1 Thu Nov 5 03:29:19 1998 Richard Henderson <rth@cygnus.com>
3 * alpha.md (addsi3, subsi3): Expand to a DImode temporary so as
4 to expose this midpoint to CSE.
6 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
8 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
10 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
12 * configure.in: Bring over gcc2 change of Nov 19 1997.
14 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
16 * toplev.c (output_lang_identify): Make definition dependent on
17 ASM_IDENTIFY_LANGUAGE.
19 * print-rtl.c (spaces): Make static.
21 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
23 * extend.texi: Clarify proper uses for register clobbers in asms.
25 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
27 * recog.h (enum op_type): Define.
28 (constrain_operands): Adjust prototype.
29 (recog_op_type): Declare new variable.
30 * recog.c (recog_op_type): New variable.
31 (insn_invalid_p): Allow modifying an asm statement after reload.
32 (extract_insn): Set up recog_op_type.
33 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
34 Don't compute operand types, use recog_op_type.
35 Use the information computed by extract_insn instead of the previous
36 method of finding it by insn code number.
37 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
38 * reorg.c (fill_slots_from_thread): Likewise.
39 * reload1.c (reload_as_needed): Likewise.
40 (gen_reload): Likewise.
41 (inc_for_reload): Likewise.
42 (reload_cse_simplify_operands): Likewise.
43 Use the information computed by extract_insn instead of the previous
44 method of finding it by insn code number.
45 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
47 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
48 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
49 Use the information computed by extract_insn instead of the previous
50 method of finding it by insn code number.
51 * regmove.c (find_matches): Likewise. Change meaning of the return
52 value to be nonzero if the optimization can be performed, zero if
53 not. All callers changed.
54 Shorten some variable names to fix formatting problems.
55 (regmove_optimize): Shorten some variable names to fix formatting
57 Use the information computed by extract_insn instead of the previous
58 method of finding it by insn code number.
59 * regclass.c (scan_one_insn): Likewise.
60 (record_reg_classes): Don't compute operand types, use recog_op_type.
61 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
62 recog_constraints instead.
64 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
66 * rtl.h (flow2_completed): Declare.
67 * flow.c (flow2_completed): Definition.
68 * toplev.c (rest_of_compilation): Set and clear flow2_completed
71 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
73 * Makefile.in (libcpp.a): Ranlib libcpp.a
75 * cppulp.c (user_label_prefix): Initialize.
77 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
79 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
80 at a RETURN if current_function_sp_is_unchanging is set.
82 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
84 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
86 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
88 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
89 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
90 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
91 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
92 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
93 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
95 (LIB_SPEC): Handle -mno-cyginw option.
96 (LINK_SPEC): Handle -mdll.
98 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
100 * reload.c (find_reloads): Fix test for usage by other reload
101 to handle secondary reloads properly.
103 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
105 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
106 intermediate structure which has exactly the members provided by
107 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
108 static intermediate structure.
110 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
111 from the intermediate structure. Do the same analogous fix in
112 the case where ELIMINABLE_REGS is not defined.
114 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
116 * pa.h (SELECT_SECTION): Fix thinko.
118 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
120 * dwarf2out.c (output_call_frame_info): Comments on last change.
122 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
124 * arm.c (add_constant): When taking the address of an item in the
125 pool, get the mode of the item addressed.
127 * arm.c (final_prescan_insn case INSN): If an insn doesn't
128 contain a SET or a PARALLEL, don't consider it for conditional
131 Restore ABI compatibility for NetBSD.
132 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
134 (RETURN_IN_MEMORY): Likewise.
136 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
138 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
139 (m32r_output_block_move): Rewrite bytes < 4 handling.
141 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
143 * configure.in: Call AC_FUNC_VFORK.
145 * collect2.c: Define VFORK_STRING as a printable string for
146 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
147 defined, include vfork.h. If VMS is defined, define vfork()
148 appropriately. Remove vfork check on USG, we're using autoconf.
149 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
150 checking locally what string to pass.
151 (scan_prog_file): Likewise.
152 (scan_libraries): Likewise.
154 * gcc.c: Remove vfork check on USG, we're using autoconf.
155 Besides, no calls to vfork/fork occur in this file.
157 * protoize.c: Likewise.
159 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
161 * configure.in (DEFAULT_LINKER): renamed from LD
162 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
163 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
166 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
168 * BUGS: fix the regexp for `more' to find the appropriate node.
169 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
171 * BUGS: added link to the WWW FAQ
173 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
175 * version.c: Bump for snapshot.
177 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
179 * From Christian Gafton:
180 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
181 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
182 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
184 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
186 * c-common.c (c_get_alias_set): Allow all type-punning through
187 unions. Don't get confused about the type of a bit-field, despite
188 the antics of build_modify_expr.
190 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
192 * fixinc.sco: Paramaterize #include_next values.
193 * fixinc/fixinc.sco: Likewise.
195 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
197 * toplev.c (rest_of_compilation): No longer set reload_completed.
198 * reload1.c (reload): Set it here. Perform instruction splitting
199 after reload has completed if we will be running the scheduler
202 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
204 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
205 EH region if exceptions are enabled and we're performing cross
207 (find_cross_jump): Exit loop if the insns are in different EH regions.
209 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
211 * dwarf2out.c (output_call_frame_info): Use
212 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
214 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
216 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
217 * c-common.c (check_format_info): Don't check for the 'x'
218 format character twice, instead check for 'x' and 'X'
220 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
222 * configure.in (assembler features): Also make gas is configured if
223 we find it in the souce tree.
225 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
227 * i386.c (i386_comp_type_attributes): Compare whether the
228 attributes are defined, not their tree nodes.
230 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
232 * configure.in (gxx_include_dir): bitten by autoconf quoting
236 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
238 * configure.in: Ignore non-absolute value in $AS.
240 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
242 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
244 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
246 * configure.in (msdosdjgpp): Set exeext and target_alias.
248 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
250 * flow.c (XNMALLOC): New macro.
251 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
253 (add_edge, add_edge_to_label): New static functions.
254 (free_bb_memory): New function.
255 (flow_delete_insn): Delete function.
256 (basic_block_drops_in): Delete variable.
257 (find_basic_blocks): Allocate and initialize basic_block_head,
258 basic_block_succ. Don't allocate basic_block_drops_in.
259 Call free_bb_memory at the beginning.
260 (find_basic_blocks_1): Don't do multiple passes.
261 Delete code to compute basic_block_drops_in.
262 After calling make_edges, mark blocks reached by current block live.
263 Update test for unreachable live blocks.
264 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
266 Simplify to call add_edge_to_label when a LABEL_REF is found.
267 (make_edges): Simplify to call add_edge_to_label instead of
268 mark_label_ref most of the time.
269 Compute here whether control drops into the next block.
270 (delete_unreachable_blocks): Return void. All callers changed.
271 Delete unreachable blocks in reverse order.
272 After deleting all unreachable blocks, renumber the remaining ones
273 and update n_basic_blocks.
274 (delete_block): Speed up deletion a bit.
275 Don't set basic_block_drops_in for deleted blocks.
276 (free_basic_block_vars): Don't free basic_block_drops_in.
277 (life_analysis_1): Update to use new edge representation.
278 (dump_flow_info): Delete code to print basic block info; call
279 dump_bb_data instead.
280 (compute_preds_succs): Delete code to recompute basic_block_drops_in
281 and uid_block_number.
282 Simply copy the previously computed cfg.
283 (dump_bb_data): New arg LIVE_INFO. All callers changed.
284 Print register lifetime information if LIVE_INFO is nonzero.
285 * basic-block.h (dump_bb_data): Adjust prototype.
286 * gcse.c (gcse_main): Update call to dump_bb_data.
287 * rtl.h (free_bb_memory): Declare.
288 * toplev.c (rest_of_compilation): Call free_bb_memory.
290 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
291 (update_eliminable_offsets): Don't compute it.
292 (set_initial_elim_offsets): Don't initialize it.
293 Break out some code into set_initial_label_offsets so the rest of
294 this function can be called from reload_as_needed.
295 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
296 ELIMINABLE_REGS isn't.
297 (set_initial_label_offsets): New function, broken out of
298 set_initial_elim_offsets.
299 (set_offsets_for_label): New function, broken out of set_label_offsets
300 and reload_as_needed.
301 (reload): Call the two new functions.
302 (reload_as_needed): Call set_initial_elim_offsets instead of
303 duplicating the code. Likewise for set_offsets_for_label.
305 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
306 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
307 any hard reg, reg_reloaded_dead contains valid data.
309 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
311 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
312 "stdcall" and "cdecl" attributes.
314 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
316 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
317 handle deleted no-op moves of hard registers.
318 * haifa-sched.c (update_flow_info): Likewise.
320 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
322 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
323 of the sequences to reload the HILO register which do not actually
326 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
328 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
330 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
332 * except.c (emit_eh_context): Make the EH context register stay alive
333 at -O0 so stupid.c doesn't get confused.
335 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
337 * emit-rtl.c (try_split): Do not try to split a BARRIER.
339 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
340 Jeffrey A Law (law@cygnus.com)
342 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
343 (zero_extendsidi2): Use # in output template and handle completely by
345 (zero_extend splitters): New define_splits.
346 (ashiftrt_32): New pattern.
348 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
350 * tree.c (append_random_chars): New fn.
351 (get_file_function_name_long): Use it.
353 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
355 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
356 (LIBCPP_OBJS): New. Add cppulp.o.
357 (cppmain, fix-header): Depend on and use libcpp.a.
358 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
359 of the individual object files.
360 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
363 * cccp.c (user_label_prefix): New.
364 (main): Set it off -f*leading-underscore.
365 (special_symbol): Use it.
366 * cpplib.c (special_symbol): Likewise.
367 (cpp_handle_option): Handle -f*leading-underscore.
368 * cppulp.c: New file.
370 * output.h (user_label_prefix): Declare it.
371 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
372 * toplev.c (f_options, main): Handle -f*leading-underscore.
374 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
375 referencing USER_LABEL_PREFIX directly.
376 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
377 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
378 * final.c (asm_fprintf): Use user_label_prefix instead.
379 * arm/thumb.c (thumb_print_operand): Likewise.
381 * gcc.c (default_compilers): Pass -f*leading-underscore on to
382 cpp wherever appropriate.
384 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
386 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
387 specific compiler switches.
389 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
391 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
394 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
396 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
397 structure which has exactly the members provided by EXTRA_SPECS.
398 Xmalloc() the real `extra_specs', and initialize it from this
399 intermediate structure.
401 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
403 * mips.h (EXTRA_SPECS): Likewise.
405 * sparc.h (EXTRA_SPECS): Likewise.
407 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
409 * function.c (purge_addressof_1): Instead of aborting when a
410 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
411 work just put the ADDRESSOF on stack. Otherwise remember all such
412 successfull replacements, so that exactly the same replacements
413 can be made on the REG_NOTEs. Remove the special case for CALL
415 (purge_addressof_replacements): New variable.
416 (purge_addressof): Clear it at end.
418 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
420 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
421 (lang_init): Call check_newline always.
422 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
423 cpp_start_read, set yy_cur and yy_lim to read from
424 parse_in.token_buffer, so that we'll see the first #line
426 * cpplib.c (cpp_start_read): finclude the main input file
427 before processing -include/-imacros. Process -imacros and
428 -include separately, and handle -include by stacking a
429 buffer for the file in question as if it'd been #included.
430 * toplev.c (documented_lang_options) Recognize -H when
433 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
435 * cpplib.c: Merge do_once into do_pragma. Break file handling
436 code out of do_include.
437 Move append_include_chain, deps_output,
438 file_cleanup, redundant_include_p, import_hash,
439 lookup_import, add_import, read_filename_string, read_name_map,
440 open_include_file, finclude, safe_read to cppfiles.c.
441 Move prototypes for deps_output, append_include_chain,
442 finclude to cpplib.h. Move definition of struct
443 file_name_list there also.
445 * cppfiles.c: New file. Contains all the above functions
446 broken out of cpplib.c; also hack_vms_include_specification
447 from cccp.c and find_include_file, a new function broken out of
450 * Makefile.in (cppmain): Depend on cppfiles.o.
451 (fix-header): Likewise.
452 (cppfiles.o): New target.
453 * configure.in (--enable-c-cpplib): Add cppfiles.o to
454 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
456 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
458 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
459 if pending_types is non-zero.
460 (dwarfout_finish): Verify pending_types is zero before finishing.
462 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
464 * expr.c (convert_move): Use shifts to perform the move if a
465 suitable extend pattern cannot be found. Code written by
466 Richard Henderson <rth@cygnus.com>.
468 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
470 * regclass.c (renumber, regno_allocated): New static variables, moved
471 out of allocate_reg_info.
472 (allocate_reg_info): Move these two variables outside the function.
473 Move code to free memory into new function free_reg_info.
474 (free_reg_info): New function, broken out of allocate_reg_info.
475 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
476 * rtl.h (allocate_reg_info): Don't declare.
477 (free_reg_info): Declare.
479 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
481 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
483 * toplev.c (compile_file): Temporarily revert last change.
485 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
487 * c-typeck.c (convert_for_assignment): Parenthesize.
489 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
491 * reload1.c (delete_output_reload): Avoid ambigous else.
493 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
495 * toplev.c (compile_file): Call allocate_reg_info to free register
497 * rtl.h (allocate_reg_info): Declare.
499 * PROJECTS: Remove entry for local spilling.
501 * final.c (cleanup_subreg_operands): New function.
502 (final_scan_insn): Use it.
503 (alter_subreg): Clear the "used" field when we turn a SUBREG into
505 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
506 operands when reload has finished.
507 * reload.h (cleanup_subreg_operands): Declare..
508 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
509 reload. Handled in reload itself.
511 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
513 * reload1.c (verify_initial_offsets): New function.
514 (reload): Call it after reload_as_needed. Also verify that the frame
515 size stays constant during reload_as_needed.
516 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
518 * reload.h (struct insn_chain): Add need_operand_change element.
519 * reload1.c (new_insn_chain): Clear it.
520 (calculate_needs_all_insns): Set it; don't overload need_reload.
521 (reload_as_needed): Use it.
523 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
524 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
525 and reload_address_index_reg_class.
526 (find_reloads_address_1): Likewise.
527 * reload.h (reload_address_base_reg_class,
528 reload_address_index_reg_class): Don't declare.
529 * reload1.c (reg_old_renumber, pseudo_previous_regs,
530 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
531 (used_spill_regs): Now static.
532 (reload_address_base_reg_class, reload_address_index_reg_class,
533 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
534 basic_block_needs, max_needs, group_size, group_mode, max_groups,
535 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
538 (init_reload): Delete code to compute base/index reg classes.
539 (reload): Delete variable J.
540 Delete code to manage basic_block_needs.
541 Don't compute regs_explicitly_used.
542 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
543 pseudo_previous_regs.
544 Initialize bad_spill_regs_global.
545 Don't call order_regs_for_reload here.
546 Don't initialize spill_reg_order and n_spills.
547 Don't forbid explicitly used regs to be used for spill regs.
548 Change main loop to infinite loop, with explicit break statements.
549 Make SOMETHING_CHANGED variable local to that loop.
550 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
551 max_groups_insn, max_nongroups_insn, group_size, group_mode.
552 Make sure spilled_speudos is cleared before calling spill_hard_reg or
554 Don't call dump_needs.
555 Delete code to reset potential_reload_regs.
556 Delete code to terminate loop conditional on the global needs variables
557 showing no further needs.
558 (calculate_needs_all_insns): Return void. All callers changed.
559 Initialize somehing_needs_elimination here, not in reload.
560 Delete avoid_return_reg kludge.
561 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
563 Initialize the group_mode and group_size elements of the arg CHAIN.
564 Delete code to manage basic_block_needs.
565 Operate on elements of CHAIN instead of global variables.
566 Delete avoid_return_reg kludge.
567 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
569 Operate on elements of CHAIN instead of global variables.
570 Delete special SMALL_REGISTER_CLASSES code.
571 Delete spill_failure code; now in new_spill_reg.
572 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
574 Operate on elements of CHAIN instead of global variables.
575 (maybe_mark_pseudo_spilled): New static function.
576 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
578 Operate on elements of CHAIN instead of global variables.
579 Call order_regs_for_reload here, not in reload.
580 Initialize spill_reg_order and n_spills.
581 Simplify test whether an asm insn is involved.
582 Delete spill_failure code; now in new_spill_reg.
583 Call maybe_mark_pseudo_spilled for everything marked as live in
584 CHAIN. Merge CHAIN's used_spill_regs into the global variable
586 (dump_needs): Take CHAIN arg. No longer static, to prevent the
587 compiler from optimizing this function (now unused) away.
588 Operate on elements of CHAIN instead of global variables.
589 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
591 Operate on elements of CHAIN instead of global variables.
592 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
593 take CHAIN arg. All callers changed.
594 Operate on elements of CHAIN instead of global variables.
595 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
596 CHAIN, NONGROUP args. Return void. All callers changed.
597 Verify caller isn't trying to spill a pseudo.
598 Simplify test for illegal reg, just use bad_spill_regs.
599 Generate better error messages.
600 Operate on elements of CHAIN instead of global variables.
601 Mark spilled register in CHAIN's used_spill_regs element.
602 Don't call spill_hard_reg.
603 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
604 Mark spilled hard regs in bad_spill_regs_global.
605 Mark affected pseudos in spilled_pseudos, but don't spill them.
606 (ior_hard_reg_set): New static function.
607 (finish_spills): Return int. All callers changed.
608 Compute spill_reg_order, n_spills and spill_regs here. Also update
609 regs_ever_live for regs used as spills.
610 For every pseudo in spilled_pseudos, spill it and mark the previous
611 hard reg it had in pseudo_previous_regs. Compute which hard regs
612 arseudo): New static function.
613 (order_regs_for_reload): Take CHAIN arg. All callers changed.
614 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
615 hard registers explicitly used across the current insn into the set.
616 Compute hard_reg_n_uses taking only pseudos live across this insn
618 Tweak sorting of potential_reload_regs.
619 (compare_spill_regs): Delete function.
620 (reload_as_needed): Don't sort the spill_regs array, it's computed
621 in proper order in finish_spills.
622 Delete avoid_return_reg kludge.
623 Delete code to manage basic_block_needs.
624 (allocate_reload_reg): Minor speed/readability tweaks.
625 Operate on elements of CHAIN instead of global variables.
626 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
627 Delete avoid_return_reg kludge.
628 Initialize reload_reg_used from CHAIN's used_spill_regs element.
629 Delete unused label FAIL.
630 (reload_combine): Replce reload_address_index_reg_class with
632 Don't use used_spill_regs to determine information about lifetime of
635 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
637 * toplev.c (display_help): Ignore empty target specific
638 options, and if -W is also specified on the command line then
639 display undocumented options.
641 * config/arm/arm.c: Updated with changes in devo sources.
642 * config/arm/arm.h: Updated with changes in devo sources.
643 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
644 * config/arm/lib1thumb.asm: Add ELF support.
646 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
648 * collect2.c (aix64_flag): New variable.
649 (main, case 'b'): Parse it.
650 (GCC_CHECK_HDR): object magic number must match mode.
651 (scan_prog_file): Only check for shared object if valid header.
652 Print debugging if header/mode mismatch.
654 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
656 Added support for arm-elf-linux configuration, submitted by Philip
657 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
658 code developed by Catherine Moore <clm@cygnus.com>. The following
661 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
664 * configure: Regenerated.
666 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
667 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
668 definitions conditional on their not having been already defined.
670 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
671 and .type directives, and add "(PLT)" qualification to function
674 * config/arm/linux.h: Deleted. This file is now superceeded by
675 either linux-elf.h or linux-aout.h.
677 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
678 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
680 Move definitions from old linux.h file here.
682 * config/arm/elf.h: New file. Generic ARM/ELF support.
684 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
686 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
688 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
689 using the 26bit APCS.
691 * config/arm/unknown-elf.h: New file. Support for OS'es other
694 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
697 * config/arm/coff.h: Include aout.h for basic assembler macros.
698 Add support for -mstructure_size_boundary=<n> command line option.
700 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
701 command line option. Make macro definitions conditional on their
702 not having been already defined.
704 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
708 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
710 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
711 has been changed to not include a newline. Use this macro instead.
712 (output_enumeral_list, const_value_attribute, name_attribute,
713 comp_dir_attribute, prototyped_attribute, producer_attribute,
714 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
715 dwarfout_file_scope_decl, generate_new_sfname_entry,
716 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
717 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
719 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
721 * combine.c (subst): Process the inputs to a parallel asm_operands
724 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
726 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
728 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
730 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
732 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
734 * version.c: Bump for snapshot.
736 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
738 * stmt.c (expand_fixup): Set fixup->before_jump to a
739 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
741 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
743 * Makefile.in (recog.o): Depend on toplev.h.
744 (insn-emit.o): Depend on recog.h.
745 (insn-peep.o): Depend on recog.h and insn-config.h.
747 * combine.c (simplify_set): Remove unused variable `scratches'.
749 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
750 and `idx' in macro conditional controlling their use.
752 * genemit.c (main): Make the generated output file include
753 recog.h. Don't have it declare `insn_operand_constraint', since
754 we get it from recog.h.
756 * genpeep.c (main): Make the generated output file include
757 insn-config.h and recog.h.
759 * recog.c: Include toplev.h.
760 (extract_insn): Remove unused variable `p'.
762 * regclass.c (fix_register): Add missing braces around initializer
764 (allocate_reg_info): Move variable `i' into the scope where it is
765 used. Change its type to `size_t'.
767 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
769 * reload.c (push_reload): When merging reloads, make sure
770 that reload_in_reg and reload_in are from the same reload in
773 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
775 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
776 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
778 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
780 * loop.c (loop_has_tablejump): New variable.
781 (prescan_loop): Scan for it.
782 (insert_bct): Replace explicit scan with use of it.
783 * regclass.c (regclass): Restore loop variable j.
784 (record_reg_classes): Deterine op_types modifiers and initialize
785 classes[i] before matching constraints. Handle matching
788 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
790 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
793 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
795 * mips.h (EXTRA_SPECS): Add missing initializers.
797 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
799 * sparc.h (EXTRA_SPECS): Add missing initializers.
800 (sparc_defer_case_vector): Provide a prototype.
802 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
803 comparing it to the result of a pointer subtraction.
805 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
807 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
808 the argument to (unsigned char).
810 * alpha.h (EXTRA_SPECS): Add missing initializers.
811 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
814 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
816 * flow.c (life_analysis_1): Enable "rescan" code after reload.
817 (propagate_block): Delete dead code after reload.
819 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
820 back Oct 15, 1998 change.
821 * haifa-sched.c (update_flow_info): Likewise.
822 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
824 * mn10200.md (truncated shift): Accept constant inputs too.
826 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
828 * machmode.h (mode_mask_array): No longer const.
829 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
831 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
833 * frame.c: Somewhat explain `FDE'.
834 Suggested by Brendan Kehoe
836 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
838 * expr.c (pending_chain): Move up.
839 (save_expr_status): Do save pending_chain.
840 (restore_expr_status): And restore it.
841 * function.h (struct function): Add pending_chain.
843 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
845 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
846 did not match the code.
848 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
850 * regclass.c (regclass): Break out some code into new function
851 scan_one_insn, and into regclass_init.
852 (init_cost): New static variable, moved out of regclass.
853 (regclass_init): Initialize it here, not in .
854 (scan_one_insn): New static function, broken out of regclass.
855 * recog.c (apply_change_group): Break out some code into new
856 function insn_invalid_p.
857 (insn_invalid_p): New static fn, broken out of apply_change_group.
859 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
861 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
862 reg_reloaded_contents matches incremented pseudo.
864 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
866 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
868 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
869 addressing modes with side effects. These are currently
870 placeholders for the C4x target.
872 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
874 * loop.c (express_from): Make sure that when generating a PLUS of
875 a PLUS, any constant expression appears on the outermost PLUS.
877 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
879 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
880 works if "$(srcdir)" != ".".
882 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
884 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
885 existing SUBREG if we can, otherwise abort.
887 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
889 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
890 `restrict' is applied to a non-pointer variable.
892 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
894 * invoke.texi: Document -flang-isoc9x.
896 * Makefile.in (OBJS): Add splay-tree.o.
897 (c-common.o): Depend on rtl.h.
898 (splay-tree.o): List dependencies and provide build rule.
900 * rtl.h (record_alias_subset): New function.
901 * alias.c: Include splay-tree.h.
902 (alias_set_entry): New type.
903 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
904 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
905 (mems_in_disjoin_alias_sets_p): New function.
906 (alias_set_compare): Likewise.
907 (insert_subset_children): Likewise.
908 (get_alias_set_entry): Likewise.
910 * tree.h (TYPE_RESTRICT): New macro.
911 (TYPE_UNQUALIFIED): New manifest constant.
912 (TYPE_QUAL_CONST): Likewise
913 (TYPE_QUAL_VOLATILE): Likewise.
914 (TYPE_QUAL_RESTRICT): Likewise.
915 (tree_type): Add restrict_flag. Reduce count of free bits.
916 (DECL_POINTER_ALIAS_SET): New macro.
917 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
918 (tree_decl): Add pointer_alias_set.
919 (build_qualified_type): New function.
920 (build_type_variant): Define in terms of build_qualified_type.
921 * tree.c (set_type_quals): New function.
922 (make_node): Initializae DECL_POINTER_ALIAS_SET.
923 (build_type_attribute_variant): Use build_qualified_type and
925 (build_type_variant): Rename, and modify, to become...
926 (build_qualified_type): New function.
927 (build_complex_type): Use set_type_quals.
929 * c-tree.h (C_TYPE_OBJECT_P): New macro.
930 (C_TYPE_FUNCTION_P): Likewise.
931 (C_TYPE_INCOMPLETE_P): Likewise.
932 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
933 (c_apply_type_quals_to_decl): New function.
934 (c_build_qualified_type): New function.
935 (c_build_type_variant): Define in terms of c_build_qualified_type.
936 (flag_isoc9x): Declare.
937 * c-typeck.c (qualify_type): Use c_build_qualified_type.
938 (common_type): Change to use TYPE_QUALS.
939 (comptypes): Likewise.
940 (convert_for_assignment): Likewise.
941 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
942 * c-decl.c (flag_isoc9x): Define.
943 (c_decode_option): Handle -flang-isoc9x.
944 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
945 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
946 * c-lex.c (init_lex): Deal with restrict.
947 (init_lex): Don't treat restrict as a reserved word in
948 -traditional mode, or without -flang-isoc9x.
949 * c-lex.h (rid): Add RID_RESTRICT.
950 * c-parse.gperf (restrict, __restrict, __restrict__): Make
951 equivalent to RID_RESTRICT.
952 * c-parse.in (TYPE_QUAL): Update comment.
953 * c-common.c: Include rtl.h.
954 (c_find_base_decl): New function.
955 (c_build_type_variant): Rename, and modify, to become ...
956 (c_build_qualified_type): New function.
957 (c_apply_type_quals_to_decl): Likewise.
958 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
959 a particular alias set for the reference.
960 * toplev.c (documented_lang_options): Add -flang-isoc9x.
962 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
964 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
965 command line switches.
967 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
969 * reload.c (loc_mentioned_in_p): Add missing braces to bind
972 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
974 * gcc.c (option_map): Added --classpath and --CLASSPATH.
976 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
978 * regclass.c (fix_register): Add error message.
979 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
982 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
984 * c-decl.c (warn_missing_noreturn): New global variable.
985 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
986 (finish_function): Implement missing noreturn warning.
988 * c-tree.h (warn_missing_noreturn): Declare extern.
990 * invoke.texi: Document new flags.
992 * toplev.c (documented_lang_options): Add description.
994 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
996 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
997 loop optimization stable for the C4x.
998 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
999 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
1000 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
1002 (c4x_address_conflict): Be more paranoid when packing a volatile
1003 memref in a parallel load/store.
1005 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1007 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
1008 repeat_block_filler): Deleted.
1009 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
1010 Condition code not set if destination register from 'c' class.
1011 (*subbqi3_carry_clobber): Fix typo.
1013 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1015 * reorg.c (steal_delay_list_from_target) Check for insns that
1016 modify the condition codes and effect the direction of the jump
1019 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1021 * function.c (purge_addressof_1): Replace call to
1022 emit_insns_before() with emit_insn_before().
1024 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
1026 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
1028 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1030 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
1032 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1034 * gcse.c (compute_hash_table): Correctly identify hard regs which are
1035 clobbered across calls.
1037 * loop.c (scan_loop): Be more selective about what invariants are
1038 moved out of a loop.
1040 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
1042 * version.c: Bump for snapshot.
1044 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1046 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
1047 static eh_context structure.
1049 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1051 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
1053 (try_combine): Don't update max_scratch.
1054 * flow.c (max_scratch, num_scratch): Delete variables.
1055 (life_analysis_1): Don't initialize max_scratch.
1056 (propagate_block): Don't update max_scratch.
1057 (mark_set_1): Don't increment num_scratch.
1058 * regs.h (max_scratch): Delete declaration.
1060 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
1062 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
1063 is nonzero. This is temporary!
1065 * sched.c (update_flow_info): Handle death notes made invalid by
1066 instruction splitting. Partially reverts Oct 15, 1998 patch.
1067 * haifa-sched.c (update_flow_info): Likewise.
1069 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
1071 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
1072 if it has a nonzero DECL_INITIAL.
1074 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1076 * Makefile.in (flow.o): Depend on recog.h.
1078 * cpplib.h (directive_table): Add missing initializiers.
1079 (finclude): Change type of variable `bsize' to size_t.
1081 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
1083 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
1085 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
1086 `int' when comparing against one.
1087 (cpp_file_line_for_message): Mark parameter `pfile' with
1089 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
1091 * flow.c: Include recog.h.
1092 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
1094 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
1095 `f' with ATTRIBUTE_UNUSED.
1096 (reposition_prologue_and_epilogue_notes): Likewise.
1098 * genopinit.c (gen_insn): Cast argument of ctype functions to
1101 * haifa-sched.c: Include recog.h.
1102 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
1103 comparing against one.
1105 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
1107 * mips-tfile.c (parse_end): Cast the argument of ctype function to
1109 (parse_ent): Likewise.
1110 (parse_input): Likewise.
1112 * optabs.c (init_libfuncs): Likewise.
1114 * protoize.c (find_rightmost_formals_list): Likewise.
1116 * recog.h (const_double_operand): Fix typo in prototype.
1118 * tlink.c (scan_linker_output): Cast the argument of ctype
1119 function to `unsigned char'.
1121 * toplev.c (check_lang_option): Cast the result of `strlen' to
1122 `int' when comparing against one.
1124 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1126 * gcse.c (dump_cuid_table): Correct typo.
1128 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
1130 * toplev.c (display_help): Prepend '-m' to target specific
1132 (check_lang_option): Ignore text after end of first word of a
1133 language specific option.
1135 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1137 * reload1.c (reg_used_by_pseudo): New static variable.
1138 (choose_reload_regs): Initialize it.
1139 Use it instead of testing spill_reg_order to determine whether a
1140 pseudo is live in a hard register across the current insn.
1141 Fix a typo in a reference to reload_reg_rtx.
1143 * flow.c (propagate_block): Replace code that computes and uses
1144 regs_sometimes_live with simpler code that just walks the set of
1145 currently live registers.
1147 * Makefile.in (insn-extract.o): Fix dependencies.
1148 * genextract.c (main): Generate includes for insn-config.h and
1150 Delete generation of declarations which are now in recog.h.
1151 * genrecog.c (main): Delete generation of definitions which are
1153 * local-alloc.c (block_alloc): Use extract_insn and the variables
1154 it sets up instead of looking up values by insn_code.
1155 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
1156 recog_dup_num): Define here instead of generating the definition in
1158 (recog_n_operands, recog_n_dups, recog_n_alternatives,
1159 recog_operand_mode, recog_constraints, recog_operand_address_p):
1161 (extract_insn): New function.
1162 * recog.h (extract_insn): Declare function.
1163 (which_alternative, recog_n_operands, recog_n_dups,
1164 recog_n_alternatives, recog_operand_mode, recog_constraints,
1165 recog_operand_address_p): Declare variables.
1166 * regclass.c (n_occurrences): New static function.
1167 * reload.c (n_occurrences): Delete function.
1168 (find_reloads): Use extract_insn.
1169 * reload.h (n_occurrences): Delete declaration.
1171 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
1173 * reload1.c (reload_as_needed): Fix test for when to call
1174 update_eliminable_offsets.
1176 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1178 Fix consistency problems with reg_equiv_{mem,address};
1179 Improve reload inheritance;
1181 * reload.c (reload_out_reg): New variable.
1182 (loc_mentioned_in_p, remove_address_replacements): New functions.
1183 (remove_replacements): Deleted.
1184 (push_reload): Set reload_out_reg[i].
1185 When merging, also set reload_{in,out}_reg[i], and remove
1186 duplicate address reloads.
1187 (combine_reloads): Copy reload_out_reg[i].
1188 (find_reloads): Do make_memloc substitution also when
1189 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1191 Include *recog_operand_loc in commutativity operand changes.
1192 Generate optional output reloads.
1193 Delete reference to n_memlocs. Don't set *recog_operand_loc before
1194 processing operands. Call make_memloc in reg_equiv_address code.
1195 Set *recog_operand_loc only after processing operands, and only
1196 if replace is true. Return a value.
1197 When changing address reload types for operands that didn't get
1198 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
1199 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
1200 Don't emit USEs for pseudo SUBREGs when not replacing.
1201 (find_reloads_address): Do make_memloc substitution also when
1202 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1204 (find_reloads_toplev): Likewise.
1205 Call make_memloc in reg_equiv_address code.
1206 (debug_reload_to_stream): Add code to output reload_out_reg.
1207 (make_memloc): Delete local variable i, ifdefed out code, and
1208 references to memlocs and n_memlocs.
1209 (memlocs, n_memlocs): Delete.
1210 (push_secondary_reload): Clear reload_out_reg.
1211 (find_reloads_address_1): Provide memrefloc argument to all calls
1212 to find_reloads_address.
1213 In AUTO_INC code, handle non-directly addressable equivalences properly.
1214 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
1215 (find_reloads): Add return type.
1216 (remove_address_replacements, deallocate_reload_reg): Declare.
1217 * reload1.c (num_not_at_initial_offset): No longer static.
1218 (delete_address_reloads, delete_address_reloads_1): Likewise.
1219 (deallocate_reload_reg): New function.
1220 (spill_reg_stored_to): New array.
1221 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
1222 (eliminate_regs_in_insn): Move assignments of previous_offset and
1223 max_offset fields, and recalculation of num_not_at_initial_offset
1224 into new static function:
1225 (update_eliminable_offsets) .
1226 (reload_as_needed): Call update_eliminable_offsetss after calling
1228 Call forget_old_reloads_1 with contents of reloaded auto_inc
1229 expressions if the actual addressing can't be changed to match the
1231 (choose_reload_regs): For inheritance, replace
1232 reload_reg_free_before_p test with reload_reg_used_at_all test, and
1233 remove stand-alone reload_reg_used_at_all test.
1234 Use reload_out_reg to determine which reload regs have output reloads.
1235 Treat reload_override_in more similar to inherited reloads.
1236 Handle (subreg (reg... for inheritance.
1237 For flag_expensive_optimizations, add an extra pass to remove
1238 unnecessary reloads from known working inheritance.
1239 Delete obsolete code for pseudos replaced with MEMs.
1240 Handle inheritance from auto_inc expressions.
1241 (emit_reload_insns): If reload_in is a MEM, set OLD to
1243 Don't reload directly from oldequiv; if it's a pseudo with a
1244 stack slot, use reload_in[j].
1245 Check that reload_in_reg[j] is a MEM before replacing reload_in
1246 from reg_reloaded_contents.
1247 Include non-spill registers in reload inheritance processing.
1248 Also try to use reload_out_reg to set spill_reg_store /
1249 reg_last_reload_reg.
1250 In code to set new_spill_reg_store, use single_set to find out if
1251 there is a single set.
1252 Add code that allows to delete optional output reloads.
1253 Add code to allow deletion of output reloads that use no spill reg.
1254 At the end, set reload_override_in to oldequiv.
1255 Also call delete_output_reload if reload_out_reg is equal to old
1257 Add code to call delete_output_reload for stores with no matching load.
1258 Set / use spill_reg_stored_to.
1259 Handle case where secondary output reload uses a temporary, but
1260 actual store isn't found.
1261 When looking for a store of a value not loaded in order to call
1262 delete_output_reload, count_occurences should return 0 for no
1263 loads; but discount inherited input reloadill_reg_stored_to.
1264 Do checks for extra uses of REG. Changed all
1266 Use delete_address_reloads.
1267 (reload): Take return value of find_reloads into account.
1268 If a no-op set needs more than one reload, delete it.
1269 (reload_reg_free_before_p): RELOAD_FOR_INPUT
1270 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
1271 for the same operand.
1272 (clear_reload_reg_in_use): Check for other reloads that keep a
1274 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
1275 RELOAD_FOR_OPADDR_ADDR.
1276 Take into account when an address address reload is only needed
1277 for the address reload we are considering.
1278 (count_occurrences): Use rtx_equal_p for MEMs.
1279 (inc_for_reload): Return instruction that stores into RELOADREG.
1280 New argument two, IN, and rtx. Changed all callers.
1281 (calculate_needs_all_insns, reload_as_needed):
1282 Don't clear after_call for a CLOBBER.
1283 Keep track of how many hard registers need to be copied from
1284 after_call, and don't clear after_call before we have seen
1285 that much copies, or we see a different instruction.
1287 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
1289 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
1290 after reload has completed.
1292 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
1294 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
1295 a macro name and the next token with a single blank if that whitespace
1296 is in a macro buffer and the next token is not '('.
1298 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
1300 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
1302 (skip_if_group): Ditto.
1303 (skip_to_end_of_comment): Ditto.
1305 (discard_comments): Ditto.
1306 (change_newlines): Ditto.
1308 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
1310 * c-lex.c (yylex): Fix unaligned access of wchar_t.
1312 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
1314 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
1315 (TARGET_OPTIONS): Add --help documentation.
1317 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1319 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
1321 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
1323 * fixinc/* Moved in from ../contrib directory in preparation
1324 for integrating it into the normal build process. In particular,
1325 fixinc/Makefile.in must be config-ed into the build directory
1326 as fixinc/Makefile. Proposed patches to ./Makefile.in and
1327 ./configure.in will be "in the mail" momentarily.
1329 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
1331 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
1332 accidently walk into the free list. Comment how that can happen.
1333 (invalidate): Fix indentation.
1335 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1336 Jeffrey A Law (law@cygnus.com)
1338 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
1339 reload. Never perform rescans of the insn chain after reload.
1340 (propagate_block): Do not delete insn or create new autoinc addressing
1343 * jump.c (jump_optimize): Unconditionally use the code that was
1344 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
1345 * reload1.c (reload): When reloading is finished, delete all
1346 REG_DEAD and REG_UNUSED notes.
1347 (emit_reload_insns): Delete all code that was conditional on
1348 PRESERVE_DEATH_INFO_REGNO_P.
1349 (no_longer_dead_regs): Delete variable.
1350 (reload_cse_delete_death_notes): Delete function.
1351 (reload_cse_no_longer_dead): Delete function.
1352 (reload_cse_regs_1): Delete all code to handle deletion of death
1354 (reload_cse_noop_set_p): Likewise.
1355 (reload_cse_simplify_set): Likewise.
1356 (reload_cse_simplify_operands): Likewise.
1357 (reload_cse_move2add): Likewise.
1358 * reorg.c (used_spill_regs): Delete declaration.
1359 (max_label_num_after_reload): Delete declaration.
1360 (find_dead_or_set_registers): Don't assume that spill regs are
1361 dead at a CODE_LABEL.
1362 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
1364 * sched.c (sched_analyze_insn): Likewise.
1365 (update_flow_info): Likewise.
1366 * haifa-sched.c (sched_analyze_insn): Likewise.
1367 (update_flow_info): Likewise.
1368 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
1369 * toplev.c (max_label_num_after_reload): Delete variable.
1370 (rest_of_compilation): Don't set max_label_num_after_reload.
1371 Call life_analysis after reload_cse_regs if optimizing.
1372 * config/gmicro/gmicro.h: Delete comment referring to
1373 PRESERVE_DEATH_INFO_REGNO_P.
1374 * config/i386/i386.h: Likewise.
1375 * config/m88k/m88k.h: Likewise.
1376 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
1377 * config/sh/sh.h: Likewise.
1379 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
1381 * loop.c (strength_reduce): Restore marking bct_p as
1383 * rs6000.c (optimization_options): Change #ifdef HAIFA to
1384 HAVE_decrement_and_branch_on_count.
1385 (small_data_operand): Remove TARGET_ELF condition for marking
1386 parameters ATTRIBUTE_UNUSED.
1388 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
1390 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
1391 (SELECT_SECTION): Resync with svr4.h.
1393 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
1395 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
1398 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
1400 * c-pragma.c (handle_pragma_token): Test for null tree before
1401 dereferencing TREE_CODE.
1403 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1405 * config/c4x/c4x.c: Convert to use GEN_INT.
1406 (c4x_parallel_process): Rework to handle new repeat loop structure.
1408 * config/c4x/c4x.md: Convert to use GEN_INT.
1409 (rptb_end): Convert to use GE test. Replace uses with clobbers.
1410 (decrement_and_branch_on_count): Likewise.
1412 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
1413 loop.c has the desired functionality.
1414 (rc_reg_operand): New prototype.
1416 * config/c4x/t-c4x: Can now build all front ends.
1418 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
1420 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
1422 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
1424 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
1425 * config/t-rtems: Do not install assert.h -- use newlib's.
1427 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1429 * combine.c (combine_instructions): When finished, call init_recog.
1430 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
1432 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
1434 * toplev.c: If flag_syntax_only, don't open or write assembler file.
1436 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1438 * cppalloc.c (memory_full): Mark function prototype with
1441 * demangle.h (collect_exit): Likewise.
1443 * fix-header.c (v_fatal, fatal): Likewise.
1445 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
1448 * gcov.c (print_usage): Likewise.
1450 * genattr.c (fatal, fancy_abort): Likewise.
1452 * genattrtab.c (fatal, fancy_abort): Likewise.
1454 * gencodes.c (fatal, fancy_abort): Likewise.
1456 * genconfig.c (fatal, fancy_abort): Likewise.
1458 * genemit.c (fatal, fancy_abort): Likewise.
1460 * genextract.c (fatal, fancy_abort): Likewise.
1462 * genflags.c (fatal, fancy_abort): Likewise.
1464 * genopinit.c (fatal, fancy_abort): Likewise.
1466 * genoutput.c (fatal, fancy_abort): Likewise.
1468 * genpeep.c (fatal, fancy_abort): Likewise.
1470 * genrecog.c (fatal, fancy_abort): Likewise.
1472 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
1473 __sjpopnthrow, __throw): Likewise.
1475 * objc/objc-act.c (objc_fatal): Likewise.
1477 * protoize.c (usage, aux_info_corrupted,
1478 declare_source_confusing): Likewise.
1480 * rtl.c (dump_and_abort): Likewise.
1482 * rtl.h (sets_cc0_p): Likewise.
1484 * toplev.c (float_signal, pipe_closed): Likewise.
1486 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1488 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
1489 when generating the decision tree for the general case.
1491 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
1492 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
1494 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1496 * Makefile.in (sched.o): Depend on recog.h.
1498 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
1499 (unsigned) when comparing against one.
1500 (find_base_value): Likewise.
1501 (record_base_value): Cast variable `regno' to (unsigned) when
1502 comparing against one. Cast the result of REGNO() macro to
1503 (unsigned) when comparing against one.
1504 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
1506 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
1507 variable where an unsigned index is needed.
1509 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
1510 before comparing against one.
1512 * collect2.c: Add prototypes for functions `error', `fatal' and
1513 `fatal_perror'. Make these functions take variable arguments
1514 instead of faking it with a fixed number of args.
1515 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
1518 * combine.c (can_combine_p): Mark parameter `pred' with
1520 (find_split_point): Cast variable `src' to (unsigned
1521 HOST_WIDE_INT) when comparing against one.
1522 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
1523 (simplify_logical): Likewise.
1524 (force_to_mode): Cast result of INTVAL() macro to (unsigned
1525 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
1526 HOST_WIDE_INT) in shift.
1527 (simplify_and_const_int): Cast result of INTVAL() macro to
1528 `unsigned HOST_WIDE_INT' when comparing against one.
1529 (merge_outer_ops): Cast variable const0 to `unsigned
1530 HOST_WIDE_INT' when comparing against the result of
1531 GET_MODE_MASK() macro.
1532 (simplify_comparison): Likewise for variable `c0'. Cast variable
1533 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
1534 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
1535 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
1536 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
1537 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
1538 comparing against one.
1539 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
1541 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
1542 macro to `unsigned HOST_WIDE_INT' when comparing against one.
1543 (output_block_move): Cast `sizeof' expression to (int) when
1544 comparing against one.
1545 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
1547 (save_restore_insns): Cast `base_offset' to `long' to match format
1548 specifier in fprintf.
1550 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
1551 to `enum machine_mode'.
1553 * flow.c (life_analysis_1): Remove unused variable `insn'.
1555 * gcc.c (translate_options): Move variables `j' and `k' into the
1556 scope in which they are used. Change their types to `size_t'.
1557 (set_spec): Cast the argument of ctype macro to `unsigned char'.
1558 (read_specs): Likewise.
1559 (process_command): Cast `sizeof' to (int) when comparing against one.
1560 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
1561 (handle_braces): Cast both sides of `==' expression to `long' to
1562 ensure sign matching.
1563 (main): Cast variable `i' to `int' when comparing against one.
1565 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
1566 int to size_t. Cast variable `i' to size_t when comparing against
1569 * genattrtab.c (convert_set_attr_alternative): Remove unused
1570 parameter `insn_code'. All callers changed.
1571 (convert_set_attr): Likewise.
1573 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
1574 size_t when comparing against one. Likewise for variable `len'.
1576 * global.c (global_alloc): Cast variable `max_regno' to size_t
1577 when comparing against one. Likewise for variable `max_allocno'.
1579 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
1581 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
1582 `set' with ATTRIBUTE_UNUSED.
1583 (find_free_reg): Cast `sizeof' expression to (int) when comparing
1586 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
1587 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
1588 (get_condition): Cast variable `const_val' to `unsigned
1589 HOST_WIDE_INT' when comparing against one. Cast unsigned
1590 expression to HOST_WIDE_INT when comparing against one.
1591 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
1592 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
1593 `unsigned' when comparing against one.
1595 * protoize.c (is_id_char): Change type of parameter `ch' to
1597 (munge_compile_params): Cast argument of ctype macro to (const
1599 (process_aux_info_file): Cast variable `aux_info_size' to int when
1600 comparing against one.
1601 (forward_to_next_token_char): Cast argument of ctype macro to
1602 `const unsigned char'.
1603 (edit_formals_lists): Likewise.
1604 (find_rightmost_formals_list): Likewise.
1605 (add_local_decl): Likewise.
1606 (add_global_decls): Likewise.
1607 (edit_fn_definition): Likewise.
1608 (do_cleaning): Likewise.
1609 (scan_for_missed_items): Likewise.
1610 (edit_file): Cast variable `orig_size' to (int) when comparing
1612 (main): Cast argument of ctype macro to `const unsigned char'.
1614 * recog.c (const_int_operand): Mark parameter `mode' with
1617 * regclass.c (record_reg_classes): Change type of variable `c' to
1618 `unsigned char'. Cast `char' array index to `unsigned char'.
1620 * reload.c (push_secondary_reload): Cast argument to
1621 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
1623 * reload1.c (calculate_needs): Cast `char' array index to
1625 (set_label_offsets): Change type of variable `i' to unsigned int.
1626 Cast result of XVECLEN() macro to unsigned when comparing against
1628 (mark_not_eliminable): Change type of variable `i' to unsigned.
1629 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
1630 when comparing against one.
1631 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
1632 comparing against one.
1633 (choose_reload_regs): Hide unused label `fail'.
1634 (reload_cse_simplify_operands): Cast `char' array index to
1636 (reload_combine_note_store): Mark parameter `set' with
1637 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
1639 (reload_cse_move2add): Remove unused variable `src2'.
1641 * sched.c: Include recog.h.
1642 (sched_note_set): Remove unused parameter `b'. All callers
1644 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
1645 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
1646 when comparing against one.
1648 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
1649 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
1650 comparing against one.
1652 * unroll.c (precondition_loop_p): Remove unused parameter
1653 `loop_end'. All callers changed.
1655 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1657 * reload1.c (maybe_fix_stack_asms): New static function.
1660 * reload.h (compute_use_by_pseudos): Declare.
1662 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
1663 (something_needs_reloads): Delete variable.
1664 (finish_spills): New function.
1665 (compute_use_by_pseudos): New function.
1667 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
1668 Use the reload_insn_chain instead of walking the rtl directly.
1670 (reload): Allocate and free spilled_pseudos.
1671 Ensure that all calls of spill_hard_reg are followed by a call to
1673 Use the insns_need_reload list instead of something_needs_reloads
1674 to find out if reload_as_needed must be called.
1675 Clear unused_insn_chains at the end.
1677 (calculate_needs_all_insns): Lose FIRST parameter. All callers
1679 Delete code to keep track of current basic block.
1680 Walk reload_insn_chain instead of the rtl structure. Build the
1681 insns_need_reload chain.
1682 Remember which insns need reloading/elimination by setting the
1683 appropriate fields in struct insn_chain, not by putting modes on the
1686 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
1687 arg INSN. All callers changed.
1688 Delete declaration of struct needs.
1689 Don't set something_needs_reloads.
1690 Record insn needs in the CHAIN argument.
1692 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
1694 (reload_as_needed): Lose FIRST arg. All callers changed.
1695 Walk the reload_insn_chain instead of the rtx structure.
1696 Delete code to keep track of current basic block.
1697 Rename one of the NEXT variables to OLD_NEXT.
1699 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
1701 (choose_reload_regs): Likewise.
1703 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
1706 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
1707 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
1708 (hard_regs_live, hard_regs_need_restore): Delete variables.
1709 (n_regs_saved): Now static.
1710 (referenced_regs, this_insn_sets): New variables.
1712 (setup_save_areas): Restructure the code a bit.
1714 (restore_referenced_regs): Delete function.
1715 (mark_referenced_regs): New function, similar to the old
1716 restore_referenced_regs, but mark registers in referenced_regs.
1718 (clear_reg_live): Delete function.
1719 (mark_set_regs): Renamed from set_reg_live. All callers changed.
1720 Only mark registers in this_insn_sets.
1722 (save_call_clobbered_regs): Rework this function to walk the
1723 reload_insn_chain instead of using the list of instructions directly.
1724 Delete code to keep track of register lives, compute live regs on the
1725 fly from information in the chain.
1726 Instead of calling restore_referenced_regs, use mark_referenced_regs,
1727 then walk the set it computes and call insert_restore as appropriate.
1729 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
1731 Restructure the code a bit. Test hard_regs_saved instead of
1732 hard_regs_need_restore.
1733 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
1734 args. All callers changed.
1735 Restructure the code a bit. Use TO_SAVE to determine which regs to
1736 save instead of more complicated test.
1737 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
1739 Create a new insn_chain structure for the new insn and place it
1742 * rtl.texi: Update documentation to reflect that reload no longer
1743 puts modes on the insns.
1745 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1747 * function.c (purge_addressof_1): Force the first argument of a
1748 CALL insn to memory.
1750 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
1752 * rtl.h: Delete duplicate prototypes. Add some missing
1754 * rtlanal.c: (for_each_rtx): Formatting tweak.
1756 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1758 * real.c (emdnorm and etoasc): Disable round to even for c4x target
1759 to be compatible with TI compiler.
1761 * Makefile.in (USER_H): Add va-c4x.h to definition.
1763 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
1765 * function.c (purge_addressof_1): Fix typo in inequality: do
1766 bitfield optimization for equal mode sizes.
1767 * expmed.c (store_bit_field): Don't take subregs of subregs in
1768 the movstrict case. Tidy a potential problem in the multi-word case.
1769 (extract_bit_field): Likewise.
1771 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1773 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
1775 Compute max_uid_for_flow by calling get_max_uid after the scan.
1776 (find_basic_blocks_1): Don't emit NOPs here.
1778 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
1780 * alias.c (base_alias_check): Accept new args for the modes of the
1781 two references. Use them to determine if an AND can overlap. Update
1783 (memrefs_conflict_p): Assume sizes are aligned, and uses them
1784 to determine if an AND can overlap.
1786 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
1788 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
1789 check. Add comment to document problems with TARGET_SUN_FPA version
1791 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
1793 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1795 * Makefile.in (gencheck.o): Depend on gansidecl.h.
1797 * c-common.c (print_char_table): Add missing initializers.
1798 (scan_char_table): Likewise.
1799 (time_char_table): Likewise.
1801 * c-decl.c (c_decode_option): Mark parameter `argc' with
1803 (declare_parm_level): Mark parameter `definition_flag' with
1806 * c-lex.c (readescape): Use `(unsigned)1' in shift.
1807 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
1810 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
1812 (emit_call_1): Mark parameters `fndecl' and `funtype' with
1814 (expand_call): Cast result of MIN() to (unsigned int) when
1815 comparing against an unsigned value.
1817 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
1819 (make_definition): Remove unused parameter `op'. All callers
1821 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
1822 comparing against the result of pointer arithmetic.
1824 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
1825 when comparing against one.
1827 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
1828 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
1830 (output_die): Move variable `i' into the scope in which it is
1831 used. Change its type to `unsigned'.
1832 (output_die): Cast the result of `strlen' to (int) when passing it
1833 to ASM_OUTPUT_ASCII().
1834 (output_pubnames): Likewise.
1835 (output_line_info): Likewise.
1837 * emit-rtl.c (global_rtl): Add missing initializers.
1839 * explow.c (promote_mode): Mark parameter `for_call' with
1842 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
1843 `unsigned HOST_WIDE_INT' when comparing against one.
1844 (synth_mult): Change type of variable `cost' to int.
1845 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
1847 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
1848 when comparing against one.
1849 (get_inner_reference): Change variable `alignment' to unsigned.
1850 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
1851 int) when comparing against one.
1852 (expand_builtin_setjmp): Change type of variable `i' to size_t.
1854 * fold-const.c (div_and_round_double): Cast BASE to
1855 (HOST_WIDE_INT) when comparing against one.
1857 * gencheck.c: Include gansidecl.h.
1858 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
1860 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
1861 `tcode' with ATTRIBUTE_UNUSED.
1863 * real.c (edivm): Cast constant value to (unsigned long) in
1864 expression compared against an unsigned value.
1866 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
1867 comparing against one.
1868 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
1869 when comparing against one.
1871 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
1872 (unsigned int) when comparing against one. Likewise for
1874 (smallest_mode_for_size): Likewise.
1875 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
1876 (restore_storage_status): Likewise.
1878 * toplev.c (debug_args): Add missing initializer.
1879 (f_options): Spelling correction. Add missing initializers.
1880 (documented_lang_options): Likewise.
1881 (debug_end_source_file): Mark parameter `lineno' with
1884 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
1885 `decl' and `type' with ATTRIBUTE_UNUSED.
1887 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
1888 when comparing against one.
1889 (assemble_variable): Mark parameter `top_level' with
1891 (assemble_external_libcall): Mark parameter `fun' with
1893 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
1896 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
1898 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
1899 Replace use of r5 with use of r19.
1901 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
1903 * config/v850/v850.c (compute_register_save_size): Allow for the
1904 fact that helper functions save all registers, not just those used
1907 Replace constant 31 with macro LINK_POINTER_REGNUM.
1909 * config/v850/v850.md: Use 'indirect_operand' rather than
1910 'memory_operand' for bit test/set/clear patterns.
1912 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
1914 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
1915 * varasm.c (assemble_start_function et al): Don't call
1916 ASM_GLOBALIZE_LABEL for weak symbols.
1918 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
1920 * cse.c (equiv_constant): Check for NULL return from
1921 gen_lowpart_if_possible().
1923 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
1925 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
1927 * collect2.c (main): Pass -EL/-EB through to the compiler.
1929 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1931 * expr.c (push_block): Handle targets where the stack grows
1932 to higher addresses, but args grow to lower addresses and
1933 ACCUMULATE_OUTGOING_ARGS is not defined.
1935 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
1937 * config/v850/v850.c (print_operand): Extend meaning
1938 of 'c' operands to support .vtinherit.
1940 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1942 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
1943 Added ATTRIBUTE_UNUSED to unused function arguments.
1944 (rc_reg_operand): New predicate.
1945 (c4x_rptb_insert): New function.
1946 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
1947 (c4x_optimization_options): New function.
1949 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
1950 (decrement_and_branch_on_count): New pattern.
1951 (rptb_top): Modified pattern to work with BCT optimization.
1953 * config/c4x/c4x.h (RC_REG): New register class.
1954 (rc_reg_operand): Define prototype.
1955 (IS_RC_REG): New macro.
1956 (IS_RC_OR_PSEUDO_REG): New macro.
1957 (IS_RC_OR_PSEUDO_REGNO): New macro.
1958 (OPTIMIZATION_OPTIONS): Define.
1960 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
1962 * collect2.c (extract_init_priority): No priority is 65535.
1964 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1966 * Makefile.in (build_tooldir): new variable, same as old
1967 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
1968 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
1969 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
1971 * configure.in (gxx_include_dir): set default based on unlibsubdir
1972 * Makefile.in (tooldir): ditto
1973 (cccp.o, cpplib.o): use unlibsubdir implicitly through
1974 gxx_include_dir, includedir and tooldir
1975 (protoize.o, unprotoize.o): ditto
1977 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
1979 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
1981 * config/arm/thumb.c (thumb_override_options): Add warning about
1982 PIC code not being supported just yet.
1984 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
1986 * flow.c: Update comment.
1987 (notice_stack_pointer_modification): New static function.
1988 (record_volatile_insns): Use it.
1989 (mark_regs_live_at_end): Mark the stack pointer as alive
1990 at the end of the function if current_function_sp_is_unchanging
1992 (life_analysis_1): Set current_function_sp_is_unchanging.
1993 * function.c: Define it.
1994 (init_function_start): Initialize it.
1995 * output.h: Declare it.
1996 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
1997 the stack pointer as alive at the end of the function if
1998 current_function_sp_is_unchanging is set.
1999 * i386.c (ix86_epilogue): Optimize the restoring
2000 of the stack pointer.
2002 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
2004 * version.c: Bump for snapshot.
2006 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
2008 * c-pragma.c (handle_pragma_token): If passed a token instead
2009 of a tree, use that as the pack value.
2011 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
2013 * flow.c (find_basic_blocks_1): Fix prototype.
2015 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
2017 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
2018 (struct tree_decl): New fields no_check_memory_usage.
2019 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
2020 (init_attributes): Register it as a new attribute.
2021 (decl_attributes): Set flags on functions given that attribute.
2022 * c-decl.c (duplicate_decls): Merge new attribute.
2023 * expr.h (current_function_check_memory_usage): Declare new var.
2024 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
2025 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
2026 current_function_check_memory_usage.
2027 * function.h: Add field to struct function.
2028 * function.c (current_function_check_memory_usage): Define it.
2029 (push_function_context_to, pop_function_context_from): Save and
2031 (expand_function_start): Set it, based on global flag and function
2034 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
2035 check non-automatic variables, to permit detection of writes to
2036 read-only locations in embedded systems without memory management.
2037 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
2038 when emitting chkr_set_right_libfunc call, even if the argument is
2039 BLKmode or variable-sized; don't abort.
2041 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
2042 symbols in Pmode, not VOIDmode.
2044 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2046 * cppexp.c: When forcing unsigned comparisons, cast both sides
2049 * cpphash.h: Move static declaration of hashtab[]...
2050 * cpphash.c: ...here.
2052 * cpplib.c: Cast difference of two pointers to size_t before
2053 comparing it to size_t. Cast signed to unsigned
2054 before comparing to size_t. (FIXME: struct argdata should use
2055 unsigned buffer sizes.)
2056 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
2057 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
2058 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
2059 size_t before comparison.
2061 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
2063 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
2064 (find_basic_blocks_1): Similarly.
2065 * output.h (find_basic_blocks): Fix prototype.
2066 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
2067 find_basic_blocks anymore.
2069 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
2071 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
2072 (sbitmap_free, sbitmap_vector_free): New macros.
2073 * output.h (rtl_dump_file): Declare.
2075 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
2077 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
2079 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2081 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
2083 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
2084 (divide): Remove unused variable `tmp'.
2085 (si_to_float): Cast numeric constant to (SItype) before comparing
2088 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
2090 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
2091 * gcc.c (add_preprocessor_option): Correct typo when allocating
2092 memory, sizeof() argument had one too many `*'.
2093 (add_assembler_option): Likewise.
2094 (add_linker_option): Likewise.
2095 * gcov.c (output_data): Likewise.
2096 * local-alloc.c (memref_used_between_p): Likewise.
2097 (update_equiv_regs): Likewise.
2098 * loop.c (strength_reduce): Likewise.
2099 * reg-stack.c (record_asm_reg_life): Likewise.
2100 (subst_asm_stack_reg): Likewise.
2101 * reorg.c (dbr_schedule): Likewise.
2103 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2105 * flow.c (life_analysis_1): Break out some functions.
2106 (find_basic_blocks_1): Likewise. Also move some variables out and
2108 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
2109 new static var nonlocal_label_list with it.
2110 (active_eh_region, nested_eh_region, label_value_list,
2111 nonlocal_label_list): New static variables.
2112 (make_edges, delete_unreachable_blocks, delete_block): New static
2113 functions, broken out of find_basic_blocks_1.
2114 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
2115 noop_move_p): New static functions, broken out of life_analysis_1.
2117 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
2119 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
2120 Take extra care for op0 now possibly being a subreg.
2121 (extract_bit_field): Likewise.
2122 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
2123 the reg to memory if there is no equal sized integral mode.
2124 * stor-layout.c (int_mode_for_mode): New function.
2125 * machmode.h: Prototype it.
2127 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
2129 * global.c (build_insn_chain): Verify no real insns exist past the
2130 end of the last basic block, then exit the loop.
2132 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2134 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
2136 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
2138 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
2140 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
2142 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
2144 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
2146 * flow.c (find_basic_blocks): Correctly determine when a call
2147 is within an exception region.
2149 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
2151 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
2153 * cpplib.h: Protect from multiple inclusions.
2154 * cpplib.c: Fix minor formatting problems.
2156 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
2158 * jump.c (jump_optimize): Revert accidental patch.
2160 * Makefile.in (cpplib.o): Use unlibsubdir.
2162 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
2164 * loop.c (get_condition): Allow combine when either compare is
2167 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
2169 * version.c: Bump for snapshot.
2171 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
2173 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
2174 (init_lex): Initialize ridpointers[RID_BYREF].
2175 * c-lex.h (enum rid): Add RID_BYREF.
2176 * c-parse.gperf: Add RID_BYREF as a type qualifier.
2177 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
2178 (encode_type_qualifiers): Similarly
2179 * c-gperf.h: Rebuilt.
2181 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
2183 * c-common.c (type_for_mode): Only return TItype nodes when
2184 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2185 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
2186 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2187 (init_decl_processing): Only create TItype nodes when
2188 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2189 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
2190 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2192 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2194 * stmt.c (n_occurrences): New static function.
2195 (expand_asm_operands): Verify that all constrains match in the
2196 number of alternatives.
2197 Verify that '+' or '=' are at the beginning of an output constraint.
2198 Don't allow '&' for input operands.
2199 Verify that '%' isn't written for the last operand.
2200 * reload.c (find_reloads): Abort if an asm is found with invalid
2201 constraints; all possible problems ought to be checked for earlier.
2203 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2205 * flags.h (flag_branch_on_count_reg): Always declare
2206 * toplev.c (flag_branch_on_count_reg): Likewise.
2207 * toplev.c: Fix typos.
2209 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
2212 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
2214 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
2216 (find_basic_blocks_1): Add a nop to the end of a basic block when
2217 a trailing call insn does not have abnormal control flow.
2218 * gcse.c (pre_transpout): New variable.
2219 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
2220 (compute_pre_transpout): Calculate it.
2221 (compute_pre_ppinout): Use it to eliminate impossible placements
2222 due to abnormal control flow through calls.
2223 (compute_pre_data): Call compute_pre_transpout.
2225 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2227 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
2229 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
2231 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
2232 and matching define_insns): Tack on a `use' of the table label, so
2233 flow analysis will recognize a tablejump.
2235 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
2237 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
2238 always end basic blocks for abnormal edge reasons.
2240 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
2242 * config/i386/i386.h: Remove definition of
2243 HANDLE_PRAGMA_PACK_PUSH_POP.
2245 * config/i386/go32.h: Add definition of
2246 HANDLE_PRAGMA_PACK_PUSH_POP.
2248 * config/i386/win32.h: Add definition of
2249 HANDLE_PRAGMA_PACK_PUSH_POP.
2251 * config/i386/cygwin32.h: Add definition of
2252 HANDLE_PRAGMA_PACK_PUSH_POP.
2254 * c-pragma.c (insert_pack_attributes): Do not insert
2255 attributes unless #pragma pack(push,<n>) is in effect.
2257 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
2259 * expr.c (emit_group_store): Handle a PARALLEL destination.
2261 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
2263 * gcse.c (pre_insert_insn): When a call ends a bb, insert
2264 the new insns before the argument regs are loaded.
2266 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2268 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
2269 (c-parse.gperf): Update comments describing invocation flags.
2270 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
2272 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
2274 * reload1.c (reload): Call free before clobbering the memory
2275 locations or constants pointers.
2277 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2279 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
2280 for efficiency by checking whether we need to modify the current
2281 stack permission at all.
2282 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
2283 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
2284 __enable_execute_stack libcall here too if
2285 TRANSFER_FROM_TRAMPOLINE is defined.
2286 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
2289 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
2291 * Makefile.in (DRIVER_DEFINES): Remove last change.
2293 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2295 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
2296 insns we're going to copy.
2297 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
2299 * loop.c (count_one_set): Add prototype.
2301 * caller-save.c (restore_referenced_regs): Lose mode argument.
2302 (insert_save): Lose mode argument.
2303 (insert_restore): Lose mode argument.
2304 (insert_one_insn): Lose mode argument.
2305 (save_call_clobbered_regs): Lose mode argument.
2306 (setup_save_areas): Take no argument and return void. All callers
2308 Don't verify validity of memory addresses.
2309 * reload.h (setup_save_ares): Adjust prototype.
2310 (save_call_clobbered_regs): Likewise.
2311 * reload1.c (delete_caller_save_insns): New function.
2312 (caller_save_spill_class): Delete variable.
2313 (caller_save_group_size): Delete variable.
2314 (reload): Call setup_save_areas and save_call_clobbered_regs
2315 in the main loop, before calling calculate_needs_all_insns.
2316 Don't call save_call_clobbered_regs after the loop.
2317 Call delete_caller_save_insns at the end of an iteration if
2319 Delete code to manage caller_save_spill_class.
2320 Emit the final note before setting reload_first_uid.
2321 Simplify test that determines whether reload_as_needed gets run.
2322 (calculate_needs): Delete code to manage caller_save_spill_class.
2324 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
2326 * collect2.c (main): Initialize ld_file_name.
2328 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
2330 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
2331 check for flag_function_sections.
2333 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2335 * cse.c (insert_regs): Fix bug in Sep 24 change.
2337 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2339 * flags.h (flag_dump_unnumbered): Declare.
2340 * toplev.c (flag_dump_unnumbered): Don't declare.
2341 * print-rtl.c (flags.h): Include.
2342 (print_rtl_single): Add return value.
2343 * rtl.h (print_rtl_single): Update declaration.
2344 * flow.c (flag_dump_unnumbered): Don't declare.
2345 (print_rtl_with_bb): Use return value of print_rtl_single.
2347 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2349 * loop.c (count_one_set): New static function, broken out of
2351 (count_loop_regs_set): Call it.
2352 * global.c (mark_reg_store): Handle clobbers here by not calling
2354 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
2355 is in fact a clobber.
2356 * integrate.c (process_reg_param): New function, broken out of
2357 expand_inline_function.
2358 (expand_inline_function): Call it.
2361 * i386.md (addsidi3_1): Delete unused variable temp.
2362 (addsidi3_2): Likewise.
2363 (clstrstrsi): Delete unused variable addr1.
2365 * rtl.h: Don't declare any functions also declared in recog.h.
2367 * Makefile.in (stupid.o): Update dependencies.
2368 (global.o): Likewise.
2370 * global.c: Include reload.h
2371 (reg_becomes_live): New function.
2372 (reg_dies): New function.
2373 (build_insn_chain): New function.
2374 (global_alloc): Call build_insn_chain before calling reload.
2376 * reload.h (struct needs): New structure definition.
2377 (struct insn_chain): Likewise.
2378 (reload_insn_chain): Declare variable.
2379 (new_insn_chain): Declare function.
2382 * reload1.c (reload_startobj): New variable.
2383 (reload_insn_chain): New variable.
2384 (unused_insn_chains): New variable.
2385 (new_insn_chain): New function.
2386 (init_reload): Initialize reload_startobj, not reload_firstobj.
2387 (reload): Initialize reload_firstobj.
2388 Before returning, free everything on the reload_obstack.
2390 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
2391 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
2392 current_chain): New variables.
2393 (reg_where_born): Delete variable.
2394 (REG_WHERE_BORN): New macro.
2395 (find_clobbered_regs): New function.
2396 (stupid_life_analysis): Don't allocate/free reg_where_born.
2397 Allocate and free reg_where_born_exact, reg_where_born_clobber,
2398 reg_where_dead_chain.
2399 Use REG_WHERE_BORN instead of reg_where_born.
2400 While processing the insns, build the reload_insn_chain with
2401 information about register lifetimes.
2402 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
2403 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
2405 Compute and information about birth and death of pseudo registers in
2406 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
2407 Delete code to set elements of reg_where_born.
2409 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2411 * tree.def (GOTO_EXPR): Modified documentation.
2412 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
2415 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
2417 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
2418 loop_final_value, loop_comparison_code): No longer static.
2419 (unroll_loop): Delete loop_start_value update.
2420 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
2421 loop_final_value, loop_comparison_code): Extern.
2422 (loop_start_value): Delete extern.
2423 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
2424 loop_comparison_value, loop_comparison_code): Delete.
2425 (loop_optimize): Remove initialization for deleted variables.
2426 (strength_reduce): Delete analyze_loop_iterations call. Only call
2427 insert_bct if flag_branch_count_on_reg set.
2428 (analyze_loop_iterations): Delete.
2429 (insert_bct): Remove iteration count calculation. Move checks for
2430 viable BCT optimization to here. Obtain iteration count from
2431 loop_iterations and correct for unrolling. Check for enough
2432 iteration to be beneficial. Comment out runtime iteration count
2434 (insert_bct): Print iteration count in dump file. Remove
2435 loop_var_mode and use word_mode directly.
2437 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
2438 * rs6000.c (rs6000_override_options): Use it.
2439 (optimization_options): Enable use of flag_branch_on_count_reg.
2440 * rs6000.md (define_function_unit): Describe 604e.
2442 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2444 * loop.c (move_movables): Corrected threshold calculation for
2445 moved_once registers.
2447 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2449 * loop.c (combine_givs_p): Fix test for identical givs.
2451 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
2453 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
2454 call abort if the function is already defined.
2456 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
2458 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
2459 truncation is not a no-op.
2461 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
2463 * version.c: Bump for snapshot.
2465 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
2467 * version.c: Bump for snapshot.
2469 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
2471 * expmed.c (expand_divmod): Don't widen for computing remainder
2472 if we seem to have a divmod pattern for needed mode.
2474 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2476 * cpplib.c (macroexpand): Correct off-by-one error in handling
2479 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
2481 * combine.c (expand_field_assignment): Don't do bitwise operations
2482 on MODE_FLOAT; pun to MODE_INT if possible.
2484 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
2485 scott snyder <snyder@d0sgif.fnal.gov>
2487 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
2488 linker. Recognize mangled names in quotes.
2490 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2492 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
2493 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
2494 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
2495 (lshrsi3_extend, lshrsi3_extend2): Ditto.
2497 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2499 * function.c (purge_addressof_1): If trying to take a sub-word
2500 integral piece of a floating point mode, put it on the stack.
2502 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
2504 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
2506 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
2508 * PROJECTS: Remove template friends.
2510 * collect2.c (sort_ids): Remove unused variable.
2512 * tm.texi (MATH_LIBRARY): Document.
2513 (NEED_MATH_LIBRARY): Remove.
2515 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
2516 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
2518 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
2520 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
2521 last_end to 0x7fffffff.
2523 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2525 * function.c (purge_addressof_1): Do not perform endianness
2526 corrections on bitpos, who we call will do it for us.
2528 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
2530 * h8300.c (WORD_REG_USED): Fix typo.
2531 (initial_offset): Use WORD_REG_USED.
2533 * h8300.c (handle_pragma): Fix typo.
2535 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2537 * caller-save.c (insert_save_restore): Break this function up
2538 into new functions insert_restore, insert_save and insert_one_insn.
2539 All callers changed.
2540 (insert_restore): New function, mostly broken out of
2541 insert_save_restore.
2542 (insert_save): Likewise.
2543 (insert_one_insn): Likewise.
2544 (restore_referenced_regs): New argument BLOCK. All callers changed.
2545 (save_call_clobbered_regs): Don't keep track of basic block boundaries
2546 in this function, do it in insert_one_insn instead.
2548 * reload1.c (reload): Break out some more pieces into separate
2550 (dump_needs): New function, broken out of reload.
2551 (set_initial_elim_offsets): Likewise.
2552 (init_elim_table): Likewise.
2553 (update_eliminables): Likewise.
2555 * global.c (global_alloc): Delete code to manage the scratch_list.
2556 * local-alloc.c (qty_scratch_rtx): Delete.
2557 (scratch_block): Delete.
2558 (scratch_list): Delete.
2559 (scratch_list_length): Delete.
2560 (scratch_index): Delete.
2561 (alloc_qty_for_scratch): Delete.
2562 (local-alloc): Update initialization of max_qty.
2563 Delete code to manage the scratch list.
2564 Delete code to allocate/initialize qty_scratch_rtx.
2565 (block_alloc): Don't allocate quantities for scratches.
2566 Delete code to manage the scratch list.
2567 * regs.h (scratch_list): Delete declaration.
2568 (scratch_block): Delete declaration.
2569 (scratch_list_length): Delete declaration.
2570 * reload1.c (reload): Delete code to manage the scratch list.
2571 (spill_hard_reg): Likewise.
2572 (mark_scratch_live): Delete.
2574 * recog.c (alter_subreg): Delete declaration.
2576 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2578 * Makefile.in (cccp.o): Fix typo in last patch.
2580 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2582 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
2583 * config/sh/lib1funcs.asm (___set_fpscr): Add.
2585 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
2587 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
2588 NULL_RTX as an argument.
2590 * Makefile.in (unlibsubdir): Define.
2591 (DRIVER_DEFINES): Use unlibsubdir.
2592 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
2593 (stmp-fixinc): Similarly.
2595 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2597 * regmove.c (regmove_optimize): Add variable old_max_uid.
2598 At the end of the function, update basic_block_end.
2600 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2602 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
2603 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
2606 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
2608 * config/arm/arm.c: Improve interworking support.
2610 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2612 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
2613 copied from reload_out[r] .
2615 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
2617 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
2618 with more than three size ranges.
2620 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
2622 * rtl.c (mode_name): Add a null string at the end of the array.
2623 (mode_wider_mode): Change type to unsigned char.
2624 (mode_mask_array): New variable.
2625 (init_rtl): Update for mode_wider_mode type change.
2627 * rtl.h (mode_wider_mode): Change type to unsigned char.
2628 (mode_mask_array): Declare.
2629 (GET_MODE_MASK): Use mode_mask_array.
2631 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
2633 * calls.c (expand_call) : Encapsulate code into
2634 copy_blkmode_from_reg.
2635 * expr.c (copy_blkmode_from_reg): New function.
2636 * expr.h (copy_blkmode_from_reg): New function.
2637 * integrate.c (function_cannot_inline_p): We can inline
2639 (expand_inline_function): Use copy_blkmode_from_reg
2640 if needed. Avoid creating BLKmode REGs.
2641 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
2644 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
2646 * config/v850/v850.c: Add function prototypes.
2647 Add support for v850 special data areas.
2649 * config/v850/v850.h: Add support for v850 special data areas.
2651 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
2652 HANDLE_PRAGMA_PACK_PUSH_POP.
2653 (push_alignment): New function: Cache an alignment requested
2654 by a #pragma pack(push,<n>).
2655 (pop_alignment): New function: Pop an alignment from the
2657 (insert_pack_attributes): New function: Generate __packed__
2658 and __aligned__ attributes for new decls whilst a #pragma pack
2660 (add_weak): New function: Cache a #pragma weak directive.
2661 (handle_pragma_token): Document calling conventions. Add
2662 support for #pragma pack(push,<n>) and #pragma pack (pop).
2664 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
2665 are defined enable HANDLE_PRAGMA_PACK.
2666 Move 'struct weak_syms' here (from varasm.c).
2667 Add pragma states for push and pop pragmas.
2669 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
2672 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
2673 HANDLE_GENERIC_PRAGMAS.
2675 * varasm.c: Move definition of 'struct weak_syms' into
2677 (handle_pragma_weak): Deleted.
2679 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2681 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2683 * c-decl.c (start_function): Add invocation of
2684 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
2686 * tm.texi: Remove description of non-existant macro
2687 SET_DEFAULT_SECTION_NAME.
2689 (HANDLE_SYSV_PRAGMA): Document.
2690 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
2692 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
2694 * config.sub: Recognize i[34567]86-pc-udk as new target.
2695 * configure.in: Likewise.
2696 * config/i386/t-udk: New file.
2697 * config/i386/udk.h: New file.
2699 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
2701 * reorg.c (check_annul_list_true_false): Remove unused variables.
2702 (steal_delay_list_from_target): Add missing "used_annul" variable.
2703 (try_merge_delay_insns): Close out half formed comment.
2705 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2707 * cpplib.c (macroexpand): If arg->raw_before or
2708 arg->raw_after, remove any no-reexpansion escape at the
2709 beginning of the pasted token. Correct handling of whitespace
2710 markers and no-reexpand markers at the end if arg->raw_after.
2712 * toplev.c (documented_lang_options): Recognize -include,
2713 -imacros, -iwithprefix, -iwithprefixbefore.
2714 * cpplib.c (cpp_start_read): Process -imacros and -include
2715 switches at the same time and in command-line order, after
2716 initializing the dependency-output code. Emit properly nested
2717 #line directives for them. Emit a #line for the main file
2718 before processing these switches, and don't do it again
2721 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
2723 * function.c (purge_addressof_1): Use bitfield manipulation
2724 routines to handle mem mode < reg mode.
2726 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2728 * reorg.c (try_merge_delay_insns): Account for resources referenced
2729 in each instruction in INSN's delay list before trying to eliminate
2730 useless instructions. Similarly when looking at a trial insn's delay
2733 * reorg.c (check_annul_list_true_false): New function.
2734 (steal_delay_list_from_{target,fallthrough}): Call it and also
2735 refine tests for when we may annul if already filled a slot.
2736 (fill_slots_from_thread): Likewise.
2737 (delete_from_delay_slot): Return newly-created thread.
2738 (try_merge_delay_isns): Use its new return value.
2740 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
2742 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
2743 used to compute a giv or as some other non-counting use.
2745 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2747 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2748 * local-alloc.c (find_free_reg): Use it.
2749 * global.c (find_reg): Likewise.
2750 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
2752 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
2753 * caller-save.c (init_caller_save): Use it.
2754 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
2756 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2758 * configure.in: Add --enable-cpplib option which uses cpplib
2759 for cpp, but doesn't link cpplib into cc1. Make help text
2760 capitalization consistent.
2761 * configure: Rebuilt.
2763 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
2765 * function.c (gen_mem_addressof): If the address REG is
2766 REG_USERVAR_P make the new REG be so also.
2767 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
2768 in an attempt to clarify slightly.
2770 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
2772 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
2773 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
2775 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
2777 * toplev.c: Fix last patch.
2779 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
2781 * loop.c (get_condition): Fix typo in May 9 change.
2783 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2785 * invoke.texi (-fexceptions): Merge 2 different descriptions.
2787 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2789 * toplev.c (documented_lang_options): Spelling corrections.
2791 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2793 * configure.in: new flags --with-ld and --with-as, equivalent
2794 to setting LD and AS environment variables. Test whether
2795 specified arguments are GNU commands, and report them with
2796 checking messages. Use the specified AS for configure
2799 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
2801 * gcc.c (find_a_file): when looking for `as' and `ld', return
2802 the DEFAULT program if it exists
2803 * collect2.c (main): use DEFAULT_LINKER if it exists
2805 * gcc.c (find_a_file): the test for existence of a full
2806 pathname was reversed
2808 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
2810 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
2811 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
2813 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
2815 * tree.h (TYPE_BINFO): Document.
2817 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
2819 * i386-coff.h (dbxcoff.h): Added.
2821 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
2823 * toplev.c: fix bad patch around flag_data_sections.
2825 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
2827 * reload1.c (reload): Use reload_address_index_reg_class and
2828 reload_address_base_reg_class when setting
2829 caller_save_spill_class. (Patch generated by Jim Wilson:
2832 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
2834 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
2835 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
2836 * expr.c (store_field): Add alias_set parameter. Set the
2837 MEM_ALIAS_SET accordingly, if the target is a MEM.
2838 (expand_assignment): Use it.
2839 (store_constructor_field): Pass 0.
2840 (expand_expr): Likewise.
2842 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
2844 * flags.h: Add flag_data_sections.
2845 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
2846 (compile_file): Error if flag_data_sections not supported.
2847 * varasm.c (assemble_variable): Handle flag_data_sections.
2848 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
2849 * config/mips/elf.h: Likewise.
2850 * config/mips/elf64.h: Likewise.
2851 * invoke.texi: Describe -fdata-sections.
2853 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
2855 * invoke.texi (-ffloat-store): Clarify that this option
2856 does not affect intermediate results -- only variables.
2858 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
2860 * cpp.texi: Update for Fortran usage from Craig.
2862 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2864 * rs6000.c (function_arg_boundary): Revert accidental change on
2867 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
2869 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
2870 (output_mi_thunk): Declare.
2872 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
2873 (output_function_profiler): Use r12 for temp, instead of r11 so
2874 that we preserve the static chain register.
2876 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
2878 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
2880 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2882 * sh.c (gen_shl_sext): Fix case 5.
2884 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2886 * reload1.c (reload_combine): Re-add line that got accidentally lost.
2888 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2890 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
2891 accessing variables until they are initialized via va_arg().
2893 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2895 * reload1.c (reload_combine): Initialize set before using.
2897 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
2899 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
2902 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
2904 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
2905 operand3 with mask before using it. Patch provided by Jim Wilson.
2907 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2909 * config/sparc/sparc.c (function_value): Perform the equivalent of
2910 PROMOTE_MODE for ARCH64.
2911 (eligible_for_epilogue_delay): Allow DImode operations in delay
2912 slot of a return for ARCH64.
2914 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2916 * sh.md (sqrtsf2): Fix mode of sqrt.
2918 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2920 * reload1.c (choose_reload_regs): Also try inheritance when
2921 reload_in is a stack slot of a pseudo, even if we already got a
2924 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2926 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
2927 (reload_cse_regs): New function body: call reload_cse_regs_1,
2928 reload_combine, reload_cse_move2add.
2929 When doing expensive_optimizations, call reload_cse_regs_1 a
2930 second time after reload_cse_move2add.
2931 (reload_combine, reload_combine_note_store): New functions.
2932 (reload_combine_note_use): New function.
2933 (reload_cse_move2add, move2add_note_store): New functions.
2935 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2937 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
2938 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
2940 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
2941 more than 3 such reloads.
2943 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
2944 RELOAD_FOR_X_ADDR_ADDR reload.
2946 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2948 * expr.c (store_constructor): When initializing a field that is smaller
2949 than a word, at the start of a word, try to widen it to a full word.
2951 * cse.c (cse_insn): When we are about to change a register,
2952 remove any invalid references to it.
2954 (remove_invalid_subreg_refs): New function.
2955 (mention_regs): Special treatment for SUBREGs.
2956 (insert_regs): Don't strip SUBREG for call to mention_regs.
2957 Check if reg_tick needs to be bumped up before that call.
2958 (lookup_as_function): Try to match known word_mode constants when
2959 looking for a norrower constant.
2960 (canon_hash): Special treatment for SUBREGs.
2962 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2964 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
2965 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
2966 defined, emit libcall to __enable_execute_stack. Also fix opcodes
2967 and offsets in actual stack trampoline code so they match the
2968 commentary and actually work.
2970 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2972 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
2974 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
2975 tmake_file. Set extra_parts to needed crt objects.
2976 * configure: Rebuilt.
2977 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
2978 (TARGET_DEFAULT): Set if default is v9 or ultra.
2979 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
2980 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
2981 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
2982 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
2983 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
2984 (TARGET_VERSION): Define.
2985 (MULTILIB_DEFAULT): Define.
2986 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
2987 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
2988 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
2990 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
2991 * config/sparc/sparc.c (sparc_override_options): If arch and
2992 pointer size disagree, emit diagnostic and fix it up. If
2993 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
2994 V8PLUS in 64-bit mode.
2995 * config/sparc/t-linux64: New file.
2996 * config/sparc/t-sol2-64: New file.
2997 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
2998 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
2999 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
3000 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
3001 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
3002 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
3004 (STARTFILE_SPEC): Set approriately based upon those.
3005 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
3006 disposition of DEFAULT_ARCH32_P.
3007 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
3008 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
3009 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
3010 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
3011 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
3013 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
3015 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
3017 * rtl.h (init_virtual_regs): New function.
3018 * emit-rtl.c (init_virtual_regs): Define.
3019 (insn_emit): Use it.
3020 * integrate.c (save_for_inline_copying): Likewise.
3022 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
3024 * config/arm/thumb.h: The following patches were made by Jim Wilson:
3025 (enum reg_class): Add NONARG_LO_REGS support.
3026 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
3027 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
3028 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
3029 completes. Re-enable HImode REG+OFFSET addresses.
3030 (LEGITIMIZE_RELOAD_ADDRESS): Define.
3032 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
3034 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
3036 * alpha.c (get_aligned_mem): Revert Sep 20 change.
3037 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
3038 (alpha_align_insns): Properly calculate initial offset wrt max_align.
3040 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
3042 * arm.c (find_barrier): Revert change of Apr 23. Handle table
3043 jumps as a single entity, taking into account the size of the
3046 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
3048 * tree.def (SWITCH_EXPR): New tree node definition.
3050 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
3052 * version.c: Bump for snapshot.
3054 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
3056 * version.c: Bump for snapshot.
3058 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
3060 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
3063 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
3065 * Revert this patch.
3066 * reload.c (find_reloads): Do not replace a pseudo with
3067 (MEM (reg_equiv_addr)) in the initializing insn for the
3070 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
3072 * final.c (final_scan_insn): Disable tracking CC across branches.
3074 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3076 * expr.h (eh_rtime_match_libfunc): New extern declaration.
3077 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
3078 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
3079 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
3080 NULL. Only include <stdio.h> if inhibit_libc is not defined.
3082 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
3084 * toplev.c (rest_of_compilation): Skip compiling anything with
3085 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
3087 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
3089 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
3090 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
3091 use in_libcall_block.
3092 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
3093 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
3096 Mon Sep 21 14:02:23 1998
3098 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
3099 typo in no-fancy-math-387 description.
3101 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
3103 * version.c: Bump for snapshot.
3105 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
3107 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
3109 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
3111 * i386.h: (TARGET_SWITCHES) Add description fields for flags
3112 documented in install.texi.
3113 (TARGET_OPTIONS) Likewise.
3115 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
3117 * version.c: Bump for snapshot.
3119 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
3121 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
3122 * cccp.c (main): Likewise.
3124 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
3125 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
3128 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
3130 * Makefile.in (LIBS): Link in libiberty.a.
3131 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
3133 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
3135 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
3136 it to update bb boundaries. Update caller.
3137 * function.c (reposition_prologue_and_epilogue_notes): Update
3138 bb boundaries wrt the moved note.
3140 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
3142 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
3144 * configure: Regenerate.
3146 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
3148 * alpha.c (alpha_sr_alias_set): New variable.
3149 (override_options): Set it.
3150 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
3151 (mode_mask_operand): Fix signed-unsigned comparision warning.
3152 (alpha_expand_block_move): Likewise.
3153 (print_operand): Likewise.
3154 (get_aligned_mem): Use change_address.
3155 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
3156 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
3157 (alphaev4_next_nop, alphaev5_next_nop): New functions.
3158 (alpha_align_insns): Remade from old alphaev5_align_insns
3159 to handle multiple processors.
3160 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
3161 * output.h (label_to_alignment): Prototype.
3163 * tree.c (new_alias_set): New function.
3164 * tree.h (new_alias_set): Declare it.
3165 * c-common.c (c_get_alias_set): Use it.
3167 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
3169 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
3170 to an ABS expr, convert an unsigned input to signed.
3172 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
3174 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
3176 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3178 * configure.in: Add support for c4x targets.
3179 * configure: Rebuilt.
3181 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
3183 * combine.c (distribute_notes): If an insn is a cc0 user, only
3184 delete it if we can also delete the cc0 setter.
3186 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
3188 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
3189 (invert_truthvalue): Enable truthvalue inversion for
3190 floating-point operands if -ffast-math.
3192 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
3194 * configure.in: Disable collect2 for nextstep. Instead use
3196 * configure: Rebuilt.
3197 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
3198 (ENDFILE_SPEC): Define.
3199 (OBJECT_FORMAT_MACHO): Define.
3200 (EH_FRAME_SECTION_ASM_OP): Define.
3201 * crtstuff.c: Handle MACHO.
3203 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
3205 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
3207 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
3209 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
3210 (_fpadd_parts): Get sign right for 0.
3212 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3214 * ginclude/varargs.h: Add support for C4x target.
3215 * ginclude/stdargs.h: Likewise.
3217 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
3219 * alpha.c (alpha_return_addr): SET should be VOIDmode.
3220 (alpha_emit_set_long_const): Rewrite to be callable from reload
3222 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
3223 * alpha.md (movdi): Likewise.
3225 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
3227 * arm.c (add_constant): New parameter address_only, change caller.
3228 Set it non-zero if taking the address of an item in the pool.
3229 (arm_reorg): Handle cases where we need the address of an item in
3232 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
3234 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
3235 memory addresses that are not in standard canonical form.
3237 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
3239 * README.C4X: New file with information about the c4x ports.
3240 * ginclude/va-c4x.h: New file for c4x varargs support.
3241 * config/c4x: New directory with c4x port files.
3243 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
3245 * reload.c (find_reloads): Do not replace a pseudo with
3246 (MEM (reg_equiv_addr)) in the initializing insn for the
3249 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
3251 * toplev.c (rest_of_compilation): Set bct_p on second call to
3253 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
3255 (strength_reduce): Only call analyze_loop_iterations and
3256 insert_bct if bct_p set.
3257 (check_dbra_loop): Fix typo.
3258 (insert_bct): Use word_mode instead of SImode.
3259 (instrument_loop_bct): Likewise. Do not delete iteration count
3260 condition code generation insn. Initialize iteration count before
3262 * rtl.h (loop_optimize): Update prototype.
3264 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
3265 not doubleword aligned.
3267 * rs6000.c (optimization_options): New function.
3268 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
3269 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
3270 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
3271 first; cr1 can be used for FP record condition insns.
3273 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
3275 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
3278 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
3281 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
3283 (block_move_call): New function: Call a library routine to copy a
3285 (m32r_expand_block_move): New function: Expand a "movstrsi"
3286 pattern into a sequence of insns.
3287 (m32r_output_block_move): New function: Expand a
3288 "movstrsi_internal" pattern into a sequence of assembler opcodes.
3289 (m32r_block_immediate_operand): New function: Return true if the
3290 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
3292 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3294 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
3296 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
3298 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3300 * regmove.c (copy_src_to_dest): Check that modes match.
3302 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
3304 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
3306 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
3308 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
3309 narrower than FLOAT_REGS.
3311 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3313 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
3315 * Makefile.in (old_gxx_include_dir): removed
3317 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
3319 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
3322 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
3323 (sh_handle_pragma): Change function arguments to match new
3324 specification for HANDLE_PRAGMA.
3326 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3328 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
3330 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
3331 When generating output, initialize missing struct member to zero.
3333 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3335 * regmove.c (copy_src_to_dest): Don't copy if that requires
3336 (a) new register(s).
3338 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3340 * global.c (reg_allocno): Now static.
3341 * reload1.c (reg_allocno): Delete declaration.
3342 (order_regs_for_reload): Take no arguments. Don't treat regs
3343 allocated by global differently than those allocated by local-alloc.
3345 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
3347 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
3348 condition, fix format strings.
3349 (output_function_epilogue): Likewise.
3351 * m68k/m68k.c: Don't include <stdlib.h> directly.
3353 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
3355 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
3356 mem_first_set, mem_last_set; because 0 can be a CUID.
3357 (oprs_unchanged_p): Use new definition.
3358 (record_last_reg_set_info): Likewise.
3359 (record_last_mem_set_info): Likewise.
3360 (compute_hash_table): Likewise.
3362 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
3364 * rs6000.c (output_epilogue): Handle Chill.
3366 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3367 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3369 * combine.c (make_extraction): If no mode is specified for
3370 an operand of insv, extv, or extzv, default it to word_mode.
3371 (simplify_comparison): Similarly.
3372 * expmed.c (store_bit_field): Similarly.
3373 (extract_bit_field): Similarly.
3374 * function.c (fixup_var_regs_1): Similarly.
3375 * recog.c (validate_replace_rtx_1): Similarly.
3376 * mips.md (extv, extzv, insv expanders): Default modes for most
3377 operands. Handle TARGET_64BIT.
3378 (movdi_uld, movdi_usd): New patterns.
3380 * pa.c (emit_move_sequence): Do not replace a pseudo with its
3381 equivalent memory location unless we have been provided a scratch
3382 register. Similarly do not call find_replacement unless a
3383 scratch register has been provided.
3385 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3387 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
3390 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
3392 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
3393 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
3394 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
3395 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
3396 * c-decl.c (init_decl_processing): Update accordingly.
3397 * expr.c (expand_builtin): Likewise.
3399 * rtl.h (global_rtl): Add cfa entry.
3400 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
3401 (LAST_VIRTUAL_REGISTER): Update.
3402 * emit-rtl.c (global_rtl): Add cfa entry.
3403 (init_emit): Initialize it.
3404 * function.c (cfa_offset): New.
3405 (instantiate_virtual_regs): Initialize it.
3406 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
3407 (expand_function_end): Call expand_eh_return.
3408 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
3410 * except.c (current_function_eh_stub_label): Kill.
3411 (current_function_eh_old_stub_label): Likwise; update all references.
3412 (expand_builtin_set_return_addr_reg): Kill.
3413 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
3414 (expand_builtin_set_eh_regs): Kill.
3415 (eh_regs): Produce a third reg for the actual handler address.
3416 (eh_return_context, eh_return_stack_adjust): New.
3417 (eh_return_handler, eh_return_stub_label): New.
3418 (init_eh_for_function): Initialize them.
3419 (expand_builtin_eh_return, expand_eh_return): New.
3420 * except.h: Update prototypes.
3421 * flow.c (find_basic_blocks_1): Update references to the stub label.
3422 * function.h (struct function): Kill stub label elements.
3424 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
3425 register number is one that would be in the previous window.
3426 Provide a dummy definition for non-windowed targets.
3427 (get_reg_addr): New function.
3428 (get_reg, put_reg, copy_reg): Use it.
3429 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
3430 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
3432 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
3433 (alpha_init_expanders): Initialize it.
3434 (alpha_expand_epilogue): Use it.
3435 * alpha.h: Declare it.
3436 * alpha.md (eh_epilogue): New.
3438 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
3439 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
3441 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
3443 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
3446 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3448 * except.h (struct eh_entry): Add false_label field.
3449 (end_catch_handler): Add prototype.
3450 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
3451 (start_catch_handler): When using old style exceptions, issue
3452 runtime typematch code before continuing with the handler.
3453 (end_catch_handler): New function, generates label after handler
3454 if needed by older style exceptions.
3455 (expand_start_all_catch): No need to check for new style exceptions.
3456 (output_exception_table_entry): Only output the first handler label
3457 for old style exceptions.
3458 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
3459 mechanism into one function, if a runtime matcher is provided.
3461 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3463 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
3465 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
3467 * integrate.c (copy_decl_list): Fix typo.
3469 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3471 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
3474 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
3476 * version.c: Bump for snapshot.
3478 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
3480 * version.c: Bump for snapshot.
3482 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
3484 * version.c: Bump for snapshot.
3486 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3488 * invoke.texi (C Dialect Options): Put back missing @end itemize.
3490 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3492 * configure.in: remove usage of `!' to negate the result of a
3493 command; some common shells do not support it
3495 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3497 * configure.in: in sparc9-sol2 config, use 'if test' not
3499 * configure: Rebuilt.
3501 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
3503 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
3504 (CPP_CPU_DEFAULT_SPEC): Likewise.
3505 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
3506 for arch64 libfuncs.
3508 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
3511 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3513 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
3515 * collect2.c: Don't declare `sys_siglist' here.
3516 (my_strsignal): Prototype and define new function. Use it in
3517 place of `sys_siglist' hacks.
3519 * mips_tfile.c: Likewise.
3521 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
3522 (GCC_NEED_DECLARATIONS): Likewise.
3524 * system.h (strsignal): Prototype it, if necessary.
3525 (sys_siglist): Declare it, if necessary.
3527 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3529 * loop.c (move_movables): While removing insn sequences, preserve
3530 the next pointer of the most recently deleted insn when we skip
3533 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
3535 * objc/config-lang.in: Do not output the name of the selected
3536 thread file when building the front-end. The Makefile for the
3537 runtime library will do this.
3539 * objc/Make-lang.in: Do not build the runtime library or install
3540 the Objective C header files. The Makefile for the runtime
3541 library will do this.
3543 * objc/Makefile.in (all.indirect): Only build the front-end.
3544 (compiler): Rename to `frontend'.
3545 (obj-runtime): Remove target.
3546 (copy-headers): Likewise.
3547 (clean): No need to remove `libobjc.a' any longer.
3549 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
3551 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
3552 supported with -mcpu=xxx.
3554 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3556 * flow.c (mark_set_1): Recognize multi-register structure return
3557 values in CALL insns.
3558 (mark_used_regs): Likewise.
3559 (count_reg_sets_1): Likewise.
3560 (count_reg_references): Likewise.
3561 * rtlanal.c (note_stores): Likewise.
3562 (reg_overlap_mentioned_p): Likewise.
3563 * haifa-sched.c (check_live_1): Likewise.
3564 (update_live_1): Likewise.
3565 (sched_analyze_1): Likewise.
3566 (sched_note_set): Likewise.
3567 (birthing_insn_p): Likewise.
3568 (attach_deaths): Likewise.
3570 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
3573 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
3575 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
3577 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3579 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
3581 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3583 * configure.in: Add check for GAS subsection -1 support.
3584 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
3585 * configure config.in: Rebuilt.
3586 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
3587 SImode is subsection -1 works, else use DImode.
3588 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
3589 subsection -1 works.
3590 * config/sparc/sparc.c (sparc_output_addr_vec,
3591 sparc_output_addr_diff_vec): Use them if defined.
3593 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
3595 * tree.h (DECL_ORIGIN): New macro.
3596 * integrate.c (copy_and_set_decl_abstract_origin): New function.
3597 (copy_decl_list): Use it.
3598 (integrate_parm_decls): Likewise.
3599 (integrate_decl_tree): Likewise.
3600 * dwarf2out.c (decl_ultimate_origin): Simplify.
3601 * dwarfout.c (decl_ultimate_origin): Likewise.
3602 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
3603 (pushdecl): Likewise.
3605 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
3607 * config/rs6000/rs6000.c (output_epilog): Add Java support.
3609 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
3611 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
3613 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
3615 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
3616 empty or has a single entry.
3618 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
3619 before calling reg_to_stack.
3621 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
3623 * alpha.c (alphaev5_insn_pipe): Abort on default case.
3624 (alphaev5_next_group): Swallow CLOBBERs and USEs.
3626 * c-tree.h (warn_long_long): Declare it.
3628 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
3630 * emit-rtl.c (gen_lowpart_common): Disable optimization of
3631 initialized float-int union if the value is a NaN.
3633 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
3635 * c-lex.c (real_yylex): Don't warn about long long constants if
3636 we're allowing long long
3638 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3640 * except.h (current_function_eh_stub_label): Declare.
3641 (current_function_eh_old_stub_label): Declare.
3642 * function.h (struct function): New members eh_stub_label and
3644 * except.c (current_function_eh_stub_label): New variable.
3645 (current_function_eh_old_stub_label): New variable.
3646 (init_eh_for_function): Clear them.
3647 (save_eh_status): Save them.
3648 (restore_eh_status): Restore them.
3649 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
3650 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
3651 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
3652 make an edge from the block that contains it to the block starting
3653 with the label if this label is one of the eh stub labels.
3654 If eh stub labels exist, show they are reachable from the last block
3657 * reload1.c (reload): Break out several subroutines and make some
3659 (calculate_needs_all_insns): New function, broken out of reload.
3660 (calculate_needs): Likewise.
3661 (find_reload_regs): Likewise.
3662 (find_group): Likewise.
3663 (find_tworeg_group): Likewise.
3664 (something_needs_reloads): New global variable, formerly in reload.
3665 (something_needs_elimination): Likewise.
3666 (caller_save_spill_class): Likewise.
3667 (caller_save_group_size): Likewise.
3668 (max_needs): Likewise.
3669 (group_size): Likewise.
3670 (max_groups): Likewise.
3671 (max_nongroups): Likewise.
3672 (group_mode): Likewise.
3673 (max_needs_insn): Likewise.
3674 (max_groups_insn): Likewise.
3675 (max_nongroups_insn): Likewise.
3676 (failure): Likewise.
3678 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
3680 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
3682 * loop.c (load_mems): Copy rtx for output mem.
3684 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
3686 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
3687 mips1 or mips2 either.
3689 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
3691 * pa.c (pa_reorg): New marking scheme for jumps inside switch
3693 (pa_adjust_insn_length): Update to work with new marking scheme
3694 for jumps inside switch tables.
3695 * pa.md (switch_jump): Remove pattern.
3696 (jump): Handle jumps inside jump tables.
3698 * Makefile.in (profile.o): Depend on insn-config.h
3700 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
3702 * iris6.h (DWARF2_UNWIND_INFO): Undef.
3704 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3706 Add preliminary native sparcv9 Solaris support.
3707 * configure.in: Recognize sparv9-*-solaris2*
3708 * configure: rebuilt
3709 * config.sub: Recognize sparcv9 just like sparc64.
3710 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
3711 config/sparc/sol2-cn.asm: Macroize so it can be shared between
3712 32-bit and 64-bit Solaris systems.
3713 * config/sparc/t-sol2: Assemble those with cpp.
3714 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
3715 (*TF*_LIBCALL): If ARCH64 use V9 names.
3716 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
3718 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3720 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
3721 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
3723 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
3725 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
3726 to Pmode if CASE_VECTOR_MODE is something else.
3728 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
3730 * prefix.c (update_path): Correctly handle cases where PATH is
3731 a substring of the builtin prefix, but specifies a different
3734 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3736 * expr.c: Corrected comment about what MOVE_RATIO does.
3737 * config/alpha/alpha.h: Ditto.
3738 * config/1750a/1750a.h: Ditto.
3739 * config/clipper/clipper.h: Ditto.
3740 * config/i386/i386.h: Ditto.
3742 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
3744 * configure.in (m68k-next-nextstep3*): Use collect2.
3745 Similarly for x86 NeXT configurations.
3746 * configure: Rebuilt.
3748 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
3750 * configure.in: Don't assume srcdir is .../gcc
3751 * configure: Rebuilt.
3753 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
3755 * global.c: Update comments.
3756 (global_alloc): Assign allocation-numbers
3757 even for registers allocated by local_alloc in case
3758 they are later spilled and retry_global_alloc is called.
3759 (mark_reg_store, mark_reg_clobber,
3760 mark_reg_conflicts, mark_reg_death): Always record a
3761 conflict with a pseudo register even if it has been
3762 assigned to a hard register.
3763 (dump_conflicts): Don't list pseudo registers already assigned to
3764 a hard register as needing to be allocated, but do list their
3766 * local-alloc.c: Update comment.
3768 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
3770 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
3771 * configure: Rebuilt.
3773 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
3775 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
3777 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
3778 for all targets that set -msoft-float.
3780 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3782 * toplev.c (print_switch_values): Make static to match prototype.
3784 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
3786 * configure.in: If we are unable to find the "gnatbind" program,
3787 then do not configure the ada subdir.
3788 * configure: Rebuilt.
3790 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
3792 * version.c: Bump for snapshot.
3794 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
3796 * version.c: Bump for snapshot.
3798 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3800 * Makefile.in (toplev.o): Depend on $(EXPR_H).
3801 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
3803 * gansidecl.h: Define ATTRIBUTE_NORETURN.
3805 * genattrtab.c: Have insn-attrtab.c include toplev.h.
3807 * genextract.c: Have insn-extract.c include toplev.h.
3809 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
3811 * toplev.c: Include expr.h.
3812 (really_sorry, fancy_abort): Remove prototypes.
3813 (set_target_switch): Add argument in prototype.
3814 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
3815 (v_really_sorry): Likewise.
3816 (print_version, print_single_switch, print_switch_values): Make
3817 static and add prototype arguments.
3818 (decl_printable_name): Add prototype arguments.
3819 (lang_expand_expr_t): New typedef.
3820 (lang_expand_expr): Declare as a lang_expand_expr_t.
3821 (incomplete_decl_finalize_hook): Add prototype argument.
3822 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
3823 (botch): Likewise for variable `s'.
3824 (rest_of_type_compilation): Mark variables `type' and `toplev'
3825 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
3826 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
3827 (display_help): Make variable `i' an `unsigned long'.
3828 (main): Remove unused parameter `envp'.
3829 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
3830 Cast -1 when comparing it with a `size_t'.
3832 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
3833 prototype with ATTRIBUTE_NORETURN.
3834 (fatal_insn_not_found, fatal_insn, really_sorry,
3835 push_float_handler, pop_float_handler): Add prototypes.
3836 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
3837 (do_abort, botch): Add prototypes.
3839 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
3841 * final.c (final): If a label is reached only from a single jump,
3842 call NOTICE_UPDATE_CC on the jump and its predecessor before
3843 emitting the insn after the label.
3845 * i386.h: Add AMD K6 support.
3846 Change TARGET_* macros to use table lookup.
3847 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
3848 (ADJUST_COST): Change definition to call function in i386.c.
3849 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
3850 * i386.c: Add AMD K6 support.
3851 Add constants for feature tests used by TARGET_* macros.
3852 (split_di): If before reload, call gen_lowpart and gen_highpart.
3853 (x86_adjust_cost): New function.
3854 (put_jump_code): New function.
3855 (print_operand): New codes 'D' and 'd'.
3856 * i386.md: New insn types. New insn attribute "memory".
3857 Redefine scheduling parameters to use new types and add AMD K6
3858 support. Explicitly set type of most insns.
3859 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
3860 Pro and K6 prefer movl $1,reg to incl reg.
3861 (adddi3, subdi3): Set cc_status.
3862 (DImode shift patterns): Change label counters from HOST_WIDE_INT
3863 to int; x86 can't have more than 2^31 DImode shifts per file.
3864 (setcc): Combine all setcc patterns. Allow writing memory.
3865 Combine all jump patterns using match_operator.
3866 (*bzero): Name pattern. Emit mutliple stos instructions when that
3867 is faster than rep stos.
3868 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
3871 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
3873 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
3876 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
3878 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
3879 not whatever we're generating now.
3881 * alpha.c (set_frame_related_p, FRP): New.
3882 (alpha_expand_prologue): Mark frame related insns.
3883 (alpha_expand_epilogue): Likewise, but with a null FRP.
3884 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
3885 * alpha.md (exception_receiver): New.
3886 * alpha/crtbegin.asm (.eh_frame): New beginning.
3887 (__do_frame_setup, __do_frame_takedown): New.
3888 * alpha/crtend.asm (.eh_frame): New ending.
3889 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
3890 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
3891 (ASM_FILE_START): Don't emit .file for dwarf2.
3893 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
3894 * rtl.c (reg_note_name): Likewise.
3895 * rtl.texi (REG_NOTES): Likewise.
3896 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
3899 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
3901 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
3902 * i386.md (movsf, movdf, movxf): Validate memory address returned
3903 from force_const_mem. Kill useless REG_EQUAL setting code.
3905 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
3907 * m68k.md (zero_extendsidi2): Fix typo.
3909 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
3911 * configure.in: Removed references to the removed file
3912 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
3913 * arm*-*-netbsd* and ns32k-*-netbsd*.
3914 * config/i386/xm-netbsd.h: Removed unnecessary file.
3915 * config/m68k/xm-netbsd.h: Likewise.
3916 * config/sparc/xm-netbsd.h: Likewise.
3917 * config/mips/xm-netbsd.h: Likewise.
3919 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
3921 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
3922 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
3924 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
3925 for exact section attributions.
3927 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
3929 * i386/crtdll.h (CPP_PREDEFINES): Define.
3931 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
3933 * m68k.md (5200 movqi): Do not allow byte sized memory references
3935 * m68k.c (output_move_qimode): Do not use byte sized operations on
3938 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
3939 explicit rules for building. Similarly for alloca, vfprintf,
3940 choose-temp and mkstemp, getopt, getopt1, and obstack.
3941 (INCLUDES): Add $(srcdir)/../include.
3942 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
3943 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
3945 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
3947 * gcc.c (do_spec_1): [case 'o'] Account for
3948 lang_specific_extra_outfiles.
3949 (main): Correctly clear all slots in outfiles for
3950 lang_specific_extra_outfiles. Set input_file_number before
3951 calling lang_specific_pre_link.
3953 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
3955 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
3957 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3959 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
3961 (sparc_output_deferred_case_vectors): If no work to do, return.
3962 Fix thinko in Sept 1 change.
3964 1998-09-03 SL Baur <steve@altair.xemacs.org>
3966 * Makefile.in: add semicolon in BISON definition for portability.
3968 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
3970 * config/nextstep.c (handle_pragma): Correct name of third
3973 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
3975 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
3976 * config/m32r/m32r.h: Make register 17 be fixed.
3977 * config/m32r/m32r.c: Use SImode for cc operations.
3979 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
3981 * invoke.texi (Warning Options): Add -Wnon-template-friend
3984 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
3986 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
3988 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
3990 * rs6000.md (movsf): Disable explicit secondary-reload-like
3991 functionality if TARGET_POWERPC64.
3992 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
3995 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
3997 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
3998 and term.h from fixinc.wrap.
4000 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4002 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
4003 safe to include both string.h and strings.h together.
4004 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
4005 which headers to search for function declarations. Continue to
4006 prefer string.h over strings.h when both are not acceptable.
4008 * acconfig.h (STRING_WITH_STRINGS): Add stub.
4010 * configure.in: Call GCC_HEADER_STRING.
4012 * system.h: Test STRING_WITH_STRINGS when deciding which headers
4013 to include. Continue to prefer string.h over strings.h when both
4016 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4018 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
4019 not assume top 32-bits of symbolic addresses are zero if
4022 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
4024 * ginclude/va-alpha.h: Protect entire second portion of the
4025 file against double inclusion.
4027 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
4029 Added support for the Boehm's garbage collector.
4030 * configure.in: Handle --enable-objc-gc.
4031 * configure: Rebuilt.
4032 * Makefile.in (CHECK_TARGETS): Add check-objc.
4033 (check-objc): New rule.
4034 * objc/Make-lang.in: Build a different Objective-C library that
4035 runs with the Boehm's collector.
4036 * objc/encoding.c (objc_round_acc_size_for_types): New function.
4037 * objc/encoding.c: Correctly compute the size of compound types in
4038 the presence of bitfields. Skip the variable name of the type if
4039 any. Added support for long long.
4040 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
4041 (_F_GCINVISIBLE): New mask.
4042 * objc/gc.c: New file. Compute the type memory mask associated with
4043 a class based on the runtime information.
4044 * objc/misc.c: Added the hooks that use the Boehm's collector
4045 allocation functions.
4046 * objc/objc-act.c (build_class_template): Generate a new class
4047 member (gc_object_type) to hold the class' type memory mask.
4048 (build_shared_structure_initializer): Initialize the new member to
4050 (encode_complete_bitfield): New function. Generate the new
4052 (encode_field_decl): Generate the new encoding only for the GNU
4054 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
4056 (class_get_gc_object_type): New function to mark a pointer instance
4057 variable as a weak pointer.
4058 * objc/objc-features.texi: New file.
4059 * objc/objc.h (gc_object_type): New class member.
4060 * objc/objects.c (class_create_instance): Create a typed memory
4061 object when compiled with Boehm's collector support.
4062 * objc/sendmsg.c (__objc_init_install_dtable): Call
4063 __objc_send_initialize instead of setting the initialize flag.
4064 (__objc_send_initialize): Call __objc_generate_gc_type_description
4065 to generate the class type memory mask. Rewrite the code that
4066 sends the +initialize so that it is called only once (bug report
4067 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
4068 * testsuite/objc: New testsuite for Objective-C type encoding.
4069 * testsuite/lib/objc-torture.exp: New file.
4070 * testsuite/lib/objc.exp: New file.
4072 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
4074 * jump.c (jump_optimize): In if/then/else transformations, add
4075 another call to modified_between_p for the jump insn.
4077 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
4079 * fix-header.c (symlink): Treat like readlink.
4081 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4083 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
4086 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
4088 * config/nextstep.h: Update HANDLE_PRAGMA macro.
4089 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
4090 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
4092 * config/nextstep.c (handle_pragma): Take three arguments, as per
4093 the new HANDLE_PRAGMA macro specification.
4094 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
4095 per the new HANDLE_PRAGMA macro specification.
4096 * config/i960/i960.c (process_pragma): Take three arguments, as
4097 per the new HANDLE_PRAGMA macro specification.
4099 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
4101 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
4102 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
4103 if unknown pragmas are encountered.
4104 (handle_sysv_pragma): Interpret return code from
4105 handle_pragma_token (). Return success/failure indication rather
4106 than next unprocessed character.
4107 (pragma_getc): New function: retrieves characters from the
4108 input stream. Defined when HANDLE_PRAGMA is enabled.
4109 (pragma_ungetc): New function: replaces characters back into the
4110 input stream. Defined when HANDLE_PRAGMA is enabled.
4112 * c-pragma.c (handle_pragma_token): Return success/failure status
4115 * c-pragma.h: Change prototype of handle_pragma_token().
4117 * varasm.c: (handle_pragma_weak): Only create this function if
4118 HANDLE_PRAGMA_WEAK is defined.
4120 * c-common,c (decl_attributes): If defined call the expression
4121 contained within the INSERT_ATTRIBUTES macro before adding
4122 attributes to a decl.
4124 * tm.texi (HANDLE_PRAGMA): Document the new verion of
4125 HANDLE_PRAGMA, which takes three arguments.
4126 (INSERT_ATTRIBUTES): Document this new macro.
4128 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
4129 new INSERT_ATTRIBUTES macro.
4131 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4133 * config/sparc/sparc.md (movdf): Only generate special RTL for
4134 LABEL_REFs when PIC.
4135 (move_label_di): Remove
4136 (movdi_pic_label_ref, movdi_high_pic_label_ref,
4137 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
4138 references when PIC.
4139 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
4140 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
4141 output an .xword for all 64-bit cases.
4143 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4145 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
4146 alignment, use FUNCTION_BOUNDARY instead.
4147 (sparc_output_deferred_case_vectors): Likewise.
4149 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4151 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
4152 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
4154 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
4156 * alpha/va_list.h: New file.
4157 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
4159 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
4161 * NEWS: Add SCO Openserver and Unixware 7 notes.
4165 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
4167 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
4168 (record_constant_1): Handle RANGE_EXPR.
4170 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
4172 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
4173 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
4174 and NOTE_INSN_RANGE_END specially.
4175 (reemit_notes): Likewise.
4177 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4179 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
4180 (ultrasparc_sched_init): Remove unneeded &.
4182 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4184 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
4185 for m68020-60, to prevent the use of fintrz.
4187 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
4189 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
4191 * Makefile.in: Likewise.
4192 * configure: Regenerated.
4194 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
4196 * configure.in (gxx_include_dir): Changed to
4197 '${prefix}/include/g++'-${libstdcxx_interface}.
4198 * configure: Rebuilt.
4200 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
4202 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
4204 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
4205 *sequences* *below* which scalar moves will be used.
4207 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
4209 * collect2.c (mktemp): Delete unused declaration.
4211 * config/xm-netbsd.h: Remove unnecessary file.
4212 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
4213 file anymore, it is not needed.
4215 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
4217 * convert.c (convert_to_integer): Issue an error on conversions to
4220 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
4222 * Makefile.in: Add lang_tree_files and gencheck.h.
4223 * configure.in: Generate them.
4224 * gencheck.c: Include gencheck.h.
4226 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4228 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
4229 movdi_lo_sum_pic and movdi_high_pic and make visible.
4230 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
4231 emit these when Pmode is not SImode.
4232 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
4234 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
4236 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
4237 .linkonce directive after the first time.
4239 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
4241 * m68k.md (beq0_di): Generate correct (and more efficient) code when
4242 the clobbered operand overlaps with an input.
4243 (bne0_di): Similarly.
4245 * Makefile.in (INSTALL): Remove "--no-header" argument.
4247 * NEWS: Various updates.
4249 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4251 * config/sparc/sparc.c (arith_operand, const64_operand,
4252 const64_high_operand, arith_double_4096_operand): Mark mode as
4254 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
4256 (sparc_emit_set_const64): Remove unused variable i.
4257 (sparc_splitdi_legitimate): Likewise for addr_part.
4258 (ultra_code_from_mask): Likewise for mask.
4259 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
4260 reverse return values so it matches usage and comments.
4261 (ultra_flush_pipeline): Likewise.
4262 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
4263 this_type, and allow loads and stores of differing FP modes as
4264 they do not create a conflict.
4265 (ultra_find_type): Initialize fpmode to SFmode, fix
4266 parenthesization thinkos in large conditional.
4267 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
4268 Init free_slot_mask after ultra_cur_hist is reset, not before.
4269 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
4270 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
4271 use ultra_flush_pipeline instead, then re-init group pointer.
4272 Fix statement with no effect. If no progress made in, and no
4273 instructions scheduled at all, advance to new pipeline cycle else
4274 we get into an endless loop.
4275 (ultrasparc_adjust_cost): Remove previous arg.
4276 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
4278 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
4280 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
4281 code. Use reg_overlap_mentioned_p to detect when source and
4282 destination overlap.
4283 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
4285 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
4287 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
4288 COMPARISON_VAL, into invariant_p.
4290 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4292 * regmove.c (regclass_compatible_p): New function.
4293 (regmove_optimize): Use it.
4295 Use NREGS parameter insted of calling max_reg_num.
4297 (fixup_match_1): Don't use code = MINUS when later tieing with
4298 a hard register is likely.
4300 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4302 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
4303 COMPARISON_VAL was normalized.
4305 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
4307 * loop.c (check_dbra_loop): The loop ending comparison value
4308 must be an invariant or we can not reverse the loop.
4310 * loop.c (scan_loop): Count down from max_reg_num - 1 to
4311 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
4313 (load_mems_and_recount_loop_regs_set): Likewise.
4315 * i386.c (print_operand): Remove obsolete 'c' docs.
4317 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
4319 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
4320 * frame.c (init_object_mutex): New function.
4321 (init_object_mutex_once): Likewise.
4322 (find_fde): Call it.
4323 (__register_frame_info): Likewise.
4324 (__register_frame_info_table): Likewise.
4325 (__deregister_frame_info): Likewise.
4327 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
4329 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
4331 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4333 * loop.c (check_dbra_loop): Enable code for reversal
4334 of some loops without a known constant loop end.
4336 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
4338 * haifa-sched.c (last_clock_var): New.
4339 (schedule_block): Initialize it.
4340 (schedule_insn): Use it to fill insn modes with issue information.
4342 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
4343 Tag trapb and next insn with TImode.
4344 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
4345 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
4346 Invoke alphaev5_align_insns as appropriate.
4347 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
4348 (MD_SCHED_VARIABLE_ISSUE): New.
4349 * alpha.md (attr type): Add multi.
4350 (define_asm_attributes): New.
4351 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
4352 (arg_home): Likewise.
4353 (fnop, unop, realign): New.
4355 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
4357 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
4358 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
4360 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
4361 (rs6000-ibm-aix4.[12]*): Likewise.
4362 * configure: Regnerate.
4364 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
4366 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
4367 already contains the return address.
4369 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
4371 * calls.c (expand_call): Use bitfield instructions to extract/deposit
4372 word sized hunks when loading unaligned args into registers.
4374 * haifa-sched.c (sched_analyze_insn): Only create scheduling
4375 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
4377 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
4379 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4381 * loop.c (check_dbra_loop): Add some code that would allow reversal
4382 of some loops without a known constant loop end if it were enabled.
4384 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
4386 * mips.md (lshrsi3_internal2+2): Fix type-o.
4388 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4390 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
4391 correctly with regards to stdio.h.
4393 * calls.c: Remove stdarg.h/varargs.h.
4396 * combine.c: Likewise.
4397 * cpperror.c: Likewise.
4398 * cpplib.c: Likewise.
4399 * cpplib.h: Likewise.
4400 * doprint.c: Likewise.
4401 * emit-rtl.c: Likewise.
4402 * final.c: Likewise.
4403 * fix-header.c: Likewise.
4405 * genattr.c: Likewise.
4406 * genattrtab.c: Likewise.
4407 * gencodes.c: Likewise.
4408 * genconfig.c: Likewise.
4409 * genemit.c: Likewise.
4410 * genextract.c: Likewise.
4411 * genflags.c: Likewise.
4412 * genopinit.c: Likewise.
4413 * genoutput.c: Likewise.
4414 * genpeep.c: Likewise.
4415 * genrecog.c: Likewise.
4416 * mips-tfile.c: Likewise.
4417 * prefix.c: Likewise.
4418 * protoize.c: Likewise.
4419 * regmove.c: Likewise.
4420 * toplev.c: Likewise.
4423 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4425 * config/sparc/sparc.c (sparc_override_options): If not
4426 TARGET_FPU, turn off TARGET_VIS.
4427 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
4428 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
4429 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
4430 (movdi_insn_sp64): Add VIS fzero alternative.
4431 (clear_sf, clear_df): New VIS patterns.
4432 (movsf, movdf expanders): Allow fp_zero_operand flat out when
4434 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
4436 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
4438 * loop.c (n_times_set, n_times_used, may_not_optimize,
4439 reg_single_usage): Convert to varrays. All uses changed.
4440 (insert_loop_mem): Return a value.
4441 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
4442 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
4445 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
4448 * configure.in: Do not set thread_file to "irix" since no such
4451 * sparc.md (float abs/neg splits): Check reload_completed before
4452 calling alter_subreg.
4454 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4456 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
4458 * config/sparc/sparc.h: Declare it.
4459 * config/sparc/sparc.md (float abs/neg splits): Use it.
4460 (all other splits): Handle SUBREGs properly where necessary.
4461 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
4463 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
4465 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
4466 an insn on the unfilled_slots_list that has no delay slots.
4467 (fill_eager_delay_slots): Similarly.
4469 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
4471 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
4472 as an ordinary operand.
4474 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
4476 * tree.c (valid_machine_attribute): Don't apply attributes to both
4479 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
4481 * reload.c (operands_match_p): Handle rtvecs.
4483 * i386.c (legitimate_pic_address_disp_p): New.
4484 (legitimate_address_p): Use it.
4485 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
4486 Handle constant pool symbols just like statics.
4487 (emit_pic_move): Use Pmode not SImode for clarity.
4488 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
4489 [UNSPEC]: New, handling what we killed above.
4490 [PLUS]: Detect and abort on invalid symbol arithmetic.
4491 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
4493 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
4495 * alias.c: Include output.h.
4496 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
4497 different if we're in a varargs function.
4498 * Makefile.in (alias.o): Depend on output.h
4500 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4502 * sh.h (GIV_SORT_CRITERION): Delete.
4504 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
4506 * regclass.c (regclass): Use xmalloc/free instead of alloca.
4507 * stupid.c (stupid_life_analysis): Ditto.
4508 * reload1.c (reload): Ditto.
4510 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4512 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
4513 arith_double_4096_operand, arith_double_add_operand): New
4515 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
4516 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
4517 them to transform add/sub 4096 into add/sub -4096.
4519 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4521 * loop.c (scan_loop): Allocate some slop to handle pseudos
4522 generated by move_movables.
4523 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
4526 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
4528 * tree.def (DECL_RESULT): Correct documentation.
4530 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4532 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
4533 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
4534 conflicts will all RELOAD_FOR_OUTPUT reloads.
4536 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
4537 loads the function result, substitute with a USE.
4539 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4541 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
4542 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
4543 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
4544 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
4545 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
4546 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
4548 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
4549 'o' to 'm' for GPR variant constraints.
4551 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
4553 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
4555 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
4557 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
4558 when the source and destination overlap.
4560 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
4561 clash with global type.
4563 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
4565 * fixinc.irix: Add curses.h handling from fixinc.wrap.
4567 * c-common.c (combine_strings): Also set TREE_READONLY.
4568 Change warn_write_strings to flag_const_strings.
4569 * c-decl.c, c-tree.h: Likewise.
4571 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4573 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
4574 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
4575 sequence, use SET/IOR instead so CSE can see it.
4576 * config/sparc/sparc.md (movhi_const64_special,
4577 movsi_const64_special): New patterns necessitated by that change.
4578 (movhi_high): Remove.
4579 (movhi_lo_sum): Change to match an IOR.
4580 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
4581 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
4582 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
4583 (movdf splits): Allow when not V9 or when not ARCH64 and integer
4584 registers are involved.
4585 (snesi_zero_extend split): Remove reload_completed test.
4586 (unnamed plus and minus zero_extend sidi splits): Add it.
4588 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
4590 * extend.texi: Remove description of extension to explicit
4591 instantiation that is now endorsed by standard C++.
4593 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4595 * config/arc/arc.c (arc_initialize_pic): Remove.
4596 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
4597 nothing on any platform and is invoked by no-one, it does not even
4598 appear in the documentation.
4599 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
4600 * config/sparc/sparc.c (initialize_pic): Likewise.
4601 (find_addr_reg): Remove this as well, no longer referenced after
4604 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
4606 * recog.c (validate_replace_rtx_group): New function.
4607 * recog.h (validate_replace_rtx_group): Declare it.
4608 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
4609 the entire group of substitutions.
4611 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
4613 * loop.c (load_mems): Fix initializers.
4615 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4617 * config/sparc/sparc.md (TFmode splits): Handle destination
4618 registers being referenced in the address correctly.
4620 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
4621 TREE_UNSIGNED, when bitsize of type's mode is larger than
4622 HOST_BITS_PER_WIDE_INT.
4624 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4626 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
4627 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
4628 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
4630 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
4633 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
4635 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
4636 * h8300.h (TINY_DATA_NAME_P): Likewise.
4637 (STRIP_NAME_ENCODING): Handle '&'.
4639 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
4640 register (it could be accessed via an outer SUBREG).
4641 (REG_OK_FOR_BASE_P): Likewwise.
4642 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
4644 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
4647 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
4649 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4651 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
4652 must be offsettable so the splits can be made.
4654 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
4656 * config/i386/winnt.c: Include system.h, not stdio.h to get
4657 sys/param.h pulled in before rtl.h in case the system defines MIN
4660 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
4662 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
4664 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
4666 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
4668 * cpplib.c (cpp_define): Handle macros with parameters.
4670 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4672 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
4673 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
4674 and DImode 64-bit. Use llong for minimal-toc SFmode and
4675 SYMBOL_REF / LABEL_REF 64-bit.
4676 (output_function_profiler): Use llong for profiler label and ld to
4677 load 64-bit label address.
4679 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
4681 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
4684 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
4686 * version.c: Bump for snapshot.
4688 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
4690 * version.c: Bump for snapshot.
4692 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
4694 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
4696 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
4698 * tm.texi (Misc): Fix typo "teh".
4700 * tm.texi (PIC): Fix typo "PPIC".
4702 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
4703 effect when -O2 and higher.
4704 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
4706 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
4708 * regclass.c: Changed register set documentation to be consistent
4711 * final.c (final_start_function) Removed redundant test for
4714 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
4716 * rtl.h (rtx_function): New type.
4717 (for_each_rtx): New function.
4718 * rtlanal.c (for_each_rtx): Define it.
4720 * recog.c (change_t): New type.
4721 (change_objects, change_old_codes, change_locs, change_olds):
4723 (changes): New variable.
4724 (validate_change): Dynamically allocate room for more changes, if
4725 necessary. Uses changes array instead of change_objects, etc.
4726 (apply_change_group): Use changes array instead of
4727 change_objects, etc.
4729 * loop.c (loop_mem_info): New type.
4730 (loop_mems): New variable.
4731 (loop_mems_idx): Likewise.
4732 (looop_mems_allocated): Likewise.
4733 (scan_loop): Remove nregs parameter.
4734 (next_insn_in_loop): New function.
4735 (load_mems_and_recount_loop_regs_set): Likewise.
4736 (load_mems): Likewise.
4737 (insert_loop_mem): Likewise.
4738 (replace_loop_mem): Likewise.
4739 (replace_label): Likewise.
4740 (INSN_IN_RANGE_P): New macro.
4741 (loop_optimize): Don't pass max_reg_num() to scan_loop.
4742 (scan_loop): Remove nregs parameter, compute it after any new
4743 registers are created by load_mems. Use INSN_IN_RANGE_P and
4744 next_insn_in_loop rather than expanding them inline. Call
4745 load_mems to load memory into pseudos, if appropriate.
4746 (prescan_loop): Figure out whether or not there are jumps from the
4747 loop to targets other than the label immediately following the
4748 loop. Call insert_loop_mem to notice all the MEMs used in the
4749 loop, if it could be safe to pull MEMs into REGs for the duration
4751 (strength_reduce): Use next_insn_in_loop. Tweak comments.
4753 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
4755 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
4757 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4759 * config/sparc/sparc.c (finalize_pic): Check for the correct
4760 nonlocal_goto_receiver UNSPEC number.
4761 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
4762 making note of this dependency existing in sparc.c
4763 (negtf2_notv9 split): Give NEG SFmode.
4764 (negsf2): Fix insn output string.
4766 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
4768 * c-common.c (decl_attributes): Issue an error if the argument
4769 to alias is not a string.
4771 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
4773 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
4774 pending memory flush list.
4776 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
4778 (try_combine): Allow combining insns with REG_LIBCALL notes.
4780 * expr.c (emit_block_move): Do not call memcpy as a libcall
4781 instead build up a CALL_EXPR and call it like any other
4783 (clear_storage): Similarly for memset.
4785 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
4788 * Makefile.in (cplus-dem.o): Provide explicit rules for building
4791 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
4792 and REG_LIVE_LENGTH as successful substitutions are made.
4794 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4796 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
4797 statement after end of loop label.
4799 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4801 * config/sparc/sparc.c (ultra_types_avail): New variable.
4802 (ultra_build_types_avail): New function to record mask of insn
4803 types in ready list at this cycle.
4804 (ultrasparc_sched_reorder): Call it.
4805 (ultra_find_type): Use it to quicken the search. Also simplif
4806 dependency check, don't use rtx_equal_p because we know exactly
4807 what we are looking for.
4809 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
4811 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
4812 for architecture v4.
4814 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4816 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
4818 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
4819 movdf_const_intreg and helper splits): New patterns to move float
4820 constants into integer registers.
4821 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
4824 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
4827 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
4829 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
4831 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
4832 a BASE_REGS register is needed as an intermediate when copying
4833 a symbolic value into any register class other than BASE_REGS.
4835 * expr.c (move_by_pieces): No longer static. Remove prototype.
4836 * rtl.h (move_by_pieces): Add extern prototype.
4837 * mips.c (expand_block_move): Handle aligned straight line copy by
4838 calling move_by_pieces.
4840 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
4843 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
4845 * stmt.c (expand_end_loop): Tidy. Allow unconditional
4846 jumps out of the loop to be treated as part of the exit test.
4848 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4849 Jeff Law <law@cygnus.com>
4851 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
4852 * cplus-dem.c: Delete.
4854 * Makefile.in (fold-const.o): depend on $(RTL_H).
4856 * fold-const.c: Include rtl.h to get the prototype for
4857 `set_identifier_local_value'.
4859 * loop.c (express_from_1): Remove unused variable `tmp'.
4860 (combine_givs): cast the first argument of bzero to char *.
4862 * toplev.c (display_help): Remove unused variable `looking_for_start'.
4864 * c-decl.c (init_decl_processing): Remove unneeded &.
4866 * alpha.h (alpha_initialize_trampoline): Provide prototype.
4868 * except.c (set_exception_lang_code, set_exception_version_code):
4869 Change parameter from `short' to `int' to avoid using a gcc
4872 * except.h (set_exception_lang_code, set_exception_version_code):
4873 Likewise for prototypes.
4875 * flow.c (count_reg_references): Remove unused variables `regno'
4878 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
4880 * prefix.c (translate_name): Cast the result of `alloca'.
4882 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
4884 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4886 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
4888 (valid_dbcc_comparison_p): Mark mode argument as unused.
4889 (symbolic_operand): Likewise.
4890 (legitimize_pic_address): Likewise.
4891 (const_uint32_operand): Likewise.
4892 (const_sint32_operand): Likewise.
4893 * sched.c [!INSN_SCHEDULING]: Define only dummy function
4894 schedule_insns and comment out rest of file.
4896 * m68k.c (output_move_simode_const): Use subl to move a zero into an
4898 (output_move_[hq]imode): Likewise.
4900 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
4902 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
4903 * invoke.texi: Corresponding changes.
4905 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
4907 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
4909 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4911 * config/sparc/sparc.c (ultra_code_from_mask,
4912 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
4913 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
4914 ultrasparc_sched_init, ultrasparc_variable_issue,
4915 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
4916 functions to describe UltraSPARC pipeline exactly to Haifa.
4917 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
4918 as there is nothing the scheduler can do about it. Indicate that
4919 REG_DEP_OUTPUT's collide. Fixup formatting.
4920 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
4921 divide costs on Ultra for DImode.
4922 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
4924 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
4925 ieuN and add call_no_delay_slot to type list.
4926 (cti function unit): New unit for branches on UltraSPARC.
4927 (subx/addx insns): Set type to misc.
4928 (sidi zero/sign extension insns on arch64): Set type to shift.
4929 (sign_extendhidi2_insn): Set type to sload.
4931 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
4933 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
4934 (output_epilog): Use if != 0 for offset.
4935 (rs6000_fatal_bad_address): Prepare for Intl.
4936 * rs6000.h (rs6000_fatal_bad_address): Declare.
4937 * rs6000.md (movsfcc, movdfcc): Use else if.
4938 (elf_high): Use {liu|lis}.
4939 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
4940 (movsi): Use rs6000_fatal_bad_address.
4942 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
4944 * reload.c (find_equiv_reg): Reject equivalences separated
4945 by a volatile instruction.
4947 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
4949 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
4951 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
4953 * alpha.md (movsicc): Fix mode mismatch.
4955 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
4957 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
4959 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
4961 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4963 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
4964 write-only modifier from operand 1 constraint.
4966 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4968 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
4969 emitting a XOR of -1 at the end, emit a NOT instead for combine's
4971 (sparc_emit_set_const64): Likewise, also when computing trailing
4972 bits do not negate low_bits and make fast_int an int.
4974 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
4976 * loop.c (add_label_notes): Do not ignore references to labels
4977 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
4978 * gcse.c (add_label_notes): Similarly.
4980 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
4982 * m68k.md (adddi_dilshr32): One of the operands must be a register.
4983 (adddi_dishl32): Similarly.
4985 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
4987 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
4988 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
4989 * cse.c (cse_basic_block): Add parens to shut up warnings.
4991 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4993 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
4994 sparc_emit_set_const64_longway, const64_is_2insns,
4995 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
4996 in 64-bit constant formation.
4997 * config/sparc/sparc.md (snesi_zero_extend split): Generate
4998 rtl for addx not subx.
4999 (define_insn movdi_const64_special): Make available even when
5000 HOST_BITS_PER_WIDE_INT is not 64.
5001 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
5002 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
5003 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
5004 instances of operand 1 inside a QI subreg.
5005 (xordi3_sp64_dbl): Remove '%' constraint for op1.
5006 (one_cmpldi2_sp64): Fix output string.
5007 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
5009 (unnamed arch64 ashift DI): Truncate shift count if greater than
5012 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5014 * expr.c (store_expr): Don't optimize away load-store pair
5015 when either source or destination have a side effect.
5017 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
5019 * genrecog.c (add_to_sequence): Fatal error if the modes of the
5020 operands of SET are incompatible.
5022 * alpha.md: Fix max and min patterns so modes of SET operands match.
5024 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
5026 * configure.in: Avoid [[ by using test and changequote.
5027 * configure: Rebuild.
5029 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5031 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
5033 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
5034 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
5035 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
5036 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
5037 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
5038 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
5039 Fix mismatching modes in SET operands.
5040 (conditional move patterns): Fix formatting.
5041 (unnamed subx arch64 pattern): Remove duplicate insn.
5043 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5045 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5046 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
5047 (input_operand): Fixup test for what we accept for constant
5049 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
5051 (safe_constDI): Remove.
5052 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
5053 gen_safe_XOR64): New functions.
5054 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
5055 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
5057 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
5058 available when HOST_BITS_PER_WIDE_INT is not 64.
5059 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
5060 move before movdi_insn_sp64 pattern.
5061 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
5062 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
5063 symbolic_operand as predicate for second operand.
5064 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
5065 expander): Give set VOIDmode.
5067 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
5069 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
5071 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
5073 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
5075 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
5077 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
5079 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
5081 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
5083 * install.texi: Various SCO OpenServer tweaks.
5085 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
5087 * reload1.c (eliminate_regs_in_insn): Handle another case when
5088 eliminating the frame pointer to the hard frame pointer. Add
5089 missing ep->to_rtx check to one existing case.
5091 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
5093 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
5095 * tree.h: De-conditionalize init_priority code.
5097 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
5098 * collect2.c (NM_FLAGS): Change from -p to -n.
5100 * configure.in: Turn on collect2 for mipstx39-elf.
5101 Handle use_collect2=no properly.
5103 * c-common.c: De-conditionalize init_priority code.
5104 * collect2.c (extract_init_priority, sort_ids): New fns.
5105 (main): Call sort_ids.
5106 Move sequence_number to file scope.
5108 * configure.in: Handle --enable-init-priority.
5109 * c-common.c (attrs): Add A_INIT_PRIORITY.
5110 (init_attributes, decl_attributes): Likewise.
5111 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
5112 * tree.c (get_file_function_name_long): Split out...
5113 (get_file_function_name): ...from here.
5115 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
5117 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
5120 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
5122 * toplev.c (display_help): Add braces to shut up warnings.
5123 * tree.c (simple_cst_equal): Likewise.
5125 * fold-const.c (non_lvalue): Don't deal with null pointer
5127 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5129 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
5130 of any size to a pointer.
5132 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
5134 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
5136 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
5138 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
5139 which will be saved.
5140 * mn10300.md (prologue insn): Only save registers which need saving.
5141 (epilogue insn): Similarly.
5143 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
5146 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
5148 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
5149 VAR_DECL's in gp addressable sections.
5151 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
5153 * sparc.c: Change return <exp> to <exp>; return; in functions
5155 * sparc.md: Add empty semicolon statement after final label in
5158 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5160 * config/sparc/sparc.md (define_insn addx_extend): Rename to
5161 addx_extend_sp64, only allow when TARGET_ARCH64.
5162 (define_insn addx_extend_sp32 and split): Version that works when
5164 (define_insn subx_extend): Likewise.
5165 (define_split adddi3 and subdi3 with zero extension): Fixup and
5166 correct bugs when not TARGET_ARCH64.
5168 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
5170 * except.c (set_exception_lang_code, set_exception_version_code):
5171 Use prototype-style definition if __STDC__, to match declaration
5174 * genemit.c: Change FAIL and DONE macros not to use loops.
5176 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
5178 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
5179 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
5181 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
5183 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
5185 * README.g77: Update from Craig.
5187 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5189 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
5191 (safe_constDI sparc_emit_set_const64_quick1,
5192 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5193 analyze_64bit_constant, const64_is_2insns,
5194 create_simple_focus_bits): Fix some bugs when compiled on real
5196 (function_arg_record_value_3, function_arg_record_value_2,
5197 function_arg_record_value): Add fully prototyped forward decls.
5198 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
5199 to cmpsi_insn and use on both 64 and 32 bit targets.
5200 (define_insn cmpsi_insn_sp64): Remove.
5201 (define_expand zero_extendsidi2): Allow for 32-bit target too.
5202 (define_insn zero_extendsidi2_insn): Rename to
5203 zero_extendsidi2_insn_sp64.
5204 (define_insn zero_extendsidi2_insn_sp32): New pattern and
5205 assosciated forced split for it.
5207 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5209 * config/sparc/sparc.h: Declare them.
5210 (PREDICATE_CODES): Add them.
5211 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
5212 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
5214 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
5216 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
5217 in v9 case as the latter makes the Solaris assembler crash.
5219 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5221 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
5222 for TFmode when !v9. We require offsettable memory addresses.
5223 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
5224 DFmode register number conversions.
5225 * config/sparc/sparc.md (define_split DFmode moves): If register
5226 is a SUBREG do alter_subreg on it before using.
5227 (define_expand movtf): Fixup comment about alignment on v9.
5228 (define_split TFmode moves): Don't use gen_{high,low}part, create
5229 explicit SUBREGs instead.
5231 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
5233 * Makefile.in (mbchar.o): Depend on mbchar.c.
5235 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5236 Richard Henderson <rth@cygnus.com>
5238 Rewrite Sparc backend for better code generation and
5239 improved sparc64 support.
5240 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
5242 * config/sparc/sysv4.h: Likewise.
5243 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
5244 move_operand, v8plus_regcmp_op, emit_move_sequence,
5245 singlemove_string, doublemove_string, mem_aligned_8,
5246 output_move_double, output_move_quad, output_fp_move_double,
5247 move_quad_direction, output_fp_move_quad, output_scc_insn):
5249 (small_int_or_double): New predicate.
5250 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
5251 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
5252 old pic_{sethi,lo_sum}_si patterns.
5253 (mem_min_alignment): New generic function to replace
5254 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
5255 available and can test for arbitrary alignments. All callers
5257 (save_regs, restore_regs, build_big_number,
5258 output_function_prologue, output_cbranch, output_return,
5259 sparc_flat_save_restore, sparc_flat_output_function_prologue,
5260 sparc_flat_output_function_epilogue): Prettify
5262 (output_function_epilogue): Likewise and add code to output
5263 deferred case vectors.
5264 (output_v9branch): Likewise, add new arg INSN and use it to tack
5265 on branch prediction settings. All callers changed.
5266 (print_operand): Likewise and output %l44 for LO_SUMs when
5268 (sparc_splitdi_legitimate): New function to make sure DImode
5269 splits can be run properly when !arch64.
5270 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
5271 Reformat example code in comments.
5272 (set_extends): Remove UNSPEC/v8plus_clear_high case.
5273 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
5274 of deferred case vectors we need to output.
5275 (sparc_defer_case_vector): Record a case vector.
5276 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
5277 sparc_output_deferred_case_vectors): New functions to output them.
5278 (sparc_emit_set_const32): New function to form 32-bit constants in
5279 registers when that requires more than one instruction.
5280 (safe_constDI, sparc_emit_set_const64_quick1,
5281 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5282 analyze_64bit_constant, const64_is_2insns,
5283 create_simple_focus_bits, sparc_emit_set_const64): New functions
5284 which do the same for 64-bit constants when arch64.
5285 (sparc_emit_set_symbolic_const64): New function to emit address
5286 loading for all code models on v9.
5287 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
5288 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
5289 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
5290 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
5291 inaccuracies in comments, add symbolic and text_segment operands
5292 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
5293 GENERAL_REGS in these cases as a temp REG is needed to load these
5294 addresses into a register properly.
5295 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
5297 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
5298 quads are guarenteed to have 16-byte alignment.
5299 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
5300 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
5301 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
5302 deferred case vector implementation.
5303 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
5304 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
5305 Generate "internal label - label" instead of "label - 1b".
5306 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
5307 (PREDICATE_CODES): Remove sparc_operand, move_operand,
5308 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
5310 (doublemove_string, output_block_move, output_fp_move_double,
5311 output_fp_move_quad, output_move_double, output_move_quad,
5312 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
5313 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
5314 (sparc_emit_set_const32, sparc_emit_set_const64,
5315 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
5316 mem_min_alignment, small_int_or_double): Add externs.
5317 * config/sparc/sparc.md: Document the many uses of UNSPEC and
5318 UNSPEC_VOLATILE in this backend.
5319 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
5320 unary to types which execute in it.
5321 (define_function_unit ieu_shift): Rename to ieu0.
5322 (define_function_unit ieu1): New, executes compare, call, and
5323 uncond_branch type insns.
5324 (define_function_units for type fdivs, fdivd, fsqrt): These
5325 execute in the fpu multiply unit not the adder on UltraSparc.
5326 (define_expand cmpdi): Disallow TARGET_V8PLUS.
5327 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
5328 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
5329 allows the arith_double_operand predicate and rHI constraint when
5331 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
5332 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
5333 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
5334 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
5335 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
5336 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
5337 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
5338 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
5339 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
5340 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
5341 sign_extendqihi2_insn, sign_extendqisi2_insn,
5342 sign_extendqidi2_insn, sign_extendhidi2_insn,
5343 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
5344 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
5345 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
5346 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
5347 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
5348 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
5349 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
5350 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
5351 smulsi3_highpart_v8plus, unnamed subreg mult,
5352 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
5353 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
5354 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
5355 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
5356 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
5357 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
5358 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
5359 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
5360 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
5361 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
5362 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
5363 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
5364 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
5365 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
5366 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
5367 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
5368 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
5369 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
5370 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
5371 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
5372 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
5373 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
5374 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
5375 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
5376 call_address_untyped_struct_value_sp32,
5377 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
5378 call_value_symbolic_sp32, call_value_address_sp64,
5379 call_value_symbolic_sp64, branch_sp32, branch_sp64,
5380 flush_register_windows, goto_handler_and_restore,
5381 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
5382 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
5383 return_addsi, return_di, return_adddi, return_sf, all call+jump
5384 peepholes, trap, unnamed trap insns): Prettify output strings.
5385 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
5386 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
5387 Likewise and force + implement splits for integer cases.
5388 (define_insn return_sf_no_fpu): Likewise and allow to match when
5389 no-fpu because of our subreg SFmode splits.
5390 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
5391 zero_extendqidi2_insn, zero_extendhidi2_insn,
5392 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
5393 input_operand for second operand.
5394 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
5395 reg_or_0_operand for operand 2 so new splits can use it.
5396 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
5397 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
5399 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
5400 CONST_DOUBLEs for operand 2.
5401 (define_insn move_label_di): Likewise and label distance
5402 optimization because it no longer works with new deferred case
5403 vector scheme. To be revisited.
5404 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
5405 and allow reg_or_0_operand and J constraint for second operand.
5406 (define_insn jump): Set branch predict taken on V9.
5407 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
5408 new deferred case vector scheme.
5409 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
5410 (define_insn negdi2_sp32): Force + implement splits.
5411 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
5412 one_cmplsi2_not_liveg0 respectively, and create expander of original
5413 names which emit special rtl for TARGET_LIVE_G0.
5414 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
5415 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
5416 gen_compare_reg, FAIL instead.
5417 (define_insn sgtu, sleu): Likewise and check gen_s*() return
5418 values when trying to reverse condition codes, if they FAIL then
5420 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
5421 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
5422 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
5423 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
5424 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
5425 set output string to # to indicate they are mandatory splits.
5426 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
5427 pic_sethi_di, move_pic_label_si): Remove.
5428 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
5429 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
5431 (define_expand movsi_pic_label_ref, define_insn
5432 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
5433 expander and insns to handle PIC label references and deferred
5435 (define_insn get_pc_via_rdpc): Comment out as it is no longer
5437 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
5438 Rewrite to not use emit_move_sequence, make use of new constant
5439 formation code, and new splits for all multi-insn cases.
5440 (define_insn movqi_insn): Remove sethi case, it can never happen.
5441 Use reg_or_zero_operand instead of const0_rtx explicit test,
5442 use input_operand instead of move_operand for source, and use
5443 general_operand now for dest.
5444 (define_insn movhi_insn): Similar but leave sethi case.
5445 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
5446 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
5447 movhi_lo_sum respectively, prettify output string.
5448 (define_insn movsi_zero_liveg0): New pattern to put zero into a
5449 register when needed on TARGET_LIVE_G0.
5450 (define_insn movsi_insn): Use general_operand and input_operand
5451 for dest and src respectively. Simplify applicability test.
5452 Prettify output strings, and add clr alternative for J
5454 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
5455 deprecated std and reg-reg DI moves): Remove and...
5456 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
5457 implementation which uses forced splits for all non-single insn
5459 (define_split DI move cases on !arch64): New splits to handle all
5460 situations of 64-bit double register DImode on 32bit, and
5461 unaligned registers and memory addresses for all subtargets.
5462 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
5464 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
5465 input_operand for dest and src respectively, prettify output
5467 (define_insn movdf_insn, movdf_no_e_insn, store_df,
5468 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
5470 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
5471 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
5472 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
5473 movtf_no_e_insn_sp64) Replace with new
5474 implementation which uses forced splits for all non-single insn
5476 (define_split DF move cases): New splits in similar vein to DI
5478 (define_insn sethi_di_medlow, sethi_di_medium_pic,
5479 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
5480 movdi_sp64_insn): Remove old v9 code model and constant loading
5482 (define_insn pic_lo_sum_di, pic_sethi_di,
5483 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
5484 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
5485 embmedany_sethi, embmedany_losum, embmedany_brsum,
5486 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
5487 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
5488 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
5489 scheme, using unspecs, secondary reloads, and one to one sparc
5490 insn to rtl insn mapping for better scheduling and code gen.
5491 (define_expand reload_indi, reload_outdi): Reload helpers for
5492 MEDANY and EMBMEDANY symbol address loading cases which require a
5494 (define_expand movsicc): Remove v8plus_regcmp cases.
5495 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
5496 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
5497 cmp_diqi_trunc_set): New patterns used by some of the new scc
5499 (define_insn xordi3_sp64_dbl): New pattern used for constant
5500 formation when crossing from 32-bit targets.
5501 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
5503 (define_insn addx, subx): Make visible and prettify.
5504 (define_insn adddi3_insn_sp32): Likewise and force split.
5505 (define_insn addx_extend, subx_extend, unnamed): New patterns for
5506 64bit scc split usage.
5507 (define_insn unnamed plusDI zero_extend, unnamed minusDI
5508 zero_extend, subdi3): Force and implement splits.
5510 * final.c (final_scan_insn): Don't output labels if target
5511 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
5514 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
5515 don't forget to walk inside SEQUENCESs too as these are what the
5516 delay slot scheduler will create.
5518 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
5520 * alpha.md (extxl+1,+2): New patterns to work around
5523 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
5525 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
5526 caused bad assembly code to be generated.
5528 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
5530 * netbsd.h: Fix typo.
5532 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
5534 * config.sub: Fix typo.
5536 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
5538 * invoke.texi (Environment Variables): Typo: Change "ascpects"
5540 (Running Protoize): Typo: Change "ther" into "other".
5542 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
5544 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
5545 * m68k/netbsd.h: Likewise.
5546 * ns32k/netbsd.h: Likewise.
5547 * sparc/netbsd.h: Likewise.
5549 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
5551 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
5552 * ginclude/va-clipper.h (va_list): Likewise.
5554 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
5556 * rs6000.c (rs6000_override_options): If big endian and -Os, use
5557 load/store multiple instructions unless user overrides.
5559 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
5561 * ns32k/netbsd.h: Fix typo.
5563 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
5565 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
5566 labels with .debugsym if no parallel insns.
5568 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
5570 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
5571 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
5573 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
5575 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
5576 (AR_FOR_TARGET): Define.
5578 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
5580 * dyn-string.h: New file.
5581 * dyn-string.c: Likewise.
5582 * Makefile.in (OBJS): Add dyn-string.o.
5583 (dwarf2out.o): Add dyn-string.h dependency.
5584 (dyn-string.o): List dependencies.
5585 * dwarf2out.c: Include dyn-string.h.
5586 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
5587 (addr_const_to_string): Take a dyn_string_t, not a char* as a
5588 prototype. Use dyn_string_append rather than strcat, throughout.
5589 (addr_to_string): Use dyn_string_t.
5591 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
5593 Function entry/exit profiling instrumentation:
5594 * expr.h (profile_function_entry_libfunc,
5595 profile_function_exit_libfunc): Declare new variables.
5596 * optabs.c: Define them here.
5597 (init_optabs): Initialize them.
5598 * tree.h (struct tree_decl): New flag
5599 no_instrument_function_entry_exit.
5600 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
5601 * c-decl.c (duplicate_decls): Merge it.
5602 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
5603 (init_attributes): Use it for "no_instrument_function".
5604 (decl_attributes): Handle it, for functions that have not yet been
5605 compiled. Set decl flag.
5606 * flags.h (flag_instrument_function_entry_exit): Declare new
5608 * toplev.c (flag_instrument_function_entry_exit): Define it here.
5609 (f_options): New option "instrument-functions".
5610 * function.h (struct function): New field instrument_entry_exit.
5611 * function.c (current_function_instrument_entry_exit): New
5613 (push_function_context_to, pop_function_context_from): Save and
5615 (expand_function_start): Set current_ variable, maybe emit return
5616 label and entry profile call.
5617 (expand_function_end): Maybe emit exit profile call.
5619 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
5621 * i386.md (movqi): When optimizing a load of (const_int 1) into a
5622 NON_QI_REG_P, pretend the register is SImode.
5624 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
5626 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
5627 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
5628 manufacturer id for ns32k.
5629 * configure: Regenerated.
5630 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
5631 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
5632 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
5633 * config/m68k/netbsd.h: Same.
5634 * config/ns32k/netbsd.h: Same.
5635 * config/sparc/netbsd.h: Same.
5637 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
5639 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
5640 or UNROLL_COMPLETELY loop that starts with a jump to its
5643 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
5645 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
5646 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
5647 (print_operand, case 'B'): Don't fall through.
5648 (print_operand, case 'S'): Correct mask begin/end computation.
5649 Use HOST_BITS_PER_WIDE_INT.
5650 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
5651 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
5652 * rs6000/aix41.h (CPP_PREDEFINES): Same.
5653 * rs6000/aix43.h (CPP_PREDEFINES): Same.
5655 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
5657 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
5658 constraint from second alternative.
5660 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5662 * configure.in: Fix --without/--disable cases for local-prefix,
5663 gxx-include-dir and checking.
5665 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5667 * configure.in (enable_haifa): Set by default for sparc64 too.
5670 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5672 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
5673 * i386/winnt.c (associated_type): New fn.
5674 (i386_pe_valid_type_attribute_p): New fn.
5675 (i386_pe_check_vtable_importexport): Remove.
5676 (i386_pe_dllexport_p): Use associated_type.
5677 (i386_pe_dllimport_p): Likewise.
5679 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
5680 * i386.c (i386_valid_type_attribute_p): Also accept
5681 attributes for METHOD_TYPEs.
5683 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
5685 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
5687 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
5689 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
5691 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
5692 them from generating a new base name for each occurence of
5695 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
5697 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
5699 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
5703 * cplus-dem.c (type_kind_t): New type.
5704 (demangle_template_value_parm): Add type_kind_t parameter. Rely
5705 on this paramter, rather than demangling the type again.
5706 (demangle_integral_value): Pass tk_integral.
5707 (demangle_template_: Pass the value returned from do_type.
5708 (do_type): Return a type_kind_t. Pass tk_integral to
5709 demangle_template_value_parm for array bounds.
5710 (demangle_fund_type): Likewise.
5712 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
5714 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
5717 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
5719 * pa.c (move_operand): Accept CONSTANT_P_RTX.
5721 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
5723 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
5725 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
5728 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
5730 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
5731 (DEBUGGER_ARG_OFFSET): Likewise.
5733 * mn10300.md (movsf): Remove last change. Not needed.
5735 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
5737 * c-lex.c (yylex): Fix boundary conditions in character literal and
5738 string literal loops.
5740 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
5742 * longlong.h (count_leading_zeros): Sparclite scan instruction was
5743 being invoked incorrectly.
5745 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
5746 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
5748 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
5749 * configure.in: Added i[34567]86-*-win32
5750 * config.sub: Ditto.
5751 * configure: Rebuilt.
5753 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
5755 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
5756 the frame pointer and compiling PIC code and reload has not completed.
5758 * i386.c (output_to_reg): Add code to emulate non-popping DImode
5761 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
5763 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
5765 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
5767 * Makefile.in (install-info): Only try to update the info
5768 directory file if it exists in the first place.
5770 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
5772 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
5774 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
5776 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
5777 CONST_DOUBLE source.
5779 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
5781 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
5782 strings as the insertion of USER_LABEL_PREFIX.
5783 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
5785 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
5788 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
5790 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
5791 already defined type.
5793 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
5795 * expr.c (check_max_integer_computation_mode): Allow conversions
5796 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
5797 (expand_expr): Likewise.
5799 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5801 * expr.c (expand_expr): Expand RETURN_EXPR.
5803 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
5805 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
5807 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
5809 * dwarf2out.c (output_aranges): Call stripattributes
5810 for TEXT_SECTION references.
5811 (output_line_info): Likewise.
5813 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5815 * profile.c (branch_prob): Call allocate_reg_info after outputting
5816 profile rtl in instrument_arcs.
5818 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
5820 * fixinc.irix (math.h): Install wrapper instead of copying.
5822 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5824 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
5825 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
5826 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
5827 lang_flag_0. Added documentation in the flag table.
5829 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
5831 * cccp.c (do_include): Fix vax c style include handling.
5833 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5835 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
5837 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
5839 * fold-const.c (non_lvalue): Don't deal with null pointer
5841 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5843 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
5845 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
5846 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
5847 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
5848 (u_short_cint_operand): Same.
5849 (reg_or_cint_operand): Same.
5850 (logical_operand): Same.
5851 (input_operand): Same.
5852 (reg_or_short_operand): Use u_short_cint_operand.
5854 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
5856 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
5857 but keep the insns and splits. Adjust so when the ultimate destination
5858 is memory, use cvtql.
5860 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
5862 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
5864 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
5866 * gcc.c (do_spec): Call "error" not "warning".
5868 * configure.in: Fix minor problems with gas feature detection code.
5869 * configure: Rebuilt.
5871 * gcc.c (do_spec): Issue a warning for '%[]' usage.
5874 * gcc.c: Delete %[spec] support.
5875 (do_spec_1, case '('): Likewise.
5876 (do_spec_1, case '['): Call error.
5878 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
5880 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
5881 (CPP_SUBTARGET_SPEC): Default to empty string.
5882 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
5883 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
5884 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
5885 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
5887 * alpha/linux.h (CPP_PREDEFINES): Tidy.
5888 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
5889 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
5890 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
5891 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
5892 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
5893 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
5894 * alpha/vxworks.h: Likewise.
5896 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
5898 * mips.md (reload_outsi): Added missing REGNO call.
5899 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
5901 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
5902 another match_operator and compare the codes.
5904 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
5906 * MIPS multiply pattern fixes:
5907 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
5908 Add union classes for HI, LO, or HILO plus general registers.
5909 (GENERATE_MADD): Deleted.
5910 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
5911 Add TARGET_MAD to condition.
5912 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
5913 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
5914 "*d" for accumulator, to give preference to LO initially but not
5917 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
5919 * configure.in (enable_c_mbchar): New configure option.
5920 (extra_cpp_objs): Always available now.
5922 * cexp.y (mbchar.h): #include it.
5923 (yylex): Handle Multibyte characters in character literals.
5925 * cccp.c (mbchar.h): #include it.
5926 (main): Set character set based on LANG environment variable.
5927 (rescan): Handle multibyte characters in comments.
5928 (skip_if_group): See above.
5929 (validate_else): See above.
5930 (skip_to_end_of_comment): See above.
5931 (macarg1): See above.
5932 (discard_comments): See above.
5933 (rescan): Handle multibyte characters in string and character literals.
5934 (collect_expansion): See above.
5935 (skip_quoted_string): See above.
5936 (macroexpand): See above.
5937 (macarg1): See above.
5938 (discard_comments): See above.
5939 (change_newlines): See above.
5941 * c-lex.c (mbchar.h): #include it.
5942 (GET_ENVIRONMENT): New macro.
5943 (init_lex): Set character set based on LANG environment variable.
5944 (yylex): Handle multibyte characters in character literals.
5945 (yylex): Handle multibyte characters in string literals.
5947 * Makefile.in (mbchar.o): New target.
5948 (cccp$(exeext)): @extra_cpp_objs@ is always available.
5949 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
5951 * mbchar.[ch]: New files for multibyte character handling.
5953 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5955 * jump.c (jump_optimize): When simplifying noop moves and
5956 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
5957 the PUSHes to rewrite in second loop as we did in the first.
5959 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5961 * cplus-dem.c (demangle_nested_args): Make function definition
5962 static to match the prototype.
5964 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
5966 * alloca.c: Respect USE_C_ALLOCA.
5967 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
5968 * gengenrtl.c (xmalloc): Likewise.
5970 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
5972 * loop.h (struct induction): Add no_const_addval.
5973 * loop.c (the_movables, reg_address_cost): New variables.
5974 (init_loop): Init reg_address_cost.
5975 (loop_optimize): Call end_alias_analysis.
5976 (scan_loop): Init the_movables.
5977 (record_giv): Init induction->no_const_addval.
5978 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
5979 [REG]: Rearrange loop search test to catch more cases.
5980 (general_induction_var): Return success not benefit; take an extra
5981 argument for that. Change all callers.
5982 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
5983 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
5984 [default]: Search the_movables for additional combinations.
5985 (sge_plus_constant, sge_plus): New functions.
5986 (express_from_1): New function.
5987 (express_from): Always define. Rewrite using express_from_1.
5988 (combine_givs_p): Handle more cases. Ignore address cost.
5989 (cmp_combine_givs_stats): New function.
5990 (combine_givs_used_once, combine_givs_benefit_from): New functions.
5991 (combine_givs): Rewrite to do best-fit combination.
5993 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
5994 (fold): Do a complete (A*C)+(B*C) association check.
5996 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
5998 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
6000 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
6002 * mn10300.c (MODES_TIEABLE_P): Fix typo.
6004 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
6006 * tree.c (valid_machine_attribute): Only create a new type variant if
6007 there is a decl to use it.
6009 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
6011 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
6014 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
6016 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
6019 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
6021 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
6022 Simplify tests for clearing an address register.
6023 (expand_prologue): Corresponding changes.
6025 * mn10300.md (movXX patterns): Make sure the destination is an
6026 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
6027 (logical patterns): Split into expanders + patterns
6028 (zero and sign extension patterns): Similarly.
6029 (shift patterns): Similarly.
6031 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
6033 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
6034 for the sequence, recording base values.
6036 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
6038 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
6040 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
6042 * gcc.c: Remove ANSI-C ism from --help code.
6044 * toplev.c: Support --help with USE_CPPLIB.
6046 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
6048 * configure.in: Rework gas feature code to work with symlink based
6051 * extend.texi: Clarify some issues related to local variables
6052 assigned to explicit registers.
6054 * mn10300.md (mulsi): Turn into expander + pattern.
6056 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
6059 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
6061 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
6063 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
6065 * version.c: Bump again to distinguish mainline tree from the
6068 See ChangeLog.0 for earlier changes.
6071 add-log-time-format: current-time-string
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