gcc/ChangeLog

   1 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
   2
   3         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
   4         as initial value for real_label_map.
   5         (copy_for_inline): Likewise.
   6
   7 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
   8
   9         * sched.c (update_flow_info) When looking if to set found_split_dest
  10         or found_orig_dest, look at all parts of a PARALLEL.
  11         * haifa-sched.c (update_flow_info): Likewise.
  12
  13 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
  14
  15         * v850: New directory for v850 port.
  16         * v850/lib1funcs.asm: New file.
  17         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
  18         * ginclude/va-v850.h: New file.
  19         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
  20         * configure.in (mn10200-*-*): New target.
  21         * configure: Rebuilt.
  22         * config.sub: Handle v850-elf.
  23         * Makefile.in (USER_H): Add va-mn10200.h.
  24         * invoke.texi: Document v850 stuff.
  25
  26 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
  27
  28         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
  29         has integer TYPE_{MAX,MIN}_VALUE before using them.
  30
  31         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
  32         __HPUX_ASM__ versions.
  33
  34 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
  35
  36         * install.sh: Delete duplicate install script.
  37
  38 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
  39
  40         * reg-stack.c (subst_stack_regs): Pop the stack register for a
  41         computed goto which sets the same stack register.
  42
  43         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
  44         destination are both on the regstack.
  45         (subst_stack_regs_pat): Put the destination at the top of the regstack.
  46
  47 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
  48
  49         * mips.md (nonlocal_goto_receiver): Define.
  50
  51         * profile.c (output_arc_profiler): Check next_insert_after for non
  52         NULL before deferencing it.
  53
  54         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
  55
  56 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
  57
  58         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
  59
  60 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
  61
  62         * toplev.c (rest_of_compilation): For passes starting with
  63         flow_analysis, use print_rtl_with_bb instead of print_rtl.
  64
  65         * print-rtl.c (print_rtl_single): Print a single rtl value to a
  66         file.
  67
  68         * flow.c (print_rtl_with_bb): Print which insns start and end
  69         basic blocks.  For the start of a basic block, also print the live
  70         information.
  71
  72 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
  73
  74         * toplev.c (main): Change #elif to #else/#ifdef
  75
  76         * tlink.c: Include ctype.h.
  77         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
  78
  79 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
  80
  81         * bitmap.c: Conditionally include stdlib.h.
  82         (free): Provide a declaration if NEED_DECLARATION_FREE.
  83
  84 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
  85
  86         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
  87
  88 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
  89
  90         * profile.c (output_arc_profiler): Verify next_insert_after is an
  91         INSN before and after skipping a stack pop.
  92
  93 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
  94
  95         * final.c (shorten_branches): Don't count the lengths of deleted
  96         instructions.
  97
  98 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
  99
 100         * version.c: Bump for snapshot.
 101
 102 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 103
 104         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 105         two bitmaps ANDed together.
 106         (bitmap_print): Declare.
 107
 108         * bitmap.c (function_obstack): Don't declare any more.
 109         (bitmap_obstack): Obstack for allocating links from.
 110         (bitmap_obstack_init): New static to say whether to initialize
 111         bitmap_obstack.
 112         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 113         (bitmap_release_memory): Free all memory allocated from
 114         bitmap_obstack.
 115
 116         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 117         EXECUTE_IF_AND_IN_BITMAP.
 118
 119 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 120
 121         * alias.c (true_dependence): Address with AND can alias scalars.
 122         (anti_dependence, output_dependence): Likewise.
 123
 124         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 125
 126 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 127
 128         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 129           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 130           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 131           definitions.  Use -qrtems instead of -mrtems.
 132
 133 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 134
 135         * xm-sco5.h (sys_siglist): Define.
 136         (SYS_SIGLIST_DECLARED): Likewise.
 137
 138 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 139
 140         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 141
 142 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 143
 144         * except.c (eh_outer_context): Expand masking operation using
 145         expand_binop.
 146
 147 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 148
 149         * alpha.md (floatdisf2-1): New pattern.
 150
 151 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 152
 153         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 154         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 155         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 156         * gcc.texi: Note that if you define sys_siglist that you should
 157         also define SYS_SIGLIST_DECLARED.
 158
 159         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 160         are relative to the next instruction, not the current instruction.
 161
 162 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 163
 164         * local-alloc.c (contains_replace_regs): New function.
 165         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 166         verify that there is no existing REG_EQUIV note, and add a call to
 167         contains_place_regs.
 168
 169 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 170
 171         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 172         (STARTFILE_SPEC): Always use crtbegin.o%s
 173         (ENDFILE_SPEC): Always use crtend.o%s.
 174
 175 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 176
 177         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 178         is passed in.
 179         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 180         SFmode for 64 bit hosts.
 181
 182 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 183
 184         * fixincludes: Permits spaces between # and define.  Discard C++
 185         comments in sys/pci.h on HP/UX 10.20.
 186
 187 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 188
 189         * version.c: Bump for snapshot.
 190
 191         * pa.c (restore_unscaled_index_insn_codes): New function.
 192         (record_unscaled_index_insn_codes): Likewise.
 193         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 194         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 195         (pa_reorg): Call record_unscaled_index_insn_codes.
 196
 197         * haifa-sched.c (move_insn): Handle notes correctly for insns
 198         with SCHED_GROUP_P set.
 199
 200 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 201
 202         * alpha/xm-linux.h (USE_BFD): Undef before define.
 203
 204 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 205
 206         * cse.c (cse_insn): Don't record BLKmode values.
 207
 208 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 209
 210         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 211
 212 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 213
 214         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 215         * collect2.c (sys_errlist): Likewise.
 216         * cpplib.c (sys_errlist): Likewise.
 217         * gcc.c (sys_errlist): Likewise.
 218         * protoize (sys_errlist): Likewise.
 219         * configure.in: Check for strerror.
 220         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 221         * xm-gnu.h (HAVE_STRERROR): Likewise.
 222         * xm-linux.h (HAVE_STRERROR): Likewise.
 223         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 224         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 225         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 226         * xm-dos.h (HAVE_STRERROR): Likewise.
 227         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 228         * xm-pa.h (HAVE_STRERROR): Likewise.
 229         * xm-papro.h (HAVE_STRERROR): Likewise.
 230         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 231         * configure, config.in: Rebuilt.
 232
 233         * Makefile.in: Add several missing "else true" clauses.
 234
 235         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 236         * mips-tfile.c: Likewise.
 237         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 238         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 239         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 240         * configure.in: Check for sys_siglist declaration.
 241         * configure, config.in: Rebuilt.
 242
 243 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 244
 245         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 246         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 247         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 248         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 249         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 250         macro EXTRA_SUBTARGET_SWITCHES.
 251         * configure.in (sh*-*-rtems*): New target.
 252         * sh/rtems.h: New file.
 253         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 254         * configure: Rebuilt.
 255
 256 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 257
 258         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 259
 260 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 261
 262         * rs6000.md: Make DF fused-add operations pay attention to
 263         -mno-fused-add.
 264
 265 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 266
 267         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 268
 269 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 270
 271         * pa.md (reload_peepholes): Make sure operand is a REG before
 272         examining REGNO.  Allow general registers too.
 273
 274 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 275
 276         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 277
 278 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 279
 280         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 281         to reallocate abbrev_die_table.
 282
 283 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 284
 285         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 286
 287 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 288
 289         * Makefile.in (config.status): Depend on version.c
 290
 291         * expr.h (insn_gen_function): Reenable prototype.
 292
 293         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 294         first parameter.
 295
 296 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 297
 298         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 299
 300 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 301
 302         * version.c: Bump for latest snapshot.
 303
 304         * bc-optab.c: Conditionally include stdlib.h.
 305         (free): Provide a declaration if NEED_DECLARATION_FREE.
 306         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 307         * rtl.h (free): Remove declaration.
 308         * tree.h (free): Remvoe declaration.
 309
 310         * configure: Rebuilt.
 311
 312 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 313
 314         * flags.h (flag_move_all_movables): Declare.
 315         (flag_reduce_all_givs): Likewise.
 316         * loop.c (move_movables): Handle flag_move_all_movables.
 317         (strength_reduce): Handle flag_reduce_all_givs.
 318         * toplev.c (flag_move_all_movables): Define.
 319         (flag_reduce_all_givs): Likewise.
 320         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 321         * invoke.texi: Document new options, including alias stuff that
 322         wasn't included last time.
 323
 324 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 325
 326         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 327         * t-mn10200: Ditto.
 328         * t-vxsparc: Ditto.
 329         * t-vxworks68: Ditto.
 330         * t-vxworks960: Ditto.
 331         * t-vx29k: Ditto.
 332
 333 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 334
 335         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 336         if not already defined, and USE_C_ALLOCA not defined.
 337
 338 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 339
 340         * config.guess: Replace with script that uses ../config.guess.
 341
 342         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 343         if USE_GNULIBC_1 is not defined.
 344
 345 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 346
 347         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 348         * config.guess: Recognize alpha-linux-gnulibc1.
 349         * configure.in (alpha-*-linux-gnulibc1): New target.
 350         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 351
 352 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 353
 354         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 355         last change.
 356
 357 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 358
 359         * loop.c (combine_movables): Earlier insns don't match later ones.
 360
 361 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 362
 363         * config/linux.h (CC1_SPEC): Define it only if not defined.
 364
 365         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 366         <linux.h>
 367
 368         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 369         USE_GNULIBC_1 is not defined.
 370
 371         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 372
 373         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 374         as 1 if USE_GNULIBC_1 is not defined.
 375
 376 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 377
 378         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 379         to be something other than a REG.
 380         * function.c (expand_function_end): Fix current_function_return_rtx
 381         if it was a pseudo.
 382
 383         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 384         * x-netbsd: Likewise
 385         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 386         (INSTALL_HEADERS): Delete.
 387         * x-dguxbcs: Likewise.
 388         * x-hp3bsd44: Likewise
 389         * x-pa: Likewise.
 390
 391 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 392
 393         * i386.md (pop): pop increments the stack pointer.
 394         (prologue_set_stack_ptr): New pattern.
 395         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 396         instead of subsi3.
 397
 398 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 399
 400         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 401         address where an offsettable address is required.
 402
 403 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 404
 405         * loop.c (check_final_value): Don't miss a biv increment in a
 406         parallel.
 407
 408 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 409
 410         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 411         TYPE_DECL_IS_STUB instead of DECL_NAME.
 412
 413 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 414
 415         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 416
 417 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 418
 419         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 420
 421 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 422
 423         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 424         (find_post_sched_live): Likewise.
 425
 426         * haifa-sched.c (schedule_block): Remove old code to get arguments
 427         from hard regs into pseudos early.
 428
 429 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 430
 431         * version.c: Bump for new snapshot.
 432
 433         * local-alloc.c (update_equiv_regs): All the target to reject
 434         promotion of some REG_EQUAL to REG_EQUIV notes.
 435         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 436
 437         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 438         secondary reloads.
 439
 440         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 441         store of the argument registers.
 442
 443 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 444
 445         * fold-const.c (multiple_of_p): New function.
 446         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 447
 448 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 449
 450         * expr.h (insn_gen_function): Temporarily remove prototype.
 451
 452 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 453
 454         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 455         filenames.  Use sed to extract base filename for install.
 456
 457 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 458
 459         * unroll.c (find_splittable_givs): Only share if two givs have the
 460         same add and multiply values.
 461
 462 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 463
 464         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 465         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 466
 467 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 468
 469         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 470         around branch tables.
 471         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 472         and .end_brtab directives if TARGET_GAS.
 473
 474 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 475
 476         * alias.c (true_dependence): Pass x_addr not x to varies.
 477
 478         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 479         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 480         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 481         declarations.
 482         * config.in, configure: Regenerate.
 483
 484 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 485
 486         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 487         LO_SUM.
 488         (record_set): Handle LO_SUM like PLUS.
 489         (init_alias_analysis): When following chains of base addresses,
 490         do not stop on reaching a hard register.
 491
 492 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 493
 494         * version.c: Bump for new snapshot.
 495
 496 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 497
 498         * alpha.h (ARCH_ASM_FILE_START): Define.
 499         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 500         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 501
 502 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 503
 504         * Makefile.in (install-common): Put gcov comment at start of line.
 505
 506 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 507
 508         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 509         array, simplify entries for hard registers too.
 510
 511 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 512
 513         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 514         list.
 515
 516 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 517
 518         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 519         block_stack before dereferencing it.
 520
 521 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 522
 523         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 524
 525 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 526
 527         * cplus-dem.c: Add 'extern' to prepends_underscore.
 528
 529 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 530
 531         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 532         (get_issue_rate): Delete.
 533         * pa.h (ISSUE_RATE): Define.
 534
 535         * configure.in: Turn on haifa by default for the PA.
 536         * configure: Rebuilt.
 537         * pa.c (override_options): Accept -mschedule=7200 option.
 538         (pa_adjust_cost): No longer need to scale costs for newer
 539         processors.
 540         * pa.h (enum processor_type): Add PROCESSOR_7200.
 541         * pa.md: Revamp scheduling parameters to work better with
 542         haifa.  Add scheduling parameters for the 7200.
 543
 544         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
 545         insns too.
 546         (schedule_block): When adjusting basic_block_{head,end}, account
 547         for movement of SCHED_GROUP_P insns too.
 548
 549         * haifa-sched.c (debug_dependencies): Fix thinko.
 550
 551         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
 552         (site.exp, check, check-g++, check-gcc): New targets.
 553
 554         * haifa-sched.c: Make lots of variables static.
 555
 556 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 557
 558         * expr.h, real.h: Finish prototyping.
 559
 560 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
 561
 562         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
 563         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
 564         * reload1.c: Undo bugfix from Aug 11.
 565
 566 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
 567
 568         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
 569         quotes around the name.
 570         * configure: Regenerate.
 571
 572 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
 573
 574         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
 575
 576 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 577
 578         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
 579         to sub-makes to avoid building more passes than the user might have
 580         requested on the command line.
 581
 582 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
 583
 584         * configure.in: Expurgate `broken_install' (install is
 585         autoconfed).
 586
 587         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
 588         relevant).
 589
 590 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
 591
 592         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
 593         functions and declarations.
 594         (analyze_loop_iterations): Use condjump_p.
 595         (insert_bct): Likewise.  Use exact_log2.
 596
 597 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
 598
 599         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
 600         (schedule_region): Likewise.
 601         (schedule_insns): Likewise.
 602
 603         * PROJECTS: Update with Haifa stuff.
 604
 605 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
 606
 607         * version.c: Change the version string to look like:
 608         egcs-2.90.00 970814 (gcc2-970802 experimental).
 609
 610         * loop.c (is_conditional_branch): Make definition match declaration.
 611
 612         * gcc.c: Take out experimental snapshot warning message.
 613
 614 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
 615
 616         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
 617         print out the names of the notes.  Print out the name of the insn
 618         that is not a note, and not an {,CALL_,JUMP_}INSN.
 619
 620 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
 621
 622         * configure.in (haifa configury): Fix typo.
 623         * configure: Regenerate.
 624
 625 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
 626
 627         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
 628
 629         * gcc.info*: Rebuilt.
 630
 631         * COPYING.g77, README.g77: New files.
 632         * real.c (ereal_unto_float, ereal_unto_double): New functions.
 633         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
 634         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
 635
 636 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
 637
 638         * Integrate Haifa instruction scheduler.
 639         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
 640         to sched with $(SCHED_CFLAGS.
 641         * configure.in: Handle --enable-haifa.
 642         * configure: Rebuilt.
 643         * flags.h: Add new flags for haifa instruction scheduler.
 644         * genattrtab.c (expand_units): For haifa, don't subtract one
 645         when computing blockage.
 646         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
 647         (flag_schedule_speculative): Ditto.
 648         (flag_schedule_speculative_load): Ditto.
 649         (flag_schedule_speculative_load_dangerous): Ditto.
 650         (flag_schedule_reverse_before_reload): Ditto.
 651         (flag_schedule_reverse_after_reload): Ditto.
 652         (flag_branch_on_count_reg): Ditto.
 653         (f_options): Add Haifa switches.
 654         (main): Turn off some Haifa options if appropriate macro is
 655         defined.  Process Haifa switches.
 656         * unroll.c (iteration_info): No longer static, since Haifa
 657         scheduler uses it.
 658         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
 659         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
 660         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
 661         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
 662         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
 663         storage for the Haifa scheduler.
 664         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
 665         LABEL_NEXTREF.
 666         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
 667         are defined, call analyze_loop_iterations and insert_bct to use
 668         countdown loops.
 669         (record_giv): Refine test for jumps out of loops if HAIFA is
 670         defined.
 671         (analyze_loop_iterations): New function to identify if we can use
 672         a countdown loop.
 673         (insert_bct): Insert countdown loop.
 674         (instrument_loop_bct): Low level code to insert countdown loop.
 675         (loop_number): Calculate UID of loop.
 676         (indirect_jump_in_function_p): Return true if an indirect jump is
 677         in the function.
 678         (is_power_of_2): Return true if value is a power of 2.
 679         (is_conditional_branch): Return true if insn is a conditional
 680         jump.
 681         (fix_bct_param): Process -fbct-{min,max}-N switches.
 682         (check_bct_param): Return true if loop should be instrumented.
 683         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
 684         (loop_optimize): Initialize.
 685         (get_condition_for_loop): Ditto.
 686         * loop.c (strength_reduce): Inside of code that uses #ifdef
 687         HAVE_decrement_and_branch_on_count code, test it to make sure the
 688         condition is true.
 689         (instrument_loop_bct): Ditto.
 690         * haifa-sched.c: New file.
 691
 692
 693         * Integrate regmove pass.
 694         * Makefile.in (OBJS): Add regmove.o
 695         (regmove.o): Add dependencies.
 696         * flow.c (find_use_as_address): No longer static.
 697         * rtl.h (find_use_as_address): Declare.
 698         * toplev.c (regmove_dump, flag_regmove): Define.
 699         (f_options): Add -fregmove.
 700         (regmove_dump_file, regmove_time): Define.
 701         (fatal_insn): Close the regmove dump file.
 702         (compile_file): Initialize regmove_time; open/close the regmove dump
 703         file as needed.  Print regmove time as needed.
 704         (rest_of_compilation): Run regmove pass if requested, dump
 705         RTL after regmove if requested.
 706         (main): If -O2 or more, turn on regmove.  Handle dump switches.
 707         * regmove.c: New file.
 708
 709 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
 710
 711         * Integrate tlink patch from jason@cygnus.com
 712         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
 713         (process_command): Increment n_switches for them.  Don't discard
 714         their args.  Validate them.
 715         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
 716         From Rohan Lenard.
 717         (process_command): Set include_prefixes from COMPILER_PATH.
 718         (main): Set COLLECT_GCC_OPTIONS sooner.
 719         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
 720         * tlink.c, hash.c, hash.h: New files.
 721         * Makefile.in (USE_COLLECT2): Always use collect2.
 722         (collect2): Depend on and link in hash.o and tlink.o.
 723         (tlink.o, hash.o): Add dependencies.
 724
 725 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
 726
 727         * Integrate alias analysis changes from jfc@mit.edu
 728         * Makefile.in (OBJS): Add alias.o
 729         (alias.o): Add dependencies.
 730         * alias.c: New file.
 731         * sched.c: Remove alias analysis code.  It lives in alias.c now.
 732         (sched_analyze_2): Add new arguments to true_dependence.
 733         (schedule_insns): Always call init_alias_analysis.
 734         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
 735         mark return value from such functions as a pointer and keep track of
 736         them for alias analysis.  If a return value from a function is a
 737         pointer, mark it as such.
 738         * combine.c (distribute_notes): Handle REG_NOALIAS.
 739         * cse.c (struct write_data): Delete.  No longer needed.
 740         (invalidate): Don't call set_nonvarying_address_components anymore.
 741         Use true_dependence to decide if an entry should be removed from
 742         the hash table.
 743         (invalidate_memory): Remove WRITES argument, simplify appropriately.
 744         Fix all callers.
 745         (note_mem_written): Similarly for WRITE_PTR argument.
 746         (invalidate_from_clobbers): Similarly for W argument.
 747         (invalidate_for_call): Remove memory elements from the hash table.
 748         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
 749         (cse_rtx_varies_p): New function.  Derived from old
 750         cse_rtx_addr_varies_p.
 751         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
 752         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
 753         pointer if PUSH_ROUNDING is defined.  No longer need to call
 754         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
 755         (skipped_writes_memory): Remove variable.
 756         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
 757         (invalidate_skipped_block): Simplify for new alias analysis code.
 758         (cse_set_around_loop): Likewise.
 759         (cse_main): Call init_alias_analysis.
 760         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
 761         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
 762         (f_options): Add new alias checking arguments.
 763         (main): Set flag_alias_check when optimizing.
 764         * local_alloc (validate_equiv_mem_from_store): Add new arguments
 765         to true_dependence.
 766         (memref_referenced_p): Likewise.
 767         * loop.c (NUM_STORES): Increase to 30.
 768         (prescan_loop): Only non-constant calls set unknown_address_altered.
 769         (invariant_p): Add new arguments to true_dependence.
 770         (record_giv): Initialize unrolled and shared fields.
 771         (emit_iv_add_mult): Call record_base_value as needed.
 772         * loop.h (struct induction): Add unrolled and shared fields.
 773         * unroll.c  (unroll_loop): Call record_base_value as needed.
 774         (copy_loop_body): Likewise.
 775         (final_biv_value): Likewise.
 776         (final_giv_value): Likewise.
 777         (find_splittable_regs): Likewise.  Only create one new pseudo
 778         if we have multiple address GIVs that were combined with the same
 779         dst_reg GIV.  Note when a new register is created due to unrolling.
 780         * rtl.c (reg_note_name): Add REG_NOALIAS.
 781         * rtl.h (enum reg_note): Similarly.
 782         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
 783         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
 784         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
 785         (true_dependence, read_dependence, anti_dependence): Likewise.
 786         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
 787         (mark_user_reg, mark_reg_pointer): Likewise.
 788
 789
 790         * Integrate reload bugfix from Wilon which enables the PA port
 791         to bootstrap again.
 792         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
 793         OPERAND_ADDRESS when computing how many registers an insn needs.
 794         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
 795         conflict.
 796         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
 797         OPADDR_ADDR reload.
 798         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
 799         in reload_reg_use_in_op_addr do not reach the end.
 800         do not reach the end.
 801         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
 802         RELOAD_FOR_OPERAND_ADDRESS.
 803
 804 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
 805
 806         * egcs project officially starts.
 807