1 Mon Oct 6 12:47:32 1997 Manfred Hollstein (manfred@lts.sel.alcatel.de)
3 * m88k.c (m88k_begin_prologue): Remove superfluous backslash.
5 Mon Oct 6 12:04:24 1997 Jeffrey A Law (law@cygnus.com)
7 * Makefile.in (check-g77): New test target.
8 (CHECK-TARGETS): Add check-g77.
10 Fri Oct 3 15:49:27 1997 Michael Meissner <meissner@cygnus.com>
12 * flow.c (print_rtl_with_bb): Cast alloca return value for
15 Thu Oct 2 21:15:03 1997 Richard Henderson <rth@cygnus.com>
17 * i386.h (RETURN_ADDR_RTX): New definition that works for
18 __builtin_return_address(0) and -fomit-frame-pointer.
20 Wed Oct 1 13:43:53 1997 Jim Wilson <wilson@cygnus.com>
23 Tue Aug 5 16:10:45 1997 Jason Merrill <jason@yorick.cygnus.com>
25 * mips.c (function_arg): Handle passing a struct
26 containing a double in a DFmode register without the PARALLEL.
28 Wed Oct 1 11:13:25 1997 Ian Lance Taylor <ian@cygnus.com>
30 * pexecute.c: Use spawn if __CYGWIN32__.
32 * pexecute.c: Include "config.h" first, as per autoconf manual
33 (from Paul Eggert <eggert@twinsun.com>).
35 Wed Oct 1 01:44:36 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
37 * m68k/x-mot3300 (XCFLAGS): Disable as's long/short jump
38 optimisation for f/expr.o and f/stb.o.
40 Tue Sep 30 23:48:57 1997 Jeffrey A Law (law@cygnus.com)
42 * cse.c (this_insn_cc0_mode): Initialize.
44 Tue Sep 30 23:09:40 1997 Thomas Koenig <ig25@mvmap66.ciw.uni-karlsruhe.de>
46 * cccp.c (expand_to_temp_buffer): Initialize all members of obuf.
48 * haifa-sched.c (get_block_head_tail): Remove unneeded initialization.
50 Tue Sep 30 23:06:43 1997 Richard Henderson <rth@cygnus.com>
52 * alpha.md (beq): For registers and ints 0-255, use cmpeq+bne, since
53 that pair will dual-issue on the 21164 and plus+beq won't.
54 (bne): Likewise for cmpeq+beq.
56 Tue Sep 30 16:07:58 1997 Jim Wilson <wilson@cygnus.com>
58 * except.c (find_exception_handler_labels): Correct argument to free.
60 Tue Sep 30 11:00:00 1997 Brendan Kehoe <brendan@lisa.cygnus.com>
62 * except.c (find_exception_handler_labels): Free LABELS when we're
65 Mon Sep 29 14:04:35 1997 Jeffrey A Law (law@cygnus.com)
67 * version.c: Bump for snapshot.
69 Mon Sep 29 10:51:53 1997 Jason Merrill <jason@yorick.cygnus.com>
71 * flow.c (find_basic_blocks): Mark calls as potentially jumping
74 Mon Sep 29 09:58:06 1997 Jeffrey A Law (law@cygnus.com)
76 * configure.in: Substitute for "install" too.
79 Mon Sep 29 00:38:42 1997 Aaron Jackson <jackson@negril.msrce.howard.edu>
81 * Makefile.in (bootstrap-lean, compare-lean): New targets.
83 Mon Sep 29 00:18:16 1997 Richard Henderson (rth@cygnus.com)
85 * alias.c (base_alias_check): Two symbols can conflict if they
87 (memrefs_conflict_p): Likewise.
89 * alpha.h (SETUP_INCOMING_VARARGS): Emit a blockage insn
90 after flushing argument registers to the stack.
92 * Makefile.in (mostlyclean): Remove .regmove files.
94 Sun Sep 28 18:59:58 1997 Jason Merrill <jason@yorick.cygnus.com>
96 * libgcc2.c (__throw): Fix thinko.
98 Sun Sep 28 12:00:52 1997 Mark Mitchell <mmitchell@usa.net>
100 * cplus-dem.c (demangle_template): Add new parameter. Handle new
101 template-function mangling.
102 (consume_count_with_underscores): New function.
103 (demangle_signature): Handle new name-mangling scheme.
105 Sun Sep 28 01:55:04 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
107 * flow.c (print_rtl_with_bb): Cast alloca return values for variables
110 Sun Sep 28 01:05:16 1997 Jeffrey A Law (law@cygnus.com)
112 * frame.c: Remove last change.
113 * dwarf2.h: Remove last change.
114 * tree.h: Add declarations of DWARF2 unwind info support
117 Sat Sep 27 11:02:38 1997 Jason Merrill <jason@yorick.cygnus.com>
119 * c-decl.c (init_decl_processing): Add __builtin_dwarf_reg_size.
120 * tree.h (built_in_function): Likewise.
121 * expr.c (expand_builtin): Likewise.
122 * except.h: Likewise.
123 * dwarf2out.c (expand_builtin_dwarf_reg_size): New fn.
124 * libgcc2.c (copy_reg): New fn.
127 Fri Sep 26 08:54:59 1997 Paul Eggert <eggert@twinsun.com>
129 * c-typeck.c (build_binary_op): Warn about comparing signed vs
130 unsigned if -W is specified and -Wno-sign-compare is not.
131 * c-decl.c (warn_sign_compare): Initialize to -1.
132 (c_decode_option): -Wall no longer implies -Wsign-compare.
134 Fri Sep 26 09:00:13 1997 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
136 * frame.c: Include gansidecl.h for PROTO.
137 * dwarf2out.c: Move inclusion of dwarf2.h down so that PROTO is
138 defined. Don't declare dwarf2out_cfi_label here.
139 * dwarf2.h: Add declarations of DWARF2 unwind info support
141 * m68k.c: Include dwarf2.h.
142 (output_function_prologue): Add dwarf2 support.
143 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM): New macros.
144 (INCOMING_FRAME_SP_OFFSET): Likewise.
146 * integrate.c (expand_inline_function): Make sure there is at
147 least one insn that can be used as an insertion point.
149 Wed Sep 24 21:34:06 1997 Jason Merrill <jason@yorick.cygnus.com>
151 * dwarf2out.c: s/flag_verbose_asm/flag_debug_asm/
153 Wed Sep 24 22:05:30 1997 Jeffrey A Law (law@cygnus.com)
155 * version.c: Bump for snapshot.
157 Wed Sep 24 17:36:23 1997 Doug Evans <dje@canuck.cygnus.com>
161 Wed Sep 24 19:17:08 1997 Doug Evans <dje@cygnus.com>
163 * sparc/sparc.md (get_pc_via_call): Renamed from get_pc_sp32.
164 (get_pc_via_rdpc): Renamed from get_pc_sp64.
165 * sparc/sparc.c (finalize_pic): Update call to gen_get_pc_via_call.
167 Wed Sep 24 18:38:22 1997 David S. Miller <davem@tanya.rutgers.edu>
169 * sparc/sparc.h (ASM_CPU_SPEC): Pass -Av9a for v8plus, ultrasparc.
170 (TARGET_OPTIONS): Add -malign-loops=, -malign-jumps=,
172 (sparc_align_{loops,jumps,funcs}_string): Declare.
173 (sparc_align_{loops,jumps,funcs}): Declare.
174 (DEFAULT_SPARC_ALIGN_FUNCS): New macro.
175 (FUNCTION_BOUNDARY): Use sparc_align_funcs.
176 (STACK_BIAS): Define.
177 (SPARC_SIMM*_P): Cast to unsigned HOST_WIDE_INT first, then perform
179 (SPARC_SETHI_P): New macro.
180 (CONST_OK_FOR_LETTER_P): Use it.
181 (ASM_OUTPUT_ALIGN_CODE): Define.
182 (ASM_OUTPUT_LOOP_ALIGN): Define.
183 * sparc/sparc.c (sparc_align_{loops,jumps,funcs}_string): New globals.
184 (sparc_align_{loops,jumps,funcs}): New globals.
185 (sparc_override_options): Handle -malign-loops=, -malign-jumps=,
187 (move_operand): Use SPARC_SETHI_P.
188 (arith_double_operand): Cast to unsigned HOST_WIDE_INT first, then
190 (arith11_double_operand): Likewise.
191 (arith10_double_operand): Likewise.
192 (finalize_pic): Finish sparc64 support.
193 (emit_move_sequence): Use SPARC_SETHI_P. Simplify low part of
194 64 bit constants if able.
195 (output_fp_move_quad): Don't use fmovq unless TARGET_HARD_QUAD.
196 (sparc_builtin_saveregs, sparc64 case): Don't save fp regs if
198 * sparc/sparc.md (*): Use GEN_INT instead of gen_rtx.
199 (get_pc_sp32): Use for sparc64 as well.
200 (lo_sum_di_sp{32,64}): Fix handling on 64 bit hosts.
201 (sethi_di_sp64_const): Likewise.
202 (movtf_cc_sp64): Check TARGET_HARD_QUAD.
203 (cmp_zero_extract_sp64): Use unsigned HOST_WIDE_INT in cast.
204 (ashlsi3, ashldi3, ashrsi3, ashrdi3, lshrsi3, lshrdi3): Likewise.
206 Tue Sep 23 19:02:46 1997 Doug Evans <dje@cygnus.com>
208 * sparc/linux-aout.h (COMMENT_BEGIN): Delete.
209 * sparc/linux.h (COMMENT_BEGIN): Likewise.
210 * sparc/linux64.h (COMMENT_BEGIN): Likewise.
212 Tue Sep 23 14:48:18 1997 David S. Miller <davem@tanya.rutgers.edu>
214 Add sparc64 linux support.
215 * configure.in (sparc64-*-linux*): Recognize. Add sparc/xm-sparc.h
216 to xm_file list on 32-bit sparc-linux.
217 * sparc/xm-sp64.h: New file.
218 * sparc/linux64.h: New file.
219 * sparc/xm-linux.h: Include some standard headers if not inhibit_libc.
220 Don't include xm-sparc.h.
221 * config/xm-linux.h (HAVE_PUTENV, HAVE_ATEXIT): Define.
222 * glimits.h (LONG_MAX): Handle sparc64.
224 Sat Sep 20 03:07:54 1997 Doug Evans <dje@cygnus.com>
226 * sparc/sysv4.h (ASM_COMMENT_START): Delete.
227 * sparc.h (ASM_COMMENT_START): Define.
228 * sparc.c (output_function_prologue): Use it.
229 (sparc_flat_output_function_{epi,pro}logue): Likewise.
231 Wed Sep 17 15:04:19 1997 Doug Evans <dje@cygnus.com>
233 * sparc/sysv4.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Delete,
234 use sparc.h's copies.
235 * sparc/sparc.h (ASM_OUTPUT_{FLOAT,DOUBLE,LONG_DOUBLE}): Print
238 Mon Sep 8 08:45:19 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
240 * sparc.c (dwarf2out_cfi_label): Add declaration.
241 (save_regs, output_function_prologue): Remove cast for it.
242 (sparc_flat_{save_restore,output_function_prologue): Likewise.
243 ({save,restore}_regs): No longer inline.
245 Tue Sep 23 12:34:51 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
247 * fold-const.c (make_range): Correctly handle cases of converting
248 from unsigned to signed type.
250 Tue Sep 23 12:34:51 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
252 * fold-const.c (merge_ranges): Make sure that if one range is subset
253 of another, it will always be the second range. Correct (+,-) case to
256 Tue Sep 23 08:32:51 1997 Jason Merrill <jason@yorick.cygnus.com>
258 * final.c (final_end_function): Also do dwarf2 thing if
259 DWARF2_DEBUGGING_INFO.
260 (final_start_function): Likewise.
262 Tue Sep 23 01:15:50 1997 David S. Miller <davem@tanya.rutgers.edu>
264 * expmed.c (expand_divmod): If compute_mode is not the same as
265 mode, handle the case where convert_modes() causes op1 to no
266 longer be a CONST_INT.
268 * reorg.c (dbr_schedule): At end of this pass, add REG_BR_PRED
269 note holding get_jump_flags() calculation to all JUMP_INSNs.
270 * rtl.h (enum reg_note): New note types REG_BR_PRED and REG_SAVE_AREA.
271 * rtl.c (reg_note_name): Add new note types.
273 Tue Sep 23 00:59:54 1997 Jeffrey A Law (law@cygnus.com)
275 * rtlanal.c (computed_jump_p): Fix typo in last change.
277 Tue Sep 23 00:42:44 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
279 * loop.c (indirect_jump_in_function_p): Return 0
282 Tue Sep 23 00:33:55 1997 Jeffrey A Law (law@cygnus.com)
284 * rs6000/xm-rs6000.h: Fix thinko in last change.
285 * rs6000/xm-sysv4.h: Likewise.
287 Mon Sep 22 19:33:53 1997 Jim Wilson <wilson@cygnus.com>
289 * mips.c (save_restore_insns): Only set RTX_FRAME_RELATED_P if store_p.
291 Mon Sep 22 14:41:00 1997 Jeffrey A Law (law@cygnus.com)
293 * reg-stack.c (find_blocks): Fix thinko in last change.
295 1997-09-21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
297 * m68k.c (output_function_prologue): Add dwarf2 support.
299 * m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM,
300 INCOMING_FRAME_SP_OFFSET): New definitions.
302 Mon Sep 22 11:36:42 1997 David S. Miller <davem@tanya.rutgers.edu>
304 * combine.c (try_combine): Use NULL_RTX instead of '0' where
305 appropriate in calls to gen_rtx().
306 * cse.c (cse_main): Likewise.
307 * emit-rtl.c (gen_label_rtx): Likewise.
308 * expr.c (init_expr_once): Likewise.
309 * haifa-sched.c (flush_pending_lists, sched_analyze_insn,
310 sched_analyze, init_rgn_data_dependences,
311 compute_block_backward_dependences): Likewise.
312 * sched.c (schedule_insns): Likewise.
313 * varasm.c (immed_double_const): Likewise.
315 * sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
316 SPARC_STACK_BIAS for sake of dwarf2 on sparc64.
318 Mon Sep 22 11:21:33 1997 J. Kean Johnston <jkj@sco.com>
320 * i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
321 (MULTILIB_DEFAULTS): Define.
322 (ASM_SPEC, CPP_SPEC): Handle -mcoff.
323 (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
324 (LIBGCC_SPEC): Likewise.
325 (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
326 (SUBTARGET_SWITCHES): Add -mcoff and -melf.
327 * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
328 (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
329 (EXTRA_PARTS, TAROUTOPTS): Delete.
330 (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
331 (MULTILIB_OPTIONS): Define.
332 (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
333 (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
335 Mon Sep 22 02:10:43 1997 Jeffrey A Law (law@cygnus.com)
337 * version.c: Bump for snapshot.
339 Sun Sep 21 17:45:45 1997 Jeffrey A Law (law@cygnus.com)
341 * loop.c (loop_number): Delete function. Change all references
342 to use uid_loop_num array.
343 * loop.h (loop_number): Delete declaration.
344 * unroll.c (unroll_loop): Change "loop_number" references to
345 use uid_loop_num instead.
347 * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
349 (loop_unroll_iter): Remove unused variable and all references.
350 (loop_optimize): Always allocate and clear space for loop_unroll_factor.
351 (insert_bct): Fix minor formatting problems.
352 * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
353 (loop_unroll_iter): Removed unused decl.
354 * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
355 Always record the unrolling factor.
357 * cse.c (simplify_relational_operation): Set h0u just like h0s.
358 Similarly for h1u and h1s.
360 * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
361 (find_basic_blocks): Use computed_jump_p to determine if a
362 particular JUMP_INSN is a computed jump.
363 * reg-stack.c (find_blocks): Use computed_jump_p to determine
364 if a particular JUMP_INSN is a computed jump.
365 * rtlanal.c (jmp_uses_reg_or_mem): New function.
366 (computed_jump_p): Likewise.
367 * rtl.h (computed_jump_p): Declare.
368 * genattrtab.c (pc_rtx): Define and initialize.
369 * loop.c (loop_optimize): Always determine if the current
370 function has a computed jump.
371 (indirect_jump_in_function_p): Use computed_jump_p to determine
372 if a particular JUMP_INSN is a computed jump.
374 * loop.c (fix_bct_param): Delete unused function.
375 (check_bct_param): Likewise.
377 Sat Sep 20 16:22:06 1997 Jason Merrill <jason@yorick.cygnus.com>
379 * frame.c (__deregister_frame): Check properly for initialized object.
381 Fri Sep 19 20:51:03 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
383 * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
385 Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
387 * jump.c (thread_jumps): check can_reverse_comparison_p before
388 threading a reversed-condition jump.
390 * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
391 * haifa-sched.c (update_flow_info): Likewise.
393 Thu Sep 18 21:13:40 1997 Jeffrey A Law (law@cygnus.com)
395 * Makefile.in (BOOT_CFLAGS): Use -O2.
397 * configure.in (strtoul, bsearch): Have autoconf check for these
399 * configure, config.in: Rebuilt.
401 * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
402 * mips/mips.h (alloca): Likewise.
403 * rs6000/xm-rs6000.h (alloca): Likewise.
404 * rs6000/xm-sysv4.h: Likewise.
406 Thu Sep 18 14:22:22 1997 Jason Merrill <jason@yorick.cygnus.com>
408 * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
409 * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
410 (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
412 * except.c (end_eh_unwinder): Subtract 1 from return address.
413 * libgcc2.c (__throw): Likewise.
414 (find_exception_handler): Don't change PC here. Compare end with >.
416 Thu Sep 18 10:43:07 1997 Nick Clifton <nickc@cygnus.com>
418 * v850.c (compute_register_save_size): Correct register
420 * v850.md (save_interrupt, return_interrupt): Correct
422 * v850/lib1funcs.asm (save_interrupt): Correct register number.
423 (return_interrupt): Use stack pointer, not element pointer.
425 1997-09-18 Brendan Kehoe <brendan@lisa.cygnus.com>
427 * configure.in, configure: Make sure to create the stage* and include
428 symbolic links in each subdirectory.
430 Thu Sep 18 01:47:06 1997 Jeffrey A Law (law@cygnus.com)
432 * pa.md (reload_peepholes): Don't allow addresses with side
433 effects for the memory operand.
435 Wed Sep 17 18:19:53 1997 Jason Merrill <jason@yorick.cygnus.com>
437 * libgcc2.c (find_exception_handler): Subtract one from our PC when
438 looking for a handler, to avoid hitting the beginning of the next
441 * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
443 Wed Sep 17 18:33:59 1997 Jeffrey A Law (law@cygnus.com)
445 * mips/abi64.h (LONG_MAX_SPEC): Define.
446 * mips.h (LONG_MAX_SPEC): Define.
447 (CPP_SPEC): Include long_max_spec.
448 (EXTRA_SPECS): Include long_max_spec.
450 Wed Sep 17 14:11:38 1997 Jeffrey A Law (law@cygnus.com)
452 * v850.c (construct_save_jarl): Fix thinko in last change.
454 Wed Sep 17 09:53:07 1997 Jeffrey A Law (law@cygnus.com)
456 * version.c: Bump for snapshot.
458 Tue Sep 16 14:22:36 1997 Jason Merrill <jason@yorick.cygnus.com>
460 * libgcc2.c (find_exception_handler): Not found is -1.
462 * integrate.c (expand_inline_function): Move expand_start_bindings
463 after expanding the arguments.
465 Tue Sep 16 11:13:46 1997 Jim Wilson <wilson@cygnus.com>
467 * expr.c (expand_expr): Remove previous incorrect change.
468 If target and slot has no DECL_RTL, then call mark_addressable
469 again for the slot after we give it RTL.
471 Tue Sep 16 09:18:52 1997 Jason Merrill (jason@cygnus.com)
473 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
474 again for the slot after we give it RTL.
476 Tue Sep 16 00:13:20 1997 Nick Clifton <nickc@cygnus.com>
478 * v850.c (register_is_ok_for_epilogue,
479 pattern_is_ok_for_epilogue, construct_restore_jr,
480 pattern_is_ok_for_prologue, construct_save_jarl): New functions.
482 * v850.h (pattern_is_ok_for_prologue,
483 pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
486 * v850.md: Replace prologue and epilogue patterns with a
487 match_parallel pattern.
489 Mon Sep 15 22:53:01 1997 Jeffrey A Law (law@cygnus.com)
491 * aclocal.m4: Add replacement for AC_PROG_INSTALL.
492 * configure.in: Use EGCS_PROG_INSTALL.
494 Mon Sep 15 22:40:55 1997 Jim Wilson (wilson@cygnus.com)
496 * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
497 extern inline function.
499 Mon Sep 15 22:40:55 1997 Richard Henderson (rth@cygnus.com)
501 * dwarf2out.c (reg_loc_descriptor): Fix prototype.
502 (concat_loc_descriptor): New function.
503 (loc_descriptor): Call it.
504 (add_AT_location_description): Also elide the descriptor if both
505 halves of a CONCAT are pseudos.
506 (add_location_or_const_value_attribute): Recognize CONCAT too.
508 Mon Sep 15 15:24:00 1997 Richard Henderson <rth@cygnus.com>
510 * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
512 * alpha/alpha.c (output_prolog): New variable sa_reg. Use it for
513 out-or-range reg_offset.
514 (output_epilog): Likewise.
516 Mon Sep 15 15:39:26 1997 Jeffrey A Law (law@cygnus.com)
518 * cse.c (simplify_relational_operation): If MODE specifies a
519 mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
520 is derived from the sign bit of the low word.
522 Mon Sep 15 11:43:38 1997 Jason Merrill <jason@yorick.cygnus.com>
524 Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
526 * dwarf2.h: Add DW_CFA_GNU_args_size.
527 * frame.c (execute_cfa_insn): Likewise.
528 * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
529 (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
530 (dwarf2out_frame_debug): If this isn't a prologue or epilogue
531 insn, hand it off to dwarf2out_stack_adjust.
532 (dwarf2out_begin_prologue): Initialize args_size.
533 * frame.h (struct frame_state): Add args_size.
534 * libgcc2.c (__throw): Use args_size.
535 * final.c (final_scan_insn): If we push args, hand off all insns
536 to dwarf2out_frame_debug.
537 * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
539 * dwarf2out.c dwarf2out_frame_debug): Fix typo.
540 Handle epilogue restore of SP from FP.
541 * emit-rtl.c (gen_sequence): Still generate a sequence if the
542 lone insn has RTX_FRAME_RELATED_P set.
544 * frame.c (extract_cie_info): Handle "e" augmentation.
545 * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
546 absence of UNALIGNED_*_ASM_OP.
547 (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
548 (output_call_frame_info): Use "e" instead of "z" for augmentation.
549 Don't emit augmentation fields length.
550 (dwarf2out_do_frame): Move outside of #ifdefs.
551 * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
554 * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
555 * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
556 * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
557 * sparc/sun4gas.h: New file.
558 * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
560 * collect2.c (write_c_file_stat, write_c_file_glob): Declare
561 __register_frame_table and __deregister_frame.
563 1997-09-15 Brendan Kehoe <brendan@cygnus.com>
565 * except.c (find_exception_handler_labels): Use xmalloc instead of
566 alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
569 Sun Sep 14 21:01:23 1997 Jeffrey A Law (law@cygnus.com)
571 * Makefile.in: Various changes to build info files
572 in the object tree rather than the source tree.
574 Sun Sep 14 12:24:30 1997 Jeffrey A Law (law@cygnus.com)
576 * fixinc.math: New file to fix math.h on some systems.
577 * configure.in (freebsd, netbsd): Use fixinc.math on these
579 * configure: Rebuilt.
581 Sun Sep 14 11:11:05 1997 Jeffrey A Law (law@cygnus.com)
583 * regmove.c (regmove_optimize): If we end up moving the
584 original insn due to lifetime overlaps, make sure to move
587 Sat Sep 13 15:51:11 1997 Manfred Hollstein <manfred@s-direktnet.de>
589 * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
591 Sat Sep 13 12:57:26 1997 Jeffrey A Law (law@cygnus.com)
593 * haifa-sched.c (add_branch_dependences): Make each insn in
594 a SCHED_GROUP_P block explicitly depend on the previous insn.
596 Fri Sep 12 13:49:58 1997 Jason Merrill <jason@yorick.cygnus.com>
598 * except.h: Prototype dwarf2 hooks.
601 Thu Sep 11 17:43:55 1997 Jim Wilson <wilson@cygnus.com>
603 * configure.in (native_prefix): Delete.
604 (mips-dec-netbsd): Don't set prefix.
605 (*linux*): Don't set prefix.
607 Thu Sep 11 15:48:32 1997 Fred Fish <fnf@ninemoons.com>
609 * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
610 defined. If not defined, include <sys/varargs.h> if
611 HAVE_SYS_VARARGS_H is defined.
612 * configure.in: Test for varargs.h and sys/varargs.h.
613 * configure: Regenerate with autoconf.
614 * config.in: Regenerate with autoheader.
616 * cpplib.c (quote_string): Cast first arg of sprintf call
617 from "unsigned char *" to "char *".
618 (output_line_command): Ditto.
619 (macroexpand): Ditto.
620 (do_line): Cast atoi arg from "unsigned char *" to "char *".
622 Wed Sep 10 21:37:30 1997 Jeffrey A Law (law@cygnus.com)
624 * version.c: Bump for snapshot.
626 * Makefile.in (compare): Exit with nonzero status if there
627 are comparison failures. Note which files failed the
628 comparison test in .bad_compare.
630 Wed Sep 10 17:05:46 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
632 * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
634 Wed Sep 10 16:37:28 1997 Fred Fish <fnf@ninemoons.com>
636 * Makefile.in (LN, LN_S): New macros, use where appropriate.
637 * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
638 * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
639 * configure: Regenerated.
641 Thu Sep 11 11:09:43 1997 Jeffrey A Law (law@cygnus.com)
643 * loop.c (strength_reduce): Fix typo.
645 Wed Sep 10 16:01:15 1997 Jim Wilson <wilson@cygnus.com>
647 * m88k/m88k.c (struct option): Rename to struct options.
648 * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
649 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
650 * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
651 __DOLPHIN__ or sysV88.
653 Wed Sep 10 14:58:40 1997 Jim Wilson <wilson@cygnus.com>
655 * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
658 Wed Sep 10 15:19:22 1997 Jeffrey A Law (law@cygnus.com)
660 * config.sub: Accept 'amigados' for backward compatability.
662 Wed Sep 10 14:05:08 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
664 * Makefile.in (testsuite/site.exp): New target.
665 (check-gcc, check-g++): Depend on testsuite/site.exp.
666 Don't stop for failure.
668 Wed Sep 10 12:59:57 1997 Jason Merrill <jason@yorick.cygnus.com>
670 * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
671 if DWARF2_UNWIND_INFO.
673 Wed Sep 10 11:49:20 1997 Jason Merrill <jason@yorick.cygnus.com>
675 Add support for exception handling using DWARF 2 frame unwind info.
676 Currently works on SPARC and MIPS, and almost on x86.
678 * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
679 next_stack_level, in_reg_window): Helper fns.
680 (__throw): Implement for DWARF2_UNWIND_INFO.
682 * expr.c (expand_builtin): Handle builtins used by __throw.
683 * tree.h (enum built_in_function): Add builtins used by __throw.
684 * c-decl.c (init_decl_processing): Declare builtins used by __throw.
685 * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
686 * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
687 (expand_builtin_extract_return_addr): Likewise.
688 (expand_builtin_frob_return_addr): Likewise.
689 (expand_builtin_set_return_addr_reg): Likewise.
690 (expand_builtin_eh_stub): Likewise.
691 (expand_builtin_set_eh_regs): Likewise.
692 (eh_regs): Choose two call-clobbered registers for passing back values.
694 * frame.c, frame.h: New files for parsing dwarf 2 frame info.
695 * Makefile.in (LIB2ADD): New variable. Add $(srcdir)/frame.c.
696 (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
697 (stmp-multilib): Likewise.
698 ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
700 * except.c: #include "defaults.h".
701 (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
702 (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
703 (register_exception_table_p): New fn.
704 (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
705 (end_eh_unwinder): Likewise.
707 * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
708 call __register_frame and __deregister_frame as needed.
709 * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
710 * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro. Check
711 EH_FRAME_SECTION_ASM_OP.
712 * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
713 * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
714 (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
716 * dwarf2out.c (output_call_frame_info): If no support for
717 EXCEPTION_SECTION, mark the start of the frame info with a
719 * collect2.c (frame_tables): New list.
720 (is_ctor_dtor): Recognise frame entries.
721 (scan_prog_file): Likewise.
722 (main): Pass -fno-exceptions to sub-compile. Also do collection
723 if there are any frame entries.
724 (write_c_file_stat): Call __register_frame_table and
725 __deregister_frame as needed.
726 (write_c_file_glob): Likewise.
728 * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
729 Also require unaligned reloc support.
730 * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
731 UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
732 * sparc/sysv4.h: Not here.
734 * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
735 * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
736 (dwarf2out_finish): Don't call dwarf2out_frame_finish.
738 * libgcc2.c (L_eh): Reorganize, moving code shared by different
739 EH implementations to the top.
740 (find_exception_handler): Split out. Start from 0. Compare against
742 (__find_first_exception_table_match): Use it.
743 * except.c (output_exception_table): Don't do anything if there's
744 no table. Don't output a first entry of zeroes.
745 (eh_outer_context): Adjust properly.
746 (add_eh_table_entry): Use xrealloc.
747 * toplev.c (compile_file): Just call output_exception_table.
749 Wed Sep 10 11:30:36 1997 Jason Merrill <jason@cygnus.com>
751 * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
753 Wed Sep 10 08:17:10 1997 Torbjorn Granlund <tege@pdc.kth..se>
755 * except.c (eh_outer_context): Do masking using expand_and.
757 Wed Sep 10 01:38:30 1997 Doug Evans <dje@cygnus.com>
759 Add port done awhile ago for the ARC cpu.
760 * arc/arc.h: New file.
761 * arc/arc.c: New file.
762 * arc/arc.md: New file.
763 * arc/initfini.c: New file.
764 * arc/lib1funcs.asm: New file.
765 * arc/t-arc: New file.
766 * arc/xm-arc.h: New file.
767 * ginclude/va-arc.h: New file.
768 * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
769 * ginclude/varargs.h: Likewise.
770 * Makefile.in (USER_H): Add va-arc.h.
771 * configure.in (arc-*-elf*): Recognize.
772 * longlong.h: Add ARC support.
774 Wed Sep 10 01:32:54 1997 Jeffrey A Law (law@cygnus.com)
776 * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
777 when clearing non-BLKmode data.
779 Wed Sep 10 00:29:29 1997 Manfred Hollstein <manfred@s-direktnet.de>
781 * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
782 * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
784 * xm-m88k.h (USG): Only define if it hasn't already been defined.
786 * Makefile.in (risky-stage1): Delete gratutious whitespace.
788 * Makefile.in (clean): Delete libgcc1-test.
790 * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
792 Tue Sep 9 17:07:36 1997 Stan Cox <coxs@dg-rtp.dg.com>
794 * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
797 Tue Sep 9 09:50:02 1997 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
799 * dwarf2out.c (output_call_frame_info): Call named_section.
801 Tue Sep 9 09:12:17 1997 Jeffrey A Law (law@cygnus.com)
803 * haifa-sched.c (print_value): Fix last change.
805 Tue Sep 9 01:30:37 1997 Jason Merrill <jason@yorick.cygnus.com>
807 * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
810 Mon Sep 8 16:32:43 1997 Jason Merrill <jason@yorick.cygnus.com>
812 * mips.c (function_prologue): Set up the CFA when ABI_32.
814 * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
815 for dwarf2 unwind info.
816 (output_function_prologue, sparc_flat_output_function_prologue): Same.
818 * final.c (final_end_function): Check dwarf2out_do_frame instead
819 of DWARF2_DEBUG for dwarf2 unwind info.
820 (final_scan_insn): Likewise.
821 (final_start_function): Likewise. Initialize dwarf2 frame debug here.
824 * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
827 * varasm.c (exception_section): Check EXCEPTION_SECTION first.
829 Mon Sep 8 15:15:11 1997 Nick Clifton <nickc@cygnus.com>
831 * v850.h (ASM_SPEC): Pass on target processor.
832 (CPP_PREDEFINES): Only define if not already specified.
833 (TARGET_VERSION): Only define if not already specified.
834 (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
836 (EXTRA_SWITCHES): Extra entries in the switches array.
837 (TARGET_DEFAULT): Set default target processor.
839 Mon Sep 8 18:26:35 1997 Jim Wilson <wilson@cygnus.com>
841 * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
842 cases, add %# and %/, and add : to make them into extended asms.
844 Sun Sep 7 23:57:50 1997 Weiwen Liu <liu@hepunix.physics.yale.edu>
846 * alias.c (init_alias_analysis): Clean up incompatible pointer
847 type warning in bzero.
848 * regmove.c (regmove_optimize): Ditto.
849 * haifa-sched.c (find_rgns): Ditto.
851 * haifa-sched.c (print_value): Clean up ptr->int cast
854 Sun Sep 7 23:18:32 1997 Fred Fish <fnf@ninemoons.com>
856 * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
857 * install.texi (Configurations): Ditto.
860 Sun Sep 7 22:56:56 1997 Weiwen Liu (liu@hepvms.physics.yale.edu)
862 * Makefile.in (sdbout.o): Depend on insn-config.h.
864 Sun Sep 7 18:44:50 1997 Jim Wilson <wilson@cygnus.com>
866 * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
867 For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
869 Sun Sep 7 18:30:46 1997 Jason Merrill <jason@yorick.cygnus.com>
871 * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
872 prologue insn, only the first elt is significant.
873 (output_call_frame_info): For exception handling, always use 4-byte
874 fields as specified by the dwarf2 spec.
875 Don't skip trivial FDEs.
877 Sun Sep 7 14:19:39 1997 Jeffrey A Law (law@cygnus.com)
879 * version.c: Bump for snapshot.
881 Sun Sep 7 14:17:36 1997 Torbjorn Granlund (tege@pdc.kth.se)
883 * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
884 for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
887 Sun Sep 7 13:46:46 1997 Jeffrey A Law (law@cygnus.com)
889 * final.c (shorten_branches): During first pass, assume worst
890 possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
892 * Makefile.in (distclean): Remove various things left around
893 by running the testsuite.
895 Sun Sep 7 13:16:06 1997 Manfred Hollstein <manfred@s-direktnet.de>
897 * configure.in (out_file): Emit definition to config.status in order
898 to have a defined value for configure.lang.
899 * configure: Re-built.
901 Sun Sep 7 09:59:08 1997 Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
903 * configure.in: Make symlink to as-new rather than as.new. Similarly
905 * configure: Rebuilt.
907 Fri Sep 5 16:54:55 1997 Jim Wilson <wilson@cygnus.com>
909 * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
911 Fri Sep 5 16:16:44 1997 Christian Kuehnke <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
913 * sparc/sparc.md: Add ultrasparc scheduling support.
914 * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
916 Fri Sep 5 14:04:59 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
918 * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
919 as initial value for real_label_map.
920 (copy_for_inline): Likewise.
922 Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
924 * sched.c (update_flow_info) When looking if to set found_split_dest
925 or found_orig_dest, look at all parts of a PARALLEL.
926 * haifa-sched.c (update_flow_info): Likewise.
928 Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
930 * v850: New directory for v850 port.
931 * v850/lib1funcs.asm: New file.
932 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
933 * ginclude/va-v850.h: New file.
934 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
935 * configure.in (mn10200-*-*): New target.
936 * configure: Rebuilt.
937 * config.sub: Handle v850-elf.
938 * Makefile.in (USER_H): Add va-mn10200.h.
939 * invoke.texi: Document v850 stuff.
941 Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
943 * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
944 has integer TYPE_{MAX,MIN}_VALUE before using them.
946 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
947 __HPUX_ASM__ versions.
949 Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
951 * install.sh: Delete duplicate install script.
953 Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
955 * reg-stack.c (subst_stack_regs): Pop the stack register for a
956 computed goto which sets the same stack register.
958 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
959 destination are both on the regstack.
960 (subst_stack_regs_pat): Put the destination at the top of the regstack.
962 Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
964 * mips.md (nonlocal_goto_receiver): Define.
966 * profile.c (output_arc_profiler): Check next_insert_after for non
967 NULL before deferencing it.
969 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
971 Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
973 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
975 Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
977 * toplev.c (rest_of_compilation): For passes starting with
978 flow_analysis, use print_rtl_with_bb instead of print_rtl.
980 * print-rtl.c (print_rtl_single): Print a single rtl value to a
983 * flow.c (print_rtl_with_bb): Print which insns start and end
984 basic blocks. For the start of a basic block, also print the live
987 Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
989 * toplev.c (main): Change #elif to #else/#ifdef
991 * tlink.c: Include ctype.h.
992 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
994 Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
996 * bitmap.c: Conditionally include stdlib.h.
997 (free): Provide a declaration if NEED_DECLARATION_FREE.
999 Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
1001 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
1003 Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
1005 * profile.c (output_arc_profiler): Verify next_insert_after is an
1006 INSN before and after skipping a stack pop.
1008 Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
1010 * final.c (shorten_branches): Don't count the lengths of deleted
1013 Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
1015 * version.c: Bump for snapshot.
1017 Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
1019 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
1020 two bitmaps ANDed together.
1021 (bitmap_print): Declare.
1023 * bitmap.c (function_obstack): Don't declare any more.
1024 (bitmap_obstack): Obstack for allocating links from.
1025 (bitmap_obstack_init): New static to say whether to initialize
1027 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
1028 (bitmap_release_memory): Free all memory allocated from
1031 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
1032 EXECUTE_IF_AND_IN_BITMAP.
1034 Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
1036 * alias.c (true_dependence): Address with AND can alias scalars.
1037 (anti_dependence, output_dependence): Likewise.
1039 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
1041 Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
1043 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
1044 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
1045 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
1046 definitions. Use -qrtems instead of -mrtems.
1048 Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
1050 * xm-sco5.h (sys_siglist): Define.
1051 (SYS_SIGLIST_DECLARED): Likewise.
1053 Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
1055 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
1057 Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
1059 * except.c (eh_outer_context): Expand masking operation using
1062 Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
1064 * alpha.md (floatdisf2-1): New pattern.
1066 Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
1068 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
1069 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
1070 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
1071 * gcc.texi: Note that if you define sys_siglist that you should
1072 also define SYS_SIGLIST_DECLARED.
1074 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
1075 are relative to the next instruction, not the current instruction.
1077 Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
1079 * local-alloc.c (contains_replace_regs): New function.
1080 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
1081 verify that there is no existing REG_EQUIV note, and add a call to
1082 contains_place_regs.
1084 Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1086 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
1087 (STARTFILE_SPEC): Always use crtbegin.o%s
1088 (ENDFILE_SPEC): Always use crtend.o%s.
1090 Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
1092 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
1094 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
1095 SFmode for 64 bit hosts.
1097 Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
1099 * fixincludes: Permits spaces between # and define. Discard C++
1100 comments in sys/pci.h on HP/UX 10.20.
1102 Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
1104 * version.c: Bump for snapshot.
1106 * pa.c (restore_unscaled_index_insn_codes): New function.
1107 (record_unscaled_index_insn_codes): Likewise.
1108 (output_function_prologue): Call restore_unscaled_index_insn_codes.
1109 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
1110 (pa_reorg): Call record_unscaled_index_insn_codes.
1112 * haifa-sched.c (move_insn): Handle notes correctly for insns
1113 with SCHED_GROUP_P set.
1115 Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1117 * alpha/xm-linux.h (USE_BFD): Undef before define.
1119 Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
1121 * cse.c (cse_insn): Don't record BLKmode values.
1123 Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
1125 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
1127 Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
1129 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
1130 * collect2.c (sys_errlist): Likewise.
1131 * cpplib.c (sys_errlist): Likewise.
1132 * gcc.c (sys_errlist): Likewise.
1133 * protoize (sys_errlist): Likewise.
1134 * configure.in: Check for strerror.
1135 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
1136 * xm-gnu.h (HAVE_STRERROR): Likewise.
1137 * xm-linux.h (HAVE_STRERROR): Likewise.
1138 * xm-netbsd.h (HAVE_STRERROR): Likewise.
1139 * xm-bsd386.h (HAVE_STRERROR): Likewise.
1140 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
1141 * xm-dos.h (HAVE_STRERROR): Likewise.
1142 * xm-mingw32.h (HAVE_STRERROR): Likewise.
1143 * xm-pa.h (HAVE_STRERROR): Likewise.
1144 * xm-papro.h (HAVE_STRERROR): Likewise.
1145 * xm-sysv4.h (HAVE_STRERROR): Likewise.
1146 * configure, config.in: Rebuilt.
1148 * Makefile.in: Add several missing "else true" clauses.
1150 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
1151 * mips-tfile.c: Likewise.
1152 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
1153 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
1154 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
1155 * configure.in: Check for sys_siglist declaration.
1156 * configure, config.in: Rebuilt.
1158 Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
1160 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
1161 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
1162 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
1163 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
1164 * rs6000/sysv4.h (extra_subtarget_switches): Added new
1165 macro EXTRA_SUBTARGET_SWITCHES.
1166 * configure.in (sh*-*-rtems*): New target.
1167 * sh/rtems.h: New file.
1168 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
1169 * configure: Rebuilt.
1171 Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
1173 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
1175 Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
1177 * rs6000.md: Make DF fused-add operations pay attention to
1180 Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
1182 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
1184 Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
1186 * pa.md (reload_peepholes): Make sure operand is a REG before
1187 examining REGNO. Allow general registers too.
1189 Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
1191 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
1193 Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
1195 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
1196 to reallocate abbrev_die_table.
1198 Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
1200 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
1202 1997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
1204 * Makefile.in (config.status): Depend on version.c
1206 * expr.h (insn_gen_function): Reenable prototype.
1208 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
1211 Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
1213 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
1215 Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
1217 * version.c: Bump for latest snapshot.
1219 * bc-optab.c: Conditionally include stdlib.h.
1220 (free): Provide a declaration if NEED_DECLARATION_FREE.
1221 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
1222 * rtl.h (free): Remove declaration.
1223 * tree.h (free): Remvoe declaration.
1225 * configure: Rebuilt.
1227 Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
1229 * flags.h (flag_move_all_movables): Declare.
1230 (flag_reduce_all_givs): Likewise.
1231 * loop.c (move_movables): Handle flag_move_all_movables.
1232 (strength_reduce): Handle flag_reduce_all_givs.
1233 * toplev.c (flag_move_all_movables): Define.
1234 (flag_reduce_all_givs): Likewise.
1235 (f_options): Add -fmove-all-movables and -freduce-all-givs.
1236 * invoke.texi: Document new options, including alias stuff that
1237 wasn't included last time.
1239 Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
1241 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
1244 * t-vxworks68: Ditto.
1245 * t-vxworks960: Ditto.
1248 Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
1250 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
1251 if not already defined, and USE_C_ALLOCA not defined.
1253 Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
1255 * config.guess: Replace with script that uses ../config.guess.
1257 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
1258 if USE_GNULIBC_1 is not defined.
1260 Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
1262 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
1263 * config.guess: Recognize alpha-linux-gnulibc1.
1264 * configure.in (alpha-*-linux-gnulibc1): New target.
1265 (alpha-*-linux-gnu*): Don't build crtbegin/end.
1267 Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
1269 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
1272 Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
1274 * loop.c (combine_movables): Earlier insns don't match later ones.
1276 Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1278 * config/linux.h (CC1_SPEC): Define it only if not defined.
1280 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
1283 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
1284 USE_GNULIBC_1 is not defined.
1286 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
1288 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
1289 as 1 if USE_GNULIBC_1 is not defined.
1291 Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
1293 * reorg.c (dbr_schedule): Allow current_function_return_rtx
1294 to be something other than a REG.
1295 * function.c (expand_function_end): Fix current_function_return_rtx
1298 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
1299 * x-netbsd: Likewise
1300 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
1301 (INSTALL_HEADERS): Delete.
1302 * x-dguxbcs: Likewise.
1303 * x-hp3bsd44: Likewise
1306 Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
1308 * i386.md (pop): pop increments the stack pointer.
1309 (prologue_set_stack_ptr): New pattern.
1310 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
1313 Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
1315 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
1316 address where an offsettable address is required.
1318 Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
1320 * loop.c (check_final_value): Don't miss a biv increment in a
1323 Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
1325 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
1326 TYPE_DECL_IS_STUB instead of DECL_NAME.
1328 Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1330 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
1332 Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
1334 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
1336 Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
1338 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1339 (find_post_sched_live): Likewise.
1341 * haifa-sched.c (schedule_block): Remove old code to get arguments
1342 from hard regs into pseudos early.
1344 Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
1346 * version.c: Bump for new snapshot.
1348 * local-alloc.c (update_equiv_regs): All the target to reject
1349 promotion of some REG_EQUAL to REG_EQUIV notes.
1350 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
1352 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
1355 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
1356 store of the argument registers.
1358 Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
1360 * fold-const.c (multiple_of_p): New function.
1361 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
1363 Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
1365 * expr.h (insn_gen_function): Temporarily remove prototype.
1367 Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
1369 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
1370 filenames. Use sed to extract base filename for install.
1372 Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
1374 * unroll.c (find_splittable_givs): Only share if two givs have the
1375 same add and multiply values.
1377 Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
1379 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
1380 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
1382 Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
1384 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
1385 around branch tables.
1386 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
1387 and .end_brtab directives if TARGET_GAS.
1389 Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
1391 * alias.c (true_dependence): Pass x_addr not x to varies.
1393 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
1394 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
1395 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
1397 * config.in, configure: Regenerate.
1399 Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
1401 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
1403 (record_set): Handle LO_SUM like PLUS.
1404 (init_alias_analysis): When following chains of base addresses,
1405 do not stop on reaching a hard register.
1407 Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
1409 * version.c: Bump for new snapshot.
1411 Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
1413 * alpha.h (ARCH_ASM_FILE_START): Define.
1414 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
1415 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
1417 Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
1419 * Makefile.in (install-common): Put gcov comment at start of line.
1421 Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
1423 * alias.c (init_alias_analysis): When simplifying the reg_base_value
1424 array, simplify entries for hard registers too.
1426 Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
1428 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
1431 Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
1433 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
1434 block_stack before dereferencing it.
1436 Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
1438 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
1440 Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
1442 * cplus-dem.c: Add 'extern' to prepends_underscore.
1444 Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
1446 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
1447 (get_issue_rate): Delete.
1448 * pa.h (ISSUE_RATE): Define.
1450 * configure.in: Turn on haifa by default for the PA.
1451 * configure: Rebuilt.
1452 * pa.c (override_options): Accept -mschedule=7200 option.
1453 (pa_adjust_cost): No longer need to scale costs for newer
1455 * pa.h (enum processor_type): Add PROCESSOR_7200.
1456 * pa.md: Revamp scheduling parameters to work better with
1457 haifa. Add scheduling parameters for the 7200.
1459 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1461 (schedule_block): When adjusting basic_block_{head,end}, account
1462 for movement of SCHED_GROUP_P insns too.
1464 * haifa-sched.c (debug_dependencies): Fix thinko.
1466 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1467 (site.exp, check, check-g++, check-gcc): New targets.
1469 * haifa-sched.c: Make lots of variables static.
1471 Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
1473 * expr.h, real.h: Finish prototyping.
1475 Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
1477 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1478 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1479 * reload1.c: Undo bugfix from Aug 11.
1481 Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
1483 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1484 quotes around the name.
1485 * configure: Regenerate.
1487 Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
1489 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1491 Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
1493 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1494 to sub-makes to avoid building more passes than the user might have
1495 requested on the command line.
1497 Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
1499 * configure.in: Expurgate `broken_install' (install is
1502 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1505 Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
1507 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1508 functions and declarations.
1509 (analyze_loop_iterations): Use condjump_p.
1510 (insert_bct): Likewise. Use exact_log2.
1512 Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
1514 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1515 (schedule_region): Likewise.
1516 (schedule_insns): Likewise.
1518 * PROJECTS: Update with Haifa stuff.
1520 Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
1522 * version.c: Change the version string to look like:
1523 egcs-2.90.00 970814 (gcc2-970802 experimental).
1525 * loop.c (is_conditional_branch): Make definition match declaration.
1527 * gcc.c: Take out experimental snapshot warning message.
1529 Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
1531 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1532 print out the names of the notes. Print out the name of the insn
1533 that is not a note, and not an {,CALL_,JUMP_}INSN.
1535 Wed Aug 13 17:32:38 1997 Jason Merrill <jason@yorick.cygnus.com>
1537 * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1538 again for the slot after we give it RTL.
1540 Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
1542 * configure.in (haifa configury): Fix typo.
1543 * configure: Regenerate.
1545 Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
1547 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1549 * gcc.info*: Rebuilt.
1551 * COPYING.g77, README.g77: New files.
1552 * real.c (ereal_unto_float, ereal_unto_double): New functions.
1553 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1554 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1556 Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
1558 * Integrate Haifa instruction scheduler.
1559 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
1560 to sched with $(SCHED_CFLAGS.
1561 * configure.in: Handle --enable-haifa.
1562 * configure: Rebuilt.
1563 * flags.h: Add new flags for haifa instruction scheduler.
1564 * genattrtab.c (expand_units): For haifa, don't subtract one
1565 when computing blockage.
1566 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1567 (flag_schedule_speculative): Ditto.
1568 (flag_schedule_speculative_load): Ditto.
1569 (flag_schedule_speculative_load_dangerous): Ditto.
1570 (flag_schedule_reverse_before_reload): Ditto.
1571 (flag_schedule_reverse_after_reload): Ditto.
1572 (flag_branch_on_count_reg): Ditto.
1573 (f_options): Add Haifa switches.
1574 (main): Turn off some Haifa options if appropriate macro is
1575 defined. Process Haifa switches.
1576 * unroll.c (iteration_info): No longer static, since Haifa
1578 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1579 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1580 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1581 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1582 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1583 storage for the Haifa scheduler.
1584 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1586 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1587 are defined, call analyze_loop_iterations and insert_bct to use
1589 (record_giv): Refine test for jumps out of loops if HAIFA is
1591 (analyze_loop_iterations): New function to identify if we can use
1593 (insert_bct): Insert countdown loop.
1594 (instrument_loop_bct): Low level code to insert countdown loop.
1595 (loop_number): Calculate UID of loop.
1596 (indirect_jump_in_function_p): Return true if an indirect jump is
1598 (is_power_of_2): Return true if value is a power of 2.
1599 (is_conditional_branch): Return true if insn is a conditional
1601 (fix_bct_param): Process -fbct-{min,max}-N switches.
1602 (check_bct_param): Return true if loop should be instrumented.
1603 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1604 (loop_optimize): Initialize.
1605 (get_condition_for_loop): Ditto.
1606 * loop.c (strength_reduce): Inside of code that uses #ifdef
1607 HAVE_decrement_and_branch_on_count code, test it to make sure the
1609 (instrument_loop_bct): Ditto.
1610 * haifa-sched.c: New file.
1613 * Integrate regmove pass.
1614 * Makefile.in (OBJS): Add regmove.o
1615 (regmove.o): Add dependencies.
1616 * flow.c (find_use_as_address): No longer static.
1617 * rtl.h (find_use_as_address): Declare.
1618 * toplev.c (regmove_dump, flag_regmove): Define.
1619 (f_options): Add -fregmove.
1620 (regmove_dump_file, regmove_time): Define.
1621 (fatal_insn): Close the regmove dump file.
1622 (compile_file): Initialize regmove_time; open/close the regmove dump
1623 file as needed. Print regmove time as needed.
1624 (rest_of_compilation): Run regmove pass if requested, dump
1625 RTL after regmove if requested.
1626 (main): If -O2 or more, turn on regmove. Handle dump switches.
1627 * regmove.c: New file.
1629 Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
1631 * Integrate tlink patch from jason@cygnus.com
1632 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1633 (process_command): Increment n_switches for them. Don't discard
1634 their args. Validate them.
1635 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1637 (process_command): Set include_prefixes from COMPILER_PATH.
1638 (main): Set COLLECT_GCC_OPTIONS sooner.
1639 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1640 * tlink.c, hash.c, hash.h: New files.
1641 * Makefile.in (USE_COLLECT2): Always use collect2.
1642 (collect2): Depend on and link in hash.o and tlink.o.
1643 (tlink.o, hash.o): Add dependencies.
1645 Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
1647 * Integrate alias analysis changes from jfc@mit.edu
1648 * Makefile.in (OBJS): Add alias.o
1649 (alias.o): Add dependencies.
1650 * alias.c: New file.
1651 * sched.c: Remove alias analysis code. It lives in alias.c now.
1652 (sched_analyze_2): Add new arguments to true_dependence.
1653 (schedule_insns): Always call init_alias_analysis.
1654 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1655 mark return value from such functions as a pointer and keep track of
1656 them for alias analysis. If a return value from a function is a
1657 pointer, mark it as such.
1658 * combine.c (distribute_notes): Handle REG_NOALIAS.
1659 * cse.c (struct write_data): Delete. No longer needed.
1660 (invalidate): Don't call set_nonvarying_address_components anymore.
1661 Use true_dependence to decide if an entry should be removed from
1663 (invalidate_memory): Remove WRITES argument, simplify appropriately.
1665 (note_mem_written): Similarly for WRITE_PTR argument.
1666 (invalidate_from_clobbers): Similarly for W argument.
1667 (invalidate_for_call): Remove memory elements from the hash table.
1668 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1669 (cse_rtx_varies_p): New function. Derived from old
1670 cse_rtx_addr_varies_p.
1671 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1672 Don't call note_mem_written anymore. Stack pushes invalidate the stack
1673 pointer if PUSH_ROUNDING is defined. No longer need to call
1674 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1675 (skipped_writes_memory): Remove variable.
1676 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1677 (invalidate_skipped_block): Simplify for new alias analysis code.
1678 (cse_set_around_loop): Likewise.
1679 (cse_main): Call init_alias_analysis.
1680 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1681 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1682 (f_options): Add new alias checking arguments.
1683 (main): Set flag_alias_check when optimizing.
1684 * local_alloc (validate_equiv_mem_from_store): Add new arguments
1686 (memref_referenced_p): Likewise.
1687 * loop.c (NUM_STORES): Increase to 30.
1688 (prescan_loop): Only non-constant calls set unknown_address_altered.
1689 (invariant_p): Add new arguments to true_dependence.
1690 (record_giv): Initialize unrolled and shared fields.
1691 (emit_iv_add_mult): Call record_base_value as needed.
1692 * loop.h (struct induction): Add unrolled and shared fields.
1693 * unroll.c (unroll_loop): Call record_base_value as needed.
1694 (copy_loop_body): Likewise.
1695 (final_biv_value): Likewise.
1696 (final_giv_value): Likewise.
1697 (find_splittable_regs): Likewise. Only create one new pseudo
1698 if we have multiple address GIVs that were combined with the same
1699 dst_reg GIV. Note when a new register is created due to unrolling.
1700 * rtl.c (reg_note_name): Add REG_NOALIAS.
1701 * rtl.h (enum reg_note): Similarly.
1702 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1703 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1704 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1705 (true_dependence, read_dependence, anti_dependence): Likewise.
1706 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1707 (mark_user_reg, mark_reg_pointer): Likewise.
1710 * Integrate reload bugfix from Wilon which enables the PA port
1712 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1713 OPERAND_ADDRESS when computing how many registers an insn needs.
1714 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1716 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1718 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1719 in reload_reg_use_in_op_addr do not reach the end.
1720 do not reach the end.
1721 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1722 RELOAD_FOR_OPERAND_ADDRESS.
1724 Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
1726 * egcs project officially starts.