gcc/ChangeLog

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