gcc/ChangeLog

   1 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
   2
   3         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
   4
   5 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
   6
   7         * sparc/sparc.md: Add ultrasparc scheduling support.
   8         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
   9
  10 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
  11
  12         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
  13         as initial value for real_label_map.
  14         (copy_for_inline): Likewise.
  15
  16 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
  17
  18         * sched.c (update_flow_info) When looking if to set found_split_dest
  19         or found_orig_dest, look at all parts of a PARALLEL.
  20         * haifa-sched.c (update_flow_info): Likewise.
  21
  22 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
  23
  24         * v850: New directory for v850 port.
  25         * v850/lib1funcs.asm: New file.
  26         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
  27         * ginclude/va-v850.h: New file.
  28         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
  29         * configure.in (mn10200-*-*): New target.
  30         * configure: Rebuilt.
  31         * config.sub: Handle v850-elf.
  32         * Makefile.in (USER_H): Add va-mn10200.h.
  33         * invoke.texi: Document v850 stuff.
  34
  35 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
  36
  37         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
  38         has integer TYPE_{MAX,MIN}_VALUE before using them.
  39
  40         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
  41         __HPUX_ASM__ versions.
  42
  43 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
  44
  45         * install.sh: Delete duplicate install script.
  46
  47 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
  48
  49         * reg-stack.c (subst_stack_regs): Pop the stack register for a
  50         computed goto which sets the same stack register.
  51
  52         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
  53         destination are both on the regstack.
  54         (subst_stack_regs_pat): Put the destination at the top of the regstack.
  55
  56 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
  57
  58         * mips.md (nonlocal_goto_receiver): Define.
  59
  60         * profile.c (output_arc_profiler): Check next_insert_after for non
  61         NULL before deferencing it.
  62
  63         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
  64
  65 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
  66
  67         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
  68
  69 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
  70
  71         * toplev.c (rest_of_compilation): For passes starting with
  72         flow_analysis, use print_rtl_with_bb instead of print_rtl.
  73
  74         * print-rtl.c (print_rtl_single): Print a single rtl value to a
  75         file.
  76
  77         * flow.c (print_rtl_with_bb): Print which insns start and end
  78         basic blocks.  For the start of a basic block, also print the live
  79         information.
  80
  81 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
  82
  83         * toplev.c (main): Change #elif to #else/#ifdef
  84
  85         * tlink.c: Include ctype.h.
  86         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
  87
  88 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
  89
  90         * bitmap.c: Conditionally include stdlib.h.
  91         (free): Provide a declaration if NEED_DECLARATION_FREE.
  92
  93 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
  94
  95         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
  96
  97 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
  98
  99         * profile.c (output_arc_profiler): Verify next_insert_after is an
 100         INSN before and after skipping a stack pop.
 101
 102 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 103
 104         * final.c (shorten_branches): Don't count the lengths of deleted
 105         instructions.
 106
 107 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 108
 109         * version.c: Bump for snapshot.
 110
 111 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 112
 113         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 114         two bitmaps ANDed together.
 115         (bitmap_print): Declare.
 116
 117         * bitmap.c (function_obstack): Don't declare any more.
 118         (bitmap_obstack): Obstack for allocating links from.
 119         (bitmap_obstack_init): New static to say whether to initialize
 120         bitmap_obstack.
 121         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 122         (bitmap_release_memory): Free all memory allocated from
 123         bitmap_obstack.
 124
 125         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 126         EXECUTE_IF_AND_IN_BITMAP.
 127
 128 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 129
 130         * alias.c (true_dependence): Address with AND can alias scalars.
 131         (anti_dependence, output_dependence): Likewise.
 132
 133         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 134
 135 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 136
 137         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 138           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 139           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 140           definitions.  Use -qrtems instead of -mrtems.
 141
 142 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 143
 144         * xm-sco5.h (sys_siglist): Define.
 145         (SYS_SIGLIST_DECLARED): Likewise.
 146
 147 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 148
 149         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 150
 151 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 152
 153         * except.c (eh_outer_context): Expand masking operation using
 154         expand_binop.
 155
 156 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 157
 158         * alpha.md (floatdisf2-1): New pattern.
 159
 160 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 161
 162         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 163         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 164         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 165         * gcc.texi: Note that if you define sys_siglist that you should
 166         also define SYS_SIGLIST_DECLARED.
 167
 168         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 169         are relative to the next instruction, not the current instruction.
 170
 171 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 172
 173         * local-alloc.c (contains_replace_regs): New function.
 174         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 175         verify that there is no existing REG_EQUIV note, and add a call to
 176         contains_place_regs.
 177
 178 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 179
 180         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 181         (STARTFILE_SPEC): Always use crtbegin.o%s
 182         (ENDFILE_SPEC): Always use crtend.o%s.
 183
 184 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 185
 186         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 187         is passed in.
 188         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 189         SFmode for 64 bit hosts.
 190
 191 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 192
 193         * fixincludes: Permits spaces between # and define.  Discard C++
 194         comments in sys/pci.h on HP/UX 10.20.
 195
 196 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 197
 198         * version.c: Bump for snapshot.
 199
 200         * pa.c (restore_unscaled_index_insn_codes): New function.
 201         (record_unscaled_index_insn_codes): Likewise.
 202         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 203         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 204         (pa_reorg): Call record_unscaled_index_insn_codes.
 205
 206         * haifa-sched.c (move_insn): Handle notes correctly for insns
 207         with SCHED_GROUP_P set.
 208
 209 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 210
 211         * alpha/xm-linux.h (USE_BFD): Undef before define.
 212
 213 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 214
 215         * cse.c (cse_insn): Don't record BLKmode values.
 216
 217 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 218
 219         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 220
 221 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 222
 223         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 224         * collect2.c (sys_errlist): Likewise.
 225         * cpplib.c (sys_errlist): Likewise.
 226         * gcc.c (sys_errlist): Likewise.
 227         * protoize (sys_errlist): Likewise.
 228         * configure.in: Check for strerror.
 229         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 230         * xm-gnu.h (HAVE_STRERROR): Likewise.
 231         * xm-linux.h (HAVE_STRERROR): Likewise.
 232         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 233         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 234         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 235         * xm-dos.h (HAVE_STRERROR): Likewise.
 236         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 237         * xm-pa.h (HAVE_STRERROR): Likewise.
 238         * xm-papro.h (HAVE_STRERROR): Likewise.
 239         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 240         * configure, config.in: Rebuilt.
 241
 242         * Makefile.in: Add several missing "else true" clauses.
 243
 244         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 245         * mips-tfile.c: Likewise.
 246         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 247         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 248         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 249         * configure.in: Check for sys_siglist declaration.
 250         * configure, config.in: Rebuilt.
 251
 252 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 253
 254         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 255         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 256         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 257         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 258         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 259         macro EXTRA_SUBTARGET_SWITCHES.
 260         * configure.in (sh*-*-rtems*): New target.
 261         * sh/rtems.h: New file.
 262         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 263         * configure: Rebuilt.
 264
 265 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 266
 267         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 268
 269 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 270
 271         * rs6000.md: Make DF fused-add operations pay attention to
 272         -mno-fused-add.
 273
 274 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 275
 276         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 277
 278 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 279
 280         * pa.md (reload_peepholes): Make sure operand is a REG before
 281         examining REGNO.  Allow general registers too.
 282
 283 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 284
 285         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 286
 287 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 288
 289         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 290         to reallocate abbrev_die_table.
 291
 292 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 293
 294         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 295
 296 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 297
 298         * Makefile.in (config.status): Depend on version.c
 299
 300         * expr.h (insn_gen_function): Reenable prototype.
 301
 302         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 303         first parameter.
 304
 305 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 306
 307         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 308
 309 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 310
 311         * version.c: Bump for latest snapshot.
 312
 313         * bc-optab.c: Conditionally include stdlib.h.
 314         (free): Provide a declaration if NEED_DECLARATION_FREE.
 315         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 316         * rtl.h (free): Remove declaration.
 317         * tree.h (free): Remvoe declaration.
 318
 319         * configure: Rebuilt.
 320
 321 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 322
 323         * flags.h (flag_move_all_movables): Declare.
 324         (flag_reduce_all_givs): Likewise.
 325         * loop.c (move_movables): Handle flag_move_all_movables.
 326         (strength_reduce): Handle flag_reduce_all_givs.
 327         * toplev.c (flag_move_all_movables): Define.
 328         (flag_reduce_all_givs): Likewise.
 329         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 330         * invoke.texi: Document new options, including alias stuff that
 331         wasn't included last time.
 332
 333 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 334
 335         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 336         * t-mn10200: Ditto.
 337         * t-vxsparc: Ditto.
 338         * t-vxworks68: Ditto.
 339         * t-vxworks960: Ditto.
 340         * t-vx29k: Ditto.
 341
 342 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 343
 344         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 345         if not already defined, and USE_C_ALLOCA not defined.
 346
 347 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 348
 349         * config.guess: Replace with script that uses ../config.guess.
 350
 351         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 352         if USE_GNULIBC_1 is not defined.
 353
 354 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 355
 356         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 357         * config.guess: Recognize alpha-linux-gnulibc1.
 358         * configure.in (alpha-*-linux-gnulibc1): New target.
 359         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 360
 361 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 362
 363         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 364         last change.
 365
 366 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 367
 368         * loop.c (combine_movables): Earlier insns don't match later ones.
 369
 370 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 371
 372         * config/linux.h (CC1_SPEC): Define it only if not defined.
 373
 374         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 375         <linux.h>
 376
 377         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 378         USE_GNULIBC_1 is not defined.
 379
 380         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 381
 382         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 383         as 1 if USE_GNULIBC_1 is not defined.
 384
 385 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 386
 387         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 388         to be something other than a REG.
 389         * function.c (expand_function_end): Fix current_function_return_rtx
 390         if it was a pseudo.
 391
 392         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 393         * x-netbsd: Likewise
 394         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 395         (INSTALL_HEADERS): Delete.
 396         * x-dguxbcs: Likewise.
 397         * x-hp3bsd44: Likewise
 398         * x-pa: Likewise.
 399
 400 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 401
 402         * i386.md (pop): pop increments the stack pointer.
 403         (prologue_set_stack_ptr): New pattern.
 404         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 405         instead of subsi3.
 406
 407 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 408
 409         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 410         address where an offsettable address is required.
 411
 412 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 413
 414         * loop.c (check_final_value): Don't miss a biv increment in a
 415         parallel.
 416
 417 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 418
 419         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 420         TYPE_DECL_IS_STUB instead of DECL_NAME.
 421
 422 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 423
 424         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 425
 426 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 427
 428         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 429
 430 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 431
 432         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 433         (find_post_sched_live): Likewise.
 434
 435         * haifa-sched.c (schedule_block): Remove old code to get arguments
 436         from hard regs into pseudos early.
 437
 438 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 439
 440         * version.c: Bump for new snapshot.
 441
 442         * local-alloc.c (update_equiv_regs): All the target to reject
 443         promotion of some REG_EQUAL to REG_EQUIV notes.
 444         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 445
 446         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 447         secondary reloads.
 448
 449         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 450         store of the argument registers.
 451
 452 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 453
 454         * fold-const.c (multiple_of_p): New function.
 455         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 456
 457 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 458
 459         * expr.h (insn_gen_function): Temporarily remove prototype.
 460
 461 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 462
 463         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 464         filenames.  Use sed to extract base filename for install.
 465
 466 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 467
 468         * unroll.c (find_splittable_givs): Only share if two givs have the
 469         same add and multiply values.
 470
 471 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 472
 473         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 474         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 475
 476 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 477
 478         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 479         around branch tables.
 480         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 481         and .end_brtab directives if TARGET_GAS.
 482
 483 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 484
 485         * alias.c (true_dependence): Pass x_addr not x to varies.
 486
 487         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 488         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 489         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 490         declarations.
 491         * config.in, configure: Regenerate.
 492
 493 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 494
 495         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 496         LO_SUM.
 497         (record_set): Handle LO_SUM like PLUS.
 498         (init_alias_analysis): When following chains of base addresses,
 499         do not stop on reaching a hard register.
 500
 501 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 502
 503         * version.c: Bump for new snapshot.
 504
 505 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 506
 507         * alpha.h (ARCH_ASM_FILE_START): Define.
 508         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 509         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 510
 511 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 512
 513         * Makefile.in (install-common): Put gcov comment at start of line.
 514
 515 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 516
 517         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 518         array, simplify entries for hard registers too.
 519
 520 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 521
 522         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 523         list.
 524
 525 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 526
 527         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 528         block_stack before dereferencing it.
 529
 530 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 531
 532         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 533
 534 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 535
 536         * cplus-dem.c: Add 'extern' to prepends_underscore.
 537
 538 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 539
 540         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 541         (get_issue_rate): Delete.
 542         * pa.h (ISSUE_RATE): Define.
 543
 544         * configure.in: Turn on haifa by default for the PA.
 545         * configure: Rebuilt.
 546         * pa.c (override_options): Accept -mschedule=7200 option.
 547         (pa_adjust_cost): No longer need to scale costs for newer
 548         processors.
 549         * pa.h (enum processor_type): Add PROCESSOR_7200.
 550         * pa.md: Revamp scheduling parameters to work better with
 551         haifa.  Add scheduling parameters for the 7200.
 552
 553         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
 554         insns too.
 555         (schedule_block): When adjusting basic_block_{head,end}, account
 556         for movement of SCHED_GROUP_P insns too.
 557
 558         * haifa-sched.c (debug_dependencies): Fix thinko.
 559
 560         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
 561         (site.exp, check, check-g++, check-gcc): New targets.
 562
 563         * haifa-sched.c: Make lots of variables static.
 564
 565 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 566
 567         * expr.h, real.h: Finish prototyping.
 568
 569 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
 570
 571         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
 572         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
 573         * reload1.c: Undo bugfix from Aug 11.
 574
 575 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
 576
 577         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
 578         quotes around the name.
 579         * configure: Regenerate.
 580
 581 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
 582
 583         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
 584
 585 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 586
 587         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
 588         to sub-makes to avoid building more passes than the user might have
 589         requested on the command line.
 590
 591 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
 592
 593         * configure.in: Expurgate `broken_install' (install is
 594         autoconfed).
 595
 596         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
 597         relevant).
 598
 599 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
 600
 601         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
 602         functions and declarations.
 603         (analyze_loop_iterations): Use condjump_p.
 604         (insert_bct): Likewise.  Use exact_log2.
 605
 606 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
 607
 608         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
 609         (schedule_region): Likewise.
 610         (schedule_insns): Likewise.
 611
 612         * PROJECTS: Update with Haifa stuff.
 613
 614 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
 615
 616         * version.c: Change the version string to look like:
 617         egcs-2.90.00 970814 (gcc2-970802 experimental).
 618
 619         * loop.c (is_conditional_branch): Make definition match declaration.
 620
 621         * gcc.c: Take out experimental snapshot warning message.
 622
 623 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
 624
 625         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
 626         print out the names of the notes.  Print out the name of the insn
 627         that is not a note, and not an {,CALL_,JUMP_}INSN.
 628
 629 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
 630
 631         * configure.in (haifa configury): Fix typo.
 632         * configure: Regenerate.
 633
 634 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
 635
 636         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
 637
 638         * gcc.info*: Rebuilt.
 639
 640         * COPYING.g77, README.g77: New files.
 641         * real.c (ereal_unto_float, ereal_unto_double): New functions.
 642         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
 643         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
 644
 645 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
 646
 647         * Integrate Haifa instruction scheduler.
 648         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
 649         to sched with $(SCHED_CFLAGS.
 650         * configure.in: Handle --enable-haifa.
 651         * configure: Rebuilt.
 652         * flags.h: Add new flags for haifa instruction scheduler.
 653         * genattrtab.c (expand_units): For haifa, don't subtract one
 654         when computing blockage.
 655         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
 656         (flag_schedule_speculative): Ditto.
 657         (flag_schedule_speculative_load): Ditto.
 658         (flag_schedule_speculative_load_dangerous): Ditto.
 659         (flag_schedule_reverse_before_reload): Ditto.
 660         (flag_schedule_reverse_after_reload): Ditto.
 661         (flag_branch_on_count_reg): Ditto.
 662         (f_options): Add Haifa switches.
 663         (main): Turn off some Haifa options if appropriate macro is
 664         defined.  Process Haifa switches.
 665         * unroll.c (iteration_info): No longer static, since Haifa
 666         scheduler uses it.
 667         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
 668         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
 669         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
 670         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
 671         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
 672         storage for the Haifa scheduler.
 673         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
 674         LABEL_NEXTREF.
 675         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
 676         are defined, call analyze_loop_iterations and insert_bct to use
 677         countdown loops.
 678         (record_giv): Refine test for jumps out of loops if HAIFA is
 679         defined.
 680         (analyze_loop_iterations): New function to identify if we can use
 681         a countdown loop.
 682         (insert_bct): Insert countdown loop.
 683         (instrument_loop_bct): Low level code to insert countdown loop.
 684         (loop_number): Calculate UID of loop.
 685         (indirect_jump_in_function_p): Return true if an indirect jump is
 686         in the function.
 687         (is_power_of_2): Return true if value is a power of 2.
 688         (is_conditional_branch): Return true if insn is a conditional
 689         jump.
 690         (fix_bct_param): Process -fbct-{min,max}-N switches.
 691         (check_bct_param): Return true if loop should be instrumented.
 692         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
 693         (loop_optimize): Initialize.
 694         (get_condition_for_loop): Ditto.
 695         * loop.c (strength_reduce): Inside of code that uses #ifdef
 696         HAVE_decrement_and_branch_on_count code, test it to make sure the
 697         condition is true.
 698         (instrument_loop_bct): Ditto.
 699         * haifa-sched.c: New file.
 700
 701
 702         * Integrate regmove pass.
 703         * Makefile.in (OBJS): Add regmove.o
 704         (regmove.o): Add dependencies.
 705         * flow.c (find_use_as_address): No longer static.
 706         * rtl.h (find_use_as_address): Declare.
 707         * toplev.c (regmove_dump, flag_regmove): Define.
 708         (f_options): Add -fregmove.
 709         (regmove_dump_file, regmove_time): Define.
 710         (fatal_insn): Close the regmove dump file.
 711         (compile_file): Initialize regmove_time; open/close the regmove dump
 712         file as needed.  Print regmove time as needed.
 713         (rest_of_compilation): Run regmove pass if requested, dump
 714         RTL after regmove if requested.
 715         (main): If -O2 or more, turn on regmove.  Handle dump switches.
 716         * regmove.c: New file.
 717
 718 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
 719
 720         * Integrate tlink patch from jason@cygnus.com
 721         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
 722         (process_command): Increment n_switches for them.  Don't discard
 723         their args.  Validate them.
 724         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
 725         From Rohan Lenard.
 726         (process_command): Set include_prefixes from COMPILER_PATH.
 727         (main): Set COLLECT_GCC_OPTIONS sooner.
 728         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
 729         * tlink.c, hash.c, hash.h: New files.
 730         * Makefile.in (USE_COLLECT2): Always use collect2.
 731         (collect2): Depend on and link in hash.o and tlink.o.
 732         (tlink.o, hash.o): Add dependencies.
 733
 734 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
 735
 736         * Integrate alias analysis changes from jfc@mit.edu
 737         * Makefile.in (OBJS): Add alias.o
 738         (alias.o): Add dependencies.
 739         * alias.c: New file.
 740         * sched.c: Remove alias analysis code.  It lives in alias.c now.
 741         (sched_analyze_2): Add new arguments to true_dependence.
 742         (schedule_insns): Always call init_alias_analysis.
 743         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
 744         mark return value from such functions as a pointer and keep track of
 745         them for alias analysis.  If a return value from a function is a
 746         pointer, mark it as such.
 747         * combine.c (distribute_notes): Handle REG_NOALIAS.
 748         * cse.c (struct write_data): Delete.  No longer needed.
 749         (invalidate): Don't call set_nonvarying_address_components anymore.
 750         Use true_dependence to decide if an entry should be removed from
 751         the hash table.
 752         (invalidate_memory): Remove WRITES argument, simplify appropriately.
 753         Fix all callers.
 754         (note_mem_written): Similarly for WRITE_PTR argument.
 755         (invalidate_from_clobbers): Similarly for W argument.
 756         (invalidate_for_call): Remove memory elements from the hash table.
 757         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
 758         (cse_rtx_varies_p): New function.  Derived from old
 759         cse_rtx_addr_varies_p.
 760         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
 761         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
 762         pointer if PUSH_ROUNDING is defined.  No longer need to call
 763         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
 764         (skipped_writes_memory): Remove variable.
 765         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
 766         (invalidate_skipped_block): Simplify for new alias analysis code.
 767         (cse_set_around_loop): Likewise.
 768         (cse_main): Call init_alias_analysis.
 769         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
 770         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
 771         (f_options): Add new alias checking arguments.
 772         (main): Set flag_alias_check when optimizing.
 773         * local_alloc (validate_equiv_mem_from_store): Add new arguments
 774         to true_dependence.
 775         (memref_referenced_p): Likewise.
 776         * loop.c (NUM_STORES): Increase to 30.
 777         (prescan_loop): Only non-constant calls set unknown_address_altered.
 778         (invariant_p): Add new arguments to true_dependence.
 779         (record_giv): Initialize unrolled and shared fields.
 780         (emit_iv_add_mult): Call record_base_value as needed.
 781         * loop.h (struct induction): Add unrolled and shared fields.
 782         * unroll.c  (unroll_loop): Call record_base_value as needed.
 783         (copy_loop_body): Likewise.
 784         (final_biv_value): Likewise.
 785         (final_giv_value): Likewise.
 786         (find_splittable_regs): Likewise.  Only create one new pseudo
 787         if we have multiple address GIVs that were combined with the same
 788         dst_reg GIV.  Note when a new register is created due to unrolling.
 789         * rtl.c (reg_note_name): Add REG_NOALIAS.
 790         * rtl.h (enum reg_note): Similarly.
 791         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
 792         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
 793         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
 794         (true_dependence, read_dependence, anti_dependence): Likewise.
 795         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
 796         (mark_user_reg, mark_reg_pointer): Likewise.
 797
 798
 799         * Integrate reload bugfix from Wilon which enables the PA port
 800         to bootstrap again.
 801         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
 802         OPERAND_ADDRESS when computing how many registers an insn needs.
 803         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
 804         conflict.
 805         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
 806         OPADDR_ADDR reload.
 807         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
 808         in reload_reg_use_in_op_addr do not reach the end.
 809         do not reach the end.
 810         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
 811         RELOAD_FOR_OPERAND_ADDRESS.
 812
 813 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
 814
 815         * egcs project officially starts.
 816