604 no_instrument_function_entry_exit.
5605 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
5606 * c-decl.c (duplicate_decls): Merge it.
5607 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
5608 (init_attributes): Use it for "no_instrument_function".
5609 (decl_attributes): Handle it, for functions that have not yet been
5610 compiled. Set decl flag.
5611 * flags.h (flag_instrument_function_entry_exit): Declare new
5613 * toplev.c (flag_instrument_function_entry_exit): Define it here.
5614 (f_options): New option "instrument-functions".
5615 * function.h (struct function): New field instrument_entry_exit.
5616 * function.c (current_function_instrument_entry_exit): New
5618 (push_function_context_to, pop_function_context_from): Save and
5620 (expand_function_start): Set current_ variable, maybe emit return
5621 label and entry profile call.
5622 (expand_function_end): Maybe emit exit profile call.
5624 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
5626 * i386.md (movqi): When optimizing a load of (const_int 1) into a
5627 NON_QI_REG_P, pretend the register is SImode.
5629 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
5631 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
5632 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
5633 manufacturer id for ns32k.
5634 * configure: Regenerated.
5635 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
5636 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
5637 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
5638 * config/m68k/netbsd.h: Same.
5639 * config/ns32k/netbsd.h: Same.
5640 * config/sparc/netbsd.h: Same.
5642 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
5644 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
5645 or UNROLL_COMPLETELY loop that starts with a jump to its
5648 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
5650 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
5651 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
5652 (print_operand, case 'B'): Don't fall through.
5653 (print_operand, case 'S'): Correct mask begin/end computation.
5654 Use HOST_BITS_PER_WIDE_INT.
5655 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
5656 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
5657 * rs6000/aix41.h (CPP_PREDEFINES): Same.
5658 * rs6000/aix43.h (CPP_PREDEFINES): Same.
5660 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
5662 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
5663 constraint from second alternative.
5665 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5667 * configure.in: Fix --without/--disable cases for local-prefix,
5668 gxx-include-dir and checking.
5670 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5672 * configure.in (enable_haifa): Set by default for sparc64 too.
5675 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5677 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
5678 * i386/winnt.c (associated_type): New fn.
5679 (i386_pe_valid_type_attribute_p): New fn.
5680 (i386_pe_check_vtable_importexport): Remove.
5681 (i386_pe_dllexport_p): Use associated_type.
5682 (i386_pe_dllimport_p): Likewise.
5684 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
5685 * i386.c (i386_valid_type_attribute_p): Also accept
5686 attributes for METHOD_TYPEs.
5688 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
5690 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
5692 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
5694 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
5696 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
5697 them from generating a new base name for each occurence of
5700 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
5702 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
5704 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
5708 * cplus-dem.c (type_kind_t): New type.
5709 (demangle_template_value_parm): Add type_kind_t parameter. Rely
5710 on this paramter, rather than demangling the type again.
5711 (demangle_integral_value): Pass tk_integral.
5712 (demangle_template_: Pass the value returned from do_type.
5713 (do_type): Return a type_kind_t. Pass tk_integral to
5714 demangle_template_value_parm for array bounds.
5715 (demangle_fund_type): Likewise.
5717 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
5719 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
5722 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
5724 * pa.c (move_operand): Accept CONSTANT_P_RTX.
5726 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
5728 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
5730 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
5733 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
5735 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
5736 (DEBUGGER_ARG_OFFSET): Likewise.
5738 * mn10300.md (movsf): Remove last change. Not needed.
5740 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
5742 * c-lex.c (yylex): Fix boundary conditions in character literal and
5743 string literal loops.
5745 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
5747 * longlong.h (count_leading_zeros): Sparclite scan instruction was
5748 being invoked incorrectly.
5750 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
5751 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
5753 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
5754 * configure.in: Added i[34567]86-*-win32
5755 * config.sub: Ditto.
5756 * configure: Rebuilt.
5758 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
5760 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
5761 the frame pointer and compiling PIC code and reload has not completed.
5763 * i386.c (output_to_reg): Add code to emulate non-popping DImode
5766 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
5768 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
5770 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
5772 * Makefile.in (install-info): Only try to update the info
5773 directory file if it exists in the first place.
5775 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
5777 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
5779 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
5781 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
5782 CONST_DOUBLE source.
5784 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
5786 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
5787 strings as the insertion of USER_LABEL_PREFIX.
5788 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
5790 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
5793 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
5795 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
5796 already defined type.
5798 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
5800 * expr.c (check_max_integer_computation_mode): Allow conversions
5801 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
5802 (expand_expr): Likewise.
5804 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5806 * expr.c (expand_expr): Expand RETURN_EXPR.
5808 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
5810 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
5812 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
5814 * dwarf2out.c (output_aranges): Call stripattributes
5815 for TEXT_SECTION references.
5816 (output_line_info): Likewise.
5818 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5820 * profile.c (branch_prob): Call allocate_reg_info after outputting
5821 profile rtl in instrument_arcs.
5823 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
5825 * fixinc.irix (math.h): Install wrapper instead of copying.
5827 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5829 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
5830 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
5831 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
5832 lang_flag_0. Added documentation in the flag table.
5834 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
5836 * cccp.c (do_include): Fix vax c style include handling.
5838 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5840 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
5842 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
5844 * fold-const.c (non_lvalue): Don't deal with null pointer
5846 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5848 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
5850 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
5851 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
5852 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
5853 (u_short_cint_operand): Same.
5854 (reg_or_cint_operand): Same.
5855 (logical_operand): Same.
5856 (input_operand): Same.
5857 (reg_or_short_operand): Use u_short_cint_operand.
5859 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
5861 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
5862 but keep the insns and splits. Adjust so when the ultimate destination
5863 is memory, use cvtql.
5865 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
5867 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
5869 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
5871 * gcc.c (do_spec): Call "error" not "warning".
5873 * configure.in: Fix minor problems with gas feature detection code.
5874 * configure: Rebuilt.
5876 * gcc.c (do_spec): Issue a warning for '%[]' usage.
5879 * gcc.c: Delete %[spec] support.
5880 (do_spec_1, case '('): Likewise.
5881 (do_spec_1, case '['): Call error.
5883 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
5885 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
5886 (CPP_SUBTARGET_SPEC): Default to empty string.
5887 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
5888 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
5889 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
5890 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
5892 * alpha/linux.h (CPP_PREDEFINES): Tidy.
5893 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
5894 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
5895 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
5896 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
5897 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
5898 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
5899 * alpha/vxworks.h: Likewise.
5901 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
5903 * mips.md (reload_outsi): Added missing REGNO call.
5904 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
5906 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
5907 another match_operator and compare the codes.
5909 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
5911 * MIPS multiply pattern fixes:
5912 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
5913 Add union classes for HI, LO, or HILO plus general registers.
5914 (GENERATE_MADD): Deleted.
5915 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
5916 Add TARGET_MAD to condition.
5917 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
5918 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
5919 "*d" for accumulator, to give preference to LO initially but not
5922 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
5924 * configure.in (enable_c_mbchar): New configure option.
5925 (extra_cpp_objs): Always available now.
5927 * cexp.y (mbchar.h): #include it.
5928 (yylex): Handle Multibyte characters in character literals.
5930 * cccp.c (mbchar.h): #include it.
5931 (main): Set character set based on LANG environment variable.
5932 (rescan): Handle multibyte characters in comments.
5933 (skip_if_group): See above.
5934 (validate_else): See above.
5935 (skip_to_end_of_comment): See above.
5936 (macarg1): See above.
5937 (discard_comments): See above.
5938 (rescan): Handle multibyte characters in string and character literals.
5939 (collect_expansion): See above.
5940 (skip_quoted_string): See above.
5941 (macroexpand): See above.
5942 (macarg1): See above.
5943 (discard_comments): See above.
5944 (change_newlines): See above.
5946 * c-lex.c (mbchar.h): #include it.
5947 (GET_ENVIRONMENT): New macro.
5948 (init_lex): Set character set based on LANG environment variable.
5949 (yylex): Handle multibyte characters in character literals.
5950 (yylex): Handle multibyte characters in string literals.
5952 * Makefile.in (mbchar.o): New target.
5953 (cccp$(exeext)): @extra_cpp_objs@ is always available.
5954 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
5956 * mbchar.[ch]: New files for multibyte character handling.
5958 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5960 * jump.c (jump_optimize): When simplifying noop moves and
5961 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
5962 the PUSHes to rewrite in second loop as we did in the first.
5964 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5966 * cplus-dem.c (demangle_nested_args): Make function definition
5967 static to match the prototype.
5969 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
5971 * alloca.c: Respect USE_C_ALLOCA.
5972 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
5973 * gengenrtl.c (xmalloc): Likewise.
5975 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
5977 * loop.h (struct induction): Add no_const_addval.
5978 * loop.c (the_movables, reg_address_cost): New variables.
5979 (init_loop): Init reg_address_cost.
5980 (loop_optimize): Call end_alias_analysis.
5981 (scan_loop): Init the_movables.
5982 (record_giv): Init induction->no_const_addval.
5983 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
5984 [REG]: Rearrange loop search test to catch more cases.
5985 (general_induction_var): Return success not benefit; take an extra
5986 argument for that. Change all callers.
5987 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
5988 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
5989 [default]: Search the_movables for additional combinations.
5990 (sge_plus_constant, sge_plus): New functions.
5991 (express_from_1): New function.
5992 (express_from): Always define. Rewrite using express_from_1.
5993 (combine_givs_p): Handle more cases. Ignore address cost.
5994 (cmp_combine_givs_stats): New function.
5995 (combine_givs_used_once, combine_givs_benefit_from): New functions.
5996 (combine_givs): Rewrite to do best-fit combination.
5998 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
5999 (fold): Do a complete (A*C)+(B*C) association check.
6001 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
6003 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
6005 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
6007 * mn10300.c (MODES_TIEABLE_P): Fix typo.
6009 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
6011 * tree.c (valid_machine_attribute): Only create a new type variant if
6012 there is a decl to use it.
6014 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
6016 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
6019 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
6021 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
6024 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
6026 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
6027 Simplify tests for clearing an address register.
6028 (expand_prologue): Corresponding changes.
6030 * mn10300.md (movXX patterns): Make sure the destination is an
6031 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
6032 (logical patterns): Split into expanders + patterns
6033 (zero and sign extension patterns): Similarly.
6034 (shift patterns): Similarly.
6036 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
6038 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
6039 for the sequence, recording base values.
6041 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
6043 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
6045 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
6047 * gcc.c: Remove ANSI-C ism from --help code.
6049 * toplev.c: Support --help with USE_CPPLIB.
6051 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
6053 * configure.in: Rework gas feature code to work with symlink based
6056 * extend.texi: Clarify some issues related to local variables
6057 assigned to explicit registers.
6059 * mn10300.md (mulsi): Turn into expander + pattern.
6061 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
6064 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
6066 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
6068 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
6070 * version.c: Bump again to distinguish mainline tree from the
6073 See ChangeLog.0 for earlier changes.
6076 add-log-time-format: current-time-string