1 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3 * extend.texi: Clarify proper uses for register clobbers in asms.
5 Wed Nov 4 22:16:36 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
7 * recog.h (enum op_type): Define.
8 (constrain_operands): Adjust prototype.
9 (recog_op_type): Declare new variable.
10 * recog.c (recog_op_type): New variable.
11 (insn_invalid_p): Allow modifying an asm statement after reload.
12 (extract_insn): Set up recog_op_type.
13 (constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
14 Don't compute operand types, use recog_op_type.
15 Use the information computed by extract_insn instead of the previous
16 method of finding it by insn code number.
17 * caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
18 * reorg.c (fill_slots_from_thread): Likewise.
19 * reload1.c (reload_as_needed): Likewise.
20 (gen_reload): Likewise.
21 (inc_for_reload): Likewise.
22 (reload_cse_simplify_operands): Likewise.
23 Use the information computed by extract_insn instead of the previous
24 method of finding it by insn code number.
25 * genattrtab.c (write_attr_case): Generate call to extract_insn, not
27 * final.c (final_scan_insn): Use extract_insn, not insn_extract.
28 (cleanup_operand_subregs): Use extract_insn, not insn_extract.
29 Use the information computed by extract_insn instead of the previous
30 method of finding it by insn code number.
31 * regmove.c (find_matches): Likewise. Change meaning of the return
32 value to be nonzero if the optimization can be performed, zero if
33 not. All callers changed.
34 Shorten some variable names to fix formatting problems.
35 (regmove_optimize): Shorten some variable names to fix formatting
37 Use the information computed by extract_insn instead of the previous
38 method of finding it by insn code number.
39 * regclass.c (scan_one_insn): Likewise.
40 (record_reg_classes): Don't compute operand types, use recog_op_type.
41 * reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
42 recog_constraints instead.
44 Wed Nov 4 21:37:46 1998 Jeffrey A Law (law@cygnus.com)
46 * rtl.h (flow2_completed): Declare.
47 * flow.c (flow2_completed): Definition.
48 * toplev.c (rest_of_compilation): Set and clear flow2_completed
51 Wed Nov 4 19:15:37 1998 "Melissa O'Neill" <oneill@cs.sfu.ca>
53 * Makefile.in (libcpp.a): Ranlib libcpp.a
55 * cppulp.c (user_label_prefix): Initialize.
57 Wed Nov 4 19:07:08 1998 John Wehle (john@feith.com)
59 * flow.c (mark_regs_live_at_end): Mark the stack pointer as live
60 at a RETURN if current_function_sp_is_unchanging is set.
62 Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
64 * emit-rtl.c (try_split): Fixed error in Oct 10 patch.
66 Wed Nov 4 15:11:15 1998 Geoffrey Noer <noer@cygnus.com>
68 * i386/cygwin32.h (MASK_WIN32, MASK_CYGWIN, MASK_WINDOWS, MASK_DLL,
69 TARGET_WIN32, TARGET_CYGWIN, TARGET_WINDOWS, TARGET_DLL): New.
70 (SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
71 (CPP_PREDEFINES): Don't define __CYGWIN32__ here.
72 (STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
73 (CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
75 (LIB_SPEC): Handle -mno-cyginw option.
76 (LINK_SPEC): Handle -mdll.
78 Wed Nov 4 22:56:14 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
80 * reload.c (find_reloads): Fix test for usage by other reload
81 to handle secondary reloads properly.
83 Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
85 * reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
86 intermediate structure which has exactly the members provided by
87 ELIMINABLE_REGS. Define NUM_ELIMINABLE_REGS in terms of the
88 static intermediate structure.
90 (init_elim_table): Xmalloc() `reg_eliminate', and initialize it
91 from the intermediate structure. Do the same analogous fix in
92 the case where ELIMINABLE_REGS is not defined.
94 Tue Nov 3 20:50:03 1998 Jeffrey A Law (law@cygnus.com)
96 * pa.h (SELECT_SECTION): Fix thinko.
98 Tue Nov 3 17:51:36 1998 Jim Wilson <wilson@cygnus.com>
100 * dwarf2out.c (output_call_frame_info): Comments on last change.
102 Tue Nov 3 07:51:43 1998 Richard Earnshaw (rearnsha@arm.com)
104 * arm.c (add_constant): When taking the address of an item in the
105 pool, get the mode of the item addressed.
107 * arm.c (final_prescan_insn case INSN): If an insn doesn't
108 contain a SET or a PARALLEL, don't consider it for conditional
111 Restore ABI compatibility for NetBSD.
112 * arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
114 (RETURN_IN_MEMORY): Likewise.
116 Mon Nov 2 11:46:17 1998 Doug Evans <devans@canuck.cygnus.com>
118 * m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
119 (m32r_output_block_move): Rewrite bytes < 4 handling.
121 Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
123 * configure.in: Call AC_FUNC_VFORK.
125 * collect2.c: Define VFORK_STRING as a printable string for
126 error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
127 defined, include vfork.h. If VMS is defined, define vfork()
128 appropriately. Remove vfork check on USG, we're using autoconf.
129 (collect_execute): Pass VFORK_STRING to fatal_perror instead of
130 checking locally what string to pass.
131 (scan_prog_file): Likewise.
132 (scan_libraries): Likewise.
134 * gcc.c: Remove vfork check on USG, we're using autoconf.
135 Besides, no calls to vfork/fork occur in this file.
137 * protoize.c: Likewise.
139 Mon Nov 2 07:52:28 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
141 * configure.in (DEFAULT_LINKER): renamed from LD
142 (DEFAULT_ASSEMBLER): renamed from AS; reverted Schwab's patch
143 (gcc_cv_as): try $DEFAULT_ASSEMBLER before $AS
146 Mon Nov 2 01:48:10 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
148 * BUGS: fix the regexp for `more' to find the appropriate node.
149 Reported by Joerg Pietschmann <joerg_pietschmann@zkb.ch>
151 * BUGS: added link to the WWW FAQ
153 Sun Nov 1 18:27:15 PST 1998 Jeff Law (law@cygnus.com)
155 * version.c: Bump for snapshot.
157 Sun Nov 1 11:04:32 1998 Jeffrey A Law (law@cygnus.com)
159 * From Christian Gafton:
160 * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
161 * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
162 * sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
164 Sat Oct 31 21:42:39 1998 Mark Mitchell <mark@markmitchell.com>
166 * c-common.c (c_get_alias_set): Allow all type-punning through
167 unions. Don't get confused about the type of a bit-field, despite
168 the antics of build_modify_expr.
170 Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <jpr@jpr.com>
172 * fixinc.sco: Paramaterize #include_next values.
173 * fixinc/fixinc.sco: Likewise.
175 Sat Oct 31 20:39:35 1998 Jeffrey A Law (law@cygnus.com)
177 * toplev.c (rest_of_compilation): No longer set reload_completed.
178 * reload1.c (reload): Set it here. Perform instruction splitting
179 after reload has completed if we will be running the scheduler
182 Sat Oct 31 12:30:02 1998 Jeffrey A Law (law@cygnus.com)
184 * jump.c (jump_optimize): Initialize mappings from INSN_UID to
185 EH region if exceptions are enabled and we're performing cross
187 (find_cross_jump): Exit loop if the insns are in different EH regions.
189 Sat Oct 31 10:02:48 1998 Mark Mitchell <mark@markmitchell.com>
191 * dwarf2out.c (output_call_frame_info): Use
192 ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
194 Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
196 Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
197 * c-common.c (check_format_info): Don't check for the 'x'
198 format character twice, instead check for 'x' and 'X'
200 Fri Oct 30 14:50:25 1998 Jeffrey A Law (law@cygnus.com)
202 * configure.in (assembler features): Also make gas is configured if
203 we find it in the souce tree.
205 Fri Oct 30 13:23:20 1998 Richard Henderson <rth@cygnus.com>
207 * i386.c (i386_comp_type_attributes): Compare whether the
208 attributes are defined, not their tree nodes.
210 Fri Oct 30 11:39:47 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
212 * configure.in (gxx_include_dir): bitten by autoconf quoting
216 Fri Oct 30 10:43:29 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
218 * configure.in: Ignore non-absolute value in $AS.
220 Fri Oct 30 00:54:25 1998 Peter Jakubek <pjak@snafu.de>
222 * m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
224 Fri Oct 30 00:42:34 1998 Mark Elbrecht <snowball3@usa.net>
226 * configure.in (msdosdjgpp): Set exeext and target_alias.
228 Thu Oct 29 23:55:43 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
230 * flow.c (XNMALLOC): New macro.
231 (flow_int_list_blocks, basic_block_succ, basic_block_pred): New
233 (add_edge, add_edge_to_label): New static functions.
234 (free_bb_memory): New function.
235 (flow_delete_insn): Delete function.
236 (basic_block_drops_in): Delete variable.
237 (find_basic_blocks): Allocate and initialize basic_block_head,
238 basic_block_succ. Don't allocate basic_block_drops_in.
239 Call free_bb_memory at the beginning.
240 (find_basic_blocks_1): Don't do multiple passes.
241 Delete code to compute basic_block_drops_in.
242 After calling make_edges, mark blocks reached by current block live.
243 Update test for unreachable live blocks.
244 (mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
246 Simplify to call add_edge_to_label when a LABEL_REF is found.
247 (make_edges): Simplify to call add_edge_to_label instead of
248 mark_label_ref most of the time.
249 Compute here whether control drops into the next block.
250 (delete_unreachable_blocks): Return void. All callers changed.
251 Delete unreachable blocks in reverse order.
252 After deleting all unreachable blocks, renumber the remaining ones
253 and update n_basic_blocks.
254 (delete_block): Speed up deletion a bit.
255 Don't set basic_block_drops_in for deleted blocks.
256 (free_basic_block_vars): Don't free basic_block_drops_in.
257 (life_analysis_1): Update to use new edge representation.
258 (dump_flow_info): Delete code to print basic block info; call
259 dump_bb_data instead.
260 (compute_preds_succs): Delete code to recompute basic_block_drops_in
261 and uid_block_number.
262 Simply copy the previously computed cfg.
263 (dump_bb_data): New arg LIVE_INFO. All callers changed.
264 Print register lifetime information if LIVE_INFO is nonzero.
265 * basic-block.h (dump_bb_data): Adjust prototype.
266 * gcse.c (gcse_main): Update call to dump_bb_data.
267 * rtl.h (free_bb_memory): Declare.
268 * toplev.c (rest_of_compilation): Call free_bb_memory.
270 * reload1.c (struct elim_table): Delete MAX_OFFSET member.
271 (update_eliminable_offsets): Don't compute it.
272 (set_initial_elim_offsets): Don't initialize it.
273 Break out some code into set_initial_label_offsets so the rest of
274 this function can be called from reload_as_needed.
275 Assume that INITIAL_FRAME_POINTER_OFFSET is defeined when
276 ELIMINABLE_REGS isn't.
277 (set_initial_label_offsets): New function, broken out of
278 set_initial_elim_offsets.
279 (set_offsets_for_label): New function, broken out of set_label_offsets
280 and reload_as_needed.
281 (reload): Call the two new functions.
282 (reload_as_needed): Call set_initial_elim_offsets instead of
283 duplicating the code. Likewise for set_offsets_for_label.
285 * reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
286 (emit_reload_insns): Ensure that when we set reg_reloaded_valid for
287 any hard reg, reg_reloaded_dead contains valid data.
289 Thu Oct 29 22:30:54 1998 Marcus Meissner <Marcus.Meissner@informatik.uni-erlangen.de>
291 * i386.c (i386_comp_type_attributes): Return nonzero for mismatched
292 "stdcall" and "cdecl" attributes.
294 Thu Oct 29 19:05:17 1998 Jim Wilson <wilson@cygnus.com>
296 * sched.c (update_flow_info): Add code to ! found_orig_dest case to
297 handle deleted no-op moves of hard registers.
298 * haifa-sched.c (update_flow_info): Likewise.
300 Thu Oct 29 18:07:47 1998 Jeffrey A Law (law@cygnus.com)
302 * mips.md (reload_{in,out}{si,di}): Emit a USE of HILO at the end
303 of the sequences to reload the HILO register which do not actually
306 Thu Oct 29 12:39:35 1998 Jim Wilson <wilson@cygnus.com>
308 * c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
310 Thu Oct 29 14:10:22 EST 1998 Andrew MacLeod <amacleod@cygnus.com>
312 * except.c (emit_eh_context): Make the EH context register stay alive
313 at -O0 so stupid.c doesn't get confused.
315 1998-10-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
317 * emit-rtl.c (try_split): Do not try to split a BARRIER.
319 Thu Oct 29 01:33:54 1998 Jan Hubicka <hubicka@freesoft.cz>
320 Jeffrey A Law (law@cygnus.com)
322 * i386.md: Change ix86_cpu == PROCESSOR_PENTIUM to TARGET_PENTIUM
323 (zero_extendsidi2): Use # in output template and handle completely by
325 (zero_extend splitters): New define_splits.
326 (ashiftrt_32): New pattern.
328 Wed Oct 28 22:58:35 1998 Jason Merrill <jason@yorick.cygnus.com>
330 * tree.c (append_random_chars): New fn.
331 (get_file_function_name_long): Use it.
333 Wed Oct 28 22:27:05 1998 Richard Henderson <rth@cygnus.com>
335 * Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
336 (LIBCPP_OBJS): New. Add cppulp.o.
337 (cppmain, fix-header): Depend on and use libcpp.a.
338 * configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
339 of the individual object files.
340 * objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
343 * cccp.c (user_label_prefix): New.
344 (main): Set it off -f*leading-underscore.
345 (special_symbol): Use it.
346 * cpplib.c (special_symbol): Likewise.
347 (cpp_handle_option): Handle -f*leading-underscore.
348 * cppulp.c: New file.
350 * output.h (user_label_prefix): Declare it.
351 * dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
352 * toplev.c (f_options, main): Handle -f*leading-underscore.
354 * defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
355 referencing USER_LABEL_PREFIX directly.
356 * config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
357 * m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
358 * final.c (asm_fprintf): Use user_label_prefix instead.
359 * arm/thumb.c (thumb_print_operand): Likewise.
361 * gcc.c (default_compilers): Pass -f*leading-underscore on to
362 cpp wherever appropriate.
364 Wed Oct 28 23:09:25 1998 Robert Lipe <robertl@dgii.com>
366 * sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
367 specific compiler switches.
369 Wed Oct 28 21:05:53 1998 Jeffrey A Law (law@cygnus.com)
371 * Makefile.in (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
374 Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
376 * gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
377 structure which has exactly the members provided by EXTRA_SPECS.
378 Xmalloc() the real `extra_specs', and initialize it from this
379 intermediate structure.
381 * alpha.h (EXTRA_SPECS): Revert change for missing initializers.
383 * mips.h (EXTRA_SPECS): Likewise.
385 * sparc.h (EXTRA_SPECS): Likewise.
387 Wed Oct 28 16:46:07 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
389 * function.c (purge_addressof_1): Instead of aborting when a
390 bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
391 work just put the ADDRESSOF on stack. Otherwise remember all such
392 successfull replacements, so that exactly the same replacements
393 can be made on the REG_NOTEs. Remove the special case for CALL
395 (purge_addressof_replacements): New variable.
396 (purge_addressof): Clear it at end.
398 1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
400 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
401 (lang_init): Call check_newline always.
402 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
403 cpp_start_read, set yy_cur and yy_lim to read from
404 parse_in.token_buffer, so that we'll see the first #line
406 * cpplib.c (cpp_start_read): finclude the main input file
407 before processing -include/-imacros. Process -imacros and
408 -include separately, and handle -include by stacking a
409 buffer for the file in question as if it'd been #included.
410 * toplev.c (documented_lang_options) Recognize -H when
413 1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
415 * cpplib.c: Merge do_once into do_pragma. Break file handling
416 code out of do_include.
417 Move append_include_chain, deps_output,
418 file_cleanup, redundant_include_p, import_hash,
419 lookup_import, add_import, read_filename_string, read_name_map,
420 open_include_file, finclude, safe_read to cppfiles.c.
421 Move prototypes for deps_output, append_include_chain,
422 finclude to cpplib.h. Move definition of struct
423 file_name_list there also.
425 * cppfiles.c: New file. Contains all the above functions
426 broken out of cpplib.c; also hack_vms_include_specification
427 from cccp.c and find_include_file, a new function broken out of
430 * Makefile.in (cppmain): Depend on cppfiles.o.
431 (fix-header): Likewise.
432 (cppfiles.o): New target.
433 * configure.in (--enable-c-cpplib): Add cppfiles.o to
434 extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
436 Wed Oct 28 14:06:49 1998 Jim Wilson <wilson@cygnus.com>
438 * dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
439 if pending_types is non-zero.
440 (dwarfout_finish): Verify pending_types is zero before finishing.
442 Wed Oct 28 10:29:09 1998 Nick Clifton <nickc@cygnus.com>
444 * expr.c (convert_move): Use shifts to perform the move if a
445 suitable extend pattern cannot be found. Code written by
446 Richard Henderson <rth@cygnus.com>.
448 Wed Oct 28 03:59:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
450 * regclass.c (renumber, regno_allocated): New static variables, moved
451 out of allocate_reg_info.
452 (allocate_reg_info): Move these two variables outside the function.
453 Move code to free memory into new function free_reg_info.
454 (free_reg_info): New function, broken out of allocate_reg_info.
455 * toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
456 * rtl.h (allocate_reg_info): Don't declare.
457 (free_reg_info): Declare.
459 * final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
461 Wed Oct 28 02:38:12 1998 Jason Merrill <jason@yorick.cygnus.com>
463 * toplev.c (compile_file): Temporarily revert last change.
465 Wed Oct 28 00:00:35 1998 Jason Merrill <jason@yorick.cygnus.com>
467 * c-typeck.c (convert_for_assignment): Parenthesize.
469 1998-10-28 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
471 * reload1.c (delete_output_reload): Avoid ambigous else.
473 Wed Oct 28 00:10:35 1998 Jeffrey A Law (law@cygnus.com)
475 * toplev.c (compile_file): Call allocate_reg_info to free register
477 * rtl.h (allocate_reg_info): Declare.
479 * PROJECTS: Remove entry for local spilling.
481 * final.c (cleanup_subreg_operands): New function.
482 (final_scan_insn): Use it.
483 (alter_subreg): Clear the "used" field when we turn a SUBREG into
485 * reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
486 operands when reload has finished.
487 * reload.h (cleanup_subreg_operands): Declare..
488 * flow.c (life_analysis_1): No longer delete CLOBBER insns after
489 reload. Handled in reload itself.
491 Tue Oct 27 23:32:34 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
493 * reload1.c (verify_initial_offsets): New function.
494 (reload): Call it after reload_as_needed. Also verify that the frame
495 size stays constant during reload_as_needed.
496 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
498 * reload.h (struct insn_chain): Add need_operand_change element.
499 * reload1.c (new_insn_chain): Clear it.
500 (calculate_needs_all_insns): Set it; don't overload need_reload.
501 (reload_as_needed): Use it.
503 * reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
504 reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
505 and reload_address_index_reg_class.
506 (find_reloads_address_1): Likewise.
507 * reload.h (reload_address_base_reg_class,
508 reload_address_index_reg_class): Don't declare.
509 * reload1.c (reg_old_renumber, pseudo_previous_regs,
510 pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
511 (used_spill_regs): Now static.
512 (reload_address_base_reg_class, reload_address_index_reg_class,
513 regs_explicitly_used, counted_for_groups, counted_for_nongroups,
514 basic_block_needs, max_needs, group_size, group_mode, max_groups,
515 max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
518 (init_reload): Delete code to compute base/index reg classes.
519 (reload): Delete variable J.
520 Delete code to manage basic_block_needs.
521 Don't compute regs_explicitly_used.
522 Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
523 pseudo_previous_regs.
524 Initialize bad_spill_regs_global.
525 Don't call order_regs_for_reload here.
526 Don't initialize spill_reg_order and n_spills.
527 Don't forbid explicitly used regs to be used for spill regs.
528 Change main loop to infinite loop, with explicit break statements.
529 Make SOMETHING_CHANGED variable local to that loop.
530 Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
531 max_groups_insn, max_nongroups_insn, group_size, group_mode.
532 Make sure spilled_speudos is cleared before calling spill_hard_reg or
534 Don't call dump_needs.
535 Delete code to reset potential_reload_regs.
536 Delete code to terminate loop conditional on the global needs variables
537 showing no further needs.
538 (calculate_needs_all_insns): Return void. All callers changed.
539 Initialize somehing_needs_elimination here, not in reload.
540 Delete avoid_return_reg kludge.
541 (calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
543 Initialize the group_mode and group_size elements of the arg CHAIN.
544 Delete code to manage basic_block_needs.
545 Operate on elements of CHAIN instead of global variables.
546 Delete avoid_return_reg kludge.
547 (find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
549 Operate on elements of CHAIN instead of global variables.
550 Delete special SMALL_REGISTER_CLASSES code.
551 Delete spill_failure code; now in new_spill_reg.
552 (find_group): Lose GLOBAL arg, take CHAIN arg, return void.
554 Operate on elements of CHAIN instead of global variables.
555 (maybe_mark_pseudo_spilled): New static function.
556 (find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
558 Operate on elements of CHAIN instead of global variables.
559 Call order_regs_for_reload here, not in reload.
560 Initialize spill_reg_order and n_spills.
561 Simplify test whether an asm insn is involved.
562 Delete spill_failure code; now in new_spill_reg.
563 Call maybe_mark_pseudo_spilled for everything marked as live in
564 CHAIN. Merge CHAIN's used_spill_regs into the global variable
566 (dump_needs): Take CHAIN arg. No longer static, to prevent the
567 compiler from optimizing this function (now unused) away.
568 Operate on elements of CHAIN instead of global variables.
569 (possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
571 Operate on elements of CHAIN instead of global variables.
572 (count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
573 take CHAIN arg. All callers changed.
574 Operate on elements of CHAIN instead of global variables.
575 (new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
576 CHAIN, NONGROUP args. Return void. All callers changed.
577 Verify caller isn't trying to spill a pseudo.
578 Simplify test for illegal reg, just use bad_spill_regs.
579 Generate better error messages.
580 Operate on elements of CHAIN instead of global variables.
581 Mark spilled register in CHAIN's used_spill_regs element.
582 Don't call spill_hard_reg.
583 (spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
584 Mark spilled hard regs in bad_spill_regs_global.
585 Mark affected pseudos in spilled_pseudos, but don't spill them.
586 (ior_hard_reg_set): New static function.
587 (finish_spills): Return int. All callers changed.
588 Compute spill_reg_order, n_spills and spill_regs here. Also update
589 regs_ever_live for regs used as spills.
590 For every pseudo in spilled_pseudos, spill it and mark the previous
591 hard reg it had in pseudo_previous_regs. Compute which hard regs
592 arseudo): New static function.
593 (order_regs_for_reload): Take CHAIN arg. All callers changed.
594 Initialize bad_spill_regs from bad_spill_regs_global, then merge any
595 hard registers explicitly used across the current insn into the set.
596 Compute hard_reg_n_uses taking only pseudos live across this insn
598 Tweak sorting of potential_reload_regs.
599 (compare_spill_regs): Delete function.
600 (reload_as_needed): Don't sort the spill_regs array, it's computed
601 in proper order in finish_spills.
602 Delete avoid_return_reg kludge.
603 Delete code to manage basic_block_needs.
604 (allocate_reload_reg): Minor speed/readability tweaks.
605 Operate on elements of CHAIN instead of global variables.
606 (choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
607 Delete avoid_return_reg kludge.
608 Initialize reload_reg_used from CHAIN's used_spill_regs element.
609 Delete unused label FAIL.
610 (reload_combine): Replce reload_address_index_reg_class with
612 Don't use used_spill_regs to determine information about lifetime of
615 Tue Oct 27 13:15:02 1998 Nick Clifton <nickc@cygnus.com>
617 * toplev.c (display_help): Ignore empty target specific
618 options, and if -W is also specified on the command line then
619 display undocumented options.
621 * config/arm/arm.c: Updated with changes in devo sources.
622 * config/arm/arm.h: Updated with changes in devo sources.
623 * config/arm/lib1funcs.asm: Updated with changes in devo sources.
624 * config/arm/lib1thumb.asm: Add ELF support.
626 Tue Oct 27 16:11:43 1998 David Edelsohn <edelsohn@mhpcc.edu>
628 * collect2.c (aix64_flag): New variable.
629 (main, case 'b'): Parse it.
630 (GCC_CHECK_HDR): object magic number must match mode.
631 (scan_prog_file): Only check for shared object if valid header.
632 Print debugging if header/mode mismatch.
634 Tue Oct 27 10:15:02 1998 Nick Clifton <nickc@cygnus.com>
636 Added support for arm-elf-linux configuration, submitted by Philip
637 Blundell <pb@nexus.co.uk>, and integrated this with the arm-elf
638 code developed by Catherine Moore <clm@cygnus.com>. The following
641 * configure.in: Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
644 * configure: Regenerated.
646 * config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
647 USER_LABEL_PREFIX and LOCAL_LABEL_PREFIX. Make other macro
648 definitions conditional on their not having been already defined.
650 * config/arm/lin1funcs.asm: Add ELF only macros to generate .size
651 and .type directives, and add "(PLT)" qualification to function
654 * config/arm/linux.h: Deleted. This file is now superceeded by
655 either linux-elf.h or linux-aout.h.
657 * config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
658 (CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
660 Move definitions from old linux.h file here.
662 * config/arm/elf.h: New file. Generic ARM/ELF support.
664 * config/arm/linux-aout.h: New file. Support for Linux with a.out.
666 * config/arm/linux-elf.h: New file. Support for Linux with ELF.
668 * config/arm/linux-elf26.h: New file. Support for Linux with ELF
669 using the 26bit APCS.
671 * config/arm/unknown-elf.h: New file. Support for OS'es other
674 * config/arm/t-arm-elf: New file. makefile fragment for arm-elf
677 * config/arm/coff.h: Include aout.h for basic assembler macros.
678 Add support for -mstructure_size_boundary=<n> command line option.
680 * config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
681 command line option. Make macro definitions conditional on their
682 not having been already defined.
684 * config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
688 Tue Oct 27 08:56:46 1998 Andrew MacLeod <amacleod@cygnus.com>
690 * dwarfout.c (ASM_OUTPUT_DWARF_STRING_NEWLINE): ASM_OUTPUT_DWARF_STRING
691 has been changed to not include a newline. Use this macro instead.
692 (output_enumeral_list, const_value_attribute, name_attribute,
693 comp_dir_attribute, prototyped_attribute, producer_attribute,
694 inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
695 dwarfout_file_scope_decl, generate_new_sfname_entry,
696 generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
697 ASM_OUTPUT_DWARF_STRING_NEWLINE macro.
699 Mon Oct 26 13:35:02 1998 Richard Henderson <rth@cygnus.com>
701 * combine.c (subst): Process the inputs to a parallel asm_operands
704 Mon Oct 26 13:32:31 1998 Richard Henderson <rth@cygnus.com>
706 * stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
708 Mon Oct 26 12:53:14 1998 Jeffrey A Law (law@cygnus.com)
710 * tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
712 Mon Oct 26 00:36:58 PST 1998 Jeff Law (law@cygnus.com)
714 * version.c: Bump for snapshot.
716 Sun Oct 25 23:36:52 1998 Jason Merrill <jason@yorick.cygnus.com>
718 * stmt.c (expand_fixup): Set fixup->before_jump to a
719 NOTE_INSN_DELETED instead of a NOTE_INSN_BLOCK_BEG.
721 Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
723 * Makefile.in (recog.o): Depend on toplev.h.
724 (insn-emit.o): Depend on recog.h.
725 (insn-peep.o): Depend on recog.h and insn-config.h.
727 * combine.c (simplify_set): Remove unused variable `scratches'.
729 * final.c (final_scan_insn): Wrap declaration of variables `vlen'
730 and `idx' in macro conditional controlling their use.
732 * genemit.c (main): Make the generated output file include
733 recog.h. Don't have it declare `insn_operand_constraint', since
734 we get it from recog.h.
736 * genpeep.c (main): Make the generated output file include
737 insn-config.h and recog.h.
739 * recog.c: Include toplev.h.
740 (extract_insn): Remove unused variable `p'.
742 * regclass.c (fix_register): Add missing braces around initializer
744 (allocate_reg_info): Move variable `i' into the scope where it is
745 used. Change its type to `size_t'.
747 Sun Oct 25 13:10:15 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
749 * reload.c (push_reload): When merging reloads, make sure
750 that reload_in_reg and reload_in are from the same reload in
753 Sun Oct 25 12:07:00 1998 Mumit Khan <khan@xraylith.wisc.edu>
755 * i386/crtdll.h (CPP_PREDEFINES): Fix typo.
756 * i386/mingw32.h (CPP_PREDEFINES): Likewise.
758 Fri Oct 23 23:42:03 1998 David Edelsohn <edelsohn@mhpcc.edu>
760 * loop.c (loop_has_tablejump): New variable.
761 (prescan_loop): Scan for it.
762 (insert_bct): Replace explicit scan with use of it.
763 * regclass.c (regclass): Restore loop variable j.
764 (record_reg_classes): Deterine op_types modifiers and initialize
765 classes[i] before matching constraints. Handle matching
768 Fri Oct 23 13:55:48 1998 Jim Wilson <wilson@cygnus.com>
770 * m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
773 Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
775 * mips.h (EXTRA_SPECS): Add missing initializers.
777 Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
779 * sparc.h (EXTRA_SPECS): Add missing initializers.
780 (sparc_defer_case_vector): Provide a prototype.
782 * svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
783 comparing it to the result of a pointer subtraction.
785 Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
787 * alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
788 the argument to (unsigned char).
790 * alpha.h (EXTRA_SPECS): Add missing initializers.
791 (ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
794 Fri Oct 23 13:12:35 1998 Jeffrey A Law (law@cygnus.com)
796 * flow.c (life_analysis_1): Enable "rescan" code after reload.
797 (propagate_block): Delete dead code after reload.
799 * sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
800 back Oct 15, 1998 change.
801 * haifa-sched.c (update_flow_info): Likewise.
802 * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
804 * mn10200.md (truncated shift): Accept constant inputs too.
806 Fri Oct 23 04:06:57 1998 Richard Earnshaw (rearnsha@arm.com)
808 * machmode.h (mode_mask_array): No longer const.
809 * rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
811 Fri Oct 23 11:19:06 1998 Martin v. Löwis <loewis@informatik.hu-berlin.de>
813 * frame.c: Somewhat explain `FDE'.
814 Suggested by Brendan Kehoe
816 Fri Oct 23 00:56:11 1998 Jason Merrill <jason@yorick.cygnus.com>
818 * expr.c (pending_chain): Move up.
819 (save_expr_status): Do save pending_chain.
820 (restore_expr_status): And restore it.
821 * function.h (struct function): Add pending_chain.
823 1998-10-23 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
825 * reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
826 did not match the code.
828 Fri Oct 23 00:07:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
830 * regclass.c (regclass): Break out some code into new function
831 scan_one_insn, and into regclass_init.
832 (init_cost): New static variable, moved out of regclass.
833 (regclass_init): Initialize it here, not in .
834 (scan_one_insn): New static function, broken out of regclass.
835 * recog.c (apply_change_group): Break out some code into new
836 function insn_invalid_p.
837 (insn_invalid_p): New static fn, broken out of apply_change_group.
839 Thu Oct 22 22:34:42 1998 Jim Wilson <wilson@cygnus.com>
841 * reload1.c (reload_as_needed): When rewrite POST_INC, verify
842 reg_reloaded_contents matches incremented pseudo.
844 * v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
846 Fri Oct 23 11:11:56 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
848 * rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
849 addressing modes with side effects. These are currently
850 placeholders for the C4x target.
852 Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
854 * loop.c (express_from): Make sure that when generating a PLUS of
855 a PLUS, any constant expression appears on the outermost PLUS.
857 Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com)
859 * Makefile.in (distdir-cvs, distdir-start): Clean up so it
860 works if "$(srcdir)" != ".".
862 Wed Oct 21 19:23:59 1998 Jim Wilson <wilson@cygnus.com>
864 * expmed.c (store_bit_field): If need to add a SUBREG, then remove
865 existing SUBREG if we can, otherwise abort.
867 Wed Oct 21 09:58:51 1998 Mark Mitchell <mark@markmitchell.com>
869 * c-common.c (c_apply_type_quals_to_decl): Don't crash when
870 `restrict' is applied to a non-pointer variable.
872 Wed Oct 21 09:18:58 1998 Mark Mitchell <mark@markmitchell.com>
874 * invoke.texi: Document -flang-isoc9x.
876 * Makefile.in (OBJS): Add splay-tree.o.
877 (c-common.o): Depend on rtl.h.
878 (splay-tree.o): List dependencies and provide build rule.
880 * rtl.h (record_alias_subset): New function.
881 * alias.c: Include splay-tree.h.
882 (alias_set_entry): New type.
883 (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Remove.
884 (DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
885 (mems_in_disjoin_alias_sets_p): New function.
886 (alias_set_compare): Likewise.
887 (insert_subset_children): Likewise.
888 (get_alias_set_entry): Likewise.
890 * tree.h (TYPE_RESTRICT): New macro.
891 (TYPE_UNQUALIFIED): New manifest constant.
892 (TYPE_QUAL_CONST): Likewise
893 (TYPE_QUAL_VOLATILE): Likewise.
894 (TYPE_QUAL_RESTRICT): Likewise.
895 (tree_type): Add restrict_flag. Reduce count of free bits.
896 (DECL_POINTER_ALIAS_SET): New macro.
897 (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
898 (tree_decl): Add pointer_alias_set.
899 (build_qualified_type): New function.
900 (build_type_variant): Define in terms of build_qualified_type.
901 * tree.c (set_type_quals): New function.
902 (make_node): Initializae DECL_POINTER_ALIAS_SET.
903 (build_type_attribute_variant): Use build_qualified_type and
905 (build_type_variant): Rename, and modify, to become...
906 (build_qualified_type): New function.
907 (build_complex_type): Use set_type_quals.
909 * c-tree.h (C_TYPE_OBJECT_P): New macro.
910 (C_TYPE_FUNCTION_P): Likewise.
911 (C_TYPE_INCOMPLETE_P): Likewise.
912 (C_TYPE_OBJECT_OR_INCOMPLETE_P): Likewise.
913 (c_apply_type_quals_to_decl): New function.
914 (c_build_qualified_type): New function.
915 (c_build_type_variant): Define in terms of c_build_qualified_type.
916 (flag_isoc9x): Declare.
917 * c-typeck.c (qualify_type): Use c_build_qualified_type.
918 (common_type): Change to use TYPE_QUALS.
919 (comptypes): Likewise.
920 (convert_for_assignment): Likewise.
921 * c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
922 * c-decl.c (flag_isoc9x): Define.
923 (c_decode_option): Handle -flang-isoc9x.
924 (grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
925 c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
926 * c-lex.c (init_lex): Deal with restrict.
927 (init_lex): Don't treat restrict as a reserved word in
928 -traditional mode, or without -flang-isoc9x.
929 * c-lex.h (rid): Add RID_RESTRICT.
930 * c-parse.gperf (restrict, __restrict, __restrict__): Make
931 equivalent to RID_RESTRICT.
932 * c-parse.in (TYPE_QUAL): Update comment.
933 * c-common.c: Include rtl.h.
934 (c_find_base_decl): New function.
935 (c_build_type_variant): Rename, and modify, to become ...
936 (c_build_qualified_type): New function.
937 (c_apply_type_quals_to_decl): Likewise.
938 (c_get_alias_set): For INDIRECT_REFs, check to see if we can find
939 a particular alias set for the reference.
940 * toplev.c (documented_lang_options): Add -flang-isoc9x.
942 Wed Oct 21 09:15:06 1998 Nick Clifton <nickc@cygnus.com>
944 * config/arm/arm.h (TARGET_SWITCHES): Document arm specific
945 command line switches.
947 Tue Oct 20 10:04:51 1998 Graham <grahams@rcp.co.uk>
949 * reload.c (loc_mentioned_in_p): Add missing braces to bind
952 Mon Oct 19 16:34:05 1998 Tom Tromey <tromey@cygnus.com>
954 * gcc.c (option_map): Added --classpath and --CLASSPATH.
956 Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <gavin@cygnus.com>
958 * regclass.c (fix_register): Add error message.
959 * invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
962 Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
964 * c-decl.c (warn_missing_noreturn): New global variable.
965 (c_decode_option): Check for new flags -W{no-}missing-noreturn.
966 (finish_function): Implement missing noreturn warning.
968 * c-tree.h (warn_missing_noreturn): Declare extern.
970 * invoke.texi: Document new flags.
972 * toplev.c (documented_lang_options): Add description.
974 Tue Oct 20 22:16:11 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
976 * config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
977 loop optimization stable for the C4x.
978 (c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
979 c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
980 c4x_rptb_emit_init, c4x_rptb_process): Deleted (superceded by BCT
982 (c4x_address_conflict): Be more paranoid when packing a volatile
983 memref in a parallel load/store.
985 Tue Oct 20 21:56:05 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
987 * config/c4x/c4x.md (repeat_block_top, repeat_block_end,
988 repeat_block_filler): Deleted.
989 (*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
990 Condition code not set if destination register from 'c' class.
991 (*subbqi3_carry_clobber): Fix typo.
993 1998-10-18 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
995 * reorg.c (steal_delay_list_from_target) Check for insns that
996 modify the condition codes and effect the direction of the jump
999 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1001 * function.c (purge_addressof_1): Replace call to
1002 emit_insns_before() with emit_insn_before().
1004 Mon Oct 19 19:34:03 1998 Mike Stump <mrs@wrs.com>
1006 * libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
1008 Mon Oct 19 13:26:24 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1010 * jump.c (sets_cc0_p): Compile only if HAVE_cc0.
1012 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1014 * gcse.c (compute_hash_table): Correctly identify hard regs which are
1015 clobbered across calls.
1017 * loop.c (scan_loop): Be more selective about what invariants are
1018 moved out of a loop.
1020 Mon Oct 19 10:46:58 PDT 1998 Jeff Law (law@cygnus.com)
1022 * version.c: Bump for snapshot.
1024 Mon Oct 19 11:40:56 1998 Jeffrey A Law (law@cygnus.com)
1026 * libgcc2.c (eh_context_static): Do not call malloc to allocate the
1027 static eh_context structure.
1029 Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1031 * combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
1033 (try_combine): Don't update max_scratch.
1034 * flow.c (max_scratch, num_scratch): Delete variables.
1035 (life_analysis_1): Don't initialize max_scratch.
1036 (propagate_block): Don't update max_scratch.
1037 (mark_set_1): Don't increment num_scratch.
1038 * regs.h (max_scratch): Delete declaration.
1040 Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com)
1042 * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
1043 is nonzero. This is temporary!
1045 * sched.c (update_flow_info): Handle death notes made invalid by
1046 instruction splitting. Partially reverts Oct 15, 1998 patch.
1047 * haifa-sched.c (update_flow_info): Likewise.
1049 Sun Oct 18 17:31:26 1998 Jeffrey A Law (law@cygnus.com)
1051 * function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
1052 if it has a nonzero DECL_INITIAL.
1054 Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1056 * Makefile.in (flow.o): Depend on recog.h.
1058 * cpplib.h (directive_table): Add missing initializiers.
1059 (finclude): Change type of variable `bsize' to size_t.
1061 * cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
1063 * dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
1065 * fix-header.c (lookup_std_proto): Cast the result of `strlen' to
1066 `int' when comparing against one.
1067 (cpp_file_line_for_message): Mark parameter `pfile' with
1069 (cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
1071 * flow.c: Include recog.h.
1072 (sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
1074 * function.c (thread_prologue_and_epilogue_insns): Mark parameter
1075 `f' with ATTRIBUTE_UNUSED.
1076 (reposition_prologue_and_epilogue_notes): Likewise.
1078 * genopinit.c (gen_insn): Cast argument of ctype functions to
1081 * haifa-sched.c: Include recog.h.
1082 (blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
1083 comparing against one.
1085 * libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
1087 * mips-tfile.c (parse_end): Cast the argument of ctype function to
1089 (parse_ent): Likewise.
1090 (parse_input): Likewise.
1092 * optabs.c (init_libfuncs): Likewise.
1094 * protoize.c (find_rightmost_formals_list): Likewise.
1096 * recog.h (const_double_operand): Fix typo in prototype.
1098 * tlink.c (scan_linker_output): Cast the argument of ctype
1099 function to `unsigned char'.
1101 * toplev.c (check_lang_option): Cast the result of `strlen' to
1102 `int' when comparing against one.
1104 Sat Oct 17 13:09:09 1998 Graham <grahams@rcp.co.uk>
1106 * gcse.c (dump_cuid_table): Correct typo.
1108 Sat Oct 17 11:02:47 1998 Nick Clifton <nickc@cygnus.com>
1110 * toplev.c (display_help): Prepend '-m' to target specific
1112 (check_lang_option): Ignore text after end of first word of a
1113 language specific option.
1115 Sat Oct 17 02:26:03 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1117 * reload1.c (reg_used_by_pseudo): New static variable.
1118 (choose_reload_regs): Initialize it.
1119 Use it instead of testing spill_reg_order to determine whether a
1120 pseudo is live in a hard register across the current insn.
1121 Fix a typo in a reference to reload_reg_rtx.
1123 * flow.c (propagate_block): Replace code that computes and uses
1124 regs_sometimes_live with simpler code that just walks the set of
1125 currently live registers.
1127 * Makefile.in (insn-extract.o): Fix dependencies.
1128 * genextract.c (main): Generate includes for insn-config.h and
1130 Delete generation of declarations which are now in recog.h.
1131 * genrecog.c (main): Delete generation of definitions which are
1133 * local-alloc.c (block_alloc): Use extract_insn and the variables
1134 it sets up instead of looking up values by insn_code.
1135 * recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
1136 recog_dup_num): Define here instead of generating the definition in
1138 (recog_n_operands, recog_n_dups, recog_n_alternatives,
1139 recog_operand_mode, recog_constraints, recog_operand_address_p):
1141 (extract_insn): New function.
1142 * recog.h (extract_insn): Declare function.
1143 (which_alternative, recog_n_operands, recog_n_dups,
1144 recog_n_alternatives, recog_operand_mode, recog_constraints,
1145 recog_operand_address_p): Declare variables.
1146 * regclass.c (n_occurrences): New static function.
1147 * reload.c (n_occurrences): Delete function.
1148 (find_reloads): Use extract_insn.
1149 * reload.h (n_occurrences): Delete declaration.
1151 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
1153 * reload1.c (reload_as_needed): Fix test for when to call
1154 update_eliminable_offsets.
1156 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1158 Fix consistency problems with reg_equiv_{mem,address};
1159 Improve reload inheritance;
1161 * reload.c (reload_out_reg): New variable.
1162 (loc_mentioned_in_p, remove_address_replacements): New functions.
1163 (remove_replacements): Deleted.
1164 (push_reload): Set reload_out_reg[i].
1165 When merging, also set reload_{in,out}_reg[i], and remove
1166 duplicate address reloads.
1167 (combine_reloads): Copy reload_out_reg[i].
1168 (find_reloads): Do make_memloc substitution also when
1169 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1171 Include *recog_operand_loc in commutativity operand changes.
1172 Generate optional output reloads.
1173 Delete reference to n_memlocs. Don't set *recog_operand_loc before
1174 processing operands. Call make_memloc in reg_equiv_address code.
1175 Set *recog_operand_loc only after processing operands, and only
1176 if replace is true. Return a value.
1177 When changing address reload types for operands that didn't get
1178 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
1179 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
1180 Don't emit USEs for pseudo SUBREGs when not replacing.
1181 (find_reloads_address): Do make_memloc substitution also when
1182 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
1184 (find_reloads_toplev): Likewise.
1185 Call make_memloc in reg_equiv_address code.
1186 (debug_reload_to_stream): Add code to output reload_out_reg.
1187 (make_memloc): Delete local variable i, ifdefed out code, and
1188 references to memlocs and n_memlocs.
1189 (memlocs, n_memlocs): Delete.
1190 (push_secondary_reload): Clear reload_out_reg.
1191 (find_reloads_address_1): Provide memrefloc argument to all calls
1192 to find_reloads_address.
1193 In AUTO_INC code, handle non-directly addressable equivalences properly.
1194 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
1195 (find_reloads): Add return type.
1196 (remove_address_replacements, deallocate_reload_reg): Declare.
1197 * reload1.c (num_not_at_initial_offset): No longer static.
1198 (delete_address_reloads, delete_address_reloads_1): Likewise.
1199 (deallocate_reload_reg): New function.
1200 (spill_reg_stored_to): New array.
1201 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
1202 (eliminate_regs_in_insn): Move assignments of previous_offset and
1203 max_offset fields, and recalculation of num_not_at_initial_offset
1204 into new static function:
1205 (update_eliminable_offsets) .
1206 (reload_as_needed): Call update_eliminable_offsetss after calling
1208 Call forget_old_reloads_1 with contents of reloaded auto_inc
1209 expressions if the actual addressing can't be changed to match the
1211 (choose_reload_regs): For inheritance, replace
1212 reload_reg_free_before_p test with reload_reg_used_at_all test, and
1213 remove stand-alone reload_reg_used_at_all test.
1214 Use reload_out_reg to determine which reload regs have output reloads.
1215 Treat reload_override_in more similar to inherited reloads.
1216 Handle (subreg (reg... for inheritance.
1217 For flag_expensive_optimizations, add an extra pass to remove
1218 unnecessary reloads from known working inheritance.
1219 Delete obsolete code for pseudos replaced with MEMs.
1220 Handle inheritance from auto_inc expressions.
1221 (emit_reload_insns): If reload_in is a MEM, set OLD to
1223 Don't reload directly from oldequiv; if it's a pseudo with a
1224 stack slot, use reload_in[j].
1225 Check that reload_in_reg[j] is a MEM before replacing reload_in
1226 from reg_reloaded_contents.
1227 Include non-spill registers in reload inheritance processing.
1228 Also try to use reload_out_reg to set spill_reg_store /
1229 reg_last_reload_reg.
1230 In code to set new_spill_reg_store, use single_set to find out if
1231 there is a single set.
1232 Add code that allows to delete optional output reloads.
1233 Add code to allow deletion of output reloads that use no spill reg.
1234 At the end, set reload_override_in to oldequiv.
1235 Also call delete_output_reload if reload_out_reg is equal to old
1237 Add code to call delete_output_reload for stores with no matching load.
1238 Set / use spill_reg_stored_to.
1239 Handle case where secondary output reload uses a temporary, but
1240 actual store isn't found.
1241 When looking for a store of a value not loaded in order to call
1242 delete_output_reload, count_occurences should return 0 for no
1243 loads; but discount inherited input reloadill_reg_stored_to.
1244 Do checks for extra uses of REG. Changed all
1246 Use delete_address_reloads.
1247 (reload): Take return value of find_reloads into account.
1248 If a no-op set needs more than one reload, delete it.
1249 (reload_reg_free_before_p): RELOAD_FOR_INPUT
1250 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
1251 for the same operand.
1252 (clear_reload_reg_in_use): Check for other reloads that keep a
1254 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
1255 RELOAD_FOR_OPADDR_ADDR.
1256 Take into account when an address address reload is only needed
1257 for the address reload we are considering.
1258 (count_occurrences): Use rtx_equal_p for MEMs.
1259 (inc_for_reload): Return instruction that stores into RELOADREG.
1260 New argument two, IN, and rtx. Changed all callers.
1261 (calculate_needs_all_insns, reload_as_needed):
1262 Don't clear after_call for a CLOBBER.
1263 Keep track of how many hard registers need to be copied from
1264 after_call, and don't clear after_call before we have seen
1265 that much copies, or we see a different instruction.
1267 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
1269 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
1270 after reload has completed.
1272 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
1274 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
1275 a macro name and the next token with a single blank if that whitespace
1276 is in a macro buffer and the next token is not '('.
1278 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
1280 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
1282 (skip_if_group): Ditto.
1283 (skip_to_end_of_comment): Ditto.
1285 (discard_comments): Ditto.
1286 (change_newlines): Ditto.
1288 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
1290 * c-lex.c (yylex): Fix unaligned access of wchar_t.
1292 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
1294 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
1295 (TARGET_OPTIONS): Add --help documentation.
1297 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1299 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
1301 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
1303 * fixinc/* Moved in from ../contrib directory in preparation
1304 for integrating it into the normal build process. In particular,
1305 fixinc/Makefile.in must be config-ed into the build directory
1306 as fixinc/Makefile. Proposed patches to ./Makefile.in and
1307 ./configure.in will be "in the mail" momentarily.
1309 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
1311 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
1312 accidently walk into the free list. Comment how that can happen.
1313 (invalidate): Fix indentation.
1315 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1316 Jeffrey A Law (law@cygnus.com)
1318 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
1319 reload. Never perform rescans of the insn chain after reload.
1320 (propagate_block): Do not delete insn or create new autoinc addressing
1323 * jump.c (jump_optimize): Unconditionally use the code that was
1324 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
1325 * reload1.c (reload): When reloading is finished, delete all
1326 REG_DEAD and REG_UNUSED notes.
1327 (emit_reload_insns): Delete all code that was conditional on
1328 PRESERVE_DEATH_INFO_REGNO_P.
1329 (no_longer_dead_regs): Delete variable.
1330 (reload_cse_delete_death_notes): Delete function.
1331 (reload_cse_no_longer_dead): Delete function.
1332 (reload_cse_regs_1): Delete all code to handle deletion of death
1334 (reload_cse_noop_set_p): Likewise.
1335 (reload_cse_simplify_set): Likewise.
1336 (reload_cse_simplify_operands): Likewise.
1337 (reload_cse_move2add): Likewise.
1338 * reorg.c (used_spill_regs): Delete declaration.
1339 (max_label_num_after_reload): Delete declaration.
1340 (find_dead_or_set_registers): Don't assume that spill regs are
1341 dead at a CODE_LABEL.
1342 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
1344 * sched.c (sched_analyze_insn): Likewise.
1345 (update_flow_info): Likewise.
1346 * haifa-sched.c (sched_analyze_insn): Likewise.
1347 (update_flow_info): Likewise.
1348 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
1349 * toplev.c (max_label_num_after_reload): Delete variable.
1350 (rest_of_compilation): Don't set max_label_num_after_reload.
1351 Call life_analysis after reload_cse_regs if optimizing.
1352 * config/gmicro/gmicro.h: Delete comment referring to
1353 PRESERVE_DEATH_INFO_REGNO_P.
1354 * config/i386/i386.h: Likewise.
1355 * config/m88k/m88k.h: Likewise.
1356 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
1357 * config/sh/sh.h: Likewise.
1359 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
1361 * loop.c (strength_reduce): Restore marking bct_p as
1363 * rs6000.c (optimization_options): Change #ifdef HAIFA to
1364 HAVE_decrement_and_branch_on_count.
1365 (small_data_operand): Remove TARGET_ELF condition for marking
1366 parameters ATTRIBUTE_UNUSED.
1368 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
1370 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
1371 (SELECT_SECTION): Resync with svr4.h.
1373 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
1375 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
1378 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
1380 * c-pragma.c (handle_pragma_token): Test for null tree before
1381 dereferencing TREE_CODE.
1383 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1385 * config/c4x/c4x.c: Convert to use GEN_INT.
1386 (c4x_parallel_process): Rework to handle new repeat loop structure.
1388 * config/c4x/c4x.md: Convert to use GEN_INT.
1389 (rptb_end): Convert to use GE test. Replace uses with clobbers.
1390 (decrement_and_branch_on_count): Likewise.
1392 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
1393 loop.c has the desired functionality.
1394 (rc_reg_operand): New prototype.
1396 * config/c4x/t-c4x: Can now build all front ends.
1398 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
1400 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
1402 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
1404 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
1405 * config/t-rtems: Do not install assert.h -- use newlib's.
1407 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1409 * combine.c (combine_instructions): When finished, call init_recog.
1410 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
1412 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
1414 * toplev.c: If flag_syntax_only, don't open or write assembler file.
1416 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1418 * cppalloc.c (memory_full): Mark function prototype with
1421 * demangle.h (collect_exit): Likewise.
1423 * fix-header.c (v_fatal, fatal): Likewise.
1425 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
1428 * gcov.c (print_usage): Likewise.
1430 * genattr.c (fatal, fancy_abort): Likewise.
1432 * genattrtab.c (fatal, fancy_abort): Likewise.
1434 * gencodes.c (fatal, fancy_abort): Likewise.
1436 * genconfig.c (fatal, fancy_abort): Likewise.
1438 * genemit.c (fatal, fancy_abort): Likewise.
1440 * genextract.c (fatal, fancy_abort): Likewise.
1442 * genflags.c (fatal, fancy_abort): Likewise.
1444 * genopinit.c (fatal, fancy_abort): Likewise.
1446 * genoutput.c (fatal, fancy_abort): Likewise.
1448 * genpeep.c (fatal, fancy_abort): Likewise.
1450 * genrecog.c (fatal, fancy_abort): Likewise.
1452 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
1453 __sjpopnthrow, __throw): Likewise.
1455 * objc/objc-act.c (objc_fatal): Likewise.
1457 * protoize.c (usage, aux_info_corrupted,
1458 declare_source_confusing): Likewise.
1460 * rtl.c (dump_and_abort): Likewise.
1462 * rtl.h (sets_cc0_p): Likewise.
1464 * toplev.c (float_signal, pipe_closed): Likewise.
1466 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1468 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
1469 when generating the decision tree for the general case.
1471 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
1472 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
1474 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1476 * Makefile.in (sched.o): Depend on recog.h.
1478 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
1479 (unsigned) when comparing against one.
1480 (find_base_value): Likewise.
1481 (record_base_value): Cast variable `regno' to (unsigned) when
1482 comparing against one. Cast the result of REGNO() macro to
1483 (unsigned) when comparing against one.
1484 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
1486 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
1487 variable where an unsigned index is needed.
1489 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
1490 before comparing against one.
1492 * collect2.c: Add prototypes for functions `error', `fatal' and
1493 `fatal_perror'. Make these functions take variable arguments
1494 instead of faking it with a fixed number of args.
1495 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
1498 * combine.c (can_combine_p): Mark parameter `pred' with
1500 (find_split_point): Cast variable `src' to (unsigned
1501 HOST_WIDE_INT) when comparing against one.
1502 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
1503 (simplify_logical): Likewise.
1504 (force_to_mode): Cast result of INTVAL() macro to (unsigned
1505 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
1506 HOST_WIDE_INT) in shift.
1507 (simplify_and_const_int): Cast result of INTVAL() macro to
1508 `unsigned HOST_WIDE_INT' when comparing against one.
1509 (merge_outer_ops): Cast variable const0 to `unsigned
1510 HOST_WIDE_INT' when comparing against the result of
1511 GET_MODE_MASK() macro.
1512 (simplify_comparison): Likewise for variable `c0'. Cast variable
1513 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
1514 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
1515 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
1516 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
1517 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
1518 comparing against one.
1519 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
1521 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
1522 macro to `unsigned HOST_WIDE_INT' when comparing against one.
1523 (output_block_move): Cast `sizeof' expression to (int) when
1524 comparing against one.
1525 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
1527 (save_restore_insns): Cast `base_offset' to `long' to match format
1528 specifier in fprintf.
1530 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
1531 to `enum machine_mode'.
1533 * flow.c (life_analysis_1): Remove unused variable `insn'.
1535 * gcc.c (translate_options): Move variables `j' and `k' into the
1536 scope in which they are used. Change their types to `size_t'.
1537 (set_spec): Cast the argument of ctype macro to `unsigned char'.
1538 (read_specs): Likewise.
1539 (process_command): Cast `sizeof' to (int) when comparing against one.
1540 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
1541 (handle_braces): Cast both sides of `==' expression to `long' to
1542 ensure sign matching.
1543 (main): Cast variable `i' to `int' when comparing against one.
1545 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
1546 int to size_t. Cast variable `i' to size_t when comparing against
1549 * genattrtab.c (convert_set_attr_alternative): Remove unused
1550 parameter `insn_code'. All callers changed.
1551 (convert_set_attr): Likewise.
1553 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
1554 size_t when comparing against one. Likewise for variable `len'.
1556 * global.c (global_alloc): Cast variable `max_regno' to size_t
1557 when comparing against one. Likewise for variable `max_allocno'.
1559 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
1561 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
1562 `set' with ATTRIBUTE_UNUSED.
1563 (find_free_reg): Cast `sizeof' expression to (int) when comparing
1566 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
1567 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
1568 (get_condition): Cast variable `const_val' to `unsigned
1569 HOST_WIDE_INT' when comparing against one. Cast unsigned
1570 expression to HOST_WIDE_INT when comparing against one.
1571 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
1572 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
1573 `unsigned' when comparing against one.
1575 * protoize.c (is_id_char): Change type of parameter `ch' to
1577 (munge_compile_params): Cast argument of ctype macro to (const
1579 (process_aux_info_file): Cast variable `aux_info_size' to int when
1580 comparing against one.
1581 (forward_to_next_token_char): Cast argument of ctype macro to
1582 `const unsigned char'.
1583 (edit_formals_lists): Likewise.
1584 (find_rightmost_formals_list): Likewise.
1585 (add_local_decl): Likewise.
1586 (add_global_decls): Likewise.
1587 (edit_fn_definition): Likewise.
1588 (do_cleaning): Likewise.
1589 (scan_for_missed_items): Likewise.
1590 (edit_file): Cast variable `orig_size' to (int) when comparing
1592 (main): Cast argument of ctype macro to `const unsigned char'.
1594 * recog.c (const_int_operand): Mark parameter `mode' with
1597 * regclass.c (record_reg_classes): Change type of variable `c' to
1598 `unsigned char'. Cast `char' array index to `unsigned char'.
1600 * reload.c (push_secondary_reload): Cast argument to
1601 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
1603 * reload1.c (calculate_needs): Cast `char' array index to
1605 (set_label_offsets): Change type of variable `i' to unsigned int.
1606 Cast result of XVECLEN() macro to unsigned when comparing against
1608 (mark_not_eliminable): Change type of variable `i' to unsigned.
1609 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
1610 when comparing against one.
1611 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
1612 comparing against one.
1613 (choose_reload_regs): Hide unused label `fail'.
1614 (reload_cse_simplify_operands): Cast `char' array index to
1616 (reload_combine_note_store): Mark parameter `set' with
1617 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
1619 (reload_cse_move2add): Remove unused variable `src2'.
1621 * sched.c: Include recog.h.
1622 (sched_note_set): Remove unused parameter `b'. All callers
1624 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
1625 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
1626 when comparing against one.
1628 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
1629 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
1630 comparing against one.
1632 * unroll.c (precondition_loop_p): Remove unused parameter
1633 `loop_end'. All callers changed.
1635 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1637 * reload1.c (maybe_fix_stack_asms): New static function.
1640 * reload.h (compute_use_by_pseudos): Declare.
1642 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
1643 (something_needs_reloads): Delete variable.
1644 (finish_spills): New function.
1645 (compute_use_by_pseudos): New function.
1647 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
1648 Use the reload_insn_chain instead of walking the rtl directly.
1650 (reload): Allocate and free spilled_pseudos.
1651 Ensure that all calls of spill_hard_reg are followed by a call to
1653 Use the insns_need_reload list instead of something_needs_reloads
1654 to find out if reload_as_needed must be called.
1655 Clear unused_insn_chains at the end.
1657 (calculate_needs_all_insns): Lose FIRST parameter. All callers
1659 Delete code to keep track of current basic block.
1660 Walk reload_insn_chain instead of the rtl structure. Build the
1661 insns_need_reload chain.
1662 Remember which insns need reloading/elimination by setting the
1663 appropriate fields in struct insn_chain, not by putting modes on the
1666 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
1667 arg INSN. All callers changed.
1668 Delete declaration of struct needs.
1669 Don't set something_needs_reloads.
1670 Record insn needs in the CHAIN argument.
1672 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
1674 (reload_as_needed): Lose FIRST arg. All callers changed.
1675 Walk the reload_insn_chain instead of the rtx structure.
1676 Delete code to keep track of current basic block.
1677 Rename one of the NEXT variables to OLD_NEXT.
1679 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
1681 (choose_reload_regs): Likewise.
1683 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
1686 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
1687 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
1688 (hard_regs_live, hard_regs_need_restore): Delete variables.
1689 (n_regs_saved): Now static.
1690 (referenced_regs, this_insn_sets): New variables.
1692 (setup_save_areas): Restructure the code a bit.
1694 (restore_referenced_regs): Delete function.
1695 (mark_referenced_regs): New function, similar to the old
1696 restore_referenced_regs, but mark registers in referenced_regs.
1698 (clear_reg_live): Delete function.
1699 (mark_set_regs): Renamed from set_reg_live. All callers changed.
1700 Only mark registers in this_insn_sets.
1702 (save_call_clobbered_regs): Rework this function to walk the
1703 reload_insn_chain instead of using the list of instructions directly.
1704 Delete code to keep track of register lives, compute live regs on the
1705 fly from information in the chain.
1706 Instead of calling restore_referenced_regs, use mark_referenced_regs,
1707 then walk the set it computes and call insert_restore as appropriate.
1709 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
1711 Restructure the code a bit. Test hard_regs_saved instead of
1712 hard_regs_need_restore.
1713 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
1714 args. All callers changed.
1715 Restructure the code a bit. Use TO_SAVE to determine which regs to
1716 save instead of more complicated test.
1717 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
1719 Create a new insn_chain structure for the new insn and place it
1722 * rtl.texi: Update documentation to reflect that reload no longer
1723 puts modes on the insns.
1725 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
1727 * function.c (purge_addressof_1): Force the first argument of a
1728 CALL insn to memory.
1730 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
1732 * rtl.h: Delete duplicate prototypes. Add some missing
1734 * rtlanal.c: (for_each_rtx): Formatting tweak.
1736 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1738 * real.c (emdnorm and etoasc): Disable round to even for c4x target
1739 to be compatible with TI compiler.
1741 * Makefile.in (USER_H): Add va-c4x.h to definition.
1743 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
1745 * function.c (purge_addressof_1): Fix typo in inequality: do
1746 bitfield optimization for equal mode sizes.
1747 * expmed.c (store_bit_field): Don't take subregs of subregs in
1748 the movstrict case. Tidy a potential problem in the multi-word case.
1749 (extract_bit_field): Likewise.
1751 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1753 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
1755 Compute max_uid_for_flow by calling get_max_uid after the scan.
1756 (find_basic_blocks_1): Don't emit NOPs here.
1758 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
1760 * alias.c (base_alias_check): Accept new args for the modes of the
1761 two references. Use them to determine if an AND can overlap. Update
1763 (memrefs_conflict_p): Assume sizes are aligned, and uses them
1764 to determine if an AND can overlap.
1766 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
1768 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
1769 check. Add comment to document problems with TARGET_SUN_FPA version
1771 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
1773 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1775 * Makefile.in (gencheck.o): Depend on gansidecl.h.
1777 * c-common.c (print_char_table): Add missing initializers.
1778 (scan_char_table): Likewise.
1779 (time_char_table): Likewise.
1781 * c-decl.c (c_decode_option): Mark parameter `argc' with
1783 (declare_parm_level): Mark parameter `definition_flag' with
1786 * c-lex.c (readescape): Use `(unsigned)1' in shift.
1787 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
1790 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
1792 (emit_call_1): Mark parameters `fndecl' and `funtype' with
1794 (expand_call): Cast result of MIN() to (unsigned int) when
1795 comparing against an unsigned value.
1797 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
1799 (make_definition): Remove unused parameter `op'. All callers
1801 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
1802 comparing against the result of pointer arithmetic.
1804 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
1805 when comparing against one.
1807 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
1808 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
1810 (output_die): Move variable `i' into the scope in which it is
1811 used. Change its type to `unsigned'.
1812 (output_die): Cast the result of `strlen' to (int) when passing it
1813 to ASM_OUTPUT_ASCII().
1814 (output_pubnames): Likewise.
1815 (output_line_info): Likewise.
1817 * emit-rtl.c (global_rtl): Add missing initializers.
1819 * explow.c (promote_mode): Mark parameter `for_call' with
1822 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
1823 `unsigned HOST_WIDE_INT' when comparing against one.
1824 (synth_mult): Change type of variable `cost' to int.
1825 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
1827 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
1828 when comparing against one.
1829 (get_inner_reference): Change variable `alignment' to unsigned.
1830 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
1831 int) when comparing against one.
1832 (expand_builtin_setjmp): Change type of variable `i' to size_t.
1834 * fold-const.c (div_and_round_double): Cast BASE to
1835 (HOST_WIDE_INT) when comparing against one.
1837 * gencheck.c: Include gansidecl.h.
1838 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
1840 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
1841 `tcode' with ATTRIBUTE_UNUSED.
1843 * real.c (edivm): Cast constant value to (unsigned long) in
1844 expression compared against an unsigned value.
1846 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
1847 comparing against one.
1848 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
1849 when comparing against one.
1851 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
1852 (unsigned int) when comparing against one. Likewise for
1854 (smallest_mode_for_size): Likewise.
1855 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
1856 (restore_storage_status): Likewise.
1858 * toplev.c (debug_args): Add missing initializer.
1859 (f_options): Spelling correction. Add missing initializers.
1860 (documented_lang_options): Likewise.
1861 (debug_end_source_file): Mark parameter `lineno' with
1864 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
1865 `decl' and `type' with ATTRIBUTE_UNUSED.
1867 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
1868 when comparing against one.
1869 (assemble_variable): Mark parameter `top_level' with
1871 (assemble_external_libcall): Mark parameter `fun' with
1873 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
1876 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
1878 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
1879 Replace use of r5 with use of r19.
1881 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
1883 * config/v850/v850.c (compute_register_save_size): Allow for the
1884 fact that helper functions save all registers, not just those used
1887 Replace constant 31 with macro LINK_POINTER_REGNUM.
1889 * config/v850/v850.md: Use 'indirect_operand' rather than
1890 'memory_operand' for bit test/set/clear patterns.
1892 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
1894 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
1895 * varasm.c (assemble_start_function et al): Don't call
1896 ASM_GLOBALIZE_LABEL for weak symbols.
1898 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
1900 * cse.c (equiv_constant): Check for NULL return from
1901 gen_lowpart_if_possible().
1903 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
1905 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
1907 * collect2.c (main): Pass -EL/-EB through to the compiler.
1909 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1911 * expr.c (push_block): Handle targets where the stack grows
1912 to higher addresses, but args grow to lower addresses and
1913 ACCUMULATE_OUTGOING_ARGS is not defined.
1915 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
1917 * config/v850/v850.c (print_operand): Extend meaning
1918 of 'c' operands to support .vtinherit.
1920 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1922 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
1923 Added ATTRIBUTE_UNUSED to unused function arguments.
1924 (rc_reg_operand): New predicate.
1925 (c4x_rptb_insert): New function.
1926 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
1927 (c4x_optimization_options): New function.
1929 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
1930 (decrement_and_branch_on_count): New pattern.
1931 (rptb_top): Modified pattern to work with BCT optimization.
1933 * config/c4x/c4x.h (RC_REG): New register class.
1934 (rc_reg_operand): Define prototype.
1935 (IS_RC_REG): New macro.
1936 (IS_RC_OR_PSEUDO_REG): New macro.
1937 (IS_RC_OR_PSEUDO_REGNO): New macro.
1938 (OPTIMIZATION_OPTIONS): Define.
1940 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
1942 * collect2.c (extract_init_priority): No priority is 65535.
1944 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1946 * Makefile.in (build_tooldir): new variable, same as old
1947 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
1948 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
1949 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
1951 * configure.in (gxx_include_dir): set default based on unlibsubdir
1952 * Makefile.in (tooldir): ditto
1953 (cccp.o, cpplib.o): use unlibsubdir implicitly through
1954 gxx_include_dir, includedir and tooldir
1955 (protoize.o, unprotoize.o): ditto
1957 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
1959 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
1961 * config/arm/thumb.c (thumb_override_options): Add warning about
1962 PIC code not being supported just yet.
1964 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
1966 * flow.c: Update comment.
1967 (notice_stack_pointer_modification): New static function.
1968 (record_volatile_insns): Use it.
1969 (mark_regs_live_at_end): Mark the stack pointer as alive
1970 at the end of the function if current_function_sp_is_unchanging
1972 (life_analysis_1): Set current_function_sp_is_unchanging.
1973 * function.c: Define it.
1974 (init_function_start): Initialize it.
1975 * output.h: Declare it.
1976 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
1977 the stack pointer as alive at the end of the function if
1978 current_function_sp_is_unchanging is set.
1979 * i386.c (ix86_epilogue): Optimize the restoring
1980 of the stack pointer.
1982 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
1984 * version.c: Bump for snapshot.
1986 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
1988 * c-pragma.c (handle_pragma_token): If passed a token instead
1989 of a tree, use that as the pack value.
1991 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
1993 * flow.c (find_basic_blocks_1): Fix prototype.
1995 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
1997 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
1998 (struct tree_decl): New fields no_check_memory_usage.
1999 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
2000 (init_attributes): Register it as a new attribute.
2001 (decl_attributes): Set flags on functions given that attribute.
2002 * c-decl.c (duplicate_decls): Merge new attribute.
2003 * expr.h (current_function_check_memory_usage): Declare new var.
2004 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
2005 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
2006 current_function_check_memory_usage.
2007 * function.h: Add field to struct function.
2008 * function.c (current_function_check_memory_usage): Define it.
2009 (push_function_context_to, pop_function_context_from): Save and
2011 (expand_function_start): Set it, based on global flag and function
2014 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
2015 check non-automatic variables, to permit detection of writes to
2016 read-only locations in embedded systems without memory management.
2017 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
2018 when emitting chkr_set_right_libfunc call, even if the argument is
2019 BLKmode or variable-sized; don't abort.
2021 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
2022 symbols in Pmode, not VOIDmode.
2024 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2026 * cppexp.c: When forcing unsigned comparisons, cast both sides
2029 * cpphash.h: Move static declaration of hashtab[]...
2030 * cpphash.c: ...here.
2032 * cpplib.c: Cast difference of two pointers to size_t before
2033 comparing it to size_t. Cast signed to unsigned
2034 before comparing to size_t. (FIXME: struct argdata should use
2035 unsigned buffer sizes.)
2036 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
2037 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
2038 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
2039 size_t before comparison.
2041 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
2043 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
2044 (find_basic_blocks_1): Similarly.
2045 * output.h (find_basic_blocks): Fix prototype.
2046 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
2047 find_basic_blocks anymore.
2049 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
2051 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
2052 (sbitmap_free, sbitmap_vector_free): New macros.
2053 * output.h (rtl_dump_file): Declare.
2055 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
2057 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
2059 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2061 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
2063 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
2064 (divide): Remove unused variable `tmp'.
2065 (si_to_float): Cast numeric constant to (SItype) before comparing
2068 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
2070 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
2071 * gcc.c (add_preprocessor_option): Correct typo when allocating
2072 memory, sizeof() argument had one too many `*'.
2073 (add_assembler_option): Likewise.
2074 (add_linker_option): Likewise.
2075 * gcov.c (output_data): Likewise.
2076 * local-alloc.c (memref_used_between_p): Likewise.
2077 (update_equiv_regs): Likewise.
2078 * loop.c (strength_reduce): Likewise.
2079 * reg-stack.c (record_asm_reg_life): Likewise.
2080 (subst_asm_stack_reg): Likewise.
2081 * reorg.c (dbr_schedule): Likewise.
2083 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2085 * flow.c (life_analysis_1): Break out some functions.
2086 (find_basic_blocks_1): Likewise. Also move some variables out and
2088 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
2089 new static var nonlocal_label_list with it.
2090 (active_eh_region, nested_eh_region, label_value_list,
2091 nonlocal_label_list): New static variables.
2092 (make_edges, delete_unreachable_blocks, delete_block): New static
2093 functions, broken out of find_basic_blocks_1.
2094 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
2095 noop_move_p): New static functions, broken out of life_analysis_1.
2097 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
2099 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
2100 Take extra care for op0 now possibly being a subreg.
2101 (extract_bit_field): Likewise.
2102 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
2103 the reg to memory if there is no equal sized integral mode.
2104 * stor-layout.c (int_mode_for_mode): New function.
2105 * machmode.h: Prototype it.
2107 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
2109 * global.c (build_insn_chain): Verify no real insns exist past the
2110 end of the last basic block, then exit the loop.
2112 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2114 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
2116 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
2118 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
2120 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
2122 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
2124 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
2126 * flow.c (find_basic_blocks): Correctly determine when a call
2127 is within an exception region.
2129 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
2131 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
2133 * cpplib.h: Protect from multiple inclusions.
2134 * cpplib.c: Fix minor formatting problems.
2136 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
2138 * jump.c (jump_optimize): Revert accidental patch.
2140 * Makefile.in (cpplib.o): Use unlibsubdir.
2142 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
2144 * loop.c (get_condition): Allow combine when either compare is
2147 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
2149 * version.c: Bump for snapshot.
2151 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
2153 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
2154 (init_lex): Initialize ridpointers[RID_BYREF].
2155 * c-lex.h (enum rid): Add RID_BYREF.
2156 * c-parse.gperf: Add RID_BYREF as a type qualifier.
2157 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
2158 (encode_type_qualifiers): Similarly
2159 * c-gperf.h: Rebuilt.
2161 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
2163 * c-common.c (type_for_mode): Only return TItype nodes when
2164 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2165 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
2166 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2167 (init_decl_processing): Only create TItype nodes when
2168 HOST_BITS_PER_WIDE_INT is >= 64 bits.
2169 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
2170 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
2172 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2174 * stmt.c (n_occurrences): New static function.
2175 (expand_asm_operands): Verify that all constrains match in the
2176 number of alternatives.
2177 Verify that '+' or '=' are at the beginning of an output constraint.
2178 Don't allow '&' for input operands.
2179 Verify that '%' isn't written for the last operand.
2180 * reload.c (find_reloads): Abort if an asm is found with invalid
2181 constraints; all possible problems ought to be checked for earlier.
2183 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2185 * flags.h (flag_branch_on_count_reg): Always declare
2186 * toplev.c (flag_branch_on_count_reg): Likewise.
2187 * toplev.c: Fix typos.
2189 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
2192 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
2194 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
2196 (find_basic_blocks_1): Add a nop to the end of a basic block when
2197 a trailing call insn does not have abnormal control flow.
2198 * gcse.c (pre_transpout): New variable.
2199 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
2200 (compute_pre_transpout): Calculate it.
2201 (compute_pre_ppinout): Use it to eliminate impossible placements
2202 due to abnormal control flow through calls.
2203 (compute_pre_data): Call compute_pre_transpout.
2205 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2207 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
2209 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
2211 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
2212 and matching define_insns): Tack on a `use' of the table label, so
2213 flow analysis will recognize a tablejump.
2215 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
2217 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
2218 always end basic blocks for abnormal edge reasons.
2220 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
2222 * config/i386/i386.h: Remove definition of
2223 HANDLE_PRAGMA_PACK_PUSH_POP.
2225 * config/i386/go32.h: Add definition of
2226 HANDLE_PRAGMA_PACK_PUSH_POP.
2228 * config/i386/win32.h: Add definition of
2229 HANDLE_PRAGMA_PACK_PUSH_POP.
2231 * config/i386/cygwin32.h: Add definition of
2232 HANDLE_PRAGMA_PACK_PUSH_POP.
2234 * c-pragma.c (insert_pack_attributes): Do not insert
2235 attributes unless #pragma pack(push,<n>) is in effect.
2237 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
2239 * expr.c (emit_group_store): Handle a PARALLEL destination.
2241 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
2243 * gcse.c (pre_insert_insn): When a call ends a bb, insert
2244 the new insns before the argument regs are loaded.
2246 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2248 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
2249 (c-parse.gperf): Update comments describing invocation flags.
2250 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
2252 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
2254 * reload1.c (reload): Call free before clobbering the memory
2255 locations or constants pointers.
2257 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2259 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
2260 for efficiency by checking whether we need to modify the current
2261 stack permission at all.
2262 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
2263 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
2264 __enable_execute_stack libcall here too if
2265 TRANSFER_FROM_TRAMPOLINE is defined.
2266 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
2269 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
2271 * Makefile.in (DRIVER_DEFINES): Remove last change.
2273 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2275 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
2276 insns we're going to copy.
2277 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
2279 * loop.c (count_one_set): Add prototype.
2281 * caller-save.c (restore_referenced_regs): Lose mode argument.
2282 (insert_save): Lose mode argument.
2283 (insert_restore): Lose mode argument.
2284 (insert_one_insn): Lose mode argument.
2285 (save_call_clobbered_regs): Lose mode argument.
2286 (setup_save_areas): Take no argument and return void. All callers
2288 Don't verify validity of memory addresses.
2289 * reload.h (setup_save_ares): Adjust prototype.
2290 (save_call_clobbered_regs): Likewise.
2291 * reload1.c (delete_caller_save_insns): New function.
2292 (caller_save_spill_class): Delete variable.
2293 (caller_save_group_size): Delete variable.
2294 (reload): Call setup_save_areas and save_call_clobbered_regs
2295 in the main loop, before calling calculate_needs_all_insns.
2296 Don't call save_call_clobbered_regs after the loop.
2297 Call delete_caller_save_insns at the end of an iteration if
2299 Delete code to manage caller_save_spill_class.
2300 Emit the final note before setting reload_first_uid.
2301 Simplify test that determines whether reload_as_needed gets run.
2302 (calculate_needs): Delete code to manage caller_save_spill_class.
2304 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
2306 * collect2.c (main): Initialize ld_file_name.
2308 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
2310 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
2311 check for flag_function_sections.
2313 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2315 * cse.c (insert_regs): Fix bug in Sep 24 change.
2317 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2319 * flags.h (flag_dump_unnumbered): Declare.
2320 * toplev.c (flag_dump_unnumbered): Don't declare.
2321 * print-rtl.c (flags.h): Include.
2322 (print_rtl_single): Add return value.
2323 * rtl.h (print_rtl_single): Update declaration.
2324 * flow.c (flag_dump_unnumbered): Don't declare.
2325 (print_rtl_with_bb): Use return value of print_rtl_single.
2327 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2329 * loop.c (count_one_set): New static function, broken out of
2331 (count_loop_regs_set): Call it.
2332 * global.c (mark_reg_store): Handle clobbers here by not calling
2334 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
2335 is in fact a clobber.
2336 * integrate.c (process_reg_param): New function, broken out of
2337 expand_inline_function.
2338 (expand_inline_function): Call it.
2341 * i386.md (addsidi3_1): Delete unused variable temp.
2342 (addsidi3_2): Likewise.
2343 (clstrstrsi): Delete unused variable addr1.
2345 * rtl.h: Don't declare any functions also declared in recog.h.
2347 * Makefile.in (stupid.o): Update dependencies.
2348 (global.o): Likewise.
2350 * global.c: Include reload.h
2351 (reg_becomes_live): New function.
2352 (reg_dies): New function.
2353 (build_insn_chain): New function.
2354 (global_alloc): Call build_insn_chain before calling reload.
2356 * reload.h (struct needs): New structure definition.
2357 (struct insn_chain): Likewise.
2358 (reload_insn_chain): Declare variable.
2359 (new_insn_chain): Declare function.
2362 * reload1.c (reload_startobj): New variable.
2363 (reload_insn_chain): New variable.
2364 (unused_insn_chains): New variable.
2365 (new_insn_chain): New function.
2366 (init_reload): Initialize reload_startobj, not reload_firstobj.
2367 (reload): Initialize reload_firstobj.
2368 Before returning, free everything on the reload_obstack.
2370 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
2371 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
2372 current_chain): New variables.
2373 (reg_where_born): Delete variable.
2374 (REG_WHERE_BORN): New macro.
2375 (find_clobbered_regs): New function.
2376 (stupid_life_analysis): Don't allocate/free reg_where_born.
2377 Allocate and free reg_where_born_exact, reg_where_born_clobber,
2378 reg_where_dead_chain.
2379 Use REG_WHERE_BORN instead of reg_where_born.
2380 While processing the insns, build the reload_insn_chain with
2381 information about register lifetimes.
2382 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
2383 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
2385 Compute and information about birth and death of pseudo registers in
2386 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
2387 Delete code to set elements of reg_where_born.
2389 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
2391 * tree.def (GOTO_EXPR): Modified documentation.
2392 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
2395 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
2397 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
2398 loop_final_value, loop_comparison_code): No longer static.
2399 (unroll_loop): Delete loop_start_value update.
2400 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
2401 loop_final_value, loop_comparison_code): Extern.
2402 (loop_start_value): Delete extern.
2403 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
2404 loop_comparison_value, loop_comparison_code): Delete.
2405 (loop_optimize): Remove initialization for deleted variables.
2406 (strength_reduce): Delete analyze_loop_iterations call. Only call
2407 insert_bct if flag_branch_count_on_reg set.
2408 (analyze_loop_iterations): Delete.
2409 (insert_bct): Remove iteration count calculation. Move checks for
2410 viable BCT optimization to here. Obtain iteration count from
2411 loop_iterations and correct for unrolling. Check for enough
2412 iteration to be beneficial. Comment out runtime iteration count
2414 (insert_bct): Print iteration count in dump file. Remove
2415 loop_var_mode and use word_mode directly.
2417 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
2418 * rs6000.c (rs6000_override_options): Use it.
2419 (optimization_options): Enable use of flag_branch_on_count_reg.
2420 * rs6000.md (define_function_unit): Describe 604e.
2422 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2424 * loop.c (move_movables): Corrected threshold calculation for
2425 moved_once registers.
2427 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2429 * loop.c (combine_givs_p): Fix test for identical givs.
2431 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
2433 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
2434 call abort if the function is already defined.
2436 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
2438 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
2439 truncation is not a no-op.
2441 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
2443 * version.c: Bump for snapshot.
2445 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
2447 * version.c: Bump for snapshot.
2449 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
2451 * expmed.c (expand_divmod): Don't widen for computing remainder
2452 if we seem to have a divmod pattern for needed mode.
2454 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2456 * cpplib.c (macroexpand): Correct off-by-one error in handling
2459 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
2461 * combine.c (expand_field_assignment): Don't do bitwise operations
2462 on MODE_FLOAT; pun to MODE_INT if possible.
2464 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
2465 scott snyder <snyder@d0sgif.fnal.gov>
2467 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
2468 linker. Recognize mangled names in quotes.
2470 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2472 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
2473 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
2474 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
2475 (lshrsi3_extend, lshrsi3_extend2): Ditto.
2477 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2479 * function.c (purge_addressof_1): If trying to take a sub-word
2480 integral piece of a floating point mode, put it on the stack.
2482 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
2484 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
2486 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
2488 * PROJECTS: Remove template friends.
2490 * collect2.c (sort_ids): Remove unused variable.
2492 * tm.texi (MATH_LIBRARY): Document.
2493 (NEED_MATH_LIBRARY): Remove.
2495 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
2496 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
2498 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
2500 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
2501 last_end to 0x7fffffff.
2503 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2505 * function.c (purge_addressof_1): Do not perform endianness
2506 corrections on bitpos, who we call will do it for us.
2508 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
2510 * h8300.c (WORD_REG_USED): Fix typo.
2511 (initial_offset): Use WORD_REG_USED.
2513 * h8300.c (handle_pragma): Fix typo.
2515 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2517 * caller-save.c (insert_save_restore): Break this function up
2518 into new functions insert_restore, insert_save and insert_one_insn.
2519 All callers changed.
2520 (insert_restore): New function, mostly broken out of
2521 insert_save_restore.
2522 (insert_save): Likewise.
2523 (insert_one_insn): Likewise.
2524 (restore_referenced_regs): New argument BLOCK. All callers changed.
2525 (save_call_clobbered_regs): Don't keep track of basic block boundaries
2526 in this function, do it in insert_one_insn instead.
2528 * reload1.c (reload): Break out some more pieces into separate
2530 (dump_needs): New function, broken out of reload.
2531 (set_initial_elim_offsets): Likewise.
2532 (init_elim_table): Likewise.
2533 (update_eliminables): Likewise.
2535 * global.c (global_alloc): Delete code to manage the scratch_list.
2536 * local-alloc.c (qty_scratch_rtx): Delete.
2537 (scratch_block): Delete.
2538 (scratch_list): Delete.
2539 (scratch_list_length): Delete.
2540 (scratch_index): Delete.
2541 (alloc_qty_for_scratch): Delete.
2542 (local-alloc): Update initialization of max_qty.
2543 Delete code to manage the scratch list.
2544 Delete code to allocate/initialize qty_scratch_rtx.
2545 (block_alloc): Don't allocate quantities for scratches.
2546 Delete code to manage the scratch list.
2547 * regs.h (scratch_list): Delete declaration.
2548 (scratch_block): Delete declaration.
2549 (scratch_list_length): Delete declaration.
2550 * reload1.c (reload): Delete code to manage the scratch list.
2551 (spill_hard_reg): Likewise.
2552 (mark_scratch_live): Delete.
2554 * recog.c (alter_subreg): Delete declaration.
2556 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2558 * Makefile.in (cccp.o): Fix typo in last patch.
2560 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2562 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
2563 * config/sh/lib1funcs.asm (___set_fpscr): Add.
2565 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
2567 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
2568 NULL_RTX as an argument.
2570 * Makefile.in (unlibsubdir): Define.
2571 (DRIVER_DEFINES): Use unlibsubdir.
2572 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
2573 (stmp-fixinc): Similarly.
2575 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
2577 * regmove.c (regmove_optimize): Add variable old_max_uid.
2578 At the end of the function, update basic_block_end.
2580 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2582 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
2583 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
2586 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
2588 * config/arm/arm.c: Improve interworking support.
2590 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2592 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
2593 copied from reload_out[r] .
2595 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
2597 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
2598 with more than three size ranges.
2600 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
2602 * rtl.c (mode_name): Add a null string at the end of the array.
2603 (mode_wider_mode): Change type to unsigned char.
2604 (mode_mask_array): New variable.
2605 (init_rtl): Update for mode_wider_mode type change.
2607 * rtl.h (mode_wider_mode): Change type to unsigned char.
2608 (mode_mask_array): Declare.
2609 (GET_MODE_MASK): Use mode_mask_array.
2611 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
2613 * calls.c (expand_call) : Encapsulate code into
2614 copy_blkmode_from_reg.
2615 * expr.c (copy_blkmode_from_reg): New function.
2616 * expr.h (copy_blkmode_from_reg): New function.
2617 * integrate.c (function_cannot_inline_p): We can inline
2619 (expand_inline_function): Use copy_blkmode_from_reg
2620 if needed. Avoid creating BLKmode REGs.
2621 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
2624 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
2626 * config/v850/v850.c: Add function prototypes.
2627 Add support for v850 special data areas.
2629 * config/v850/v850.h: Add support for v850 special data areas.
2631 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
2632 HANDLE_PRAGMA_PACK_PUSH_POP.
2633 (push_alignment): New function: Cache an alignment requested
2634 by a #pragma pack(push,<n>).
2635 (pop_alignment): New function: Pop an alignment from the
2637 (insert_pack_attributes): New function: Generate __packed__
2638 and __aligned__ attributes for new decls whilst a #pragma pack
2640 (add_weak): New function: Cache a #pragma weak directive.
2641 (handle_pragma_token): Document calling conventions. Add
2642 support for #pragma pack(push,<n>) and #pragma pack (pop).
2644 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
2645 are defined enable HANDLE_PRAGMA_PACK.
2646 Move 'struct weak_syms' here (from varasm.c).
2647 Add pragma states for push and pop pragmas.
2649 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
2652 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
2653 HANDLE_GENERIC_PRAGMAS.
2655 * varasm.c: Move definition of 'struct weak_syms' into
2657 (handle_pragma_weak): Deleted.
2659 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2661 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
2663 * c-decl.c (start_function): Add invocation of
2664 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
2666 * tm.texi: Remove description of non-existant macro
2667 SET_DEFAULT_SECTION_NAME.
2669 (HANDLE_SYSV_PRAGMA): Document.
2670 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
2672 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
2674 * config.sub: Recognize i[34567]86-pc-udk as new target.
2675 * configure.in: Likewise.
2676 * config/i386/t-udk: New file.
2677 * config/i386/udk.h: New file.
2679 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
2681 * reorg.c (check_annul_list_true_false): Remove unused variables.
2682 (steal_delay_list_from_target): Add missing "used_annul" variable.
2683 (try_merge_delay_insns): Close out half formed comment.
2685 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2687 * cpplib.c (macroexpand): If arg->raw_before or
2688 arg->raw_after, remove any no-reexpansion escape at the
2689 beginning of the pasted token. Correct handling of whitespace
2690 markers and no-reexpand markers at the end if arg->raw_after.
2692 * toplev.c (documented_lang_options): Recognize -include,
2693 -imacros, -iwithprefix, -iwithprefixbefore.
2694 * cpplib.c (cpp_start_read): Process -imacros and -include
2695 switches at the same time and in command-line order, after
2696 initializing the dependency-output code. Emit properly nested
2697 #line directives for them. Emit a #line for the main file
2698 before processing these switches, and don't do it again
2701 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
2703 * function.c (purge_addressof_1): Use bitfield manipulation
2704 routines to handle mem mode < reg mode.
2706 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
2708 * reorg.c (try_merge_delay_insns): Account for resources referenced
2709 in each instruction in INSN's delay list before trying to eliminate
2710 useless instructions. Similarly when looking at a trial insn's delay
2713 * reorg.c (check_annul_list_true_false): New function.
2714 (steal_delay_list_from_{target,fallthrough}): Call it and also
2715 refine tests for when we may annul if already filled a slot.
2716 (fill_slots_from_thread): Likewise.
2717 (delete_from_delay_slot): Return newly-created thread.
2718 (try_merge_delay_isns): Use its new return value.
2720 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
2722 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
2723 used to compute a giv or as some other non-counting use.
2725 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2727 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
2728 * local-alloc.c (find_free_reg): Use it.
2729 * global.c (find_reg): Likewise.
2730 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
2732 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
2733 * caller-save.c (init_caller_save): Use it.
2734 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
2736 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
2738 * configure.in: Add --enable-cpplib option which uses cpplib
2739 for cpp, but doesn't link cpplib into cc1. Make help text
2740 capitalization consistent.
2741 * configure: Rebuilt.
2743 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
2745 * function.c (gen_mem_addressof): If the address REG is
2746 REG_USERVAR_P make the new REG be so also.
2747 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
2748 in an attempt to clarify slightly.
2750 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
2752 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
2753 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
2755 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
2757 * toplev.c: Fix last patch.
2759 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
2761 * loop.c (get_condition): Fix typo in May 9 change.
2763 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2765 * invoke.texi (-fexceptions): Merge 2 different descriptions.
2767 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2769 * toplev.c (documented_lang_options): Spelling corrections.
2771 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2773 * configure.in: new flags --with-ld and --with-as, equivalent
2774 to setting LD and AS environment variables. Test whether
2775 specified arguments are GNU commands, and report them with
2776 checking messages. Use the specified AS for configure
2779 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
2781 * gcc.c (find_a_file): when looking for `as' and `ld', return
2782 the DEFAULT program if it exists
2783 * collect2.c (main): use DEFAULT_LINKER if it exists
2785 * gcc.c (find_a_file): the test for existence of a full
2786 pathname was reversed
2788 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
2790 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
2791 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
2793 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
2795 * tree.h (TYPE_BINFO): Document.
2797 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
2799 * i386-coff.h (dbxcoff.h): Added.
2801 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
2803 * toplev.c: fix bad patch around flag_data_sections.
2805 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
2807 * reload1.c (reload): Use reload_address_index_reg_class and
2808 reload_address_base_reg_class when setting
2809 caller_save_spill_class. (Patch generated by Jim Wilson:
2812 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
2814 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
2815 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
2816 * expr.c (store_field): Add alias_set parameter. Set the
2817 MEM_ALIAS_SET accordingly, if the target is a MEM.
2818 (expand_assignment): Use it.
2819 (store_constructor_field): Pass 0.
2820 (expand_expr): Likewise.
2822 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
2824 * flags.h: Add flag_data_sections.
2825 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
2826 (compile_file): Error if flag_data_sections not supported.
2827 * varasm.c (assemble_variable): Handle flag_data_sections.
2828 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
2829 * config/mips/elf.h: Likewise.
2830 * config/mips/elf64.h: Likewise.
2831 * invoke.texi: Describe -fdata-sections.
2833 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
2835 * invoke.texi (-ffloat-store): Clarify that this option
2836 does not affect intermediate results -- only variables.
2838 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
2840 * cpp.texi: Update for Fortran usage from Craig.
2842 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
2844 * rs6000.c (function_arg_boundary): Revert accidental change on
2847 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
2849 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
2850 (output_mi_thunk): Declare.
2852 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
2853 (output_function_profiler): Use r12 for temp, instead of r11 so
2854 that we preserve the static chain register.
2856 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
2858 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
2860 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2862 * sh.c (gen_shl_sext): Fix case 5.
2864 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2866 * reload1.c (reload_combine): Re-add line that got accidentally lost.
2868 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2870 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
2871 accessing variables until they are initialized via va_arg().
2873 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2875 * reload1.c (reload_combine): Initialize set before using.
2877 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
2879 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
2882 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
2884 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
2885 operand3 with mask before using it. Patch provided by Jim Wilson.
2887 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2889 * config/sparc/sparc.c (function_value): Perform the equivalent of
2890 PROMOTE_MODE for ARCH64.
2891 (eligible_for_epilogue_delay): Allow DImode operations in delay
2892 slot of a return for ARCH64.
2894 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2896 * sh.md (sqrtsf2): Fix mode of sqrt.
2898 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2900 * reload1.c (choose_reload_regs): Also try inheritance when
2901 reload_in is a stack slot of a pseudo, even if we already got a
2904 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2906 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
2907 (reload_cse_regs): New function body: call reload_cse_regs_1,
2908 reload_combine, reload_cse_move2add.
2909 When doing expensive_optimizations, call reload_cse_regs_1 a
2910 second time after reload_cse_move2add.
2911 (reload_combine, reload_combine_note_store): New functions.
2912 (reload_combine_note_use): New function.
2913 (reload_cse_move2add, move2add_note_store): New functions.
2915 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2917 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
2918 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
2920 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
2921 more than 3 such reloads.
2923 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
2924 RELOAD_FOR_X_ADDR_ADDR reload.
2926 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2928 * expr.c (store_constructor): When initializing a field that is smaller
2929 than a word, at the start of a word, try to widen it to a full word.
2931 * cse.c (cse_insn): When we are about to change a register,
2932 remove any invalid references to it.
2934 (remove_invalid_subreg_refs): New function.
2935 (mention_regs): Special treatment for SUBREGs.
2936 (insert_regs): Don't strip SUBREG for call to mention_regs.
2937 Check if reg_tick needs to be bumped up before that call.
2938 (lookup_as_function): Try to match known word_mode constants when
2939 looking for a norrower constant.
2940 (canon_hash): Special treatment for SUBREGs.
2942 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2944 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
2945 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
2946 defined, emit libcall to __enable_execute_stack. Also fix opcodes
2947 and offsets in actual stack trampoline code so they match the
2948 commentary and actually work.
2950 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2952 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
2954 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
2955 tmake_file. Set extra_parts to needed crt objects.
2956 * configure: Rebuilt.
2957 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
2958 (TARGET_DEFAULT): Set if default is v9 or ultra.
2959 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
2960 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
2961 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
2962 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
2963 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
2964 (TARGET_VERSION): Define.
2965 (MULTILIB_DEFAULT): Define.
2966 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
2967 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
2968 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
2970 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
2971 * config/sparc/sparc.c (sparc_override_options): If arch and
2972 pointer size disagree, emit diagnostic and fix it up. If
2973 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
2974 V8PLUS in 64-bit mode.
2975 * config/sparc/t-linux64: New file.
2976 * config/sparc/t-sol2-64: New file.
2977 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
2978 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
2979 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
2980 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
2981 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
2982 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
2984 (STARTFILE_SPEC): Set approriately based upon those.
2985 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
2986 disposition of DEFAULT_ARCH32_P.
2987 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
2988 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
2989 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
2990 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
2991 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
2993 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
2995 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
2997 * rtl.h (init_virtual_regs): New function.
2998 * emit-rtl.c (init_virtual_regs): Define.
2999 (insn_emit): Use it.
3000 * integrate.c (save_for_inline_copying): Likewise.
3002 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
3004 * config/arm/thumb.h: The following patches were made by Jim Wilson:
3005 (enum reg_class): Add NONARG_LO_REGS support.
3006 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
3007 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
3008 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
3009 completes. Re-enable HImode REG+OFFSET addresses.
3010 (LEGITIMIZE_RELOAD_ADDRESS): Define.
3012 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
3014 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
3016 * alpha.c (get_aligned_mem): Revert Sep 20 change.
3017 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
3018 (alpha_align_insns): Properly calculate initial offset wrt max_align.
3020 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
3022 * arm.c (find_barrier): Revert change of Apr 23. Handle table
3023 jumps as a single entity, taking into account the size of the
3026 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
3028 * tree.def (SWITCH_EXPR): New tree node definition.
3030 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
3032 * version.c: Bump for snapshot.
3034 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
3036 * version.c: Bump for snapshot.
3038 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
3040 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
3043 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
3045 * Revert this patch.
3046 * reload.c (find_reloads): Do not replace a pseudo with
3047 (MEM (reg_equiv_addr)) in the initializing insn for the
3050 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
3052 * final.c (final_scan_insn): Disable tracking CC across branches.
3054 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3056 * expr.h (eh_rtime_match_libfunc): New extern declaration.
3057 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
3058 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
3059 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
3060 NULL. Only include <stdio.h> if inhibit_libc is not defined.
3062 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
3064 * toplev.c (rest_of_compilation): Skip compiling anything with
3065 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
3067 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
3069 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
3070 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
3071 use in_libcall_block.
3072 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
3073 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
3076 Mon Sep 21 14:02:23 1998
3078 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
3079 typo in no-fancy-math-387 description.
3081 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
3083 * version.c: Bump for snapshot.
3085 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
3087 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
3089 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
3091 * i386.h: (TARGET_SWITCHES) Add description fields for flags
3092 documented in install.texi.
3093 (TARGET_OPTIONS) Likewise.
3095 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
3097 * version.c: Bump for snapshot.
3099 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
3101 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
3102 * cccp.c (main): Likewise.
3104 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
3105 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
3108 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
3110 * Makefile.in (LIBS): Link in libiberty.a.
3111 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
3113 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
3115 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
3116 it to update bb boundaries. Update caller.
3117 * function.c (reposition_prologue_and_epilogue_notes): Update
3118 bb boundaries wrt the moved note.
3120 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
3122 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
3124 * configure: Regenerate.
3126 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
3128 * alpha.c (alpha_sr_alias_set): New variable.
3129 (override_options): Set it.
3130 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
3131 (mode_mask_operand): Fix signed-unsigned comparision warning.
3132 (alpha_expand_block_move): Likewise.
3133 (print_operand): Likewise.
3134 (get_aligned_mem): Use change_address.
3135 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
3136 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
3137 (alphaev4_next_nop, alphaev5_next_nop): New functions.
3138 (alpha_align_insns): Remade from old alphaev5_align_insns
3139 to handle multiple processors.
3140 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
3141 * output.h (label_to_alignment): Prototype.
3143 * tree.c (new_alias_set): New function.
3144 * tree.h (new_alias_set): Declare it.
3145 * c-common.c (c_get_alias_set): Use it.
3147 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
3149 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
3150 to an ABS expr, convert an unsigned input to signed.
3152 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
3154 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
3156 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3158 * configure.in: Add support for c4x targets.
3159 * configure: Rebuilt.
3161 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
3163 * combine.c (distribute_notes): If an insn is a cc0 user, only
3164 delete it if we can also delete the cc0 setter.
3166 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
3168 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
3169 (invert_truthvalue): Enable truthvalue inversion for
3170 floating-point operands if -ffast-math.
3172 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
3174 * configure.in: Disable collect2 for nextstep. Instead use
3176 * configure: Rebuilt.
3177 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
3178 (ENDFILE_SPEC): Define.
3179 (OBJECT_FORMAT_MACHO): Define.
3180 (EH_FRAME_SECTION_ASM_OP): Define.
3181 * crtstuff.c: Handle MACHO.
3183 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
3185 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
3187 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
3189 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
3190 (_fpadd_parts): Get sign right for 0.
3192 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
3194 * ginclude/varargs.h: Add support for C4x target.
3195 * ginclude/stdargs.h: Likewise.
3197 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
3199 * alpha.c (alpha_return_addr): SET should be VOIDmode.
3200 (alpha_emit_set_long_const): Rewrite to be callable from reload
3202 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
3203 * alpha.md (movdi): Likewise.
3205 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
3207 * arm.c (add_constant): New parameter address_only, change caller.
3208 Set it non-zero if taking the address of an item in the pool.
3209 (arm_reorg): Handle cases where we need the address of an item in
3212 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
3214 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
3215 memory addresses that are not in standard canonical form.
3217 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
3219 * README.C4X: New file with information about the c4x ports.
3220 * ginclude/va-c4x.h: New file for c4x varargs support.
3221 * config/c4x: New directory with c4x port files.
3223 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
3225 * reload.c (find_reloads): Do not replace a pseudo with
3226 (MEM (reg_equiv_addr)) in the initializing insn for the
3229 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
3231 * toplev.c (rest_of_compilation): Set bct_p on second call to
3233 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
3235 (strength_reduce): Only call analyze_loop_iterations and
3236 insert_bct if bct_p set.
3237 (check_dbra_loop): Fix typo.
3238 (insert_bct): Use word_mode instead of SImode.
3239 (instrument_loop_bct): Likewise. Do not delete iteration count
3240 condition code generation insn. Initialize iteration count before
3242 * rtl.h (loop_optimize): Update prototype.
3244 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
3245 not doubleword aligned.
3247 * rs6000.c (optimization_options): New function.
3248 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
3249 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
3250 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
3251 first; cr1 can be used for FP record condition insns.
3253 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
3255 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
3258 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
3261 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
3263 (block_move_call): New function: Call a library routine to copy a
3265 (m32r_expand_block_move): New function: Expand a "movstrsi"
3266 pattern into a sequence of insns.
3267 (m32r_output_block_move): New function: Expand a
3268 "movstrsi_internal" pattern into a sequence of assembler opcodes.
3269 (m32r_block_immediate_operand): New function: Return true if the
3270 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
3272 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3274 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
3276 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
3278 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3280 * regmove.c (copy_src_to_dest): Check that modes match.
3282 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
3284 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
3286 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
3288 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
3289 narrower than FLOAT_REGS.
3291 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3293 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
3295 * Makefile.in (old_gxx_include_dir): removed
3297 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
3299 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
3302 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
3303 (sh_handle_pragma): Change function arguments to match new
3304 specification for HANDLE_PRAGMA.
3306 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3308 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
3310 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
3311 When generating output, initialize missing struct member to zero.
3313 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3315 * regmove.c (copy_src_to_dest): Don't copy if that requires
3316 (a) new register(s).
3318 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3320 * global.c (reg_allocno): Now static.
3321 * reload1.c (reg_allocno): Delete declaration.
3322 (order_regs_for_reload): Take no arguments. Don't treat regs
3323 allocated by global differently than those allocated by local-alloc.
3325 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
3327 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
3328 condition, fix format strings.
3329 (output_function_epilogue): Likewise.
3331 * m68k/m68k.c: Don't include <stdlib.h> directly.
3333 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
3335 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
3336 mem_first_set, mem_last_set; because 0 can be a CUID.
3337 (oprs_unchanged_p): Use new definition.
3338 (record_last_reg_set_info): Likewise.
3339 (record_last_mem_set_info): Likewise.
3340 (compute_hash_table): Likewise.
3342 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
3344 * rs6000.c (output_epilogue): Handle Chill.
3346 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3347 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
3349 * combine.c (make_extraction): If no mode is specified for
3350 an operand of insv, extv, or extzv, default it to word_mode.
3351 (simplify_comparison): Similarly.
3352 * expmed.c (store_bit_field): Similarly.
3353 (extract_bit_field): Similarly.
3354 * function.c (fixup_var_regs_1): Similarly.
3355 * recog.c (validate_replace_rtx_1): Similarly.
3356 * mips.md (extv, extzv, insv expanders): Default modes for most
3357 operands. Handle TARGET_64BIT.
3358 (movdi_uld, movdi_usd): New patterns.
3360 * pa.c (emit_move_sequence): Do not replace a pseudo with its
3361 equivalent memory location unless we have been provided a scratch
3362 register. Similarly do not call find_replacement unless a
3363 scratch register has been provided.
3365 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3367 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
3370 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
3372 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
3373 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
3374 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
3375 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
3376 * c-decl.c (init_decl_processing): Update accordingly.
3377 * expr.c (expand_builtin): Likewise.
3379 * rtl.h (global_rtl): Add cfa entry.
3380 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
3381 (LAST_VIRTUAL_REGISTER): Update.
3382 * emit-rtl.c (global_rtl): Add cfa entry.
3383 (init_emit): Initialize it.
3384 * function.c (cfa_offset): New.
3385 (instantiate_virtual_regs): Initialize it.
3386 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
3387 (expand_function_end): Call expand_eh_return.
3388 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
3390 * except.c (current_function_eh_stub_label): Kill.
3391 (current_function_eh_old_stub_label): Likwise; update all references.
3392 (expand_builtin_set_return_addr_reg): Kill.
3393 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
3394 (expand_builtin_set_eh_regs): Kill.
3395 (eh_regs): Produce a third reg for the actual handler address.
3396 (eh_return_context, eh_return_stack_adjust): New.
3397 (eh_return_handler, eh_return_stub_label): New.
3398 (init_eh_for_function): Initialize them.
3399 (expand_builtin_eh_return, expand_eh_return): New.
3400 * except.h: Update prototypes.
3401 * flow.c (find_basic_blocks_1): Update references to the stub label.
3402 * function.h (struct function): Kill stub label elements.
3404 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
3405 register number is one that would be in the previous window.
3406 Provide a dummy definition for non-windowed targets.
3407 (get_reg_addr): New function.
3408 (get_reg, put_reg, copy_reg): Use it.
3409 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
3410 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
3412 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
3413 (alpha_init_expanders): Initialize it.
3414 (alpha_expand_epilogue): Use it.
3415 * alpha.h: Declare it.
3416 * alpha.md (eh_epilogue): New.
3418 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
3419 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
3421 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
3423 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
3426 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3428 * except.h (struct eh_entry): Add false_label field.
3429 (end_catch_handler): Add prototype.
3430 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
3431 (start_catch_handler): When using old style exceptions, issue
3432 runtime typematch code before continuing with the handler.
3433 (end_catch_handler): New function, generates label after handler
3434 if needed by older style exceptions.
3435 (expand_start_all_catch): No need to check for new style exceptions.
3436 (output_exception_table_entry): Only output the first handler label
3437 for old style exceptions.
3438 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
3439 mechanism into one function, if a runtime matcher is provided.
3441 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
3443 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
3445 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
3447 * integrate.c (copy_decl_list): Fix typo.
3449 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3451 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
3454 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
3456 * version.c: Bump for snapshot.
3458 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
3460 * version.c: Bump for snapshot.
3462 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
3464 * version.c: Bump for snapshot.
3466 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3468 * invoke.texi (C Dialect Options): Put back missing @end itemize.
3470 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
3472 * configure.in: remove usage of `!' to negate the result of a
3473 command; some common shells do not support it
3475 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3477 * configure.in: in sparc9-sol2 config, use 'if test' not
3479 * configure: Rebuilt.
3481 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
3483 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
3484 (CPP_CPU_DEFAULT_SPEC): Likewise.
3485 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
3486 for arch64 libfuncs.
3488 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
3491 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3493 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
3495 * collect2.c: Don't declare `sys_siglist' here.
3496 (my_strsignal): Prototype and define new function. Use it in
3497 place of `sys_siglist' hacks.
3499 * mips_tfile.c: Likewise.
3501 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
3502 (GCC_NEED_DECLARATIONS): Likewise.
3504 * system.h (strsignal): Prototype it, if necessary.
3505 (sys_siglist): Declare it, if necessary.
3507 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3509 * loop.c (move_movables): While removing insn sequences, preserve
3510 the next pointer of the most recently deleted insn when we skip
3513 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
3515 * objc/config-lang.in: Do not output the name of the selected
3516 thread file when building the front-end. The Makefile for the
3517 runtime library will do this.
3519 * objc/Make-lang.in: Do not build the runtime library or install
3520 the Objective C header files. The Makefile for the runtime
3521 library will do this.
3523 * objc/Makefile.in (all.indirect): Only build the front-end.
3524 (compiler): Rename to `frontend'.
3525 (obj-runtime): Remove target.
3526 (copy-headers): Likewise.
3527 (clean): No need to remove `libobjc.a' any longer.
3529 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
3531 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
3532 supported with -mcpu=xxx.
3534 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3536 * flow.c (mark_set_1): Recognize multi-register structure return
3537 values in CALL insns.
3538 (mark_used_regs): Likewise.
3539 (count_reg_sets_1): Likewise.
3540 (count_reg_references): Likewise.
3541 * rtlanal.c (note_stores): Likewise.
3542 (reg_overlap_mentioned_p): Likewise.
3543 * haifa-sched.c (check_live_1): Likewise.
3544 (update_live_1): Likewise.
3545 (sched_analyze_1): Likewise.
3546 (sched_note_set): Likewise.
3547 (birthing_insn_p): Likewise.
3548 (attach_deaths): Likewise.
3550 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
3553 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
3555 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
3557 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3559 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
3561 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3563 * configure.in: Add check for GAS subsection -1 support.
3564 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
3565 * configure config.in: Rebuilt.
3566 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
3567 SImode is subsection -1 works, else use DImode.
3568 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
3569 subsection -1 works.
3570 * config/sparc/sparc.c (sparc_output_addr_vec,
3571 sparc_output_addr_diff_vec): Use them if defined.
3573 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
3575 * tree.h (DECL_ORIGIN): New macro.
3576 * integrate.c (copy_and_set_decl_abstract_origin): New function.
3577 (copy_decl_list): Use it.
3578 (integrate_parm_decls): Likewise.
3579 (integrate_decl_tree): Likewise.
3580 * dwarf2out.c (decl_ultimate_origin): Simplify.
3581 * dwarfout.c (decl_ultimate_origin): Likewise.
3582 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
3583 (pushdecl): Likewise.
3585 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
3587 * config/rs6000/rs6000.c (output_epilog): Add Java support.
3589 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
3591 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
3593 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
3595 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
3596 empty or has a single entry.
3598 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
3599 before calling reg_to_stack.
3601 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
3603 * alpha.c (alphaev5_insn_pipe): Abort on default case.
3604 (alphaev5_next_group): Swallow CLOBBERs and USEs.
3606 * c-tree.h (warn_long_long): Declare it.
3608 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
3610 * emit-rtl.c (gen_lowpart_common): Disable optimization of
3611 initialized float-int union if the value is a NaN.
3613 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
3615 * c-lex.c (real_yylex): Don't warn about long long constants if
3616 we're allowing long long
3618 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
3620 * except.h (current_function_eh_stub_label): Declare.
3621 (current_function_eh_old_stub_label): Declare.
3622 * function.h (struct function): New members eh_stub_label and
3624 * except.c (current_function_eh_stub_label): New variable.
3625 (current_function_eh_old_stub_label): New variable.
3626 (init_eh_for_function): Clear them.
3627 (save_eh_status): Save them.
3628 (restore_eh_status): Restore them.
3629 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
3630 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
3631 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
3632 make an edge from the block that contains it to the block starting
3633 with the label if this label is one of the eh stub labels.
3634 If eh stub labels exist, show they are reachable from the last block
3637 * reload1.c (reload): Break out several subroutines and make some
3639 (calculate_needs_all_insns): New function, broken out of reload.
3640 (calculate_needs): Likewise.
3641 (find_reload_regs): Likewise.
3642 (find_group): Likewise.
3643 (find_tworeg_group): Likewise.
3644 (something_needs_reloads): New global variable, formerly in reload.
3645 (something_needs_elimination): Likewise.
3646 (caller_save_spill_class): Likewise.
3647 (caller_save_group_size): Likewise.
3648 (max_needs): Likewise.
3649 (group_size): Likewise.
3650 (max_groups): Likewise.
3651 (max_nongroups): Likewise.
3652 (group_mode): Likewise.
3653 (max_needs_insn): Likewise.
3654 (max_groups_insn): Likewise.
3655 (max_nongroups_insn): Likewise.
3656 (failure): Likewise.
3658 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
3660 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
3662 * loop.c (load_mems): Copy rtx for output mem.
3664 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
3666 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
3667 mips1 or mips2 either.
3669 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
3671 * pa.c (pa_reorg): New marking scheme for jumps inside switch
3673 (pa_adjust_insn_length): Update to work with new marking scheme
3674 for jumps inside switch tables.
3675 * pa.md (switch_jump): Remove pattern.
3676 (jump): Handle jumps inside jump tables.
3678 * Makefile.in (profile.o): Depend on insn-config.h
3680 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
3682 * iris6.h (DWARF2_UNWIND_INFO): Undef.
3684 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3686 Add preliminary native sparcv9 Solaris support.
3687 * configure.in: Recognize sparv9-*-solaris2*
3688 * configure: rebuilt
3689 * config.sub: Recognize sparcv9 just like sparc64.
3690 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
3691 config/sparc/sol2-cn.asm: Macroize so it can be shared between
3692 32-bit and 64-bit Solaris systems.
3693 * config/sparc/t-sol2: Assemble those with cpp.
3694 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
3695 (*TF*_LIBCALL): If ARCH64 use V9 names.
3696 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
3698 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3700 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
3701 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
3703 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
3705 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
3706 to Pmode if CASE_VECTOR_MODE is something else.
3708 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
3710 * prefix.c (update_path): Correctly handle cases where PATH is
3711 a substring of the builtin prefix, but specifies a different
3714 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
3716 * expr.c: Corrected comment about what MOVE_RATIO does.
3717 * config/alpha/alpha.h: Ditto.
3718 * config/1750a/1750a.h: Ditto.
3719 * config/clipper/clipper.h: Ditto.
3720 * config/i386/i386.h: Ditto.
3722 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
3724 * configure.in (m68k-next-nextstep3*): Use collect2.
3725 Similarly for x86 NeXT configurations.
3726 * configure: Rebuilt.
3728 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
3730 * configure.in: Don't assume srcdir is .../gcc
3731 * configure: Rebuilt.
3733 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
3735 * global.c: Update comments.
3736 (global_alloc): Assign allocation-numbers
3737 even for registers allocated by local_alloc in case
3738 they are later spilled and retry_global_alloc is called.
3739 (mark_reg_store, mark_reg_clobber,
3740 mark_reg_conflicts, mark_reg_death): Always record a
3741 conflict with a pseudo register even if it has been
3742 assigned to a hard register.
3743 (dump_conflicts): Don't list pseudo registers already assigned to
3744 a hard register as needing to be allocated, but do list their
3746 * local-alloc.c: Update comment.
3748 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
3750 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
3751 * configure: Rebuilt.
3753 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
3755 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
3757 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
3758 for all targets that set -msoft-float.
3760 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3762 * toplev.c (print_switch_values): Make static to match prototype.
3764 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
3766 * configure.in: If we are unable to find the "gnatbind" program,
3767 then do not configure the ada subdir.
3768 * configure: Rebuilt.
3770 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
3772 * version.c: Bump for snapshot.
3774 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
3776 * version.c: Bump for snapshot.
3778 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3780 * Makefile.in (toplev.o): Depend on $(EXPR_H).
3781 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
3783 * gansidecl.h: Define ATTRIBUTE_NORETURN.
3785 * genattrtab.c: Have insn-attrtab.c include toplev.h.
3787 * genextract.c: Have insn-extract.c include toplev.h.
3789 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
3791 * toplev.c: Include expr.h.
3792 (really_sorry, fancy_abort): Remove prototypes.
3793 (set_target_switch): Add argument in prototype.
3794 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
3795 (v_really_sorry): Likewise.
3796 (print_version, print_single_switch, print_switch_values): Make
3797 static and add prototype arguments.
3798 (decl_printable_name): Add prototype arguments.
3799 (lang_expand_expr_t): New typedef.
3800 (lang_expand_expr): Declare as a lang_expand_expr_t.
3801 (incomplete_decl_finalize_hook): Add prototype argument.
3802 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
3803 (botch): Likewise for variable `s'.
3804 (rest_of_type_compilation): Mark variables `type' and `toplev'
3805 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
3806 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
3807 (display_help): Make variable `i' an `unsigned long'.
3808 (main): Remove unused parameter `envp'.
3809 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
3810 Cast -1 when comparing it with a `size_t'.
3812 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
3813 prototype with ATTRIBUTE_NORETURN.
3814 (fatal_insn_not_found, fatal_insn, really_sorry,
3815 push_float_handler, pop_float_handler): Add prototypes.
3816 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
3817 (do_abort, botch): Add prototypes.
3819 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
3821 * final.c (final): If a label is reached only from a single jump,
3822 call NOTICE_UPDATE_CC on the jump and its predecessor before
3823 emitting the insn after the label.
3825 * i386.h: Add AMD K6 support.
3826 Change TARGET_* macros to use table lookup.
3827 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
3828 (ADJUST_COST): Change definition to call function in i386.c.
3829 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
3830 * i386.c: Add AMD K6 support.
3831 Add constants for feature tests used by TARGET_* macros.
3832 (split_di): If before reload, call gen_lowpart and gen_highpart.
3833 (x86_adjust_cost): New function.
3834 (put_jump_code): New function.
3835 (print_operand): New codes 'D' and 'd'.
3836 * i386.md: New insn types. New insn attribute "memory".
3837 Redefine scheduling parameters to use new types and add AMD K6
3838 support. Explicitly set type of most insns.
3839 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
3840 Pro and K6 prefer movl $1,reg to incl reg.
3841 (adddi3, subdi3): Set cc_status.
3842 (DImode shift patterns): Change label counters from HOST_WIDE_INT
3843 to int; x86 can't have more than 2^31 DImode shifts per file.
3844 (setcc): Combine all setcc patterns. Allow writing memory.
3845 Combine all jump patterns using match_operator.
3846 (*bzero): Name pattern. Emit mutliple stos instructions when that
3847 is faster than rep stos.
3848 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
3851 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
3853 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
3856 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
3858 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
3859 not whatever we're generating now.
3861 * alpha.c (set_frame_related_p, FRP): New.
3862 (alpha_expand_prologue): Mark frame related insns.
3863 (alpha_expand_epilogue): Likewise, but with a null FRP.
3864 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
3865 * alpha.md (exception_receiver): New.
3866 * alpha/crtbegin.asm (.eh_frame): New beginning.
3867 (__do_frame_setup, __do_frame_takedown): New.
3868 * alpha/crtend.asm (.eh_frame): New ending.
3869 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
3870 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
3871 (ASM_FILE_START): Don't emit .file for dwarf2.
3873 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
3874 * rtl.c (reg_note_name): Likewise.
3875 * rtl.texi (REG_NOTES): Likewise.
3876 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
3879 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
3881 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
3882 * i386.md (movsf, movdf, movxf): Validate memory address returned
3883 from force_const_mem. Kill useless REG_EQUAL setting code.
3885 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
3887 * m68k.md (zero_extendsidi2): Fix typo.
3889 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
3891 * configure.in: Removed references to the removed file
3892 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
3893 * arm*-*-netbsd* and ns32k-*-netbsd*.
3894 * config/i386/xm-netbsd.h: Removed unnecessary file.
3895 * config/m68k/xm-netbsd.h: Likewise.
3896 * config/sparc/xm-netbsd.h: Likewise.
3897 * config/mips/xm-netbsd.h: Likewise.
3899 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
3901 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
3902 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
3904 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
3905 for exact section attributions.
3907 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
3909 * i386/crtdll.h (CPP_PREDEFINES): Define.
3911 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
3913 * m68k.md (5200 movqi): Do not allow byte sized memory references
3915 * m68k.c (output_move_qimode): Do not use byte sized operations on
3918 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
3919 explicit rules for building. Similarly for alloca, vfprintf,
3920 choose-temp and mkstemp, getopt, getopt1, and obstack.
3921 (INCLUDES): Add $(srcdir)/../include.
3922 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
3923 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
3925 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
3927 * gcc.c (do_spec_1): [case 'o'] Account for
3928 lang_specific_extra_outfiles.
3929 (main): Correctly clear all slots in outfiles for
3930 lang_specific_extra_outfiles. Set input_file_number before
3931 calling lang_specific_pre_link.
3933 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
3935 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
3937 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3939 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
3941 (sparc_output_deferred_case_vectors): If no work to do, return.
3942 Fix thinko in Sept 1 change.
3944 1998-09-03 SL Baur <steve@altair.xemacs.org>
3946 * Makefile.in: add semicolon in BISON definition for portability.
3948 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
3950 * config/nextstep.c (handle_pragma): Correct name of third
3953 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
3955 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
3956 * config/m32r/m32r.h: Make register 17 be fixed.
3957 * config/m32r/m32r.c: Use SImode for cc operations.
3959 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
3961 * invoke.texi (Warning Options): Add -Wnon-template-friend
3964 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
3966 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
3968 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
3970 * rs6000.md (movsf): Disable explicit secondary-reload-like
3971 functionality if TARGET_POWERPC64.
3972 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
3975 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
3977 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
3978 and term.h from fixinc.wrap.
3980 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3982 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
3983 safe to include both string.h and strings.h together.
3984 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
3985 which headers to search for function declarations. Continue to
3986 prefer string.h over strings.h when both are not acceptable.
3988 * acconfig.h (STRING_WITH_STRINGS): Add stub.
3990 * configure.in: Call GCC_HEADER_STRING.
3992 * system.h: Test STRING_WITH_STRINGS when deciding which headers
3993 to include. Continue to prefer string.h over strings.h when both
3996 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3998 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
3999 not assume top 32-bits of symbolic addresses are zero if
4002 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
4004 * ginclude/va-alpha.h: Protect entire second portion of the
4005 file against double inclusion.
4007 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
4009 Added support for the Boehm's garbage collector.
4010 * configure.in: Handle --enable-objc-gc.
4011 * configure: Rebuilt.
4012 * Makefile.in (CHECK_TARGETS): Add check-objc.
4013 (check-objc): New rule.
4014 * objc/Make-lang.in: Build a different Objective-C library that
4015 runs with the Boehm's collector.
4016 * objc/encoding.c (objc_round_acc_size_for_types): New function.
4017 * objc/encoding.c: Correctly compute the size of compound types in
4018 the presence of bitfields. Skip the variable name of the type if
4019 any. Added support for long long.
4020 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
4021 (_F_GCINVISIBLE): New mask.
4022 * objc/gc.c: New file. Compute the type memory mask associated with
4023 a class based on the runtime information.
4024 * objc/misc.c: Added the hooks that use the Boehm's collector
4025 allocation functions.
4026 * objc/objc-act.c (build_class_template): Generate a new class
4027 member (gc_object_type) to hold the class' type memory mask.
4028 (build_shared_structure_initializer): Initialize the new member to
4030 (encode_complete_bitfield): New function. Generate the new
4032 (encode_field_decl): Generate the new encoding only for the GNU
4034 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
4036 (class_get_gc_object_type): New function to mark a pointer instance
4037 variable as a weak pointer.
4038 * objc/objc-features.texi: New file.
4039 * objc/objc.h (gc_object_type): New class member.
4040 * objc/objects.c (class_create_instance): Create a typed memory
4041 object when compiled with Boehm's collector support.
4042 * objc/sendmsg.c (__objc_init_install_dtable): Call
4043 __objc_send_initialize instead of setting the initialize flag.
4044 (__objc_send_initialize): Call __objc_generate_gc_type_description
4045 to generate the class type memory mask. Rewrite the code that
4046 sends the +initialize so that it is called only once (bug report
4047 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
4048 * testsuite/objc: New testsuite for Objective-C type encoding.
4049 * testsuite/lib/objc-torture.exp: New file.
4050 * testsuite/lib/objc.exp: New file.
4052 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
4054 * jump.c (jump_optimize): In if/then/else transformations, add
4055 another call to modified_between_p for the jump insn.
4057 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
4059 * fix-header.c (symlink): Treat like readlink.
4061 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4063 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
4066 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
4068 * config/nextstep.h: Update HANDLE_PRAGMA macro.
4069 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
4070 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
4072 * config/nextstep.c (handle_pragma): Take three arguments, as per
4073 the new HANDLE_PRAGMA macro specification.
4074 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
4075 per the new HANDLE_PRAGMA macro specification.
4076 * config/i960/i960.c (process_pragma): Take three arguments, as
4077 per the new HANDLE_PRAGMA macro specification.
4079 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
4081 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
4082 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
4083 if unknown pragmas are encountered.
4084 (handle_sysv_pragma): Interpret return code from
4085 handle_pragma_token (). Return success/failure indication rather
4086 than next unprocessed character.
4087 (pragma_getc): New function: retrieves characters from the
4088 input stream. Defined when HANDLE_PRAGMA is enabled.
4089 (pragma_ungetc): New function: replaces characters back into the
4090 input stream. Defined when HANDLE_PRAGMA is enabled.
4092 * c-pragma.c (handle_pragma_token): Return success/failure status
4095 * c-pragma.h: Change prototype of handle_pragma_token().
4097 * varasm.c: (handle_pragma_weak): Only create this function if
4098 HANDLE_PRAGMA_WEAK is defined.
4100 * c-common,c (decl_attributes): If defined call the expression
4101 contained within the INSERT_ATTRIBUTES macro before adding
4102 attributes to a decl.
4104 * tm.texi (HANDLE_PRAGMA): Document the new verion of
4105 HANDLE_PRAGMA, which takes three arguments.
4106 (INSERT_ATTRIBUTES): Document this new macro.
4108 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
4109 new INSERT_ATTRIBUTES macro.
4111 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4113 * config/sparc/sparc.md (movdf): Only generate special RTL for
4114 LABEL_REFs when PIC.
4115 (move_label_di): Remove
4116 (movdi_pic_label_ref, movdi_high_pic_label_ref,
4117 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
4118 references when PIC.
4119 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
4120 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
4121 output an .xword for all 64-bit cases.
4123 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4125 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
4126 alignment, use FUNCTION_BOUNDARY instead.
4127 (sparc_output_deferred_case_vectors): Likewise.
4129 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4131 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
4132 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
4134 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
4136 * alpha/va_list.h: New file.
4137 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
4139 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
4141 * NEWS: Add SCO Openserver and Unixware 7 notes.
4145 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
4147 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
4148 (record_constant_1): Handle RANGE_EXPR.
4150 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
4152 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
4153 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
4154 and NOTE_INSN_RANGE_END specially.
4155 (reemit_notes): Likewise.
4157 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4159 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
4160 (ultrasparc_sched_init): Remove unneeded &.
4162 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4164 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
4165 for m68020-60, to prevent the use of fintrz.
4167 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
4169 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
4171 * Makefile.in: Likewise.
4172 * configure: Regenerated.
4174 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
4176 * configure.in (gxx_include_dir): Changed to
4177 '${prefix}/include/g++'-${libstdcxx_interface}.
4178 * configure: Rebuilt.
4180 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
4182 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
4184 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
4185 *sequences* *below* which scalar moves will be used.
4187 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
4189 * collect2.c (mktemp): Delete unused declaration.
4191 * config/xm-netbsd.h: Remove unnecessary file.
4192 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
4193 file anymore, it is not needed.
4195 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
4197 * convert.c (convert_to_integer): Issue an error on conversions to
4200 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
4202 * Makefile.in: Add lang_tree_files and gencheck.h.
4203 * configure.in: Generate them.
4204 * gencheck.c: Include gencheck.h.
4206 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4208 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
4209 movdi_lo_sum_pic and movdi_high_pic and make visible.
4210 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
4211 emit these when Pmode is not SImode.
4212 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
4214 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
4216 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
4217 .linkonce directive after the first time.
4219 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
4221 * m68k.md (beq0_di): Generate correct (and more efficient) code when
4222 the clobbered operand overlaps with an input.
4223 (bne0_di): Similarly.
4225 * Makefile.in (INSTALL): Remove "--no-header" argument.
4227 * NEWS: Various updates.
4229 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4231 * config/sparc/sparc.c (arith_operand, const64_operand,
4232 const64_high_operand, arith_double_4096_operand): Mark mode as
4234 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
4236 (sparc_emit_set_const64): Remove unused variable i.
4237 (sparc_splitdi_legitimate): Likewise for addr_part.
4238 (ultra_code_from_mask): Likewise for mask.
4239 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
4240 reverse return values so it matches usage and comments.
4241 (ultra_flush_pipeline): Likewise.
4242 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
4243 this_type, and allow loads and stores of differing FP modes as
4244 they do not create a conflict.
4245 (ultra_find_type): Initialize fpmode to SFmode, fix
4246 parenthesization thinkos in large conditional.
4247 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
4248 Init free_slot_mask after ultra_cur_hist is reset, not before.
4249 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
4250 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
4251 use ultra_flush_pipeline instead, then re-init group pointer.
4252 Fix statement with no effect. If no progress made in, and no
4253 instructions scheduled at all, advance to new pipeline cycle else
4254 we get into an endless loop.
4255 (ultrasparc_adjust_cost): Remove previous arg.
4256 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
4258 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
4260 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
4261 code. Use reg_overlap_mentioned_p to detect when source and
4262 destination overlap.
4263 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
4265 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
4267 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
4268 COMPARISON_VAL, into invariant_p.
4270 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4272 * regmove.c (regclass_compatible_p): New function.
4273 (regmove_optimize): Use it.
4275 Use NREGS parameter insted of calling max_reg_num.
4277 (fixup_match_1): Don't use code = MINUS when later tieing with
4278 a hard register is likely.
4280 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4282 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
4283 COMPARISON_VAL was normalized.
4285 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
4287 * loop.c (check_dbra_loop): The loop ending comparison value
4288 must be an invariant or we can not reverse the loop.
4290 * loop.c (scan_loop): Count down from max_reg_num - 1 to
4291 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
4293 (load_mems_and_recount_loop_regs_set): Likewise.
4295 * i386.c (print_operand): Remove obsolete 'c' docs.
4297 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
4299 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
4300 * frame.c (init_object_mutex): New function.
4301 (init_object_mutex_once): Likewise.
4302 (find_fde): Call it.
4303 (__register_frame_info): Likewise.
4304 (__register_frame_info_table): Likewise.
4305 (__deregister_frame_info): Likewise.
4307 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
4309 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
4311 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4313 * loop.c (check_dbra_loop): Enable code for reversal
4314 of some loops without a known constant loop end.
4316 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
4318 * haifa-sched.c (last_clock_var): New.
4319 (schedule_block): Initialize it.
4320 (schedule_insn): Use it to fill insn modes with issue information.
4322 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
4323 Tag trapb and next insn with TImode.
4324 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
4325 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
4326 Invoke alphaev5_align_insns as appropriate.
4327 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
4328 (MD_SCHED_VARIABLE_ISSUE): New.
4329 * alpha.md (attr type): Add multi.
4330 (define_asm_attributes): New.
4331 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
4332 (arg_home): Likewise.
4333 (fnop, unop, realign): New.
4335 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
4337 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
4338 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
4340 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
4341 (rs6000-ibm-aix4.[12]*): Likewise.
4342 * configure: Regnerate.
4344 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
4346 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
4347 already contains the return address.
4349 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
4351 * calls.c (expand_call): Use bitfield instructions to extract/deposit
4352 word sized hunks when loading unaligned args into registers.
4354 * haifa-sched.c (sched_analyze_insn): Only create scheduling
4355 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
4357 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
4359 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4361 * loop.c (check_dbra_loop): Add some code that would allow reversal
4362 of some loops without a known constant loop end if it were enabled.
4364 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
4366 * mips.md (lshrsi3_internal2+2): Fix type-o.
4368 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4370 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
4371 correctly with regards to stdio.h.
4373 * calls.c: Remove stdarg.h/varargs.h.
4376 * combine.c: Likewise.
4377 * cpperror.c: Likewise.
4378 * cpplib.c: Likewise.
4379 * cpplib.h: Likewise.
4380 * doprint.c: Likewise.
4381 * emit-rtl.c: Likewise.
4382 * final.c: Likewise.
4383 * fix-header.c: Likewise.
4385 * genattr.c: Likewise.
4386 * genattrtab.c: Likewise.
4387 * gencodes.c: Likewise.
4388 * genconfig.c: Likewise.
4389 * genemit.c: Likewise.
4390 * genextract.c: Likewise.
4391 * genflags.c: Likewise.
4392 * genopinit.c: Likewise.
4393 * genoutput.c: Likewise.
4394 * genpeep.c: Likewise.
4395 * genrecog.c: Likewise.
4396 * mips-tfile.c: Likewise.
4397 * prefix.c: Likewise.
4398 * protoize.c: Likewise.
4399 * regmove.c: Likewise.
4400 * toplev.c: Likewise.
4403 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4405 * config/sparc/sparc.c (sparc_override_options): If not
4406 TARGET_FPU, turn off TARGET_VIS.
4407 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
4408 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
4409 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
4410 (movdi_insn_sp64): Add VIS fzero alternative.
4411 (clear_sf, clear_df): New VIS patterns.
4412 (movsf, movdf expanders): Allow fp_zero_operand flat out when
4414 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
4416 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
4418 * loop.c (n_times_set, n_times_used, may_not_optimize,
4419 reg_single_usage): Convert to varrays. All uses changed.
4420 (insert_loop_mem): Return a value.
4421 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
4422 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
4425 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
4428 * configure.in: Do not set thread_file to "irix" since no such
4431 * sparc.md (float abs/neg splits): Check reload_completed before
4432 calling alter_subreg.
4434 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4436 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
4438 * config/sparc/sparc.h: Declare it.
4439 * config/sparc/sparc.md (float abs/neg splits): Use it.
4440 (all other splits): Handle SUBREGs properly where necessary.
4441 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
4443 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
4445 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
4446 an insn on the unfilled_slots_list that has no delay slots.
4447 (fill_eager_delay_slots): Similarly.
4449 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
4451 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
4452 as an ordinary operand.
4454 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
4456 * tree.c (valid_machine_attribute): Don't apply attributes to both
4459 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
4461 * reload.c (operands_match_p): Handle rtvecs.
4463 * i386.c (legitimate_pic_address_disp_p): New.
4464 (legitimate_address_p): Use it.
4465 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
4466 Handle constant pool symbols just like statics.
4467 (emit_pic_move): Use Pmode not SImode for clarity.
4468 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
4469 [UNSPEC]: New, handling what we killed above.
4470 [PLUS]: Detect and abort on invalid symbol arithmetic.
4471 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
4473 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
4475 * alias.c: Include output.h.
4476 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
4477 different if we're in a varargs function.
4478 * Makefile.in (alias.o): Depend on output.h
4480 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4482 * sh.h (GIV_SORT_CRITERION): Delete.
4484 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
4486 * regclass.c (regclass): Use xmalloc/free instead of alloca.
4487 * stupid.c (stupid_life_analysis): Ditto.
4488 * reload1.c (reload): Ditto.
4490 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
4492 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
4493 arith_double_4096_operand, arith_double_add_operand): New
4495 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
4496 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
4497 them to transform add/sub 4096 into add/sub -4096.
4499 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4501 * loop.c (scan_loop): Allocate some slop to handle pseudos
4502 generated by move_movables.
4503 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
4506 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
4508 * tree.def (DECL_RESULT): Correct documentation.
4510 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4512 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
4513 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
4514 conflicts will all RELOAD_FOR_OUTPUT reloads.
4516 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
4517 loads the function result, substitute with a USE.
4519 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4521 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
4522 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
4523 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
4524 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
4525 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
4526 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
4528 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
4529 'o' to 'm' for GPR variant constraints.
4531 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
4533 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
4535 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
4537 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
4538 when the source and destination overlap.
4540 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
4541 clash with global type.
4543 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
4545 * fixinc.irix: Add curses.h handling from fixinc.wrap.
4547 * c-common.c (combine_strings): Also set TREE_READONLY.
4548 Change warn_write_strings to flag_const_strings.
4549 * c-decl.c, c-tree.h: Likewise.
4551 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4553 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
4554 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
4555 sequence, use SET/IOR instead so CSE can see it.
4556 * config/sparc/sparc.md (movhi_const64_special,
4557 movsi_const64_special): New patterns necessitated by that change.
4558 (movhi_high): Remove.
4559 (movhi_lo_sum): Change to match an IOR.
4560 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
4561 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
4562 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
4563 (movdf splits): Allow when not V9 or when not ARCH64 and integer
4564 registers are involved.
4565 (snesi_zero_extend split): Remove reload_completed test.
4566 (unnamed plus and minus zero_extend sidi splits): Add it.
4568 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
4570 * extend.texi: Remove description of extension to explicit
4571 instantiation that is now endorsed by standard C++.
4573 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4575 * config/arc/arc.c (arc_initialize_pic): Remove.
4576 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
4577 nothing on any platform and is invoked by no-one, it does not even
4578 appear in the documentation.
4579 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
4580 * config/sparc/sparc.c (initialize_pic): Likewise.
4581 (find_addr_reg): Remove this as well, no longer referenced after
4584 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
4586 * recog.c (validate_replace_rtx_group): New function.
4587 * recog.h (validate_replace_rtx_group): Declare it.
4588 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
4589 the entire group of substitutions.
4591 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
4593 * loop.c (load_mems): Fix initializers.
4595 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4597 * config/sparc/sparc.md (TFmode splits): Handle destination
4598 registers being referenced in the address correctly.
4600 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
4601 TREE_UNSIGNED, when bitsize of type's mode is larger than
4602 HOST_BITS_PER_WIDE_INT.
4604 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4606 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
4607 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
4608 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
4610 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
4613 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
4615 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
4616 * h8300.h (TINY_DATA_NAME_P): Likewise.
4617 (STRIP_NAME_ENCODING): Handle '&'.
4619 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
4620 register (it could be accessed via an outer SUBREG).
4621 (REG_OK_FOR_BASE_P): Likewwise.
4622 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
4624 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
4627 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
4629 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4631 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
4632 must be offsettable so the splits can be made.
4634 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
4636 * config/i386/winnt.c: Include system.h, not stdio.h to get
4637 sys/param.h pulled in before rtl.h in case the system defines MIN
4640 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
4642 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
4644 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
4646 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
4648 * cpplib.c (cpp_define): Handle macros with parameters.
4650 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
4652 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
4653 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
4654 and DImode 64-bit. Use llong for minimal-toc SFmode and
4655 SYMBOL_REF / LABEL_REF 64-bit.
4656 (output_function_profiler): Use llong for profiler label and ld to
4657 load 64-bit label address.
4659 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
4661 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
4664 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
4666 * version.c: Bump for snapshot.
4668 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
4670 * version.c: Bump for snapshot.
4672 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
4674 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
4676 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
4678 * tm.texi (Misc): Fix typo "teh".
4680 * tm.texi (PIC): Fix typo "PPIC".
4682 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
4683 effect when -O2 and higher.
4684 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
4686 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
4688 * regclass.c: Changed register set documentation to be consistent
4691 * final.c (final_start_function) Removed redundant test for
4694 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
4696 * rtl.h (rtx_function): New type.
4697 (for_each_rtx): New function.
4698 * rtlanal.c (for_each_rtx): Define it.
4700 * recog.c (change_t): New type.
4701 (change_objects, change_old_codes, change_locs, change_olds):
4703 (changes): New variable.
4704 (validate_change): Dynamically allocate room for more changes, if
4705 necessary. Uses changes array instead of change_objects, etc.
4706 (apply_change_group): Use changes array instead of
4707 change_objects, etc.
4709 * loop.c (loop_mem_info): New type.
4710 (loop_mems): New variable.
4711 (loop_mems_idx): Likewise.
4712 (looop_mems_allocated): Likewise.
4713 (scan_loop): Remove nregs parameter.
4714 (next_insn_in_loop): New function.
4715 (load_mems_and_recount_loop_regs_set): Likewise.
4716 (load_mems): Likewise.
4717 (insert_loop_mem): Likewise.
4718 (replace_loop_mem): Likewise.
4719 (replace_label): Likewise.
4720 (INSN_IN_RANGE_P): New macro.
4721 (loop_optimize): Don't pass max_reg_num() to scan_loop.
4722 (scan_loop): Remove nregs parameter, compute it after any new
4723 registers are created by load_mems. Use INSN_IN_RANGE_P and
4724 next_insn_in_loop rather than expanding them inline. Call
4725 load_mems to load memory into pseudos, if appropriate.
4726 (prescan_loop): Figure out whether or not there are jumps from the
4727 loop to targets other than the label immediately following the
4728 loop. Call insert_loop_mem to notice all the MEMs used in the
4729 loop, if it could be safe to pull MEMs into REGs for the duration
4731 (strength_reduce): Use next_insn_in_loop. Tweak comments.
4733 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
4735 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
4737 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4739 * config/sparc/sparc.c (finalize_pic): Check for the correct
4740 nonlocal_goto_receiver UNSPEC number.
4741 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
4742 making note of this dependency existing in sparc.c
4743 (negtf2_notv9 split): Give NEG SFmode.
4744 (negsf2): Fix insn output string.
4746 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
4748 * c-common.c (decl_attributes): Issue an error if the argument
4749 to alias is not a string.
4751 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
4753 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
4754 pending memory flush list.
4756 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
4758 (try_combine): Allow combining insns with REG_LIBCALL notes.
4760 * expr.c (emit_block_move): Do not call memcpy as a libcall
4761 instead build up a CALL_EXPR and call it like any other
4763 (clear_storage): Similarly for memset.
4765 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
4768 * Makefile.in (cplus-dem.o): Provide explicit rules for building
4771 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
4772 and REG_LIVE_LENGTH as successful substitutions are made.
4774 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4776 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
4777 statement after end of loop label.
4779 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4781 * config/sparc/sparc.c (ultra_types_avail): New variable.
4782 (ultra_build_types_avail): New function to record mask of insn
4783 types in ready list at this cycle.
4784 (ultrasparc_sched_reorder): Call it.
4785 (ultra_find_type): Use it to quicken the search. Also simplif
4786 dependency check, don't use rtx_equal_p because we know exactly
4787 what we are looking for.
4789 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
4791 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
4792 for architecture v4.
4794 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4796 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
4798 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
4799 movdf_const_intreg and helper splits): New patterns to move float
4800 constants into integer registers.
4801 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
4804 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
4807 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
4809 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
4811 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
4812 a BASE_REGS register is needed as an intermediate when copying
4813 a symbolic value into any register class other than BASE_REGS.
4815 * expr.c (move_by_pieces): No longer static. Remove prototype.
4816 * rtl.h (move_by_pieces): Add extern prototype.
4817 * mips.c (expand_block_move): Handle aligned straight line copy by
4818 calling move_by_pieces.
4820 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
4823 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
4825 * stmt.c (expand_end_loop): Tidy. Allow unconditional
4826 jumps out of the loop to be treated as part of the exit test.
4828 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4829 Jeff Law <law@cygnus.com>
4831 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
4832 * cplus-dem.c: Delete.
4834 * Makefile.in (fold-const.o): depend on $(RTL_H).
4836 * fold-const.c: Include rtl.h to get the prototype for
4837 `set_identifier_local_value'.
4839 * loop.c (express_from_1): Remove unused variable `tmp'.
4840 (combine_givs): cast the first argument of bzero to char *.
4842 * toplev.c (display_help): Remove unused variable `looking_for_start'.
4844 * c-decl.c (init_decl_processing): Remove unneeded &.
4846 * alpha.h (alpha_initialize_trampoline): Provide prototype.
4848 * except.c (set_exception_lang_code, set_exception_version_code):
4849 Change parameter from `short' to `int' to avoid using a gcc
4852 * except.h (set_exception_lang_code, set_exception_version_code):
4853 Likewise for prototypes.
4855 * flow.c (count_reg_references): Remove unused variables `regno'
4858 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
4860 * prefix.c (translate_name): Cast the result of `alloca'.
4862 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
4864 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
4866 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
4868 (valid_dbcc_comparison_p): Mark mode argument as unused.
4869 (symbolic_operand): Likewise.
4870 (legitimize_pic_address): Likewise.
4871 (const_uint32_operand): Likewise.
4872 (const_sint32_operand): Likewise.
4873 * sched.c [!INSN_SCHEDULING]: Define only dummy function
4874 schedule_insns and comment out rest of file.
4876 * m68k.c (output_move_simode_const): Use subl to move a zero into an
4878 (output_move_[hq]imode): Likewise.
4880 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
4882 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
4883 * invoke.texi: Corresponding changes.
4885 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
4887 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
4889 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4891 * config/sparc/sparc.c (ultra_code_from_mask,
4892 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
4893 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
4894 ultrasparc_sched_init, ultrasparc_variable_issue,
4895 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
4896 functions to describe UltraSPARC pipeline exactly to Haifa.
4897 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
4898 as there is nothing the scheduler can do about it. Indicate that
4899 REG_DEP_OUTPUT's collide. Fixup formatting.
4900 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
4901 divide costs on Ultra for DImode.
4902 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
4904 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
4905 ieuN and add call_no_delay_slot to type list.
4906 (cti function unit): New unit for branches on UltraSPARC.
4907 (subx/addx insns): Set type to misc.
4908 (sidi zero/sign extension insns on arch64): Set type to shift.
4909 (sign_extendhidi2_insn): Set type to sload.
4911 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
4913 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
4914 (output_epilog): Use if != 0 for offset.
4915 (rs6000_fatal_bad_address): Prepare for Intl.
4916 * rs6000.h (rs6000_fatal_bad_address): Declare.
4917 * rs6000.md (movsfcc, movdfcc): Use else if.
4918 (elf_high): Use {liu|lis}.
4919 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
4920 (movsi): Use rs6000_fatal_bad_address.
4922 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
4924 * reload.c (find_equiv_reg): Reject equivalences separated
4925 by a volatile instruction.
4927 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
4929 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
4931 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
4933 * alpha.md (movsicc): Fix mode mismatch.
4935 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
4937 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
4939 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
4941 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4943 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
4944 write-only modifier from operand 1 constraint.
4946 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4948 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
4949 emitting a XOR of -1 at the end, emit a NOT instead for combine's
4951 (sparc_emit_set_const64): Likewise, also when computing trailing
4952 bits do not negate low_bits and make fast_int an int.
4954 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
4956 * loop.c (add_label_notes): Do not ignore references to labels
4957 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
4958 * gcse.c (add_label_notes): Similarly.
4960 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
4962 * m68k.md (adddi_dilshr32): One of the operands must be a register.
4963 (adddi_dishl32): Similarly.
4965 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
4967 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
4968 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
4969 * cse.c (cse_basic_block): Add parens to shut up warnings.
4971 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4973 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
4974 sparc_emit_set_const64_longway, const64_is_2insns,
4975 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
4976 in 64-bit constant formation.
4977 * config/sparc/sparc.md (snesi_zero_extend split): Generate
4978 rtl for addx not subx.
4979 (define_insn movdi_const64_special): Make available even when
4980 HOST_BITS_PER_WIDE_INT is not 64.
4981 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
4982 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
4983 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
4984 instances of operand 1 inside a QI subreg.
4985 (xordi3_sp64_dbl): Remove '%' constraint for op1.
4986 (one_cmpldi2_sp64): Fix output string.
4987 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
4989 (unnamed arch64 ashift DI): Truncate shift count if greater than
4992 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
4994 * expr.c (store_expr): Don't optimize away load-store pair
4995 when either source or destination have a side effect.
4997 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
4999 * genrecog.c (add_to_sequence): Fatal error if the modes of the
5000 operands of SET are incompatible.
5002 * alpha.md: Fix max and min patterns so modes of SET operands match.
5004 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
5006 * configure.in: Avoid [[ by using test and changequote.
5007 * configure: Rebuild.
5009 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5011 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
5013 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
5014 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
5015 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
5016 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
5017 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
5018 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
5019 Fix mismatching modes in SET operands.
5020 (conditional move patterns): Fix formatting.
5021 (unnamed subx arch64 pattern): Remove duplicate insn.
5023 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5025 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5026 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
5027 (input_operand): Fixup test for what we accept for constant
5029 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
5031 (safe_constDI): Remove.
5032 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
5033 gen_safe_XOR64): New functions.
5034 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
5035 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
5037 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
5038 available when HOST_BITS_PER_WIDE_INT is not 64.
5039 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
5040 move before movdi_insn_sp64 pattern.
5041 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
5042 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
5043 symbolic_operand as predicate for second operand.
5044 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
5045 expander): Give set VOIDmode.
5047 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
5049 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
5051 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
5053 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
5055 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
5057 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
5059 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
5061 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
5063 * install.texi: Various SCO OpenServer tweaks.
5065 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
5067 * reload1.c (eliminate_regs_in_insn): Handle another case when
5068 eliminating the frame pointer to the hard frame pointer. Add
5069 missing ep->to_rtx check to one existing case.
5071 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
5073 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
5075 * tree.h: De-conditionalize init_priority code.
5077 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
5078 * collect2.c (NM_FLAGS): Change from -p to -n.
5080 * configure.in: Turn on collect2 for mipstx39-elf.
5081 Handle use_collect2=no properly.
5083 * c-common.c: De-conditionalize init_priority code.
5084 * collect2.c (extract_init_priority, sort_ids): New fns.
5085 (main): Call sort_ids.
5086 Move sequence_number to file scope.
5088 * configure.in: Handle --enable-init-priority.
5089 * c-common.c (attrs): Add A_INIT_PRIORITY.
5090 (init_attributes, decl_attributes): Likewise.
5091 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
5092 * tree.c (get_file_function_name_long): Split out...
5093 (get_file_function_name): ...from here.
5095 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
5097 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
5100 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
5102 * toplev.c (display_help): Add braces to shut up warnings.
5103 * tree.c (simple_cst_equal): Likewise.
5105 * fold-const.c (non_lvalue): Don't deal with null pointer
5107 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5109 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
5110 of any size to a pointer.
5112 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
5114 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
5116 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
5118 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
5119 which will be saved.
5120 * mn10300.md (prologue insn): Only save registers which need saving.
5121 (epilogue insn): Similarly.
5123 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
5126 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
5128 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
5129 VAR_DECL's in gp addressable sections.
5131 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
5133 * sparc.c: Change return <exp> to <exp>; return; in functions
5135 * sparc.md: Add empty semicolon statement after final label in
5138 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5140 * config/sparc/sparc.md (define_insn addx_extend): Rename to
5141 addx_extend_sp64, only allow when TARGET_ARCH64.
5142 (define_insn addx_extend_sp32 and split): Version that works when
5144 (define_insn subx_extend): Likewise.
5145 (define_split adddi3 and subdi3 with zero extension): Fixup and
5146 correct bugs when not TARGET_ARCH64.
5148 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
5150 * except.c (set_exception_lang_code, set_exception_version_code):
5151 Use prototype-style definition if __STDC__, to match declaration
5154 * genemit.c: Change FAIL and DONE macros not to use loops.
5156 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
5158 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
5159 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
5161 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
5163 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
5165 * README.g77: Update from Craig.
5167 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5169 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
5171 (safe_constDI sparc_emit_set_const64_quick1,
5172 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5173 analyze_64bit_constant, const64_is_2insns,
5174 create_simple_focus_bits): Fix some bugs when compiled on real
5176 (function_arg_record_value_3, function_arg_record_value_2,
5177 function_arg_record_value): Add fully prototyped forward decls.
5178 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
5179 to cmpsi_insn and use on both 64 and 32 bit targets.
5180 (define_insn cmpsi_insn_sp64): Remove.
5181 (define_expand zero_extendsidi2): Allow for 32-bit target too.
5182 (define_insn zero_extendsidi2_insn): Rename to
5183 zero_extendsidi2_insn_sp64.
5184 (define_insn zero_extendsidi2_insn_sp32): New pattern and
5185 assosciated forced split for it.
5187 * config/sparc/sparc.c (const64_operand, const64_high_operand):
5189 * config/sparc/sparc.h: Declare them.
5190 (PREDICATE_CODES): Add them.
5191 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
5192 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
5194 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
5196 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
5197 in v9 case as the latter makes the Solaris assembler crash.
5199 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5201 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
5202 for TFmode when !v9. We require offsettable memory addresses.
5203 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
5204 DFmode register number conversions.
5205 * config/sparc/sparc.md (define_split DFmode moves): If register
5206 is a SUBREG do alter_subreg on it before using.
5207 (define_expand movtf): Fixup comment about alignment on v9.
5208 (define_split TFmode moves): Don't use gen_{high,low}part, create
5209 explicit SUBREGs instead.
5211 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
5213 * Makefile.in (mbchar.o): Depend on mbchar.c.
5215 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5216 Richard Henderson <rth@cygnus.com>
5218 Rewrite Sparc backend for better code generation and
5219 improved sparc64 support.
5220 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
5222 * config/sparc/sysv4.h: Likewise.
5223 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
5224 move_operand, v8plus_regcmp_op, emit_move_sequence,
5225 singlemove_string, doublemove_string, mem_aligned_8,
5226 output_move_double, output_move_quad, output_fp_move_double,
5227 move_quad_direction, output_fp_move_quad, output_scc_insn):
5229 (small_int_or_double): New predicate.
5230 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
5231 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
5232 old pic_{sethi,lo_sum}_si patterns.
5233 (mem_min_alignment): New generic function to replace
5234 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
5235 available and can test for arbitrary alignments. All callers
5237 (save_regs, restore_regs, build_big_number,
5238 output_function_prologue, output_cbranch, output_return,
5239 sparc_flat_save_restore, sparc_flat_output_function_prologue,
5240 sparc_flat_output_function_epilogue): Prettify
5242 (output_function_epilogue): Likewise and add code to output
5243 deferred case vectors.
5244 (output_v9branch): Likewise, add new arg INSN and use it to tack
5245 on branch prediction settings. All callers changed.
5246 (print_operand): Likewise and output %l44 for LO_SUMs when
5248 (sparc_splitdi_legitimate): New function to make sure DImode
5249 splits can be run properly when !arch64.
5250 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
5251 Reformat example code in comments.
5252 (set_extends): Remove UNSPEC/v8plus_clear_high case.
5253 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
5254 of deferred case vectors we need to output.
5255 (sparc_defer_case_vector): Record a case vector.
5256 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
5257 sparc_output_deferred_case_vectors): New functions to output them.
5258 (sparc_emit_set_const32): New function to form 32-bit constants in
5259 registers when that requires more than one instruction.
5260 (safe_constDI, sparc_emit_set_const64_quick1,
5261 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
5262 analyze_64bit_constant, const64_is_2insns,
5263 create_simple_focus_bits, sparc_emit_set_const64): New functions
5264 which do the same for 64-bit constants when arch64.
5265 (sparc_emit_set_symbolic_const64): New function to emit address
5266 loading for all code models on v9.
5267 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
5268 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
5269 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
5270 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
5271 inaccuracies in comments, add symbolic and text_segment operands
5272 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
5273 GENERAL_REGS in these cases as a temp REG is needed to load these
5274 addresses into a register properly.
5275 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
5277 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
5278 quads are guarenteed to have 16-byte alignment.
5279 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
5280 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
5281 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
5282 deferred case vector implementation.
5283 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
5284 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
5285 Generate "internal label - label" instead of "label - 1b".
5286 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
5287 (PREDICATE_CODES): Remove sparc_operand, move_operand,
5288 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
5290 (doublemove_string, output_block_move, output_fp_move_double,
5291 output_fp_move_quad, output_move_double, output_move_quad,
5292 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
5293 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
5294 (sparc_emit_set_const32, sparc_emit_set_const64,
5295 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
5296 mem_min_alignment, small_int_or_double): Add externs.
5297 * config/sparc/sparc.md: Document the many uses of UNSPEC and
5298 UNSPEC_VOLATILE in this backend.
5299 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
5300 unary to types which execute in it.
5301 (define_function_unit ieu_shift): Rename to ieu0.
5302 (define_function_unit ieu1): New, executes compare, call, and
5303 uncond_branch type insns.
5304 (define_function_units for type fdivs, fdivd, fsqrt): These
5305 execute in the fpu multiply unit not the adder on UltraSparc.
5306 (define_expand cmpdi): Disallow TARGET_V8PLUS.
5307 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
5308 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
5309 allows the arith_double_operand predicate and rHI constraint when
5311 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
5312 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
5313 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
5314 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
5315 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
5316 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
5317 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
5318 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
5319 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
5320 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
5321 sign_extendqihi2_insn, sign_extendqisi2_insn,
5322 sign_extendqidi2_insn, sign_extendhidi2_insn,
5323 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
5324 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
5325 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
5326 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
5327 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
5328 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
5329 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
5330 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
5331 smulsi3_highpart_v8plus, unnamed subreg mult,
5332 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
5333 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
5334 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
5335 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
5336 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
5337 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
5338 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
5339 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
5340 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
5341 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
5342 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
5343 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
5344 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
5345 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
5346 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
5347 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
5348 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
5349 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
5350 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
5351 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
5352 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
5353 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
5354 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
5355 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
5356 call_address_untyped_struct_value_sp32,
5357 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
5358 call_value_symbolic_sp32, call_value_address_sp64,
5359 call_value_symbolic_sp64, branch_sp32, branch_sp64,
5360 flush_register_windows, goto_handler_and_restore,
5361 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
5362 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
5363 return_addsi, return_di, return_adddi, return_sf, all call+jump
5364 peepholes, trap, unnamed trap insns): Prettify output strings.
5365 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
5366 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
5367 Likewise and force + implement splits for integer cases.
5368 (define_insn return_sf_no_fpu): Likewise and allow to match when
5369 no-fpu because of our subreg SFmode splits.
5370 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
5371 zero_extendqidi2_insn, zero_extendhidi2_insn,
5372 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
5373 input_operand for second operand.
5374 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
5375 reg_or_0_operand for operand 2 so new splits can use it.
5376 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
5377 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
5379 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
5380 CONST_DOUBLEs for operand 2.
5381 (define_insn move_label_di): Likewise and label distance
5382 optimization because it no longer works with new deferred case
5383 vector scheme. To be revisited.
5384 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
5385 and allow reg_or_0_operand and J constraint for second operand.
5386 (define_insn jump): Set branch predict taken on V9.
5387 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
5388 new deferred case vector scheme.
5389 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
5390 (define_insn negdi2_sp32): Force + implement splits.
5391 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
5392 one_cmplsi2_not_liveg0 respectively, and create expander of original
5393 names which emit special rtl for TARGET_LIVE_G0.
5394 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
5395 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
5396 gen_compare_reg, FAIL instead.
5397 (define_insn sgtu, sleu): Likewise and check gen_s*() return
5398 values when trying to reverse condition codes, if they FAIL then
5400 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
5401 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
5402 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
5403 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
5404 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
5405 set output string to # to indicate they are mandatory splits.
5406 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
5407 pic_sethi_di, move_pic_label_si): Remove.
5408 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
5409 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
5411 (define_expand movsi_pic_label_ref, define_insn
5412 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
5413 expander and insns to handle PIC label references and deferred
5415 (define_insn get_pc_via_rdpc): Comment out as it is no longer
5417 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
5418 Rewrite to not use emit_move_sequence, make use of new constant
5419 formation code, and new splits for all multi-insn cases.
5420 (define_insn movqi_insn): Remove sethi case, it can never happen.
5421 Use reg_or_zero_operand instead of const0_rtx explicit test,
5422 use input_operand instead of move_operand for source, and use
5423 general_operand now for dest.
5424 (define_insn movhi_insn): Similar but leave sethi case.
5425 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
5426 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
5427 movhi_lo_sum respectively, prettify output string.
5428 (define_insn movsi_zero_liveg0): New pattern to put zero into a
5429 register when needed on TARGET_LIVE_G0.
5430 (define_insn movsi_insn): Use general_operand and input_operand
5431 for dest and src respectively. Simplify applicability test.
5432 Prettify output strings, and add clr alternative for J
5434 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
5435 deprecated std and reg-reg DI moves): Remove and...
5436 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
5437 implementation which uses forced splits for all non-single insn
5439 (define_split DI move cases on !arch64): New splits to handle all
5440 situations of 64-bit double register DImode on 32bit, and
5441 unaligned registers and memory addresses for all subtargets.
5442 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
5444 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
5445 input_operand for dest and src respectively, prettify output
5447 (define_insn movdf_insn, movdf_no_e_insn, store_df,
5448 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
5450 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
5451 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
5452 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
5453 movtf_no_e_insn_sp64) Replace with new
5454 implementation which uses forced splits for all non-single insn
5456 (define_split DF move cases): New splits in similar vein to DI
5458 (define_insn sethi_di_medlow, sethi_di_medium_pic,
5459 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
5460 movdi_sp64_insn): Remove old v9 code model and constant loading
5462 (define_insn pic_lo_sum_di, pic_sethi_di,
5463 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
5464 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
5465 embmedany_sethi, embmedany_losum, embmedany_brsum,
5466 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
5467 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
5468 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
5469 scheme, using unspecs, secondary reloads, and one to one sparc
5470 insn to rtl insn mapping for better scheduling and code gen.
5471 (define_expand reload_indi, reload_outdi): Reload helpers for
5472 MEDANY and EMBMEDANY symbol address loading cases which require a
5474 (define_expand movsicc): Remove v8plus_regcmp cases.
5475 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
5476 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
5477 cmp_diqi_trunc_set): New patterns used by some of the new scc
5479 (define_insn xordi3_sp64_dbl): New pattern used for constant
5480 formation when crossing from 32-bit targets.
5481 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
5483 (define_insn addx, subx): Make visible and prettify.
5484 (define_insn adddi3_insn_sp32): Likewise and force split.
5485 (define_insn addx_extend, subx_extend, unnamed): New patterns for
5486 64bit scc split usage.
5487 (define_insn unnamed plusDI zero_extend, unnamed minusDI
5488 zero_extend, subdi3): Force and implement splits.
5490 * final.c (final_scan_insn): Don't output labels if target
5491 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
5494 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
5495 don't forget to walk inside SEQUENCESs too as these are what the
5496 delay slot scheduler will create.
5498 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
5500 * alpha.md (extxl+1,+2): New patterns to work around
5503 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
5505 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
5506 caused bad assembly code to be generated.
5508 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
5510 * netbsd.h: Fix typo.
5512 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
5514 * config.sub: Fix typo.
5516 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
5518 * invoke.texi (Environment Variables): Typo: Change "ascpects"
5520 (Running Protoize): Typo: Change "ther" into "other".
5522 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
5524 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
5525 * m68k/netbsd.h: Likewise.
5526 * ns32k/netbsd.h: Likewise.
5527 * sparc/netbsd.h: Likewise.
5529 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
5531 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
5532 * ginclude/va-clipper.h (va_list): Likewise.
5534 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
5536 * rs6000.c (rs6000_override_options): If big endian and -Os, use
5537 load/store multiple instructions unless user overrides.
5539 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
5541 * ns32k/netbsd.h: Fix typo.
5543 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
5545 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
5546 labels with .debugsym if no parallel insns.
5548 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
5550 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
5551 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
5553 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
5555 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
5556 (AR_FOR_TARGET): Define.
5558 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
5560 * dyn-string.h: New file.
5561 * dyn-string.c: Likewise.
5562 * Makefile.in (OBJS): Add dyn-string.o.
5563 (dwarf2out.o): Add dyn-string.h dependency.
5564 (dyn-string.o): List dependencies.
5565 * dwarf2out.c: Include dyn-string.h.
5566 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
5567 (addr_const_to_string): Take a dyn_string_t, not a char* as a
5568 prototype. Use dyn_string_append rather than strcat, throughout.
5569 (addr_to_string): Use dyn_string_t.
5571 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
5573 Function entry/exit profiling instrumentation:
5574 * expr.h (profile_function_entry_libfunc,
5575 profile_function_exit_libfunc): Declare new variables.
5576 * optabs.c: Define them here.
5577 (init_optabs): Initialize them.
5578 * tree.h (struct tree_decl): New flag
5579 no_instrument_function_entry_exit.
5580 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
5581 * c-decl.c (duplicate_decls): Merge it.
5582 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
5583 (init_attributes): Use it for "no_instrument_function".
5584 (decl_attributes): Handle it, for functions that have not yet been
5585 compiled. Set decl flag.
5586 * flags.h (flag_instrument_function_entry_exit): Declare new
5588 * toplev.c (flag_instrument_function_entry_exit): Define it here.
5589 (f_options): New option "instrument-functions".
5590 * function.h (struct function): New field instrument_entry_exit.
5591 * function.c (current_function_instrument_entry_exit): New
5593 (push_function_context_to, pop_function_context_from): Save and
5595 (expand_function_start): Set current_ variable, maybe emit return
5596 label and entry profile call.
5597 (expand_function_end): Maybe emit exit profile call.
5599 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
5601 * i386.md (movqi): When optimizing a load of (const_int 1) into a
5602 NON_QI_REG_P, pretend the register is SImode.
5604 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
5606 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
5607 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
5608 manufacturer id for ns32k.
5609 * configure: Regenerated.
5610 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
5611 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
5612 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
5613 * config/m68k/netbsd.h: Same.
5614 * config/ns32k/netbsd.h: Same.
5615 * config/sparc/netbsd.h: Same.
5617 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
5619 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
5620 or UNROLL_COMPLETELY loop that starts with a jump to its
5623 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
5625 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
5626 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
5627 (print_operand, case 'B'): Don't fall through.
5628 (print_operand, case 'S'): Correct mask begin/end computation.
5629 Use HOST_BITS_PER_WIDE_INT.
5630 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
5631 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
5632 * rs6000/aix41.h (CPP_PREDEFINES): Same.
5633 * rs6000/aix43.h (CPP_PREDEFINES): Same.
5635 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
5637 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
5638 constraint from second alternative.
5640 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5642 * configure.in: Fix --without/--disable cases for local-prefix,
5643 gxx-include-dir and checking.
5645 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5647 * configure.in (enable_haifa): Set by default for sparc64 too.
5650 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
5652 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
5653 * i386/winnt.c (associated_type): New fn.
5654 (i386_pe_valid_type_attribute_p): New fn.
5655 (i386_pe_check_vtable_importexport): Remove.
5656 (i386_pe_dllexport_p): Use associated_type.
5657 (i386_pe_dllimport_p): Likewise.
5659 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
5660 * i386.c (i386_valid_type_attribute_p): Also accept
5661 attributes for METHOD_TYPEs.
5663 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
5665 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
5667 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
5669 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
5671 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
5672 them from generating a new base name for each occurence of
5675 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
5677 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
5679 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
5683 * cplus-dem.c (type_kind_t): New type.
5684 (demangle_template_value_parm): Add type_kind_t parameter. Rely
5685 on this paramter, rather than demangling the type again.
5686 (demangle_integral_value): Pass tk_integral.
5687 (demangle_template_: Pass the value returned from do_type.
5688 (do_type): Return a type_kind_t. Pass tk_integral to
5689 demangle_template_value_parm for array bounds.
5690 (demangle_fund_type): Likewise.
5692 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
5694 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
5697 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
5699 * pa.c (move_operand): Accept CONSTANT_P_RTX.
5701 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
5703 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
5705 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
5708 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
5710 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
5711 (DEBUGGER_ARG_OFFSET): Likewise.
5713 * mn10300.md (movsf): Remove last change. Not needed.
5715 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
5717 * c-lex.c (yylex): Fix boundary conditions in character literal and
5718 string literal loops.
5720 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
5722 * longlong.h (count_leading_zeros): Sparclite scan instruction was
5723 being invoked incorrectly.
5725 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
5726 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
5728 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
5729 * configure.in: Added i[34567]86-*-win32
5730 * config.sub: Ditto.
5731 * configure: Rebuilt.
5733 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
5735 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
5736 the frame pointer and compiling PIC code and reload has not completed.
5738 * i386.c (output_to_reg): Add code to emulate non-popping DImode
5741 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
5743 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
5745 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
5747 * Makefile.in (install-info): Only try to update the info
5748 directory file if it exists in the first place.
5750 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
5752 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
5754 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
5756 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
5757 CONST_DOUBLE source.
5759 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
5761 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
5762 strings as the insertion of USER_LABEL_PREFIX.
5763 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
5765 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
5768 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
5770 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
5771 already defined type.
5773 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
5775 * expr.c (check_max_integer_computation_mode): Allow conversions
5776 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
5777 (expand_expr): Likewise.
5779 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5781 * expr.c (expand_expr): Expand RETURN_EXPR.
5783 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
5785 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
5787 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
5789 * dwarf2out.c (output_aranges): Call stripattributes
5790 for TEXT_SECTION references.
5791 (output_line_info): Likewise.
5793 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5795 * profile.c (branch_prob): Call allocate_reg_info after outputting
5796 profile rtl in instrument_arcs.
5798 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
5800 * fixinc.irix (math.h): Install wrapper instead of copying.
5802 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
5804 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
5805 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
5806 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
5807 lang_flag_0. Added documentation in the flag table.
5809 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
5811 * cccp.c (do_include): Fix vax c style include handling.
5813 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
5815 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
5817 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
5819 * fold-const.c (non_lvalue): Don't deal with null pointer
5821 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
5823 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
5825 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
5826 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
5827 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
5828 (u_short_cint_operand): Same.
5829 (reg_or_cint_operand): Same.
5830 (logical_operand): Same.
5831 (input_operand): Same.
5832 (reg_or_short_operand): Use u_short_cint_operand.
5834 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
5836 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
5837 but keep the insns and splits. Adjust so when the ultimate destination
5838 is memory, use cvtql.
5840 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
5842 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
5844 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
5846 * gcc.c (do_spec): Call "error" not "warning".
5848 * configure.in: Fix minor problems with gas feature detection code.
5849 * configure: Rebuilt.
5851 * gcc.c (do_spec): Issue a warning for '%[]' usage.
5854 * gcc.c: Delete %[spec] support.
5855 (do_spec_1, case '('): Likewise.
5856 (do_spec_1, case '['): Call error.
5858 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
5860 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
5861 (CPP_SUBTARGET_SPEC): Default to empty string.
5862 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
5863 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
5864 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
5865 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
5867 * alpha/linux.h (CPP_PREDEFINES): Tidy.
5868 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
5869 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
5870 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
5871 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
5872 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
5873 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
5874 * alpha/vxworks.h: Likewise.
5876 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
5878 * mips.md (reload_outsi): Added missing REGNO call.
5879 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
5881 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
5882 another match_operator and compare the codes.
5884 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
5886 * MIPS multiply pattern fixes:
5887 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
5888 Add union classes for HI, LO, or HILO plus general registers.
5889 (GENERATE_MADD): Deleted.
5890 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
5891 Add TARGET_MAD to condition.
5892 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
5893 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
5894 "*d" for accumulator, to give preference to LO initially but not
5897 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
5899 * configure.in (enable_c_mbchar): New configure option.
5900 (extra_cpp_objs): Always available now.
5902 * cexp.y (mbchar.h): #include it.
5903 (yylex): Handle Multibyte characters in character literals.
5905 * cccp.c (mbchar.h): #include it.
5906 (main): Set character set based on LANG environment variable.
5907 (rescan): Handle multibyte characters in comments.
5908 (skip_if_group): See above.
5909 (validate_else): See above.
5910 (skip_to_end_of_comment): See above.
5911 (macarg1): See above.
5912 (discard_comments): See above.
5913 (rescan): Handle multibyte characters in string and character literals.
5914 (collect_expansion): See above.
5915 (skip_quoted_string): See above.
5916 (macroexpand): See above.
5917 (macarg1): See above.
5918 (discard_comments): See above.
5919 (change_newlines): See above.
5921 * c-lex.c (mbchar.h): #include it.
5922 (GET_ENVIRONMENT): New macro.
5923 (init_lex): Set character set based on LANG environment variable.
5924 (yylex): Handle multibyte characters in character literals.
5925 (yylex): Handle multibyte characters in string literals.
5927 * Makefile.in (mbchar.o): New target.
5928 (cccp$(exeext)): @extra_cpp_objs@ is always available.
5929 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
5931 * mbchar.[ch]: New files for multibyte character handling.
5933 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
5935 * jump.c (jump_optimize): When simplifying noop moves and
5936 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
5937 the PUSHes to rewrite in second loop as we did in the first.
5939 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
5941 * cplus-dem.c (demangle_nested_args): Make function definition
5942 static to match the prototype.
5944 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
5946 * alloca.c: Respect USE_C_ALLOCA.
5947 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
5948 * gengenrtl.c (xmalloc): Likewise.
5950 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
5952 * loop.h (struct induction): Add no_const_addval.
5953 * loop.c (the_movables, reg_address_cost): New variables.
5954 (init_loop): Init reg_address_cost.
5955 (loop_optimize): Call end_alias_analysis.
5956 (scan_loop): Init the_movables.
5957 (record_giv): Init induction->no_const_addval.
5958 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
5959 [REG]: Rearrange loop search test to catch more cases.
5960 (general_induction_var): Return success not benefit; take an extra
5961 argument for that. Change all callers.
5962 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
5963 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
5964 [default]: Search the_movables for additional combinations.
5965 (sge_plus_constant, sge_plus): New functions.
5966 (express_from_1): New function.
5967 (express_from): Always define. Rewrite using express_from_1.
5968 (combine_givs_p): Handle more cases. Ignore address cost.
5969 (cmp_combine_givs_stats): New function.
5970 (combine_givs_used_once, combine_givs_benefit_from): New functions.
5971 (combine_givs): Rewrite to do best-fit combination.
5973 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
5974 (fold): Do a complete (A*C)+(B*C) association check.
5976 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
5978 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
5980 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
5982 * mn10300.c (MODES_TIEABLE_P): Fix typo.
5984 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
5986 * tree.c (valid_machine_attribute): Only create a new type variant if
5987 there is a decl to use it.
5989 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
5991 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
5994 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
5996 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
5999 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
6001 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
6002 Simplify tests for clearing an address register.
6003 (expand_prologue): Corresponding changes.
6005 * mn10300.md (movXX patterns): Make sure the destination is an
6006 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
6007 (logical patterns): Split into expanders + patterns
6008 (zero and sign extension patterns): Similarly.
6009 (shift patterns): Similarly.
6011 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
6013 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
6014 for the sequence, recording base values.
6016 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
6018 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
6020 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
6022 * gcc.c: Remove ANSI-C ism from --help code.
6024 * toplev.c: Support --help with USE_CPPLIB.
6026 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
6028 * configure.in: Rework gas feature code to work with symlink based
6031 * extend.texi: Clarify some issues related to local variables
6032 assigned to explicit registers.
6034 * mn10300.md (mulsi): Turn into expander + pattern.
6036 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
6039 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
6041 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
6043 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
6045 * version.c: Bump again to distinguish mainline tree from the
6048 See ChangeLog.0 for earlier changes.
6051 add-log-time-format: current-time-string
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