1 Wed Sep 10 00:29:29 1997 Manfred Hollstein <manfred@s-direktnet.de>
3 * Makefile.in (clean): Delete libgcc1-test.
5 * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
7 Tue Sep 9 17:07:36 1997 Stan Cox <coxs@dg-rtp.dg.com>
9 * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
12 Tue Sep 9 09:12:17 1997 Jeffrey A Law (law@cygnus.com)
14 * haifa-sched.c (print_value): Fix last change.
16 Mon Sep 8 15:15:11 1997 Nick Clifton <nickc@cygnus.com>
18 * v850.h (ASM_SPEC): Pass on target processor.
19 (CPP_PREDEFINES): Only define if not already specified.
20 (TARGET_VERSION): Only define if not already specified.
21 (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
23 (EXTRA_SWITCHES): Extra entries in the switches array.
24 (TARGET_DEFAULT): Set default target processor.
26 Mon Sep 8 18:26:35 1997 Jim Wilson <wilson@cygnus.com>
28 * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
29 cases, add %# and %/, and add : to make them into extended asms.
31 Sun Sep 7 23:57:50 1997 Weiwen Liu <liu@hepunix.physics.yale.edu>
33 * alias.c (init_alias_analysis): Clean up incompatible pointer
34 type warning in bzero.
35 * regmove.c (regmove_optimize): Ditto.
36 * haifa-sched.c (find_rgns): Ditto.
38 * haifa-sched.c (print_value): Clean up ptr->int cast
41 Sun Sep 7 23:18:32 1997 Fred Fish <fnf@ninemoons.com>
43 * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
44 * install.texi (Configurations): Ditto.
47 Sun Sep 7 22:56:56 1997 Weiwen Liu (liu@hepvms.physics.yale.edu)
49 * Makefile.in (sdbout.o): Depend on insn-config.h.
51 Sun Sep 7 18:44:50 1997 Jim Wilson <wilson@cygnus.com>
53 * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
54 For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
56 Sun Sep 7 18:30:46 1997 Jason Merrill <jason@yorick.cygnus.com>
58 * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
59 prologue insn, only the first elt is significant.
60 (output_call_frame_info): For exception handling, always use 4-byte
61 fields as specified by the dwarf2 spec.
62 Don't skip trivial FDEs.
64 Sun Sep 7 14:19:39 1997 Jeffrey A Law (law@cygnus.com)
66 * version.c: Bump for snapshot.
68 Sun Sep 7 14:17:36 1997 Torbjorn Granlund (tege@pdc.kth.se)
70 * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
71 for negative constants. Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
74 Sun Sep 7 13:46:46 1997 Jeffrey A Law (law@cygnus.com)
76 * final.c (shorten_branches): During first pass, assume worst
77 possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
79 * Makefile.in (distclean): Remove various things left around
80 by running the testsuite.
82 Sun Sep 7 13:16:06 1997 Manfred Hollstein <manfred@s-direktnet.de>
84 * configure.in (out_file): Emit definition to config.status in order
85 to have a defined value for configure.lang.
86 * configure: Re-built.
88 Sun Sep 7 09:59:08 1997 Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
90 * configure.in: Make symlink to as-new rather than as.new. Similarly
94 Fri Sep 5 16:54:55 1997 Jim Wilson <wilson@cygnus.com>
96 * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
98 Fri Sep 5 16:16:44 1997 Christian Kuehnke <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
100 * sparc/sparc.md: Add ultrasparc scheduling support.
101 * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
103 Fri Sep 5 14:04:59 1997 Philippe De Muyter <phdm@info.ucl.ac.be>
105 * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
106 as initial value for real_label_map.
107 (copy_for_inline): Likewise.
109 Fri Sep 5 13:36:44 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
111 * sched.c (update_flow_info) When looking if to set found_split_dest
112 or found_orig_dest, look at all parts of a PARALLEL.
113 * haifa-sched.c (update_flow_info): Likewise.
115 Fri Sep 5 10:08:44 1997 Jeffrey A Law (law@cygnus.com)
117 * v850: New directory for v850 port.
118 * v850/lib1funcs.asm: New file.
119 * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
120 * ginclude/va-v850.h: New file.
121 * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
122 * configure.in (mn10200-*-*): New target.
123 * configure: Rebuilt.
124 * config.sub: Handle v850-elf.
125 * Makefile.in (USER_H): Add va-mn10200.h.
126 * invoke.texi: Document v850 stuff.
128 Fri Sep 5 09:37:50 1997 Jim Wilson (wilson@cygnus.com)
130 * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
131 has integer TYPE_{MAX,MIN}_VALUE before using them.
133 * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
134 __HPUX_ASM__ versions.
136 Fri Sep 5 09:08:44 1997 Jeffrey A Law (law@cygnus.com)
138 * install.sh: Delete duplicate install script.
140 Thu Sep 4 23:14:27 1997 Stan Cox (coxs@dg-rtp.dg.com)
142 * reg-stack.c (subst_stack_regs): Pop the stack register for a
143 computed goto which sets the same stack register.
145 * reg-stack.c (compare_for_stack_reg): Swap only if the source and
146 destination are both on the regstack.
147 (subst_stack_regs_pat): Put the destination at the top of the regstack.
149 Thu Sep 4 15:02:27 1997 Jim Wilson <wilson@cygnus.com>
151 * mips.md (nonlocal_goto_receiver): Define.
153 * profile.c (output_arc_profiler): Check next_insert_after for non
154 NULL before deferencing it.
156 * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
158 Thu Sep 4 14:51:57 1997 Jeffrey A Law (law@cygnus.com)
160 * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
162 Thu Sep 4 15:01:49 1997 Michael Meissner <meissner@cygnus.com>
164 * toplev.c (rest_of_compilation): For passes starting with
165 flow_analysis, use print_rtl_with_bb instead of print_rtl.
167 * print-rtl.c (print_rtl_single): Print a single rtl value to a
170 * flow.c (print_rtl_with_bb): Print which insns start and end
171 basic blocks. For the start of a basic block, also print the live
174 Thu Sep 4 11:51:43 1997 Jim Wilson <wilson@cygnus.com>
176 * toplev.c (main): Change #elif to #else/#ifdef
178 * tlink.c: Include ctype.h.
179 * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
181 Thu Sep 4 11:17:16 1997 Mikeael Meissner (meissner@cygnus.com)
183 * bitmap.c: Conditionally include stdlib.h.
184 (free): Provide a declaration if NEED_DECLARATION_FREE.
186 Thu Sep 4 09:58:53 1997 Joel Sherrill (joel@OARcorp.com)
188 * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
190 Thu Sep 4 09:53:20 1997 Jim Wilson (wilson@cygnus.com)
192 * profile.c (output_arc_profiler): Verify next_insert_after is an
193 INSN before and after skipping a stack pop.
195 Thu Sep 4 07:39:19 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
197 * final.c (shorten_branches): Don't count the lengths of deleted
200 Thu Sep 4 09:43:01 1997 Jeffrey A Law (law@cygnus.com)
202 * version.c: Bump for snapshot.
204 Thu Sep 4 11:04:21 1997 Michael Meissner <meissner@cygnus.com>
206 * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
207 two bitmaps ANDed together.
208 (bitmap_print): Declare.
210 * bitmap.c (function_obstack): Don't declare any more.
211 (bitmap_obstack): Obstack for allocating links from.
212 (bitmap_obstack_init): New static to say whether to initialize
214 (bitmap_element_allocate): Use bitmap_obstack to allocate from.
215 (bitmap_release_memory): Free all memory allocated from
218 * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
219 EXECUTE_IF_AND_IN_BITMAP.
221 Wed Sep 3 10:39:42 1997 Jim Wilson <wilson@cygnus.com>
223 * alias.c (true_dependence): Address with AND can alias scalars.
224 (anti_dependence, output_dependence): Likewise.
226 * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
228 Wed Sep 3 09:28:50 CDT 1997 Joel Sherrill (joel@OARcorp.com)
230 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
231 mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
232 sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
233 definitions. Use -qrtems instead of -mrtems.
235 Wed Sep 3 09:05:41 1997 Robert Lipe (robert@dgii.com)
237 * xm-sco5.h (sys_siglist): Define.
238 (SYS_SIGLIST_DECLARED): Likewise.
240 Tue Sep 2 23:33:33 1997 Jeffrey A Law (law@cygnus.com)
242 * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
244 Wed Sep 3 02:09:30 1997 Torbjorn Granlund <tege@pdc.kth..se>
246 * except.c (eh_outer_context): Expand masking operation using
249 Tue Sep 2 18:09:39 1997 Jim Wilson <wilson@cygnus.com>
251 * alpha.md (floatdisf2-1): New pattern.
253 Tue Sep 2 18:41:55 1997 Jeffrey A Law (law@cygnus.com)
255 * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
256 * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
257 * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
258 * gcc.texi: Note that if you define sys_siglist that you should
259 also define SYS_SIGLIST_DECLARED.
261 * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
262 are relative to the next instruction, not the current instruction.
264 Tue Sep 2 14:22:43 1997 Jim Wilson <wilson@cygnus.com>
266 * local-alloc.c (contains_replace_regs): New function.
267 (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
268 verify that there is no existing REG_EQUIV note, and add a call to
271 Tue Sep 2 12:48:11 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
273 * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
274 (STARTFILE_SPEC): Always use crtbegin.o%s
275 (ENDFILE_SPEC): Always use crtend.o%s.
277 Tue Sep 2 12:00:36 1997 Jim Wilson <wilson@cygnus.com>
279 * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
281 * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
282 SFmode for 64 bit hosts.
284 Tue Sep 2 13:42:38 1997 Paul N. Hilfinger <hilfingr@CS.Berkeley.EDU>
286 * fixincludes: Permits spaces between # and define. Discard C++
287 comments in sys/pci.h on HP/UX 10.20.
289 Mon Sep 1 22:13:18 1997 Jeffrey A Law (law@cygnus.com)
291 * version.c: Bump for snapshot.
293 * pa.c (restore_unscaled_index_insn_codes): New function.
294 (record_unscaled_index_insn_codes): Likewise.
295 (output_function_prologue): Call restore_unscaled_index_insn_codes.
296 (output_function_epilogue): Free memory for unscaled_index_insn_codes.
297 (pa_reorg): Call record_unscaled_index_insn_codes.
299 * haifa-sched.c (move_insn): Handle notes correctly for insns
300 with SCHED_GROUP_P set.
302 Mon Sep 1 16:58:57 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
304 * alpha/xm-linux.h (USE_BFD): Undef before define.
306 Mon Sep 1 16:25:34 1997 Jim Wilson <wilson@cygnus.com>
308 * cse.c (cse_insn): Don't record BLKmode values.
310 Mon Sep 1 11:25:47 1997 Stephen Williams (steve@icarus.icarus.com)
312 * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
314 Mon Sep 1 08:29:46 1997 Jeffrey A Law (law@cygnus.com)
316 * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
317 * collect2.c (sys_errlist): Likewise.
318 * cpplib.c (sys_errlist): Likewise.
319 * gcc.c (sys_errlist): Likewise.
320 * protoize (sys_errlist): Likewise.
321 * configure.in: Check for strerror.
322 * xm-freebsd.h (HAVE_STRERROR): Remove definition.
323 * xm-gnu.h (HAVE_STRERROR): Likewise.
324 * xm-linux.h (HAVE_STRERROR): Likewise.
325 * xm-netbsd.h (HAVE_STRERROR): Likewise.
326 * xm-bsd386.h (HAVE_STRERROR): Likewise.
327 * xm-cygwin32.h (HAVE_STRERROR): Likewise.
328 * xm-dos.h (HAVE_STRERROR): Likewise.
329 * xm-mingw32.h (HAVE_STRERROR): Likewise.
330 * xm-pa.h (HAVE_STRERROR): Likewise.
331 * xm-papro.h (HAVE_STRERROR): Likewise.
332 * xm-sysv4.h (HAVE_STRERROR): Likewise.
333 * configure, config.in: Rebuilt.
335 * Makefile.in: Add several missing "else true" clauses.
337 * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
338 * mips-tfile.c: Likewise.
339 * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
340 * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
341 * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
342 * configure.in: Check for sys_siglist declaration.
343 * configure, config.in: Rebuilt.
345 Mon Sep 1 08:04:07 1997 Joel Sherrill (joel@OARcorp.com)
347 * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
348 m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
349 sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
350 * i960/i960.h: Added SUBTARGET_SWITCHES macro.
351 * rs6000/sysv4.h (extra_subtarget_switches): Added new
352 macro EXTRA_SUBTARGET_SWITCHES.
353 * configure.in (sh*-*-rtems*): New target.
354 * sh/rtems.h: New file.
355 * sh/sh.h: Added SUBTARGET_SWITCHES macro.
356 * configure: Rebuilt.
358 Sat Aug 30 22:54:26 1997 Jim Wilson <wilson@cygnus.com>
360 * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
362 Sat Aug 30 10:49:46 1997 David Edelsohn <edelsohn@mhpcc.edu>
364 * rs6000.md: Make DF fused-add operations pay attention to
367 Fri Aug 29 19:19:54 1997 Jim Wilson <wilson@cygnus.com>
369 * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
371 Fri Aug 29 16:13:51 1997 Jeffrey A Law (law@cygnus.com)
373 * pa.md (reload_peepholes): Make sure operand is a REG before
374 examining REGNO. Allow general registers too.
376 Fri Aug 29 11:42:04 1997 Jim Wilson <wilson@cygnus.com>
378 * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
380 Fri Aug 29 09:33:20 1997 Philipp Thomas (kthomas@lxi165.gwdg.de)
382 * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
383 to reallocate abbrev_die_table.
385 Thu Aug 28 15:14:46 1997 Jim Wilson <wilson@cygnus.com>
387 * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
389 1997-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
391 * Makefile.in (config.status): Depend on version.c
393 * expr.h (insn_gen_function): Reenable prototype.
395 * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
398 Thu Aug 28 13:01:43 1997 Jim Wilson <wilson@cygnus.com>
400 * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
402 Thu Aug 28 07:03:15 1997 Jeffrey A Law (law@cygnus.com)
404 * version.c: Bump for latest snapshot.
406 * bc-optab.c: Conditionally include stdlib.h.
407 (free): Provide a declaration if NEED_DECLARATION_FREE.
408 * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
409 * rtl.h (free): Remove declaration.
410 * tree.h (free): Remvoe declaration.
412 * configure: Rebuilt.
414 Wed Aug 27 21:32:20 1997 Jeffrey A Law (law@cygnus.com)
416 * flags.h (flag_move_all_movables): Declare.
417 (flag_reduce_all_givs): Likewise.
418 * loop.c (move_movables): Handle flag_move_all_movables.
419 (strength_reduce): Handle flag_reduce_all_givs.
420 * toplev.c (flag_move_all_movables): Define.
421 (flag_reduce_all_givs): Likewise.
422 (f_options): Add -fmove-all-movables and -freduce-all-givs.
423 * invoke.texi: Document new options, including alias stuff that
424 wasn't included last time.
426 Wed Aug 27 18:08:51 1997 Bob Manson (manson@cygnus.com)
428 * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
431 * t-vxworks68: Ditto.
432 * t-vxworks960: Ditto.
435 Wed Aug 27 16:35:29 1997 Richard Henderson <rth@cygnus.com>
437 * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
438 if not already defined, and USE_C_ALLOCA not defined.
440 Wed Aug 27 16:08:43 1997 Jim Wilson <wilson@cygnus.com>
442 * config.guess: Replace with script that uses ../config.guess.
444 * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
445 if USE_GNULIBC_1 is not defined.
447 Wed Aug 27 15:49:12 1997 Richard Henderson <rth@cygnus.com>
449 * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
450 * config.guess: Recognize alpha-linux-gnulibc1.
451 * configure.in (alpha-*-linux-gnulibc1): New target.
452 (alpha-*-linux-gnu*): Don't build crtbegin/end.
454 Wed Aug 27 11:52:58 1997 Jim Wilson <wilson@cygnus.com>
456 * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
459 Wed Aug 27 01:56:18 1997 Doug Evans <dje@seba.cygnus.com>
461 * loop.c (combine_movables): Earlier insns don't match later ones.
463 Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
465 * config/linux.h (CC1_SPEC): Define it only if not defined.
467 * config/m68k/linux.h (CC1_SPEC): Undefine it before include
470 * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
471 USE_GNULIBC_1 is not defined.
473 * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1.
475 * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
476 as 1 if USE_GNULIBC_1 is not defined.
478 Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com)
480 * reorg.c (dbr_schedule): Allow current_function_return_rtx
481 to be something other than a REG.
482 * function.c (expand_function_end): Fix current_function_return_rtx
485 * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
487 * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
488 (INSTALL_HEADERS): Delete.
489 * x-dguxbcs: Likewise.
490 * x-hp3bsd44: Likewise
493 Wed Aug 27 00:30:00 1997 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
495 * i386.md (pop): pop increments the stack pointer.
496 (prologue_set_stack_ptr): New pattern.
497 * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
500 Tue Aug 26 18:50:32 1997 Jim Wilson <wilson@cygnus.com>
502 * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
503 address where an offsettable address is required.
505 Tue Aug 26 17:54:56 1997 Michael P. Hayes (michaelh@ongaonga.chch.cri.nz>
507 * loop.c (check_final_value): Don't miss a biv increment in a
510 Tue Aug 26 12:03:49 1997 Jim Wilson (wilson@cygnus.com)
512 * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
513 TYPE_DECL_IS_STUB instead of DECL_NAME.
515 Mon Aug 25 23:27:10 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
517 * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
519 Mon Aug 25 23:27:10 1997 Jim Meyering <meyering@eng.ascend.com>
521 * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
523 Mon Aug 25 13:12:24 1997 Jeffrey A Law (law@cygnus.com)
525 * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
526 (find_post_sched_live): Likewise.
528 * haifa-sched.c (schedule_block): Remove old code to get arguments
529 from hard regs into pseudos early.
531 Mon Aug 25 08:55:00 1997 Jeffrey A Law (law@cygnus.com)
533 * version.c: Bump for new snapshot.
535 * local-alloc.c (update_equiv_regs): All the target to reject
536 promotion of some REG_EQUAL to REG_EQUIV notes.
537 * pa.h (DONT_RECORD_EQUIVALENCE): Define.
539 * pa.c (secondary_reload_class): (mem (mem ... )) does not need
542 * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
543 store of the argument registers.
545 Mon Aug 25 08:39:02 1997 Craig Burley (burley@gnu.ai.mit.edu)
547 * fold-const.c (multiple_of_p): New function.
548 (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
550 Mon Aug 25 01:47:41 1997 Jeffrey A Law (law@cygnus.com)
552 * expr.h (insn_gen_function): Temporarily remove prototype.
554 Sun Aug 24 17:22:21 1997 Jim Wilson <wilson@cygnus.com>
556 * Makefile.in (install-info): Don't cd into srcdir. Add srcdir to
557 filenames. Use sed to extract base filename for install.
559 Sat Aug 23 18:19:40 1997 John F. Carr <jfc@mit.edu>
561 * unroll.c (find_splittable_givs): Only share if two givs have the
562 same add and multiply values.
564 Sat Aug 23 14:36:27 1997 Jim Wilson <wilson@cygnus.com>
566 * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
567 * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
569 Sat Aug 23 00:18:22 1997 Jeffrey A Law (law@cygnus.com)
571 * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
572 around branch tables.
573 * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
574 and .end_brtab directives if TARGET_GAS.
576 Fri Aug 22 14:05:55 1997 Jim Wilson <wilson@cygnus.com>
578 * alias.c (true_dependence): Pass x_addr not x to varies.
580 * acconfig.h (NEED_DECLARATION_CALLOC): Add.
581 * configure.in: Add GCC_NEED_DECLARATION call for calloc.
582 * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
584 * config.in, configure: Regenerate.
586 Thu Aug 21 23:52:16 1997 John F. Carr <jfc@mit.edu>
588 * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
590 (record_set): Handle LO_SUM like PLUS.
591 (init_alias_analysis): When following chains of base addresses,
592 do not stop on reaching a hard register.
594 Thu Aug 21 20:17:37 1997 Jeffrey A Law (law@cygnus.com)
596 * version.c: Bump for new snapshot.
598 Thu Aug 21 17:28:00 1997 Jim Wilson <wilson@cygnus.com>
600 * alpha.h (ARCH_ASM_FILE_START): Define.
601 (ASM_FILE_START): Use ARCH_ASM_FILE_START.
602 * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
604 Thu Aug 21 10:22:19 1997 Jeffrey A Law (law@cygnus.com)
606 * Makefile.in (install-common): Put gcov comment at start of line.
608 Wed Aug 20 22:47:33 1997 Jeffrey A Law (law@cygnus.com)
610 * alias.c (init_alias_analysis): When simplifying the reg_base_value
611 array, simplify entries for hard registers too.
613 Wed Aug 20 12:35:47 1997 Dave Love <d.love@dl.ac.uk>
615 * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
618 Wed Aug 20 11:58:33 1997 Jim Wilson <wilson@cygnus.com>
620 * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
621 block_stack before dereferencing it.
623 Wed Aug 20 11:57:11 1997 Michael Meissner <meissner@cygnus.com>
625 * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
627 Tue Aug 19 17:10:56 1997 Jason Merrill <jason@yorick.cygnus.com>
629 * cplus-dem.c: Add 'extern' to prepends_underscore.
631 Tue Aug 19 09:34:57 1997 Jeffrey A Law (law@cygnus.com)
633 * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
634 (get_issue_rate): Delete.
635 * pa.h (ISSUE_RATE): Define.
637 * configure.in: Turn on haifa by default for the PA.
638 * configure: Rebuilt.
639 * pa.c (override_options): Accept -mschedule=7200 option.
640 (pa_adjust_cost): No longer need to scale costs for newer
642 * pa.h (enum processor_type): Add PROCESSOR_7200.
643 * pa.md: Revamp scheduling parameters to work better with
644 haifa. Add scheduling parameters for the 7200.
646 * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
648 (schedule_block): When adjusting basic_block_{head,end}, account
649 for movement of SCHED_GROUP_P insns too.
651 * haifa-sched.c (debug_dependencies): Fix thinko.
653 * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
654 (site.exp, check, check-g++, check-gcc): New targets.
656 * haifa-sched.c: Make lots of variables static.
658 Tue Aug 19 07:18:34 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
660 * expr.h, real.h: Finish prototyping.
662 Mon Aug 18 21:49:02 1997 Jim Wilson <wilson@cygnus.com>
664 * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
665 reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
666 * reload1.c: Undo bugfix from Aug 11.
668 Mon Aug 18 17:39:02 1997 Mike Meissner <meissner@cygnus.com>
670 * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
671 quotes around the name.
672 * configure: Regenerate.
674 Mon Aug 18 13:46:47 1997 Jim Wilson <wilson@cygnus.com>
676 * Makefile.in (stmp-multilib-sub): Fix typo in last change.
678 Thu Aug 7 10:33:13 1997 Manfred Hollstein <manfred@s-direktnet.de>
680 * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
681 to sub-makes to avoid building more passes than the user might have
682 requested on the command line.
684 Sun Aug 17 15:42:17 1997 Dave Love (d.love@dl.ac.uk)
686 * configure.in: Expurgate `broken_install' (install is
689 * configure.lang: Substitute autoconfed ${INSTALL} (not currently
692 Sat Aug 16 01:08:12 1997 Jeffrey A Law (law@cygnus.com)
694 * loop.c (is_power_of_2, is_conditional_branch): Delete unused
695 functions and declarations.
696 (analyze_loop_iterations): Use condjump_p.
697 (insert_bct): Likewise. Use exact_log2.
699 Fri Aug 15 23:48:32 1997 Jeffrey A Law (law@cygnus.com)
701 * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
702 (schedule_region): Likewise.
703 (schedule_insns): Likewise.
705 * PROJECTS: Update with Haifa stuff.
707 Fri Aug 15 12:49:56 1997 Jeffrey A Law (law@cygnus.com)
709 * version.c: Change the version string to look like:
710 egcs-2.90.00 970814 (gcc2-970802 experimental).
712 * loop.c (is_conditional_branch): Make definition match declaration.
714 * gcc.c: Take out experimental snapshot warning message.
716 Fri Aug 15 13:43:39 1997 Michael Meissner <meissner@cygnus.com>
718 * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
719 print out the names of the notes. Print out the name of the insn
720 that is not a note, and not an {,CALL_,JUMP_}INSN.
722 Wed Aug 13 01:03:37 1997 Doug Evans <dje@canuck.cygnus.com>
724 * configure.in (haifa configury): Fix typo.
725 * configure: Regenerate.
727 Tue Aug 12 10:20:36 1997 Jeffrey A Law (law@cygnus.com)
729 * version.c: Bump version to "gcc-3.0.0 970802 experimental".
731 * gcc.info*: Rebuilt.
733 * COPYING.g77, README.g77: New files.
734 * real.c (ereal_unto_float, ereal_unto_double): New functions.
735 * real.h (ereal_unto_float, ereal_unto_double): Declare them.
736 (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
738 Mon Aug 11 14:50:55 1997 Jeffrey A Law (law@cygnus.com)
740 * Integrate Haifa instruction scheduler.
741 * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS. Prefix all references
742 to sched with $(SCHED_CFLAGS.
743 * configure.in: Handle --enable-haifa.
744 * configure: Rebuilt.
745 * flags.h: Add new flags for haifa instruction scheduler.
746 * genattrtab.c (expand_units): For haifa, don't subtract one
747 when computing blockage.
748 * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
749 (flag_schedule_speculative): Ditto.
750 (flag_schedule_speculative_load): Ditto.
751 (flag_schedule_speculative_load_dangerous): Ditto.
752 (flag_schedule_reverse_before_reload): Ditto.
753 (flag_schedule_reverse_after_reload): Ditto.
754 (flag_branch_on_count_reg): Ditto.
755 (f_options): Add Haifa switches.
756 (main): Turn off some Haifa options if appropriate macro is
757 defined. Process Haifa switches.
758 * unroll.c (iteration_info): No longer static, since Haifa
760 (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
761 * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
762 * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
763 * loop.h (loop_initial_value,loop_unroll_iter): New globals.
764 * loop.c (loop_optimize): If HAIFA is defined, allocate additional
765 storage for the Haifa scheduler.
766 (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
768 (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
769 are defined, call analyze_loop_iterations and insert_bct to use
771 (record_giv): Refine test for jumps out of loops if HAIFA is
773 (analyze_loop_iterations): New function to identify if we can use
775 (insert_bct): Insert countdown loop.
776 (instrument_loop_bct): Low level code to insert countdown loop.
777 (loop_number): Calculate UID of loop.
778 (indirect_jump_in_function_p): Return true if an indirect jump is
780 (is_power_of_2): Return true if value is a power of 2.
781 (is_conditional_branch): Return true if insn is a conditional
783 (fix_bct_param): Process -fbct-{min,max}-N switches.
784 (check_bct_param): Return true if loop should be instrumented.
785 * loop.c (loop_initial_value,loop_unroll_iter): New globals.
786 (loop_optimize): Initialize.
787 (get_condition_for_loop): Ditto.
788 * loop.c (strength_reduce): Inside of code that uses #ifdef
789 HAVE_decrement_and_branch_on_count code, test it to make sure the
791 (instrument_loop_bct): Ditto.
792 * haifa-sched.c: New file.
795 * Integrate regmove pass.
796 * Makefile.in (OBJS): Add regmove.o
797 (regmove.o): Add dependencies.
798 * flow.c (find_use_as_address): No longer static.
799 * rtl.h (find_use_as_address): Declare.
800 * toplev.c (regmove_dump, flag_regmove): Define.
801 (f_options): Add -fregmove.
802 (regmove_dump_file, regmove_time): Define.
803 (fatal_insn): Close the regmove dump file.
804 (compile_file): Initialize regmove_time; open/close the regmove dump
805 file as needed. Print regmove time as needed.
806 (rest_of_compilation): Run regmove pass if requested, dump
807 RTL after regmove if requested.
808 (main): If -O2 or more, turn on regmove. Handle dump switches.
809 * regmove.c: New file.
811 Mon Aug 11 14:15:02 1997 Jeffrey A Law (law@cygnus.com)
813 * Integrate tlink patch from jason@cygnus.com
814 * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
815 (process_command): Increment n_switches for them. Don't discard
816 their args. Validate them.
817 (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
819 (process_command): Set include_prefixes from COMPILER_PATH.
820 (main): Set COLLECT_GCC_OPTIONS sooner.
821 * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
822 * tlink.c, hash.c, hash.h: New files.
823 * Makefile.in (USE_COLLECT2): Always use collect2.
824 (collect2): Depend on and link in hash.o and tlink.o.
825 (tlink.o, hash.o): Add dependencies.
827 Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
829 * Integrate alias analysis changes from jfc@mit.edu
830 * Makefile.in (OBJS): Add alias.o
831 (alias.o): Add dependencies.
833 * sched.c: Remove alias analysis code. It lives in alias.c now.
834 (sched_analyze_2): Add new arguments to true_dependence.
835 (schedule_insns): Always call init_alias_analysis.
836 * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
837 mark return value from such functions as a pointer and keep track of
838 them for alias analysis. If a return value from a function is a
839 pointer, mark it as such.
840 * combine.c (distribute_notes): Handle REG_NOALIAS.
841 * cse.c (struct write_data): Delete. No longer needed.
842 (invalidate): Don't call set_nonvarying_address_components anymore.
843 Use true_dependence to decide if an entry should be removed from
845 (invalidate_memory): Remove WRITES argument, simplify appropriately.
847 (note_mem_written): Similarly for WRITE_PTR argument.
848 (invalidate_from_clobbers): Similarly for W argument.
849 (invalidate_for_call): Remove memory elements from the hash table.
850 (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
851 (cse_rtx_varies_p): New function. Derived from old
852 cse_rtx_addr_varies_p.
853 (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
854 Don't call note_mem_written anymore. Stack pushes invalidate the stack
855 pointer if PUSH_ROUNDING is defined. No longer need to call
856 cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
857 (skipped_writes_memory): Remove variable.
858 (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
859 (invalidate_skipped_block): Simplify for new alias analysis code.
860 (cse_set_around_loop): Likewise.
861 (cse_main): Call init_alias_analysis.
862 * flags.h (flag_alias_check, flag_argument_noalias): Declare.
863 * toplev.c (flag_alias_check, flag_argument_noalias): Define.
864 (f_options): Add new alias checking arguments.
865 (main): Set flag_alias_check when optimizing.
866 * local_alloc (validate_equiv_mem_from_store): Add new arguments
868 (memref_referenced_p): Likewise.
869 * loop.c (NUM_STORES): Increase to 30.
870 (prescan_loop): Only non-constant calls set unknown_address_altered.
871 (invariant_p): Add new arguments to true_dependence.
872 (record_giv): Initialize unrolled and shared fields.
873 (emit_iv_add_mult): Call record_base_value as needed.
874 * loop.h (struct induction): Add unrolled and shared fields.
875 * unroll.c (unroll_loop): Call record_base_value as needed.
876 (copy_loop_body): Likewise.
877 (final_biv_value): Likewise.
878 (final_giv_value): Likewise.
879 (find_splittable_regs): Likewise. Only create one new pseudo
880 if we have multiple address GIVs that were combined with the same
881 dst_reg GIV. Note when a new register is created due to unrolling.
882 * rtl.c (reg_note_name): Add REG_NOALIAS.
883 * rtl.h (enum reg_note): Similarly.
884 (rtx_varies_p, may_trap_p, side_effects_p): Declare.
885 (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
886 (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
887 (true_dependence, read_dependence, anti_dependence): Likewise.
888 (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
889 (mark_user_reg, mark_reg_pointer): Likewise.
892 * Integrate reload bugfix from Wilon which enables the PA port
894 * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
895 OPERAND_ADDRESS when computing how many registers an insn needs.
896 (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
898 (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
900 (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
901 in reload_reg_use_in_op_addr do not reach the end.
902 do not reach the end.
903 (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
904 RELOAD_FOR_OPERAND_ADDRESS.
906 Sun Aug 10 12:00:20 1997 Jeffrey A Law (law@cygnus.com)
908 * egcs project officially starts.