| blob | 42684765878dd5d72b7c7ac7005c9824933ca9d1 |
1 Sat Oct 17 01:17:51 1998 Jeffrey A Law (law@cygnus.com)
3 * reload1.c (reload_as_needed): Fix test for when to call
4 update_eliminable_offsets.
6 Fri Oct 16 20:40:50 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
8 Fix consistency problems with reg_equiv_{mem,address};
9 Improve reload inheritance;
11 * reload.c (reload_out_reg): New variable.
12 (loc_mentioned_in_p, remove_address_replacements): New functions.
13 (remove_replacements): Deleted.
14 (push_reload): Set reload_out_reg[i].
15 When merging, also set reload_{in,out}_reg[i], and remove
16 duplicate address reloads.
17 (combine_reloads): Copy reload_out_reg[i].
18 (find_reloads): Do make_memloc substitution also when
19 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
20 are both nonzero.
21 Include *recog_operand_loc in commutativity operand changes.
22 Generate optional output reloads.
23 Delete reference to n_memlocs. Don't set *recog_operand_loc before
24 processing operands. Call make_memloc in reg_equiv_address code.
25 Set *recog_operand_loc only after processing operands, and only
26 if replace is true. Return a value.
27 When changing address reload types for operands that didn't get
28 reloaded, use RELOAD_FOR_OPADDR_ADDRESS for
29 RELOAD_FOR_INPADDR_ADDRESS / RELOAD_FOR_OUTADDR_ADDRESS reloads.
30 Don't emit USEs for pseudo SUBREGs when not replacing.
31 (find_reloads_address): Do make_memloc substitution also when
32 reg_equiv_memory_loc[regno] and num_not_at_initial_offset
33 are both nonzero.
34 (find_reloads_toplev): Likewise.
35 Call make_memloc in reg_equiv_address code.
36 (debug_reload_to_stream): Add code to output reload_out_reg.
37 (make_memloc): Delete local variable i, ifdefed out code, and
38 references to memlocs and n_memlocs.
39 (memlocs, n_memlocs): Delete.
40 (push_secondary_reload): Clear reload_out_reg.
41 (find_reloads_address_1): Provide memrefloc argument to all calls
42 to find_reloads_address.
43 In AUTO_INC code, handle non-directly addressable equivalences properly.
44 * reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
45 (find_reloads): Add return type.
46 (remove_address_replacements, deallocate_reload_reg): Declare.
47 * reload1.c (num_not_at_initial_offset): No longer static.
48 (delete_address_reloads, delete_address_reloads_1): Likewise.
49 (deallocate_reload_reg): New function.
50 (spill_reg_stored_to): New array.
51 (eliminate_regs): Don't substitute from reg_equiv_memory_loc.
52 (eliminate_regs_in_insn): Move assignments of previous_offset and
53 max_offset fields, and recalculation of num_not_at_initial_offset
54 into new static function:
55 (update_eliminable_offsets) .
56 (reload_as_needed): Call update_eliminable_offsetss after calling
57 find_reloads.
58 Call forget_old_reloads_1 with contents of reloaded auto_inc
59 expressions if the actual addressing can't be changed to match the
60 auto_inc.
61 (choose_reload_regs): For inheritance, replace
62 reload_reg_free_before_p test with reload_reg_used_at_all test, and
63 remove stand-alone reload_reg_used_at_all test.
64 Use reload_out_reg to determine which reload regs have output reloads.
65 Treat reload_override_in more similar to inherited reloads.
66 Handle (subreg (reg... for inheritance.
67 For flag_expensive_optimizations, add an extra pass to remove
68 unnecessary reloads from known working inheritance.
69 Delete obsolete code for pseudos replaced with MEMs.
70 Handle inheritance from auto_inc expressions.
71 (emit_reload_insns): If reload_in is a MEM, set OLD to
72 reload_in_reg[j].
73 Don't reload directly from oldequiv; if it's a pseudo with a
74 stack slot, use reload_in[j].
75 Check that reload_in_reg[j] is a MEM before replacing reload_in
76 from reg_reloaded_contents.
77 Include non-spill registers in reload inheritance processing.
78 Also try to use reload_out_reg to set spill_reg_store /
79 reg_last_reload_reg.
80 In code to set new_spill_reg_store, use single_set to find out if
81 there is a single set.
82 Add code that allows to delete optional output reloads.
83 Add code to allow deletion of output reloads that use no spill reg.
84 At the end, set reload_override_in to oldequiv.
85 Also call delete_output_reload if reload_out_reg is equal to old
86 in oldequiv code.
87 Add code to call delete_output_reload for stores with no matching load.
88 Set / use spill_reg_stored_to.
89 Handle case where secondary output reload uses a temporary, but
90 actual store isn't found.
91 When looking for a store of a value not loaded in order to call
92 delete_output_reload, count_occurences should return 0 for no
93 loads; but discount inherited input reloadill_reg_stored_to.
94 Do checks for extra uses of REG. Changed all
95 callers.
96 Use delete_address_reloads.
97 (reload): Take return value of find_reloads into account.
98 If a no-op set needs more than one reload, delete it.
99 (reload_reg_free_before_p): RELOAD_FOR_INPUT
100 can ignore RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
101 for the same operand.
102 (clear_reload_reg_in_use): Check for other reloads that keep a
103 register in use.
104 (reload_reg_free_for_value_p): handle RELOAD_FOR_OPERAND_ADDRESS /
105 RELOAD_FOR_OPADDR_ADDR.
106 Take into account when an address address reload is only needed
107 for the address reload we are considering.
108 (count_occurrences): Use rtx_equal_p for MEMs.
109 (inc_for_reload): Return instruction that stores into RELOADREG.
110 New argument two, IN, and rtx. Changed all callers.
111 (calculate_needs_all_insns, reload_as_needed):
112 Don't clear after_call for a CLOBBER.
113 Keep track of how many hard registers need to be copied from
114 after_call, and don't clear after_call before we have seen
115 that much copies, or we see a different instruction.
117 Fri Oct 16 10:58:23 1998 Jeffrey A Law (law@cygnus.com)
119 * flow.c (find_basic_blocks_1): Do not delete unreachable blocks
120 after reload has completed.
122 Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
124 * cpplib.c (cpp_get_token): Replace whitespace that occurs between
125 a macro name and the next token with a single blank if that whitespace
126 is in a macro buffer and the next token is not '('.
128 Fri Oct 16 15:44:02 1998 Dave Brolley <brolley@cygnus.com>
130 * cccp.c (rescan): Handle multibyte chartacters ending in backslash.
131 (rescan): Ditto.
132 (skip_if_group): Ditto.
133 (skip_to_end_of_comment): Ditto.
134 (macarg1): Ditto.
135 (discard_comments): Ditto.
136 (change_newlines): Ditto.
138 Fri Oct 16 15:26:24 1998 Dave Brolley <brolley@cygnus.com>
140 * c-lex.c (yylex): Fix unaligned access of wchar_t.
142 Fri Oct 16 10:47:53 1998 Nick Clifton <nickc@cygnus.com>
144 * config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
145 (TARGET_OPTIONS): Add --help documentation.
147 Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
149 * rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
151 Fri Oct 16 07:08:46 1998 Bruce Korb <korb@datadesign.com>
153 * fixinc/* Moved in from ../contrib directory in preparation
154 for integrating it into the normal build process. In particular,
155 fixinc/Makefile.in must be config-ed into the build directory
156 as fixinc/Makefile. Proposed patches to ./Makefile.in and
157 ./configure.in will be "in the mail" momentarily.
159 Fri Oct 16 08:13:46 1998 David S. Miller <davem@pierdol.cobaltnet.com>
161 * cse.c (cse_basic_block): Fixup hash flushing loop so we do not
162 accidently walk into the free list. Comment how that can happen.
163 (invalidate): Fix indentation.
165 Thu Oct 15 23:53:29 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
166 Jeffrey A Law (law@cygnus.com)
168 * flow.c (life_analysis_1): Do not clobber regs_ever_live after
169 reload. Never perform rescans of the insn chain after reload.
170 (propagate_block): Do not delete insn or create new autoinc addressing
171 modes after reload.
173 * jump.c (jump_optimize): Unconditionally use the code that was
174 previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
175 * reload1.c (reload): When reloading is finished, delete all
176 REG_DEAD and REG_UNUSED notes.
177 (emit_reload_insns): Delete all code that was conditional on
178 PRESERVE_DEATH_INFO_REGNO_P.
179 (no_longer_dead_regs): Delete variable.
180 (reload_cse_delete_death_notes): Delete function.
181 (reload_cse_no_longer_dead): Delete function.
182 (reload_cse_regs_1): Delete all code to handle deletion of death
183 notes.
184 (reload_cse_noop_set_p): Likewise.
185 (reload_cse_simplify_set): Likewise.
186 (reload_cse_simplify_operands): Likewise.
187 (reload_cse_move2add): Likewise.
188 * reorg.c (used_spill_regs): Delete declaration.
189 (max_label_num_after_reload): Delete declaration.
190 (find_dead_or_set_registers): Don't assume that spill regs are
191 dead at a CODE_LABEL.
192 * rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
193 even after reload.
194 * sched.c (sched_analyze_insn): Likewise.
195 (update_flow_info): Likewise.
196 * haifa-sched.c (sched_analyze_insn): Likewise.
197 (update_flow_info): Likewise.
198 * tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
199 * toplev.c (max_label_num_after_reload): Delete variable.
200 (rest_of_compilation): Don't set max_label_num_after_reload.
201 Call life_analysis after reload_cse_regs if optimizing.
202 * config/gmicro/gmicro.h: Delete comment referring to
203 PRESERVE_DEATH_INFO_REGNO_P.
204 * config/i386/i386.h: Likewise.
205 * config/m88k/m88k.h: Likewise.
206 * config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
207 * config/sh/sh.h: Likewise.
209 Thu Oct 15 19:48:41 1998 David Edelsohn <edelsohn@mhpcc.edu>
211 * loop.c (strength_reduce): Restore marking bct_p as
212 ATTRIBUTE_UNUSED.
213 * rs6000.c (optimization_options): Change #ifdef HAIFA to
214 HAVE_decrement_and_branch_on_count.
215 (small_data_operand): Remove TARGET_ELF condition for marking
216 parameters ATTRIBUTE_UNUSED.
218 Thu Oct 15 11:45:51 1998 Robert Lipe <robertl@dgii.com>
220 * config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
221 (SELECT_SECTION): Resync with svr4.h.
223 Thu Oct 15 12:42:13 1998 David Edelsohn <edelsohn@mhpcc.edu>
225 * loop.c (strength_reduce): Undo Oct 14 change marking bct_p
226 ATTRIBUTE_UNUSED.
228 Thu Oct 15 00:57:55 1998 Robert Lipe <robertl@dgii.com>
230 * c-pragma.c (handle_pragma_token): Test for null tree before
231 dereferencing TREE_CODE.
233 Thu Oct 15 17:36:48 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
235 * config/c4x/c4x.c: Convert to use GEN_INT.
236 (c4x_parallel_process): Rework to handle new repeat loop structure.
238 * config/c4x/c4x.md: Convert to use GEN_INT.
239 (rptb_end): Convert to use GE test. Replace uses with clobbers.
240 (decrement_and_branch_on_count): Likewise.
242 * config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
243 loop.c has the desired functionality.
244 (rc_reg_operand): New prototype.
246 * config/c4x/t-c4x: Can now build all front ends.
248 Wed Oct 14 23:27:08 1998 Didier FORT (didier.fort@fedex.com)
250 * fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
252 Wed Oct 14 22:13:28 1998 Joel Sherrill (joel@OARcorp.com)
254 * Makefile.in (stmp-fixinc): Do not install assert.h if not desired.
255 * config/t-rtems: Do not install assert.h -- use newlib's.
257 Wed Oct 14 21:57:08 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
259 * combine.c (combine_instructions): When finished, call init_recog.
260 * regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
262 Wed Oct 14 16:10:22 1998 Per Bothner <bothner@cygnus.com>
264 * toplev.c: If flag_syntax_only, don't open or write assembler file.
266 Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
268 * cppalloc.c (memory_full): Mark function prototype with
269 ATTRIBUTE_NORETURN.
271 * demangle.h (collect_exit): Likewise.
273 * fix-header.c (v_fatal, fatal): Likewise.
275 * gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
276 Likewise.
278 * gcov.c (print_usage): Likewise.
280 * genattr.c (fatal, fancy_abort): Likewise.
282 * genattrtab.c (fatal, fancy_abort): Likewise.
284 * gencodes.c (fatal, fancy_abort): Likewise.
286 * genconfig.c (fatal, fancy_abort): Likewise.
288 * genemit.c (fatal, fancy_abort): Likewise.
290 * genextract.c (fatal, fancy_abort): Likewise.
292 * genflags.c (fatal, fancy_abort): Likewise.
294 * genopinit.c (fatal, fancy_abort): Likewise.
296 * genoutput.c (fatal, fancy_abort): Likewise.
298 * genpeep.c (fatal, fancy_abort): Likewise.
300 * genrecog.c (fatal, fancy_abort): Likewise.
302 * libgcc2.c (__eprintf, __default_terminate, __sjthrow,
303 __sjpopnthrow, __throw): Likewise.
305 * objc/objc-act.c (objc_fatal): Likewise.
307 * protoize.c (usage, aux_info_corrupted,
308 declare_source_confusing): Likewise.
310 * rtl.c (dump_and_abort): Likewise.
312 * rtl.h (sets_cc0_p): Likewise.
314 * toplev.c (float_signal, pipe_closed): Likewise.
316 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
318 * dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
319 when generating the decision tree for the general case.
321 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
322 wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
324 Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
326 * Makefile.in (sched.o): Depend on recog.h.
328 * alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
329 (unsigned) when comparing against one.
330 (find_base_value): Likewise.
331 (record_base_value): Cast variable `regno' to (unsigned) when
332 comparing against one. Cast the result of REGNO() macro to
333 (unsigned) when comparing against one.
334 (memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
335 unsigned.
336 (init_alias_analysis): Add unsigned variable `ui'. Use it as loop
337 variable where an unsigned index is needed.
339 * caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
340 before comparing against one.
342 * collect2.c: Add prototypes for functions `error', `fatal' and
343 `fatal_perror'. Make these functions take variable arguments
344 instead of faking it with a fixed number of args.
345 (write_c_file_stat): Cast the argument of ctype macro to (unsigned
346 char).
348 * combine.c (can_combine_p): Mark parameter `pred' with
349 ATTRIBUTE_UNUSED.
350 (find_split_point): Cast variable `src' to (unsigned
351 HOST_WIDE_INT) when comparing against one.
352 (simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
353 (simplify_logical): Likewise.
354 (force_to_mode): Cast result of INTVAL() macro to (unsigned
355 HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
356 HOST_WIDE_INT) in shift.
357 (simplify_and_const_int): Cast result of INTVAL() macro to
358 `unsigned HOST_WIDE_INT' when comparing against one.
359 (merge_outer_ops): Cast variable const0 to `unsigned
360 HOST_WIDE_INT' when comparing against the result of
361 GET_MODE_MASK() macro.
362 (simplify_comparison): Likewise for variable `c0'. Cast variable
363 `const_op' to `unsigned HOST_WIDE_INT' when comparing against
364 one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
365 result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
366 against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
367 result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
368 comparing against one.
369 (distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
371 config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
372 macro to `unsigned HOST_WIDE_INT' when comparing against one.
373 (output_block_move): Cast `sizeof' expression to (int) when
374 comparing against one.
375 (function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
376 against one.
377 (save_restore_insns): Cast `base_offset' to `long' to match format
378 specifier in fprintf.
380 * config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
381 to `enum machine_mode'.
383 * flow.c (life_analysis_1): Remove unused variable `insn'.
385 * gcc.c (translate_options): Move variables `j' and `k' into the
386 scope in which they are used. Change their types to `size_t'.
387 (set_spec): Cast the argument of ctype macro to `unsigned char'.
388 (read_specs): Likewise.
389 (process_command): Cast `sizeof' to (int) when comparing against one.
390 (do_spec_1): Cast the argument of ctype macro to `unsigned char'.
391 (handle_braces): Cast both sides of `==' expression to `long' to
392 ensure sign matching.
393 (main): Cast variable `i' to `int' when comparing against one.
395 * gcov-io.h (__fetch_long): Change type of parameter `bytes' from
396 int to size_t. Cast variable `i' to size_t when comparing against
397 one.
399 * genattrtab.c (convert_set_attr_alternative): Remove unused
400 parameter `insn_code'. All callers changed.
401 (convert_set_attr): Likewise.
403 * genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
404 size_t when comparing against one. Likewise for variable `len'.
406 * global.c (global_alloc): Cast variable `max_regno' to size_t
407 when comparing against one. Likewise for variable `max_allocno'.
409 * jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
411 * local-alloc.c (validate_equiv_mem_from_store): Mark parameter
412 `set' with ATTRIBUTE_UNUSED.
413 (find_free_reg): Cast `sizeof' expression to (int) when comparing
414 against one.
416 * loop.c (count_loop_regs_set): Remove unused variable `dest'.
417 (strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
418 (get_condition): Cast variable `const_val' to `unsigned
419 HOST_WIDE_INT' when comparing against one. Cast unsigned
420 expression to HOST_WIDE_INT when comparing against one.
421 (insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
422 (load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
423 `unsigned' when comparing against one.
425 * protoize.c (is_id_char): Change type of parameter `ch' to
426 unsigned char.
427 (munge_compile_params): Cast argument of ctype macro to (const
428 unsigned char).
429 (process_aux_info_file): Cast variable `aux_info_size' to int when
430 comparing against one.
431 (forward_to_next_token_char): Cast argument of ctype macro to
432 `const unsigned char'.
433 (edit_formals_lists): Likewise.
434 (find_rightmost_formals_list): Likewise.
435 (add_local_decl): Likewise.
436 (add_global_decls): Likewise.
437 (edit_fn_definition): Likewise.
438 (do_cleaning): Likewise.
439 (scan_for_missed_items): Likewise.
440 (edit_file): Cast variable `orig_size' to (int) when comparing
441 against one.
442 (main): Cast argument of ctype macro to `const unsigned char'.
444 * recog.c (const_int_operand): Mark parameter `mode' with
445 ATTRIBUTE_UNUSED.
447 * regclass.c (record_reg_classes): Change type of variable `c' to
448 `unsigned char'. Cast `char' array index to `unsigned char'.
450 * reload.c (push_secondary_reload): Cast argument to
451 REG_CLASS_FROM_LETTER() macro to `unsigned char'.
453 * reload1.c (calculate_needs): Cast `char' array index to
454 `unsigned char'.
455 (set_label_offsets): Change type of variable `i' to unsigned int.
456 Cast result of XVECLEN() macro to unsigned when comparing against
457 one.
458 (mark_not_eliminable): Change type of variable `i' to unsigned.
459 (order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
460 when comparing against one.
461 (reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
462 comparing against one.
463 (choose_reload_regs): Hide unused label `fail'.
464 (reload_cse_simplify_operands): Cast `char' array index to
465 `unsigned char'.
466 (reload_combine_note_store): Mark parameter `set' with
467 ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
468 against one.
469 (reload_cse_move2add): Remove unused variable `src2'.
471 * sched.c: Include recog.h.
472 (sched_note_set): Remove unused parameter `b'. All callers
473 changed.
474 (split_hard_reg_notes): Likewise for parameter `orig_insn'.
475 (blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
476 when comparing against one.
478 * stupid.c (stupid_find_reg): Mark parameter `changes_size' with
479 ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
480 comparing against one.
482 * unroll.c (precondition_loop_p): Remove unused parameter
483 `loop_end'. All callers changed.
485 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
487 * reload1.c (maybe_fix_stack_asms): New static function.
488 (reload): Call it.
490 * reload.h (compute_use_by_pseudos): Declare.
492 * reload1.c (spilled_pseudos, insns_need_reload): New variables.
493 (something_needs_reloads): Delete variable.
494 (finish_spills): New function.
495 (compute_use_by_pseudos): New function.
497 (delete_caller_save_insns): Lose argument FIRST. All callers changed.
498 Use the reload_insn_chain instead of walking the rtl directly.
500 (reload): Allocate and free spilled_pseudos.
501 Ensure that all calls of spill_hard_reg are followed by a call to
502 finish_spills.
503 Use the insns_need_reload list instead of something_needs_reloads
504 to find out if reload_as_needed must be called.
505 Clear unused_insn_chains at the end.
507 (calculate_needs_all_insns): Lose FIRST parameter. All callers
508 changed.
509 Delete code to keep track of current basic block.
510 Walk reload_insn_chain instead of the rtl structure. Build the
511 insns_need_reload chain.
512 Remember which insns need reloading/elimination by setting the
513 appropriate fields in struct insn_chain, not by putting modes on the
514 insn.
516 (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
517 arg INSN. All callers changed.
518 Delete declaration of struct needs.
519 Don't set something_needs_reloads.
520 Record insn needs in the CHAIN argument.
522 (spill_hard_reg): Record the affected pseudos in spilled_pseudos.
524 (reload_as_needed): Lose FIRST arg. All callers changed.
525 Walk the reload_insn_chain instead of the rtx structure.
526 Delete code to keep track of current basic block.
527 Rename one of the NEXT variables to OLD_NEXT.
529 (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
530 callers changed.
531 (choose_reload_regs): Likewise.
533 (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
534 callers changed.
536 * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
537 instead of (MOVE_MAX / UNITS_PER_WORD) computation.
538 (hard_regs_live, hard_regs_need_restore): Delete variables.
539 (n_regs_saved): Now static.
540 (referenced_regs, this_insn_sets): New variables.
542 (setup_save_areas): Restructure the code a bit.
544 (restore_referenced_regs): Delete function.
545 (mark_referenced_regs): New function, similar to the old
546 restore_referenced_regs, but mark registers in referenced_regs.
548 (clear_reg_live): Delete function.
549 (mark_set_regs): Renamed from set_reg_live. All callers changed.
550 Only mark registers in this_insn_sets.
552 (save_call_clobbered_regs): Rework this function to walk the
553 reload_insn_chain instead of using the list of instructions directly.
554 Delete code to keep track of register lives, compute live regs on the
555 fly from information in the chain.
556 Instead of calling restore_referenced_regs, use mark_referenced_regs,
557 then walk the set it computes and call insert_restore as appropriate.
559 (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
560 callers changed.
561 Restructure the code a bit. Test hard_regs_saved instead of
562 hard_regs_need_restore.
563 (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
564 args. All callers changed.
565 Restructure the code a bit. Use TO_SAVE to determine which regs to
566 save instead of more complicated test.
567 (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
568 callers changed.
569 Create a new insn_chain structure for the new insn and place it
570 into the chain.
572 * rtl.texi: Update documentation to reflect that reload no longer
573 puts modes on the insns.
575 1998-10-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
577 * function.c (purge_addressof_1): Force the first argument of a
578 CALL insn to memory.
580 Wed Oct 14 00:38:40 1998 Jeffrey A Law (law@cygnus.com)
582 * rtl.h: Delete duplicate prototypes. Add some missing
583 prototypes.
584 * rtlanal.c: (for_each_rtx): Formatting tweak.
586 1998-10-13 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
588 * real.c (emdnorm and etoasc): Disable round to even for c4x target
589 to be compatible with TI compiler.
591 * Makefile.in (USER_H): Add va-c4x.h to definition.
593 Tue Oct 13 23:03:37 1998 Richard Henderson <rth@cygnus.com>
595 * function.c (purge_addressof_1): Fix typo in inequality: do
596 bitfield optimization for equal mode sizes.
597 * expmed.c (store_bit_field): Don't take subregs of subregs in
598 the movstrict case. Tidy a potential problem in the multi-word case.
599 (extract_bit_field): Likewise.
601 Tue Oct 13 22:12:11 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
603 * flow.c (find_basic_blocks): Emit NOPs after normal calls in this
604 function.
605 Compute max_uid_for_flow by calling get_max_uid after the scan.
606 (find_basic_blocks_1): Don't emit NOPs here.
608 Tue Oct 13 22:05:49 1998 Richard Henderson <rth@cygnus.com>
610 * alias.c (base_alias_check): Accept new args for the modes of the
611 two references. Use them to determine if an AND can overlap. Update
612 all callers.
613 (memrefs_conflict_p): Assume sizes are aligned, and uses them
614 to determine if an AND can overlap.
616 Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com>
618 * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
619 check. Add comment to document problems with TARGET_SUN_FPA version
620 of this macro.
621 * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
623 Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
625 * Makefile.in (gencheck.o): Depend on gansidecl.h.
627 * c-common.c (print_char_table): Add missing initializers.
628 (scan_char_table): Likewise.
629 (time_char_table): Likewise.
631 * c-decl.c (c_decode_option): Mark parameter `argc' with
632 ATTRIBUTE_UNUSED.
633 (declare_parm_level): Mark parameter `definition_flag' with
634 ATTRIBUTE_UNUSED.
636 * c-lex.c (readescape): Use `(unsigned)1' in shift.
637 (yylex): Likewise. Cast `sizeof' to an (int) when comparing
638 against one.
640 * calls.c (store_one_arg): Remove unused parameter `fndecl'. All
641 callers changed.
642 (emit_call_1): Mark parameters `fndecl' and `funtype' with
643 ATTRIBUTE_UNUSED.
644 (expand_call): Cast result of MIN() to (unsigned int) when
645 comparing against an unsigned value.
647 * cccp.c (pcfinclude): Remove unused parameter `limit'. All
648 callers changed.
649 (make_definition): Remove unused parameter `op'. All callers
650 changed.
651 (create_definition): Cast REST_EXTENSION_LENGTH to (long) when
652 comparing against the result of pointer arithmetic.
654 * config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
655 when comparing against one.
657 * dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
658 HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
659 one.
660 (output_die): Move variable `i' into the scope in which it is
661 used. Change its type to `unsigned'.
662 (output_die): Cast the result of `strlen' to (int) when passing it
663 to ASM_OUTPUT_ASCII().
664 (output_pubnames): Likewise.
665 (output_line_info): Likewise.
667 * emit-rtl.c (global_rtl): Add missing initializers.
669 * explow.c (promote_mode): Mark parameter `for_call' with
670 ATTRIBUTE_UNUSED.
672 * expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
673 `unsigned HOST_WIDE_INT' when comparing against one.
674 (synth_mult): Change type of variable `cost' to int.
675 (emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
677 * expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
678 when comparing against one.
679 (get_inner_reference): Change variable `alignment' to unsigned.
680 (expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
681 int) when comparing against one.
682 (expand_builtin_setjmp): Change type of variable `i' to size_t.
684 * fold-const.c (div_and_round_double): Cast BASE to
685 (HOST_WIDE_INT) when comparing against one.
687 * gencheck.c: Include gansidecl.h.
688 (main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
690 * optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
691 `tcode' with ATTRIBUTE_UNUSED.
693 * real.c (edivm): Cast constant value to (unsigned long) in
694 expression compared against an unsigned value.
696 * stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
697 comparing against one.
698 (expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
699 when comparing against one.
701 * stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
702 (unsigned int) when comparing against one. Likewise for
703 GET_MODE_BITSIZE.
704 (smallest_mode_for_size): Likewise.
705 (save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
706 (restore_storage_status): Likewise.
708 * toplev.c (debug_args): Add missing initializer.
709 (f_options): Spelling correction. Add missing initializers.
710 (documented_lang_options): Likewise.
711 (debug_end_source_file): Mark parameter `lineno' with
712 ATTRIBUTE_UNUSED.
714 * tree.c (valid_machine_attribute): Mark parameters `attr_args',
715 `decl' and `type' with ATTRIBUTE_UNUSED.
717 * varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
718 when comparing against one.
719 (assemble_variable): Mark parameter `top_level' with
720 ATTRIBUTE_UNUSED.
721 (assemble_external_libcall): Mark parameter `fun' with
722 ATTRIBUTE_UNUSED.
723 (output_constant_pool): Mark parameters `fnname' and `fndecl' with
724 ATTRIBUTE_UNUSED.
726 Tue Oct 13 12:51:04 1998 Nick Clifton <nickc@cygnus.com>
728 * config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
729 Replace use of r5 with use of r19.
731 * config/v850/v850.h (LINK_POINTER_REGNUM): Define.
733 * config/v850/v850.c (compute_register_save_size): Allow for the
734 fact that helper functions save all registers, not just those used
735 by the function.
737 Replace constant 31 with macro LINK_POINTER_REGNUM.
739 * config/v850/v850.md: Use 'indirect_operand' rather than
740 'memory_operand' for bit test/set/clear patterns.
742 Tue Oct 13 11:49:14 1998 Jason Merrill <jason@yorick.cygnus.com>
744 * mips/iris6.h (ASM_OUTPUT_WEAK_ALIAS): Call ASM_GLOBALIZE_LABEL.
745 * varasm.c (assemble_start_function et al): Don't call
746 ASM_GLOBALIZE_LABEL for weak symbols.
748 Tue Oct 13 11:37:45 1998 Nick Clifton <nickc@cygnus.com>
750 * cse.c (equiv_constant): Check for NULL return from
751 gen_lowpart_if_possible().
753 Tue Oct 13 11:24:51 1998 Jeffrey A Law (law@cygnus.com)
755 * mn10200.md (addsi3, subsi3, negsi2): Only allow register operands.
757 * collect2.c (main): Pass -EL/-EB through to the compiler.
759 1998-10-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
761 * expr.c (push_block): Handle targets where the stack grows
762 to higher addresses, but args grow to lower addresses and
763 ACCUMULATE_OUTGOING_ARGS is not defined.
765 Tue Oct 13 08:00:52 1998 Catherine Moore <clm@cygnus.com>
767 * config/v850/v850.c (print_operand): Extend meaning
768 of 'c' operands to support .vtinherit.
770 Tue Oct 13 21:38:35 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
772 * config/c4x/c4x.c: Convert to gen_rtx_FOO.
773 Added ATTRIBUTE_UNUSED to unused function arguments.
774 (rc_reg_operand): New predicate.
775 (c4x_rptb_insert): New function.
776 (c4x_rptb_nop_p): Recognize modified rptb_top pattern.
777 (c4x_optimization_options): New function.
779 * config/c4x/c4x.md: Convert to gen_rtx_FOO.
780 (decrement_and_branch_on_count): New pattern.
781 (rptb_top): Modified pattern to work with BCT optimization.
783 * config/c4x/c4x.h (RC_REG): New register class.
784 (rc_reg_operand): Define prototype.
785 (IS_RC_REG): New macro.
786 (IS_RC_OR_PSEUDO_REG): New macro.
787 (IS_RC_OR_PSEUDO_REGNO): New macro.
788 (OPTIMIZATION_OPTIONS): Define.
790 Mon Oct 12 19:57:34 1998 Jason Merrill <jason@yorick.cygnus.com>
792 * collect2.c (extract_init_priority): No priority is 65535.
794 Mon Oct 12 12:10:37 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
796 * Makefile.in (build_tooldir): new variable, same as old
797 $(tooldir), but without depending on $(libdir)/$(unlibsubdir)
798 (GCC_FOR_TARGET): add -B$(build_tooldir)/bin/
799 (bootstrap, bootstrap2, bootstrap3, bootstrap4): ditto
801 * configure.in (gxx_include_dir): set default based on unlibsubdir
802 * Makefile.in (tooldir): ditto
803 (cccp.o, cpplib.o): use unlibsubdir implicitly through
804 gxx_include_dir, includedir and tooldir
805 (protoize.o, unprotoize.o): ditto
807 Mon Oct 12 10:50:44 1998 Nick Clifton <nickc@cygnus.com>
809 * config/arm/arm.md: Replace (reg 24) with (reg:CC 24).
811 * config/arm/thumb.c (thumb_override_options): Add warning about
812 PIC code not being supported just yet.
814 Sun Oct 11 16:49:15 EDT 1998 John Wehle (john@feith.com)
816 * flow.c: Update comment.
817 (notice_stack_pointer_modification): New static function.
818 (record_volatile_insns): Use it.
819 (mark_regs_live_at_end): Mark the stack pointer as alive
820 at the end of the function if current_function_sp_is_unchanging
821 is set.
822 (life_analysis_1): Set current_function_sp_is_unchanging.
823 * function.c: Define it.
824 (init_function_start): Initialize it.
825 * output.h: Declare it.
826 * reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
827 the stack pointer as alive at the end of the function if
828 current_function_sp_is_unchanging is set.
829 * i386.c (ix86_epilogue): Optimize the restoring
830 of the stack pointer.
832 Mon Oct 12 01:22:53 PDT 1998 Jeff Law (law@cygnus.com)
834 * version.c: Bump for snapshot.
836 Sun Oct 11 23:04:30 1998 Robert Lipe <robertl@dgii.com>
838 * c-pragma.c (handle_pragma_token): If passed a token instead
839 of a tree, use that as the pack value.
841 Sun Oct 11 14:21:14 1998 Mark Mitchell <mark@markmitchell.com>
843 * flow.c (find_basic_blocks_1): Fix prototype.
845 Sun Oct 11 05:03:41 1998 Ken Raeburn <raeburn@cygnus.com>
847 * tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
848 (struct tree_decl): New fields no_check_memory_usage.
849 * c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
850 (init_attributes): Register it as a new attribute.
851 (decl_attributes): Set flags on functions given that attribute.
852 * c-decl.c (duplicate_decls): Merge new attribute.
853 * expr.h (current_function_check_memory_usage): Declare new var.
854 * calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
855 pa.c, sparc.c: Replace uses of flag_check_memory_usage with
856 current_function_check_memory_usage.
857 * function.h: Add field to struct function.
858 * function.c (current_function_check_memory_usage): Define it.
859 (push_function_context_to, pop_function_context_from): Save and
860 restore it.
861 (expand_function_start): Set it, based on global flag and function
862 attribute.
864 * expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
865 check non-automatic variables, to permit detection of writes to
866 read-only locations in embedded systems without memory management.
867 * calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
868 when emitting chkr_set_right_libfunc call, even if the argument is
869 BLKmode or variable-sized; don't abort.
871 * optabs.c (init_optabs): Create Checker and __cyg_profile_*
872 symbols in Pmode, not VOIDmode.
874 Sun Oct 11 01:03:05 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
876 * cppexp.c: When forcing unsigned comparisons, cast both sides
877 of the operation.
879 * cpphash.h: Move static declaration of hashtab[]...
880 * cpphash.c: ...here.
882 * cpplib.c: Cast difference of two pointers to size_t before
883 comparing it to size_t. Cast signed to unsigned
884 before comparing to size_t. (FIXME: struct argdata should use
885 unsigned buffer sizes.)
886 * cpplib.h (struct cpp_reader): Declare token_buffer_size as
887 unsigned int. (CPP_WRITTEN): Cast return value to size_t.
888 (CPP_RESERVE): Parenthesize N for evaluation order, cast to
889 size_t before comparison.
891 Sun Oct 11 00:15:29 1998 Jeffrey A Law (law@cygnus.com)
893 * flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
894 (find_basic_blocks_1): Similarly.
895 * output.h (find_basic_blocks): Fix prototype.
896 * gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
897 find_basic_blocks anymore.
899 Sat Oct 10 22:00:34 1998 Richard Henderson <rth@cygnus.com>
901 * basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
902 (sbitmap_free, sbitmap_vector_free): New macros.
903 * output.h (rtl_dump_file): Declare.
905 Sat Oct 10 17:01:42 1998 Jeffrey A Law (law@cygnus.com)
907 * regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
909 Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
911 * fp-bit.c (SFtype): Don't implicitly use int in declaration.
912 (DFtype): Likewise.
913 (_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
914 (divide): Remove unused variable `tmp'.
915 (si_to_float): Cast numeric constant to (SItype) before comparing
916 it against one.
918 Fri Oct 9 16:03:19 1998 Graham <grahams@rcp.co.uk>
920 * flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
921 * gcc.c (add_preprocessor_option): Correct typo when allocating
922 memory, sizeof() argument had one too many `*'.
923 (add_assembler_option): Likewise.
924 (add_linker_option): Likewise.
925 * gcov.c (output_data): Likewise.
926 * local-alloc.c (memref_used_between_p): Likewise.
927 (update_equiv_regs): Likewise.
928 * loop.c (strength_reduce): Likewise.
929 * reg-stack.c (record_asm_reg_life): Likewise.
930 (subst_asm_stack_reg): Likewise.
931 * reorg.c (dbr_schedule): Likewise.
933 Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
935 * flow.c (life_analysis_1): Break out some functions.
936 (find_basic_blocks_1): Likewise. Also move some variables out and
937 make them static.
938 Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
939 new static var nonlocal_label_list with it.
940 (active_eh_region, nested_eh_region, label_value_list,
941 nonlocal_label_list): New static variables.
942 (make_edges, delete_unreachable_blocks, delete_block): New static
943 functions, broken out of find_basic_blocks_1.
944 (record_volatile_insns, mark_regs_live_at_end, set_noop_p,
945 noop_move_p): New static functions, broken out of life_analysis_1.
947 Fri Oct 9 15:49:29 1998 Richard Henderson <rth@cygnus.com>
949 * expmed.c (store_bit_field): Pun non-integral str_rtx modes.
950 Take extra care for op0 now possibly being a subreg.
951 (extract_bit_field): Likewise.
952 * function.c (purge_addressof_1): Revert Oct 4 change. Drop
953 the reg to memory if there is no equal sized integral mode.
954 * stor-layout.c (int_mode_for_mode): New function.
955 * machmode.h: Prototype it.
957 Fri Oct 9 14:26:44 1998 Jeffrey A Law (law@cygnus.com)
959 * global.c (build_insn_chain): Verify no real insns exist past the
960 end of the last basic block, then exit the loop.
962 Fri Oct 9 11:44:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
964 * loop.c (insert_bct): Ensure loop_iteration_var non-zero before use.
966 Thu Oct 8 21:59:47 1998 Dave Brolley <brolley@cygnus.com>
968 * emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
970 Thu Oct 8 22:03:45 1998 David Edelsohn <edelsohn@mhpcc.edu>
972 * rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
974 Thu Oct 8 17:00:18 1998 Richard Henderson <rth@cygnus.com>
976 * flow.c (find_basic_blocks): Correctly determine when a call
977 is within an exception region.
979 Thu Oct 8 17:15:04 1998 Jeffrey A Law (law@cygnus.com)
981 * toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
983 * cpplib.h: Protect from multiple inclusions.
984 * cpplib.c: Fix minor formatting problems.
986 * i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
988 * jump.c (jump_optimize): Revert accidental patch.
990 * Makefile.in (cpplib.o): Use unlibsubdir.
992 Thu Oct 8 12:50:47 1998 Jim Wilson <wilson@cygnus.com>
994 * loop.c (get_condition): Allow combine when either compare is
995 VOIDmode.
997 Thu Oct 8 11:31:01 PDT 1998 Jeff Law (law@cygnus.com)
999 * version.c: Bump for snapshot.
1001 Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <richard@brainstorm.co.uk>
1003 * c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
1004 (init_lex): Initialize ridpointers[RID_BYREF].
1005 * c-lex.h (enum rid): Add RID_BYREF.
1006 * c-parse.gperf: Add RID_BYREF as a type qualifier.
1007 * objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
1008 (encode_type_qualifiers): Similarly
1009 * c-gperf.h: Rebuilt.
1011 Thu Oct 8 05:56:00 1998 Jeffrey A Law (law@cygnus.com)
1013 * c-common.c (type_for_mode): Only return TItype nodes when
1014 HOST_BITS_PER_WIDE_INT is >= 64 bits.
1015 * c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
1016 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
1017 (init_decl_processing): Only create TItype nodes when
1018 HOST_BITS_PER_WIDE_INT is >= 64 bits.
1019 * c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
1020 when HOST_BITS_PER_WIDE_INT is >= 64 bits.
1022 Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1024 * stmt.c (n_occurrences): New static function.
1025 (expand_asm_operands): Verify that all constrains match in the
1026 number of alternatives.
1027 Verify that '+' or '=' are at the beginning of an output constraint.
1028 Don't allow '&' for input operands.
1029 Verify that '%' isn't written for the last operand.
1030 * reload.c (find_reloads): Abort if an asm is found with invalid
1031 constraints; all possible problems ought to be checked for earlier.
1033 Thu Oct 8 04:26:20 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1035 * flags.h (flag_branch_on_count_reg): Always declare
1036 * toplev.c (flag_branch_on_count_reg): Likewise.
1037 * toplev.c: Fix typos.
1039 * real.c (c4xtoe): Remove unused variables. Add some missing parens.
1040 (toc4x): Similarly.
1042 Thu Oct 8 01:25:22 1998 Richard Henderson <rth@cygnus.com>
1044 * flow.c (find_basic_blocks): Calc upper bound for extra nops in
1045 max_uids_for_flow.
1046 (find_basic_blocks_1): Add a nop to the end of a basic block when
1047 a trailing call insn does not have abnormal control flow.
1048 * gcse.c (pre_transpout): New variable.
1049 (alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
1050 (compute_pre_transpout): Calculate it.
1051 (compute_pre_ppinout): Use it to eliminate impossible placements
1052 due to abnormal control flow through calls.
1053 (compute_pre_data): Call compute_pre_transpout.
1055 Wed Oct 7 21:40:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1057 * config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
1059 Wed Oct 7 21:19:46 1998 Ken Raeburn <raeburn@cygnus.com>
1061 * config/mips/mips.md (tablejump_internal3, tablejump_internal4
1062 and matching define_insns): Tack on a `use' of the table label, so
1063 flow analysis will recognize a tablejump.
1065 Wed Oct 7 17:33:39 1998 Richard Henderson <rth@cygnus.com>
1067 * gcse.c (pre_insert_insn): Tweek to notice that calls do not
1068 always end basic blocks for abnormal edge reasons.
1070 Wed Oct 7 14:40:43 1998 Nick Clifton <nickc@cygnus.com>
1072 * config/i386/i386.h: Remove definition of
1073 HANDLE_PRAGMA_PACK_PUSH_POP.
1075 * config/i386/go32.h: Add definition of
1076 HANDLE_PRAGMA_PACK_PUSH_POP.
1078 * config/i386/win32.h: Add definition of
1079 HANDLE_PRAGMA_PACK_PUSH_POP.
1081 * config/i386/cygwin32.h: Add definition of
1082 HANDLE_PRAGMA_PACK_PUSH_POP.
1084 * c-pragma.c (insert_pack_attributes): Do not insert
1085 attributes unless #pragma pack(push,<n>) is in effect.
1087 Wed Oct 7 12:10:46 1998 Jim Wilson <wilson@cygnus.com>
1089 * expr.c (emit_group_store): Handle a PARALLEL destination.
1091 Wed Oct 7 10:07:29 1998 Richard Henderson <rth@cygnus.com>
1093 * gcse.c (pre_insert_insn): When a call ends a bb, insert
1094 the new insns before the argument regs are loaded.
1096 Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1098 * Makefile.in (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
1099 (c-parse.gperf): Update comments describing invocation flags.
1100 (c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
1102 1998-10-07 Manfred Hollstein <manfred@s-direktnet.de>
1104 * reload1.c (reload): Call free before clobbering the memory
1105 locations or constants pointers.
1107 Wed Oct 7 02:05:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1109 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
1110 for efficiency by checking whether we need to modify the current
1111 stack permission at all.
1112 (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Define.
1113 * config/sparc/sparc.c (sparc_initialize_trampoline): Emit
1114 __enable_execute_stack libcall here too if
1115 TRANSFER_FROM_TRAMPOLINE is defined.
1116 * config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
1117 IN_LIBGCC2.
1119 Wed Oct 7 02:27:52 1998 Jeffrey A Law (law@cygnus.com)
1121 * Makefile.in (DRIVER_DEFINES): Remove last change.
1123 Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1125 * jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
1126 insns we're going to copy.
1127 * regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
1129 * loop.c (count_one_set): Add prototype.
1131 * caller-save.c (restore_referenced_regs): Lose mode argument.
1132 (insert_save): Lose mode argument.
1133 (insert_restore): Lose mode argument.
1134 (insert_one_insn): Lose mode argument.
1135 (save_call_clobbered_regs): Lose mode argument.
1136 (setup_save_areas): Take no argument and return void. All callers
1137 changed.
1138 Don't verify validity of memory addresses.
1139 * reload.h (setup_save_ares): Adjust prototype.
1140 (save_call_clobbered_regs): Likewise.
1141 * reload1.c (delete_caller_save_insns): New function.
1142 (caller_save_spill_class): Delete variable.
1143 (caller_save_group_size): Delete variable.
1144 (reload): Call setup_save_areas and save_call_clobbered_regs
1145 in the main loop, before calling calculate_needs_all_insns.
1146 Don't call save_call_clobbered_regs after the loop.
1147 Call delete_caller_save_insns at the end of an iteration if
1148 something changed.
1149 Delete code to manage caller_save_spill_class.
1150 Emit the final note before setting reload_first_uid.
1151 Simplify test that determines whether reload_as_needed gets run.
1152 (calculate_needs): Delete code to manage caller_save_spill_class.
1154 Tue Oct 6 15:42:27 1998 Richard Henderson <rth@cygnus.com>
1156 * collect2.c (main): Initialize ld_file_name.
1158 Tue Oct 6 15:45:15 1998 Catherine Moore <clm@cygnus.com>
1160 * config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
1161 check for flag_function_sections.
1163 Tue Oct 6 20:02:31 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1165 * cse.c (insert_regs): Fix bug in Sep 24 change.
1167 Tue Oct 6 17:00:42 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1169 * flags.h (flag_dump_unnumbered): Declare.
1170 * toplev.c (flag_dump_unnumbered): Don't declare.
1171 * print-rtl.c (flags.h): Include.
1172 (print_rtl_single): Add return value.
1173 * rtl.h (print_rtl_single): Update declaration.
1174 * flow.c (flag_dump_unnumbered): Don't declare.
1175 (print_rtl_with_bb): Use return value of print_rtl_single.
1177 Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1179 * loop.c (count_one_set): New static function, broken out of
1180 count_loop_regs_set
1181 (count_loop_regs_set): Call it.
1182 * global.c (mark_reg_store): Handle clobbers here by not calling
1183 set_preference.
1184 (mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
1185 is in fact a clobber.
1186 * integrate.c (process_reg_param): New function, broken out of
1187 expand_inline_function.
1188 (expand_inline_function): Call it.
1191 * i386.md (addsidi3_1): Delete unused variable temp.
1192 (addsidi3_2): Likewise.
1193 (clstrstrsi): Delete unused variable addr1.
1195 * rtl.h: Don't declare any functions also declared in recog.h.
1197 * Makefile.in (stupid.o): Update dependencies.
1198 (global.o): Likewise.
1200 * global.c: Include reload.h
1201 (reg_becomes_live): New function.
1202 (reg_dies): New function.
1203 (build_insn_chain): New function.
1204 (global_alloc): Call build_insn_chain before calling reload.
1206 * reload.h (struct needs): New structure definition.
1207 (struct insn_chain): Likewise.
1208 (reload_insn_chain): Declare variable.
1209 (new_insn_chain): Declare function.
1212 * reload1.c (reload_startobj): New variable.
1213 (reload_insn_chain): New variable.
1214 (unused_insn_chains): New variable.
1215 (new_insn_chain): New function.
1216 (init_reload): Initialize reload_startobj, not reload_firstobj.
1217 (reload): Initialize reload_firstobj.
1218 Before returning, free everything on the reload_obstack.
1220 * stupid.c: Include insn-config.h, reload.h and basic-block.h.
1221 (reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
1222 current_chain): New variables.
1223 (reg_where_born): Delete variable.
1224 (REG_WHERE_BORN): New macro.
1225 (find_clobbered_regs): New function.
1226 (stupid_life_analysis): Don't allocate/free reg_where_born.
1227 Allocate and free reg_where_born_exact, reg_where_born_clobber,
1228 reg_where_dead_chain.
1229 Use REG_WHERE_BORN instead of reg_where_born.
1230 While processing the insns, build the reload_insn_chain with
1231 information about register lifetimes.
1232 (stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
1233 (stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
1234 changed.
1235 Compute and information about birth and death of pseudo registers in
1236 reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
1237 Delete code to set elements of reg_where_born.
1239 Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
1241 * tree.def (GOTO_EXPR): Modified documentation.
1242 * expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
1243 goto.
1245 Mon Oct 5 22:43:36 1998 David Edelsohn <edelsohn@mhpcc.edu>
1247 * unroll.c (loop_iteration_var, loop_initial_value, loop_increment
1248 loop_final_value, loop_comparison_code): No longer static.
1249 (unroll_loop): Delete loop_start_value update.
1250 * loop.h (loop_iteration_var, loop_initial_value, loop_increment,
1251 loop_final_value, loop_comparison_code): Extern.
1252 (loop_start_value): Delete extern.
1253 * loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
1254 loop_comparison_value, loop_comparison_code): Delete.
1255 (loop_optimize): Remove initialization for deleted variables.
1256 (strength_reduce): Delete analyze_loop_iterations call. Only call
1257 insert_bct if flag_branch_count_on_reg set.
1258 (analyze_loop_iterations): Delete.
1259 (insert_bct): Remove iteration count calculation. Move checks for
1260 viable BCT optimization to here. Obtain iteration count from
1261 loop_iterations and correct for unrolling. Check for enough
1262 iteration to be beneficial. Comment out runtime iteration count
1263 case.
1264 (insert_bct): Print iteration count in dump file. Remove
1265 loop_var_mode and use word_mode directly.
1267 * rs6000.h (processor_type): Add PROCESSOR_PPC604e.
1268 * rs6000.c (rs6000_override_options): Use it.
1269 (optimization_options): Enable use of flag_branch_on_count_reg.
1270 * rs6000.md (define_function_unit): Describe 604e.
1272 1998-10-05 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1274 * loop.c (move_movables): Corrected threshold calculation for
1275 moved_once registers.
1277 Mon Oct 5 21:18:45 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1279 * loop.c (combine_givs_p): Fix test for identical givs.
1281 Mon Oct 5 10:11:28 1998 Nick Clifton <nickc@cygnus.com>
1283 * dwarf2out.c (gen_subprogram_die): If errorcount nonzero, don't
1284 call abort if the function is already defined.
1286 Mon Oct 5 10:02:36 1998 Jeffrey A Law (law@cygnus.com)
1288 * combine.c (simplify_rtx): Do not replace TRUNCATE with a SUBREG if
1289 truncation is not a no-op.
1291 Mon Oct 5 09:02:04 PDT 1998 Jeff Law (law@cygnus.com)
1293 * version.c: Bump for snapshot.
1295 Mon Oct 5 08:19:55 PDT 1998 Jeff Law (law@cygnus.com)
1297 * version.c: Bump for snapshot.
1299 Mon Oct 5 01:07:23 1998 Torbjorn Granlund <tege@matematik.su.se>
1301 * expmed.c (expand_divmod): Don't widen for computing remainder
1302 if we seem to have a divmod pattern for needed mode.
1304 Mon Oct 5 01:01:42 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1306 * cpplib.c (macroexpand): Correct off-by-one error in handling
1307 of escapes.
1309 Sun Oct 4 23:58:30 1998 Richard Henderson <rth@cygnus.com>
1311 * combine.c (expand_field_assignment): Don't do bitwise operations
1312 on MODE_FLOAT; pun to MODE_INT if possible.
1314 Sun Oct 4 18:33:24 1998 Jason Merrill <jason@yorick.cygnus.com>
1315 scott snyder <snyder@d0sgif.fnal.gov>
1317 * tlink.c (scan_linker_output): Recognize errors from irix 6.2
1318 linker. Recognize mangled names in quotes.
1320 Sun Oct 4 02:58:20 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
1322 * config/sparc/sparc.md (ashldi3+1): Name it ashldi3_sp64.
1323 (ashlsi3_const1, ashldi3_const1): New combiner patterns.
1324 (ashrsi3_extend, ashrsi3_extend2): New combiner patterns.
1325 (lshrsi3_extend, lshrsi3_extend2): Ditto.
1327 Sun Oct 4 00:23:00 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1329 * function.c (purge_addressof_1): If trying to take a sub-word
1330 integral piece of a floating point mode, put it on the stack.
1332 Sat Oct 3 19:01:03 1998 Richard Henderson <rth@cygnus.com>
1334 * alpha/linux.h (CPP_PREDEFINES): Define __alpha__ for imake.
1336 Sat Oct 3 14:42:19 1998 Jason Merrill <jason@yorick.cygnus.com>
1338 * PROJECTS: Remove template friends.
1340 * collect2.c (sort_ids): Remove unused variable.
1342 * tm.texi (MATH_LIBRARY): Document.
1343 (NEED_MATH_LIBRARY): Remove.
1345 * varasm.c (assemble_start_function, assemble_variable, weak_finish,
1346 assemble_alias): Do ASM_GLOBALIZE_LABEL for weak symbols, too.
1348 Sat Oct 3 16:14:44 1998 John Carr <jfc@mit.edu>
1350 * dwarf2out.c (expand_builtin_dwarf_reg_size): Initialize
1351 last_end to 0x7fffffff.
1353 Fri Oct 2 19:14:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1355 * function.c (purge_addressof_1): Do not perform endianness
1356 corrections on bitpos, who we call will do it for us.
1358 Fri Oct 2 11:52:35 1998 Jeffrey A Law (law@cygnus.com)
1360 * h8300.c (WORD_REG_USED): Fix typo.
1361 (initial_offset): Use WORD_REG_USED.
1363 * h8300.c (handle_pragma): Fix typo.
1365 Fri Oct 2 10:51:35 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1367 * caller-save.c (insert_save_restore): Break this function up
1368 into new functions insert_restore, insert_save and insert_one_insn.
1369 All callers changed.
1370 (insert_restore): New function, mostly broken out of
1371 insert_save_restore.
1372 (insert_save): Likewise.
1373 (insert_one_insn): Likewise.
1374 (restore_referenced_regs): New argument BLOCK. All callers changed.
1375 (save_call_clobbered_regs): Don't keep track of basic block boundaries
1376 in this function, do it in insert_one_insn instead.
1378 * reload1.c (reload): Break out some more pieces into separate
1379 functions.
1380 (dump_needs): New function, broken out of reload.
1381 (set_initial_elim_offsets): Likewise.
1382 (init_elim_table): Likewise.
1383 (update_eliminables): Likewise.
1385 * global.c (global_alloc): Delete code to manage the scratch_list.
1386 * local-alloc.c (qty_scratch_rtx): Delete.
1387 (scratch_block): Delete.
1388 (scratch_list): Delete.
1389 (scratch_list_length): Delete.
1390 (scratch_index): Delete.
1391 (alloc_qty_for_scratch): Delete.
1392 (local-alloc): Update initialization of max_qty.
1393 Delete code to manage the scratch list.
1394 Delete code to allocate/initialize qty_scratch_rtx.
1395 (block_alloc): Don't allocate quantities for scratches.
1396 Delete code to manage the scratch list.
1397 * regs.h (scratch_list): Delete declaration.
1398 (scratch_block): Delete declaration.
1399 (scratch_list_length): Delete declaration.
1400 * reload1.c (reload): Delete code to manage the scratch list.
1401 (spill_hard_reg): Likewise.
1402 (mark_scratch_live): Delete.
1404 * recog.c (alter_subreg): Delete declaration.
1406 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
1408 * Makefile.in (cccp.o): Fix typo in last patch.
1410 Fri Oct 2 16:13:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1412 * t-sh (LIB1ASMFUNCS): Add _set_fpscr .
1413 * config/sh/lib1funcs.asm (___set_fpscr): Add.
1415 Fri Oct 2 02:01:59 1998 Jeffrey A Law (law@cygnus.com)
1417 * regclass.c (reg_scan_mark_refs): Return immediately if passed a
1418 NULL_RTX as an argument.
1420 * Makefile.in (unlibsubdir): Define.
1421 (DRIVER_DEFINES): Use unlibsubdir.
1422 (cccp.o, cpplib.o, protoize.o, unprotoize.o): Similarly.
1423 (stmp-fixinc): Similarly.
1425 Thu Oct 1 19:58:30 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
1427 * regmove.c (regmove_optimize): Add variable old_max_uid.
1428 At the end of the function, update basic_block_end.
1430 Thu Oct 1 17:58:25 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1432 * dwarf2out.c (expand_builtin_dwarf_reg_size): Use
1433 FIRST_PSEUDO_REGISTER as upper bound for last_end, not an
1434 arbitrary constant.
1436 Thu Oct 1 17:57:14 1998 Nick Clifton <nickc@cygnus.com>
1438 * config/arm/arm.c: Improve interworking support.
1440 Thu Oct 1 18:43:35 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1442 * reload1.c (choose_reload_regs): Fix test if reload_reg_rtx[r] was
1443 copied from reload_out[r] .
1445 Thu Oct 1 19:20:09 1998 John Carr <jfc@mit.edu>
1447 * dwarf2out.c (expand_builtin_dwarf_reg_size): Fix to work
1448 with more than three size ranges.
1450 * flow.c (sbitmap_copy): Use bcopy to copy bitmap.
1452 * rtl.c (mode_name): Add a null string at the end of the array.
1453 (mode_wider_mode): Change type to unsigned char.
1454 (mode_mask_array): New variable.
1455 (init_rtl): Update for mode_wider_mode type change.
1457 * rtl.h (mode_wider_mode): Change type to unsigned char.
1458 (mode_mask_array): Declare.
1459 (GET_MODE_MASK): Use mode_mask_array.
1461 Thu Oct 1 15:56:01 1998 Gavin Romig-Koch <gavin@cygnus.com>
1463 * calls.c (expand_call) : Encapsulate code into
1464 copy_blkmode_from_reg.
1465 * expr.c (copy_blkmode_from_reg): New function.
1466 * expr.h (copy_blkmode_from_reg): New function.
1467 * integrate.c (function_cannot_inline_p): We can inline
1468 these now.
1469 (expand_inline_function): Use copy_blkmode_from_reg
1470 if needed. Avoid creating BLKmode REGs.
1471 (copy_rtx_and_substitute): Don't try to SUBREG a BLKmode
1472 object.
1474 Thu Oct 1 10:42:27 1998 Nick Clifton <nickc@cygnus.com>
1476 * config/v850/v850.c: Add function prototypes.
1477 Add support for v850 special data areas.
1479 * config/v850/v850.h: Add support for v850 special data areas.
1481 * c-pragma.c: Add support for HANDLE_PRAGMA_PACK and
1482 HANDLE_PRAGMA_PACK_PUSH_POP.
1483 (push_alignment): New function: Cache an alignment requested
1484 by a #pragma pack(push,<n>).
1485 (pop_alignment): New function: Pop an alignment from the
1486 alignment stack.
1487 (insert_pack_attributes): New function: Generate __packed__
1488 and __aligned__ attributes for new decls whilst a #pragma pack
1489 is in effect.
1490 (add_weak): New function: Cache a #pragma weak directive.
1491 (handle_pragma_token): Document calling conventions. Add
1492 support for #pragma pack(push,<n>) and #pragma pack (pop).
1494 * c-pragma.h: If HANDLE_SYSV_PRAGMA or HANDLE_PRAGMA_PACK_PUSH_POP
1495 are defined enable HANDLE_PRAGMA_PACK.
1496 Move 'struct weak_syms' here (from varasm.c).
1497 Add pragma states for push and pop pragmas.
1499 * c-common.c (decl_attributes): Call PRAGMA_INSERT_ATTRIBUTES
1500 if it is defined.
1502 * c-lex.c: Replace occurances of HANDLE_SYSV_PRAGMA with
1503 HANDLE_GENERIC_PRAGMAS.
1505 * varasm.c: Move definition of 'struct weak_syms' into
1506 c-pragma.h.
1507 (handle_pragma_weak): Deleted.
1509 * config/i386/i386.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
1511 * config/winnt/win-nt.h: Define HANDLE_PRAGMA_PACK_PUSH_POP.
1513 * c-decl.c (start_function): Add invocation of
1514 SET_DEFAULT_DECL_ATTRIBUTES, if defined.
1516 * tm.texi: Remove description of non-existant macro
1517 SET_DEFAULT_SECTION_NAME.
1519 (HANDLE_SYSV_PRAGMA): Document.
1520 (HANDLE_PRAGMA_PACK_PUSH_POP): Document.
1522 Wed Sep 30 22:27:53 1998 Robert Lipe <robertl@dgii.com>
1524 * config.sub: Recognize i[34567]86-pc-udk as new target.
1525 * configure.in: Likewise.
1526 * config/i386/t-udk: New file.
1527 * config/i386/udk.h: New file.
1529 Wed Sep 30 19:33:07 1998 Jeffrey A Law (law@cygnus.com)
1531 * reorg.c (check_annul_list_true_false): Remove unused variables.
1532 (steal_delay_list_from_target): Add missing "used_annul" variable.
1533 (try_merge_delay_insns): Close out half formed comment.
1535 Wed Sep 30 19:13:20 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1537 * cpplib.c (macroexpand): If arg->raw_before or
1538 arg->raw_after, remove any no-reexpansion escape at the
1539 beginning of the pasted token. Correct handling of whitespace
1540 markers and no-reexpand markers at the end if arg->raw_after.
1542 * toplev.c (documented_lang_options): Recognize -include,
1543 -imacros, -iwithprefix, -iwithprefixbefore.
1544 * cpplib.c (cpp_start_read): Process -imacros and -include
1545 switches at the same time and in command-line order, after
1546 initializing the dependency-output code. Emit properly nested
1547 #line directives for them. Emit a #line for the main file
1548 before processing these switches, and don't do it again
1549 afterward.
1551 Wed Sep 30 18:03:22 1998 Richard Henderson <rth@cygnus.com>
1553 * function.c (purge_addressof_1): Use bitfield manipulation
1554 routines to handle mem mode < reg mode.
1556 Wed Sep 30 18:43:32 1998 Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
1558 * reorg.c (try_merge_delay_insns): Account for resources referenced
1559 in each instruction in INSN's delay list before trying to eliminate
1560 useless instructions. Similarly when looking at a trial insn's delay
1561 slots.
1563 * reorg.c (check_annul_list_true_false): New function.
1564 (steal_delay_list_from_{target,fallthrough}): Call it and also
1565 refine tests for when we may annul if already filled a slot.
1566 (fill_slots_from_thread): Likewise.
1567 (delete_from_delay_slot): Return newly-created thread.
1568 (try_merge_delay_isns): Use its new return value.
1570 Wed Sep 30 18:29:26 1998 Jeffrey A Law (law@cygnus.com)
1572 * loop.c (check_dbra_loop): Use a vanilla loop reversal if the biv is
1573 used to compute a giv or as some other non-counting use.
1575 Wed Sep 30 18:19:27 1998 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1577 * regs.h (HARD_REGNO_CALL_PART_CLOBBERED): New macro.
1578 * local-alloc.c (find_free_reg): Use it.
1579 * global.c (find_reg): Likewise.
1580 * tm.texi: Document HARD_REGNO_CALL_PART_CLOBBERED.
1582 * regs.h (HARD_REGNO_CALLER_SAVE_MODE): New macro.
1583 * caller-save.c (init_caller_save): Use it.
1584 * tm.texi: Document HARD_REGNO_CALLER_SAVE_MODE.
1586 Wed Sep 30 12:57:30 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
1588 * configure.in: Add --enable-cpplib option which uses cpplib
1589 for cpp, but doesn't link cpplib into cc1. Make help text
1590 capitalization consistent.
1591 * configure: Rebuilt.
1593 Wed Sep 30 10:09:39 1998 Mark Mitchell <mark@markmitchell.com>
1595 * function.c (gen_mem_addressof): If the address REG is
1596 REG_USERVAR_P make the new REG be so also.
1597 * loop.c (scan_loop): Apply DeMorgan's laws and add documentation
1598 in an attempt to clarify slightly.
1600 Wed Sep 30 09:57:40 1998 Jeffrey A Law (law@cygnus.com)
1602 * expr.c (expand_expr): Handle COMPONENT_REF, BIT_FIELD_REF ARRAY_REF
1603 and INDIRECT_REF in code to check MAX_INTEGER_COMPUTATION_MODE.
1605 Wed Sep 30 10:13:39 1998 Catherine Moore <clm@cygnus.com>
1607 * toplev.c: Fix last patch.
1609 Tue Sep 29 20:03:18 1998 Jim Wilson <wilson@cygnus.com>
1611 * loop.c (get_condition): Fix typo in May 9 change.
1613 Tue Sep 29 11:11:38 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
1615 * invoke.texi (-fexceptions): Merge 2 different descriptions.
1617 Mon Sep 28 22:08:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1619 * toplev.c (documented_lang_options): Spelling corrections.
1621 Mon Sep 28 19:41:24 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
1623 * configure.in: new flags --with-ld and --with-as, equivalent
1624 to setting LD and AS environment variables. Test whether
1625 specified arguments are GNU commands, and report them with
1626 checking messages. Use the specified AS for configure
1627 tests too.
1628 * configure: ditto
1629 * acconfig.h: add DEFAULT_ASSEMBLER and DEFAULT_LINKER
1630 * config.in: ditto
1631 * gcc.c (find_a_file): when looking for `as' and `ld', return
1632 the DEFAULT program if it exists
1633 * collect2.c (main): use DEFAULT_LINKER if it exists
1635 * gcc.c (find_a_file): the test for existence of a full
1636 pathname was reversed
1638 Mon Sep 28 17:34:35 1998 Michael Meissner <meissner@cygnus.com>
1640 * rs6000.h (ASM_OUTPUT_MI_THUNK): Only define on ELF systems.
1641 * rs6000.c (output_mi_thunk): Always use a raw jump for now.
1643 Mon Sep 28 14:24:03 1998 Mark Mitchell <mark@markmitchell.com>
1645 * tree.h (TYPE_BINFO): Document.
1647 Mon Sep 28 12:55:49 1998 Stan Cox <scox@cygnus.com>
1649 * i386-coff.h (dbxcoff.h): Added.
1651 Mon Sep 28 12:51:00 1998 Catherine Moore <clm@cygnus.com>
1653 * toplev.c: fix bad patch around flag_data_sections.
1655 Mon Sep 28 10:32:28 1998 Nick Clifton <nickc@cygnus.com>
1657 * reload1.c (reload): Use reload_address_index_reg_class and
1658 reload_address_base_reg_class when setting
1659 caller_save_spill_class. (Patch generated by Jim Wilson:
1660 wilson@cygnus.com).
1662 Mon Sep 28 07:43:34 1998 Mark Mitchell <mark@markmitchell.com>
1664 * c-common.c (c_get_alias_set): Tighten slightly for FUNCTION_TYPEs
1665 and ARRAY_TYPEs. Tidy up. Improve support for type-punning.
1666 * expr.c (store_field): Add alias_set parameter. Set the
1667 MEM_ALIAS_SET accordingly, if the target is a MEM.
1668 (expand_assignment): Use it.
1669 (store_constructor_field): Pass 0.
1670 (expand_expr): Likewise.
1672 Mon Sep 28 07:54:03 1998 Catherine Moore <clm@cygnus.com>
1674 * flags.h: Add flag_data_sections.
1675 * toplev.c: Add option -fdata-sections. Add flag_data_sections.
1676 (compile_file): Error if flag_data_sections not supported.
1677 * varasm.c (assemble_variable): Handle flag_data_sections.
1678 * config/svr4.h: Modify prefixes for UNIQUE_SECTION_NAME.
1679 * config/mips/elf.h: Likewise.
1680 * config/mips/elf64.h: Likewise.
1681 * invoke.texi: Describe -fdata-sections.
1683 Mon Sep 28 04:15:44 1998 Craig Burley <burley@melange.gnu.org>
1685 * invoke.texi (-ffloat-store): Clarify that this option
1686 does not affect intermediate results -- only variables.
1688 Mon Sep 28 04:11:35 1998 Jeffrey A Law (law@cygnus.com)
1690 * cpp.texi: Update for Fortran usage from Craig.
1692 Fri Sep 25 22:09:47 1998 David Edelsohn <edelsohn@mhpcc.edu>
1694 * rs6000.c (function_arg_boundary): Revert accidental change on
1695 September 18.
1697 Fri Sep 25 20:30:00 1998 Michael Meissner <meissner@cygnus.com>
1699 * rs6000.h (ASM_OUTPUT_MI_THUNK): Declare, call output_mi_thunk.
1700 (output_mi_thunk): Declare.
1702 * rs6000.c (output_mi_thunk): Function to create thunks for MI.
1703 (output_function_profiler): Use r12 for temp, instead of r11 so
1704 that we preserve the static chain register.
1706 Fri Sep 25 14:18:33 1998 Jim Wilson <wilson@cygnus.com>
1708 * sdbout.c (sdbout_one_type): Don't look at TYPE_BINFO field of enums.
1710 Fri Sep 25 19:30:19 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1712 * sh.c (gen_shl_sext): Fix case 5.
1714 Fri Sep 25 17:35:23 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1716 * reload1.c (reload_combine): Re-add line that got accidentally lost.
1718 Fri Sep 25 10:43:47 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
1720 * cccp.c (pedwarn_with_file_and_line): For !__STDC__ case, avoid
1721 accessing variables until they are initialized via va_arg().
1723 Thu Sep 24 22:12:16 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1725 * reload1.c (reload_combine): Initialize set before using.
1727 Thu Sep 24 18:53:20 1998 Jason Merrill <jason@yorick.cygnus.com>
1729 * sdbout.c (sdbout_field_types): Don't emit the types of fields we
1730 won't be emitting.
1732 Thu Sep 24 17:05:30 1998 Nick Clifton <nickc@cygnus.com>
1734 * config/arm/arm.md (insv): Add comment. In CONST_INT case, and
1735 operand3 with mask before using it. Patch provided by Jim Wilson.
1737 Thu Sep 24 15:08:08 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
1739 * config/sparc/sparc.c (function_value): Perform the equivalent of
1740 PROMOTE_MODE for ARCH64.
1741 (eligible_for_epilogue_delay): Allow DImode operations in delay
1742 slot of a return for ARCH64.
1744 Thu Sep 24 22:17:54 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1746 * sh.md (sqrtsf2): Fix mode of sqrt.
1748 Thu Sep 24 21:48:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1750 * reload1.c (choose_reload_regs): Also try inheritance when
1751 reload_in is a stack slot of a pseudo, even if we already got a
1752 reload reg.
1754 Thu Sep 24 21:22:39 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1756 * reload1.c (reload_cse_regs_1): Renamed from reload_cse_regs.
1757 (reload_cse_regs): New function body: call reload_cse_regs_1,
1758 reload_combine, reload_cse_move2add.
1759 When doing expensive_optimizations, call reload_cse_regs_1 a
1760 second time after reload_cse_move2add.
1761 (reload_combine, reload_combine_note_store): New functions.
1762 (reload_combine_note_use): New function.
1763 (reload_cse_move2add, move2add_note_store): New functions.
1765 Thu Sep 24 18:48:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1767 * reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
1768 reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
1770 Properly keep track of first RELOAD_FOR_X_ADDRESS also for
1771 more than 3 such reloads.
1773 If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
1774 RELOAD_FOR_X_ADDR_ADDR reload.
1776 Thu Sep 24 17:45:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
1778 * expr.c (store_constructor): When initializing a field that is smaller
1779 than a word, at the start of a word, try to widen it to a full word.
1781 * cse.c (cse_insn): When we are about to change a register,
1782 remove any invalid references to it.
1784 (remove_invalid_subreg_refs): New function.
1785 (mention_regs): Special treatment for SUBREGs.
1786 (insert_regs): Don't strip SUBREG for call to mention_regs.
1787 Check if reg_tick needs to be bumped up before that call.
1788 (lookup_as_function): Try to match known word_mode constants when
1789 looking for a norrower constant.
1790 (canon_hash): Special treatment for SUBREGs.
1792 Thu Sep 24 01:35:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
1794 * config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Define.
1795 * config/sparc/sparc.c (sparc64_initialize_trampoline): If that is
1796 defined, emit libcall to __enable_execute_stack. Also fix opcodes
1797 and offsets in actual stack trampoline code so they match the
1798 commentary and actually work.
1800 Thu Sep 24 01:19:02 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
1802 * configure.in (sparcv9-*-solaris): Use t-sol2 and t-sol2-64 for
1803 tmake_file.
1804 (sparc64-*-linux): Use t-linux and sparc/t-linux64 for
1805 tmake_file. Set extra_parts to needed crt objects.
1806 * configure: Rebuilt.
1807 * config/sparc/linux64.h (SPARC_BI_ARCH): Define.
1808 (TARGET_DEFAULT): Set if default is v9 or ultra.
1809 (STARTFILE_SPEC32, STARTFILE_SPEC64): New macros.
1810 (STARTFILE_SPEC): Set to those upon SPARC_BI_ARCH.
1811 (ENDFILE_SPEC32, ENDFILE_SPEC64, ENDFILE_SPEC): Likewise.
1812 (SUBTARGET_EXTRA_SPECS, LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
1813 LINK_SPEC, LINK_ARCH_SPEC): Likewise.
1814 (TARGET_VERSION): Define.
1815 (MULTILIB_DEFAULT): Define.
1816 * config/sparc/sparc.h (CPP_CPU_DEFAULT_SPEC): Rearrange so that
1817 mixed 32/64 bit compilers based upon SPARC_BI_ARCH work.
1818 (CPP_CPU64_DEFAULT_SPEC, CPP_CPU32_DEFAULT_SEC): Define
1819 appropriately.
1820 (TARGET_SWITCHES): Allow ptr32/ptr64 options once more.
1821 * config/sparc/sparc.c (sparc_override_options): If arch and
1822 pointer size disagree, emit diagnostic and fix it up. If
1823 SPARC_BI_ARCH and TARGET_ARCH32, set cmodel to CM_32. Turn off
1824 V8PLUS in 64-bit mode.
1825 * config/sparc/t-linux64: New file.
1826 * config/sparc/t-sol2-64: New file.
1827 * config/sparc/t-sol2: Adjust build rules to use MULTILIB_CFLAGS.
1828 * config/sparc/sol2-sld-64.h (SPARC_BI_ARCH): Define.
1829 (ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC,
1830 CPP_CPU32_DEFAULT_SPEC, CPP_CPU64_DEFAULT_SPEC): Define.
1831 (ASM_SPEC, CPP_CPU_SPEC): Set appropriately based upon those.
1832 (STARTFILE_SPEC32, STARTFILE_SPEC32, STARTFILE_ARCH_SPEC):
1833 Define.
1834 (STARTFILE_SPEC): Set approriately based upon those.
1835 (CPP_CPU_DEFAULT_SPEC, ASM_CPU_DEFAULT_SPEC): Set based upon
1836 disposition of DEFAULT_ARCH32_P.
1837 (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC): Define.
1838 (LINK_ARCH_SPEC, LINK_ARCH_DEFAULT_SPEC): Set based upon those.
1839 (CC1_SPEC, MULTILIB_DEFAULTS): Set based upon DEFAULT_ARCH32_P.
1840 (MD_STARTFILE_PREFIX): Set correctly based upon SPARC_BI_ARCH.
1841 * config/sparc/xm-sysv4-64.h (HOST_BITS_PER_LONG): Only set on
1842 arch64/v9.
1843 * config/sparc/xm-sp64.h (HOST_BITS_PER_LONG): Likewise.
1845 Wed Sep 23 22:32:31 1998 Mark Mitchell <mark@markmitchell.com>
1847 * rtl.h (init_virtual_regs): New function.
1848 * emit-rtl.c (init_virtual_regs): Define.
1849 (insn_emit): Use it.
1850 * integrate.c (save_for_inline_copying): Likewise.
1852 Wed Sep 23 16:22:01 1998 Nick Clifton <nickc@cygnus.com>
1854 * config/arm/thumb.h: The following patches were made by Jim Wilson:
1855 (enum reg_class): Add NONARG_LO_REGS support.
1856 (REG_CLASS_NAMES, REG_CLASS_CONTENTS, REGNO_REG_CLASS,
1857 PREFERRED_RELOAD_CLASS, SECONDARY_RELOAD_CLASS): Likewise.
1858 (GO_IF_LEGITIMATE_ADDRESS): Disable REG+REG addresses before reload
1859 completes. Re-enable HImode REG+OFFSET addresses.
1860 (LEGITIMIZE_RELOAD_ADDRESS): Define.
1862 * expmed.c (extract_bit_field): Add comment from Jim Wilson.
1864 Wed Sep 23 13:26:02 1998 Richard Henderson <rth@cygnus.com>
1866 * alpha.c (get_aligned_mem): Revert Sep 20 change.
1867 (alpha_set_memflags, alpha_set_memflags_1): Likewise.
1868 (alpha_align_insns): Properly calculate initial offset wrt max_align.
1870 Wed Sep 23 10:45:44 1998 Richard Earnshaw (rearnsha@arm.com)
1872 * arm.c (find_barrier): Revert change of Apr 23. Handle table
1873 jumps as a single entity, taking into account the size of the
1874 table.
1876 Tue Sep 22 15:13:34 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
1878 * tree.def (SWITCH_EXPR): New tree node definition.
1880 Mon Sep 21 23:40:38 PDT 1998 Jeff Law (law@cygnus.com)
1882 * version.c: Bump for snapshot.
1884 Mon Sep 21 22:31:14 PDT 1998 Jeff Law (law@cygnus.com)
1886 * version.c: Bump for snapshot.
1888 Mon Sep 21 22:48:09 1998 Jeffrey A Law (law@cygnus.com)
1890 * configure.in: Recognize i[34567]86-*-openbsd* and handle it like
1891 NetBSD.
1893 Mon Sep 21 22:05:28 1998 Jeffrey A Law (law@cygnus.com)
1895 * Revert this patch.
1896 * reload.c (find_reloads): Do not replace a pseudo with
1897 (MEM (reg_equiv_addr)) in the initializing insn for the
1898 pseudo.
1900 Mon Sep 21 20:19:41 1998 John Carr <jfc@mit.edu>
1902 * final.c (final_scan_insn): Disable tracking CC across branches.
1904 Mon Sep 21 17:15:26 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
1906 * expr.h (eh_rtime_match_libfunc): New extern declaration.
1907 * optabs.c (init_optabs): Set eh_rtime_match_libfunc.
1908 * except.c (start_catch_handler): Use eh_rtime_match_libfunc.
1909 * libgcc2.c (__eh_rtime_match): Always return 0 if the matcher is
1910 NULL. Only include <stdio.h> if inhibit_libc is not defined.
1912 Mon Sep 21 14:10:51 1998 Jason Merrill <jason@yorick.cygnus.com>
1914 * toplev.c (rest_of_compilation): Skip compiling anything with
1915 DECL_EXTERNAL set, not just if it has DECL_INLINE as well.
1917 Mon Sep 21 13:51:05 1998 Jim Wilson <wilson@cygnus.com>
1919 * flow.c (find_basic_blocks): Delete check for in_libcall_block when
1920 prev_code is a CALL_INSN. Change check for REG_RETVAL note to
1921 use in_libcall_block.
1922 (find_basic_blocks_1): Delete check for in_libcall_block when prev_code
1923 is a CALL_INSN. If CALL_INSN and in_libcall_block, then change code
1924 to INSN.
1926 Mon Sep 21 14:02:23 1998
1928 * i386.h: (TARGET_SWITCHES) Improve doc for align-double. Fix
1929 typo in no-fancy-math-387 description.
1931 Mon Sep 21 09:27:18 PDT 1998 Jeff Law (law@cygnus.com)
1933 * version.c: Bump for snapshot.
1935 Mon Sep 21 09:24:49 1998 Stan Cox <scox@cygnus.com>
1937 * i386-coff.h (DBX_DEBUGGING_INFO): Added.
1939 Mon Sep 21 09:14:49 1998 Robert Lipe <robertl@dgii.com>
1941 * i386.h: (TARGET_SWITCHES) Add description fields for flags
1942 documented in install.texi.
1943 (TARGET_OPTIONS) Likewise.
1945 Mon Sep 21 01:39:03 PDT 1998 Jeff Law (law@cygnus.com)
1947 * version.c: Bump for snapshot.
1949 Mon Sep 21 01:53:05 1998 Felix Lee <flee@cygnus.com>
1951 * c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
1952 * cccp.c (main): Likewise.
1954 * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
1955 Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
1956 macro-use bugs.
1958 Mon Sep 21 00:52:12 1998 Per Bothner <bothner@cygnus.com>
1960 * Makefile.in (LIBS): Link in libiberty.a.
1961 * c-common.c, gcc.c, toplev.c: Replace (some) bcopy calls by memcpy.
1963 Sun Sep 20 23:28:11 1998 Richard Henderson <rth@cygnus.com>
1965 * reload1.c (emit_reload_insns): Accept a new arg for the bb. Use
1966 it to update bb boundaries. Update caller.
1967 * function.c (reposition_prologue_and_epilogue_notes): Update
1968 bb boundaries wrt the moved note.
1970 Sun Sep 20 20:57:02 1998 Robert Lipe <robertl@dgii.com>
1972 * configure.in (i*86-*-sysv5*): Use fixinc.svr4 to patch byteorder
1973 problems.
1974 * configure: Regenerate.
1976 Sun Sep 20 19:01:51 1998 Richard Henderson <rth@cygnus.com>
1978 * alpha.c (alpha_sr_alias_set): New variable.
1979 (override_options): Set it.
1980 (alpha_expand_prologue, alpha_expand_epilogue): Use it.
1981 (mode_mask_operand): Fix signed-unsigned comparision warning.
1982 (alpha_expand_block_move): Likewise.
1983 (print_operand): Likewise.
1984 (get_aligned_mem): Use change_address.
1985 (alpha_set_memflags, alpha_set_memflags_1): Set the alias set.
1986 (alphaev4_insn_pipe, alphaev4_next_group): New functions.
1987 (alphaev4_next_nop, alphaev5_next_nop): New functions.
1988 (alpha_align_insns): Remade from old alphaev5_align_insns
1989 to handle multiple processors.
1990 (alpha_reorg): Call alpha_align_insns for both ev4 and ev5.
1991 * output.h (label_to_alignment): Prototype.
1993 * tree.c (new_alias_set): New function.
1994 * tree.h (new_alias_set): Declare it.
1995 * c-common.c (c_get_alias_set): Use it.
1997 Sun Sep 20 12:35:55 1998 Richard Henderson <rth@cygnus.com>
1999 * fold-const.c (fold): Yet another COND_EXPR bug: when folding
2000 to an ABS expr, convert an unsigned input to signed.
2002 Sun Sep 20 12:14:45 1998 Jeffrey A Law (law@cygnus.com)
2004 * fold-const.c (fold): Fix another type in COND_EXPR handling code.
2006 1998-09-20 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2008 * configure.in: Add support for c4x targets.
2009 * configure: Rebuilt.
2011 Sun Sep 20 00:00:51 1998 Richard Henderson <rth@cygnus.com>
2013 * combine.c (distribute_notes): If an insn is a cc0 user, only
2014 delete it if we can also delete the cc0 setter.
2016 Sun Sep 20 00:22:23 1998 Michael Tiemann <michael@impact.tiemann.org>
2018 * fold-const.c (fold): Fix typo in COND_EXPR handling code.
2019 (invert_truthvalue): Enable truthvalue inversion for
2020 floating-point operands if -ffast-math.
2022 Sat Sep 19 23:58:07 1998 Melissa O'Neill <oneill@cs.sfu.ca>
2024 * configure.in: Disable collect2 for nextstep. Instead use
2025 crtbegin/crtend.
2026 * configure: Rebuilt.
2027 * config/nextstep.h (STARTFILE_SPEC): Add crtbegin.
2028 (ENDFILE_SPEC): Define.
2029 (OBJECT_FORMAT_MACHO): Define.
2030 (EH_FRAME_SECTION_ASM_OP): Define.
2031 * crtstuff.c: Handle MACHO.
2033 Sun Sep 20 00:24:24 1998 Robert Lipe <robertl@dgii.com>
2035 * config/i386/sco5.h (TARGET_MEM_FUNCTIONS): Define.
2037 1998-09-19 Torbjorn Granlund <tege@matematik.su.se>
2039 * fp-bit.c (pack_d): Do not clear SIGN when fraction is 0.
2040 (_fpadd_parts): Get sign right for 0.
2042 1998-09-19 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
2044 * ginclude/varargs.h: Add support for C4x target.
2045 * ginclude/stdargs.h: Likewise.
2047 Sat Sep 19 12:05:09 1998 Richard Henderson <rth@cygnus.com>
2049 * alpha.c (alpha_return_addr): SET should be VOIDmode.
2050 (alpha_emit_set_long_const): Rewrite to be callable from reload
2051 and 32-bit hosts.
2052 (alpha_expand_epilogue): Update for alpha_emit_set_long_const.
2053 * alpha.md (movdi): Likewise.
2055 Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com)
2057 * arm.c (add_constant): New parameter address_only, change caller.
2058 Set it non-zero if taking the address of an item in the pool.
2059 (arm_reorg): Handle cases where we need the address of an item in
2060 the pool.
2062 * arm.c (bad_signed_byte_operand): Check both arms of a sum in
2063 a memory address.
2064 * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
2065 memory addresses that are not in standard canonical form.
2067 Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz)
2069 * README.C4X: New file with information about the c4x ports.
2070 * ginclude/va-c4x.h: New file for c4x varargs support.
2071 * config/c4x: New directory with c4x port files.
2073 Fri Sep 18 22:52:05 1998 Jeffrey A Law (law@cygnus.com)
2075 * reload.c (find_reloads): Do not replace a pseudo with
2076 (MEM (reg_equiv_addr)) in the initializing insn for the
2077 pseudo.
2079 Fri Sep 18 23:50:56 1998 David Edelsohn <edelsohn@mhpcc.edu>
2081 * toplev.c (rest_of_compilation): Set bct_p on second call to
2082 loop_optimize.
2083 * loop.c (loop_optimize, scan_loop, strength_reduce): New argument
2084 bct_p.
2085 (strength_reduce): Only call analyze_loop_iterations and
2086 insert_bct if bct_p set.
2087 (check_dbra_loop): Fix typo.
2088 (insert_bct): Use word_mode instead of SImode.
2089 (instrument_loop_bct): Likewise. Do not delete iteration count
2090 condition code generation insn. Initialize iteration count before
2091 loop start.
2092 * rtl.h (loop_optimize): Update prototype.
2094 * ginclude/va-ppc.h (va_arg): longlong types in overflow area are
2095 not doubleword aligned.
2097 * rs6000.c (optimization_options): New function.
2098 (secondary_reload_class): Only call true_regnum for PSEUDO_REGs.
2099 * rs6000.h (OPTIMIZATION_OPTIONS): Define.
2100 (REG_ALLOC_ORDER): Allocate highest numbered condition regsiters
2101 first; cr1 can be used for FP record condition insns.
2103 Fri Sep 18 09:44:55 1998 Nick Clifton <nickc@cygnus.com>
2105 * config/m32r/m32r.h (m32r_block_immediate_operand): Add to
2106 PREDICATE_CODES.
2108 * config/m32r/m32r.md: Add "movstrsi" and "movstrsi_internal"
2109 patterns.
2111 * config/m32r/m32r.c (m32r_print_operand): Add 's' and 'p'
2112 operators.
2113 (block_move_call): New function: Call a library routine to copy a
2114 block of memory.
2115 (m32r_expand_block_move): New function: Expand a "movstrsi"
2116 pattern into a sequence of insns.
2117 (m32r_output_block_move): New function: Expand a
2118 "movstrsi_internal" pattern into a sequence of assembler opcodes.
2119 (m32r_block_immediate_operand): New function: Return true if the
2120 RTL is an integer constant, less than or equal to MAX_MOVE_BYTES.
2122 Thu Sep 17 16:42:16 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2124 * except.c (start_catch_handler): Issue 'fatal' instead of 'error' and
2125 re-align some code.
2126 * libgcc2.c (__eh_rtime_match): fprintf a runtime error. Use <stdio.h>.
2128 Thu Sep 17 12:24:33 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2130 * regmove.c (copy_src_to_dest): Check that modes match.
2132 Wed Sep 16 22:10:42 1998 Robert Lipe <robertl@dgii.com>
2134 * config/i386/sco5.h (SUPPORTS_WEAK): True only if targeting ELF.
2136 Wed Sep 16 15:24:54 1998 Richard Henderson <rth@cygnus.com>
2138 * i386.h (PREFERRED_RELOAD_CLASS): Respect an existing class
2139 narrower than FLOAT_REGS.
2141 Wed Sep 16 17:51:00 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2143 * cpplib.c: removed OLD_GPLUSPLUS_INCLUDE_DIR
2144 * cccp.c: ditto
2145 * Makefile.in (old_gxx_include_dir): removed
2147 Wed Sep 16 12:29:22 1998 Nick Clifton <nickc@cygnus.com>
2149 * config/sh/sh.h: Update definition of HANDLE_PRAGMA to match
2150 new specification.
2152 * config/sh/sh.c (handle_pragma): Rename to sh_handle_pragma().
2153 (sh_handle_pragma): Change function arguments to match new
2154 specification for HANDLE_PRAGMA.
2156 Wed Sep 16 12:43:19 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2158 * gen-protos.c (parse_fn_proto): Cast argument of ISALNUM to
2159 `unsigned char'.
2160 (main): Mark parameter `argc' with ATTRIBUTE_UNUSED.
2161 When generating output, initialize missing struct member to zero.
2163 Wed Sep 16 14:47:43 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2165 * regmove.c (copy_src_to_dest): Don't copy if that requires
2166 (a) new register(s).
2168 Wed Sep 16 01:29:12 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2170 * global.c (reg_allocno): Now static.
2171 * reload1.c (reg_allocno): Delete declaration.
2172 (order_regs_for_reload): Take no arguments. Don't treat regs
2173 allocated by global differently than those allocated by local-alloc.
2175 Wed Sep 16 01:09:01 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
2177 * m68k/m68k.c (output_function_prologue): Reverse NO_ADDSUB_Q
2178 condition, fix format strings.
2179 (output_function_epilogue): Likewise.
2181 * m68k/m68k.c: Don't include <stdlib.h> directly.
2183 Wed Sep 16 00:30:56 1998 Geoff Keating <geoffk@ozemail.com.au>
2185 * gcse.c: New definition NEVER_SET for reg_first_set, reg_last_set,
2186 mem_first_set, mem_last_set; because 0 can be a CUID.
2187 (oprs_unchanged_p): Use new definition.
2188 (record_last_reg_set_info): Likewise.
2189 (record_last_mem_set_info): Likewise.
2190 (compute_hash_table): Likewise.
2192 Tue Sep 15 22:59:52 1998 Jeffrey A Law (law@cygnus.com)
2194 * rs6000.c (output_epilogue): Handle Chill.
2196 * mn10200.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
2197 * mn10300.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Define.
2199 * combine.c (make_extraction): If no mode is specified for
2200 an operand of insv, extv, or extzv, default it to word_mode.
2201 (simplify_comparison): Similarly.
2202 * expmed.c (store_bit_field): Similarly.
2203 (extract_bit_field): Similarly.
2204 * function.c (fixup_var_regs_1): Similarly.
2205 * recog.c (validate_replace_rtx_1): Similarly.
2206 * mips.md (extv, extzv, insv expanders): Default modes for most
2207 operands. Handle TARGET_64BIT.
2208 (movdi_uld, movdi_usd): New patterns.
2210 * pa.c (emit_move_sequence): Do not replace a pseudo with its
2211 equivalent memory location unless we have been provided a scratch
2212 register. Similarly do not call find_replacement unless a
2213 scratch register has been provided.
2215 Tue Sep 15 19:23:01 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2217 * i386.h (PREFERRED_RELOAD_CLASS): For standard 387 constants,
2218 return FLOAT_REGS.
2220 Tue Sep 15 19:09:06 1998 Richard Henderson <rth@cygnus.com>
2222 * tree.h (BUILT_IN_CALLER_RETURN_ADDRESS): Unused. Kill.
2223 (BUILT_IN_FP, BUILT_IN_SP, BUILT_IN_SET_RETURN_ADDR_REG): Kill.
2224 (BUILT_IN_EH_STUB_OLD, BUILT_IN_EH_STUB, BUILT_IN_SET_EH_REGS): Kill.
2225 (BUILT_IN_EH_RETURN, BUILT_IN_DWARF_CFA): New.
2226 * c-decl.c (init_decl_processing): Update accordingly.
2227 * expr.c (expand_builtin): Likewise.
2229 * rtl.h (global_rtl): Add cfa entry.
2230 (virtual_cfa_rtx, VIRTUAL_CFA_REGNUM): New.
2231 (LAST_VIRTUAL_REGISTER): Update.
2232 * emit-rtl.c (global_rtl): Add cfa entry.
2233 (init_emit): Initialize it.
2234 * function.c (cfa_offset): New.
2235 (instantiate_virtual_regs): Initialize it.
2236 (instantiate_virtual_regs_1): Instantiate virtual_cfa_rtx.
2237 (expand_function_end): Call expand_eh_return.
2238 * tm.texi (ARG_POINTER_CFA_OFFSET): New.
2240 * except.c (current_function_eh_stub_label): Kill.
2241 (current_function_eh_old_stub_label): Likwise; update all references.
2242 (expand_builtin_set_return_addr_reg): Kill.
2243 (expand_builtin_eh_stub_old, expand_builtin_eh_stub): Kill.
2244 (expand_builtin_set_eh_regs): Kill.
2245 (eh_regs): Produce a third reg for the actual handler address.
2246 (eh_return_context, eh_return_stack_adjust): New.
2247 (eh_return_handler, eh_return_stub_label): New.
2248 (init_eh_for_function): Initialize them.
2249 (expand_builtin_eh_return, expand_eh_return): New.
2250 * except.h: Update prototypes.
2251 * flow.c (find_basic_blocks_1): Update references to the stub label.
2252 * function.h (struct function): Kill stub label elements.
2254 * libgcc2.c (in_reg_window): For REG_SAVED_REG, check that the
2255 register number is one that would be in the previous window.
2256 Provide a dummy definition for non-windowed targets.
2257 (get_reg_addr): New function.
2258 (get_reg, put_reg, copy_reg): Use it.
2259 (__throw): Rely on in_reg_window, not INCOMING_REGNO. Kill stub
2260 generating code and use __builtin_eh_return. Use __builtin_dwarf_cfa.
2262 * alpha.c (alpha_eh_epilogue_sp_ofs): New.
2263 (alpha_init_expanders): Initialize it.
2264 (alpha_expand_epilogue): Use it.
2265 * alpha.h: Declare it.
2266 * alpha.md (eh_epilogue): New.
2268 * m68h.h (ARG_POINTER_CFA_OFFSET): New.
2269 * sparc.h (ARG_POINTER_CFA_OFFSET): New.
2271 Tue Sep 15 19:31:58 1998 Michael Meissner <meissner@cygnus.com>
2273 * i960.h (CONST_COSTS): Fix thinko. Test flag, not the constant
2274 flag bit mask.
2276 Tue Sep 15 14:10:54 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2278 * except.h (struct eh_entry): Add false_label field.
2279 (end_catch_handler): Add prototype.
2280 * except.c (push_eh_entry): Set false_label field to NULL_RTX.
2281 (start_catch_handler): When using old style exceptions, issue
2282 runtime typematch code before continuing with the handler.
2283 (end_catch_handler): New function, generates label after handler
2284 if needed by older style exceptions.
2285 (expand_start_all_catch): No need to check for new style exceptions.
2286 (output_exception_table_entry): Only output the first handler label
2287 for old style exceptions.
2288 * libgcc2.c (__eh_rtime_match): New routine to lump runtime matching
2289 mechanism into one function, if a runtime matcher is provided.
2291 Tue Sep 15 13:53:59 EDT 1998 Andrew MacLeod <amacleod@cygnus.com>
2293 * config/i960/i960.h (SLOW_BYTE_ACCESS): Change definition to 1.
2295 Tue Sep 15 09:59:01 1998 Mark Mitchell <mark@markmitchell.com>
2297 * integrate.c (copy_decl_list): Fix typo.
2299 Tue Sep 15 04:18:52 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2301 * config/sparc/sparc.md (movdf_const_intreg_sp32): Fix length
2302 attribute.
2304 Mon Sep 14 14:02:53 PDT 1998 Jeff Law (law@cygnus.com)
2306 * version.c: Bump for snapshot.
2308 Mon Sep 14 10:33:56 PDT 1998 Jeff Law (law@cygnus.com)
2310 * version.c: Bump for snapshot.
2312 Mon Sep 14 09:51:05 PDT 1998 Jeff Law (law@cygnus.com)
2314 * version.c: Bump for snapshot.
2316 Sun Sep 13 22:10:18 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2318 * invoke.texi (C Dialect Options): Put back missing @end itemize.
2320 Mon Sep 14 02:33:46 1998 Alexandre Oliva <oliva@dcc.unicamp.br>
2322 * configure.in: remove usage of `!' to negate the result of a
2323 command; some common shells do not support it
2325 Sun Sep 13 19:17:35 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2327 * configure.in: in sparc9-sol2 config, use 'if test' not
2328 brackets.
2329 * configure: Rebuilt.
2331 * config/sparc/sol2-sld-64.h (SPARC_DEFAULT_CMODEL): Change to
2332 CM_MEDANY.
2333 (CPP_CPU_SPEC): Do not define _LP64, header files do this.
2334 (CPP_CPU_DEFAULT_SPEC): Likewise.
2335 * config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Get the names right
2336 for arch64 libfuncs.
2338 * config/sparc/sparc.md (goto_handler_and_restore): Allow any mode
2339 for operand zero.
2341 Sun Sep 13 09:11:59 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2343 * acconfig.h (NEED_DECLARATION_STRSIGNAL): Provide a stub.
2345 * collect2.c: Don't declare `sys_siglist' here.
2346 (my_strsignal): Prototype and define new function. Use it in
2347 place of `sys_siglist' hacks.
2349 * mips_tfile.c: Likewise.
2351 * configure.in (AC_CHECK_FUNCS): Check for strsignal.
2352 (GCC_NEED_DECLARATIONS): Likewise.
2354 * system.h (strsignal): Prototype it, if necessary.
2355 (sys_siglist): Declare it, if necessary.
2357 Sun Sep 13 04:37:28 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2359 * loop.c (move_movables): While removing insn sequences, preserve
2360 the next pointer of the most recently deleted insn when we skip
2361 over a NOTE.
2363 Sun Sep 13 08:13:39 1998 Ben Elliston <bje@cygnus.com>
2365 * objc/config-lang.in: Do not output the name of the selected
2366 thread file when building the front-end. The Makefile for the
2367 runtime library will do this.
2369 * objc/Make-lang.in: Do not build the runtime library or install
2370 the Objective C header files. The Makefile for the runtime
2371 library will do this.
2373 * objc/Makefile.in (all.indirect): Only build the front-end.
2374 (compiler): Rename to `frontend'.
2375 (obj-runtime): Remove target.
2376 (copy-headers): Likewise.
2377 (clean): No need to remove `libobjc.a' any longer.
2379 Sat Sep 12 11:37:19 1998 Michael Meissner <meissner@cygnus.com>
2381 * rs6000.h ({ASM,CPP}_CPU_SPEC): Add support for all machines
2382 supported with -mcpu=xxx.
2384 Fri Sep 11 23:55:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2386 * flow.c (mark_set_1): Recognize multi-register structure return
2387 values in CALL insns.
2388 (mark_used_regs): Likewise.
2389 (count_reg_sets_1): Likewise.
2390 (count_reg_references): Likewise.
2391 * rtlanal.c (note_stores): Likewise.
2392 (reg_overlap_mentioned_p): Likewise.
2393 * haifa-sched.c (check_live_1): Likewise.
2394 (update_live_1): Likewise.
2395 (sched_analyze_1): Likewise.
2396 (sched_note_set): Likewise.
2397 (birthing_insn_p): Likewise.
2398 (attach_deaths): Likewise.
2400 * config/sparc/sparc.md (movdf_const_intreg_sp64): Disable.
2403 Fri Sep 11 22:57:55 1998 Eric Dumazet <dumazet@cosmosbay.com>
2405 * config/i386/sco5.h (ASM_WEAKEN_LABEL): Defined as in svr4.h.
2407 Thu Sep 10 22:02:04 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2409 * glimits.h (__LONG_MAX__): Recognize __sparcv9 too.
2411 Thu Sep 10 21:19:10 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2413 * configure.in: Add check for GAS subsection -1 support.
2414 * acconfig.h (HAVE_GAS_SUBSECTION_ORDERING): Add.
2415 * configure config.in: Rebuilt.
2416 * config/sparc/sparc.h (CASE_VECTOR_MODE): For V9 flag_pic, use
2417 SImode is subsection -1 works, else use DImode.
2418 (ASM_OUTPUT_ADDR_VEC_START, ASM_OUTPUT_ADDR_VEC_END): Define if
2419 subsection -1 works.
2420 * config/sparc/sparc.c (sparc_output_addr_vec,
2421 sparc_output_addr_diff_vec): Use them if defined.
2423 Thu Sep 10 10:46:01 1998 Mark Mitchell <mark@markmitchell.com>
2425 * tree.h (DECL_ORIGIN): New macro.
2426 * integrate.c (copy_and_set_decl_abstract_origin): New function.
2427 (copy_decl_list): Use it.
2428 (integrate_parm_decls): Likewise.
2429 (integrate_decl_tree): Likewise.
2430 * dwarf2out.c (decl_ultimate_origin): Simplify.
2431 * dwarfout.c (decl_ultimate_origin): Likewise.
2432 * c-decl.c (duplicate_decls): Use DECL_ORIGIN.
2433 (pushdecl): Likewise.
2435 Thu Sep 10 08:01:31 1998 Anthony Green <green@cygnus.com>
2437 * config/rs6000/rs6000.c (output_epilog): Add Java support.
2439 Thu Sep 10 14:48:59 1998 Martin von Löwis <loewis@informatik.hu-berlin.de>
2441 * invoke.texi (C++ Dialect Options): Document -fhonor-std.
2443 Thu Sep 10 01:38:05 1998 Jeffrey A Law (law@cygnus.com)
2445 * reg-stack.c (straighten_stack): Do nothing if the virtual stack is
2446 empty or has a single entry.
2448 * toplev.c (rest_of_compilation): Open up the dump file for reg-stack
2449 before calling reg_to_stack.
2451 Thu Sep 10 00:03:34 1998 Richard Henderson <rth@cygnus.com>
2453 * alpha.c (alphaev5_insn_pipe): Abort on default case.
2454 (alphaev5_next_group): Swallow CLOBBERs and USEs.
2456 * c-tree.h (warn_long_long): Declare it.
2458 Wed Sep 9 23:31:36 1998 (Stephen L Moshier) <moshier@world.std.com>
2460 * emit-rtl.c (gen_lowpart_common): Disable optimization of
2461 initialized float-int union if the value is a NaN.
2463 Wed Sep 9 23:00:48 1998 Nathan Sidwell <nathan@acm.org>
2465 * c-lex.c (real_yylex): Don't warn about long long constants if
2466 we're allowing long long
2468 Wed Sep 9 21:58:41 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
2470 * except.h (current_function_eh_stub_label): Declare.
2471 (current_function_eh_old_stub_label): Declare.
2472 * function.h (struct function): New members eh_stub_label and
2473 eh_old_stub_label.
2474 * except.c (current_function_eh_stub_label): New variable.
2475 (current_function_eh_old_stub_label): New variable.
2476 (init_eh_for_function): Clear them.
2477 (save_eh_status): Save them.
2478 (restore_eh_status): Restore them.
2479 (expand_builtin_eh_stub): Set current_function_eh_stub_label.
2480 (expand_builtin_eh_stub_old): Set current_function_eh_old_stub_label.
2481 * flow.c (find_basic_blocks_1): When handling a REG_LABEL note, don't
2482 make an edge from the block that contains it to the block starting
2483 with the label if this label is one of the eh stub labels.
2484 If eh stub labels exist, show they are reachable from the last block
2485 in the function.
2487 * reload1.c (reload): Break out several subroutines and make some
2488 variables global.
2489 (calculate_needs_all_insns): New function, broken out of reload.
2490 (calculate_needs): Likewise.
2491 (find_reload_regs): Likewise.
2492 (find_group): Likewise.
2493 (find_tworeg_group): Likewise.
2494 (something_needs_reloads): New global variable, formerly in reload.
2495 (something_needs_elimination): Likewise.
2496 (caller_save_spill_class): Likewise.
2497 (caller_save_group_size): Likewise.
2498 (max_needs): Likewise.
2499 (group_size): Likewise.
2500 (max_groups): Likewise.
2501 (max_nongroups): Likewise.
2502 (group_mode): Likewise.
2503 (max_needs_insn): Likewise.
2504 (max_groups_insn): Likewise.
2505 (max_nongroups_insn): Likewise.
2506 (failure): Likewise.
2508 * print-rtl.c (print_rtx): For MEMs, print MEM_ALIAS_SET.
2510 Wed Sep 9 13:14:41 1998 Richard Henderson <rth@cygnus.com>
2512 * loop.c (load_mems): Copy rtx for output mem.
2514 Wed Sep 9 15:16:58 1998 Gavin Romig-Koch <gavin@cygnus.com>
2516 * mips/abi64.h (LONG_MAX_SPEC): Don't set LONG_MAX for
2517 mips1 or mips2 either.
2519 Wed Sep 9 12:31:35 1998 Jeffrey A Law (law@cygnus.com)
2521 * pa.c (pa_reorg): New marking scheme for jumps inside switch
2522 tables.
2523 (pa_adjust_insn_length): Update to work with new marking scheme
2524 for jumps inside switch tables.
2525 * pa.md (switch_jump): Remove pattern.
2526 (jump): Handle jumps inside jump tables.
2528 * Makefile.in (profile.o): Depend on insn-config.h
2530 Wed Sep 9 09:36:51 1998 Jim Wilson <wilson@cygnus.com>
2532 * iris6.h (DWARF2_UNWIND_INFO): Undef.
2534 Wed Sep 9 01:32:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2536 Add preliminary native sparcv9 Solaris support.
2537 * configure.in: Recognize sparv9-*-solaris2*
2538 * configure: rebuilt
2539 * config.sub: Recognize sparcv9 just like sparc64.
2540 * config/sparc/sol2-c1.asm config/sparc/sol2-ci.asm
2541 config/sparc/sol2-cn.asm: Macroize so it can be shared between
2542 32-bit and 64-bit Solaris systems.
2543 * config/sparc/t-sol2: Assemble those with cpp.
2544 * config/sparc/sparc.h (TARGET_CPU_sparcv9): New alias for v9.
2545 (*TF*_LIBCALL): If ARCH64 use V9 names.
2546 * config/sparc/{xm-sysv4-64,sol2-sld-64}.h: New files.
2548 Wed Sep 9 01:07:30 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
2550 * config/sparc/sparc.h (TARGET_CM_MEDMID): Fix documentation.
2551 (CASE_VECTOR_MODE): Set to SImode even if PTR64, when MEDLOW and
2552 not doing pic.
2553 (ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): Check CASE_VECTOR_MODE not
2554 Pmode.
2555 * config/sparc/sparc.md (tablejump): Likewise, and sign extend op0
2556 to Pmode if CASE_VECTOR_MODE is something else.
2558 Wed Sep 9 00:10:31 1998 Jeffrey A Law (law@cygnus.com)
2560 * prefix.c (update_path): Correctly handle cases where PATH is
2561 a substring of the builtin prefix, but specifies a different
2562 directory location.
2564 Tue Sep 8 23:46:04 1998 Hans-Peter Nilsson <hp@axis.se>
2566 * expr.c: Corrected comment about what MOVE_RATIO does.
2567 * config/alpha/alpha.h: Ditto.
2568 * config/1750a/1750a.h: Ditto.
2569 * config/clipper/clipper.h: Ditto.
2570 * config/i386/i386.h: Ditto.
2572 Tue Sep 8 22:56:12 1998 Jeffrey A Law (law@cygnus.com)
2574 * configure.in (m68k-next-nextstep3*): Use collect2.
2575 Similarly for x86 NeXT configurations.
2576 * configure: Rebuilt.
2578 Tue Sep 8 01:38:57 1998 Nathan Sidwell <nathan@acm.org>
2580 * configure.in: Don't assume srcdir is .../gcc
2581 * configure: Rebuilt.
2583 Sat Sep 5 16:34:34 EDT 1998 John Wehle (john@feith.com)
2585 * global.c: Update comments.
2586 (global_alloc): Assign allocation-numbers
2587 even for registers allocated by local_alloc in case
2588 they are later spilled and retry_global_alloc is called.
2589 (mark_reg_store, mark_reg_clobber,
2590 mark_reg_conflicts, mark_reg_death): Always record a
2591 conflict with a pseudo register even if it has been
2592 assigned to a hard register.
2593 (dump_conflicts): Don't list pseudo registers already assigned to
2594 a hard register as needing to be allocated, but do list their
2595 conflicts.
2596 * local-alloc.c: Update comment.
2598 Mon Sep 7 23:38:01 1998 Jeffrey A Law (law@cygnus.com)
2600 * configure.in: Check for bogus GCC_EXEC_PREFIX and LIBRARY_PATH.
2601 * configure: Rebuilt.
2603 Mon Sep 7 22:41:46 1998 Michael Meissner <meissner@cygnus.com>
2605 * rs6000.c (rs6000_override_options): Fix name for ec603e, to add
2606 missing 'c'.
2607 * t-ppccomm (MULTILIB_MATCHES_FLOAT): Add support for -mcpu=xxx
2608 for all targets that set -msoft-float.
2610 Mon Sep 7 23:30:07 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2612 * toplev.c (print_switch_values): Make static to match prototype.
2614 Mon Sep 7 19:13:59 1998 Jeffrey A Law (law@cygnus.com)
2616 * configure.in: If we are unable to find the "gnatbind" program,
2617 then do not configure the ada subdir.
2618 * configure: Rebuilt.
2620 Sun Sep 6 14:03:58 PDT 1998 Jeff Law (law@cygnus.com)
2622 * version.c: Bump for snapshot.
2624 Sun Sep 6 13:28:07 PDT 1998 Jeff Law (law@cygnus.com)
2626 * version.c: Bump for snapshot.
2628 Sun Sep 6 08:54:14 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2630 * Makefile.in (toplev.o): Depend on $(EXPR_H).
2631 (insn-extract.o, insn-attrtab.o): Depend on toplev.h.
2633 * gansidecl.h: Define ATTRIBUTE_NORETURN.
2635 * genattrtab.c: Have insn-attrtab.c include toplev.h.
2637 * genextract.c: Have insn-extract.c include toplev.h.
2639 * rtl.h: Don't prototype `fatal_insn_not_found' and `fatal_insn'.
2641 * toplev.c: Include expr.h.
2642 (really_sorry, fancy_abort): Remove prototypes.
2643 (set_target_switch): Add argument in prototype.
2644 (vfatal): Mark prototype with ATTRIBUTE_NORETURN.
2645 (v_really_sorry): Likewise.
2646 (print_version, print_single_switch, print_switch_values): Make
2647 static and add prototype arguments.
2648 (decl_printable_name): Add prototype arguments.
2649 (lang_expand_expr_t): New typedef.
2650 (lang_expand_expr): Declare as a lang_expand_expr_t.
2651 (incomplete_decl_finalize_hook): Add prototype argument.
2652 (decl_name): Mark variable `verbosity' with ATTRIBUTE_UNUSED.
2653 (botch): Likewise for variable `s'.
2654 (rest_of_type_compilation): Mark variables `type' and `toplev'
2655 with ATTRIBUTE_UNUSED if none of DBX_DEBUGGING_INFO,
2656 XCOFF_DEBUGGING_INFO or SDB_DEBUGGING_INFO are defined.
2657 (display_help): Make variable `i' an `unsigned long'.
2658 (main): Remove unused parameter `envp'.
2659 Cast assignment to `lang_expand_expr' to a `lang_expand_expr_t'.
2660 Cast -1 when comparing it with a `size_t'.
2662 * toplev.h (fatal, fatal_io_error, pfatal_with_name): Mark
2663 prototype with ATTRIBUTE_NORETURN.
2664 (fatal_insn_not_found, fatal_insn, really_sorry,
2665 push_float_handler, pop_float_handler): Add prototypes.
2666 (fancy_abort): Mark prototype with ATTRIBUTE_NORETURN.
2667 (do_abort, botch): Add prototypes.
2669 Sat Sep 6 12:05:18 1998 John Carr <jfc@mit.edu>
2671 * final.c (final): If a label is reached only from a single jump,
2672 call NOTICE_UPDATE_CC on the jump and its predecessor before
2673 emitting the insn after the label.
2675 * i386.h: Add AMD K6 support.
2676 Change TARGET_* macros to use table lookup.
2677 (INITIALIZE_TRAMPOLINE): Improve trampoline code.
2678 (ADJUST_COST): Change definition to call function in i386.c.
2679 (ISSUE_RATE): Define as 2 for anything newer than an 80486.
2680 * i386.c: Add AMD K6 support.
2681 Add constants for feature tests used by TARGET_* macros.
2682 (split_di): If before reload, call gen_lowpart and gen_highpart.
2683 (x86_adjust_cost): New function.
2684 (put_jump_code): New function.
2685 (print_operand): New codes 'D' and 'd'.
2686 * i386.md: New insn types. New insn attribute "memory".
2687 Redefine scheduling parameters to use new types and add AMD K6
2688 support. Explicitly set type of most insns.
2689 (move insns): K6 prefers movl $0,reg to xorl reg,reg. Pentium
2690 Pro and K6 prefer movl $1,reg to incl reg.
2691 (adddi3, subdi3): Set cc_status.
2692 (DImode shift patterns): Change label counters from HOST_WIDE_INT
2693 to int; x86 can't have more than 2^31 DImode shifts per file.
2694 (setcc): Combine all setcc patterns. Allow writing memory.
2695 Combine all jump patterns using match_operator.
2696 (*bzero): Name pattern. Emit mutliple stos instructions when that
2697 is faster than rep stos.
2698 (xordi3, anddi3, iordi3): Simplify DImode logical patterns and
2699 add define_split.
2701 Sun Sep 6 11:17:20 1998 Dave Love <d.love@dl.ac.uk>
2703 * config/m68k/x-next (BOOT_LDFLAGS): Define suitably for f771
2704 linking.
2706 Sat Sep 5 22:05:25 1998 Richard Henderson <rth@cygnus.com>
2708 * alpha.c (alpha_ra_ever_killed): Inspect the topmost sequence,
2709 not whatever we're generating now.
2711 * alpha.c (set_frame_related_p, FRP): New.
2712 (alpha_expand_prologue): Mark frame related insns.
2713 (alpha_expand_epilogue): Likewise, but with a null FRP.
2714 * alpha.h (INCOMING_RETURN_ADDR_RTX): New.
2715 * alpha.md (exception_receiver): New.
2716 * alpha/crtbegin.asm (.eh_frame): New beginning.
2717 (__do_frame_setup, __do_frame_takedown): New.
2718 * alpha/crtend.asm (.eh_frame): New ending.
2719 * alpha/elf.h (DWARF2_DEBUGGING_INFO): Define.
2720 (ASM_SPEC): Don't emit both dwarf2 and mdebug.
2721 (ASM_FILE_START): Don't emit .file for dwarf2.
2723 * rtl.h (enum reg_note): Add REG_FRAME_RELATED_EXPR.
2724 * rtl.c (reg_note_name): Likewise.
2725 * rtl.texi (REG_NOTES): Likewise.
2726 * dwarf2out.c (dwarf2out_frame_debug): Use it. Recognize a store
2727 without an offset.
2729 Sat Sep 5 14:47:17 1998 Richard Henderson <rth@cygnus.com>
2731 * i386.h (PREFERRED_RELOAD_CLASS): Standard fp constants load to TOS.
2732 * i386.md (movsf, movdf, movxf): Validate memory address returned
2733 from force_const_mem. Kill useless REG_EQUAL setting code.
2735 Sat Sep 5 14:23:31 1998 Torbjorn Granlund <tege@matematik.su.se>
2737 * m68k.md (zero_extendsidi2): Fix typo.
2739 Sat Sep 5 13:40:24 1998 Krister Walfridsson <cato@df.lth.se>
2741 * configure.in: Removed references to the removed file
2742 * config/xm-netbsd.h. Use ${cpu_type}/xm-netbsd.h for
2743 * arm*-*-netbsd* and ns32k-*-netbsd*.
2744 * config/i386/xm-netbsd.h: Removed unnecessary file.
2745 * config/m68k/xm-netbsd.h: Likewise.
2746 * config/sparc/xm-netbsd.h: Likewise.
2747 * config/mips/xm-netbsd.h: Likewise.
2749 Sat Aug 29 13:32:58 1998 Mumit Khan <khan@xraylith.wisc.edu>
2751 * i386/cygwin32.h (BIGGEST_ALIGNMENT): Define.
2752 (PCC_BITFIELD_TYPE_MATTERS): Define to be 0.
2754 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't check for
2755 for exact section attributions.
2757 * i386/mingw32.h (CPP_PREDEFINES): Add __MSVCRT__ for msvc
2758 runtime.
2759 * i386/crtdll.h (CPP_PREDEFINES): Define.
2761 Sat Sep 5 03:23:05 1998 Jeffrey A Law (law@cygnus.com)
2763 * m68k.md (5200 movqi): Do not allow byte sized memory references
2764 using address regs.
2765 * m68k.c (output_move_qimode): Do not use byte sized operations on
2766 address registers.
2768 * Makefile.in (pexecute.o): Use pexecute.c from libiberty. Provide
2769 explicit rules for building. Similarly for alloca, vfprintf,
2770 choose-temp and mkstemp, getopt, getopt1, and obstack.
2771 (INCLUDES): Add $(srcdir)/../include.
2772 * pexecute.c, alloca.c, vfprintf.c, choose-temp.c, mkstemp.c: Delete.
2773 * getopt.h, getopt.c getopt1.c, obstack.c, obstack.h: Likewise.
2775 Fri Sep 4 11:57:50 1998 Tom Tromey <tromey@cygnus.com>
2777 * gcc.c (do_spec_1): [case 'o'] Account for
2778 lang_specific_extra_outfiles.
2779 (main): Correctly clear all slots in outfiles for
2780 lang_specific_extra_outfiles. Set input_file_number before
2781 calling lang_specific_pre_link.
2783 Fri Sep 4 10:37:07 1998 Jim Wilson <wilson@cygnus.com>
2785 * loop.c (load_mems): Fix JUMP_LABEL field after for_each_rtx call.
2787 Fri Sep 4 02:01:05 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2789 * config/sparc/sparc.c (output_double_int): In all V9 symbolic
2790 cases, use xword.
2791 (sparc_output_deferred_case_vectors): If no work to do, return.
2792 Fix thinko in Sept 1 change.
2794 1998-09-03 SL Baur <steve@altair.xemacs.org>
2796 * Makefile.in: add semicolon in BISON definition for portability.
2798 Thu Sep 3 13:34:41 1998 Toon Moene <toon@moene.indiv.nluug.nl>
2800 * config/nextstep.c (handle_pragma): Correct name of third
2801 argument.
2803 Tue Sep 1 11:30:33 1998 Nick Clifton <nickc@cygnus.com>
2805 * config/m32r/m32r.md: Change (reg:CC 17) to (reg:SI 17).
2806 * config/m32r/m32r.h: Make register 17 be fixed.
2807 * config/m32r/m32r.c: Use SImode for cc operations.
2809 Thu Sep 3 18:17:34 1998 Benjamin Kosnik <bkoz@cygnus.com>
2811 * invoke.texi (Warning Options): Add -Wnon-template-friend
2812 documentation.
2814 Thu Sep 3 18:16:16 1998 Michael Meissner <meissner@cygnus.com>
2816 * rs6000.c (rs6000_override_options): Add -mcpu={401,e603e}.
2818 Thu Sep 3 18:05:16 1998 David Edelsohn <edelsohn@mhpcc.edu>
2820 * rs6000.md (movsf): Disable explicit secondary-reload-like
2821 functionality if TARGET_POWERPC64.
2822 (movdf): Remove TARGET_POWERPC64 explicit secondary-reload-like
2823 functionality.
2825 Thu Sep 3 11:41:40 1998 Robert Lipe <robertl@dgii.com>
2827 * fixinc.sco: Borrow code to wrap 'bool' typedefs from tinfo.h
2828 and term.h from fixinc.wrap.
2830 Thu Sep 3 09:47:31 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
2832 * aclocal.m4 (GCC_HEADER_STRING): New macro to detect if it is
2833 safe to include both string.h and strings.h together.
2834 (GCC_NEED_DECLARATION): Test STRING_WITH_STRINGS when deciding
2835 which headers to search for function declarations. Continue to
2836 prefer string.h over strings.h when both are not acceptable.
2838 * acconfig.h (STRING_WITH_STRINGS): Add stub.
2840 * configure.in: Call GCC_HEADER_STRING.
2842 * system.h: Test STRING_WITH_STRINGS when deciding which headers
2843 to include. Continue to prefer string.h over strings.h when both
2844 are not acceptable.
2846 Wed Sep 2 23:56:29 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2848 * config/sparc/sparc.c (output_double_int): If V9 and MEDLOW, do
2849 not assume top 32-bits of symbolic addresses are zero if
2850 flag_pic.
2852 Thu Sep 3 00:23:21 1998 Richard Henderson <rth@cygnus.com>
2854 * ginclude/va-alpha.h: Protect entire second portion of the
2855 file against double inclusion.
2857 Thu Sep 3 00:37:55 1998 Ovidiu Predescu <ovidiu@aracnet.com>
2859 Added support for the Boehm's garbage collector.
2860 * configure.in: Handle --enable-objc-gc.
2861 * configure: Rebuilt.
2862 * Makefile.in (CHECK_TARGETS): Add check-objc.
2863 (check-objc): New rule.
2864 * objc/Make-lang.in: Build a different Objective-C library that
2865 runs with the Boehm's collector.
2866 * objc/encoding.c (objc_round_acc_size_for_types): New function.
2867 * objc/encoding.c: Correctly compute the size of compound types in
2868 the presence of bitfields. Skip the variable name of the type if
2869 any. Added support for long long.
2870 * objc/encoding.h (_C_GCINVISIBLE): New specifier.
2871 (_F_GCINVISIBLE): New mask.
2872 * objc/gc.c: New file. Compute the type memory mask associated with
2873 a class based on the runtime information.
2874 * objc/misc.c: Added the hooks that use the Boehm's collector
2875 allocation functions.
2876 * objc/objc-act.c (build_class_template): Generate a new class
2877 member (gc_object_type) to hold the class' type memory mask.
2878 (build_shared_structure_initializer): Initialize the new member to
2879 NULL.
2880 (encode_complete_bitfield): New function. Generate the new
2881 encoding.
2882 (encode_field_decl): Generate the new encoding only for the GNU
2883 runtime.
2884 * objc/objc-api.h (_C_LNG_LNG, _C_ULNG_LNG): New specifiers for the
2885 long long types.
2886 (class_get_gc_object_type): New function to mark a pointer instance
2887 variable as a weak pointer.
2888 * objc/objc-features.texi: New file.
2889 * objc/objc.h (gc_object_type): New class member.
2890 * objc/objects.c (class_create_instance): Create a typed memory
2891 object when compiled with Boehm's collector support.
2892 * objc/sendmsg.c (__objc_init_install_dtable): Call
2893 __objc_send_initialize instead of setting the initialize flag.
2894 (__objc_send_initialize): Call __objc_generate_gc_type_description
2895 to generate the class type memory mask. Rewrite the code that
2896 sends the +initialize so that it is called only once (bug report
2897 and fix from Ronald Pijnacker <Ronald.Pijnacker@best.ms.philips.com>).
2898 * testsuite/objc: New testsuite for Objective-C type encoding.
2899 * testsuite/lib/objc-torture.exp: New file.
2900 * testsuite/lib/objc.exp: New file.
2902 Wed Sep 2 14:47:36 1998 Jim Wilson <wilson@cygnus.com>
2904 * jump.c (jump_optimize): In if/then/else transformations, add
2905 another call to modified_between_p for the jump insn.
2907 Wed Sep 2 14:16:49 1998 Jeffrey A Law (law@cygnus.com)
2909 * fix-header.c (symlink): Treat like readlink.
2911 Wed Sep 2 19:30:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
2913 * dwarfout.c (fundamental_type_code): Encode 32 bit floats/doubles
2914 as FT_float.
2916 Wed Sep 2 10:06:07 1998 Nick Clifton <nickc@cygnus.com>
2918 * config/nextstep.h: Update HANDLE_PRAGMA macro.
2919 * config/h8300/h8300.h: Update HANDLE_PRAGMA macro.
2920 * config/i960/i960.h: Update HANDLE_PRAGMA macro.
2922 * config/nextstep.c (handle_pragma): Take three arguments, as per
2923 the new HANDLE_PRAGMA macro specification.
2924 * config/h8300/h8300.c (handle_pragma): Take three arguments, as
2925 per the new HANDLE_PRAGMA macro specification.
2926 * config/i960/i960.c (process_pragma): Take three arguments, as
2927 per the new HANDLE_PRAGMA macro specification.
2929 Wed Sep 2 09:25:29 1998 Nick Clifton <nickc@cygnus.com>
2931 * c-lex.c (check_newline): Call HANDLE_PRAGMA before
2932 HANDLE_SYSV_PRAGMA if both are defined. Generate warning messages
2933 if unknown pragmas are encountered.
2934 (handle_sysv_pragma): Interpret return code from
2935 handle_pragma_token (). Return success/failure indication rather
2936 than next unprocessed character.
2937 (pragma_getc): New function: retrieves characters from the
2938 input stream. Defined when HANDLE_PRAGMA is enabled.
2939 (pragma_ungetc): New function: replaces characters back into the
2940 input stream. Defined when HANDLE_PRAGMA is enabled.
2942 * c-pragma.c (handle_pragma_token): Return success/failure status
2943 of the parse.
2945 * c-pragma.h: Change prototype of handle_pragma_token().
2947 * varasm.c: (handle_pragma_weak): Only create this function if
2948 HANDLE_PRAGMA_WEAK is defined.
2950 * c-common,c (decl_attributes): If defined call the expression
2951 contained within the INSERT_ATTRIBUTES macro before adding
2952 attributes to a decl.
2954 * tm.texi (HANDLE_PRAGMA): Document the new verion of
2955 HANDLE_PRAGMA, which takes three arguments.
2956 (INSERT_ATTRIBUTES): Document this new macro.
2958 * LANGUAGES: Document the new version of HANDLE_PRAGMA and the
2959 new INSERT_ATTRIBUTES macro.
2961 Wed Sep 2 02:03:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2963 * config/sparc/sparc.md (movdf): Only generate special RTL for
2964 LABEL_REFs when PIC.
2965 (move_label_di): Remove
2966 (movdi_pic_label_ref, movdi_high_pic_label_ref,
2967 movdi_lo_sum_pic_label_ref): New patterns for 64-bit label
2968 references when PIC.
2969 * config/sparc/sparc.h (ASM_OUTPUT_ADDR_VEC_ELT,
2970 ASM_OUTPUT_ADDR_DIFF_ELT): Don't do anything special for MEDLOW,
2971 output an .xword for all 64-bit cases.
2973 Tue Sep 1 15:55:17 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2975 * config/sparc/sparc.c (finalize_pic): Don't output arbitrary
2976 alignment, use FUNCTION_BOUNDARY instead.
2977 (sparc_output_deferred_case_vectors): Likewise.
2979 Mon Aug 31 17:25:41 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
2981 * config/sparc/sparc.md (movsf_const_intreg): Kill warning.
2982 (movtf_insn_sp64, movtf_no_e_insn_sp64): Reorder alternatives.
2984 Mon Aug 31 13:57:55 1998 Richard Henderson <rth@cygnus.com>
2986 * alpha/va_list.h: New file.
2987 * alpha/x-alpha (EXTRA_HEADERS): New. Add va_list.h.
2989 Mon Aug 31 14:55:02 1998 Jeffrey A Law (law@cygnus.com)
2991 * NEWS: Add SCO Openserver and Unixware 7 notes.
2993 * NEWS: Fix typos.
2995 Mon Aug 31 15:42:18 1998 Dave Brolley <brolley@cygnus.com>
2997 * varasm.c (compare_constant_1): Handle RANGE_EXPR.
2998 (record_constant_1): Handle RANGE_EXPR.
3000 Mon Aug 31 10:54:03 1998 Richard Henderson <rth@cygnus.com>
3002 * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
3003 * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
3004 and NOTE_INSN_RANGE_END specially.
3005 (reemit_notes): Likewise.
3007 Mon Aug 31 10:18:52 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3009 * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
3010 (ultrasparc_sched_init): Remove unneeded &.
3012 Mon Aug 31 10:47:16 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3014 * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
3015 for m68020-60, to prevent the use of fintrz.
3017 Sun Aug 30 22:17:20 1998 Mark Mitchell <mark@markmitchell.com>
3019 * configure.in: If the native compiler is GCC use $(WARN_CFLAGS)
3020 even in stage1.
3021 * Makefile.in: Likewise.
3022 * configure: Regenerated.
3024 Sun Aug 30 22:15:41 1998 H.J. Lu (hjl@gnu.org)
3026 * configure.in (gxx_include_dir): Changed to
3027 '${prefix}/include/g++'-${libstdcxx_interface}.
3028 * configure: Rebuilt.
3030 Sun Aug 30 20:19:43 1998 Hans-Peter Nilsson <hp@axis.se>
3032 * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
3033 consistent.
3034 * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
3035 *sequences* *below* which scalar moves will be used.
3037 Sun Aug 30 17:18:43 1998 Jeffrey A Law (law@cygnus.com)
3039 * collect2.c (mktemp): Delete unused declaration.
3041 * config/xm-netbsd.h: Remove unnecessary file.
3042 * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
3043 file anymore, it is not needed.
3045 Sun Aug 30 16:05:45 1998 Mark Mitchell <mark@markmitchell.com>
3047 * convert.c (convert_to_integer): Issue an error on conversions to
3048 incomplete types.
3050 Sun Aug 30 16:47:20 1998 Martin von Lvwis <loewis@informatik.hu-berlin.de>
3052 * Makefile.in: Add lang_tree_files and gencheck.h.
3053 * configure.in: Generate them.
3054 * gencheck.c: Include gencheck.h.
3056 Sat Aug 29 21:38:24 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3058 * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
3059 movdi_lo_sum_pic and movdi_high_pic and make visible.
3060 * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
3061 emit these when Pmode is not SImode.
3062 * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.
3064 Sat Aug 29 14:59:32 1998 Mumit Khan <khan@xraylith.wisc.edu>
3066 * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
3067 .linkonce directive after the first time.
3069 Sat Aug 29 12:39:56 1998 Jeffrey A Law (law@cygnus.com)
3071 * m68k.md (beq0_di): Generate correct (and more efficient) code when
3072 the clobbered operand overlaps with an input.
3073 (bne0_di): Similarly.
3075 * Makefile.in (INSTALL): Remove "--no-header" argument.
3077 * NEWS: Various updates.
3079 Fri Aug 28 19:00:44 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3081 * config/sparc/sparc.c (arith_operand, const64_operand,
3082 const64_high_operand, arith_double_4096_operand): Mark mode as
3083 unused.
3084 (create_simple_focus_bits): Remove unused arg highest_bit_set, all
3085 callers changed.
3086 (sparc_emit_set_const64): Remove unused variable i.
3087 (sparc_splitdi_legitimate): Likewise for addr_part.
3088 (ultra_code_from_mask): Likewise for mask.
3089 (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
3090 reverse return values so it matches usage and comments.
3091 (ultra_flush_pipeline): Likewise.
3092 (ultra_fpmode_conflict_exists): Likewise, remove unused variable
3093 this_type, and allow loads and stores of differing FP modes as
3094 they do not create a conflict.
3095 (ultra_find_type): Initialize fpmode to SFmode, fix
3096 parenthesization thinkos in large conditional.
3097 (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
3098 Init free_slot_mask after ultra_cur_hist is reset, not before.
3099 (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
3100 (ultrasparc_sched_reorder): Don't bzero current pipeline state,
3101 use ultra_flush_pipeline instead, then re-init group pointer.
3102 Fix statement with no effect. If no progress made in, and no
3103 instructions scheduled at all, advance to new pipeline cycle else
3104 we get into an endless loop.
3105 (ultrasparc_adjust_cost): Remove previous arg.
3106 * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
3108 Fri Aug 28 13:52:35 1998 Jim Wilson <wilson@cygnus.com>
3110 * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
3111 code. Use reg_overlap_mentioned_p to detect when source and
3112 destination overlap.
3113 (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.
3115 1998-08-28 Brendan Kehoe <brendan@cygnus.com>
3117 * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
3118 COMPARISON_VAL, into invariant_p.
3120 Fri Aug 28 15:13:25 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3122 * regmove.c (regclass_compatible_p): New function.
3123 (regmove_optimize): Use it.
3125 Use NREGS parameter insted of calling max_reg_num.
3127 (fixup_match_1): Don't use code = MINUS when later tieing with
3128 a hard register is likely.
3130 Fri Aug 28 14:54:07 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3132 * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
3133 COMPARISON_VAL was normalized.
3135 Thu Aug 27 20:10:46 1998 Jeffrey A Law (law@cygnus.com)
3137 * loop.c (check_dbra_loop): The loop ending comparison value
3138 must be an invariant or we can not reverse the loop.
3140 * loop.c (scan_loop): Count down from max_reg_num - 1 to
3141 FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
3142 of the loop.
3143 (load_mems_and_recount_loop_regs_set): Likewise.
3145 * i386.c (print_operand): Remove obsolete 'c' docs.
3147 Wed Aug 26 17:13:37 1998 Tom Tromey <tromey@cygnus.com>
3149 * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
3150 * frame.c (init_object_mutex): New function.
3151 (init_object_mutex_once): Likewise.
3152 (find_fde): Call it.
3153 (__register_frame_info): Likewise.
3154 (__register_frame_info_table): Likewise.
3155 (__deregister_frame_info): Likewise.
3157 Thu Aug 27 15:14:18 1998 Jeffrey A Law (law@cygnus.com)
3159 * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.
3161 Thu Aug 27 16:34:51 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3163 * loop.c (check_dbra_loop): Enable code for reversal
3164 of some loops without a known constant loop end.
3166 Wed Aug 26 18:38:15 1998 Richard Henderson <rth@cygnus.com>
3168 * haifa-sched.c (last_clock_var): New.
3169 (schedule_block): Initialize it.
3170 (schedule_insn): Use it to fill insn modes with issue information.
3172 * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
3173 Tag trapb and next insn with TImode.
3174 (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
3175 (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
3176 Invoke alphaev5_align_insns as appropriate.
3177 * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
3178 (MD_SCHED_VARIABLE_ISSUE): New.
3179 * alpha.md (attr type): Add multi.
3180 (define_asm_attributes): New.
3181 (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
3182 (arg_home): Likewise.
3183 (fnop, unop, realign): New.
3185 Wed Aug 26 15:55:41 1998 Jim Wilson <wilson@cygnus.com>
3187 * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
3188 * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.
3190 * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
3191 (rs6000-ibm-aix4.[12]*): Likewise.
3192 * configure: Regnerate.
3194 Wed Aug 26 09:30:59 1998 Nick Clifton <nickc@cygnus.com>
3196 * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
3197 already contains the return address.
3199 Wed Aug 26 12:57:09 1998 Jeffrey A Law (law@cygnus.com)
3201 * calls.c (expand_call): Use bitfield instructions to extract/deposit
3202 word sized hunks when loading unaligned args into registers.
3204 * haifa-sched.c (sched_analyze_insn): Only create scheduling
3205 barriers for LOOP, EH and SETJMP notes on the loop_notes list.
3207 * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.
3209 Wed Aug 26 16:35:37 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3211 * loop.c (check_dbra_loop): Add some code that would allow reversal
3212 of some loops without a known constant loop end if it were enabled.
3214 Wed Aug 26 11:08:44 1998 Gavin Romig-Koch <gavin@cygnus.com>
3216 * mips.md (lshrsi3_internal2+2): Fix type-o.
3218 Wed Aug 26 10:53:03 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3220 * system.h: Include stdarg.h/varargs.h, make sure they are ordered
3221 correctly with regards to stdio.h.
3223 * calls.c: Remove stdarg.h/varargs.h.
3224 * cccp.c: Likewise.
3225 * cexp.y: Likewise.
3226 * combine.c: Likewise.
3227 * cpperror.c: Likewise.
3228 * cpplib.c: Likewise.
3229 * cpplib.h: Likewise.
3230 * doprint.c: Likewise.
3231 * emit-rtl.c: Likewise.
3232 * final.c: Likewise.
3233 * fix-header.c: Likewise.
3234 * gcc.c: Likewise.
3235 * genattr.c: Likewise.
3236 * genattrtab.c: Likewise.
3237 * gencodes.c: Likewise.
3238 * genconfig.c: Likewise.
3239 * genemit.c: Likewise.
3240 * genextract.c: Likewise.
3241 * genflags.c: Likewise.
3242 * genopinit.c: Likewise.
3243 * genoutput.c: Likewise.
3244 * genpeep.c: Likewise.
3245 * genrecog.c: Likewise.
3246 * mips-tfile.c: Likewise.
3247 * prefix.c: Likewise.
3248 * protoize.c: Likewise.
3249 * regmove.c: Likewise.
3250 * toplev.c: Likewise.
3251 * tree.c: Likewise.
3253 Wed Aug 26 05:09:27 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3255 * config/sparc/sparc.c (sparc_override_options): If not
3256 TARGET_FPU, turn off TARGET_VIS.
3257 * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
3258 (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
3259 * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
3260 (movdi_insn_sp64): Add VIS fzero alternative.
3261 (clear_sf, clear_df): New VIS patterns.
3262 (movsf, movdf expanders): Allow fp_zero_operand flat out when
3263 TARGET_VIS.
3264 (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
3266 Tue Aug 25 10:57:41 1998 Mark Mitchell <mark@markmitchell.com>
3268 * loop.c (n_times_set, n_times_used, may_not_optimize,
3269 reg_single_usage): Convert to varrays. All uses changed.
3270 (insert_loop_mem): Return a value.
3271 (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
3272 (load_mems_and_recount_loop_regs_set): Likewise. Grow the arrays, if
3273 necessary.
3275 Tue Aug 25 23:57:12 1998 Jeffrey A Law (law@cygnus.com)
3277 * From Alexandre:
3278 * configure.in: Do not set thread_file to "irix" since no such
3279 support exists yet.
3281 * sparc.md (float abs/neg splits): Check reload_completed before
3282 calling alter_subreg.
3284 Tue Aug 25 19:17:59 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3286 * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
3287 function.
3288 * config/sparc/sparc.h: Declare it.
3289 * config/sparc/sparc.md (float abs/neg splits): Use it.
3290 (all other splits): Handle SUBREGs properly where necessary.
3291 (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.
3293 Tue Aug 25 19:48:46 1998 Jeffrey A Law (law@cygnus.com)
3295 * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
3296 an insn on the unfilled_slots_list that has no delay slots.
3297 (fill_eager_delay_slots): Similarly.
3299 Tue Aug 25 13:35:20 1998 Nick Clifton <nickc@cygnus.com>
3301 * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
3302 as an ordinary operand.
3304 Tue Aug 25 12:54:57 1998 Jason Merrill <jason@yorick.cygnus.com>
3306 * tree.c (valid_machine_attribute): Don't apply attributes to both
3307 decl and type.
3309 Tue Aug 25 12:23:20 PDT 1998 Richard Henderson <rth@cygnus.com>
3311 * reload.c (operands_match_p): Handle rtvecs.
3313 * i386.c (legitimate_pic_address_disp_p): New.
3314 (legitimate_address_p): Use it.
3315 (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
3316 Handle constant pool symbols just like statics.
3317 (emit_pic_move): Use Pmode not SImode for clarity.
3318 (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
3319 [UNSPEC]: New, handling what we killed above.
3320 [PLUS]: Detect and abort on invalid symbol arithmetic.
3321 * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.
3323 Tue Aug 25 12:02:23 1998 Mark Mitchell <mark@markmitchell.com>
3325 * alias.c: Include output.h.
3326 (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
3327 different if we're in a varargs function.
3328 * Makefile.in (alias.o): Depend on output.h
3330 Tue Aug 25 19:20:12 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3332 * sh.h (GIV_SORT_CRITERION): Delete.
3334 Tue Aug 25 13:19:46 1998 Dave Brolley <brolley@cygnus.com>
3336 * regclass.c (regclass): Use xmalloc/free instead of alloca.
3337 * stupid.c (stupid_life_analysis): Ditto.
3338 * reload1.c (reload): Ditto.
3340 Tue Aug 25 05:48:18 1998 Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
3342 * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
3343 arith_double_4096_operand, arith_double_add_operand): New
3344 predicates.
3345 * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
3346 * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
3347 them to transform add/sub 4096 into add/sub -4096.
3349 Mon Aug 24 23:31:03 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3351 * loop.c (scan_loop): Allocate some slop to handle pseudos
3352 generated by move_movables.
3353 (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
3354 here too.
3356 Mon Aug 24 19:45:40 1998 Jim Wilson <wilson@cygnus.com>
3358 * tree.def (DECL_RESULT): Correct documentation.
3360 Tue Aug 25 01:15:27 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3362 * reload1.c (reload_reg_free_before_p): New argument EQUIV; Changed
3363 all callers. Abort for RELOAD_FOR_INSN. RELOAD_FOR_OUTADDR_ADDR:
3364 conflicts will all RELOAD_FOR_OUTPUT reloads.
3366 * reload1.c (reload_cse_regs_1): When deleting a no-op move that
3367 loads the function result, substitute with a USE.
3369 Mon Aug 24 15:20:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
3371 * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
3372 when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
3373 (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
3374 * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
3375 (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
3376 * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
3377 operand.
3378 (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
3379 'o' to 'm' for GPR variant constraints.
3381 Mon Aug 24 10:25:46 1998 Jeffrey A Law (law@cygnus.com)
3383 * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.
3385 * h8300.h (STRIP_NAME_ENCODING): Fix typo.
3387 * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
3388 when the source and destination overlap.
3390 * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
3391 clash with global type.
3393 Mon Aug 24 00:53:53 1998 Jason Merrill <jason@yorick.cygnus.com>
3395 * fixinc.irix: Add curses.h handling from fixinc.wrap.
3397 * c-common.c (combine_strings): Also set TREE_READONLY.
3398 Change warn_write_strings to flag_const_strings.
3399 * c-decl.c, c-tree.h: Likewise.
3401 Sun Aug 23 18:39:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3403 * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
3404 CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
3405 sequence, use SET/IOR instead so CSE can see it.
3406 * config/sparc/sparc.md (movhi_const64_special,
3407 movsi_const64_special): New patterns necessitated by that change.
3408 (movhi_high): Remove.
3409 (movhi_lo_sum): Change to match an IOR.
3410 (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
3411 (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
3412 (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
3413 (movdf splits): Allow when not V9 or when not ARCH64 and integer
3414 registers are involved.
3415 (snesi_zero_extend split): Remove reload_completed test.
3416 (unnamed plus and minus zero_extend sidi splits): Add it.
3418 Sun Aug 23 11:56:08 1998 Mark Mitchell <mark@markmitchell.com>
3420 * extend.texi: Remove description of extension to explicit
3421 instantiation that is now endorsed by standard C++.
3423 Sun Aug 23 09:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3425 * config/arc/arc.c (arc_initialize_pic): Remove.
3426 * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
3427 nothing on any platform and is invoked by no-one, it does not even
3428 appear in the documentation.
3429 * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
3430 * config/sparc/sparc.c (initialize_pic): Likewise.
3431 (find_addr_reg): Remove this as well, no longer referenced after
3432 my rewrite.
3434 Sun Aug 23 00:17:14 1998 Jeffrey A Law (law@cygnus.com)
3436 * recog.c (validate_replace_rtx_group): New function.
3437 * recog.h (validate_replace_rtx_group): Declare it.
3438 * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
3439 the entire group of substitutions.
3441 Sat Aug 22 23:31:00 1998 Klaus-Georg Adams (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)
3443 * loop.c (load_mems): Fix initializers.
3445 Fri Aug 21 23:07:46 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3447 * config/sparc/sparc.md (TFmode splits): Handle destination
3448 registers being referenced in the address correctly.
3450 * expmed.c (make_tree) [CONST_INT]: Sign extend even if
3451 TREE_UNSIGNED, when bitsize of type's mode is larger than
3452 HOST_BITS_PER_WIDE_INT.
3454 Fri Aug 21 19:31:31 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
3456 * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
3457 * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
3458 EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
3459 macros.
3460 * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
3461 EXIT_BLOCK_EXPR.
3463 Thu Aug 20 19:43:44 1998 Jeffrey A Law (law@cygnus.com)
3465 * h8300.c (h8300_encode_label): Use '&' for tiny data items.
3466 * h8300.h (TINY_DATA_NAME_P): Likewise.
3467 (STRIP_NAME_ENCODING): Handle '&'.
3469 * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
3470 register (it could be accessed via an outer SUBREG).
3471 (REG_OK_FOR_BASE_P): Likewwise.
3472 (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.
3474 * remove.c (optimize_reg_copy_3): Abort instead of silently generating
3475 bogus rtl.
3477 * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.
3479 Thu Aug 20 17:35:20 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3481 * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
3482 must be offsettable so the splits can be made.
3484 Thu Aug 20 13:56:53 1998 Michael Meissner <meissner@cygnus.com>
3486 * config/i386/winnt.c: Include system.h, not stdio.h to get
3487 sys/param.h pulled in before rtl.h in case the system defines MIN
3488 and MAX.
3490 Thu Aug 20 13:44:20 1998 David Edelsohn <edelsohn@mhpcc.edu>
3492 * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.
3494 Thu Aug 20 13:15:11 1998 Dave Brolley <brolley@cygnus.com>
3496 * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
3497 arrays of bits.
3498 * cpplib.c (cpp_define): Handle macros with parameters.
3500 Wed Aug 19 21:33:19 1998 David Edelsohn <edelsohn@mhpcc.edu>
3502 * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
3503 (output_toc): Use single TOC slot or llong minimal-toc for DFmode
3504 and DImode 64-bit. Use llong for minimal-toc SFmode and
3505 SYMBOL_REF / LABEL_REF 64-bit.
3506 (output_function_profiler): Use llong for profiler label and ld to
3507 load 64-bit label address.
3509 Wed Aug 19 17:52:27 1998 Nick Clifton (nickc@cygnus.com)
3511 * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
3512 OFFSET addressing.
3514 Wed Aug 19 14:13:31 PDT 1998 Jeff Law (law@cygnus.com)
3516 * version.c: Bump for snapshot.
3518 Wed Aug 19 13:10:30 PDT 1998 Jeff Law (law@cygnus.com)
3520 * version.c: Bump for snapshot.
3522 Wed Aug 19 13:06:47 1998 Jason Merrill <jason@yorick.cygnus.com>
3524 * collect2.c (extract_init_priority): Use atoi instead of strtoul.
3526 Wed Aug 19 13:51:35 1998 Hans-Peter Nilsson <hp@axis.se>
3528 * tm.texi (Misc): Fix typo "teh".
3530 * tm.texi (PIC): Fix typo "PPIC".
3532 * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
3533 effect when -O2 and higher.
3534 * invoke.texi (Optimize Options): Likewise for -fcaller-saves.
3536 1998-08-19 Michael Hayes <michaelh@ongaonga.chch.cri.nz>
3538 * regclass.c: Changed register set documentation to be consistent
3539 with GCC behaviour.
3541 * final.c (final_start_function) Removed redundant test for
3542 call_fixed_regs.
3544 Wed Aug 19 13:28:41 1998 Mark Mitchell <mark@markmitchell.com>
3546 * rtl.h (rtx_function): New type.
3547 (for_each_rtx): New function.
3548 * rtlanal.c (for_each_rtx): Define it.
3550 * recog.c (change_t): New type.
3551 (change_objects, change_old_codes, change_locs, change_olds):
3552 Replace with ...
3553 (changes): New variable.
3554 (validate_change): Dynamically allocate room for more changes, if
3555 necessary. Uses changes array instead of change_objects, etc.
3556 (apply_change_group): Use changes array instead of
3557 change_objects, etc.
3559 * loop.c (loop_mem_info): New type.
3560 (loop_mems): New variable.
3561 (loop_mems_idx): Likewise.
3562 (looop_mems_allocated): Likewise.
3563 (scan_loop): Remove nregs parameter.
3564 (next_insn_in_loop): New function.
3565 (load_mems_and_recount_loop_regs_set): Likewise.
3566 (load_mems): Likewise.
3567 (insert_loop_mem): Likewise.
3568 (replace_loop_mem): Likewise.
3569 (replace_label): Likewise.
3570 (INSN_IN_RANGE_P): New macro.
3571 (loop_optimize): Don't pass max_reg_num() to scan_loop.
3572 (scan_loop): Remove nregs parameter, compute it after any new
3573 registers are created by load_mems. Use INSN_IN_RANGE_P and
3574 next_insn_in_loop rather than expanding them inline. Call
3575 load_mems to load memory into pseudos, if appropriate.
3576 (prescan_loop): Figure out whether or not there are jumps from the
3577 loop to targets other than the label immediately following the
3578 loop. Call insert_loop_mem to notice all the MEMs used in the
3579 loop, if it could be safe to pull MEMs into REGs for the duration
3580 of the loop.
3581 (strength_reduce): Use next_insn_in_loop. Tweak comments.
3583 Wed Aug 19 08:29:44 1998 Richard Earnshaw (rearnsha@arm.com)
3585 * arm.c (arm_override_options): Remove lie about ignoring PIC flag.
3587 Wed Aug 19 07:08:15 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3589 * config/sparc/sparc.c (finalize_pic): Check for the correct
3590 nonlocal_goto_receiver UNSPEC number.
3591 * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
3592 making note of this dependency existing in sparc.c
3593 (negtf2_notv9 split): Give NEG SFmode.
3594 (negsf2): Fix insn output string.
3596 Tue Aug 18 12:40:27 1998 Richard Henderson <rth@cygnus.com>
3598 * c-common.c (decl_attributes): Issue an error if the argument
3599 to alias is not a string.
3601 Tue Aug 18 10:33:30 1998 Jeffrey A Law (law@cygnus.com)
3603 * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
3604 pending memory flush list.
3606 * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
3607 notes.
3608 (try_combine): Allow combining insns with REG_LIBCALL notes.
3610 * expr.c (emit_block_move): Do not call memcpy as a libcall
3611 instead build up a CALL_EXPR and call it like any other
3612 function.
3613 (clear_storage): Similarly for memset.
3615 * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
3616 on notes.
3618 * Makefile.in (cplus-dem.o): Provide explicit rules for building
3619 cplus-dem.o
3621 * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
3622 and REG_LIVE_LENGTH as successful substitutions are made.
3624 Tue Aug 18 07:15:27 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3626 * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
3627 statement after end of loop label.
3629 Tue Aug 18 07:13:27 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3631 * config/sparc/sparc.c (ultra_types_avail): New variable.
3632 (ultra_build_types_avail): New function to record mask of insn
3633 types in ready list at this cycle.
3634 (ultrasparc_sched_reorder): Call it.
3635 (ultra_find_type): Use it to quicken the search. Also simplif
3636 dependency check, don't use rtx_equal_p because we know exactly
3637 what we are looking for.
3639 Tue Aug 18 03:20:53 1998 Richard Earnshaw (rearnsha@arm.com)
3641 * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
3642 for architecture v4.
3644 Mon Aug 17 21:26:38 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3646 * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
3647 gen_compare_reg.
3648 (movsf_const_intreg, movsf_const_high, movsf_const_lo,
3649 movdf_const_intreg and helper splits): New patterns to move float
3650 constants into integer registers.
3651 (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
3652 splits.
3654 Mon Aug 17 11:46:19 1998 Jeffrey A Law (law@cygnus.com)
3656 * From Graham
3657 * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
3658 to itype.
3659 * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.
3661 * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
3662 a BASE_REGS register is needed as an intermediate when copying
3663 a symbolic value into any register class other than BASE_REGS.
3665 * expr.c (move_by_pieces): No longer static. Remove prototype.
3666 * rtl.h (move_by_pieces): Add extern prototype.
3667 * mips.c (expand_block_move): Handle aligned straight line copy by
3668 calling move_by_pieces.
3670 * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
3671 and VAR_DECLs.
3673 Mon Aug 17 10:28:52 1998 Mark Mitchell <mark@markmitchell.com>
3675 * stmt.c (expand_end_loop): Tidy. Allow unconditional
3676 jumps out of the loop to be treated as part of the exit test.
3678 Mon Aug 17 10:06:11 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
3679 Jeff Law <law@cygnus.com>
3681 * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
3682 * cplus-dem.c: Delete.
3684 * Makefile.in (fold-const.o): depend on $(RTL_H).
3686 * fold-const.c: Include rtl.h to get the prototype for
3687 `set_identifier_local_value'.
3689 * loop.c (express_from_1): Remove unused variable `tmp'.
3690 (combine_givs): cast the first argument of bzero to char *.
3692 * toplev.c (display_help): Remove unused variable `looking_for_start'.
3694 * c-decl.c (init_decl_processing): Remove unneeded &.
3696 * alpha.h (alpha_initialize_trampoline): Provide prototype.
3698 * except.c (set_exception_lang_code, set_exception_version_code):
3699 Change parameter from `short' to `int' to avoid using a gcc
3700 extension.
3702 * except.h (set_exception_lang_code, set_exception_version_code):
3703 Likewise for prototypes.
3705 * flow.c (count_reg_references): Remove unused variables `regno'
3706 and `i'.
3708 * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.
3710 * prefix.c (translate_name): Cast the result of `alloca'.
3712 * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.
3714 Mon Aug 17 09:23:42 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3716 * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
3717 Include "toplev.h".
3718 (valid_dbcc_comparison_p): Mark mode argument as unused.
3719 (symbolic_operand): Likewise.
3720 (legitimize_pic_address): Likewise.
3721 (const_uint32_operand): Likewise.
3722 (const_sint32_operand): Likewise.
3723 * sched.c [!INSN_SCHEDULING]: Define only dummy function
3724 schedule_insns and comment out rest of file.
3726 * m68k.c (output_move_simode_const): Use subl to move a zero into an
3727 address register.
3728 (output_move_[hq]imode): Likewise.
3730 Mon Aug 17 09:15:47 1998 Jeffrey A Law (law@cygnus.com)
3732 * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
3733 * invoke.texi: Corresponding changes.
3735 Mon Aug 17 02:03:55 1998 Richard Henderson <rth@cygnus.com>
3737 * regclass.c (allocate_reg_info): Respect MIN when clearing data.
3739 Sun Aug 16 17:37:06 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3741 * config/sparc/sparc.c (ultra_code_from_mask,
3742 ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
3743 ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
3744 ultrasparc_sched_init, ultrasparc_variable_issue,
3745 ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
3746 functions to describe UltraSPARC pipeline exactly to Haifa.
3747 (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
3748 as there is nothing the scheduler can do about it. Indicate that
3749 REG_DEP_OUTPUT's collide. Fixup formatting.
3750 * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
3751 divide costs on Ultra for DImode.
3752 (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
3753 Define.
3754 * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
3755 ieuN and add call_no_delay_slot to type list.
3756 (cti function unit): New unit for branches on UltraSPARC.
3757 (subx/addx insns): Set type to misc.
3758 (sidi zero/sign extension insns on arch64): Set type to shift.
3759 (sign_extendhidi2_insn): Set type to sload.
3761 Sun Aug 16 13:52:00 1998 David Edelsohn <edelsohn@mhpcc.edu>
3763 * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
3764 (output_epilog): Use if != 0 for offset.
3765 (rs6000_fatal_bad_address): Prepare for Intl.
3766 * rs6000.h (rs6000_fatal_bad_address): Declare.
3767 * rs6000.md (movsfcc, movdfcc): Use else if.
3768 (elf_high): Use {liu|lis}.
3769 (elf_low): Use {cal|la}. Remove %a template from old mnemonics.
3770 (movsi): Use rs6000_fatal_bad_address.
3772 Sun Aug 16 01:53:21 1998 Richard Henderson <rth@cygnus.com>
3774 * reload.c (find_equiv_reg): Reject equivalences separated
3775 by a volatile instruction.
3777 Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
3779 * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.
3781 Sat Aug 15 20:51:35 1998 Richard Henderson <rth@cygnus.com>
3783 * alpha.md (movsicc): Fix mode mismatch.
3785 Sat Aug 15 20:22:33 1998 H.J. Lu (hjl@gnu.org)
3787 * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
3788 return type.
3789 * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.
3791 Sat Aug 15 08:39:49 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3793 * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
3794 write-only modifier from operand 1 constraint.
3796 Sat Aug 15 06:28:19 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3798 * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
3799 emitting a XOR of -1 at the end, emit a NOT instead for combine's
3800 sake.
3801 (sparc_emit_set_const64): Likewise, also when computing trailing
3802 bits do not negate low_bits and make fast_int an int.
3804 Fri Aug 14 21:07:03 1998 Jeffrey A Law (law@cygnus.com)
3806 * loop.c (add_label_notes): Do not ignore references to labels
3807 before dispatch tables. Mirrors Apr 8 change to mark_jump_label.
3808 * gcse.c (add_label_notes): Similarly.
3810 * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.
3812 * m68k.md (adddi_dilshr32): One of the operands must be a register.
3813 (adddi_dishl32): Similarly.
3815 Fri Aug 14 14:12:59 1998 Jason Merrill <jason@yorick.cygnus.com>
3817 * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
3818 * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
3819 * cse.c (cse_basic_block): Add parens to shut up warnings.
3821 Fri Aug 14 12:58:21 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3823 * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
3824 sparc_emit_set_const64_longway, const64_is_2insns,
3825 create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
3826 in 64-bit constant formation.
3827 * config/sparc/sparc.md (snesi_zero_extend split): Generate
3828 rtl for addx not subx.
3829 (define_insn movdi_const64_special): Make available even when
3830 HOST_BITS_PER_WIDE_INT is not 64.
3831 (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
3832 (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
3833 (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
3834 instances of operand 1 inside a QI subreg.
3835 (xordi3_sp64_dbl): Remove '%' constraint for op1.
3836 (one_cmpldi2_sp64): Fix output string.
3837 (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
3838 alternative case.
3839 (unnamed arch64 ashift DI): Truncate shift count if greater than
3840 63, not 31.
3842 Fri Aug 14 21:52:53 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
3844 * expr.c (store_expr): Don't optimize away load-store pair
3845 when either source or destination have a side effect.
3847 Fri Aug 14 16:50:10 1998 John Carr <jfc@mit.edu>
3849 * genrecog.c (add_to_sequence): Fatal error if the modes of the
3850 operands of SET are incompatible.
3852 * alpha.md: Fix max and min patterns so modes of SET operands match.
3854 Fri Aug 14 12:22:55 1998 Ian Lance Taylor <ian@cygnus.com>
3856 * configure.in: Avoid [[ by using test and changequote.
3857 * configure: Rebuild.
3859 Fri Aug 14 01:22:31 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3861 * rtl.def (CONSTANT_P_RTX): Fix typo in string name.
3863 * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
3864 seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
3865 split, snedi_zero_trunc and split, seqsi_zero_extend and split,
3866 seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
3867 movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
3868 split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
3869 Fix mismatching modes in SET operands.
3870 (conditional move patterns): Fix formatting.
3871 (unnamed subx arch64 pattern): Remove duplicate insn.
3873 Fri Aug 14 00:34:34 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3875 * config/sparc/sparc.c (const64_operand, const64_high_operand):
3876 Get it right when HOST_BITS_PER_WIDE_INT is not 64.
3877 (input_operand): Fixup test for what we accept for constant
3878 integers.
3879 (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
3880 set VOIDmode.
3881 (safe_constDI): Remove.
3882 (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
3883 gen_safe_XOR64): New functions.
3884 (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
3885 sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
3886 them.
3887 * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
3888 available when HOST_BITS_PER_WIDE_INT is not 64.
3889 (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
3890 move before movdi_insn_sp64 pattern.
3891 (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
3892 (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
3893 symbolic_operand as predicate for second operand.
3894 (DImode minus split on arch32, negsi2 expander, one_cmplsi2
3895 expander): Give set VOIDmode.
3897 Fri Aug 14 01:45:06 1998 Mumit Khan <khan@xraylith.wisc.edu>
3899 * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.
3901 Fri Aug 14 01:40:21 1998 Geoffrey Keating <geoffk@ozemail.com.au>
3903 * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.
3905 Fri Aug 14 01:23:23 1998 Richard Earnshaw (rearnsha@arm.com)
3907 * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating
3908 point.
3909 (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.
3911 Fri Aug 14 01:19:08 1998 Robert Lipe <robertl@dgii.com>
3913 * install.texi: Various SCO OpenServer tweaks.
3915 Thu Aug 13 20:14:40 1998 Jim Wilson <wilson@cygnus.com>
3917 * reload1.c (eliminate_regs_in_insn): Handle another case when
3918 eliminating the frame pointer to the hard frame pointer. Add
3919 missing ep->to_rtx check to one existing case.
3921 * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.
3923 Thu Aug 13 17:08:11 1998 Jason Merrill <jason@yorick.cygnus.com>
3925 * tree.h: De-conditionalize init_priority code.
3927 * mips.h (NM_FLAGS): Change from -Bp to -Bn.
3928 * collect2.c (NM_FLAGS): Change from -p to -n.
3930 * configure.in: Turn on collect2 for mipstx39-elf.
3931 Handle use_collect2=no properly.
3933 * c-common.c: De-conditionalize init_priority code.
3934 * collect2.c (extract_init_priority, sort_ids): New fns.
3935 (main): Call sort_ids.
3936 Move sequence_number to file scope.
3938 * configure.in: Handle --enable-init-priority.
3939 * c-common.c (attrs): Add A_INIT_PRIORITY.
3940 (init_attributes, decl_attributes): Likewise.
3941 * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
3942 * tree.c (get_file_function_name_long): Split out...
3943 (get_file_function_name): ...from here.
3945 Thu Aug 13 16:09:53 1998 Martin von Loewis <loewis@informatik.hu-berlin.de>
3947 * expr.c (safe_from_p): Change code to ERROR_MARK only when not
3948 accessing nodes.
3950 Thu Aug 13 15:24:48 1998 Jason Merrill <jason@yorick.cygnus.com>
3952 * toplev.c (display_help): Add braces to shut up warnings.
3953 * tree.c (simple_cst_equal): Likewise.
3955 * fold-const.c (non_lvalue): Don't deal with null pointer
3956 constants here.
3957 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
3959 * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
3960 of any size to a pointer.
3962 Thu Aug 13 12:53:13 1998 Jim Wilson <wilson@cygnus.com>
3964 * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.
3966 Wed Aug 12 17:25:18 1998 Jeffrey A Law (law@cygnus.com)
3968 * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
3969 which will be saved.
3970 * mn10300.md (prologue insn): Only save registers which need saving.
3971 (epilogue insn): Similarly.
3973 * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
3974 optimizations.
3976 Wed Aug 12 12:39:16 1998 Gavin Romig-Koch <gavin@cygnus.com>
3978 * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
3979 VAR_DECL's in gp addressable sections.
3981 Tue Aug 11 23:02:31 1998 John Carr <jfc@mit.edu>
3983 * sparc.c: Change return <exp> to <exp>; return; in functions
3984 returning void.
3985 * sparc.md: Add empty semicolon statement after final label in
3986 move expanders.
3988 Tue Aug 11 22:42:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
3990 * config/sparc/sparc.md (define_insn addx_extend): Rename to
3991 addx_extend_sp64, only allow when TARGET_ARCH64.
3992 (define_insn addx_extend_sp32 and split): Version that works when
3993 not TARGET_ARCH64.
3994 (define_insn subx_extend): Likewise.
3995 (define_split adddi3 and subdi3 with zero extension): Fixup and
3996 correct bugs when not TARGET_ARCH64.
3998 Tue Aug 11 16:04:34 1998 John Carr <jfc@mit.edu>
4000 * except.c (set_exception_lang_code, set_exception_version_code):
4001 Use prototype-style definition if __STDC__, to match declaration
4002 in except.h.
4004 * genemit.c: Change FAIL and DONE macros not to use loops.
4006 Tue Aug 11 12:27:03 1998 Jim Wilson <wilson@cygnus.com>
4008 * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
4009 ASM_OUTPUT_DWARF2_ADDR_CONST if defined.
4011 * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.
4013 Tue Aug 11 18:12:53 1998 Dave Love <d.love@dl.ac.uk>
4015 * README.g77: Update from Craig.
4017 Tue Aug 11 04:46:01 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4019 * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
4020 type HOST_WIDE_INT.
4021 (safe_constDI sparc_emit_set_const64_quick1,
4022 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
4023 analyze_64bit_constant, const64_is_2insns,
4024 create_simple_focus_bits): Fix some bugs when compiled on real
4025 64-bit hosts.
4026 (function_arg_record_value_3, function_arg_record_value_2,
4027 function_arg_record_value): Add fully prototyped forward decls.
4028 * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
4029 to cmpsi_insn and use on both 64 and 32 bit targets.
4030 (define_insn cmpsi_insn_sp64): Remove.
4031 (define_expand zero_extendsidi2): Allow for 32-bit target too.
4032 (define_insn zero_extendsidi2_insn): Rename to
4033 zero_extendsidi2_insn_sp64.
4034 (define_insn zero_extendsidi2_insn_sp32): New pattern and
4035 assosciated forced split for it.
4037 * config/sparc/sparc.c (const64_operand, const64_high_operand):
4038 New predicates.
4039 * config/sparc/sparc.h: Declare them.
4040 (PREDICATE_CODES): Add them.
4041 * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
4042 movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.
4044 Mon Aug 10 22:57:24 1998 John Carr <jfc@mit.edu>
4046 * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
4047 in v9 case as the latter makes the Solaris assembler crash.
4049 Mon Aug 10 22:39:09 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4051 * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
4052 for TFmode when !v9. We require offsettable memory addresses.
4053 * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
4054 DFmode register number conversions.
4055 * config/sparc/sparc.md (define_split DFmode moves): If register
4056 is a SUBREG do alter_subreg on it before using.
4057 (define_expand movtf): Fixup comment about alignment on v9.
4058 (define_split TFmode moves): Don't use gen_{high,low}part, create
4059 explicit SUBREGs instead.
4061 Mon Aug 10 19:02:55 1998 John Carr <jfc@mit.edu>
4063 * Makefile.in (mbchar.o): Depend on mbchar.c.
4065 Mon Aug 10 04:28:13 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4066 Richard Henderson <rth@cygnus.com>
4068 Rewrite Sparc backend for better code generation and
4069 improved sparc64 support.
4070 * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
4071 zero.
4072 * config/sparc/sysv4.h: Likewise.
4073 * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
4074 move_operand, v8plus_regcmp_op, emit_move_sequence,
4075 singlemove_string, doublemove_string, mem_aligned_8,
4076 output_move_double, output_move_quad, output_fp_move_double,
4077 move_quad_direction, output_fp_move_quad, output_scc_insn):
4078 Remove.
4079 (small_int_or_double): New predicate.
4080 (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
4081 (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
4082 old pic_{sethi,lo_sum}_si patterns.
4083 (mem_min_alignment): New generic function to replace
4084 mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
4085 available and can test for arbitrary alignments. All callers
4086 changed.
4087 (save_regs, restore_regs, build_big_number,
4088 output_function_prologue, output_cbranch, output_return,
4089 sparc_flat_save_restore, sparc_flat_output_function_prologue,
4090 sparc_flat_output_function_epilogue): Prettify
4091 insn output.
4092 (output_function_epilogue): Likewise and add code to output
4093 deferred case vectors.
4094 (output_v9branch): Likewise, add new arg INSN and use it to tack
4095 on branch prediction settings. All callers changed.
4096 (print_operand): Likewise and output %l44 for LO_SUMs when
4097 TARGET_CM_MEDMID.
4098 (sparc_splitdi_legitimate): New function to make sure DImode
4099 splits can be run properly when !arch64.
4100 (sparc_initialize_trampoline, sparc64_initialize_trampoline):
4101 Reformat example code in comments.
4102 (set_extends): Remove UNSPEC/v8plus_clear_high case.
4103 (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
4104 of deferred case vectors we need to output.
4105 (sparc_defer_case_vector): Record a case vector.
4106 (sparc_output_addr_vec, sparc_output_addr_diff_vec,
4107 sparc_output_deferred_case_vectors): New functions to output them.
4108 (sparc_emit_set_const32): New function to form 32-bit constants in
4109 registers when that requires more than one instruction.
4110 (safe_constDI, sparc_emit_set_const64_quick1,
4111 sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
4112 analyze_64bit_constant, const64_is_2insns,
4113 create_simple_focus_bits, sparc_emit_set_const64): New functions
4114 which do the same for 64-bit constants when arch64.
4115 (sparc_emit_set_symbolic_const64): New function to emit address
4116 loading for all code models on v9.
4117 * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
4118 %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
4119 (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
4120 (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
4121 inaccuracies in comments, add symbolic and text_segment operands
4122 when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively. Use
4123 GENERAL_REGS in these cases as a temp REG is needed to load these
4124 addresses into a register properly.
4125 (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
4126 is no longer used.
4127 (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
4128 quads are guarenteed to have 16-byte alignment.
4129 (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
4130 copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
4131 (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
4132 deferred case vector implementation.
4133 (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
4134 (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
4135 Generate "internal label - label" instead of "label - 1b".
4136 (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
4137 (PREDICATE_CODES): Remove sparc_operand, move_operand,
4138 v8plus_regcmp_op. Add small_int_or_double, input_operand, and
4139 zero_operand.
4140 (doublemove_string, output_block_move, output_fp_move_double,
4141 output_fp_move_quad, output_move_double, output_move_quad,
4142 output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
4143 sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
4144 (sparc_emit_set_const32, sparc_emit_set_const64,
4145 sparc_emit_set_symbolic_const64, input_operand, zero_operand,
4146 mem_min_alignment, small_int_or_double): Add externs.
4147 * config/sparc/sparc.md: Document the many uses of UNSPEC and
4148 UNSPEC_VOLATILE in this backend.
4149 (define_function_unit ieu): Rename to ieu_unnamed. Add move and
4150 unary to types which execute in it.
4151 (define_function_unit ieu_shift): Rename to ieu0.
4152 (define_function_unit ieu1): New, executes compare, call, and
4153 uncond_branch type insns.
4154 (define_function_units for type fdivs, fdivd, fsqrt): These
4155 execute in the fpu multiply unit not the adder on UltraSparc.
4156 (define_expand cmpdi): Disallow TARGET_V8PLUS.
4157 (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
4158 (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
4159 allows the arith_double_operand predicate and rHI constraint when
4160 TARGET_ARCH64.
4161 (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
4162 cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
4163 neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
4164 sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
4165 sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
4166 movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
4167 movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
4168 movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
4169 movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
4170 cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
4171 sign_extendqihi2_insn, sign_extendqisi2_insn,
4172 sign_extendqidi2_insn, sign_extendhidi2_insn,
4173 extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
4174 trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
4175 floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
4176 fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
4177 adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
4178 subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
4179 muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
4180 const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
4181 smulsi3_highpart_v8plus, unnamed subreg mult,
4182 const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
4183 const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
4184 const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
4185 const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
4186 const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
4187 udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
4188 andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
4189 or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
4190 xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
4191 cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
4192 cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
4193 cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
4194 cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
4195 cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
4196 cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
4197 addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
4198 muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
4199 negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
4200 ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
4201 cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
4202 ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
4203 lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
4204 call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
4205 call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
4206 call_address_untyped_struct_value_sp32,
4207 call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
4208 call_value_symbolic_sp32, call_value_address_sp64,
4209 call_value_symbolic_sp64, branch_sp32, branch_sp64,
4210 flush_register_windows, goto_handler_and_restore,
4211 goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
4212 flush, all ldd/std peepholes, return_qi, return_hi, return_si,
4213 return_addsi, return_di, return_adddi, return_sf, all call+jump
4214 peepholes, trap, unnamed trap insns): Prettify output strings.
4215 (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
4216 or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
4217 Likewise and force + implement splits for integer cases.
4218 (define_insn return_sf_no_fpu): Likewise and allow to match when
4219 no-fpu because of our subreg SFmode splits.
4220 (define_insn zero_extendqihi2, zero_extendqisi2_insn,
4221 zero_extendqidi2_insn, zero_extendhidi2_insn,
4222 zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
4223 input_operand for second operand.
4224 (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
4225 reg_or_0_operand for operand 2 so new splits can use it.
4226 (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
4227 cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
4228 too.
4229 (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
4230 CONST_DOUBLEs for operand 2.
4231 (define_insn move_label_di): Likewise and label distance
4232 optimization because it no longer works with new deferred case
4233 vector scheme. To be revisited.
4234 (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
4235 and allow reg_or_0_operand and J constraint for second operand.
4236 (define_insn jump): Set branch predict taken on V9.
4237 (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
4238 new deferred case vector scheme.
4239 (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
4240 (define_insn negdi2_sp32): Force + implement splits.
4241 (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
4242 one_cmplsi2_not_liveg0 respectively, and create expander of original
4243 names which emit special rtl for TARGET_LIVE_G0.
4244 (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
4245 (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
4246 gen_compare_reg, FAIL instead.
4247 (define_insn sgtu, sleu): Likewise and check gen_s*() return
4248 values when trying to reverse condition codes, if they FAIL then
4249 do likewise.
4250 (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
4251 snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
4252 neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
4253 seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
4254 x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
4255 set output string to # to indicate they are mandatory splits.
4256 (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
4257 pic_sethi_di, move_pic_label_si): Remove.
4258 (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
4259 movsi_high_pic, movsi_pic_label_reg): New patterns to take their
4260 place.
4261 (define_expand movsi_pic_label_ref, define_insn
4262 movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
4263 expander and insns to handle PIC label references and deferred
4264 case vectors.
4265 (define_insn get_pc_via_rdpc): Comment out as it is no longer
4266 used.
4267 (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
4268 Rewrite to not use emit_move_sequence, make use of new constant
4269 formation code, and new splits for all multi-insn cases.
4270 (define_insn movqi_insn): Remove sethi case, it can never happen.
4271 Use reg_or_zero_operand instead of const0_rtx explicit test,
4272 use input_operand instead of move_operand for source, and use
4273 general_operand now for dest.
4274 (define_insn movhi_insn): Similar but leave sethi case.
4275 (define_insn lo_sum_qi, store_qi, store_hi): Remove.
4276 (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
4277 movhi_lo_sum respectively, prettify output string.
4278 (define_insn movsi_zero_liveg0): New pattern to put zero into a
4279 register when needed on TARGET_LIVE_G0.
4280 (define_insn movsi_insn): Use general_operand and input_operand
4281 for dest and src respectively. Simplify applicability test.
4282 Prettify output strings, and add clr alternative for J
4283 constraint.
4284 (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
4285 deprecated std and reg-reg DI moves): Remove and...
4286 (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
4287 implementation which uses forced splits for all non-single insn
4288 cases.
4289 (define_split DI move cases on !arch64): New splits to handle all
4290 situations of 64-bit double register DImode on 32bit, and
4291 unaligned registers and memory addresses for all subtargets.
4292 (define_insn movsf_const_insn, movdf_const_insn, store_sf):
4293 Remove.
4294 (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
4295 input_operand for dest and src respectively, prettify output
4296 strings.
4297 (define_insn movdf_insn, movdf_no_e_insn, store_df,
4298 movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
4299 and...
4300 (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
4301 movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
4302 movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
4303 movtf_no_e_insn_sp64) Replace with new
4304 implementation which uses forced splits for all non-single insn
4305 cases.
4306 (define_split DF move cases): New splits in similar vein to DI
4307 move counterparts.
4308 (define_insn sethi_di_medlow, sethi_di_medium_pic,
4309 sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
4310 movdi_sp64_insn): Remove old v9 code model and constant loading
4311 support insns and..
4312 (define_insn pic_lo_sum_di, pic_sethi_di,
4313 sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
4314 seth44, setm44, setl44, sethh, setlm, sethm, setlo,
4315 embmedany_sethi, embmedany_losum, embmedany_brsum,
4316 embmedany_textuhi, embmedany_texthi, embmedany_textulo,
4317 embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
4318 movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
4319 scheme, using unspecs, secondary reloads, and one to one sparc
4320 insn to rtl insn mapping for better scheduling and code gen.
4321 (define_expand reload_indi, reload_outdi): Reload helpers for
4322 MEDANY and EMBMEDANY symbol address loading cases which require a
4323 temporary register.
4324 (define_expand movsicc): Remove v8plus_regcmp cases.
4325 (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
4326 cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
4327 cmp_diqi_trunc_set): New patterns used by some of the new scc
4328 splits on arch64.
4329 (define_insn xordi3_sp64_dbl): New pattern used for constant
4330 formation when crossing from 32-bit targets.
4331 (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
4332 split): Remove.
4333 (define_insn addx, subx): Make visible and prettify.
4334 (define_insn adddi3_insn_sp32): Likewise and force split.
4335 (define_insn addx_extend, subx_extend, unnamed): New patterns for
4336 64bit scc split usage.
4337 (define_insn unnamed plusDI zero_extend, unnamed minusDI
4338 zero_extend, subdi3): Force and implement splits.
4340 * final.c (final_scan_insn): Don't output labels if target
4341 specifies ASM_OUTPUT_ADDR_{DIFF}_VEC. Do these macro operations
4342 instead.
4344 * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
4345 don't forget to walk inside SEQUENCESs too as these are what the
4346 delay slot scheduler will create.
4348 Mon Aug 10 01:21:01 1998 Richard Henderson <rth@cygnus.com>
4350 * alpha.md (extxl+1,+2): New patterns to work around
4351 combine lossage.
4353 Sat Aug 8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)
4355 * rs6000.c (rs6000_allocate_stack_space) Fix typo which
4356 caused bad assembly code to be generated.
4358 Sat Aug 8 18:53:28 1998 Jeffrey A Law (law@cygnus.com)
4360 * netbsd.h: Fix typo.
4362 Mon Aug 3 00:06:42 1998 Robert Lipe <robertl@dgii.com>
4364 * config.sub: Fix typo.
4366 Sun Aug 2 22:39:08 1998 Hans-Peter Nilsson <hp@axis.se>
4368 * invoke.texi (Environment Variables): Typo: Change "ascpects"
4369 into "aspects".
4370 (Running Protoize): Typo: Change "ther" into "other".
4372 Sun Aug 2 00:42:50 1998 Jeffrey A Law (law@cygnus.com)
4374 * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
4375 * m68k/netbsd.h: Likewise.
4376 * ns32k/netbsd.h: Likewise.
4377 * sparc/netbsd.h: Likewise.
4379 Sat Aug 1 17:59:30 1998 Richard Henderson <rth@cygnus.com>
4381 * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
4382 * ginclude/va-clipper.h (va_list): Likewise.
4384 Fri Jul 31 20:22:02 1998 Michael Meissner <meissner@cygnus.com>
4386 * rs6000.c (rs6000_override_options): If big endian and -Os, use
4387 load/store multiple instructions unless user overrides.
4389 Fri Jul 31 17:08:59 1998 Jeffrey A Law (law@cygnus.com)
4391 * ns32k/netbsd.h: Fix typo.
4393 Fri Jul 31 10:23:55 1998 Doug Evans <devans@canuck.cygnus.com>
4395 * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
4396 labels with .debugsym if no parallel insns.
4398 Thu Jul 30 19:15:53 1998 Richard Henderson <rth@cygnus.com>
4400 * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
4401 (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.
4403 Thu Jul 30 19:50:15 1998 David Edelsohn <edelsohn@mhpcc.edu>
4405 * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
4406 (AR_FOR_TARGET): Define.
4408 Thu Jul 30 12:29:12 1998 Mark Mitchell <mark@markmitchell.com>
4410 * dyn-string.h: New file.
4411 * dyn-string.c: Likewise.
4412 * Makefile.in (OBJS): Add dyn-string.o.
4413 (dwarf2out.o): Add dyn-string.h dependency.
4414 (dyn-string.o): List dependencies.
4415 * dwarf2out.c: Include dyn-string.h.
4416 (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
4417 (addr_const_to_string): Take a dyn_string_t, not a char* as a
4418 prototype. Use dyn_string_append rather than strcat, throughout.
4419 (addr_to_string): Use dyn_string_t.
4421 Thu Jul 30 13:08:07 1998 Ken Raeburn <raeburn@cygnus.com>
4423 Function entry/exit profiling instrumentation:
4424 * expr.h (profile_function_entry_libfunc,
4425 profile_function_exit_libfunc): Declare new variables.
4426 * optabs.c: Define them here.
4427 (init_optabs): Initialize them.
4428 * tree.h (struct tree_decl): New flag
4429 no_instrument_function_entry_exit.
4430 (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
4431 * c-decl.c (duplicate_decls): Merge it.
4432 * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
4433 (init_attributes): Use it for "no_instrument_function".
4434 (decl_attributes): Handle it, for functions that have not yet been
4435 compiled. Set decl flag.
4436 * flags.h (flag_instrument_function_entry_exit): Declare new
4437 variable.
4438 * toplev.c (flag_instrument_function_entry_exit): Define it here.
4439 (f_options): New option "instrument-functions".
4440 * function.h (struct function): New field instrument_entry_exit.
4441 * function.c (current_function_instrument_entry_exit): New
4442 variable.
4443 (push_function_context_to, pop_function_context_from): Save and
4444 restore.
4445 (expand_function_start): Set current_ variable, maybe emit return
4446 label and entry profile call.
4447 (expand_function_end): Maybe emit exit profile call.
4449 Thu Jul 30 00:58:34 1998 Jeffrey A Law (law@cygnus.com)
4451 * i386.md (movqi): When optimizing a load of (const_int 1) into a
4452 NON_QI_REG_P, pretend the register is SImode.
4454 Wed Jul 29 23:49:23 1998 Todd Vierling <tv@netbsd.org>
4456 * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
4457 Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
4458 manufacturer id for ns32k.
4459 * configure: Regenerated.
4460 * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
4461 * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
4462 * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
4463 * config/m68k/netbsd.h: Same.
4464 * config/ns32k/netbsd.h: Same.
4465 * config/sparc/netbsd.h: Same.
4467 Wed Jul 29 22:39:21 1998 Jeffrey A Law (law@cygnus.com)
4469 * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
4470 or UNROLL_COMPLETELY loop that starts with a jump to its
4471 exit code.
4473 Wed Jul 29 22:18:14 1998 David Edelsohn <edelsohn@mhpcc.edu>
4475 * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
4476 * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
4477 (print_operand, case 'B'): Don't fall through.
4478 (print_operand, case 'S'): Correct mask begin/end computation.
4479 Use HOST_BITS_PER_WIDE_INT.
4480 * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
4481 (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
4482 * rs6000/aix41.h (CPP_PREDEFINES): Same.
4483 * rs6000/aix43.h (CPP_PREDEFINES): Same.
4485 Wed Jul 29 11:47:10 1998 Nick Clifton <nickc@cygnus.com>
4487 * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
4488 constraint from second alternative.
4490 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
4492 * configure.in: Fix --without/--disable cases for local-prefix,
4493 gxx-include-dir and checking.
4495 Tue Jul 28 22:01:23 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4497 * configure.in (enable_haifa): Set by default for sparc64 too.
4498 configure: Rebuilt.
4500 Tue Jul 28 23:29:04 1998 Jason Merrill <jason@yorick.cygnus.com>
4502 * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
4503 * i386/winnt.c (associated_type): New fn.
4504 (i386_pe_valid_type_attribute_p): New fn.
4505 (i386_pe_check_vtable_importexport): Remove.
4506 (i386_pe_dllexport_p): Use associated_type.
4507 (i386_pe_dllimport_p): Likewise.
4509 From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
4510 * i386.c (i386_valid_type_attribute_p): Also accept
4511 attributes for METHOD_TYPEs.
4513 Tue Jul 28 23:17:39 1998 Peter Gerwinski <peter@gerwinski.de>
4515 * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.
4517 Tue Jul 28 22:31:12 1998 Craig Burley <burley@gnu.org>
4519 * gcc.c: Fix commentary describing %g, %u, %U, and %O.
4521 * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
4522 them from generating a new base name for each occurence of
4523 a specific suffix.
4525 1998-07-28 Vladimir N. Makarov <vmakarov@cygnus.com>
4527 * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
4528 SUBREG, MEM.
4529 * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE.
4533 * cplus-dem.c (type_kind_t): New type.
4534 (demangle_template_value_parm): Add type_kind_t parameter. Rely
4535 on this paramter, rather than demangling the type again.
4536 (demangle_integral_value): Pass tk_integral.
4537 (demangle_template_: Pass the value returned from do_type.
4538 (do_type): Return a type_kind_t. Pass tk_integral to
4539 demangle_template_value_parm for array bounds.
4540 (demangle_fund_type): Likewise.
4542 Mon Jul 27 00:54:41 1998 Jason Merrill <jason@yorick.cygnus.com>
4544 * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
4545 identical.
4547 Mon Jul 27 22:18:36 1998 Jeffrey A Law (law@cygnus.com)
4549 * pa.c (move_operand): Accept CONSTANT_P_RTX.
4551 Mon Jul 27 17:18:52 1998 Dave Brolley <brolley@cygnus.com>
4553 * stor-layout.c (layout_type): Handle arrays of bits, for Chill.
4555 * expr.c (get_inner_reference): Handle zero-based, unsigned, array
4556 index conversion.
4558 Mon Jul 27 14:51:33 1998 Jeffrey A Law (law@cygnus.com)
4560 * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
4561 (DEBUGGER_ARG_OFFSET): Likewise.
4563 * mn10300.md (movsf): Remove last change. Not needed.
4565 Mon Jul 27 14:22:36 1998 Dave Brolley <brolley@cygnus.com>
4567 * c-lex.c (yylex): Fix boundary conditions in character literal and
4568 string literal loops.
4570 Mon Jul 27 11:43:54 1998 Stan Cox <scox@cygnus.com>
4572 * longlong.h (count_leading_zeros): Sparclite scan instruction was
4573 being invoked incorrectly.
4575 * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
4576 * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE):
4577 Add -pg support.
4578 * i386/win32.h: New file. Hybrid mingw32.h/cygwin32.h configuration.
4579 * configure.in: Added i[34567]86-*-win32
4580 * config.sub: Ditto.
4581 * configure: Rebuilt.
4583 Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org)
4585 * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
4586 the frame pointer and compiling PIC code and reload has not completed.
4588 * i386.c (output_to_reg): Add code to emulate non-popping DImode
4589 case.
4591 Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com)
4593 * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.
4595 Sat Jul 25 23:29:23 1998 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
4597 * Makefile.in (install-info): Only try to update the info
4598 directory file if it exists in the first place.
4600 Fri Jul 24 18:58:37 1998 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
4602 * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.
4604 Fri Jul 24 14:20:26 1998 Jeffrey A Law (law@cygnus.com)
4606 * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
4607 CONST_DOUBLE source.
4609 Fri Jul 24 11:17:04 1998 Nick Clifton <nickc@cygnus.com>
4611 * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
4612 strings as the insertion of USER_LABEL_PREFIX.
4613 * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
4614 valid code.
4615 * config/arm/thumb.md: Use %_ as a prefix to gcc library function
4616 calls.
4618 Thu Jul 23 18:53:20 1998 Jim Wilson <wilson@cygnus.com>
4620 * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
4621 already defined type.
4623 Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
4625 * expr.c (check_max_integer_computation_mode): Allow conversions
4626 of constant integers to MAX_INTEGER_COMPUTATION_MODE.
4627 (expand_expr): Likewise.
4629 Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4631 * expr.c (expand_expr): Expand RETURN_EXPR.
4633 Thu Jul 23 11:00:29 1998 Jim Wilson <wilson@cygnus.com>
4635 * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.
4637 Wed Jul 22 19:10:00 1998 Catherine Moore <clm@cygnus.com>
4639 * dwarf2out.c (output_aranges): Call stripattributes
4640 for TEXT_SECTION references.
4641 (output_line_info): Likewise.
4643 Wed Jul 22 14:08:54 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4645 * profile.c (branch_prob): Call allocate_reg_info after outputting
4646 profile rtl in instrument_arcs.
4648 Wed Jul 22 12:47:49 1998 Jim Wilson <wilson@cygnus.com>
4650 * fixinc.irix (math.h): Install wrapper instead of copying.
4652 Wed Jul 22 12:37:14 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
4654 * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
4655 so WFL are expanded correctly when contained in a COMPOUND_EXPR.
4656 * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
4657 lang_flag_0. Added documentation in the flag table.
4659 Tue Jul 21 23:28:35 1998 Klaus Kaempf <kkaempf@rmi.de>
4661 * cccp.c (do_include): Fix vax c style include handling.
4663 Tue Jul 21 13:28:19 1998 Jason Merrill <jason@yorick.cygnus.com>
4665 * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.
4667 Sun Jul 12 01:27:05 1998 Jason Merrill <jason@yorick.cygnus.com>
4669 * fold-const.c (non_lvalue): Don't deal with null pointer
4670 constants here.
4671 (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
4673 Tue Jul 21 15:49:31 1998 David Edelsohn <edelsohn@mhpcc.edu>
4675 * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
4676 * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
4677 * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
4678 (u_short_cint_operand): Same.
4679 (reg_or_cint_operand): Same.
4680 (logical_operand): Same.
4681 (input_operand): Same.
4682 (reg_or_short_operand): Use u_short_cint_operand.
4684 Tue Jul 21 08:56:42 1998 Richard Henderson <rth@cygnus.com>
4686 * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
4687 but keep the insns and splits. Adjust so when the ultimate destination
4688 is memory, use cvtql.
4690 Tue Jul 21 08:55:09 1998 Richard Henderson <rth@cygnus.com>
4692 * flow.c (regno_uninitialized): Fixed regs are never uninitialized.
4694 Tue Jul 21 00:31:01 1998 Jeffrey A Law (law@cygnus.com)
4696 * gcc.c (do_spec): Call "error" not "warning".
4698 * configure.in: Fix minor problems with gas feature detection code.
4699 * configure: Rebuilt.
4701 * gcc.c (do_spec): Issue a warning for '%[]' usage.
4703 * Undo this change.
4704 * gcc.c: Delete %[spec] support.
4705 (do_spec_1, case '('): Likewise.
4706 (do_spec_1, case '['): Call error.
4708 Mon Jul 20 22:34:17 1998 Richard Henderson <rth@cygnus.com>
4710 * alpha.h (CPP_SPEC): Tidy. Hook to cpp_cpu and cpp_subtarget.
4711 (CPP_SUBTARGET_SPEC): Default to empty string.
4712 (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
4713 (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
4714 * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
4715 * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
4716 (LIB_SPEC): Tidy.
4717 * alpha/linux.h (CPP_PREDEFINES): Tidy.
4718 * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
4719 * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
4720 * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
4721 * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
4722 * alpha/vsf.h (CPP_PREDEFINES): Likewise.
4723 (CPP_SUBTARGET_SPEC): New. Do this instead of overriding CPP_SPEC.
4724 * alpha/vxworks.h: Likewise.
4726 Mon Jul 20 22:51:57 1998 Ken Raeburn <raeburn@cygnus.com>
4728 * mips.md (reload_outsi): Added missing REGNO call.
4729 (smulsi3_highpart, umulsi3_highpart): Provide prototype for
4730 function pointer.
4731 (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
4732 another match_operator and compare the codes.
4734 * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.
4736 * MIPS multiply pattern fixes:
4737 * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
4738 Add union classes for HI, LO, or HILO plus general registers.
4739 (GENERATE_MADD): Deleted.
4740 * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
4741 Add TARGET_MAD to condition.
4742 (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
4743 (mul_acc_si): Expand GENERATE_MADD here; it's the only use. Use
4744 "*d" for accumulator, to give preference to LO initially but not
4745 during reload.
4747 Mon Jul 20 16:16:38 1998 Dave Brolley <brolley@cygnus.com>
4749 * configure.in (enable_c_mbchar): New configure option.
4750 (extra_cpp_objs): Always available now.
4752 * cexp.y (mbchar.h): #include it.
4753 (yylex): Handle Multibyte characters in character literals.
4755 * cccp.c (mbchar.h): #include it.
4756 (main): Set character set based on LANG environment variable.
4757 (rescan): Handle multibyte characters in comments.
4758 (skip_if_group): See above.
4759 (validate_else): See above.
4760 (skip_to_end_of_comment): See above.
4761 (macarg1): See above.
4762 (discard_comments): See above.
4763 (rescan): Handle multibyte characters in string and character literals.
4764 (collect_expansion): See above.
4765 (skip_quoted_string): See above.
4766 (macroexpand): See above.
4767 (macarg1): See above.
4768 (discard_comments): See above.
4769 (change_newlines): See above.
4771 * c-lex.c (mbchar.h): #include it.
4772 (GET_ENVIRONMENT): New macro.
4773 (init_lex): Set character set based on LANG environment variable.
4774 (yylex): Handle multibyte characters in character literals.
4775 (yylex): Handle multibyte characters in string literals.
4777 * Makefile.in (mbchar.o): New target.
4778 (cccp$(exeext)): @extra_cpp_objs@ is always available.
4779 (cppmain$(exeext)): @extra_cpp_objs@ is always available.
4781 * mbchar.[ch]: New files for multibyte character handling.
4783 Mon Jul 20 01:11:11 1998 David S. Miller <davem@pierdol.cobaltmicro.com>
4785 * jump.c (jump_optimize): When simplifying noop moves and
4786 PUSH_ROUNDING, fix thinko so we use same criterion for identifying
4787 the PUSHes to rewrite in second loop as we did in the first.
4789 Sun Jul 19 08:23:53 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
4791 * cplus-dem.c (demangle_nested_args): Make function definition
4792 static to match the prototype.
4794 Fri Jul 17 14:58:44 1998 Richard Henderson <rth@cygnus.com>
4796 * alloca.c: Respect USE_C_ALLOCA.
4797 * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
4798 * gengenrtl.c (xmalloc): Likewise.
4800 Fri Jul 17 14:18:14 1998 Richard Henderson <rth@cygnus.com>
4802 * loop.h (struct induction): Add no_const_addval.
4803 * loop.c (the_movables, reg_address_cost): New variables.
4804 (init_loop): Init reg_address_cost.
4805 (loop_optimize): Call end_alias_analysis.
4806 (scan_loop): Init the_movables.
4807 (record_giv): Init induction->no_const_addval.
4808 (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
4809 [REG]: Rearrange loop search test to catch more cases.
4810 (general_induction_var): Return success not benefit; take an extra
4811 argument for that. Change all callers.
4812 (simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
4813 [MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
4814 [default]: Search the_movables for additional combinations.
4815 (sge_plus_constant, sge_plus): New functions.
4816 (express_from_1): New function.
4817 (express_from): Always define. Rewrite using express_from_1.
4818 (combine_givs_p): Handle more cases. Ignore address cost.
4819 (cmp_combine_givs_stats): New function.
4820 (combine_givs_used_once, combine_givs_benefit_from): New functions.
4821 (combine_givs): Rewrite to do best-fit combination.
4823 * fold-const.c (operand_equal_p): Handle RTL_EXPR.
4824 (fold): Do a complete (A*C)+(B*C) association check.
4826 Fri Jul 17 11:21:55 1998 Jim Wilson <wilson@cygnus.com>
4828 * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.
4830 Fri Jul 17 11:48:55 1998 Jeffrey A Law (law@cygnus.com)
4832 * mn10300.c (MODES_TIEABLE_P): Fix typo.
4834 Fri Jul 17 03:26:12 1998 Rihcard Earnshaw (rearnsha@arm.com)
4836 * tree.c (valid_machine_attribute): Only create a new type variant if
4837 there is a decl to use it.
4839 Thu Jul 16 14:48:04 1998 Nick Clifton <nickc@cygnus.com>
4841 * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
4842 a suffix.
4844 Fri Jul 17 03:24:40 1998 Hans-Peter Nilsson <hp@axis.se>
4846 * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
4847 be deleted"
4849 Thu Jul 16 14:48:47 1998 Jeffrey A Law (law@cygnus.com)
4851 * mn10300.c (count_tst_insns): New arg oreg_countp. Callers changed.
4852 Simplify tests for clearing an address register.
4853 (expand_prologue): Corresponding changes.
4855 * mn10300.md (movXX patterns): Make sure the destination is an
4856 ADDRESS_REG when substituting "zero_areg" for (const_int 0).
4857 (logical patterns): Split into expanders + patterns
4858 (zero and sign extension patterns): Similarly.
4859 (shift patterns): Similarly.
4861 Thu Jul 16 01:17:44 1998 Richard Henderson <rth@cygnus.com>
4863 * loop.c (emit_iv_add_mult): Scan the entire insn list generated
4864 for the sequence, recording base values.
4866 Wed Jul 15 10:49:55 1998 Richard Henderson <rth@cygnus.com>
4868 * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).
4870 Tue Jul 14 14:15:30 1998 Nick Clifton <nickc@cygnus.com>
4872 * gcc.c: Remove ANSI-C ism from --help code.
4874 * toplev.c: Support --help with USE_CPPLIB.
4876 Tue Jul 14 14:46:08 1998 Jeffrey A Law (law@cygnus.com)
4878 * configure.in: Rework gas feature code to work with symlink based
4879 source trees.
4881 * extend.texi: Clarify some issues related to local variables
4882 assigned to explicit registers.
4884 * mn10300.md (mulsi): Turn into expander + pattern.
4886 * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
4887 alternative.
4889 Tue Jul 14 07:41:59 1998 Richard Earnshaw (rearnsha@arm.com)
4891 * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.
4893 Tue Jul 14 03:02:44 1998 Jeffrey A Law (law@cygnus.com)
4895 * version.c: Bump again to distinguish mainline tree from the
4896 egcs-1.1 branch.
4898 See ChangeLog.0 for earlier changes.
4900 Local Variables:
4901 add-log-time-format: current-time-string
4902 End: