gcc/ChangeLog

   1 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
   2
   3         * toplev.c (rest_of_compilation): For passes starting with
   4         flow_analysis, use print_rtl_with_bb instead of print_rtl.
   5
   6         * print-rtl.c (print_rtl_single): Print a single rtl value to a
   7         file.
   8
   9         * flow.c (print_rtl_with_bb): Print which insns start and end
  10         basic blocks.  For the start of a basic block, also print the live
  11         information.
  12
  13 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
  14
  15         * toplev.c (main): Change #elif to #else/#ifdef
  16
  17         * tlink.c: Include ctype.h.
  18         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
  19
  20 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
  21
  22         * bitmap.c: Conditionally include stdlib.h.
  23         (free): Provide a declaration if NEED_DECLARATION_FREE.
  24
  25 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
  26
  27         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
  28
  29 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
  30
  31         * profile.c (output_arc_profiler): Verify next_insert_after is an
  32         INSN before and after skipping a stack pop.
  33
  34 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
  35
  36         * final.c (shorten_branches): Don't count the lengths of deleted
  37         instructions.
  38
  39 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
  40
  41         * version.c: Bump for snapshot.
  42
  43 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
  44
  45         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
  46         two bitmaps ANDed together.
  47         (bitmap_print): Declare.
  48
  49         * bitmap.c (function_obstack): Don't declare any more.
  50         (bitmap_obstack): Obstack for allocating links from.
  51         (bitmap_obstack_init): New static to say whether to initialize
  52         bitmap_obstack.
  53         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
  54         (bitmap_release_memory): Free all memory allocated from
  55         bitmap_obstack.
  56
  57         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
  58         EXECUTE_IF_AND_IN_BITMAP.
  59
  60 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
  61
  62         * alias.c (true_dependence): Address with AND can alias scalars.
  63         (anti_dependence, output_dependence): Likewise.
  64
  65         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
  66
  67 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
  68
  69         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
  70           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
  71           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
  72           definitions.  Use -qrtems instead of -mrtems.
  73
  74 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
  75
  76         * xm-sco5.h (sys_siglist): Define.
  77         (SYS_SIGLIST_DECLARED): Likewise.
  78
  79 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
  80
  81         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
  82
  83 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
  84
  85         * except.c (eh_outer_context): Expand masking operation using
  86         expand_binop.
  87
  88 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
  89
  90         * alpha.md (floatdisf2-1): New pattern.
  91
  92 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
  93
  94         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
  95         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
  96         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
  97         * gcc.texi: Note that if you define sys_siglist that you should
  98         also define SYS_SIGLIST_DECLARED.
  99
 100         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 101         are relative to the next instruction, not the current instruction.
 102
 103 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 104
 105         * local-alloc.c (contains_replace_regs): New function.
 106         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 107         verify that there is no existing REG_EQUIV note, and add a call to
 108         contains_place_regs.
 109
 110 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 111
 112         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 113         (STARTFILE_SPEC): Always use crtbegin.o%s
 114         (ENDFILE_SPEC): Always use crtend.o%s.
 115
 116 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 117
 118         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 119         is passed in.
 120         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 121         SFmode for 64 bit hosts.
 122
 123 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 124
 125         * fixincludes: Permits spaces between # and define.  Discard C++
 126         comments in sys/pci.h on HP/UX 10.20.
 127
 128 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 129
 130         * version.c: Bump for snapshot.
 131
 132         * pa.c (restore_unscaled_index_insn_codes): New function.
 133         (record_unscaled_index_insn_codes): Likewise.
 134         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 135         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 136         (pa_reorg): Call record_unscaled_index_insn_codes.
 137
 138         * haifa-sched.c (move_insn): Handle notes correctly for insns
 139         with SCHED_GROUP_P set.
 140
 141 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 142
 143         * alpha/xm-linux.h (USE_BFD): Undef before define.
 144
 145 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 146
 147         * cse.c (cse_insn): Don't record BLKmode values.
 148
 149 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 150
 151         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 152
 153 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 154
 155         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 156         * collect2.c (sys_errlist): Likewise.
 157         * cpplib.c (sys_errlist): Likewise.
 158         * gcc.c (sys_errlist): Likewise.
 159         * protoize (sys_errlist): Likewise.
 160         * configure.in: Check for strerror.
 161         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 162         * xm-gnu.h (HAVE_STRERROR): Likewise.
 163         * xm-linux.h (HAVE_STRERROR): Likewise.
 164         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 165         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 166         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 167         * xm-dos.h (HAVE_STRERROR): Likewise.
 168         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 169         * xm-pa.h (HAVE_STRERROR): Likewise.
 170         * xm-papro.h (HAVE_STRERROR): Likewise.
 171         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 172         * configure, config.in: Rebuilt.
 173
 174         * Makefile.in: Add several missing "else true" clauses.
 175
 176         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 177         * mips-tfile.c: Likewise.
 178         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 179         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 180         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 181         * configure.in: Check for sys_siglist declaration.
 182         * configure, config.in: Rebuilt.
 183
 184 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 185
 186         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 187         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 188         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 189         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 190         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 191         macro EXTRA_SUBTARGET_SWITCHES.
 192         * configure.in (sh*-*-rtems*): New target.
 193         * sh/rtems.h: New file.
 194         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 195         * configure: Rebuilt.
 196
 197 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 198
 199         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 200
 201 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 202
 203         * rs6000.md: Make DF fused-add operations pay attention to
 204         -mno-fused-add.
 205
 206 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 207
 208         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 209
 210 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 211
 212         * pa.md (reload_peepholes): Make sure operand is a REG before
 213         examining REGNO.  Allow general registers too.
 214
 215 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 216
 217         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 218
 219 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 220
 221         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 222         to reallocate abbrev_die_table.
 223
 224 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 225
 226         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 227
 228 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 229
 230         * Makefile.in (config.status): Depend on version.c
 231
 232         * expr.h (insn_gen_function): Reenable prototype.
 233
 234         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 235         first parameter.
 236
 237 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 238
 239         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 240
 241 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 242
 243         * version.c: Bump for latest snapshot.
 244
 245         * bc-optab.c: Conditionally include stdlib.h.
 246         (free): Provide a declaration if NEED_DECLARATION_FREE.
 247         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 248         * rtl.h (free): Remove declaration.
 249         * tree.h (free): Remvoe declaration.
 250
 251         * configure: Rebuilt.
 252
 253 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 254
 255         * flags.h (flag_move_all_movables): Declare.
 256         (flag_reduce_all_givs): Likewise.
 257         * loop.c (move_movables): Handle flag_move_all_movables.
 258         (strength_reduce): Handle flag_reduce_all_givs.
 259         * toplev.c (flag_move_all_movables): Define.
 260         (flag_reduce_all_givs): Likewise.
 261         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 262         * invoke.texi: Document new options, including alias stuff that
 263         wasn't included last time.
 264
 265 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 266
 267         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 268         * t-mn10200: Ditto.
 269         * t-vxsparc: Ditto.
 270         * t-vxworks68: Ditto.
 271         * t-vxworks960: Ditto.
 272         * t-vx29k: Ditto.
 273
 274 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 275
 276         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 277         if not already defined, and USE_C_ALLOCA not defined.
 278
 279 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 280
 281         * config.guess: Replace with script that uses ../config.guess.
 282
 283         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 284         if USE_GNULIBC_1 is not defined.
 285
 286 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 287
 288         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 289         * config.guess: Recognize alpha-linux-gnulibc1.
 290         * configure.in (alpha-*-linux-gnulibc1): New target.
 291         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 292
 293 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 294
 295         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 296         last change.
 297
 298 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 299
 300         * loop.c (combine_movables): Earlier insns don't match later ones.
 301
 302 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 303
 304         * config/linux.h (CC1_SPEC): Define it only if not defined.
 305
 306         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 307         <linux.h>
 308
 309         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 310         USE_GNULIBC_1 is not defined.
 311
 312         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 313
 314         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 315         as 1 if USE_GNULIBC_1 is not defined.
 316
 317 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 318
 319         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 320         to be something other than a REG.
 321         * function.c (expand_function_end): Fix current_function_return_rtx
 322         if it was a pseudo.
 323
 324         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 325         * x-netbsd: Likewise
 326         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 327         (INSTALL_HEADERS): Delete.
 328         * x-dguxbcs: Likewise.
 329         * x-hp3bsd44: Likewise
 330         * x-pa: Likewise.
 331
 332 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 333
 334         * i386.md (pop): pop increments the stack pointer.
 335         (prologue_set_stack_ptr): New pattern.
 336         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 337         instead of subsi3.
 338
 339 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 340
 341         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 342         address where an offsettable address is required.
 343
 344 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 345
 346         * loop.c (check_final_value): Don't miss a biv increment in a
 347         parallel.
 348
 349 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 350
 351         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 352         TYPE_DECL_IS_STUB instead of DECL_NAME.
 353
 354 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 355
 356         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 357
 358 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 359
 360         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 361
 362 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 363
 364         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 365         (find_post_sched_live): Likewise.
 366
 367         * haifa-sched.c (schedule_block): Remove old code to get arguments
 368         from hard regs into pseudos early.
 369
 370 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 371
 372         * version.c: Bump for new snapshot.
 373
 374         * local-alloc.c (update_equiv_regs): All the target to reject
 375         promotion of some REG_EQUAL to REG_EQUIV notes.
 376         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 377
 378         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 379         secondary reloads.
 380
 381         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 382         store of the argument registers.
 383
 384 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 385
 386         * fold-const.c (multiple_of_p): New function.
 387         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 388
 389 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 390
 391         * expr.h (insn_gen_function): Temporarily remove prototype.
 392
 393 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 394
 395         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 396         filenames.  Use sed to extract base filename for install.
 397
 398 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 399
 400         * unroll.c (find_splittable_givs): Only share if two givs have the
 401         same add and multiply values.
 402
 403 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 404
 405         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 406         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 407
 408 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 409
 410         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 411         around branch tables.
 412         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 413         and .end_brtab directives if TARGET_GAS.
 414
 415 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 416
 417         * alias.c (true_dependence): Pass x_addr not x to varies.
 418
 419         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 420         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 421         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 422         declarations.
 423         * config.in, configure: Regenerate.
 424
 425 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 426
 427         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 428         LO_SUM.
 429         (record_set): Handle LO_SUM like PLUS.
 430         (init_alias_analysis): When following chains of base addresses,
 431         do not stop on reaching a hard register.
 432
 433 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 434
 435         * version.c: Bump for new snapshot.
 436
 437 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 438
 439         * alpha.h (ARCH_ASM_FILE_START): Define.
 440         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 441         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 442
 443 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 444
 445         * Makefile.in (install-common): Put gcov comment at start of line.
 446
 447 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 448
 449         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 450         array, simplify entries for hard registers too.
 451
 452 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 453
 454         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 455         list.
 456
 457 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 458
 459         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 460         block_stack before dereferencing it.
 461
 462 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 463
 464         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 465
 466 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 467
 468         * cplus-dem.c: Add 'extern' to prepends_underscore.
 469
 470 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 471
 472         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 473         (get_issue_rate): Delete.
 474         * pa.h (ISSUE_RATE): Define.
 475
 476         * configure.in: Turn on haifa by default for the PA.
 477         * configure: Rebuilt.
 478         * pa.c (override_options): Accept -mschedule=7200 option.
 479         (pa_adjust_cost): No longer need to scale costs for newer
 480         processors.
 481         * pa.h (enum processor_type): Add PROCESSOR_7200.
 482         * pa.md: Revamp scheduling parameters to work better with
 483         haifa.  Add scheduling parameters for the 7200.
 484
 485         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
 486         insns too.
 487         (schedule_block): When adjusting basic_block_{head,end}, account
 488         for movement of SCHED_GROUP_P insns too.
 489
 490         * haifa-sched.c (debug_dependencies): Fix thinko.
 491
 492         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
 493         (site.exp, check, check-g++, check-gcc): New targets.
 494
 495         * haifa-sched.c: Make lots of variables static.
 496
 497 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 498
 499         * expr.h, real.h: Finish prototyping.
 500
 501 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
 502
 503         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
 504         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
 505         * reload1.c: Undo bugfix from Aug 11.
 506
 507 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
 508
 509         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
 510         quotes around the name.
 511         * configure: Regenerate.
 512
 513 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
 514
 515         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
 516
 517 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 518
 519         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
 520         to sub-makes to avoid building more passes than the user might have
 521         requested on the command line.
 522
 523 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
 524
 525         * configure.in: Expurgate `broken_install' (install is
 526         autoconfed).
 527
 528         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
 529         relevant).
 530
 531 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
 532
 533         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
 534         functions and declarations.
 535         (analyze_loop_iterations): Use condjump_p.
 536         (insert_bct): Likewise.  Use exact_log2.
 537
 538 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
 539
 540         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
 541         (schedule_region): Likewise.
 542         (schedule_insns): Likewise.
 543
 544         * PROJECTS: Update with Haifa stuff.
 545
 546 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
 547
 548         * version.c: Change the version string to look like:
 549         egcs-2.90.00 970814 (gcc2-970802 experimental).
 550
 551         * loop.c (is_conditional_branch): Make definition match declaration.
 552
 553         * gcc.c: Take out experimental snapshot warning message.
 554
 555 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
 556
 557         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
 558         print out the names of the notes.  Print out the name of the insn
 559         that is not a note, and not an {,CALL_,JUMP_}INSN.
 560
 561 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
 562
 563         * configure.in (haifa configury): Fix typo.
 564         * configure: Regenerate.
 565
 566 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
 567
 568         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
 569
 570         * gcc.info*: Rebuilt.
 571
 572         * COPYING.g77, README.g77: New files.
 573         * real.c (ereal_unto_float, ereal_unto_double): New functions.
 574         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
 575         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
 576
 577 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
 578
 579         * Integrate Haifa instruction scheduler.
 580         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
 581         to sched with $(SCHED_CFLAGS.
 582         * configure.in: Handle --enable-haifa.
 583         * configure: Rebuilt.
 584         * flags.h: Add new flags for haifa instruction scheduler.
 585         * genattrtab.c (expand_units): For haifa, don't subtract one
 586         when computing blockage.
 587         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
 588         (flag_schedule_speculative): Ditto.
 589         (flag_schedule_speculative_load): Ditto.
 590         (flag_schedule_speculative_load_dangerous): Ditto.
 591         (flag_schedule_reverse_before_reload): Ditto.
 592         (flag_schedule_reverse_after_reload): Ditto.
 593         (flag_branch_on_count_reg): Ditto.
 594         (f_options): Add Haifa switches.
 595         (main): Turn off some Haifa options if appropriate macro is
 596         defined.  Process Haifa switches.
 597         * unroll.c (iteration_info): No longer static, since Haifa
 598         scheduler uses it.
 599         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
 600         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
 601         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
 602         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
 603         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
 604         storage for the Haifa scheduler.
 605         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
 606         LABEL_NEXTREF.
 607         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
 608         are defined, call analyze_loop_iterations and insert_bct to use
 609         countdown loops.
 610         (record_giv): Refine test for jumps out of loops if HAIFA is
 611         defined.
 612         (analyze_loop_iterations): New function to identify if we can use
 613         a countdown loop.
 614         (insert_bct): Insert countdown loop.
 615         (instrument_loop_bct): Low level code to insert countdown loop.
 616         (loop_number): Calculate UID of loop.
 617         (indirect_jump_in_function_p): Return true if an indirect jump is
 618         in the function.
 619         (is_power_of_2): Return true if value is a power of 2.
 620         (is_conditional_branch): Return true if insn is a conditional
 621         jump.
 622         (fix_bct_param): Process -fbct-{min,max}-N switches.
 623         (check_bct_param): Return true if loop should be instrumented.
 624         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
 625         (loop_optimize): Initialize.
 626         (get_condition_for_loop): Ditto.
 627         * loop.c (strength_reduce): Inside of code that uses #ifdef
 628         HAVE_decrement_and_branch_on_count code, test it to make sure the
 629         condition is true.
 630         (instrument_loop_bct): Ditto.
 631         * haifa-sched.c: New file.
 632
 633
 634         * Integrate regmove pass.
 635         * Makefile.in (OBJS): Add regmove.o
 636         (regmove.o): Add dependencies.
 637         * flow.c (find_use_as_address): No longer static.
 638         * rtl.h (find_use_as_address): Declare.
 639         * toplev.c (regmove_dump, flag_regmove): Define.
 640         (f_options): Add -fregmove.
 641         (regmove_dump_file, regmove_time): Define.
 642         (fatal_insn): Close the regmove dump file.
 643         (compile_file): Initialize regmove_time; open/close the regmove dump
 644         file as needed.  Print regmove time as needed.
 645         (rest_of_compilation): Run regmove pass if requested, dump
 646         RTL after regmove if requested.
 647         (main): If -O2 or more, turn on regmove.  Handle dump switches.
 648         * regmove.c: New file.
 649
 650 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
 651
 652         * Integrate tlink patch from jason@cygnus.com
 653         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
 654         (process_command): Increment n_switches for them.  Don't discard
 655         their args.  Validate them.
 656         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
 657         From Rohan Lenard.
 658         (process_command): Set include_prefixes from COMPILER_PATH.
 659         (main): Set COLLECT_GCC_OPTIONS sooner.
 660         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
 661         * tlink.c, hash.c, hash.h: New files.
 662         * Makefile.in (USE_COLLECT2): Always use collect2.
 663         (collect2): Depend on and link in hash.o and tlink.o.
 664         (tlink.o, hash.o): Add dependencies.
 665
 666 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
 667
 668         * Integrate alias analysis changes from jfc@mit.edu
 669         * Makefile.in (OBJS): Add alias.o
 670         (alias.o): Add dependencies.
 671         * alias.c: New file.
 672         * sched.c: Remove alias analysis code.  It lives in alias.c now.
 673         (sched_analyze_2): Add new arguments to true_dependence.
 674         (schedule_insns): Always call init_alias_analysis.
 675         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
 676         mark return value from such functions as a pointer and keep track of
 677         them for alias analysis.  If a return value from a function is a
 678         pointer, mark it as such.
 679         * combine.c (distribute_notes): Handle REG_NOALIAS.
 680         * cse.c (struct write_data): Delete.  No longer needed.
 681         (invalidate): Don't call set_nonvarying_address_components anymore.
 682         Use true_dependence to decide if an entry should be removed from
 683         the hash table.
 684         (invalidate_memory): Remove WRITES argument, simplify appropriately.
 685         Fix all callers.
 686         (note_mem_written): Similarly for WRITE_PTR argument.
 687         (invalidate_from_clobbers): Similarly for W argument.
 688         (invalidate_for_call): Remove memory elements from the hash table.
 689         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
 690         (cse_rtx_varies_p): New function.  Derived from old
 691         cse_rtx_addr_varies_p.
 692         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
 693         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
 694         pointer if PUSH_ROUNDING is defined.  No longer need to call
 695         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
 696         (skipped_writes_memory): Remove variable.
 697         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
 698         (invalidate_skipped_block): Simplify for new alias analysis code.
 699         (cse_set_around_loop): Likewise.
 700         (cse_main): Call init_alias_analysis.
 701         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
 702         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
 703         (f_options): Add new alias checking arguments.
 704         (main): Set flag_alias_check when optimizing.
 705         * local_alloc (validate_equiv_mem_from_store): Add new arguments
 706         to true_dependence.
 707         (memref_referenced_p): Likewise.
 708         * loop.c (NUM_STORES): Increase to 30.
 709         (prescan_loop): Only non-constant calls set unknown_address_altered.
 710         (invariant_p): Add new arguments to true_dependence.
 711         (record_giv): Initialize unrolled and shared fields.
 712         (emit_iv_add_mult): Call record_base_value as needed.
 713         * loop.h (struct induction): Add unrolled and shared fields.
 714         * unroll.c  (unroll_loop): Call record_base_value as needed.
 715         (copy_loop_body): Likewise.
 716         (final_biv_value): Likewise.
 717         (final_giv_value): Likewise.
 718         (find_splittable_regs): Likewise.  Only create one new pseudo
 719         if we have multiple address GIVs that were combined with the same
 720         dst_reg GIV.  Note when a new register is created due to unrolling.
 721         * rtl.c (reg_note_name): Add REG_NOALIAS.
 722         * rtl.h (enum reg_note): Similarly.
 723         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
 724         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
 725         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
 726         (true_dependence, read_dependence, anti_dependence): Likewise.
 727         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
 728         (mark_user_reg, mark_reg_pointer): Likewise.
 729
 730
 731         * Integrate reload bugfix from Wilon which enables the PA port
 732         to bootstrap again.
 733         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
 734         OPERAND_ADDRESS when computing how many registers an insn needs.
 735         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
 736         conflict.
 737         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
 738         OPADDR_ADDR reload.
 739         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
 740         in reload_reg_use_in_op_addr do not reach the end.
 741         do not reach the end.
 742         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
 743         RELOAD_FOR_OPERAND_ADDRESS.
 744
 745 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
 746
 747         * egcs project officially starts.
 748