gcc/ChangeLog

   1 Wed Sep 10 10:51:21 1997  Jeffrey A Law  (law@cygnus.com)
   2
   3         * expr.c (emit_block_move): Always return a value.
   4
   5 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
   6
   7         Add port done awhile ago for the ARC cpu.
   8         * arc/arc.h: New file.
   9         * arc/arc.c: New file.
  10         * arc/arc.md: New file.
  11         * arc/initfini.c: New file.
  12         * arc/lib1funcs.asm: New file.
  13         * arc/t-arc: New file.
  14         * arc/xm-arc.h: New file.
  15         * ginclude/va-arc.h: New file.
  16         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
  17         * ginclude/varargs.h: Likewise.
  18         * Makefile.in (USER_H): Add va-arc.h.
  19         * configure.in (arc-*-elf*): Recognize.
  20         * longlong.h: Add ARC support.
  21
  22 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
  23
  24         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
  25         when clearing non-BLKmode data.
  26
  27 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
  28
  29         * xm-m88k.h (USG): Only define if it hasn't already been defined.
  30
  31         * Makefile.in (risky-stage1): Delete gratutious whitespace.
  32
  33         * Makefile.in (clean): Delete libgcc1-test.
  34
  35         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
  36
  37 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
  38
  39         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
  40         template.
  41
  42 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
  43
  44         * haifa-sched.c (print_value): Fix last change.
  45
  46 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
  47
  48         * v850.h (ASM_SPEC): Pass on target processor.
  49         (CPP_PREDEFINES): Only define if not already specified.
  50         (TARGET_VERSION): Only define if not already specified.
  51         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
  52         processor.
  53         (EXTRA_SWITCHES): Extra entries in the switches array.
  54         (TARGET_DEFAULT): Set default target processor.
  55
  56 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
  57
  58         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
  59         cases, add %# and %/, and add : to make them into extended asms.
  60
  61 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
  62
  63         * alias.c (init_alias_analysis): Clean up incompatible pointer
  64         type warning in bzero.
  65         * regmove.c (regmove_optimize): Ditto.
  66         * haifa-sched.c (find_rgns): Ditto.
  67
  68         * haifa-sched.c (print_value): Clean up ptr->int cast
  69         warnings.
  70
  71 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
  72
  73         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
  74         * install.texi (Configurations): Ditto.
  75         * config.sub: Ditto.
  76
  77 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
  78
  79         * Makefile.in (sdbout.o): Depend on insn-config.h.
  80
  81 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
  82
  83         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
  84         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
  85
  86 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
  87
  88         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
  89         prologue insn, only the first elt is significant.
  90         (output_call_frame_info): For exception handling, always use 4-byte
  91         fields as specified by the dwarf2 spec.
  92         Don't skip trivial FDEs.
  93
  94 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
  95
  96         * version.c: Bump for snapshot.
  97
  98 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
  99
 100         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 101         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 102         when op1_is_pow2.
 103
 104 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 105
 106         * final.c (shorten_branches): During first pass, assume worst
 107         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 108
 109         * Makefile.in (distclean): Remove various things left around
 110         by running the testsuite.
 111
 112 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 113
 114         * configure.in (out_file): Emit definition to config.status in order
 115         to have a defined value for configure.lang.
 116         * configure: Re-built.
 117
 118 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 119
 120         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 121         for ld-new.
 122         * configure: Rebuilt.
 123
 124 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 125
 126         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 127
 128 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 129
 130         * sparc/sparc.md: Add ultrasparc scheduling support.
 131         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 132
 133 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 134
 135         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 136         as initial value for real_label_map.
 137         (copy_for_inline): Likewise.
 138
 139 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 140
 141         * sched.c (update_flow_info) When looking if to set found_split_dest
 142         or found_orig_dest, look at all parts of a PARALLEL.
 143         * haifa-sched.c (update_flow_info): Likewise.
 144
 145 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 146
 147         * v850: New directory for v850 port.
 148         * v850/lib1funcs.asm: New file.
 149         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 150         * ginclude/va-v850.h: New file.
 151         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 152         * configure.in (mn10200-*-*): New target.
 153         * configure: Rebuilt.
 154         * config.sub: Handle v850-elf.
 155         * Makefile.in (USER_H): Add va-mn10200.h.
 156         * invoke.texi: Document v850 stuff.
 157
 158 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 159
 160         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 161         has integer TYPE_{MAX,MIN}_VALUE before using them.
 162
 163         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 164         __HPUX_ASM__ versions.
 165
 166 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 167
 168         * install.sh: Delete duplicate install script.
 169
 170 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 171
 172         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 173         computed goto which sets the same stack register.
 174
 175         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 176         destination are both on the regstack.
 177         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 178
 179 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 180
 181         * mips.md (nonlocal_goto_receiver): Define.
 182
 183         * profile.c (output_arc_profiler): Check next_insert_after for non
 184         NULL before deferencing it.
 185
 186         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 187
 188 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 189
 190         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 191
 192 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 193
 194         * toplev.c (rest_of_compilation): For passes starting with
 195         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 196
 197         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 198         file.
 199
 200         * flow.c (print_rtl_with_bb): Print which insns start and end
 201         basic blocks.  For the start of a basic block, also print the live
 202         information.
 203
 204 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 205
 206         * toplev.c (main): Change #elif to #else/#ifdef
 207
 208         * tlink.c: Include ctype.h.
 209         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 210
 211 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 212
 213         * bitmap.c: Conditionally include stdlib.h.
 214         (free): Provide a declaration if NEED_DECLARATION_FREE.
 215
 216 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 217
 218         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 219
 220 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 221
 222         * profile.c (output_arc_profiler): Verify next_insert_after is an
 223         INSN before and after skipping a stack pop.
 224
 225 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 226
 227         * final.c (shorten_branches): Don't count the lengths of deleted
 228         instructions.
 229
 230 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 231
 232         * version.c: Bump for snapshot.
 233
 234 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 235
 236         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 237         two bitmaps ANDed together.
 238         (bitmap_print): Declare.
 239
 240         * bitmap.c (function_obstack): Don't declare any more.
 241         (bitmap_obstack): Obstack for allocating links from.
 242         (bitmap_obstack_init): New static to say whether to initialize
 243         bitmap_obstack.
 244         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 245         (bitmap_release_memory): Free all memory allocated from
 246         bitmap_obstack.
 247
 248         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 249         EXECUTE_IF_AND_IN_BITMAP.
 250
 251 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 252
 253         * alias.c (true_dependence): Address with AND can alias scalars.
 254         (anti_dependence, output_dependence): Likewise.
 255
 256         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 257
 258 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 259
 260         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 261           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 262           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 263           definitions.  Use -qrtems instead of -mrtems.
 264
 265 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 266
 267         * xm-sco5.h (sys_siglist): Define.
 268         (SYS_SIGLIST_DECLARED): Likewise.
 269
 270 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 271
 272         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 273
 274 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 275
 276         * except.c (eh_outer_context): Expand masking operation using
 277         expand_binop.
 278
 279 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 280
 281         * alpha.md (floatdisf2-1): New pattern.
 282
 283 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 284
 285         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 286         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 287         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 288         * gcc.texi: Note that if you define sys_siglist that you should
 289         also define SYS_SIGLIST_DECLARED.
 290
 291         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 292         are relative to the next instruction, not the current instruction.
 293
 294 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 295
 296         * local-alloc.c (contains_replace_regs): New function.
 297         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 298         verify that there is no existing REG_EQUIV note, and add a call to
 299         contains_place_regs.
 300
 301 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 302
 303         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 304         (STARTFILE_SPEC): Always use crtbegin.o%s
 305         (ENDFILE_SPEC): Always use crtend.o%s.
 306
 307 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 308
 309         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 310         is passed in.
 311         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 312         SFmode for 64 bit hosts.
 313
 314 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 315
 316         * fixincludes: Permits spaces between # and define.  Discard C++
 317         comments in sys/pci.h on HP/UX 10.20.
 318
 319 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 320
 321         * version.c: Bump for snapshot.
 322
 323         * pa.c (restore_unscaled_index_insn_codes): New function.
 324         (record_unscaled_index_insn_codes): Likewise.
 325         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 326         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 327         (pa_reorg): Call record_unscaled_index_insn_codes.
 328
 329         * haifa-sched.c (move_insn): Handle notes correctly for insns
 330         with SCHED_GROUP_P set.
 331
 332 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 333
 334         * alpha/xm-linux.h (USE_BFD): Undef before define.
 335
 336 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 337
 338         * cse.c (cse_insn): Don't record BLKmode values.
 339
 340 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 341
 342         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 343
 344 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 345
 346         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 347         * collect2.c (sys_errlist): Likewise.
 348         * cpplib.c (sys_errlist): Likewise.
 349         * gcc.c (sys_errlist): Likewise.
 350         * protoize (sys_errlist): Likewise.
 351         * configure.in: Check for strerror.
 352         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 353         * xm-gnu.h (HAVE_STRERROR): Likewise.
 354         * xm-linux.h (HAVE_STRERROR): Likewise.
 355         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 356         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 357         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 358         * xm-dos.h (HAVE_STRERROR): Likewise.
 359         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 360         * xm-pa.h (HAVE_STRERROR): Likewise.
 361         * xm-papro.h (HAVE_STRERROR): Likewise.
 362         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 363         * configure, config.in: Rebuilt.
 364
 365         * Makefile.in: Add several missing "else true" clauses.
 366
 367         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 368         * mips-tfile.c: Likewise.
 369         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 370         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 371         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 372         * configure.in: Check for sys_siglist declaration.
 373         * configure, config.in: Rebuilt.
 374
 375 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 376
 377         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 378         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 379         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 380         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 381         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 382         macro EXTRA_SUBTARGET_SWITCHES.
 383         * configure.in (sh*-*-rtems*): New target.
 384         * sh/rtems.h: New file.
 385         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 386         * configure: Rebuilt.
 387
 388 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 389
 390         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 391
 392 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 393
 394         * rs6000.md: Make DF fused-add operations pay attention to
 395         -mno-fused-add.
 396
 397 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 398
 399         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 400
 401 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 402
 403         * pa.md (reload_peepholes): Make sure operand is a REG before
 404         examining REGNO.  Allow general registers too.
 405
 406 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 407
 408         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 409
 410 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 411
 412         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 413         to reallocate abbrev_die_table.
 414
 415 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 416
 417         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 418
 419 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 420
 421         * Makefile.in (config.status): Depend on version.c
 422
 423         * expr.h (insn_gen_function): Reenable prototype.
 424
 425         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 426         first parameter.
 427
 428 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 429
 430         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 431
 432 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 433
 434         * version.c: Bump for latest snapshot.
 435
 436         * bc-optab.c: Conditionally include stdlib.h.
 437         (free): Provide a declaration if NEED_DECLARATION_FREE.
 438         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 439         * rtl.h (free): Remove declaration.
 440         * tree.h (free): Remvoe declaration.
 441
 442         * configure: Rebuilt.
 443
 444 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 445
 446         * flags.h (flag_move_all_movables): Declare.
 447         (flag_reduce_all_givs): Likewise.
 448         * loop.c (move_movables): Handle flag_move_all_movables.
 449         (strength_reduce): Handle flag_reduce_all_givs.
 450         * toplev.c (flag_move_all_movables): Define.
 451         (flag_reduce_all_givs): Likewise.
 452         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 453         * invoke.texi: Document new options, including alias stuff that
 454         wasn't included last time.
 455
 456 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 457
 458         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 459         * t-mn10200: Ditto.
 460         * t-vxsparc: Ditto.
 461         * t-vxworks68: Ditto.
 462         * t-vxworks960: Ditto.
 463         * t-vx29k: Ditto.
 464
 465 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 466
 467         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 468         if not already defined, and USE_C_ALLOCA not defined.
 469
 470 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 471
 472         * config.guess: Replace with script that uses ../config.guess.
 473
 474         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 475         if USE_GNULIBC_1 is not defined.
 476
 477 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 478
 479         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 480         * config.guess: Recognize alpha-linux-gnulibc1.
 481         * configure.in (alpha-*-linux-gnulibc1): New target.
 482         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 483
 484 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 485
 486         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 487         last change.
 488
 489 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 490
 491         * loop.c (combine_movables): Earlier insns don't match later ones.
 492
 493 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 494
 495         * config/linux.h (CC1_SPEC): Define it only if not defined.
 496
 497         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 498         <linux.h>
 499
 500         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 501         USE_GNULIBC_1 is not defined.
 502
 503         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 504
 505         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 506         as 1 if USE_GNULIBC_1 is not defined.
 507
 508 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 509
 510         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 511         to be something other than a REG.
 512         * function.c (expand_function_end): Fix current_function_return_rtx
 513         if it was a pseudo.
 514
 515         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 516         * x-netbsd: Likewise
 517         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 518         (INSTALL_HEADERS): Delete.
 519         * x-dguxbcs: Likewise.
 520         * x-hp3bsd44: Likewise
 521         * x-pa: Likewise.
 522
 523 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 524
 525         * i386.md (pop): pop increments the stack pointer.
 526         (prologue_set_stack_ptr): New pattern.
 527         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 528         instead of subsi3.
 529
 530 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 531
 532         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 533         address where an offsettable address is required.
 534
 535 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 536
 537         * loop.c (check_final_value): Don't miss a biv increment in a
 538         parallel.
 539
 540 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 541
 542         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 543         TYPE_DECL_IS_STUB instead of DECL_NAME.
 544
 545 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 546
 547         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 548
 549 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 550
 551         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 552
 553 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 554
 555         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 556         (find_post_sched_live): Likewise.
 557
 558         * haifa-sched.c (schedule_block): Remove old code to get arguments
 559         from hard regs into pseudos early.
 560
 561 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 562
 563         * version.c: Bump for new snapshot.
 564
 565         * local-alloc.c (update_equiv_regs): All the target to reject
 566         promotion of some REG_EQUAL to REG_EQUIV notes.
 567         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 568
 569         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 570         secondary reloads.
 571
 572         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 573         store of the argument registers.
 574
 575 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 576
 577         * fold-const.c (multiple_of_p): New function.
 578         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 579
 580 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 581
 582         * expr.h (insn_gen_function): Temporarily remove prototype.
 583
 584 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 585
 586         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 587         filenames.  Use sed to extract base filename for install.
 588
 589 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 590
 591         * unroll.c (find_splittable_givs): Only share if two givs have the
 592         same add and multiply values.
 593
 594 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 595
 596         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 597         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 598
 599 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 600
 601         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 602         around branch tables.
 603         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 604         and .end_brtab directives if TARGET_GAS.
 605
 606 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 607
 608         * alias.c (true_dependence): Pass x_addr not x to varies.
 609
 610         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 611         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 612         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 613         declarations.
 614         * config.in, configure: Regenerate.
 615
 616 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 617
 618         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 619         LO_SUM.
 620         (record_set): Handle LO_SUM like PLUS.
 621         (init_alias_analysis): When following chains of base addresses,
 622         do not stop on reaching a hard register.
 623
 624 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 625
 626         * version.c: Bump for new snapshot.
 627
 628 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 629
 630         * alpha.h (ARCH_ASM_FILE_START): Define.
 631         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 632         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 633
 634 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 635
 636         * Makefile.in (install-common): Put gcov comment at start of line.
 637
 638 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 639
 640         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 641         array, simplify entries for hard registers too.
 642
 643 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 644
 645         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 646         list.
 647
 648 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 649
 650         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 651         block_stack before dereferencing it.
 652
 653 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 654
 655         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 656
 657 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 658
 659         * cplus-dem.c: Add 'extern' to prepends_underscore.
 660
 661 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 662
 663         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 664         (get_issue_rate): Delete.
 665         * pa.h (ISSUE_RATE): Define.
 666
 667         * configure.in: Turn on haifa by default for the PA.
 668         * configure: Rebuilt.
 669         * pa.c (override_options): Accept -mschedule=7200 option.
 670         (pa_adjust_cost): No longer need to scale costs for newer
 671         processors.
 672         * pa.h (enum processor_type): Add PROCESSOR_7200.
 673         * pa.md: Revamp scheduling parameters to work better with
 674         haifa.  Add scheduling parameters for the 7200.
 675
 676         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
 677         insns too.
 678         (schedule_block): When adjusting basic_block_{head,end}, account
 679         for movement of SCHED_GROUP_P insns too.
 680
 681         * haifa-sched.c (debug_dependencies): Fix thinko.
 682
 683         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
 684         (site.exp, check, check-g++, check-gcc): New targets.
 685
 686         * haifa-sched.c: Make lots of variables static.
 687
 688 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 689
 690         * expr.h, real.h: Finish prototyping.
 691
 692 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
 693
 694         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
 695         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
 696         * reload1.c: Undo bugfix from Aug 11.
 697
 698 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
 699
 700         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
 701         quotes around the name.
 702         * configure: Regenerate.
 703
 704 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
 705
 706         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
 707
 708 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 709
 710         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
 711         to sub-makes to avoid building more passes than the user might have
 712         requested on the command line.
 713
 714 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
 715
 716         * configure.in: Expurgate `broken_install' (install is
 717         autoconfed).
 718
 719         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
 720         relevant).
 721
 722 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
 723
 724         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
 725         functions and declarations.
 726         (analyze_loop_iterations): Use condjump_p.
 727         (insert_bct): Likewise.  Use exact_log2.
 728
 729 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
 730
 731         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
 732         (schedule_region): Likewise.
 733         (schedule_insns): Likewise.
 734
 735         * PROJECTS: Update with Haifa stuff.
 736
 737 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
 738
 739         * version.c: Change the version string to look like:
 740         egcs-2.90.00 970814 (gcc2-970802 experimental).
 741
 742         * loop.c (is_conditional_branch): Make definition match declaration.
 743
 744         * gcc.c: Take out experimental snapshot warning message.
 745
 746 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
 747
 748         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
 749         print out the names of the notes.  Print out the name of the insn
 750         that is not a note, and not an {,CALL_,JUMP_}INSN.
 751
 752 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
 753
 754         * configure.in (haifa configury): Fix typo.
 755         * configure: Regenerate.
 756
 757 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
 758
 759         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
 760
 761         * gcc.info*: Rebuilt.
 762
 763         * COPYING.g77, README.g77: New files.
 764         * real.c (ereal_unto_float, ereal_unto_double): New functions.
 765         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
 766         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
 767
 768 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
 769
 770         * Integrate Haifa instruction scheduler.
 771         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
 772         to sched with $(SCHED_CFLAGS.
 773         * configure.in: Handle --enable-haifa.
 774         * configure: Rebuilt.
 775         * flags.h: Add new flags for haifa instruction scheduler.
 776         * genattrtab.c (expand_units): For haifa, don't subtract one
 777         when computing blockage.
 778         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
 779         (flag_schedule_speculative): Ditto.
 780         (flag_schedule_speculative_load): Ditto.
 781         (flag_schedule_speculative_load_dangerous): Ditto.
 782         (flag_schedule_reverse_before_reload): Ditto.
 783         (flag_schedule_reverse_after_reload): Ditto.
 784         (flag_branch_on_count_reg): Ditto.
 785         (f_options): Add Haifa switches.
 786         (main): Turn off some Haifa options if appropriate macro is
 787         defined.  Process Haifa switches.
 788         * unroll.c (iteration_info): No longer static, since Haifa
 789         scheduler uses it.
 790         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
 791         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
 792         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
 793         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
 794         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
 795         storage for the Haifa scheduler.
 796         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
 797         LABEL_NEXTREF.
 798         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
 799         are defined, call analyze_loop_iterations and insert_bct to use
 800         countdown loops.
 801         (record_giv): Refine test for jumps out of loops if HAIFA is
 802         defined.
 803         (analyze_loop_iterations): New function to identify if we can use
 804         a countdown loop.
 805         (insert_bct): Insert countdown loop.
 806         (instrument_loop_bct): Low level code to insert countdown loop.
 807         (loop_number): Calculate UID of loop.
 808         (indirect_jump_in_function_p): Return true if an indirect jump is
 809         in the function.
 810         (is_power_of_2): Return true if value is a power of 2.
 811         (is_conditional_branch): Return true if insn is a conditional
 812         jump.
 813         (fix_bct_param): Process -fbct-{min,max}-N switches.
 814         (check_bct_param): Return true if loop should be instrumented.
 815         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
 816         (loop_optimize): Initialize.
 817         (get_condition_for_loop): Ditto.
 818         * loop.c (strength_reduce): Inside of code that uses #ifdef
 819         HAVE_decrement_and_branch_on_count code, test it to make sure the
 820         condition is true.
 821         (instrument_loop_bct): Ditto.
 822         * haifa-sched.c: New file.
 823
 824
 825         * Integrate regmove pass.
 826         * Makefile.in (OBJS): Add regmove.o
 827         (regmove.o): Add dependencies.
 828         * flow.c (find_use_as_address): No longer static.
 829         * rtl.h (find_use_as_address): Declare.
 830         * toplev.c (regmove_dump, flag_regmove): Define.
 831         (f_options): Add -fregmove.
 832         (regmove_dump_file, regmove_time): Define.
 833         (fatal_insn): Close the regmove dump file.
 834         (compile_file): Initialize regmove_time; open/close the regmove dump
 835         file as needed.  Print regmove time as needed.
 836         (rest_of_compilation): Run regmove pass if requested, dump
 837         RTL after regmove if requested.
 838         (main): If -O2 or more, turn on regmove.  Handle dump switches.
 839         * regmove.c: New file.
 840
 841 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
 842
 843         * Integrate tlink patch from jason@cygnus.com
 844         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
 845         (process_command): Increment n_switches for them.  Don't discard
 846         their args.  Validate them.
 847         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
 848         From Rohan Lenard.
 849         (process_command): Set include_prefixes from COMPILER_PATH.
 850         (main): Set COLLECT_GCC_OPTIONS sooner.
 851         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
 852         * tlink.c, hash.c, hash.h: New files.
 853         * Makefile.in (USE_COLLECT2): Always use collect2.
 854         (collect2): Depend on and link in hash.o and tlink.o.
 855         (tlink.o, hash.o): Add dependencies.
 856
 857 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
 858
 859         * Integrate alias analysis changes from jfc@mit.edu
 860         * Makefile.in (OBJS): Add alias.o
 861         (alias.o): Add dependencies.
 862         * alias.c: New file.
 863         * sched.c: Remove alias analysis code.  It lives in alias.c now.
 864         (sched_analyze_2): Add new arguments to true_dependence.
 865         (schedule_insns): Always call init_alias_analysis.
 866         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
 867         mark return value from such functions as a pointer and keep track of
 868         them for alias analysis.  If a return value from a function is a
 869         pointer, mark it as such.
 870         * combine.c (distribute_notes): Handle REG_NOALIAS.
 871         * cse.c (struct write_data): Delete.  No longer needed.
 872         (invalidate): Don't call set_nonvarying_address_components anymore.
 873         Use true_dependence to decide if an entry should be removed from
 874         the hash table.
 875         (invalidate_memory): Remove WRITES argument, simplify appropriately.
 876         Fix all callers.
 877         (note_mem_written): Similarly for WRITE_PTR argument.
 878         (invalidate_from_clobbers): Similarly for W argument.
 879         (invalidate_for_call): Remove memory elements from the hash table.
 880         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
 881         (cse_rtx_varies_p): New function.  Derived from old
 882         cse_rtx_addr_varies_p.
 883         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
 884         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
 885         pointer if PUSH_ROUNDING is defined.  No longer need to call
 886         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
 887         (skipped_writes_memory): Remove variable.
 888         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
 889         (invalidate_skipped_block): Simplify for new alias analysis code.
 890         (cse_set_around_loop): Likewise.
 891         (cse_main): Call init_alias_analysis.
 892         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
 893         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
 894         (f_options): Add new alias checking arguments.
 895         (main): Set flag_alias_check when optimizing.
 896         * local_alloc (validate_equiv_mem_from_store): Add new arguments
 897         to true_dependence.
 898         (memref_referenced_p): Likewise.
 899         * loop.c (NUM_STORES): Increase to 30.
 900         (prescan_loop): Only non-constant calls set unknown_address_altered.
 901         (invariant_p): Add new arguments to true_dependence.
 902         (record_giv): Initialize unrolled and shared fields.
 903         (emit_iv_add_mult): Call record_base_value as needed.
 904         * loop.h (struct induction): Add unrolled and shared fields.
 905         * unroll.c  (unroll_loop): Call record_base_value as needed.
 906         (copy_loop_body): Likewise.
 907         (final_biv_value): Likewise.
 908         (final_giv_value): Likewise.
 909         (find_splittable_regs): Likewise.  Only create one new pseudo
 910         if we have multiple address GIVs that were combined with the same
 911         dst_reg GIV.  Note when a new register is created due to unrolling.
 912         * rtl.c (reg_note_name): Add REG_NOALIAS.
 913         * rtl.h (enum reg_note): Similarly.
 914         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
 915         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
 916         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
 917         (true_dependence, read_dependence, anti_dependence): Likewise.
 918         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
 919         (mark_user_reg, mark_reg_pointer): Likewise.
 920
 921
 922         * Integrate reload bugfix from Wilon which enables the PA port
 923         to bootstrap again.
 924         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
 925         OPERAND_ADDRESS when computing how many registers an insn needs.
 926         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
 927         conflict.
 928         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
 929         OPADDR_ADDR reload.
 930         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
 931         in reload_reg_use_in_op_addr do not reach the end.
 932         do not reach the end.
 933         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
 934         RELOAD_FOR_OPERAND_ADDRESS.
 935
 936 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
 937
 938         * egcs project officially starts.
 939