1 Thu Nov 5 03:42:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3 * config/sparc/sparc.md (movdf_const_intreg_sp64): Enable again.
5 Thu Nov 5 10:53:01 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
7 * configure.in: Bring over gcc2 change of Nov 19 1997.
9 Wed Nov 4 23:43:08 1998 Graham <grahams@rcp.co.uk>
11 * toplev.c (output_lang_identify): Make definition dependent on
12 ASM_IDENTIFY_LANGUAGE.
14 * print-rtl.c (spaces): Make static.
16 Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <hp@axis.se>
18 * extend.texi: Clarify proper uses for register clobbers in asms.
20 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
22 * recog.h (enum op_type): Define.
23 (constrain_operands): Adjust prototype.
24 (recog_op_type): Declare new variable.
25 * recog.c (recog_op_type): New variable.
26 (insn_invalid_p): Allow modifying an asm statement after reload.
27 (extract_insn): Set up recog_op_type.
28 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
29 Don't compute operand types, use recog_op_type.
30 Use the information computed by extract_insn instead of the previous
31 method of finding it by insn code number.
32 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
33 * reorg.c (fill_slots_from_thread): Likewise.
34 * reload1.c (reload_as_needed): Likewise.
35 (gen_reload): Likewise.
36 (inc_for_reload): Likewise.
37 (reload_cse_simplify_operands): Likewise.
38 Use the information computed by extract_insn instead of the previous
39 method of finding it by insn code number.
40 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
42 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
43 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
44 Use the information computed by extract_insn instead of the previous
45 method of finding it by insn code number.
46 * regmove.c (find_matches): Likewise. Change meaning of the return
47 value to be nonzero if the optimization can be performed, zero if
48 not. All callers changed.
49 Shorten some variable names to fix formatting problems.
50 (regmove_optimize): Shorten some variable names to fix formatting
52 Use the information computed by extract_insn instead of the previous
53 method of finding it by insn code number.
54 * regclass.c (scan_one_insn): Likewise.
55 (record_reg_classes): Don't compute operand types, use recog_op_type.
56 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
57 recog_constraints instead.
59 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
61 * rtl.h (flow2_completed): Declare.
62 * flow.c (flow2_completed): Definition.
63 * toplev.c (rest_of_compilation): Set and clear flow2_completed
66 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
68 * Makefile.in (libcpp.a): Ranlib libcpp.a
70 * cppulp.c (user_label_prefix): Initialize.
72 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
74 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
75 at a RETURN if current_function_sp_is_unchanging is set.
77 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
79 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
81 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
83 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
84 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
85 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
86 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
87 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
88 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
90 (LIB_SPEC): Handle -mno-cyginw option.
91 (LINK_SPEC): Handle -mdll.
93 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
95 * reload.c (find_reloads): Fix test for usage by other reload
96 to handle secondary reloads properly.
98 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
100 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
101 intermediate structure which has exactly the members provided by
102 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
103 static intermediate structure.
105 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
106 from the intermediate structure. Do the same analogous fix in
107 the case where ELIMINABLE_REGS is not defined.
109 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
111 * pa.h (SELECT_SECTION): Fix thinko.
113 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
115 * dwarf2out.c (output_call_frame_info): Comments on last change.
117 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
119 * arm.c (add_constant): When taking the address of an item in the
120 pool, get the mode of the item addressed.
122 * arm.c (final_prescan_insn case INSN): If an insn doesn't
123 contain a SET or a PARALLEL, don't consider it for conditional
126 Restore ABI compatibility for NetBSD.
127 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
129 (RETURN_IN_MEMORY): Likewise.
131 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
133 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
134 (m32r_output_block_move): Rewrite bytes < 4 handling.
136 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
138 * configure.in: Call AC_FUNC_VFORK.
140 * collect2.c: Define VFORK_STRING as a printable string for
141 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
142 defined, include vfork.h. If VMS is defined, define vfork()
143 appropriately. Remove vfork check on USG, we're using autoconf.
144 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
145 checking locally what string to pass.
146 (scan_prog_file): Likewise.
147 (scan_libraries): Likewise.
149 * gcc.c: Remove vfork check on USG, we're using autoconf.
150 Besides, no calls to vfork/fork occur in this file.
152 * protoize.c: Likewise.
154 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
156 * configure.in (DEFAULT_LINKER): renamed from LD
157 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
158 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
161 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
163 * BUGS: fix the regexp for `more' to find the appropriate node.
164 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
166 * BUGS: added link to the WWW FAQ
168 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
170 * version.c: Bump for snapshot.
172 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
174 * From Christian Gafton:
175 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
176 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
177 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
179 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
181 * c-common.c (c_get_alias_set): Allow all type-punning through
182 unions. Don't get confused about the type of a bit-field, despite
183 the antics of build_modify_expr.
185 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
187 * fixinc.sco: Paramaterize #include_next values.
188 * fixinc/fixinc.sco: Likewise.
190 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
192 * toplev.c (rest_of_compilation): No longer set reload_completed.
193 * reload1.c (reload): Set it here. Perform instruction splitting
194 after reload has completed if we will be running the scheduler
197 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
199 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
200 EH region if exceptions are enabled and we're performing cross
202 (find_cross_jump): Exit loop if the insns are in different EH regions.
204 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
206 * dwarf2out.c (output_call_frame_info): Use
207 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
209 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
211 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
212 * c-common.c (check_format_info): Don't check for the 'x'
213 format character twice, instead check for 'x' and 'X'
215 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
217 * configure.in (assembler features): Also make gas is configured if
218 we find it in the souce tree.
220 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
222 * i386.c (i386_comp_type_attributes): Compare whether the
223 attributes are defined, not their tree nodes.
225 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
227 * configure.in (gxx_include_dir): bitten by autoconf quoting
231 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
233 * configure.in: Ignore non-absolute value in $AS.
235 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
237 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
239 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
241 * configure.in (msdosdjgpp): Set exeext and target_alias.
243 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
245 * flow.c (XNMALLOC): New macro.
246 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
248 (add_edge, add_edge_to_label): New static functions.
249 (free_bb_memory): New function.
250 (flow_delete_insn): Delete function.
251 (basic_block_drops_in): Delete variable.
252 (find_basic_blocks): Allocate and initialize basic_block_head,
253 basic_block_succ. Don't allocate basic_block_drops_in.
254 Call free_bb_memory at the beginning.
255 (find_basic_blocks_1): Don't do multiple passes.
256 Delete code to compute basic_block_drops_in.
257 After calling make_edges, mark blocks reached by current block live.
258 Update test for unreachable live blocks.
259 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
261 Simplify to call add_edge_to_label when a LABEL_REF is found.
262 (make_edges): Simplify to call add_edge_to_label instead of
263 mark_label_ref most of the time.
264 Compute here whether control drops into the next block.
265 (delete_unreachable_blocks): Return void. All callers changed.
266 Delete unreachable blocks in reverse order.
267 After deleting all unreachable blocks, renumber the remaining ones
268 and update n_basic_blocks.
269 (delete_block): Speed up deletion a bit.
270 Don't set basic_block_drops_in for deleted blocks.
271 (free_basic_block_vars): Don't free basic_block_drops_in.
272 (life_analysis_1): Update to use new edge representation.
273 (dump_flow_info): Delete code to print basic block info; call
274 dump_bb_data instead.
275 (compute_preds_succs): Delete code to recompute basic_block_drops_in
276 and uid_block_number.
277 Simply copy the previously computed cfg.
278 (dump_bb_data): New arg LIVE_INFO. All callers changed.
279 Print register lifetime information if LIVE_INFO is nonzero.
280 * basic-block.h (dump_bb_data): Adjust prototype.
281 * gcse.c (gcse_main): Update call to dump_bb_data.
282 * rtl.h (free_bb_memory): Declare.
283 * toplev.c (rest_of_compilation): Call free_bb_memory.
285 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
286 (update_eliminable_offsets): Don't compute it.
287 (set_initial_elim_offsets): Don't initialize it.
288 Break out some code into set_initial_label_offsets so the rest of
289 this function can be called from reload_as_needed.
290 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
291 ELIMINABLE_REGS isn't.
292 (set_initial_label_offsets): New function, broken out of
293 set_initial_elim_offsets.
294 (set_offsets_for_label): New function, broken out of set_label_offsets
295 and reload_as_needed.
296 (reload): Call the two new functions.
297 (reload_as_needed): Call set_initial_elim_offsets instead of
298 duplicating the code. Likewise for set_offsets_for_label.
300 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
301 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
302 any hard reg, reg_reloaded_dead contains valid data.
304 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
306 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
307 "stdcall" and "cdecl" attributes.
309 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
311 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
312 handle deleted no-op moves of hard registers.
313 * haifa-sched.c (update_flow_info): Likewise.
315 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
317 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
318 of the sequences to reload the HILO register which do not actually
321 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
323 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
325 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
327 * except.c (emit_eh_context): Make the EH context register stay alive
328 at -O0 so stupid.c doesn't get confused.
330 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
332 * emit-rtl.c (try_split): Do not try to split a BARRIER.
334 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
335 Jeffrey A Law (law@cygnus.com)
337 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
338 (zero_extendsidi2): Use # in output template and handle completely by
340 (zero_extend splitters): New define_splits.
341 (ashiftrt_32): New pattern.
343 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
345 * tree.c (append_random_chars): New fn.
346 (get_file_function_name_long): Use it.
348 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
350 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
351 (LIBCPP_OBJS): New. Add cppulp.o.
352 (cppmain, fix-header): Depend on and use libcpp.a.
353 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
354 of the individual object files.
355 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
358 * cccp.c (user_label_prefix): New.
359 (main): Set it off -f*leading-underscore.
360 (special_symbol): Use it.
361 * cpplib.c (special_symbol): Likewise.
362 (cpp_handle_option): Handle -f*leading-underscore.
363 * cppulp.c: New file.
365 * output.h (user_label_prefix): Declare it.
366 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
367 * toplev.c (f_options, main): Handle -f*leading-underscore.
369 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
370 referencing USER_LABEL_PREFIX directly.
371 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
372 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
373 * final.c (asm_fprintf): Use user_label_prefix instead.
374 * arm/thumb.c (thumb_print_operand): Likewise.
376 * gcc.c (default_compilers): Pass -f*leading-underscore on to
377 cpp wherever appropriate.
379 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
381 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
382 specific compiler switches.
384 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
386 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
389 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
391 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
392 structure which has exactly the members provided by EXTRA_SPECS.
393 Xmalloc() the real `extra_specs', and initialize it from this
394 intermediate structure.
396 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
398 * mips.h (EXTRA_SPECS): Likewise.
400 * sparc.h (EXTRA_SPECS): Likewise.
402 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
404 * function.c (purge_addressof_1): Instead of aborting when a
405 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
406 work just put the ADDRESSOF on stack. Otherwise remember all such
407 successfull replacements, so that exactly the same replacements
408 can be made on the REG_NOTEs. Remove the special case for CALL
410 (purge_addressof_replacements): New variable.
411 (purge_addressof): Clear it at end.
413 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
415 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
416 (lang_init): Call check_newline always.
417 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
418 cpp_start_read, set yy_cur and yy_lim to read from
419 parse_in.token_buffer, so that we'll see the first #line
421 * cpplib.c (cpp_start_read): finclude the main input file
422 before processing -include/-imacros. Process -imacros and
423 -include separately, and handle -include by stacking a
424 buffer for the file in question as if it'd been #included.
425 * toplev.c (documented_lang_options) Recognize -H when
428 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
430 * cpplib.c: Merge do_once into do_pragma. Break file handling
431 code out of do_include.
432 Move append_include_chain, deps_output,
433 file_cleanup, redundant_include_p, import_hash,
434 lookup_import, add_import, read_filename_string, read_name_map,
435 open_include_file, finclude, safe_read to cppfiles.c.
436 Move prototypes for deps_output, append_include_chain,
437 finclude to cpplib.h. Move definition of struct
438 file_name_list there also.
440 * cppfiles.c: New file. Contains all the above functions
441 broken out of cpplib.c; also hack_vms_include_specification
442 from cccp.c and find_include_file, a new function broken out of
445 * Makefile.in (cppmain): Depend on cppfiles.o.
446 (fix-header): Likewise.
447 (cppfiles.o): New target.
448 * configure.in (--enable-c-cpplib): Add cppfiles.o to
449 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
451 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
453 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
454 if pending_types is non-zero.
455 (dwarfout_finish): Verify pending_types is zero before finishing.
457 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
459 * expr.c (convert_move): Use shifts to perform the move if a
460 suitable extend pattern cannot be found. Code written by
461 Richard Henderson <rth@cygnus.com>.
463 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
465 * regclass.c (renumber, regno_allocated): New static variables, moved
466 out of allocate_reg_info.
467 (allocate_reg_info): Move these two variables outside the function.
468 Move code to free memory into new function free_reg_info.
469 (free_reg_info): New function, broken out of allocate_reg_info.
470 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
471 * rtl.h (allocate_reg_info): Don't declare.
472 (free_reg_info): Declare.
474 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
476 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
478 * toplev.c (compile_file): Temporarily revert last change.
480 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
482 * c-typeck.c (convert_for_assignment): Parenthesize.
484 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
486 * reload1.c (delete_output_reload): Avoid ambigous else.
488 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
490 * toplev.c (compile_file): Call allocate_reg_info to free register
492 * rtl.h (allocate_reg_info): Declare.
494 * PROJECTS: Remove entry for local spilling.
496 * final.c (cleanup_subreg_operands): New function.
497 (final_scan_insn): Use it.
498 (alter_subreg): Clear the "used" field when we turn a SUBREG into
500 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
501 operands when reload has finished.
502 * reload.h (cleanup_subreg_operands): Declare..
503 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
504 reload. Handled in reload itself.
506 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
508 * reload1.c (verify_initial_offsets): New function.
509 (reload): Call it after reload_as_needed. Also verify that the frame
510 size stays constant during reload_as_needed.
511 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
513 * reload.h (struct insn_chain): Add need_operand_change element.
514 * reload1.c (new_insn_chain): Clear it.
515 (calculate_needs_all_insns): Set it; don't overload need_reload.
516 (reload_as_needed): Use it.
518 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
519 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
520 and reload_address_index_reg_class.
521 (find_reloads_address_1): Likewise.
522 * reload.h (reload_address_base_reg_class,
523 reload_address_index_reg_class): Don't declare.
524 * reload1.c (reg_old_renumber, pseudo_previous_regs,
525 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
526 (used_spill_regs): Now static.
527 (reload_address_base_reg_class, reload_address_index_reg_class,
528 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
529 basic_block_needs, max_needs, group_size, group_mode, max_groups,
530 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
533 (init_reload): Delete code to compute base/index reg classes.
534 (reload): Delete variable J.
535 Delete code to manage basic_block_needs.
536 Don't compute regs_explicitly_used.
537 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
538 pseudo_previous_regs.
539 Initialize bad_spill_regs_global.
540 Don't call order_regs_for_reload here.
541 Don't initialize spill_reg_order and n_spills.
542 Don't forbid explicitly used regs to be used for spill regs.
543 Change main loop to infinite loop, with explicit break statements.
544 Make SOMETHING_CHANGED variable local to that loop.
545 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
546 max_groups_insn, max_nongroups_insn, group_size, group_mode.
547 Make sure spilled_speudos is cleared before calling spill_hard_reg or
549 Don't call dump_needs.
550 Delete code to reset potential_reload_regs.
551 Delete code to terminate loop conditional on the global needs variables
552 showing no further needs.
553 (calculate_needs_all_insns): Return void. All callers changed.
554 Initialize somehing_needs_elimination here, not in reload.
555 Delete avoid_return_reg kludge.
556 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
558 Initialize the group_mode and group_size elements of the arg CHAIN.
559 Delete code to manage basic_block_needs.
560 Operate on elements of CHAIN instead of global variables.
561 Delete avoid_return_reg kludge.
562 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
564 Operate on elements of CHAIN instead of global variables.
565 Delete special SMALL_REGISTER_CLASSES code.
566 Delete spill_failure code; now in new_spill_reg.
567 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
569 Operate on elements of CHAIN instead of global variables.
570 (maybe_mark_pseudo_spilled): New static function.
571 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
573 Operate on elements of CHAIN instead of global variables.
574 Call order_regs_for_reload here, not in reload.
575 Initialize spill_reg_order and n_spills.
576 Simplify test whether an asm insn is involved.
577 Delete spill_failure code; now in new_spill_reg.
578 Call maybe_mark_pseudo_spilled for everything marked as live in
579 CHAIN. Merge CHAIN's used_spill_regs into the global variable
581 (dump_needs): Take CHAIN arg. No longer static, to prevent the
582 compiler from optimizing this function (now unused) away.
583 Operate on elements of CHAIN instead of global variables.
584 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
586 Operate on elements of CHAIN instead of global variables.
587 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
588 take CHAIN arg. All callers changed.
589 Operate on elements of CHAIN instead of global variables.
590 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
591 CHAIN, NONGROUP args. Return void. All callers changed.
592 Verify caller isn't trying to spill a pseudo.
593 Simplify test for illegal reg, just use bad_spill_regs.
594 Generate better error messages.
595 Operate on elements of CHAIN instead of global variables.
596 Mark spilled register in CHAIN's used_spill_regs element.
597 Don't call spill_hard_reg.
598 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
599 Mark spilled hard regs in bad_spill_regs_global.
600 Mark affected pseudos in spilled_pseudos, but don't spill them.
601 (ior_hard_reg_set): New static function.
602 (finish_spills): Return int. All callers changed.
603 Compute spill_reg_order, n_spills and spill_regs here. Also update
604 regs_ever_live for regs used as spills.
605 For every pseudo in spilled_pseudos, spill it and mark the previous
606 hard reg it had in pseudo_previous_regs. Compute which hard regs
607 arseudo): New static function.
608 (order_regs_for_reload): Take CHAIN arg. All callers changed.
609 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
610 hard registers explicitly used across the current insn into the set.
611 Compute hard_reg_n_uses taking only pseudos live across this insn
613 Tweak sorting of potential_reload_regs.
614 (compare_spill_regs): Delete function.
615 (reload_as_needed): Don't sort the spill_regs array, it's computed
616 in proper order in finish_spills.
617 Delete avoid_return_reg kludge.
618 Delete code to manage basic_block_needs.
619 (allocate_reload_reg): Minor speed/readability tweaks.
620 Operate on elements of CHAIN instead of global variables.
621 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
622 Delete avoid_return_reg kludge.
623 Initialize reload_reg_used from CHAIN's used_spill_regs element.
624 Delete unused label FAIL.
625 (reload_combine): Replce reload_address_index_reg_class with
627 Don't use used_spill_regs to determine information about lifetime of
630 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
632 * toplev.c (display_help): Ignore empty target specific
633 options, and if -W is also specified on the command line then
634 display undocumented options.
636 * config/arm/arm.c: Updated with changes in devo sources.
637 * config/arm/arm.h: Updated with changes in devo sources.
638 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
639 * config/arm/lib1thumb.asm: Add ELF support.
641 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
643 * collect2.c (aix64_flag): New variable.
644 (main, case 'b'): Parse it.
645 (GCC_CHECK_HDR): object magic number must match mode.
646 (scan_prog_file): Only check for shared object if valid header.
647 Print debugging if header/mode mismatch.
649 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
651 Added support for arm-elf-linux configuration, submitted by Philip
652 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
653 code developed by Catherine Moore <clm@cygnus.com>. The following
656 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
659 * configure: Regenerated.
661 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
662 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
663 definitions conditional on their not having been already defined.
665 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
666 and .type directives, and add "(PLT)" qualification to function
669 * config/arm/linux.h: Deleted. This file is now superceeded by
670 either linux-elf.h or linux-aout.h.
672 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
673 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
675 Move definitions from old linux.h file here.
677 * config/arm/elf.h: New file. Generic ARM/ELF support.
679 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
681 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
683 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
684 using the 26bit APCS.
686 * config/arm/unknown-elf.h: New file. Support for OS'es other
689 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
692 * config/arm/coff.h: Include aout.h for basic assembler macros.
693 Add support for -mstructure_size_boundary=<n> command line option.
695 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
696 command line option. Make macro definitions conditional on their
697 not having been already defined.
699 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
703 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
705 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
706 has been changed to not include a newline. Use this macro instead.
707 (output_enumeral_list, const_value_attribute, name_attribute,
708 comp_dir_attribute, prototyped_attribute, producer_attribute,
709 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
710 dwarfout_file_scope_decl, generate_new_sfname_entry,
711 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
712 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
714 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
716 * combine.c (subst): Process the inputs to a parallel asm_operands
719 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
721 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
723 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
725 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
727 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
729 * version.c: Bump for snapshot.
731 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
733 * stmt.c (expand_fixup): Set fixup->before_jump to a
734 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
736 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
738 * Makefile.in (recog.o): Depend on toplev.h.
739 (insn-emit.o): Depend on recog.h.
740 (insn-peep.o): Depend on recog.h and insn-config.h.
742 * combine.c (simplify_set): Remove unused variable `scratches'.
744 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
745 and `idx' in macro conditional controlling their use.
747 * genemit.c (main): Make the generated output file include
748 recog.h. Don't have it declare `insn_operand_constraint', since
749 we get it from recog.h.
751 * genpeep.c (main): Make the generated output file include
752 insn-config.h and recog.h.
754 * recog.c: Include toplev.h.
755 (extract_insn): Remove unused variable `p'.
757 * regclass.c (fix_register): Add missing braces around initializer
759 (allocate_reg_info): Move variable `i' into the scope where it is
760 used. Change its type to `size_t'.
762 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
764 * reload.c (push_reload): When merging reloads, make sure
765 that reload_in_reg and reload_in are from the same reload in
768 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
770 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
771 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
773 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
775 * loop.c (loop_has_tablejump): New variable.
776 (prescan_loop): Scan for it.
777 (insert_bct): Replace explicit scan with use of it.
778 * regclass.c (regclass): Restore loop variable j.
779 (record_reg_classes): Deterine op_types modifiers and initialize
780 classes[i] before matching constraints. Handle matching
783 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
785 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
788 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
790 * mips.h (EXTRA_SPECS): Add missing initializers.
792 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
794 * sparc.h (EXTRA_SPECS): Add missing initializers.
795 (sparc_defer_case_vector): Provide a prototype.
797 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
798 comparing it to the result of a pointer subtraction.
800 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
802 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
803 the argument to (unsigned char).
805 * alpha.h (EXTRA_SPECS): Add missing initializers.
806 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
809 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
811 * flow.c (life_analysis_1): Enable "rescan" code after reload.
812 (propagate_block): Delete dead code after reload.
814 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
815 back Oct 15, 1998 change.
816 * haifa-sched.c (update_flow_info): Likewise.
817 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
819 * mn10200.md (truncated shift): Accept constant inputs too.
821 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
823 * machmode.h (mode_mask_array): No longer const.
824 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
826 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
828 * frame.c: Somewhat explain `FDE'.
829 Suggested by Brendan Kehoe
831 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
833 * expr.c (pending_chain): Move up.
834 (save_expr_status): Do save pending_chain.
835 (restore_expr_status): And restore it.
836 * function.h (struct function): Add pending_chain.
838 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
840 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
841 did not match the code.
843 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
845 * regclass.c (regclass): Break out some code into new function
846 scan_one_insn, and into regclass_init.
847 (init_cost): New static variable, moved out of regclass.
848 (regclass_init): Initialize it here, not in .
849 (scan_one_insn): New static function, broken out of regclass.
850 * recog.c (apply_change_group): Break out some code into new
851 function insn_invalid_p.
852 (insn_invalid_p): New static fn, broken out of apply_change_group.
854 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
856 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
857 reg_reloaded_contents matches incremented pseudo.
859 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
861 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
863 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
864 addressing modes with side effects. These are currently
865 placeholders for the C4x target.
867 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
869 * loop.c (express_from): Make sure that when generating a PLUS of
870 a PLUS, any constant expression appears on the outermost PLUS.
872 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
874 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
875 works if "$(srcdir)" != ".".
877 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
879 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
880 existing SUBREG if we can, otherwise abort.
882 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
884 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
885 `restrict' is applied to a non-pointer variable.
887 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
889 * invoke.texi: Document -flang-isoc9x.
891 * Makefile.in (OBJS): Add splay-tree.o.
892 (c-common.o): Depend on rtl.h.
893 (splay-tree.o): List dependencies and provide build rule.
895 * rtl.h (record_alias_subset): New function.
896 * alias.c: Include splay-tree.h.
897 (alias_set_entry): New type.
898 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
899 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
900 (mems_in_disjoin_alias_sets_p): New function.
901 (alias_set_compare): Likewise.
902 (insert_subset_children): Likewise.
903 (get_alias_set_entry): Likewise.
905 * tree.h (TYPE_RESTRICT): New macro.
906 (TYPE_UNQUALIFIED): New manifest constant.
907 (TYPE_QUAL_CONST): Likewise
908 (TYPE_QUAL_VOLATILE): Likewise.
909 (TYPE_QUAL_RESTRICT): Likewise.
910 (tree_type): Add restrict_flag. Reduce count of free bits.
911 (DECL_POINTER_ALIAS_SET): New macro.
912 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
913 (tree_decl): Add pointer_alias_set.
914 (build_qualified_type): New function.
915 (build_type_variant): Define in terms of build_qualified_type.
916 * tree.c (set_type_quals): New function.
917 (make_node): Initializae DECL_POINTER_ALIAS_SET.
918 (build_type_attribute_variant): Use build_qualified_type and
920 (build_type_variant): Rename, and modify, to become...
921 (build_qualified_type): New function.
922 (build_complex_type): Use set_type_quals.
924 * c-tree.h (C_TYPE_OBJECT_P): New macro.
925 (C_TYPE_FUNCTION_P): Likewise.
926 (C_TYPE_INCOMPLETE_P): Likewise.
927 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
928 (c_apply_type_quals_to_decl): New function.
929 (c_build_qualified_type): New function.
930 (c_build_type_variant): Define in terms of c_build_qualified_type.
931 (flag_isoc9x): Declare.
932 * c-typeck.c (qualify_type): Use c_build_qualified_type.
933 (common_type): Change to use TYPE_QUALS.
934 (comptypes): Likewise.
935 (convert_for_assignment): Likewise.
936 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
937 * c-decl.c (flag_isoc9x): Define.
938 (c_decode_option): Handle -flang-isoc9x.
939 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
940 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
941 * c-lex.c (init_lex): Deal with restrict.
942 (init_lex): Don't treat restrict as a reserved word in
943 -traditional mode, or without -flang-isoc9x.
944 * c-lex.h (rid): Add RID_RESTRICT.
945 * c-parse.gperf (restrict, __restrict, __restrict__): Make
946 equivalent to RID_RESTRICT.
947 * c-parse.in (TYPE_QUAL): Update comment.
948 * c-common.c: Include rtl.h.
949 (c_find_base_decl): New function.
950 (c_build_type_variant): Rename, and modify, to become ...
951 (c_build_qualified_type): New function.
952 (c_apply_type_quals_to_decl): Likewise.
953 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
954 a particular alias set for the reference.
955 * toplev.c (documented_lang_options): Add -flang-isoc9x.
957 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
959 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
960 command line switches.
962 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
964 * reload.c (loc_mentioned_in_p): Add missing braces to bind
967 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
969 * gcc.c (option_map): Added --classpath and --CLASSPATH.
971 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
973 * regclass.c (fix_register): Add error message.
974 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
977 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
979 * c-decl.c (warn_missing_noreturn): New global variable.
980 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
981 (finish_function): Implement missing noreturn warning.
983 * c-tree.h (warn_missing_noreturn): Declare extern.
985 * invoke.texi: Document new flags.
987 * toplev.c (documented_lang_options): Add description.
989 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
991 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
992 loop optimization stable for the C4x.
993 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
994 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
995 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
997 (c4x_address_conflict): Be more paranoid when packing a volatile
998 memref in a parallel load/store.
1000 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1002 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
1003 repeat_block_filler): Deleted.
1004 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
1005 Condition code not set if destination register from 'c' class.
1006 (*subbqi3_carry_clobber): Fix typo.
1008 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1010 * reorg.c (steal_delay_list_from_target) Check for insns that
1011 modify the condition codes and effect the direction of the jump
1014 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1016 * function.c (purge_addressof_1): Replace call to
1017 emit_insns_before() with emit_insn_before().
1019 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
1021 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
1023 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1025 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
1027 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1029 * gcse.c (compute_hash_table): Correctly identify hard regs which are
1030 clobbered across calls.
1032 * loop.c (scan_loop): Be more selective about what invariants are
1033 moved out of a loop.
1035 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
1037 * version.c: Bump for snapshot.
1039 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1041 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
1042 static eh_context structure.
1044 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1046 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
1048 (try_combine): Don't update max_scratch.
1049 * flow.c (max_scratch, num_scratch): Delete variables.
1050 (life_analysis_1): Don't initialize max_scratch.
1051 (propagate_block): Don't update max_scratch.
1052 (mark_set_1): Don't increment num_scratch.
1053 * regs.h (max_scratch): Delete declaration.
1055 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
1057 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
1058 is nonzero. This is temporary!
1060 * sched.c (update_flow_info): Handle death notes made invalid by
1061 instruction splitting. Partially reverts Oct 15, 1998 patch.
1062 * haifa-sched.c (update_flow_info): Likewise.
1064 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
1066 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
1067 if it has a nonzero DECL_INITIAL.
1069 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1071 * Makefile.in (flow.o): Depend on recog.h.
1073 * cpplib.h (directive_table): Add missing initializiers.
1074 (finclude): Change type of variable `bsize' to size_t.
1076 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
1078 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
1080 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
1081 `int' when comparing against one.
1082 (cpp_file_line_for_message): Mark parameter `pfile' with
1084 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
1086 * flow.c: Include recog.h.
1087 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
1089 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
1090 `f' with ATTRIBUTE_UNUSED.
1091 (reposition_prologue_and_epilogue_notes): Likewise.
1093 * genopinit.c (gen_insn): Cast argument of ctype functions to
1096 * haifa-sched.c: Include recog.h.
1097 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
1098 comparing against one.
1100 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
1102 * mips-tfile.c (parse_end): Cast the argument of ctype function to
1104 (parse_ent): Likewise.
1105 (parse_input): Likewise.
1107 * optabs.c (init_libfuncs): Likewise.
1109 * protoize.c (find_rightmost_formals_list): Likewise.
1111 * recog.h (const_double_operand): Fix typo in prototype.
1113 * tlink.c (scan_linker_output): Cast the argument of ctype
1114 function to `unsigned char'.
1116 * toplev.c (check_lang_option): Cast the result of `strlen' to
1117 `int' when comparing against one.
1119 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1121 * gcse.c (dump_cuid_table): Correct typo.
1123 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
1125 * toplev.c (display_help): Prepend '-m' to target specific
1127 (check_lang_option): Ignore text after end of first word of a
1128 language specific option.
1130 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1132 * reload1.c (reg_used_by_pseudo): New static variable.
1133 (choose_reload_regs): Initialize it.
1134 Use it instead of testing spill_reg_order to determine whether a
1135 pseudo is live in a hard register across the current insn.
1136 Fix a typo in a reference to reload_reg_rtx.
1138 * flow.c (propagate_block): Replace code that computes and uses
1139 regs_sometimes_live with simpler code that just walks the set of
1140 currently live registers.
1142 * Makefile.in (insn-extract.o): Fix dependencies.
1143 * genextract.c (main): Generate includes for insn-config.h and
1145 Delete generation of declarations which are now in recog.h.
1146 * genrecog.c (main): Delete generation of definitions which are
1148 * local-alloc.c (block_alloc): Use extract_insn and the variables
1149 it sets up instead of looking up values by insn_code.
1150 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
1151 recog_dup_num): Define here instead of generating the definition in
1153 (recog_n_operands, recog_n_dups, recog_n_alternatives,
1154 recog_operand_mode, recog_constraints, recog_operand_address_p):
1156 (extract_insn): New function.
1157 * recog.h (extract_insn): Declare function.
1158 (which_alternative, recog_n_operands, recog_n_dups,
1159 recog_n_alternatives, recog_operand_mode, recog_constraints,
1160 recog_operand_address_p): Declare variables.
1161 * regclass.c (n_occurrences): New static function.
1162 * reload.c (n_occurrences): Delete function.
1163 (find_reloads): Use extract_insn.
1164 * reload.h (n_occurrences): Delete declaration.
1166 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
1168 * reload1.c (reload_as_needed): Fix test for when to call
1169 update_eliminable_offsets.
1171 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1173 Fix consistency problems with reg_equiv_{mem,address};
1174 Improve reload inheritance;
1176 * reload.c (reload_out_reg): New variable.
1177 (loc_mentioned_in_p, remove_address_replacements): New functions.
1178 (remove_replacements): Deleted.
1179 (push_reload): Set reload_out_reg[i].
1180 When merging, also set reload_{in,out}_reg[i], and remove
1181 duplicate address reloads.
1182 (combine_reloads): Copy reload_out_reg[i].
1183 (find_reloads): Do make_memloc substitution also when
1184 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1186 Include *recog_operand_loc in commutativity operand changes.
1187 Generate optional output reloads.
1188 Delete reference to n_memlocs. Don't set *recog_operand_loc before
1189 processing operands. Call make_memloc in reg_equiv_address code.
1190 Set *recog_operand_loc only after processing operands, and only
1191 if replace is true. Return a value.
1192 When changing address reload types for operands that didn't get
1193 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
1194 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
1195 Don't emit USEs for pseudo SUBREGs when not replacing.
1196 (find_reloads_address): Do make_memloc substitution also when
1197 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1199 (find_reloads_toplev): Likewise.
1200 Call make_memloc in reg_equiv_address code.
1201 (debug_reload_to_stream): Add code to output reload_out_reg.
1202 (make_memloc): Delete local variable i, ifdefed out code, and
1203 references to memlocs and n_memlocs.
1204 (memlocs, n_memlocs): Delete.
1205 (push_secondary_reload): Clear reload_out_reg.
1206 (find_reloads_address_1): Provide memrefloc argument to all calls
1207 to find_reloads_address.
1208 In AUTO_INC code, handle non-directly addressable equivalences properly.
1209 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
1210 (find_reloads): Add return type.
1211 (remove_address_replacements, deallocate_reload_reg): Declare.
1212 * reload1.c (num_not_at_initial_offset): No longer static.
1213 (delete_address_reloads, delete_address_reloads_1): Likewise.
1214 (deallocate_reload_reg): New function.
1215 (spill_reg_stored_to): New array.
1216 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
1217 (eliminate_regs_in_insn): Move assignments of previous_offset and
1218 max_offset fields, and recalculation of num_not_at_initial_offset
1219 into new static function:
1220 (update_eliminable_offsets) .
1221 (reload_as_needed): Call update_eliminable_offsetss after calling
1223 Call forget_old_reloads_1 with contents of reloaded auto_inc
1224 expressions if the actual addressing can't be changed to match the
1226 (choose_reload_regs): For inheritance, replace
1227 reload_reg_free_before_p test with reload_reg_used_at_all test, and
1228 remove stand-alone reload_reg_used_at_all test.
1229 Use reload_out_reg to determine which reload regs have output reloads.
1230 Treat reload_override_in more similar to inherited reloads.
1231 Handle (subreg (reg... for inheritance.
1232 For flag_expensive_optimizations, add an extra pass to remove
1233 unnecessary reloads from known working inheritance.
1234 Delete obsolete code for pseudos replaced with MEMs.
1235 Handle inheritance from auto_inc expressions.
1236 (emit_reload_insns): If reload_in is a MEM, set OLD to
1238 Don't reload directly from oldequiv; if it's a pseudo with a
1239 stack slot, use reload_in[j].
1240 Check that reload_in_reg[j] is a MEM before replacing reload_in
1241 from reg_reloaded_contents.
1242 Include non-spill registers in reload inheritance processing.
1243 Also try to use reload_out_reg to set spill_reg_store /
1244 reg_last_reload_reg.
1245 In code to set new_spill_reg_store, use single_set to find out if
1246 there is a single set.
1247 Add code that allows to delete optional output reloads.
1248 Add code to allow deletion of output reloads that use no spill reg.
1249 At the end, set reload_override_in to oldequiv.
1250 Also call delete_output_reload if reload_out_reg is equal to old
1252 Add code to call delete_output_reload for stores with no matching load.
1253 Set / use spill_reg_stored_to.
1254 Handle case where secondary output reload uses a temporary, but
1255 actual store isn't found.
1256 When looking for a store of a value not loaded in order to call
1257 delete_output_reload, count_occurences should return 0 for no
1258 loads; but discount inherited input reloadill_reg_stored_to.
1259 Do checks for extra uses of REG. Changed all
1261 Use delete_address_reloads.
1262 (reload): Take return value of find_reloads into account.
1263 If a no-op set needs more than one reload, delete it.
1264 (reload_reg_free_before_p): RELOAD_FOR_INPUT
1265 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
1266 for the same operand.
1267 (clear_reload_reg_in_use): Check for other reloads that keep a
1269 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
1270 RELOAD_FOR_OPADDR_ADDR.
1271 Take into account when an address address reload is only needed
1272 for the address reload we are considering.
1273 (count_occurrences): Use rtx_equal_p for MEMs.
1274 (inc_for_reload): Return instruction that stores into RELOADREG.
1275 New argument two, IN, and rtx. Changed all callers.
1276 (calculate_needs_all_insns, reload_as_needed):
1277 Don't clear after_call for a CLOBBER.
1278 Keep track of how many hard registers need to be copied from
1279 after_call, and don't clear after_call before we have seen
1280 that much copies, or we see a different instruction.
1282 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
1284 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
1285 after reload has completed.
1287 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
1289 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
1290 a macro name and the next token with a single blank if that whitespace
1291 is in a macro buffer and the next token is not '('.
1293 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
1295 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
1297 (skip_if_group): Ditto.
1298 (skip_to_end_of_comment): Ditto.
1300 (discard_comments): Ditto.
1301 (change_newlines): Ditto.
1303 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
1305 * c-lex.c (yylex): Fix unaligned access of wchar_t.
1307 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
1309 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
1310 (TARGET_OPTIONS): Add --help documentation.
1312 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1314 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
1316 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
1318 * fixinc/* Moved in from ../contrib directory in preparation
1319 for integrating it into the normal build process. In particular,
1320 fixinc/Makefile.in must be config-ed into the build directory
1321 as fixinc/Makefile. Proposed patches to ./Makefile.in and
1322 ./configure.in will be "in the mail" momentarily.
1324 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
1326 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
1327 accidently walk into the free list. Comment how that can happen.
1328 (invalidate): Fix indentation.
1330 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1331 Jeffrey A Law (law@cygnus.com)
1333 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
1334 reload. Never perform rescans of the insn chain after reload.
1335 (propagate_block): Do not delete insn or create new autoinc addressing
1338 * jump.c (jump_optimize): Unconditionally use the code that was
1339 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
1340 * reload1.c (reload): When reloading is finished, delete all
1341 REG_DEAD and REG_UNUSED notes.
1342 (emit_reload_insns): Delete all code that was conditional on
1343 PRESERVE_DEATH_INFO_REGNO_P.
1344 (no_longer_dead_regs): Delete variable.
1345 (reload_cse_delete_death_notes): Delete function.
1346 (reload_cse_no_longer_dead): Delete function.
1347 (reload_cse_regs_1): Delete all code to handle deletion of death
1349 (reload_cse_noop_set_p): Likewise.
1350 (reload_cse_simplify_set): Likewise.
1351 (reload_cse_simplify_operands): Likewise.
1352 (reload_cse_move2add): Likewise.
1353 * reorg.c (used_spill_regs): Delete declaration.
1354 (max_label_num_after_reload): Delete declaration.
1355 (find_dead_or_set_registers): Don't assume that spill regs are
1356 dead at a CODE_LABEL.
1357 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
1359 * sched.c (sched_analyze_insn): Likewise.
1360 (update_flow_info): Likewise.
1361 * haifa-sched.c (sched_analyze_insn): Likewise.
1362 (update_flow_info): Likewise.
1363 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
1364 * toplev.c (max_label_num_after_reload): Delete variable.
1365 (rest_of_compilation): Don't set max_label_num_after_reload.
1366 Call life_analysis after reload_cse_regs if optimizing.
1367 * config/gmicro/gmicro.h: Delete comment referring to
1368 PRESERVE_DEATH_INFO_REGNO_P.
1369 * config/i386/i386.h: Likewise.
1370 * config/m88k/m88k.h: Likewise.
1371 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
1372 * config/sh/sh.h: Likewise.
1374 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
1376 * loop.c (strength_reduce): Restore marking bct_p as
1378 * rs6000.c (optimization_options): Change #ifdef HAIFA to
1379 HAVE_decrement_and_branch_on_count.
1380 (small_data_operand): Remove TARGET_ELF condition for marking
1381 parameters ATTRIBUTE_UNUSED.
1383 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
1385 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
1386 (SELECT_SECTION): Resync with svr4.h.
1388 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
1390 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
1393 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
1395 * c-pragma.c (handle_pragma_token): Test for null tree before
1396 dereferencing TREE_CODE.
1398 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1400 * config/c4x/c4x.c: Convert to use GEN_INT.
1401 (c4x_parallel_process): Rework to handle new repeat loop structure.
1403 * config/c4x/c4x.md: Convert to use GEN_INT.
1404 (rptb_end): Convert to use GE test. Replace uses with clobbers.
1405 (decrement_and_branch_on_count): Likewise.
1407 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
1408 loop.c has the desired functionality.
1409 (rc_reg_operand): New prototype.
1411 * config/c4x/t-c4x: Can now build all front ends.
1413 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
1415 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
1417 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
1419 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
1420 * config/t-rtems: Do not install assert.h -- use newlib's.
1422 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1424 * combine.c (combine_instructions): When finished, call init_recog.
1425 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
1427 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
1429 * toplev.c: If flag_syntax_only, don't open or write assembler file.
1431 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1433 * cppalloc.c (memory_full): Mark function prototype with
1436 * demangle.h (collect_exit): Likewise.
1438 * fix-header.c (v_fatal, fatal): Likewise.
1440 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
1443 * gcov.c (print_usage): Likewise.
1445 * genattr.c (fatal, fancy_abort): Likewise.
1447 * genattrtab.c (fatal, fancy_abort): Likewise.
1449 * gencodes.c (fatal, fancy_abort): Likewise.
1451 * genconfig.c (fatal, fancy_abort): Likewise.
1453 * genemit.c (fatal, fancy_abort): Likewise.
1455 * genextract.c (fatal, fancy_abort): Likewise.
1457 * genflags.c (fatal, fancy_abort): Likewise.
1459 * genopinit.c (fatal, fancy_abort): Likewise.
1461 * genoutput.c (fatal, fancy_abort): Likewise.
1463 * genpeep.c (fatal, fancy_abort): Likewise.
1465 * genrecog.c (fatal, fancy_abort): Likewise.
1467 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
1468 __sjpopnthrow, __throw): Likewise.
1470 * objc/objc-act.c (objc_fatal): Likewise.
1472 * protoize.c (usage, aux_info_corrupted,
1473 declare_source_confusing): Likewise.
1475 * rtl.c (dump_and_abort): Likewise.
1477 * rtl.h (sets_cc0_p): Likewise.
1479 * toplev.c (float_signal, pipe_closed): Likewise.
1481 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1483 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
1484 when generating the decision tree for the general case.
1486 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
1487 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
1489 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1491 * Makefile.in (sched.o): Depend on recog.h.
1493 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
1494 (unsigned) when comparing against one.
1495 (find_base_value): Likewise.
1496 (record_base_value): Cast variable `regno' to (unsigned) when
1497 comparing against one. Cast the result of REGNO() macro to
1498 (unsigned) when comparing against one.
1499 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
1501 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
1502 variable where an unsigned index is needed.
1504 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
1505 before comparing against one.
1507 * collect2.c: Add prototypes for functions `error', `fatal' and
1508 `fatal_perror'. Make these functions take variable arguments
1509 instead of faking it with a fixed number of args.
1510 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
1513 * combine.c (can_combine_p): Mark parameter `pred' with
1515 (find_split_point): Cast variable `src' to (unsigned
1516 HOST_WIDE_INT) when comparing against one.
1517 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
1518 (simplify_logical): Likewise.
1519 (force_to_mode): Cast result of INTVAL() macro to (unsigned
1520 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
1521 HOST_WIDE_INT) in shift.
1522 (simplify_and_const_int): Cast result of INTVAL() macro to
1523 `unsigned HOST_WIDE_INT' when comparing against one.
1524 (merge_outer_ops): Cast variable const0 to `unsigned
1525 HOST_WIDE_INT' when comparing against the result of
1526 GET_MODE_MASK() macro.
1527 (simplify_comparison): Likewise for variable `c0'. Cast variable
1528 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
1529 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
1530 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
1531 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
1532 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
1533 comparing against one.
1534 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
1536 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
1537 macro to `unsigned HOST_WIDE_INT' when comparing against one.
1538 (output_block_move): Cast `sizeof' expression to (int) when
1539 comparing against one.
1540 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
1542 (save_restore_insns): Cast `base_offset' to `long' to match format
1543 specifier in fprintf.
1545 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
1546 to `enum machine_mode'.
1548 * flow.c (life_analysis_1): Remove unused variable `insn'.
1550 * gcc.c (translate_options): Move variables `j' and `k' into the
1551 scope in which they are used. Change their types to `size_t'.
1552 (set_spec): Cast the argument of ctype macro to `unsigned char'.
1553 (read_specs): Likewise.
1554 (process_command): Cast `sizeof' to (int) when comparing against one.
1555 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
1556 (handle_braces): Cast both sides of `==' expression to `long' to
1557 ensure sign matching.
1558 (main): Cast variable `i' to `int' when comparing against one.
1560 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
1561 int to size_t. Cast variable `i' to size_t when comparing against
1564 * genattrtab.c (convert_set_attr_alternative): Remove unused
1565 parameter `insn_code'. All callers changed.
1566 (convert_set_attr): Likewise.
1568 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
1569 size_t when comparing against one. Likewise for variable `len'.
1571 * global.c (global_alloc): Cast variable `max_regno' to size_t
1572 when comparing against one. Likewise for variable `max_allocno'.
1574 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
1576 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
1577 `set' with ATTRIBUTE_UNUSED.
1578 (find_free_reg): Cast `sizeof' expression to (int) when comparing
1581 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
1582 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
1583 (get_condition): Cast variable `const_val' to `unsigned
1584 HOST_WIDE_INT' when comparing against one. Cast unsigned
1585 expression to HOST_WIDE_INT when comparing against one.
1586 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
1587 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
1588 `unsigned' when comparing against one.
1590 * protoize.c (is_id_char): Change type of parameter `ch' to
1592 (munge_compile_params): Cast argument of ctype macro to (const
1594 (process_aux_info_file): Cast variable `aux_info_size' to int when
1595 comparing against one.
1596 (forward_to_next_token_char): Cast argument of ctype macro to
1597 `const unsigned char'.
1598 (edit_formals_lists): Likewise.
1599 (find_rightmost_formals_list): Likewise.
1600 (add_local_decl): Likewise.
1601 (add_global_decls): Likewise.
1602 (edit_fn_definition): Likewise.
1603 (do_cleaning): Likewise.
1604 (scan_for_missed_items): Likewise.
1605 (edit_file): Cast variable `orig_size' to (int) when comparing
1607 (main): Cast argument of ctype macro to `const unsigned char'.
1609 * recog.c (const_int_operand): Mark parameter `mode' with
1612 * regclass.c (record_reg_classes): Change type of variable `c' to
1613 `unsigned char'. Cast `char' array index to `unsigned char'.
1615 * reload.c (push_secondary_reload): Cast argument to
1616 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
1618 * reload1.c (calculate_needs): Cast `char' array index to
1620 (set_label_offsets): Change type of variable `i' to unsigned int.
1621 Cast result of XVECLEN() macro to unsigned when comparing against
1623 (mark_not_eliminable): Change type of variable `i' to unsigned.
1624 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
1625 when comparing against one.
1626 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
1627 comparing against one.
1628 (choose_reload_regs): Hide unused label `fail'.
1629 (reload_cse_simplify_operands): Cast `char' array index to
1631 (reload_combine_note_store): Mark parameter `set' with
1632 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
1634 (reload_cse_move2add): Remove unused variable `src2'.
1636 * sched.c: Include recog.h.
1637 (sched_note_set): Remove unused parameter `b'. All callers
1639 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
1640 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
1641 when comparing against one.
1643 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
1644 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
1645 comparing against one.
1647 * unroll.c (precondition_loop_p): Remove unused parameter
1648 `loop_end'. All callers changed.
1650 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1652 * reload1.c (maybe_fix_stack_asms): New static function.
1655 * reload.h (compute_use_by_pseudos): Declare.
1657 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
1658 (something_needs_reloads): Delete variable.
1659 (finish_spills): New function.
1660 (compute_use_by_pseudos): New function.
1662 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
1663 Use the reload_insn_chain instead of walking the rtl directly.
1665 (reload): Allocate and free spilled_pseudos.
1666 Ensure that all calls of spill_hard_reg are followed by a call to
1668 Use the insns_need_reload list instead of something_needs_reloads
1669 to find out if reload_as_needed must be called.
1670 Clear unused_insn_chains at the end.
1672 (calculate_needs_all_insns): Lose FIRST parameter. All callers
1674 Delete code to keep track of current basic block.
1675 Walk reload_insn_chain instead of the rtl structure. Build the
1676 insns_need_reload chain.
1677 Remember which insns need reloading/elimination by setting the
1678 appropriate fields in struct insn_chain, not by putting modes on the
1681 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
1682 arg INSN. All callers changed.
1683 Delete declaration of struct needs.
1684 Don't set something_needs_reloads.
1685 Record insn needs in the CHAIN argument.
1687 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
1689 (reload_as_needed): Lose FIRST arg. All callers changed.
1690 Walk the reload_insn_chain instead of the rtx structure.
1691 Delete code to keep track of current basic block.
1692 Rename one of the NEXT variables to OLD_NEXT.
1694 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
1696 (choose_reload_regs): Likewise.
1698 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
1701 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
1702 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
1703 (hard_regs_live, hard_regs_need_restore): Delete variables.
1704 (n_regs_saved): Now static.
1705 (referenced_regs, this_insn_sets): New variables.
1707 (setup_save_areas): Restructure the code a bit.
1709 (restore_referenced_regs): Delete function.
1710 (mark_referenced_regs): New function, similar to the old
1711 restore_referenced_regs, but mark registers in referenced_regs.
1713 (clear_reg_live): Delete function.
1714 (mark_set_regs): Renamed from set_reg_live. All callers changed.
1715 Only mark registers in this_insn_sets.
1717 (save_call_clobbered_regs): Rework this function to walk the
1718 reload_insn_chain instead of using the list of instructions directly.
1719 Delete code to keep track of register lives, compute live regs on the
1720 fly from information in the chain.
1721 Instead of calling restore_referenced_regs, use mark_referenced_regs,
1722 then walk the set it computes and call insert_restore as appropriate.
1724 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
1726 Restructure the code a bit. Test hard_regs_saved instead of
1727 hard_regs_need_restore.
1728 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
1729 args. All callers changed.
1730 Restructure the code a bit. Use TO_SAVE to determine which regs to
1731 save instead of more complicated test.
1732 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
1734 Create a new insn_chain structure for the new insn and place it
1737 * rtl.texi: Update documentation to reflect that reload no longer
1738 puts modes on the insns.
1740 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1742 * function.c (purge_addressof_1): Force the first argument of a
1743 CALL insn to memory.
1745 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
1747 * rtl.h: Delete duplicate prototypes. Add some missing
1749 * rtlanal.c: (for_each_rtx): Formatting tweak.
1751 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1753 * real.c (emdnorm and etoasc): Disable round to even for c4x target
1754 to be compatible with TI compiler.
1756 * Makefile.in (USER_H): Add va-c4x.h to definition.
1758 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
1760 * function.c (purge_addressof_1): Fix typo in inequality: do
1761 bitfield optimization for equal mode sizes.
1762 * expmed.c (store_bit_field): Don't take subregs of subregs in
1763 the movstrict case. Tidy a potential problem in the multi-word case.
1764 (extract_bit_field): Likewise.
1766 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1768 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
1770 Compute max_uid_for_flow by calling get_max_uid after the scan.
1771 (find_basic_blocks_1): Don't emit NOPs here.
1773 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
1775 * alias.c (base_alias_check): Accept new args for the modes of the
1776 two references. Use them to determine if an AND can overlap. Update
1778 (memrefs_conflict_p): Assume sizes are aligned, and uses them
1779 to determine if an AND can overlap.
1781 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
1783 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
1784 check. Add comment to document problems with TARGET_SUN_FPA version
1786 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
1788 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1790 * Makefile.in (gencheck.o): Depend on gansidecl.h.
1792 * c-common.c (print_char_table): Add missing initializers.
1793 (scan_char_table): Likewise.
1794 (time_char_table): Likewise.
1796 * c-decl.c (c_decode_option): Mark parameter `argc' with
1798 (declare_parm_level): Mark parameter `definition_flag' with
1801 * c-lex.c (readescape): Use `(unsigned)1' in shift.
1802 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
1805 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
1807 (emit_call_1): Mark parameters `fndecl' and `funtype' with
1809 (expand_call): Cast result of MIN() to (unsigned int) when
1810 comparing against an unsigned value.
1812 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
1814 (make_definition): Remove unused parameter `op'. All callers
1816 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
1817 comparing against the result of pointer arithmetic.
1819 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
1820 when comparing against one.
1822 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
1823 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
1825 (output_die): Move variable `i' into the scope in which it is
1826 used. Change its type to `unsigned'.
1827 (output_die): Cast the result of `strlen' to (int) when passing it
1828 to ASM_OUTPUT_ASCII().
1829 (output_pubnames): Likewise.
1830 (output_line_info): Likewise.
1832 * emit-rtl.c (global_rtl): Add missing initializers.
1834 * explow.c (promote_mode): Mark parameter `for_call' with
1837 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
1838 `unsigned HOST_WIDE_INT' when comparing against one.
1839 (synth_mult): Change type of variable `cost' to int.
1840 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
1842 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
1843 when comparing against one.
1844 (get_inner_reference): Change variable `alignment' to unsigned.
1845 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
1846 int) when comparing against one.
1847 (expand_builtin_setjmp): Change type of variable `i' to size_t.
1849 * fold-const.c (div_and_round_double): Cast BASE to
1850 (HOST_WIDE_INT) when comparing against one.
1852 * gencheck.c: Include gansidecl.h.
1853 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
1855 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
1856 `tcode' with ATTRIBUTE_UNUSED.
1858 * real.c (edivm): Cast constant value to (unsigned long) in
1859 expression compared against an unsigned value.
1861 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
1862 comparing against one.
1863 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
1864 when comparing against one.
1866 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
1867 (unsigned int) when comparing against one. Likewise for
1869 (smallest_mode_for_size): Likewise.
1870 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
1871 (restore_storage_status): Likewise.
1873 * toplev.c (debug_args): Add missing initializer.
1874 (f_options): Spelling correction. Add missing initializers.
1875 (documented_lang_options): Likewise.
1876 (debug_end_source_file): Mark parameter `lineno' with
1879 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
1880 `decl' and `type' with ATTRIBUTE_UNUSED.
1882 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
1883 when comparing against one.
1884 (assemble_variable): Mark parameter `top_level' with
1886 (assemble_external_libcall): Mark parameter `fun' with
1888 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
1891 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
1893 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
1894 Replace use of r5 with use of r19.
1896 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
1898 * config/v850/v850.c (compute_register_save_size): Allow for the
1899 fact that helper functions save all registers, not just those used
1902 Replace constant 31 with macro LINK_POINTER_REGNUM.
1904 * config/v850/v850.md: Use 'indirect_operand' rather than
1905 'memory_operand' for bit test/set/clear patterns.
1907 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
1909 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
1910 * varasm.c (assemble_start_function et al): Don't call
1911 ASM_GLOBALIZE_LABEL for weak symbols.
1913 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
1915 * cse.c (equiv_constant): Check for NULL return from
1916 gen_lowpart_if_possible().
1918 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
1920 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
1922 * collect2.c (main): Pass -EL/-EB through to the compiler.
1924 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1926 * expr.c (push_block): Handle targets where the stack grows
1927 to higher addresses, but args grow to lower addresses and
1928 ACCUMULATE_OUTGOING_ARGS is not defined.
1930 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
1932 * config/v850/v850.c (print_operand): Extend meaning
1933 of 'c' operands to support .vtinherit.
1935 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1937 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
1938 Added ATTRIBUTE_UNUSED to unused function arguments.
1939 (rc_reg_operand): New predicate.
1940 (c4x_rptb_insert): New function.
1941 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
1942 (c4x_optimization_options): New function.
1944 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
1945 (decrement_and_branch_on_count): New pattern.
1946 (rptb_top): Modified pattern to work with BCT optimization.
1948 * config/c4x/c4x.h (RC_REG): New register class.
1949 (rc_reg_operand): Define prototype.
1950 (IS_RC_REG): New macro.
1951 (IS_RC_OR_PSEUDO_REG): New macro.
1952 (IS_RC_OR_PSEUDO_REGNO): New macro.
1953 (OPTIMIZATION_OPTIONS): Define.
1955 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
1957 * collect2.c (extract_init_priority): No priority is 65535.
1959 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1961 * Makefile.in (build_tooldir): new variable, same as old
1962 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
1963 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
1964 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
1966 * configure.in (gxx_include_dir): set default based on unlibsubdir
1967 * Makefile.in (tooldir): ditto
1968 (cccp.o, cpplib.o): use unlibsubdir implicitly through
1969 gxx_include_dir, includedir and tooldir
1970 (protoize.o, unprotoize.o): ditto
1972 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
1974 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
1976 * config/arm/thumb.c (thumb_override_options): Add warning about
1977 PIC code not being supported just yet.
1979 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
1981 * flow.c: Update comment.
1982 (notice_stack_pointer_modification): New static function.
1983 (record_volatile_insns): Use it.
1984 (mark_regs_live_at_end): Mark the stack pointer as alive
1985 at the end of the function if current_function_sp_is_unchanging
1987 (life_analysis_1): Set current_function_sp_is_unchanging.
1988 * function.c: Define it.
1989 (init_function_start): Initialize it.
1990 * output.h: Declare it.
1991 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
1992 the stack pointer as alive at the end of the function if
1993 current_function_sp_is_unchanging is set.
1994 * i386.c (ix86_epilogue): Optimize the restoring
1995 of the stack pointer.
1997 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
1999 * version.c: Bump for snapshot.
2001 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
2003 * c-pragma.c (handle_pragma_token): If passed a token instead
2004 of a tree, use that as the pack value.
2006 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
2008 * flow.c (find_basic_blocks_1): Fix prototype.
2010 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
2012 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
2013 (struct tree_decl): New fields no_check_memory_usage.
2014 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
2015 (init_attributes): Register it as a new attribute.
2016 (decl_attributes): Set flags on functions given that attribute.
2017 * c-decl.c (duplicate_decls): Merge new attribute.
2018 * expr.h (current_function_check_memory_usage): Declare new var.
2019 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
2020 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
2021 current_function_check_memory_usage.
2022 * function.h: Add field to struct function.
2023 * function.c (current_function_check_memory_usage): Define it.
2024 (push_function_context_to, pop_function_context_from): Save and
2026 (expand_function_start): Set it, based on global flag and function
2029 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
2030 check non-automatic variables, to permit detection of writes to
2031 read-only locations in embedded systems without memory management.
2032 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
2033 when emitting chkr_set_right_libfunc call, even if the argument is
2034 BLKmode or variable-sized; don't abort.
2036 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
2037 symbols in Pmode, not VOIDmode.
2039 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2041 * cppexp.c: When forcing unsigned comparisons, cast both sides
2044 * cpphash.h: Move static declaration of hashtab[]...
2045 * cpphash.c: ...here.
2047 * cpplib.c: Cast difference of two pointers to size_t before
2048 comparing it to size_t. Cast signed to unsigned
2049 before comparing to size_t. (FIXME: struct argdata should use
2050 unsigned buffer sizes.)
2051 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
2052 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
2053 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
2054 size_t before comparison.
2056 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
2058 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
2059 (find_basic_blocks_1): Similarly.
2060 * output.h (find_basic_blocks): Fix prototype.
2061 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
2062 find_basic_blocks anymore.
2064 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
2066 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
2067 (sbitmap_free, sbitmap_vector_free): New macros.
2068 * output.h (rtl_dump_file): Declare.
2070 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
2072 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
2074 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2076 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
2078 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
2079 (divide): Remove unused variable `tmp'.
2080 (si_to_float): Cast numeric constant to (SItype) before comparing
2083 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
2085 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
2086 * gcc.c (add_preprocessor_option): Correct typo when allocating
2087 memory, sizeof() argument had one too many `*'.
2088 (add_assembler_option): Likewise.
2089 (add_linker_option): Likewise.
2090 * gcov.c (output_data): Likewise.
2091 * local-alloc.c (memref_used_between_p): Likewise.
2092 (update_equiv_regs): Likewise.
2093 * loop.c (strength_reduce): Likewise.
2094 * reg-stack.c (record_asm_reg_life): Likewise.
2095 (subst_asm_stack_reg): Likewise.
2096 * reorg.c (dbr_schedule): Likewise.
2098 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2100 * flow.c (life_analysis_1): Break out some functions.
2101 (find_basic_blocks_1): Likewise. Also move some variables out and
2103 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
2104 new static var nonlocal_label_list with it.
2105 (active_eh_region, nested_eh_region, label_value_list,
2106 nonlocal_label_list): New static variables.
2107 (make_edges, delete_unreachable_blocks, delete_block): New static
2108 functions, broken out of find_basic_blocks_1.
2109 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
2110 noop_move_p): New static functions, broken out of life_analysis_1.
2112 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
2114 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
2115 Take extra care for op0 now possibly being a subreg.
2116 (extract_bit_field): Likewise.
2117 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
2118 the reg to memory if there is no equal sized integral mode.
2119 * stor-layout.c (int_mode_for_mode): New function.
2120 * machmode.h: Prototype it.
2122 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
2124 * global.c (build_insn_chain): Verify no real insns exist past the
2125 end of the last basic block, then exit the loop.
2127 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2129 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
2131 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
2133 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
2135 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
2137 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
2139 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
2141 * flow.c (find_basic_blocks): Correctly determine when a call
2142 is within an exception region.
2144 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
2146 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
2148 * cpplib.h: Protect from multiple inclusions.
2149 * cpplib.c: Fix minor formatting problems.
2151 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
2153 * jump.c (jump_optimize): Revert accidental patch.
2155 * Makefile.in (cpplib.o): Use unlibsubdir.
2157 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
2159 * loop.c (get_condition): Allow combine when either compare is
2162 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
2164 * version.c: Bump for snapshot.
2166 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
2168 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
2169 (init_lex): Initialize ridpointers[RID_BYREF].
2170 * c-lex.h (enum rid): Add RID_BYREF.
2171 * c-parse.gperf: Add RID_BYREF as a type qualifier.
2172 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
2173 (encode_type_qualifiers): Similarly
2174 * c-gperf.h: Rebuilt.
2176 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
2178 * c-common.c (type_for_mode): Only return TItype nodes when
2179 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2180 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
2181 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2182 (init_decl_processing): Only create TItype nodes when
2183 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2184 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
2185 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2187 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2189 * stmt.c (n_occurrences): New static function.
2190 (expand_asm_operands): Verify that all constrains match in the
2191 number of alternatives.
2192 Verify that '+' or '=' are at the beginning of an output constraint.
2193 Don't allow '&' for input operands.
2194 Verify that '%' isn't written for the last operand.
2195 * reload.c (find_reloads): Abort if an asm is found with invalid
2196 constraints; all possible problems ought to be checked for earlier.
2198 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2200 * flags.h (flag_branch_on_count_reg): Always declare
2201 * toplev.c (flag_branch_on_count_reg): Likewise.
2202 * toplev.c: Fix typos.
2204 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
2207 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
2209 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
2211 (find_basic_blocks_1): Add a nop to the end of a basic block when
2212 a trailing call insn does not have abnormal control flow.
2213 * gcse.c (pre_transpout): New variable.
2214 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
2215 (compute_pre_transpout): Calculate it.
2216 (compute_pre_ppinout): Use it to eliminate impossible placements
2217 due to abnormal control flow through calls.
2218 (compute_pre_data): Call compute_pre_transpout.
2220 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2222 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
2224 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
2226 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
2227 and matching define_insns): Tack on a `use' of the table label, so
2228 flow analysis will recognize a tablejump.
2230 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
2232 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
2233 always end basic blocks for abnormal edge reasons.
2235 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
2237 * config/i386/i386.h: Remove definition of
2238 HANDLE_PRAGMA_PACK_PUSH_POP.
2240 * config/i386/go32.h: Add definition of
2241 HANDLE_PRAGMA_PACK_PUSH_POP.
2243 * config/i386/win32.h: Add definition of
2244 HANDLE_PRAGMA_PACK_PUSH_POP.
2246 * config/i386/cygwin32.h: Add definition of
2247 HANDLE_PRAGMA_PACK_PUSH_POP.
2249 * c-pragma.c (insert_pack_attributes): Do not insert
2250 attributes unless #pragma pack(push,<n>) is in effect.
2252 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
2254 * expr.c (emit_group_store): Handle a PARALLEL destination.
2256 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
2258 * gcse.c (pre_insert_insn): When a call ends a bb, insert
2259 the new insns before the argument regs are loaded.
2261 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2263 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
2264 (c-parse.gperf): Update comments describing invocation flags.
2265 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
2267 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
2269 * reload1.c (reload): Call free before clobbering the memory
2270 locations or constants pointers.
2272 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2274 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
2275 for efficiency by checking whether we need to modify the current
2276 stack permission at all.
2277 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
2278 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
2279 __enable_execute_stack libcall here too if
2280 TRANSFER_FROM_TRAMPOLINE is defined.
2281 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
2284 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
2286 * Makefile.in (DRIVER_DEFINES): Remove last change.
2288 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2290 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
2291 insns we're going to copy.
2292 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
2294 * loop.c (count_one_set): Add prototype.
2296 * caller-save.c (restore_referenced_regs): Lose mode argument.
2297 (insert_save): Lose mode argument.
2298 (insert_restore): Lose mode argument.
2299 (insert_one_insn): Lose mode argument.
2300 (save_call_clobbered_regs): Lose mode argument.
2301 (setup_save_areas): Take no argument and return void. All callers
2303 Don't verify validity of memory addresses.
2304 * reload.h (setup_save_ares): Adjust prototype.
2305 (save_call_clobbered_regs): Likewise.
2306 * reload1.c (delete_caller_save_insns): New function.
2307 (caller_save_spill_class): Delete variable.
2308 (caller_save_group_size): Delete variable.
2309 (reload): Call setup_save_areas and save_call_clobbered_regs
2310 in the main loop, before calling calculate_needs_all_insns.
2311 Don't call save_call_clobbered_regs after the loop.
2312 Call delete_caller_save_insns at the end of an iteration if
2314 Delete code to manage caller_save_spill_class.
2315 Emit the final note before setting reload_first_uid.
2316 Simplify test that determines whether reload_as_needed gets run.
2317 (calculate_needs): Delete code to manage caller_save_spill_class.
2319 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
2321 * collect2.c (main): Initialize ld_file_name.
2323 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
2325 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
2326 check for flag_function_sections.
2328 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2330 * cse.c (insert_regs): Fix bug in Sep 24 change.
2332 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2334 * flags.h (flag_dump_unnumbered): Declare.
2335 * toplev.c (flag_dump_unnumbered): Don't declare.
2336 * print-rtl.c (flags.h): Include.
2337 (print_rtl_single): Add return value.
2338 * rtl.h (print_rtl_single): Update declaration.
2339 * flow.c (flag_dump_unnumbered): Don't declare.
2340 (print_rtl_with_bb): Use return value of print_rtl_single.
2342 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2344 * loop.c (count_one_set): New static function, broken out of
2346 (count_loop_regs_set): Call it.
2347 * global.c (mark_reg_store): Handle clobbers here by not calling
2349 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
2350 is in fact a clobber.
2351 * integrate.c (process_reg_param): New function, broken out of
2352 expand_inline_function.
2353 (expand_inline_function): Call it.
2356 * i386.md (addsidi3_1): Delete unused variable temp.
2357 (addsidi3_2): Likewise.
2358 (clstrstrsi): Delete unused variable addr1.
2360 * rtl.h: Don't declare any functions also declared in recog.h.
2362 * Makefile.in (stupid.o): Update dependencies.
2363 (global.o): Likewise.
2365 * global.c: Include reload.h
2366 (reg_becomes_live): New function.
2367 (reg_dies): New function.
2368 (build_insn_chain): New function.
2369 (global_alloc): Call build_insn_chain before calling reload.
2371 * reload.h (struct needs): New structure definition.
2372 (struct insn_chain): Likewise.
2373 (reload_insn_chain): Declare variable.
2374 (new_insn_chain): Declare function.
2377 * reload1.c (reload_startobj): New variable.
2378 (reload_insn_chain): New variable.
2379 (unused_insn_chains): New variable.
2380 (new_insn_chain): New function.
2381 (init_reload): Initialize reload_startobj, not reload_firstobj.
2382 (reload): Initialize reload_firstobj.
2383 Before returning, free everything on the reload_obstack.
2385 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
2386 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
2387 current_chain): New variables.
2388 (reg_where_born): Delete variable.
2389 (REG_WHERE_BORN): New macro.
2390 (find_clobbered_regs): New function.
2391 (stupid_life_analysis): Don't allocate/free reg_where_born.
2392 Allocate and free reg_where_born_exact, reg_where_born_clobber,
2393 reg_where_dead_chain.
2394 Use REG_WHERE_BORN instead of reg_where_born.
2395 While processing the insns, build the reload_insn_chain with
2396 information about register lifetimes.
2397 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
2398 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
2400 Compute and information about birth and death of pseudo registers in
2401 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
2402 Delete code to set elements of reg_where_born.
2404 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2406 * tree.def (GOTO_EXPR): Modified documentation.
2407 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
2410 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
2412 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
2413 loop_final_value, loop_comparison_code): No longer static.
2414 (unroll_loop): Delete loop_start_value update.
2415 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
2416 loop_final_value, loop_comparison_code): Extern.
2417 (loop_start_value): Delete extern.
2418 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
2419 loop_comparison_value, loop_comparison_code): Delete.
2420 (loop_optimize): Remove initialization for deleted variables.
2421 (strength_reduce): Delete analyze_loop_iterations call. Only call
2422 insert_bct if flag_branch_count_on_reg set.
2423 (analyze_loop_iterations): Delete.
2424 (insert_bct): Remove iteration count calculation. Move checks for
2425 viable BCT optimization to here. Obtain iteration count from
2426 loop_iterations and correct for unrolling. Check for enough
2427 iteration to be beneficial. Comment out runtime iteration count
2429 (insert_bct): Print iteration count in dump file. Remove
2430 loop_var_mode and use word_mode directly.
2432 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
2433 * rs6000.c (rs6000_override_options): Use it.
2434 (optimization_options): Enable use of flag_branch_on_count_reg.
2435 * rs6000.md (define_function_unit): Describe 604e.
2437 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2439 * loop.c (move_movables): Corrected threshold calculation for
2440 moved_once registers.
2442 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2444 * loop.c (combine_givs_p): Fix test for identical givs.
2446 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
2448 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
2449 call abort if the function is already defined.
2451 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
2453 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
2454 truncation is not a no-op.
2456 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
2458 * version.c: Bump for snapshot.
2460 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
2462 * version.c: Bump for snapshot.
2464 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
2466 * expmed.c (expand_divmod): Don't widen for computing remainder
2467 if we seem to have a divmod pattern for needed mode.
2469 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2471 * cpplib.c (macroexpand): Correct off-by-one error in handling
2474 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
2476 * combine.c (expand_field_assignment): Don't do bitwise operations
2477 on MODE_FLOAT; pun to MODE_INT if possible.
2479 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
2480 scott snyder <snyder@d0sgif.fnal.gov>
2482 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
2483 linker. Recognize mangled names in quotes.
2485 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2487 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
2488 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
2489 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
2490 (lshrsi3_extend, lshrsi3_extend2): Ditto.
2492 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2494 * function.c (purge_addressof_1): If trying to take a sub-word
2495 integral piece of a floating point mode, put it on the stack.
2497 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
2499 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
2501 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
2503 * PROJECTS: Remove template friends.
2505 * collect2.c (sort_ids): Remove unused variable.
2507 * tm.texi (MATH_LIBRARY): Document.
2508 (NEED_MATH_LIBRARY): Remove.
2510 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
2511 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
2513 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
2515 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
2516 last_end to 0x7fffffff.
2518 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2520 * function.c (purge_addressof_1): Do not perform endianness
2521 corrections on bitpos, who we call will do it for us.
2523 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
2525 * h8300.c (WORD_REG_USED): Fix typo.
2526 (initial_offset): Use WORD_REG_USED.
2528 * h8300.c (handle_pragma): Fix typo.
2530 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2532 * caller-save.c (insert_save_restore): Break this function up
2533 into new functions insert_restore, insert_save and insert_one_insn.
2534 All callers changed.
2535 (insert_restore): New function, mostly broken out of
2536 insert_save_restore.
2537 (insert_save): Likewise.
2538 (insert_one_insn): Likewise.
2539 (restore_referenced_regs): New argument BLOCK. All callers changed.
2540 (save_call_clobbered_regs): Don't keep track of basic block boundaries
2541 in this function, do it in insert_one_insn instead.
2543 * reload1.c (reload): Break out some more pieces into separate
2545 (dump_needs): New function, broken out of reload.
2546 (set_initial_elim_offsets): Likewise.
2547 (init_elim_table): Likewise.
2548 (update_eliminables): Likewise.
2550 * global.c (global_alloc): Delete code to manage the scratch_list.
2551 * local-alloc.c (qty_scratch_rtx): Delete.
2552 (scratch_block): Delete.
2553 (scratch_list): Delete.
2554 (scratch_list_length): Delete.
2555 (scratch_index): Delete.
2556 (alloc_qty_for_scratch): Delete.
2557 (local-alloc): Update initialization of max_qty.
2558 Delete code to manage the scratch list.
2559 Delete code to allocate/initialize qty_scratch_rtx.
2560 (block_alloc): Don't allocate quantities for scratches.
2561 Delete code to manage the scratch list.
2562 * regs.h (scratch_list): Delete declaration.
2563 (scratch_block): Delete declaration.
2564 (scratch_list_length): Delete declaration.
2565 * reload1.c (reload): Delete code to manage the scratch list.
2566 (spill_hard_reg): Likewise.
2567 (mark_scratch_live): Delete.
2569 * recog.c (alter_subreg): Delete declaration.
2571 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2573 * Makefile.in (cccp.o): Fix typo in last patch.
2575 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2577 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
2578 * config/sh/lib1funcs.asm (___set_fpscr): Add.
2580 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
2582 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
2583 NULL_RTX as an argument.
2585 * Makefile.in (unlibsubdir): Define.
2586 (DRIVER_DEFINES): Use unlibsubdir.
2587 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
2588 (stmp-fixinc): Similarly.
2590 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2592 * regmove.c (regmove_optimize): Add variable old_max_uid.
2593 At the end of the function, update basic_block_end.
2595 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2597 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
2598 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
2601 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
2603 * config/arm/arm.c: Improve interworking support.
2605 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2607 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
2608 copied from reload_out[r] .
2610 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
2612 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
2613 with more than three size ranges.
2615 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
2617 * rtl.c (mode_name): Add a null string at the end of the array.
2618 (mode_wider_mode): Change type to unsigned char.
2619 (mode_mask_array): New variable.
2620 (init_rtl): Update for mode_wider_mode type change.
2622 * rtl.h (mode_wider_mode): Change type to unsigned char.
2623 (mode_mask_array): Declare.
2624 (GET_MODE_MASK): Use mode_mask_array.
2626 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
2628 * calls.c (expand_call) : Encapsulate code into
2629 copy_blkmode_from_reg.
2630 * expr.c (copy_blkmode_from_reg): New function.
2631 * expr.h (copy_blkmode_from_reg): New function.
2632 * integrate.c (function_cannot_inline_p): We can inline
2634 (expand_inline_function): Use copy_blkmode_from_reg
2635 if needed. Avoid creating BLKmode REGs.
2636 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
2639 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
2641 * config/v850/v850.c: Add function prototypes.
2642 Add support for v850 special data areas.
2644 * config/v850/v850.h: Add support for v850 special data areas.
2646 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
2647 HANDLE_PRAGMA_PACK_PUSH_POP.
2648 (push_alignment): New function: Cache an alignment requested
2649 by a #pragma pack(push,<n>).
2650 (pop_alignment): New function: Pop an alignment from the
2652 (insert_pack_attributes): New function: Generate __packed__
2653 and __aligned__ attributes for new decls whilst a #pragma pack
2655 (add_weak): New function: Cache a #pragma weak directive.
2656 (handle_pragma_token): Document calling conventions. Add
2657 support for #pragma pack(push,<n>) and #pragma pack (pop).
2659 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
2660 are defined enable HANDLE_PRAGMA_PACK.
2661 Move 'struct weak_syms' here (from varasm.c).
2662 Add pragma states for push and pop pragmas.
2664 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
2667 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
2668 HANDLE_GENERIC_PRAGMAS.
2670 * varasm.c: Move definition of 'struct weak_syms' into
2672 (handle_pragma_weak): Deleted.
2674 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2676 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2678 * c-decl.c (start_function): Add invocation of
2679 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
2681 * tm.texi: Remove description of non-existant macro
2682 SET_DEFAULT_SECTION_NAME.
2684 (HANDLE_SYSV_PRAGMA): Document.
2685 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
2687 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
2689 * config.sub: Recognize i[34567]86-pc-udk as new target.
2690 * configure.in: Likewise.
2691 * config/i386/t-udk: New file.
2692 * config/i386/udk.h: New file.
2694 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
2696 * reorg.c (check_annul_list_true_false): Remove unused variables.
2697 (steal_delay_list_from_target): Add missing "used_annul" variable.
2698 (try_merge_delay_insns): Close out half formed comment.
2700 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2702 * cpplib.c (macroexpand): If arg->raw_before or
2703 arg->raw_after, remove any no-reexpansion escape at the
2704 beginning of the pasted token. Correct handling of whitespace
2705 markers and no-reexpand markers at the end if arg->raw_after.
2707 * toplev.c (documented_lang_options): Recognize -include,
2708 -imacros, -iwithprefix, -iwithprefixbefore.
2709 * cpplib.c (cpp_start_read): Process -imacros and -include
2710 switches at the same time and in command-line order, after
2711 initializing the dependency-output code. Emit properly nested
2712 #line directives for them. Emit a #line for the main file
2713 before processing these switches, and don't do it again
2716 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
2718 * function.c (purge_addressof_1): Use bitfield manipulation
2719 routines to handle mem mode < reg mode.
2721 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2723 * reorg.c (try_merge_delay_insns): Account for resources referenced
2724 in each instruction in INSN's delay list before trying to eliminate
2725 useless instructions. Similarly when looking at a trial insn's delay
2728 * reorg.c (check_annul_list_true_false): New function.
2729 (steal_delay_list_from_{target,fallthrough}): Call it and also
2730 refine tests for when we may annul if already filled a slot.
2731 (fill_slots_from_thread): Likewise.
2732 (delete_from_delay_slot): Return newly-created thread.
2733 (try_merge_delay_isns): Use its new return value.
2735 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
2737 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
2738 used to compute a giv or as some other non-counting use.
2740 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2742 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2743 * local-alloc.c (find_free_reg): Use it.
2744 * global.c (find_reg): Likewise.
2745 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
2747 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
2748 * caller-save.c (init_caller_save): Use it.
2749 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
2751 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2753 * configure.in: Add --enable-cpplib option which uses cpplib
2754 for cpp, but doesn't link cpplib into cc1. Make help text
2755 capitalization consistent.
2756 * configure: Rebuilt.
2758 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
2760 * function.c (gen_mem_addressof): If the address REG is
2761 REG_USERVAR_P make the new REG be so also.
2762 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
2763 in an attempt to clarify slightly.
2765 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
2767 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
2768 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
2770 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
2772 * toplev.c: Fix last patch.
2774 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
2776 * loop.c (get_condition): Fix typo in May 9 change.
2778 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2780 * invoke.texi (-fexceptions): Merge 2 different descriptions.
2782 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2784 * toplev.c (documented_lang_options): Spelling corrections.
2786 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2788 * configure.in: new flags --with-ld and --with-as, equivalent
2789 to setting LD and AS environment variables. Test whether
2790 specified arguments are GNU commands, and report them with
2791 checking messages. Use the specified AS for configure
2794 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
2796 * gcc.c (find_a_file): when looking for `as' and `ld', return
2797 the DEFAULT program if it exists
2798 * collect2.c (main): use DEFAULT_LINKER if it exists
2800 * gcc.c (find_a_file): the test for existence of a full
2801 pathname was reversed
2803 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
2805 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
2806 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
2808 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
2810 * tree.h (TYPE_BINFO): Document.
2812 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
2814 * i386-coff.h (dbxcoff.h): Added.
2816 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
2818 * toplev.c: fix bad patch around flag_data_sections.
2820 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
2822 * reload1.c (reload): Use reload_address_index_reg_class and
2823 reload_address_base_reg_class when setting
2824 caller_save_spill_class. (Patch generated by Jim Wilson:
2827 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
2829 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
2830 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
2831 * expr.c (store_field): Add alias_set parameter. Set the
2832 MEM_ALIAS_SET accordingly, if the target is a MEM.
2833 (expand_assignment): Use it.
2834 (store_constructor_field): Pass 0.
2835 (expand_expr): Likewise.
2837 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
2839 * flags.h: Add flag_data_sections.
2840 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
2841 (compile_file): Error if flag_data_sections not supported.
2842 * varasm.c (assemble_variable): Handle flag_data_sections.
2843 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
2844 * config/mips/elf.h: Likewise.
2845 * config/mips/elf64.h: Likewise.
2846 * invoke.texi: Describe -fdata-sections.
2848 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
2850 * invoke.texi (-ffloat-store): Clarify that this option
2851 does not affect intermediate results -- only variables.
2853 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
2855 * cpp.texi: Update for Fortran usage from Craig.
2857 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2859 * rs6000.c (function_arg_boundary): Revert accidental change on
2862 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
2864 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
2865 (output_mi_thunk): Declare.
2867 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
2868 (output_function_profiler): Use r12 for temp, instead of r11 so
2869 that we preserve the static chain register.
2871 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
2873 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
2875 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2877 * sh.c (gen_shl_sext): Fix case 5.
2879 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2881 * reload1.c (reload_combine): Re-add line that got accidentally lost.
2883 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2885 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
2886 accessing variables until they are initialized via va_arg().
2888 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2890 * reload1.c (reload_combine): Initialize set before using.
2892 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
2894 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
2897 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
2899 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
2900 operand3 with mask before using it. Patch provided by Jim Wilson.
2902 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2904 * config/sparc/sparc.c (function_value): Perform the equivalent of
2905 PROMOTE_MODE for ARCH64.
2906 (eligible_for_epilogue_delay): Allow DImode operations in delay
2907 slot of a return for ARCH64.
2909 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2911 * sh.md (sqrtsf2): Fix mode of sqrt.
2913 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2915 * reload1.c (choose_reload_regs): Also try inheritance when
2916 reload_in is a stack slot of a pseudo, even if we already got a
2919 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2921 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
2922 (reload_cse_regs): New function body: call reload_cse_regs_1,
2923 reload_combine, reload_cse_move2add.
2924 When doing expensive_optimizations, call reload_cse_regs_1 a
2925 second time after reload_cse_move2add.
2926 (reload_combine, reload_combine_note_store): New functions.
2927 (reload_combine_note_use): New function.
2928 (reload_cse_move2add, move2add_note_store): New functions.
2930 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2932 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
2933 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
2935 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
2936 more than 3 such reloads.
2938 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
2939 RELOAD_FOR_X_ADDR_ADDR reload.
2941 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2943 * expr.c (store_constructor): When initializing a field that is smaller
2944 than a word, at the start of a word, try to widen it to a full word.
2946 * cse.c (cse_insn): When we are about to change a register,
2947 remove any invalid references to it.
2949 (remove_invalid_subreg_refs): New function.
2950 (mention_regs): Special treatment for SUBREGs.
2951 (insert_regs): Don't strip SUBREG for call to mention_regs.
2952 Check if reg_tick needs to be bumped up before that call.
2953 (lookup_as_function): Try to match known word_mode constants when
2954 looking for a norrower constant.
2955 (canon_hash): Special treatment for SUBREGs.
2957 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2959 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
2960 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
2961 defined, emit libcall to __enable_execute_stack. Also fix opcodes
2962 and offsets in actual stack trampoline code so they match the
2963 commentary and actually work.
2965 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2967 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
2969 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
2970 tmake_file. Set extra_parts to needed crt objects.
2971 * configure: Rebuilt.
2972 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
2973 (TARGET_DEFAULT): Set if default is v9 or ultra.
2974 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
2975 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
2976 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
2977 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
2978 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
2979 (TARGET_VERSION): Define.
2980 (MULTILIB_DEFAULT): Define.
2981 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
2982 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
2983 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
2985 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
2986 * config/sparc/sparc.c (sparc_override_options): If arch and
2987 pointer size disagree, emit diagnostic and fix it up. If
2988 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
2989 V8PLUS in 64-bit mode.
2990 * config/sparc/t-linux64: New file.
2991 * config/sparc/t-sol2-64: New file.
2992 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
2993 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
2994 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
2995 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
2996 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
2997 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
2999 (STARTFILE_SPEC): Set approriately based upon those.
3000 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
3001 disposition of DEFAULT_ARCH32_P.
3002 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
3003 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
3004 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
3005 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
3006 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
3008 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
3010 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
3012 * rtl.h (init_virtual_regs): New function.
3013 * emit-rtl.c (init_virtual_regs): Define.
3014 (insn_emit): Use it.
3015 * integrate.c (save_for_inline_copying): Likewise.
3017 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
3019 * config/arm/thumb.h: The following patches were made by Jim Wilson:
3020 (enum reg_class): Add NONARG_LO_REGS support.
3021 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
3022 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
3023 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
3024 completes. Re-enable HImode REG+OFFSET addresses.
3025 (LEGITIMIZE_RELOAD_ADDRESS): Define.
3027 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
3029 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
3031 * alpha.c (get_aligned_mem): Revert Sep 20 change.
3032 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
3033 (alpha_align_insns): Properly calculate initial offset wrt max_align.
3035 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
3037 * arm.c (find_barrier): Revert change of Apr 23. Handle table
3038 jumps as a single entity, taking into account the size of the
3041 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
3043 * tree.def (SWITCH_EXPR): New tree node definition.
3045 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
3047 * version.c: Bump for snapshot.
3049 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
3051 * version.c: Bump for snapshot.
3053 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
3055 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
3058 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
3060 * Revert this patch.
3061 * reload.c (find_reloads): Do not replace a pseudo with
3062 (MEM (reg_equiv_addr)) in the initializing insn for the
3065 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
3067 * final.c (final_scan_insn): Disable tracking CC across branches.
3069 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3071 * expr.h (eh_rtime_match_libfunc): New extern declaration.
3072 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
3073 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
3074 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
3075 NULL. Only include <stdio.h> if inhibit_libc is not defined.
3077 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
3079 * toplev.c (rest_of_compilation): Skip compiling anything with
3080 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
3082 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
3084 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
3085 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
3086 use in_libcall_block.
3087 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
3088 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
3091 Mon Sep 21 14:02:23 1998
3093 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
3094 typo in no-fancy-math-387 description.
3096 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
3098 * version.c: Bump for snapshot.
3100 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
3102 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
3104 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
3106 * i386.h: (TARGET_SWITCHES) Add description fields for flags
3107 documented in install.texi.
3108 (TARGET_OPTIONS) Likewise.
3110 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
3112 * version.c: Bump for snapshot.
3114 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
3116 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
3117 * cccp.c (main): Likewise.
3119 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
3120 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
3123 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
3125 * Makefile.in (LIBS): Link in libiberty.a.
3126 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
3128 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
3130 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
3131 it to update bb boundaries. Update caller.
3132 * function.c (reposition_prologue_and_epilogue_notes): Update
3133 bb boundaries wrt the moved note.
3135 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
3137 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
3139 * configure: Regenerate.
3141 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
3143 * alpha.c (alpha_sr_alias_set): New variable.
3144 (override_options): Set it.
3145 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
3146 (mode_mask_operand): Fix signed-unsigned comparision warning.
3147 (alpha_expand_block_move): Likewise.
3148 (print_operand): Likewise.
3149 (get_aligned_mem): Use change_address.
3150 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
3151 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
3152 (alphaev4_next_nop, alphaev5_next_nop): New functions.
3153 (alpha_align_insns): Remade from old alphaev5_align_insns
3154 to handle multiple processors.
3155 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
3156 * output.h (label_to_alignment): Prototype.
3158 * tree.c (new_alias_set): New function.
3159 * tree.h (new_alias_set): Declare it.
3160 * c-common.c (c_get_alias_set): Use it.
3162 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
3164 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
3165 to an ABS expr, convert an unsigned input to signed.
3167 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
3169 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
3171 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3173 * configure.in: Add support for c4x targets.
3174 * configure: Rebuilt.
3176 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
3178 * combine.c (distribute_notes): If an insn is a cc0 user, only
3179 delete it if we can also delete the cc0 setter.
3181 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
3183 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
3184 (invert_truthvalue): Enable truthvalue inversion for
3185 floating-point operands if -ffast-math.
3187 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
3189 * configure.in: Disable collect2 for nextstep. Instead use
3191 * configure: Rebuilt.
3192 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
3193 (ENDFILE_SPEC): Define.
3194 (OBJECT_FORMAT_MACHO): Define.
3195 (EH_FRAME_SECTION_ASM_OP): Define.
3196 * crtstuff.c: Handle MACHO.
3198 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
3200 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
3202 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
3204 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
3205 (_fpadd_parts): Get sign right for 0.
3207 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3209 * ginclude/varargs.h: Add support for C4x target.
3210 * ginclude/stdargs.h: Likewise.
3212 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
3214 * alpha.c (alpha_return_addr): SET should be VOIDmode.
3215 (alpha_emit_set_long_const): Rewrite to be callable from reload
3217 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
3218 * alpha.md (movdi): Likewise.
3220 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
3222 * arm.c (add_constant): New parameter address_only, change caller.
3223 Set it non-zero if taking the address of an item in the pool.
3224 (arm_reorg): Handle cases where we need the address of an item in
3227 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
3229 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
3230 memory addresses that are not in standard canonical form.
3232 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
3234 * README.C4X: New file with information about the c4x ports.
3235 * ginclude/va-c4x.h: New file for c4x varargs support.
3236 * config/c4x: New directory with c4x port files.
3238 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
3240 * reload.c (find_reloads): Do not replace a pseudo with
3241 (MEM (reg_equiv_addr)) in the initializing insn for the
3244 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
3246 * toplev.c (rest_of_compilation): Set bct_p on second call to
3248 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
3250 (strength_reduce): Only call analyze_loop_iterations and
3251 insert_bct if bct_p set.
3252 (check_dbra_loop): Fix typo.
3253 (insert_bct): Use word_mode instead of SImode.
3254 (instrument_loop_bct): Likewise. Do not delete iteration count
3255 condition code generation insn. Initialize iteration count before
3257 * rtl.h (loop_optimize): Update prototype.
3259 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
3260 not doubleword aligned.
3262 * rs6000.c (optimization_options): New function.
3263 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
3264 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
3265 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
3266 first; cr1 can be used for FP record condition insns.
3268 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
3270 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
3273 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
3276 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
3278 (block_move_call): New function: Call a library routine to copy a
3280 (m32r_expand_block_move): New function: Expand a "movstrsi"
3281 pattern into a sequence of insns.
3282 (m32r_output_block_move): New function: Expand a
3283 "movstrsi_internal" pattern into a sequence of assembler opcodes.
3284 (m32r_block_immediate_operand): New function: Return true if the
3285 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
3287 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3289 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
3291 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
3293 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3295 * regmove.c (copy_src_to_dest): Check that modes match.
3297 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
3299 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
3301 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
3303 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
3304 narrower than FLOAT_REGS.
3306 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3308 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
3310 * Makefile.in (old_gxx_include_dir): removed
3312 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
3314 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
3317 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
3318 (sh_handle_pragma): Change function arguments to match new
3319 specification for HANDLE_PRAGMA.
3321 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3323 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
3325 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
3326 When generating output, initialize missing struct member to zero.
3328 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3330 * regmove.c (copy_src_to_dest): Don't copy if that requires
3331 (a) new register(s).
3333 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3335 * global.c (reg_allocno): Now static.
3336 * reload1.c (reg_allocno): Delete declaration.
3337 (order_regs_for_reload): Take no arguments. Don't treat regs
3338 allocated by global differently than those allocated by local-alloc.
3340 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
3342 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
3343 condition, fix format strings.
3344 (output_function_epilogue): Likewise.
3346 * m68k/m68k.c: Don't include <stdlib.h> directly.
3348 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
3350 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
3351 mem_first_set, mem_last_set; because 0 can be a CUID.
3352 (oprs_unchanged_p): Use new definition.
3353 (record_last_reg_set_info): Likewise.
3354 (record_last_mem_set_info): Likewise.
3355 (compute_hash_table): Likewise.
3357 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
3359 * rs6000.c (output_epilogue): Handle Chill.
3361 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3362 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3364 * combine.c (make_extraction): If no mode is specified for
3365 an operand of insv, extv, or extzv, default it to word_mode.
3366 (simplify_comparison): Similarly.
3367 * expmed.c (store_bit_field): Similarly.
3368 (extract_bit_field): Similarly.
3369 * function.c (fixup_var_regs_1): Similarly.
3370 * recog.c (validate_replace_rtx_1): Similarly.
3371 * mips.md (extv, extzv, insv expanders): Default modes for most
3372 operands. Handle TARGET_64BIT.
3373 (movdi_uld, movdi_usd): New patterns.
3375 * pa.c (emit_move_sequence): Do not replace a pseudo with its
3376 equivalent memory location unless we have been provided a scratch
3377 register. Similarly do not call find_replacement unless a
3378 scratch register has been provided.
3380 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3382 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
3385 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
3387 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
3388 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
3389 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
3390 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
3391 * c-decl.c (init_decl_processing): Update accordingly.
3392 * expr.c (expand_builtin): Likewise.
3394 * rtl.h (global_rtl): Add cfa entry.
3395 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
3396 (LAST_VIRTUAL_REGISTER): Update.
3397 * emit-rtl.c (global_rtl): Add cfa entry.
3398 (init_emit): Initialize it.
3399 * function.c (cfa_offset): New.
3400 (instantiate_virtual_regs): Initialize it.
3401 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
3402 (expand_function_end): Call expand_eh_return.
3403 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
3405 * except.c (current_function_eh_stub_label): Kill.
3406 (current_function_eh_old_stub_label): Likwise; update all references.
3407 (expand_builtin_set_return_addr_reg): Kill.
3408 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
3409 (expand_builtin_set_eh_regs): Kill.
3410 (eh_regs): Produce a third reg for the actual handler address.
3411 (eh_return_context, eh_return_stack_adjust): New.
3412 (eh_return_handler, eh_return_stub_label): New.
3413 (init_eh_for_function): Initialize them.
3414 (expand_builtin_eh_return, expand_eh_return): New.
3415 * except.h: Update prototypes.
3416 * flow.c (find_basic_blocks_1): Update references to the stub label.
3417 * function.h (struct function): Kill stub label elements.
3419 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
3420 register number is one that would be in the previous window.
3421 Provide a dummy definition for non-windowed targets.
3422 (get_reg_addr): New function.
3423 (get_reg, put_reg, copy_reg): Use it.
3424 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
3425 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
3427 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
3428 (alpha_init_expanders): Initialize it.
3429 (alpha_expand_epilogue): Use it.
3430 * alpha.h: Declare it.
3431 * alpha.md (eh_epilogue): New.
3433 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
3434 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
3436 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
3438 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
3441 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3443 * except.h (struct eh_entry): Add false_label field.
3444 (end_catch_handler): Add prototype.
3445 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
3446 (start_catch_handler): When using old style exceptions, issue
3447 runtime typematch code before continuing with the handler.
3448 (end_catch_handler): New function, generates label after handler
3449 if needed by older style exceptions.
3450 (expand_start_all_catch): No need to check for new style exceptions.
3451 (output_exception_table_entry): Only output the first handler label
3452 for old style exceptions.
3453 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
3454 mechanism into one function, if a runtime matcher is provided.
3456 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3458 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
3460 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
3462 * integrate.c (copy_decl_list): Fix typo.
3464 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3466 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
3469 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
3471 * version.c: Bump for snapshot.
3473 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
3475 * version.c: Bump for snapshot.
3477 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
3479 * version.c: Bump for snapshot.
3481 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3483 * invoke.texi (C Dialect Options): Put back missing @end itemize.
3485 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3487 * configure.in: remove usage of `!' to negate the result of a
3488 command; some common shells do not support it
3490 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3492 * configure.in: in sparc9-sol2 config, use 'if test' not
3494 * configure: Rebuilt.
3496 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
3498 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
3499 (CPP_CPU_DEFAULT_SPEC): Likewise.
3500 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
3501 for arch64 libfuncs.
3503 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
3506 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3508 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
3510 * collect2.c: Don't declare `sys_siglist' here.
3511 (my_strsignal): Prototype and define new function. Use it in
3512 place of `sys_siglist' hacks.
3514 * mips_tfile.c: Likewise.
3516 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
3517 (GCC_NEED_DECLARATIONS): Likewise.
3519 * system.h (strsignal): Prototype it, if necessary.
3520 (sys_siglist): Declare it, if necessary.
3522 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3524 * loop.c (move_movables): While removing insn sequences, preserve
3525 the next pointer of the most recently deleted insn when we skip
3528 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
3530 * objc/config-lang.in: Do not output the name of the selected
3531 thread file when building the front-end. The Makefile for the
3532 runtime library will do this.
3534 * objc/Make-lang.in: Do not build the runtime library or install
3535 the Objective C header files. The Makefile for the runtime
3536 library will do this.
3538 * objc/Makefile.in (all.indirect): Only build the front-end.
3539 (compiler): Rename to `frontend'.
3540 (obj-runtime): Remove target.
3541 (copy-headers): Likewise.
3542 (clean): No need to remove `libobjc.a' any longer.
3544 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
3546 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
3547 supported with -mcpu=xxx.
3549 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3551 * flow.c (mark_set_1): Recognize multi-register structure return
3552 values in CALL insns.
3553 (mark_used_regs): Likewise.
3554 (count_reg_sets_1): Likewise.
3555 (count_reg_references): Likewise.
3556 * rtlanal.c (note_stores): Likewise.
3557 (reg_overlap_mentioned_p): Likewise.
3558 * haifa-sched.c (check_live_1): Likewise.
3559 (update_live_1): Likewise.
3560 (sched_analyze_1): Likewise.
3561 (sched_note_set): Likewise.
3562 (birthing_insn_p): Likewise.
3563 (attach_deaths): Likewise.
3565 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
3568 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
3570 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
3572 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3574 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
3576 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3578 * configure.in: Add check for GAS subsection -1 support.
3579 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
3580 * configure config.in: Rebuilt.
3581 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
3582 SImode is subsection -1 works, else use DImode.
3583 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
3584 subsection -1 works.
3585 * config/sparc/sparc.c (sparc_output_addr_vec,
3586 sparc_output_addr_diff_vec): Use them if defined.
3588 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
3590 * tree.h (DECL_ORIGIN): New macro.
3591 * integrate.c (copy_and_set_decl_abstract_origin): New function.
3592 (copy_decl_list): Use it.
3593 (integrate_parm_decls): Likewise.
3594 (integrate_decl_tree): Likewise.
3595 * dwarf2out.c (decl_ultimate_origin): Simplify.
3596 * dwarfout.c (decl_ultimate_origin): Likewise.
3597 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
3598 (pushdecl): Likewise.
3600 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
3602 * config/rs6000/rs6000.c (output_epilog): Add Java support.
3604 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
3606 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
3608 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
3610 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
3611 empty or has a single entry.
3613 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
3614 before calling reg_to_stack.
3616 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
3618 * alpha.c (alphaev5_insn_pipe): Abort on default case.
3619 (alphaev5_next_group): Swallow CLOBBERs and USEs.
3621 * c-tree.h (warn_long_long): Declare it.
3623 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
3625 * emit-rtl.c (gen_lowpart_common): Disable optimization of
3626 initialized float-int union if the value is a NaN.
3628 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
3630 * c-lex.c (real_yylex): Don't warn about long long constants if
3631 we're allowing long long
3633 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3635 * except.h (current_function_eh_stub_label): Declare.
3636 (current_function_eh_old_stub_label): Declare.
3637 * function.h (struct function): New members eh_stub_label and
3639 * except.c (current_function_eh_stub_label): New variable.
3640 (current_function_eh_old_stub_label): New variable.
3641 (init_eh_for_function): Clear them.
3642 (save_eh_status): Save them.
3643 (restore_eh_status): Restore them.
3644 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
3645 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
3646 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
3647 make an edge from the block that contains it to the block starting
3648 with the label if this label is one of the eh stub labels.
3649 If eh stub labels exist, show they are reachable from the last block
3652 * reload1.c (reload): Break out several subroutines and make some
3654 (calculate_needs_all_insns): New function, broken out of reload.
3655 (calculate_needs): Likewise.
3656 (find_reload_regs): Likewise.
3657 (find_group): Likewise.
3658 (find_tworeg_group): Likewise.
3659 (something_needs_reloads): New global variable, formerly in reload.
3660 (something_needs_elimination): Likewise.
3661 (caller_save_spill_class): Likewise.
3662 (caller_save_group_size): Likewise.
3663 (max_needs): Likewise.
3664 (group_size): Likewise.
3665 (max_groups): Likewise.
3666 (max_nongroups): Likewise.
3667 (group_mode): Likewise.
3668 (max_needs_insn): Likewise.
3669 (max_groups_insn): Likewise.
3670 (max_nongroups_insn): Likewise.
3671 (failure): Likewise.
3673 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
3675 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
3677 * loop.c (load_mems): Copy rtx for output mem.
3679 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
3681 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
3682 mips1 or mips2 either.
3684 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
3686 * pa.c (pa_reorg): New marking scheme for jumps inside switch
3688 (pa_adjust_insn_length): Update to work with new marking scheme
3689 for jumps inside switch tables.
3690 * pa.md (switch_jump): Remove pattern.
3691 (jump): Handle jumps inside jump tables.
3693 * Makefile.in (profile.o): Depend on insn-config.h
3695 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
3697 * iris6.h (DWARF2_UNWIND_INFO): Undef.
3699 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3701 Add preliminary native sparcv9 Solaris support.
3702 * configure.in: Recognize sparv9-*-solaris2*
3703 * configure: rebuilt
3704 * config.sub: Recognize sparcv9 just like sparc64.
3705 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
3706 config/sparc/sol2-cn.asm: Macroize so it can be shared between
3707 32-bit and 64-bit Solaris systems.
3708 * config/sparc/t-sol2: Assemble those with cpp.
3709 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
3710 (*TF*_LIBCALL): If ARCH64 use V9 names.
3711 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
3713 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3715 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
3716 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
3718 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
3720 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
3721 to Pmode if CASE_VECTOR_MODE is something else.
3723 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
3725 * prefix.c (update_path): Correctly handle cases where PATH is
3726 a substring of the builtin prefix, but specifies a different
3729 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3731 * expr.c: Corrected comment about what MOVE_RATIO does.
3732 * config/alpha/alpha.h: Ditto.
3733 * config/1750a/1750a.h: Ditto.
3734 * config/clipper/clipper.h: Ditto.
3735 * config/i386/i386.h: Ditto.
3737 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
3739 * configure.in (m68k-next-nextstep3*): Use collect2.
3740 Similarly for x86 NeXT configurations.
3741 * configure: Rebuilt.
3743 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
3745 * configure.in: Don't assume srcdir is .../gcc
3746 * configure: Rebuilt.
3748 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
3750 * global.c: Update comments.
3751 (global_alloc): Assign allocation-numbers
3752 even for registers allocated by local_alloc in case
3753 they are later spilled and retry_global_alloc is called.
3754 (mark_reg_store, mark_reg_clobber,
3755 mark_reg_conflicts, mark_reg_death): Always record a
3756 conflict with a pseudo register even if it has been
3757 assigned to a hard register.
3758 (dump_conflicts): Don't list pseudo registers already assigned to
3759 a hard register as needing to be allocated, but do list their
3761 * local-alloc.c: Update comment.
3763 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
3765 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
3766 * configure: Rebuilt.
3768 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
3770 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
3772 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
3773 for all targets that set -msoft-float.
3775 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3777 * toplev.c (print_switch_values): Make static to match prototype.
3779 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
3781 * configure.in: If we are unable to find the "gnatbind" program,
3782 then do not configure the ada subdir.
3783 * configure: Rebuilt.
3785 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
3787 * version.c: Bump for snapshot.
3789 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
3791 * version.c: Bump for snapshot.
3793 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3795 * Makefile.in (toplev.o): Depend on $(EXPR_H).
3796 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
3798 * gansidecl.h: Define ATTRIBUTE_NORETURN.
3800 * genattrtab.c: Have insn-attrtab.c include toplev.h.
3802 * genextract.c: Have insn-extract.c include toplev.h.
3804 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
3806 * toplev.c: Include expr.h.
3807 (really_sorry, fancy_abort): Remove prototypes.
3808 (set_target_switch): Add argument in prototype.
3809 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
3810 (v_really_sorry): Likewise.
3811 (print_version, print_single_switch, print_switch_values): Make
3812 static and add prototype arguments.
3813 (decl_printable_name): Add prototype arguments.
3814 (lang_expand_expr_t): New typedef.
3815 (lang_expand_expr): Declare as a lang_expand_expr_t.
3816 (incomplete_decl_finalize_hook): Add prototype argument.
3817 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
3818 (botch): Likewise for variable `s'.
3819 (rest_of_type_compilation): Mark variables `type' and `toplev'
3820 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
3821 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
3822 (display_help): Make variable `i' an `unsigned long'.
3823 (main): Remove unused parameter `envp'.
3824 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
3825 Cast -1 when comparing it with a `size_t'.
3827 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
3828 prototype with ATTRIBUTE_NORETURN.
3829 (fatal_insn_not_found, fatal_insn, really_sorry,
3830 push_float_handler, pop_float_handler): Add prototypes.
3831 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
3832 (do_abort, botch): Add prototypes.
3834 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
3836 * final.c (final): If a label is reached only from a single jump,
3837 call NOTICE_UPDATE_CC on the jump and its predecessor before
3838 emitting the insn after the label.
3840 * i386.h: Add AMD K6 support.
3841 Change TARGET_* macros to use table lookup.
3842 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
3843 (ADJUST_COST): Change definition to call function in i386.c.
3844 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
3845 * i386.c: Add AMD K6 support.
3846 Add constants for feature tests used by TARGET_* macros.
3847 (split_di): If before reload, call gen_lowpart and gen_highpart.
3848 (x86_adjust_cost): New function.
3849 (put_jump_code): New function.
3850 (print_operand): New codes 'D' and 'd'.
3851 * i386.md: New insn types. New insn attribute "memory".
3852 Redefine scheduling parameters to use new types and add AMD K6
3853 support. Explicitly set type of most insns.
3854 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
3855 Pro and K6 prefer movl $1,reg to incl reg.
3856 (adddi3, subdi3): Set cc_status.
3857 (DImode shift patterns): Change label counters from HOST_WIDE_INT
3858 to int; x86 can't have more than 2^31 DImode shifts per file.
3859 (setcc): Combine all setcc patterns. Allow writing memory.
3860 Combine all jump patterns using match_operator.
3861 (*bzero): Name pattern. Emit mutliple stos instructions when that
3862 is faster than rep stos.
3863 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
3866 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
3868 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
3871 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
3873 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
3874 not whatever we're generating now.
3876 * alpha.c (set_frame_related_p, FRP): New.
3877 (alpha_expand_prologue): Mark frame related insns.
3878 (alpha_expand_epilogue): Likewise, but with a null FRP.
3879 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
3880 * alpha.md (exception_receiver): New.
3881 * alpha/crtbegin.asm (.eh_frame): New beginning.
3882 (__do_frame_setup, __do_frame_takedown): New.
3883 * alpha/crtend.asm (.eh_frame): New ending.
3884 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
3885 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
3886 (ASM_FILE_START): Don't emit .file for dwarf2.
3888 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
3889 * rtl.c (reg_note_name): Likewise.
3890 * rtl.texi (REG_NOTES): Likewise.
3891 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
3894 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
3896 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
3897 * i386.md (movsf, movdf, movxf): Validate memory address returned
3898 from force_const_mem. Kill useless REG_EQUAL setting code.
3900 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
3902 * m68k.md (zero_extendsidi2): Fix typo.
3904 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
3906 * configure.in: Removed references to the removed file
3907 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
3908 * arm*-*-netbsd* and ns32k-*-netbsd*.
3909 * config/i386/xm-netbsd.h: Removed unnecessary file.
3910 * config/m68k/xm-netbsd.h: Likewise.
3911 * config/sparc/xm-netbsd.h: Likewise.
3912 * config/mips/xm-netbsd.h: Likewise.
3914 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
3916 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
3917 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
3919 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
3920 for exact section attributions.
3922 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
3924 * i386/crtdll.h (CPP_PREDEFINES): Define.
3926 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
3928 * m68k.md (5200 movqi): Do not allow byte sized memory references
3930 * m68k.c (output_move_qimode): Do not use byte sized operations on
3933 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
3934 explicit rules for building. Similarly for alloca, vfprintf,
3935 choose-temp and mkstemp, getopt, getopt1, and obstack.
3936 (INCLUDES): Add $(srcdir)/../include.
3937 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
3938 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
3940 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
3942 * gcc.c (do_spec_1): [case 'o'] Account for
3943 lang_specific_extra_outfiles.
3944 (main): Correctly clear all slots in outfiles for
3945 lang_specific_extra_outfiles. Set input_file_number before
3946 calling lang_specific_pre_link.
3948 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
3950 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
3952 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3954 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
3956 (sparc_output_deferred_case_vectors): If no work to do, return.
3957 Fix thinko in Sept 1 change.
3959 1998-09-03 SL Baur <steve@altair.xemacs.org>
3961 * Makefile.in: add semicolon in BISON definition for portability.
3963 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
3965 * config/nextstep.c (handle_pragma): Correct name of third
3968 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
3970 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
3971 * config/m32r/m32r.h: Make register 17 be fixed.
3972 * config/m32r/m32r.c: Use SImode for cc operations.
3974 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
3976 * invoke.texi (Warning Options): Add -Wnon-template-friend
3979 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
3981 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
3983 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
3985 * rs6000.md (movsf): Disable explicit secondary-reload-like
3986 functionality if TARGET_POWERPC64.
3987 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
3990 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
3992 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
3993 and term.h from fixinc.wrap.
3995 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3997 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
3998 safe to include both string.h and strings.h together.
3999 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
4000 which headers to search for function declarations. Continue to
4001 prefer string.h over strings.h when both are not acceptable.
4003 * acconfig.h (STRING_WITH_STRINGS): Add stub.
4005 * configure.in: Call GCC_HEADER_STRING.
4007 * system.h: Test STRING_WITH_STRINGS when deciding which headers
4008 to include. Continue to prefer string.h over strings.h when both
4011 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4013 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
4014 not assume top 32-bits of symbolic addresses are zero if
4017 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
4019 * ginclude/va-alpha.h: Protect entire second portion of the
4020 file against double inclusion.
4022 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
4024 Added support for the Boehm's garbage collector.
4025 * configure.in: Handle --enable-objc-gc.
4026 * configure: Rebuilt.
4027 * Makefile.in (CHECK_TARGETS): Add check-objc.
4028 (check-objc): New rule.
4029 * objc/Make-lang.in: Build a different Objective-C library that
4030 runs with the Boehm's collector.
4031 * objc/encoding.c (objc_round_acc_size_for_types): New function.
4032 * objc/encoding.c: Correctly compute the size of compound types in
4033 the presence of bitfields. Skip the variable name of the type if
4034 any. Added support for long long.
4035 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
4036 (_F_GCINVISIBLE): New mask.
4037 * objc/gc.c: New file. Compute the type memory mask associated with
4038 a class based on the runtime information.
4039 * objc/misc.c: Added the hooks that use the Boehm's collector
4040 allocation functions.
4041 * objc/objc-act.c (build_class_template): Generate a new class
4042 member (gc_object_type) to hold the class' type memory mask.
4043 (build_shared_structure_initializer): Initialize the new member to
4045 (encode_complete_bitfield): New function. Generate the new
4047 (encode_field_decl): Generate the new encoding only for the GNU
4049 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
4051 (class_get_gc_object_type): New function to mark a pointer instance
4052 variable as a weak pointer.
4053 * objc/objc-features.texi: New file.
4054 * objc/objc.h (gc_object_type): New class member.
4055 * objc/objects.c (class_create_instance): Create a typed memory
4056 object when compiled with Boehm's collector support.
4057 * objc/sendmsg.c (__objc_init_install_dtable): Call
4058 __objc_send_initialize instead of setting the initialize flag.
4059 (__objc_send_initialize): Call __objc_generate_gc_type_description
4060 to generate the class type memory mask. Rewrite the code that
4061 sends the +initialize so that it is called only once (bug report
4062 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
4063 * testsuite/objc: New testsuite for Objective-C type encoding.
4064 * testsuite/lib/objc-torture.exp: New file.
4065 * testsuite/lib/objc.exp: New file.
4067 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
4069 * jump.c (jump_optimize): In if/then/else transformations, add
4070 another call to modified_between_p for the jump insn.
4072 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
4074 * fix-header.c (symlink): Treat like readlink.
4076 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4078 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
4081 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
4083 * config/nextstep.h: Update HANDLE_PRAGMA macro.
4084 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
4085 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
4087 * config/nextstep.c (handle_pragma): Take three arguments, as per
4088 the new HANDLE_PRAGMA macro specification.
4089 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
4090 per the new HANDLE_PRAGMA macro specification.
4091 * config/i960/i960.c (process_pragma): Take three arguments, as
4092 per the new HANDLE_PRAGMA macro specification.
4094 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
4096 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
4097 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
4098 if unknown pragmas are encountered.
4099 (handle_sysv_pragma): Interpret return code from
4100 handle_pragma_token (). Return success/failure indication rather
4101 than next unprocessed character.
4102 (pragma_getc): New function: retrieves characters from the
4103 input stream. Defined when HANDLE_PRAGMA is enabled.
4104 (pragma_ungetc): New function: replaces characters back into the
4105 input stream. Defined when HANDLE_PRAGMA is enabled.
4107 * c-pragma.c (handle_pragma_token): Return success/failure status
4110 * c-pragma.h: Change prototype of handle_pragma_token().
4112 * varasm.c: (handle_pragma_weak): Only create this function if
4113 HANDLE_PRAGMA_WEAK is defined.
4115 * c-common,c (decl_attributes): If defined call the expression
4116 contained within the INSERT_ATTRIBUTES macro before adding
4117 attributes to a decl.
4119 * tm.texi (HANDLE_PRAGMA): Document the new verion of
4120 HANDLE_PRAGMA, which takes three arguments.
4121 (INSERT_ATTRIBUTES): Document this new macro.
4123 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
4124 new INSERT_ATTRIBUTES macro.
4126 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4128 * config/sparc/sparc.md (movdf): Only generate special RTL for
4129 LABEL_REFs when PIC.
4130 (move_label_di): Remove
4131 (movdi_pic_label_ref, movdi_high_pic_label_ref,
4132 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
4133 references when PIC.
4134 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
4135 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
4136 output an .xword for all 64-bit cases.
4138 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4140 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
4141 alignment, use FUNCTION_BOUNDARY instead.
4142 (sparc_output_deferred_case_vectors): Likewise.
4144 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4146 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
4147 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
4149 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
4151 * alpha/va_list.h: New file.
4152 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
4154 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
4156 * NEWS: Add SCO Openserver and Unixware 7 notes.
4160 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
4162 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
4163 (record_constant_1): Handle RANGE_EXPR.
4165 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
4167 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
4168 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
4169 and NOTE_INSN_RANGE_END specially.
4170 (reemit_notes): Likewise.
4172 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4174 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
4175 (ultrasparc_sched_init): Remove unneeded &.
4177 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4179 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
4180 for m68020-60, to prevent the use of fintrz.
4182 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
4184 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
4186 * Makefile.in: Likewise.
4187 * configure: Regenerated.
4189 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
4191 * configure.in (gxx_include_dir): Changed to
4192 '${prefix}/include/g++'-${libstdcxx_interface}.
4193 * configure: Rebuilt.
4195 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
4197 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
4199 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
4200 *sequences* *below* which scalar moves will be used.
4202 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
4204 * collect2.c (mktemp): Delete unused declaration.
4206 * config/xm-netbsd.h: Remove unnecessary file.
4207 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
4208 file anymore, it is not needed.
4210 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
4212 * convert.c (convert_to_integer): Issue an error on conversions to
4215 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
4217 * Makefile.in: Add lang_tree_files and gencheck.h.
4218 * configure.in: Generate them.
4219 * gencheck.c: Include gencheck.h.
4221 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4223 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
4224 movdi_lo_sum_pic and movdi_high_pic and make visible.
4225 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
4226 emit these when Pmode is not SImode.
4227 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
4229 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
4231 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
4232 .linkonce directive after the first time.
4234 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
4236 * m68k.md (beq0_di): Generate correct (and more efficient) code when
4237 the clobbered operand overlaps with an input.
4238 (bne0_di): Similarly.
4240 * Makefile.in (INSTALL): Remove "--no-header" argument.
4242 * NEWS: Various updates.
4244 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4246 * config/sparc/sparc.c (arith_operand, const64_operand,
4247 const64_high_operand, arith_double_4096_operand): Mark mode as
4249 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
4251 (sparc_emit_set_const64): Remove unused variable i.
4252 (sparc_splitdi_legitimate): Likewise for addr_part.
4253 (ultra_code_from_mask): Likewise for mask.
4254 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
4255 reverse return values so it matches usage and comments.
4256 (ultra_flush_pipeline): Likewise.
4257 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
4258 this_type, and allow loads and stores of differing FP modes as
4259 they do not create a conflict.
4260 (ultra_find_type): Initialize fpmode to SFmode, fix
4261 parenthesization thinkos in large conditional.
4262 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
4263 Init free_slot_mask after ultra_cur_hist is reset, not before.
4264 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
4265 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
4266 use ultra_flush_pipeline instead, then re-init group pointer.
4267 Fix statement with no effect. If no progress made in, and no
4268 instructions scheduled at all, advance to new pipeline cycle else
4269 we get into an endless loop.
4270 (ultrasparc_adjust_cost): Remove previous arg.
4271 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
4273 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
4275 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
4276 code. Use reg_overlap_mentioned_p to detect when source and
4277 destination overlap.
4278 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
4280 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
4282 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
4283 COMPARISON_VAL, into invariant_p.
4285 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4287 * regmove.c (regclass_compatible_p): New function.
4288 (regmove_optimize): Use it.
4290 Use NREGS parameter insted of calling max_reg_num.
4292 (fixup_match_1): Don't use code = MINUS when later tieing with
4293 a hard register is likely.
4295 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4297 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
4298 COMPARISON_VAL was normalized.
4300 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
4302 * loop.c (check_dbra_loop): The loop ending comparison value
4303 must be an invariant or we can not reverse the loop.
4305 * loop.c (scan_loop): Count down from max_reg_num - 1 to
4306 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
4308 (load_mems_and_recount_loop_regs_set): Likewise.
4310 * i386.c (print_operand): Remove obsolete 'c' docs.
4312 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
4314 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
4315 * frame.c (init_object_mutex): New function.
4316 (init_object_mutex_once): Likewise.
4317 (find_fde): Call it.
4318 (__register_frame_info): Likewise.
4319 (__register_frame_info_table): Likewise.
4320 (__deregister_frame_info): Likewise.
4322 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
4324 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
4326 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4328 * loop.c (check_dbra_loop): Enable code for reversal
4329 of some loops without a known constant loop end.
4331 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
4333 * haifa-sched.c (last_clock_var): New.
4334 (schedule_block): Initialize it.
4335 (schedule_insn): Use it to fill insn modes with issue information.
4337 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
4338 Tag trapb and next insn with TImode.
4339 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
4340 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
4341 Invoke alphaev5_align_insns as appropriate.
4342 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
4343 (MD_SCHED_VARIABLE_ISSUE): New.
4344 * alpha.md (attr type): Add multi.
4345 (define_asm_attributes): New.
4346 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
4347 (arg_home): Likewise.
4348 (fnop, unop, realign): New.
4350 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
4352 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
4353 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
4355 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
4356 (rs6000-ibm-aix4.[12]*): Likewise.
4357 * configure: Regnerate.
4359 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
4361 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
4362 already contains the return address.
4364 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
4366 * calls.c (expand_call): Use bitfield instructions to extract/deposit
4367 word sized hunks when loading unaligned args into registers.
4369 * haifa-sched.c (sched_analyze_insn): Only create scheduling
4370 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
4372 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
4374 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4376 * loop.c (check_dbra_loop): Add some code that would allow reversal
4377 of some loops without a known constant loop end if it were enabled.
4379 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
4381 * mips.md (lshrsi3_internal2+2): Fix type-o.
4383 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4385 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
4386 correctly with regards to stdio.h.
4388 * calls.c: Remove stdarg.h/varargs.h.
4391 * combine.c: Likewise.
4392 * cpperror.c: Likewise.
4393 * cpplib.c: Likewise.
4394 * cpplib.h: Likewise.
4395 * doprint.c: Likewise.
4396 * emit-rtl.c: Likewise.
4397 * final.c: Likewise.
4398 * fix-header.c: Likewise.
4400 * genattr.c: Likewise.
4401 * genattrtab.c: Likewise.
4402 * gencodes.c: Likewise.
4403 * genconfig.c: Likewise.
4404 * genemit.c: Likewise.
4405 * genextract.c: Likewise.
4406 * genflags.c: Likewise.
4407 * genopinit.c: Likewise.
4408 * genoutput.c: Likewise.
4409 * genpeep.c: Likewise.
4410 * genrecog.c: Likewise.
4411 * mips-tfile.c: Likewise.
4412 * prefix.c: Likewise.
4413 * protoize.c: Likewise.
4414 * regmove.c: Likewise.
4415 * toplev.c: Likewise.
4418 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4420 * config/sparc/sparc.c (sparc_override_options): If not
4421 TARGET_FPU, turn off TARGET_VIS.
4422 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
4423 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
4424 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
4425 (movdi_insn_sp64): Add VIS fzero alternative.
4426 (clear_sf, clear_df): New VIS patterns.
4427 (movsf, movdf expanders): Allow fp_zero_operand flat out when
4429 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
4431 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
4433 * loop.c (n_times_set, n_times_used, may_not_optimize,
4434 reg_single_usage): Convert to varrays. All uses changed.
4435 (insert_loop_mem): Return a value.
4436 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
4437 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
4440 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
4443 * configure.in: Do not set thread_file to "irix" since no such
4446 * sparc.md (float abs/neg splits): Check reload_completed before
4447 calling alter_subreg.
4449 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4451 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
4453 * config/sparc/sparc.h: Declare it.
4454 * config/sparc/sparc.md (float abs/neg splits): Use it.
4455 (all other splits): Handle SUBREGs properly where necessary.
4456 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
4458 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
4460 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
4461 an insn on the unfilled_slots_list that has no delay slots.
4462 (fill_eager_delay_slots): Similarly.
4464 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
4466 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
4467 as an ordinary operand.
4469 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
4471 * tree.c (valid_machine_attribute): Don't apply attributes to both
4474 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
4476 * reload.c (operands_match_p): Handle rtvecs.
4478 * i386.c (legitimate_pic_address_disp_p): New.
4479 (legitimate_address_p): Use it.
4480 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
4481 Handle constant pool symbols just like statics.
4482 (emit_pic_move): Use Pmode not SImode for clarity.
4483 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
4484 [UNSPEC]: New, handling what we killed above.
4485 [PLUS]: Detect and abort on invalid symbol arithmetic.
4486 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
4488 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
4490 * alias.c: Include output.h.
4491 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
4492 different if we're in a varargs function.
4493 * Makefile.in (alias.o): Depend on output.h
4495 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4497 * sh.h (GIV_SORT_CRITERION): Delete.
4499 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
4501 * regclass.c (regclass): Use xmalloc/free instead of alloca.
4502 * stupid.c (stupid_life_analysis): Ditto.
4503 * reload1.c (reload): Ditto.
4505 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4507 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
4508 arith_double_4096_operand, arith_double_add_operand): New
4510 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
4511 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
4512 them to transform add/sub 4096 into add/sub -4096.
4514 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4516 * loop.c (scan_loop): Allocate some slop to handle pseudos
4517 generated by move_movables.
4518 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
4521 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
4523 * tree.def (DECL_RESULT): Correct documentation.
4525 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4527 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
4528 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
4529 conflicts will all RELOAD_FOR_OUTPUT reloads.
4531 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
4532 loads the function result, substitute with a USE.
4534 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4536 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
4537 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
4538 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
4539 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
4540 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
4541 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
4543 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
4544 'o' to 'm' for GPR variant constraints.
4546 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
4548 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
4550 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
4552 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
4553 when the source and destination overlap.
4555 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
4556 clash with global type.
4558 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
4560 * fixinc.irix: Add curses.h handling from fixinc.wrap.
4562 * c-common.c (combine_strings): Also set TREE_READONLY.
4563 Change warn_write_strings to flag_const_strings.
4564 * c-decl.c, c-tree.h: Likewise.
4566 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4568 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
4569 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
4570 sequence, use SET/IOR instead so CSE can see it.
4571 * config/sparc/sparc.md (movhi_const64_special,
4572 movsi_const64_special): New patterns necessitated by that change.
4573 (movhi_high): Remove.
4574 (movhi_lo_sum): Change to match an IOR.
4575 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
4576 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
4577 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
4578 (movdf splits): Allow when not V9 or when not ARCH64 and integer
4579 registers are involved.
4580 (snesi_zero_extend split): Remove reload_completed test.
4581 (unnamed plus and minus zero_extend sidi splits): Add it.
4583 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
4585 * extend.texi: Remove description of extension to explicit
4586 instantiation that is now endorsed by standard C++.
4588 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4590 * config/arc/arc.c (arc_initialize_pic): Remove.
4591 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
4592 nothing on any platform and is invoked by no-one, it does not even
4593 appear in the documentation.
4594 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
4595 * config/sparc/sparc.c (initialize_pic): Likewise.
4596 (find_addr_reg): Remove this as well, no longer referenced after
4599 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
4601 * recog.c (validate_replace_rtx_group): New function.
4602 * recog.h (validate_replace_rtx_group): Declare it.
4603 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
4604 the entire group of substitutions.
4606 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
4608 * loop.c (load_mems): Fix initializers.
4610 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4612 * config/sparc/sparc.md (TFmode splits): Handle destination
4613 registers being referenced in the address correctly.
4615 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
4616 TREE_UNSIGNED, when bitsize of type's mode is larger than
4617 HOST_BITS_PER_WIDE_INT.
4619 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4621 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
4622 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
4623 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
4625 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
4628 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
4630 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
4631 * h8300.h (TINY_DATA_NAME_P): Likewise.
4632 (STRIP_NAME_ENCODING): Handle '&'.
4634 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
4635 register (it could be accessed via an outer SUBREG).
4636 (REG_OK_FOR_BASE_P): Likewwise.
4637 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
4639 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
4642 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
4644 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4646 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
4647 must be offsettable so the splits can be made.
4649 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
4651 * config/i386/winnt.c: Include system.h, not stdio.h to get
4652 sys/param.h pulled in before rtl.h in case the system defines MIN
4655 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
4657 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
4659 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
4661 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
4663 * cpplib.c (cpp_define): Handle macros with parameters.
4665 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4667 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
4668 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
4669 and DImode 64-bit. Use llong for minimal-toc SFmode and
4670 SYMBOL_REF / LABEL_REF 64-bit.
4671 (output_function_profiler): Use llong for profiler label and ld to
4672 load 64-bit label address.
4674 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
4676 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
4679 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
4681 * version.c: Bump for snapshot.
4683 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
4685 * version.c: Bump for snapshot.
4687 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
4689 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
4691 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
4693 * tm.texi (Misc): Fix typo "teh".
4695 * tm.texi (PIC): Fix typo "PPIC".
4697 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
4698 effect when -O2 and higher.
4699 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
4701 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
4703 * regclass.c: Changed register set documentation to be consistent
4706 * final.c (final_start_function) Removed redundant test for
4709 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
4711 * rtl.h (rtx_function): New type.
4712 (for_each_rtx): New function.
4713 * rtlanal.c (for_each_rtx): Define it.
4715 * recog.c (change_t): New type.
4716 (change_objects, change_old_codes, change_locs, change_olds):
4718 (changes): New variable.
4719 (validate_change): Dynamically allocate room for more changes, if
4720 necessary. Uses changes array instead of change_objects, etc.
4721 (apply_change_group): Use changes array instead of
4722 change_objects, etc.
4724 * loop.c (loop_mem_info): New type.
4725 (loop_mems): New variable.
4726 (loop_mems_idx): Likewise.
4727 (looop_mems_allocated): Likewise.
4728 (scan_loop): Remove nregs parameter.
4729 (next_insn_in_loop): New function.
4730 (load_mems_and_recount_loop_regs_set): Likewise.
4731 (load_mems): Likewise.
4732 (insert_loop_mem): Likewise.
4733 (replace_loop_mem): Likewise.
4734 (replace_label): Likewise.
4735 (INSN_IN_RANGE_P): New macro.
4736 (loop_optimize): Don't pass max_reg_num() to scan_loop.
4737 (scan_loop): Remove nregs parameter, compute it after any new
4738 registers are created by load_mems. Use INSN_IN_RANGE_P and
4739 next_insn_in_loop rather than expanding them inline. Call
4740 load_mems to load memory into pseudos, if appropriate.
4741 (prescan_loop): Figure out whether or not there are jumps from the
4742 loop to targets other than the label immediately following the
4743 loop. Call insert_loop_mem to notice all the MEMs used in the
4744 loop, if it could be safe to pull MEMs into REGs for the duration
4746 (strength_reduce): Use next_insn_in_loop. Tweak comments.
4748 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
4750 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
4752 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4754 * config/sparc/sparc.c (finalize_pic): Check for the correct
4755 nonlocal_goto_receiver UNSPEC number.
4756 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
4757 making note of this dependency existing in sparc.c
4758 (negtf2_notv9 split): Give NEG SFmode.
4759 (negsf2): Fix insn output string.
4761 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
4763 * c-common.c (decl_attributes): Issue an error if the argument
4764 to alias is not a string.
4766 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
4768 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
4769 pending memory flush list.
4771 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
4773 (try_combine): Allow combining insns with REG_LIBCALL notes.
4775 * expr.c (emit_block_move): Do not call memcpy as a libcall
4776 instead build up a CALL_EXPR and call it like any other
4778 (clear_storage): Similarly for memset.
4780 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
4783 * Makefile.in (cplus-dem.o): Provide explicit rules for building
4786 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
4787 and REG_LIVE_LENGTH as successful substitutions are made.
4789 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4791 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
4792 statement after end of loop label.
4794 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4796 * config/sparc/sparc.c (ultra_types_avail): New variable.
4797 (ultra_build_types_avail): New function to record mask of insn
4798 types in ready list at this cycle.
4799 (ultrasparc_sched_reorder): Call it.
4800 (ultra_find_type): Use it to quicken the search. Also simplif
4801 dependency check, don't use rtx_equal_p because we know exactly
4802 what we are looking for.
4804 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
4806 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
4807 for architecture v4.
4809 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4811 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
4813 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
4814 movdf_const_intreg and helper splits): New patterns to move float
4815 constants into integer registers.
4816 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
4819 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
4822 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
4824 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
4826 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
4827 a BASE_REGS register is needed as an intermediate when copying
4828 a symbolic value into any register class other than BASE_REGS.
4830 * expr.c (move_by_pieces): No longer static. Remove prototype.
4831 * rtl.h (move_by_pieces): Add extern prototype.
4832 * mips.c (expand_block_move): Handle aligned straight line copy by
4833 calling move_by_pieces.
4835 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
4838 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
4840 * stmt.c (expand_end_loop): Tidy. Allow unconditional
4841 jumps out of the loop to be treated as part of the exit test.
4843 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4844 Jeff Law <law@cygnus.com>
4846 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
4847 * cplus-dem.c: Delete.
4849 * Makefile.in (fold-const.o): depend on $(RTL_H).
4851 * fold-const.c: Include rtl.h to get the prototype for
4852 `set_identifier_local_value'.
4854 * loop.c (express_from_1): Remove unused variable `tmp'.
4855 (combine_givs): cast the first argument of bzero to char *.
4857 * toplev.c (display_help): Remove unused variable `looking_for_start'.
4859 * c-decl.c (init_decl_processing): Remove unneeded &.
4861 * alpha.h (alpha_initialize_trampoline): Provide prototype.
4863 * except.c (set_exception_lang_code, set_exception_version_code):
4864 Change parameter from `short' to `int' to avoid using a gcc
4867 * except.h (set_exception_lang_code, set_exception_version_code):
4868 Likewise for prototypes.
4870 * flow.c (count_reg_references): Remove unused variables `regno'
4873 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
4875 * prefix.c (translate_name): Cast the result of `alloca'.
4877 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
4879 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4881 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
4883 (valid_dbcc_comparison_p): Mark mode argument as unused.
4884 (symbolic_operand): Likewise.
4885 (legitimize_pic_address): Likewise.
4886 (const_uint32_operand): Likewise.
4887 (const_sint32_operand): Likewise.
4888 * sched.c [!INSN_SCHEDULING]: Define only dummy function
4889 schedule_insns and comment out rest of file.
4891 * m68k.c (output_move_simode_const): Use subl to move a zero into an
4893 (output_move_[hq]imode): Likewise.
4895 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
4897 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
4898 * invoke.texi: Corresponding changes.
4900 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
4902 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
4904 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4906 * config/sparc/sparc.c (ultra_code_from_mask,
4907 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
4908 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
4909 ultrasparc_sched_init, ultrasparc_variable_issue,
4910 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
4911 functions to describe UltraSPARC pipeline exactly to Haifa.
4912 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
4913 as there is nothing the scheduler can do about it. Indicate that
4914 REG_DEP_OUTPUT's collide. Fixup formatting.
4915 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
4916 divide costs on Ultra for DImode.
4917 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
4919 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
4920 ieuN and add call_no_delay_slot to type list.
4921 (cti function unit): New unit for branches on UltraSPARC.
4922 (subx/addx insns): Set type to misc.
4923 (sidi zero/sign extension insns on arch64): Set type to shift.
4924 (sign_extendhidi2_insn): Set type to sload.
4926 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
4928 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
4929 (output_epilog): Use if != 0 for offset.
4930 (rs6000_fatal_bad_address): Prepare for Intl.
4931 * rs6000.h (rs6000_fatal_bad_address): Declare.
4932 * rs6000.md (movsfcc, movdfcc): Use else if.
4933 (elf_high): Use {liu|lis}.
4934 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
4935 (movsi): Use rs6000_fatal_bad_address.
4937 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
4939 * reload.c (find_equiv_reg): Reject equivalences separated
4940 by a volatile instruction.
4942 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
4944 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
4946 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
4948 * alpha.md (movsicc): Fix mode mismatch.
4950 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
4952 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
4954 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
4956 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4958 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
4959 write-only modifier from operand 1 constraint.
4961 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4963 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
4964 emitting a XOR of -1 at the end, emit a NOT instead for combine's
4966 (sparc_emit_set_const64): Likewise, also when computing trailing
4967 bits do not negate low_bits and make fast_int an int.
4969 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
4971 * loop.c (add_label_notes): Do not ignore references to labels
4972 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
4973 * gcse.c (add_label_notes): Similarly.
4975 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
4977 * m68k.md (adddi_dilshr32): One of the operands must be a register.
4978 (adddi_dishl32): Similarly.
4980 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
4982 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
4983 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
4984 * cse.c (cse_basic_block): Add parens to shut up warnings.
4986 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4988 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
4989 sparc_emit_set_const64_longway, const64_is_2insns,
4990 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
4991 in 64-bit constant formation.
4992 * config/sparc/sparc.md (snesi_zero_extend split): Generate
4993 rtl for addx not subx.
4994 (define_insn movdi_const64_special): Make available even when
4995 HOST_BITS_PER_WIDE_INT is not 64.
4996 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
4997 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
4998 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
4999 instances of operand 1 inside a QI subreg.
5000 (xordi3_sp64_dbl): Remove '%' constraint for op1.
5001 (one_cmpldi2_sp64): Fix output string.
5002 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
5004 (unnamed arch64 ashift DI): Truncate shift count if greater than
5007 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
5009 * expr.c (store_expr): Don't optimize away load-store pair
5010 when either source or destination have a side effect.
5012 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
5014 * genrecog.c (add_to_sequence): Fatal error if the modes of the
5015 operands of SET are incompatible.
5017 * alpha.md: Fix max and min patterns so modes of SET operands match.
5019 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
5021 * configure.in: Avoid [[ by using test and changequote.
5022 * configure: Rebuild.
5024 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5026 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
5028 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
5029 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
5030 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
5031 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
5032 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
5033 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
5034 Fix mismatching modes in SET operands.
5035 (conditional move patterns): Fix formatting.
5036 (unnamed subx arch64 pattern): Remove duplicate insn.
5038 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5040 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5041 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
5042 (input_operand): Fixup test for what we accept for constant
5044 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
5046 (safe_constDI): Remove.
5047 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
5048 gen_safe_XOR64): New functions.
5049 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
5050 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
5052 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
5053 available when HOST_BITS_PER_WIDE_INT is not 64.
5054 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
5055 move before movdi_insn_sp64 pattern.
5056 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
5057 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
5058 symbolic_operand as predicate for second operand.
5059 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
5060 expander): Give set VOIDmode.
5062 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
5064 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
5066 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
5068 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
5070 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
5072 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
5074 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
5076 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
5078 * install.texi: Various SCO OpenServer tweaks.
5080 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
5082 * reload1.c (eliminate_regs_in_insn): Handle another case when
5083 eliminating the frame pointer to the hard frame pointer. Add
5084 missing ep->to_rtx check to one existing case.
5086 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
5088 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
5090 * tree.h: De-conditionalize init_priority code.
5092 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
5093 * collect2.c (NM_FLAGS): Change from -p to -n.
5095 * configure.in: Turn on collect2 for mipstx39-elf.
5096 Handle use_collect2=no properly.
5098 * c-common.c: De-conditionalize init_priority code.
5099 * collect2.c (extract_init_priority, sort_ids): New fns.
5100 (main): Call sort_ids.
5101 Move sequence_number to file scope.
5103 * configure.in: Handle --enable-init-priority.
5104 * c-common.c (attrs): Add A_INIT_PRIORITY.
5105 (init_attributes, decl_attributes): Likewise.
5106 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
5107 * tree.c (get_file_function_name_long): Split out...
5108 (get_file_function_name): ...from here.
5110 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
5112 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
5115 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
5117 * toplev.c (display_help): Add braces to shut up warnings.
5118 * tree.c (simple_cst_equal): Likewise.
5120 * fold-const.c (non_lvalue): Don't deal with null pointer
5122 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5124 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
5125 of any size to a pointer.
5127 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
5129 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
5131 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
5133 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
5134 which will be saved.
5135 * mn10300.md (prologue insn): Only save registers which need saving.
5136 (epilogue insn): Similarly.
5138 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
5141 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
5143 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
5144 VAR_DECL's in gp addressable sections.
5146 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
5148 * sparc.c: Change return <exp> to <exp>; return; in functions
5150 * sparc.md: Add empty semicolon statement after final label in
5153 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5155 * config/sparc/sparc.md (define_insn addx_extend): Rename to
5156 addx_extend_sp64, only allow when TARGET_ARCH64.
5157 (define_insn addx_extend_sp32 and split): Version that works when
5159 (define_insn subx_extend): Likewise.
5160 (define_split adddi3 and subdi3 with zero extension): Fixup and
5161 correct bugs when not TARGET_ARCH64.
5163 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
5165 * except.c (set_exception_lang_code, set_exception_version_code):
5166 Use prototype-style definition if __STDC__, to match declaration
5169 * genemit.c: Change FAIL and DONE macros not to use loops.
5171 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
5173 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
5174 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
5176 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
5178 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
5180 * README.g77: Update from Craig.
5182 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5184 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
5186 (safe_constDI sparc_emit_set_const64_quick1,
5187 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5188 analyze_64bit_constant, const64_is_2insns,
5189 create_simple_focus_bits): Fix some bugs when compiled on real
5191 (function_arg_record_value_3, function_arg_record_value_2,
5192 function_arg_record_value): Add fully prototyped forward decls.
5193 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
5194 to cmpsi_insn and use on both 64 and 32 bit targets.
5195 (define_insn cmpsi_insn_sp64): Remove.
5196 (define_expand zero_extendsidi2): Allow for 32-bit target too.
5197 (define_insn zero_extendsidi2_insn): Rename to
5198 zero_extendsidi2_insn_sp64.
5199 (define_insn zero_extendsidi2_insn_sp32): New pattern and
5200 assosciated forced split for it.
5202 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5204 * config/sparc/sparc.h: Declare them.
5205 (PREDICATE_CODES): Add them.
5206 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
5207 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
5209 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
5211 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
5212 in v9 case as the latter makes the Solaris assembler crash.
5214 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5216 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
5217 for TFmode when !v9. We require offsettable memory addresses.
5218 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
5219 DFmode register number conversions.
5220 * config/sparc/sparc.md (define_split DFmode moves): If register
5221 is a SUBREG do alter_subreg on it before using.
5222 (define_expand movtf): Fixup comment about alignment on v9.
5223 (define_split TFmode moves): Don't use gen_{high,low}part, create
5224 explicit SUBREGs instead.
5226 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
5228 * Makefile.in (mbchar.o): Depend on mbchar.c.
5230 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5231 Richard Henderson <rth@cygnus.com>
5233 Rewrite Sparc backend for better code generation and
5234 improved sparc64 support.
5235 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
5237 * config/sparc/sysv4.h: Likewise.
5238 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
5239 move_operand, v8plus_regcmp_op, emit_move_sequence,
5240 singlemove_string, doublemove_string, mem_aligned_8,
5241 output_move_double, output_move_quad, output_fp_move_double,
5242 move_quad_direction, output_fp_move_quad, output_scc_insn):
5244 (small_int_or_double): New predicate.
5245 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
5246 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
5247 old pic_{sethi,lo_sum}_si patterns.
5248 (mem_min_alignment): New generic function to replace
5249 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
5250 available and can test for arbitrary alignments. All callers
5252 (save_regs, restore_regs, build_big_number,
5253 output_function_prologue, output_cbranch, output_return,
5254 sparc_flat_save_restore, sparc_flat_output_function_prologue,
5255 sparc_flat_output_function_epilogue): Prettify
5257 (output_function_epilogue): Likewise and add code to output
5258 deferred case vectors.
5259 (output_v9branch): Likewise, add new arg INSN and use it to tack
5260 on branch prediction settings. All callers changed.
5261 (print_operand): Likewise and output %l44 for LO_SUMs when
5263 (sparc_splitdi_legitimate): New function to make sure DImode
5264 splits can be run properly when !arch64.
5265 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
5266 Reformat example code in comments.
5267 (set_extends): Remove UNSPEC/v8plus_clear_high case.
5268 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
5269 of deferred case vectors we need to output.
5270 (sparc_defer_case_vector): Record a case vector.
5271 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
5272 sparc_output_deferred_case_vectors): New functions to output them.
5273 (sparc_emit_set_const32): New function to form 32-bit constants in
5274 registers when that requires more than one instruction.
5275 (safe_constDI, sparc_emit_set_const64_quick1,
5276 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5277 analyze_64bit_constant, const64_is_2insns,
5278 create_simple_focus_bits, sparc_emit_set_const64): New functions
5279 which do the same for 64-bit constants when arch64.
5280 (sparc_emit_set_symbolic_const64): New function to emit address
5281 loading for all code models on v9.
5282 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
5283 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
5284 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
5285 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
5286 inaccuracies in comments, add symbolic and text_segment operands
5287 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
5288 GENERAL_REGS in these cases as a temp REG is needed to load these
5289 addresses into a register properly.
5290 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
5292 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
5293 quads are guarenteed to have 16-byte alignment.
5294 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
5295 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
5296 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
5297 deferred case vector implementation.
5298 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
5299 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
5300 Generate "internal label - label" instead of "label - 1b".
5301 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
5302 (PREDICATE_CODES): Remove sparc_operand, move_operand,
5303 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
5305 (doublemove_string, output_block_move, output_fp_move_double,
5306 output_fp_move_quad, output_move_double, output_move_quad,
5307 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
5308 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
5309 (sparc_emit_set_const32, sparc_emit_set_const64,
5310 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
5311 mem_min_alignment, small_int_or_double): Add externs.
5312 * config/sparc/sparc.md: Document the many uses of UNSPEC and
5313 UNSPEC_VOLATILE in this backend.
5314 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
5315 unary to types which execute in it.
5316 (define_function_unit ieu_shift): Rename to ieu0.
5317 (define_function_unit ieu1): New, executes compare, call, and
5318 uncond_branch type insns.
5319 (define_function_units for type fdivs, fdivd, fsqrt): These
5320 execute in the fpu multiply unit not the adder on UltraSparc.
5321 (define_expand cmpdi): Disallow TARGET_V8PLUS.
5322 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
5323 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
5324 allows the arith_double_operand predicate and rHI constraint when
5326 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
5327 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
5328 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
5329 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
5330 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
5331 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
5332 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
5333 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
5334 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
5335 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
5336 sign_extendqihi2_insn, sign_extendqisi2_insn,
5337 sign_extendqidi2_insn, sign_extendhidi2_insn,
5338 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
5339 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
5340 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
5341 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
5342 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
5343 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
5344 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
5345 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
5346 smulsi3_highpart_v8plus, unnamed subreg mult,
5347 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
5348 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
5349 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
5350 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
5351 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
5352 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
5353 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
5354 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
5355 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
5356 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
5357 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
5358 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
5359 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
5360 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
5361 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
5362 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
5363 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
5364 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
5365 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
5366 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
5367 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
5368 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
5369 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
5370 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
5371 call_address_untyped_struct_value_sp32,
5372 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
5373 call_value_symbolic_sp32, call_value_address_sp64,
5374 call_value_symbolic_sp64, branch_sp32, branch_sp64,
5375 flush_register_windows, goto_handler_and_restore,
5376 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
5377 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
5378 return_addsi, return_di, return_adddi, return_sf, all call+jump
5379 peepholes, trap, unnamed trap insns): Prettify output strings.
5380 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
5381 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
5382 Likewise and force + implement splits for integer cases.
5383 (define_insn return_sf_no_fpu): Likewise and allow to match when
5384 no-fpu because of our subreg SFmode splits.
5385 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
5386 zero_extendqidi2_insn, zero_extendhidi2_insn,
5387 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
5388 input_operand for second operand.
5389 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
5390 reg_or_0_operand for operand 2 so new splits can use it.
5391 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
5392 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
5394 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
5395 CONST_DOUBLEs for operand 2.
5396 (define_insn move_label_di): Likewise and label distance
5397 optimization because it no longer works with new deferred case
5398 vector scheme. To be revisited.
5399 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
5400 and allow reg_or_0_operand and J constraint for second operand.
5401 (define_insn jump): Set branch predict taken on V9.
5402 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
5403 new deferred case vector scheme.
5404 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
5405 (define_insn negdi2_sp32): Force + implement splits.
5406 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
5407 one_cmplsi2_not_liveg0 respectively, and create expander of original
5408 names which emit special rtl for TARGET_LIVE_G0.
5409 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
5410 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
5411 gen_compare_reg, FAIL instead.
5412 (define_insn sgtu, sleu): Likewise and check gen_s*() return
5413 values when trying to reverse condition codes, if they FAIL then
5415 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
5416 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
5417 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
5418 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
5419 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
5420 set output string to # to indicate they are mandatory splits.
5421 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
5422 pic_sethi_di, move_pic_label_si): Remove.
5423 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
5424 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
5426 (define_expand movsi_pic_label_ref, define_insn
5427 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
5428 expander and insns to handle PIC label references and deferred
5430 (define_insn get_pc_via_rdpc): Comment out as it is no longer
5432 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
5433 Rewrite to not use emit_move_sequence, make use of new constant
5434 formation code, and new splits for all multi-insn cases.
5435 (define_insn movqi_insn): Remove sethi case, it can never happen.
5436 Use reg_or_zero_operand instead of const0_rtx explicit test,
5437 use input_operand instead of move_operand for source, and use
5438 general_operand now for dest.
5439 (define_insn movhi_insn): Similar but leave sethi case.
5440 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
5441 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
5442 movhi_lo_sum respectively, prettify output string.
5443 (define_insn movsi_zero_liveg0): New pattern to put zero into a
5444 register when needed on TARGET_LIVE_G0.
5445 (define_insn movsi_insn): Use general_operand and input_operand
5446 for dest and src respectively. Simplify applicability test.
5447 Prettify output strings, and add clr alternative for J
5449 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
5450 deprecated std and reg-reg DI moves): Remove and...
5451 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
5452 implementation which uses forced splits for all non-single insn
5454 (define_split DI move cases on !arch64): New splits to handle all
5455 situations of 64-bit double register DImode on 32bit, and
5456 unaligned registers and memory addresses for all subtargets.
5457 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
5459 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
5460 input_operand for dest and src respectively, prettify output
5462 (define_insn movdf_insn, movdf_no_e_insn, store_df,
5463 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
5465 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
5466 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
5467 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
5468 movtf_no_e_insn_sp64) Replace with new
5469 implementation which uses forced splits for all non-single insn
5471 (define_split DF move cases): New splits in similar vein to DI
5473 (define_insn sethi_di_medlow, sethi_di_medium_pic,
5474 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
5475 movdi_sp64_insn): Remove old v9 code model and constant loading
5477 (define_insn pic_lo_sum_di, pic_sethi_di,
5478 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
5479 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
5480 embmedany_sethi, embmedany_losum, embmedany_brsum,
5481 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
5482 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
5483 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
5484 scheme, using unspecs, secondary reloads, and one to one sparc
5485 insn to rtl insn mapping for better scheduling and code gen.
5486 (define_expand reload_indi, reload_outdi): Reload helpers for
5487 MEDANY and EMBMEDANY symbol address loading cases which require a
5489 (define_expand movsicc): Remove v8plus_regcmp cases.
5490 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
5491 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
5492 cmp_diqi_trunc_set): New patterns used by some of the new scc
5494 (define_insn xordi3_sp64_dbl): New pattern used for constant
5495 formation when crossing from 32-bit targets.
5496 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
5498 (define_insn addx, subx): Make visible and prettify.
5499 (define_insn adddi3_insn_sp32): Likewise and force split.
5500 (define_insn addx_extend, subx_extend, unnamed): New patterns for
5501 64bit scc split usage.
5502 (define_insn unnamed plusDI zero_extend, unnamed minusDI
5503 zero_extend, subdi3): Force and implement splits.
5505 * final.c (final_scan_insn): Don't output labels if target
5506 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
5509 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
5510 don't forget to walk inside SEQUENCESs too as these are what the
5511 delay slot scheduler will create.
5513 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
5515 * alpha.md (extxl+1,+2): New patterns to work around
5518 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
5520 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
5521 caused bad assembly code to be generated.
5523 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
5525 * netbsd.h: Fix typo.
5527 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
5529 * config.sub: Fix typo.
5531 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
5533 * invoke.texi (Environment Variables): Typo: Change "ascpects"
5535 (Running Protoize): Typo: Change "ther" into "other".
5537 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
5539 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
5540 * m68k/netbsd.h: Likewise.
5541 * ns32k/netbsd.h: Likewise.
5542 * sparc/netbsd.h: Likewise.
5544 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
5546 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
5547 * ginclude/va-clipper.h (va_list): Likewise.
5549 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
5551 * rs6000.c (rs6000_override_options): If big endian and -Os, use
5552 load/store multiple instructions unless user overrides.
5554 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
5556 * ns32k/netbsd.h: Fix typo.
5558 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
5560 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
5561 labels with .debugsym if no parallel insns.
5563 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
5565 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
5566 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
5568 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
5570 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
5571 (AR_FOR_TARGET): Define.
5573 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
5575 * dyn-string.h: New file.
5576 * dyn-string.c: Likewise.
5577 * Makefile.in (OBJS): Add dyn-string.o.
5578 (dwarf2out.o): Add dyn-string.h dependency.
5579 (dyn-string.o): List dependencies.
5580 * dwarf2out.c: Include dyn-string.h.
5581 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
5582 (addr_const_to_string): Take a dyn_string_t, not a char* as a
5583 prototype. Use dyn_string_append rather than strcat, throughout.
5584 (addr_to_string): Use dyn_string_t.
5586 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
5588 Function entry/exit profiling instrumentation:
5589 * expr.h (profile_function_entry_libfunc,
5590 profile_function_exit_libfunc): Declare new variables.
5591 * optabs.c: Define them here.
5592 (init_optabs): Initialize them.
5593 * tree.h (struct tree_decl): New flag
5594 no_instrument_function_entry_exit.
5595 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
5596 * c-decl.c (duplicate_decls): Merge it.
5597 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
5598 (init_attributes): Use it for "no_instrument_function".
5599 (decl_attributes): Handle it, for functions that have not yet been
5600 compiled. Set decl flag.
5601 * flags.h (flag_instrument_function_entry_exit): Declare new
5603 * toplev.c (flag_instrument_function_entry_exit): Define it here.
5604 (f_options): New option "instrument-functions".
5605 * function.h (struct function): New field instrument_entry_exit.
5606 * function.c (current_function_instrument_entry_exit): New
5608 (push_function_context_to, pop_function_context_from): Save and
5610 (expand_function_start): Set current_ variable, maybe emit return
5611 label and entry profile call.
5612 (expand_function_end): Maybe emit exit profile call.
5614 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
5616 * i386.md (movqi): When optimizing a load of (const_int 1) into a
5617 NON_QI_REG_P, pretend the register is SImode.
5619 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
5621 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
5622 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
5623 manufacturer id for ns32k.
5624 * configure: Regenerated.
5625 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
5626 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
5627 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
5628 * config/m68k/netbsd.h: Same.
5629 * config/ns32k/netbsd.h: Same.
5630 * config/sparc/netbsd.h: Same.
5632 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
5634 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
5635 or UNROLL_COMPLETELY loop that starts with a jump to its
5638 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
5640 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
5641 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
5642 (print_operand, case 'B'): Don't fall through.
5643 (print_operand, case 'S'): Correct mask begin/end computation.
5644 Use HOST_BITS_PER_WIDE_INT.
5645 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
5646 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
5647 * rs6000/aix41.h (CPP_PREDEFINES): Same.
5648 * rs6000/aix43.h (CPP_PREDEFINES): Same.
5650 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
5652 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
5653 constraint from second alternative.
5655 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5657 * configure.in: Fix --without/--disable cases for local-prefix,
5658 gxx-include-dir and checking.
5660 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5662 * configure.in (enable_haifa): Set by default for sparc64 too.
5665 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5667 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
5668 * i386/winnt.c (associated_type): New fn.
5669 (i386_pe_valid_type_attribute_p): New fn.
5670 (i386_pe_check_vtable_importexport): Remove.
5671 (i386_pe_dllexport_p): Use associated_type.
5672 (i386_pe_dllimport_p): Likewise.
5674 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
5675 * i386.c (i386_valid_type_attribute_p): Also accept
5676 attributes for METHOD_TYPEs.
5678 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
5680 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
5682 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
5684 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
5686 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
5687 them from generating a new base name for each occurence of
5690 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
5692 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
5694 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
5698 * cplus-dem.c (type_kind_t): New type.
5699 (demangle_template_value_parm): Add type_kind_t parameter. Rely
5700 on this paramter, rather than demangling the type again.
5701 (demangle_integral_value): Pass tk_integral.
5702 (demangle_template_: Pass the value returned from do_type.
5703 (do_type): Return a type_kind_t. Pass tk_integral to
5704 demangle_template_value_parm for array bounds.
5705 (demangle_fund_type): Likewise.
5707 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
5709 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
5712 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
5714 * pa.c (move_operand): Accept CONSTANT_P_RTX.
5716 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
5718 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
5720 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
5723 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
5725 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
5726 (DEBUGGER_ARG_OFFSET): Likewise.
5728 * mn10300.md (movsf): Remove last change. Not needed.
5730 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
5732 * c-lex.c (yylex): Fix boundary conditions in character literal and
5733 string literal loops.
5735 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
5737 * longlong.h (count_leading_zeros): Sparclite scan instruction was
5738 being invoked incorrectly.
5740 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
5741 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
5743 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
5744 * configure.in: Added i[34567]86-*-win32
5745 * config.sub: Ditto.
5746 * configure: Rebuilt.
5748 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
5750 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
5751 the frame pointer and compiling PIC code and reload has not completed.
5753 * i386.c (output_to_reg): Add code to emulate non-popping DImode
5756 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
5758 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
5760 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
5762 * Makefile.in (install-info): Only try to update the info
5763 directory file if it exists in the first place.
5765 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
5767 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
5769 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
5771 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
5772 CONST_DOUBLE source.
5774 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
5776 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
5777 strings as the insertion of USER_LABEL_PREFIX.
5778 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
5780 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
5783 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
5785 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
5786 already defined type.
5788 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
5790 * expr.c (check_max_integer_computation_mode): Allow conversions
5791 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
5792 (expand_expr): Likewise.
5794 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5796 * expr.c (expand_expr): Expand RETURN_EXPR.
5798 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
5800 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
5802 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
5804 * dwarf2out.c (output_aranges): Call stripattributes
5805 for TEXT_SECTION references.
5806 (output_line_info): Likewise.
5808 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5810 * profile.c (branch_prob): Call allocate_reg_info after outputting
5811 profile rtl in instrument_arcs.
5813 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
5815 * fixinc.irix (math.h): Install wrapper instead of copying.
5817 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5819 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
5820 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
5821 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
5822 lang_flag_0. Added documentation in the flag table.
5824 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
5826 * cccp.c (do_include): Fix vax c style include handling.
5828 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5830 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
5832 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
5834 * fold-const.c (non_lvalue): Don't deal with null pointer
5836 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5838 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
5840 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
5841 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
5842 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
5843 (u_short_cint_operand): Same.
5844 (reg_or_cint_operand): Same.
5845 (logical_operand): Same.
5846 (input_operand): Same.
5847 (reg_or_short_operand): Use u_short_cint_operand.
5849 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
5851 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
5852 but keep the insns and splits. Adjust so when the ultimate destination
5853 is memory, use cvtql.
5855 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
5857 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
5859 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
5861 * gcc.c (do_spec): Call "error" not "warning".
5863 * configure.in: Fix minor problems with gas feature detection code.
5864 * configure: Rebuilt.
5866 * gcc.c (do_spec): Issue a warning for '%[]' usage.
5869 * gcc.c: Delete %[spec] support.
5870 (do_spec_1, case '('): Likewise.
5871 (do_spec_1, case '['): Call error.
5873 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
5875 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
5876 (CPP_SUBTARGET_SPEC): Default to empty string.
5877 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
5878 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
5879 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
5880 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
5882 * alpha/linux.h (CPP_PREDEFINES): Tidy.
5883 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
5884 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
5885 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
5886 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
5887 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
5888 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
5889 * alpha/vxworks.h: Likewise.
5891 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
5893 * mips.md (reload_outsi): Added missing REGNO call.
5894 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
5896 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
5897 another match_operator and compare the codes.
5899 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
5901 * MIPS multiply pattern fixes:
5902 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
5903 Add union classes for HI, LO, or HILO plus general registers.
5904 (GENERATE_MADD): Deleted.
5905 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
5906 Add TARGET_MAD to condition.
5907 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
5908 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
5909 "*d" for accumulator, to give preference to LO initially but not
5912 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
5914 * configure.in (enable_c_mbchar): New configure option.
5915 (extra_cpp_objs): Always available now.
5917 * cexp.y (mbchar.h): #include it.
5918 (yylex): Handle Multibyte characters in character literals.
5920 * cccp.c (mbchar.h): #include it.
5921 (main): Set character set based on LANG environment variable.
5922 (rescan): Handle multibyte characters in comments.
5923 (skip_if_group): See above.
5924 (validate_else): See above.
5925 (skip_to_end_of_comment): See above.
5926 (macarg1): See above.
5927 (discard_comments): See above.
5928 (rescan): Handle multibyte characters in string and character literals.
5929 (collect_expansion): See above.
5930 (skip_quoted_string): See above.
5931 (macroexpand): See above.
5932 (macarg1): See above.
5933 (discard_comments): See above.
5934 (change_newlines): See above.
5936 * c-lex.c (mbchar.h): #include it.
5937 (GET_ENVIRONMENT): New macro.
5938 (init_lex): Set character set based on LANG environment variable.
5939 (yylex): Handle multibyte characters in character literals.
5940 (yylex): Handle multibyte characters in string literals.
5942 * Makefile.in (mbchar.o): New target.
5943 (cccp$(exeext)): @extra_cpp_objs@ is always available.
5944 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
5946 * mbchar.[ch]: New files for multibyte character handling.
5948 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5950 * jump.c (jump_optimize): When simplifying noop moves and
5951 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
5952 the PUSHes to rewrite in second loop as we did in the first.
5954 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5956 * cplus-dem.c (demangle_nested_args): Make function definition
5957 static to match the prototype.
5959 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
5961 * alloca.c: Respect USE_C_ALLOCA.
5962 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
5963 * gengenrtl.c (xmalloc): Likewise.
5965 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
5967 * loop.h (struct induction): Add no_const_addval.
5968 * loop.c (the_movables, reg_address_cost): New variables.
5969 (init_loop): Init reg_address_cost.
5970 (loop_optimize): Call end_alias_analysis.
5971 (scan_loop): Init the_movables.
5972 (record_giv): Init induction->no_const_addval.
5973 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
5974 [REG]: Rearrange loop search test to catch more cases.
5975 (general_induction_var): Return success not benefit; take an extra
5976 argument for that. Change all callers.
5977 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
5978 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
5979 [default]: Search the_movables for additional combinations.
5980 (sge_plus_constant, sge_plus): New functions.
5981 (express_from_1): New function.
5982 (express_from): Always define. Rewrite using express_from_1.
5983 (combine_givs_p): Handle more cases. Ignore address cost.
5984 (cmp_combine_givs_stats): New function.
5985 (combine_givs_used_once, combine_givs_benefit_from): New functions.
5986 (combine_givs): Rewrite to do best-fit combination.
5988 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
5989 (fold): Do a complete (A*C)+(B*C) association check.
5991 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
5993 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
5995 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
5997 * mn10300.c (MODES_TIEABLE_P): Fix typo.
5999 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
6001 * tree.c (valid_machine_attribute): Only create a new type variant if
6002 there is a decl to use it.
6004 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
6006 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
6009 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
6011 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
6014 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
6016 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
6017 Simplify tests for clearing an address register.
6018 (expand_prologue): Corresponding changes.
6020 * mn10300.md (movXX patterns): Make sure the destination is an
6021 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
6022 (logical patterns): Split into expanders + patterns
6023 (zero and sign extension patterns): Similarly.
6024 (shift patterns): Similarly.
6026 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
6028 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
6029 for the sequence, recording base values.
6031 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
6033 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
6035 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
6037 * gcc.c: Remove ANSI-C ism from --help code.
6039 * toplev.c: Support --help with USE_CPPLIB.
6041 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
6043 * configure.in: Rework gas feature code to work with symlink based
6046 * extend.texi: Clarify some issues related to local variables
6047 assigned to explicit registers.
6049 * mn10300.md (mulsi): Turn into expander + pattern.
6051 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
6054 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
6056 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
6058 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
6060 * version.c: Bump again to distinguish mainline tree from the
6063 See ChangeLog.0 for earlier changes.
6066 add-log-time-format: current-time-string