gcc/ChangeLog

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