gcc/ChangeLog

   1 Mon Sep 15 15:24:00 1997  Richard Henderson  <rth@cygnus.com>
   2
   3         * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
   4
   5         * alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
   6         out-or-range reg_offset.
   7         (output_epilog): Likewise.
   8
   9 Mon Sep 15 15:39:26 1997  Jeffrey A Law  (law@cygnus.com)
  10
  11         * cse.c (simplify_relational_operation): If MODE specifies a
  12         mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
  13         is derived from the sign bit of the low word.
  14
  15 Mon Sep 15 11:43:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
  16
  17         Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
  18
  19         * dwarf2.h: Add DW_CFA_GNU_args_size.
  20         * frame.c (execute_cfa_insn): Likewise.
  21         * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
  22         (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
  23         (dwarf2out_frame_debug): If this isn't a prologue or epilogue
  24         insn, hand it off to dwarf2out_stack_adjust.
  25         (dwarf2out_begin_prologue): Initialize args_size.
  26         * frame.h (struct frame_state): Add args_size.
  27         * libgcc2.c (__throw): Use args_size.
  28         * final.c (final_scan_insn): If we push args, hand off all insns
  29         to dwarf2out_frame_debug.
  30         * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
  31
  32         * dwarf2out.c dwarf2out_frame_debug): Fix typo.
  33         Handle epilogue restore of SP from FP.
  34         * emit-rtl.c (gen_sequence): Still generate a sequence if the
  35         lone insn has RTX_FRAME_RELATED_P set.
  36
  37         * frame.c (extract_cie_info): Handle "e" augmentation.
  38         * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
  39         absence of UNALIGNED_*_ASM_OP.
  40         (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
  41         (output_call_frame_info): Use "e" instead of "z" for augmentation.
  42         Don't emit augmentation fields length.
  43         (dwarf2out_do_frame): Move outside of #ifdefs.
  44         * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
  45         opcodes.
  46
  47         * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
  48         * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
  49         * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
  50         * sparc/sun4gas.h: New file.
  51         * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
  52
  53         * collect2.c (write_c_file_stat, write_c_file_glob): Declare
  54         __register_frame_table and __deregister_frame.
  55
  56 1997-09-15  Brendan Kehoe  <brendan@cygnus.com>
  57
  58         * except.c (find_exception_handler_labels): Use xmalloc instead of
  59         alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
  60         in some cases.
  61
  62 Sun Sep 14 21:01:23 1997  Jeffrey A Law  (law@cygnus.com)
  63
  64         * Makefile.in: Various changes to build info files
  65         in the object tree rather than the source tree.
  66
  67 Sun Sep 14 12:24:30 1997  Jeffrey A Law  (law@cygnus.com)
  68
  69         * fixinc.math: New file to fix math.h on some systems.
  70         * configure.in (freebsd, netbsd): Use fixinc.math on these
  71         systems.
  72         * configure: Rebuilt.
  73
  74 Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
  75
  76         * regmove.c (regmove_optimize): If we end up moving the
  77         original insn due to lifetime overlaps, make sure to move
  78         REG_NOTES too.
  79
  80 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
  81
  82         * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
  83
  84 Sat Sep 13 12:57:26 1997  Jeffrey A Law  (law@cygnus.com)
  85
  86         * haifa-sched.c (add_branch_dependences): Make each insn in
  87         a SCHED_GROUP_P block explicitly depend on the previous insn.
  88
  89 Fri Sep 12 13:49:58 1997  Jason Merrill  <jason@yorick.cygnus.com>
  90
  91         * except.h: Prototype dwarf2 hooks.
  92         * expr.c: Adjust.
  93
  94 Thu Sep 11 17:43:55 1997  Jim Wilson  <wilson@cygnus.com>
  95
  96         * configure.in (native_prefix): Delete.
  97         (mips-dec-netbsd): Don't set prefix.
  98         (*linux*): Don't set prefix.
  99
 100 Thu Sep 11 15:48:32 1997  Fred Fish  <fnf@ninemoons.com>
 101
 102         * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
 103         defined.  If not defined, include <sys/varargs.h> if
 104         HAVE_SYS_VARARGS_H is defined.
 105         * configure.in: Test for varargs.h and sys/varargs.h.
 106         * configure: Regenerate with autoconf.
 107         * config.in: Regenerate with autoheader.
 108
 109         * cpplib.c (quote_string): Cast first arg of sprintf call
 110         from "unsigned char *" to "char *".
 111         (output_line_command): Ditto.
 112         (macroexpand): Ditto.
 113         (do_line): Cast atoi arg from "unsigned char *" to "char *".
 114
 115 Wed Sep 10 21:37:30 1997  Jeffrey A Law  (law@cygnus.com)
 116
 117         * version.c: Bump for snapshot.
 118
 119         * Makefile.in (compare): Exit with nonzero status if there
 120         are comparison failures.  Note which files failed the
 121         comparison test in .bad_compare.
 122
 123 Wed Sep 10 17:05:46 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 124
 125         * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
 126
 127 Wed Sep 10 16:37:28 1997  Fred Fish  <fnf@ninemoons.com>
 128
 129         * Makefile.in (LN, LN_S): New macros, use where appropriate.
 130         * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
 131         * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
 132         * configure: Regenerated.
 133
 134 Thu Sep 11 11:09:43 1997  Jeffrey A Law  (law@cygnus.com)
 135
 136         * loop.c (strength_reduce): Fix typo.
 137
 138 Wed Sep 10 16:01:15 1997  Jim Wilson  <wilson@cygnus.com>
 139
 140         * m88k/m88k.c (struct option): Rename to struct options.
 141         * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
 142         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
 143         * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
 144         __DOLPHIN__ or sysV88.
 145
 146 Wed Sep 10 14:58:40 1997  Jim Wilson  <wilson@cygnus.com>
 147
 148         * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
 149         create new subreg.
 150
 151 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 152
 153         * config.sub: Accept 'amigados' for backward compatability.
 154
 155 Wed Sep 10 14:05:08 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 156
 157         * Makefile.in (testsuite/site.exp): New target.
 158         (check-gcc, check-g++): Depend on testsuite/site.exp.
 159         Don't stop for failure.
 160
 161 Wed Sep 10 12:59:57 1997  Jason Merrill  <jason@yorick.cygnus.com>
 162
 163         * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
 164         if DWARF2_UNWIND_INFO.
 165
 166 Wed Sep 10 11:49:20 1997  Jason Merrill  <jason@yorick.cygnus.com>
 167
 168         Add support for exception handling using DWARF 2 frame unwind info.
 169         Currently works on SPARC and MIPS, and almost on x86.
 170
 171         * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
 172         next_stack_level, in_reg_window): Helper fns.
 173         (__throw): Implement for DWARF2_UNWIND_INFO.
 174
 175         * expr.c (expand_builtin): Handle builtins used by __throw.
 176         * tree.h (enum built_in_function): Add builtins used by __throw.
 177         * c-decl.c (init_decl_processing): Declare builtins used by __throw.
 178         * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
 179         * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
 180         (expand_builtin_extract_return_addr): Likewise.
 181         (expand_builtin_frob_return_addr): Likewise.
 182         (expand_builtin_set_return_addr_reg): Likewise.
 183         (expand_builtin_eh_stub): Likewise.
 184         (expand_builtin_set_eh_regs): Likewise.
 185         (eh_regs): Choose two call-clobbered registers for passing back values.
 186
 187         * frame.c, frame.h: New files for parsing dwarf 2 frame info.
 188         * Makefile.in (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
 189         (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
 190         (stmp-multilib): Likewise.
 191         ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
 192
 193         * except.c: #include "defaults.h".
 194         (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
 195         (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
 196         (register_exception_table_p): New fn.
 197         (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
 198         (end_eh_unwinder): Likewise.
 199
 200         * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
 201         call __register_frame and __deregister_frame as needed.
 202         * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
 203         * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
 204         EH_FRAME_SECTION_ASM_OP.
 205         * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
 206         * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
 207         (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
 208
 209         * dwarf2out.c (output_call_frame_info): If no support for
 210         EXCEPTION_SECTION, mark the start of the frame info with a
 211         collectable tag.
 212         * collect2.c (frame_tables): New list.
 213         (is_ctor_dtor): Recognise frame entries.
 214         (scan_prog_file): Likewise.
 215         (main): Pass -fno-exceptions to sub-compile.  Also do collection
 216         if there are any frame entries.
 217         (write_c_file_stat): Call __register_frame_table and
 218         __deregister_frame as needed.
 219         (write_c_file_glob): Likewise.
 220
 221         * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
 222         Also require unaligned reloc support.
 223         * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
 224         UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
 225         * sparc/sysv4.h: Not here.
 226
 227         * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
 228         * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
 229         (dwarf2out_finish): Don't call dwarf2out_frame_finish.
 230
 231         * libgcc2.c (L_eh): Reorganize, moving code shared by different
 232         EH implementations to the top.
 233         (find_exception_handler): Split out.  Start from 0.  Compare against
 234         end with >=.
 235         (__find_first_exception_table_match): Use it.
 236         * except.c (output_exception_table): Don't do anything if there's
 237         no table.  Don't output a first entry of zeroes.
 238         (eh_outer_context): Adjust properly.
 239         (add_eh_table_entry): Use xrealloc.
 240         * toplev.c (compile_file): Just call output_exception_table.
 241
 242 Wed Sep 10  11:30:36 1997  Jason Merrill  <jason@cygnus.com>
 243
 244         * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
 245
 246 Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 247
 248         * except.c (eh_outer_context): Do masking using expand_and.
 249
 250 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
 251
 252         Add port done awhile ago for the ARC cpu.
 253         * arc/arc.h: New file.
 254         * arc/arc.c: New file.
 255         * arc/arc.md: New file.
 256         * arc/initfini.c: New file.
 257         * arc/lib1funcs.asm: New file.
 258         * arc/t-arc: New file.
 259         * arc/xm-arc.h: New file.
 260         * ginclude/va-arc.h: New file.
 261         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
 262         * ginclude/varargs.h: Likewise.
 263         * Makefile.in (USER_H): Add va-arc.h.
 264         * configure.in (arc-*-elf*): Recognize.
 265         * longlong.h: Add ARC support.
 266
 267 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
 268
 269         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
 270         when clearing non-BLKmode data.
 271
 272 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 273
 274         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
 275         * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
 276
 277         * xm-m88k.h (USG): Only define if it hasn't already been defined.
 278
 279         * Makefile.in (risky-stage1): Delete gratutious whitespace.
 280
 281         * Makefile.in (clean): Delete libgcc1-test.
 282
 283         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
 284
 285 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
 286
 287         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
 288         template.
 289
 290 Tue Sep  9 09:50:02 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 291
 292         * dwarf2out.c (output_call_frame_info): Call named_section.
 293
 294 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
 295
 296         * haifa-sched.c (print_value): Fix last change.
 297
 298 Tue Sep  9 01:30:37 1997  Jason Merrill  <jason@yorick.cygnus.com>
 299
 300         * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
 301         write_symbols.
 302
 303 Mon Sep  8 16:32:43 1997  Jason Merrill  <jason@yorick.cygnus.com>
 304
 305         * mips.c (function_prologue): Set up the CFA when ABI_32.
 306
 307         * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
 308         for dwarf2 unwind info.
 309         (output_function_prologue, sparc_flat_output_function_prologue): Same.
 310
 311         * final.c (final_end_function): Check dwarf2out_do_frame instead
 312         of DWARF2_DEBUG for dwarf2 unwind info.
 313         (final_scan_insn): Likewise.
 314         (final_start_function): Likewise.  Initialize dwarf2 frame debug here.
 315         (final): Not here.
 316
 317         * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
 318         count > 0.
 319
 320         * varasm.c (exception_section): Check EXCEPTION_SECTION first.
 321
 322 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
 323
 324         * v850.h (ASM_SPEC): Pass on target processor.
 325         (CPP_PREDEFINES): Only define if not already specified.
 326         (TARGET_VERSION): Only define if not already specified.
 327         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
 328         processor.
 329         (EXTRA_SWITCHES): Extra entries in the switches array.
 330         (TARGET_DEFAULT): Set default target processor.
 331
 332 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
 333
 334         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
 335         cases, add %# and %/, and add : to make them into extended asms.
 336
 337 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
 338
 339         * alias.c (init_alias_analysis): Clean up incompatible pointer
 340         type warning in bzero.
 341         * regmove.c (regmove_optimize): Ditto.
 342         * haifa-sched.c (find_rgns): Ditto.
 343
 344         * haifa-sched.c (print_value): Clean up ptr->int cast
 345         warnings.
 346
 347 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
 348
 349         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
 350         * install.texi (Configurations): Ditto.
 351         * config.sub: Ditto.
 352
 353 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
 354
 355         * Makefile.in (sdbout.o): Depend on insn-config.h.
 356
 357 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
 358
 359         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
 360         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
 361
 362 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
 363
 364         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
 365         prologue insn, only the first elt is significant.
 366         (output_call_frame_info): For exception handling, always use 4-byte
 367         fields as specified by the dwarf2 spec.
 368         Don't skip trivial FDEs.
 369
 370 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
 371
 372         * version.c: Bump for snapshot.
 373
 374 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
 375
 376         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 377         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 378         when op1_is_pow2.
 379
 380 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 381
 382         * final.c (shorten_branches): During first pass, assume worst
 383         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 384
 385         * Makefile.in (distclean): Remove various things left around
 386         by running the testsuite.
 387
 388 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 389
 390         * configure.in (out_file): Emit definition to config.status in order
 391         to have a defined value for configure.lang.
 392         * configure: Re-built.
 393
 394 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 395
 396         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 397         for ld-new.
 398         * configure: Rebuilt.
 399
 400 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 401
 402         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 403
 404 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 405
 406         * sparc/sparc.md: Add ultrasparc scheduling support.
 407         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 408
 409 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 410
 411         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 412         as initial value for real_label_map.
 413         (copy_for_inline): Likewise.
 414
 415 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 416
 417         * sched.c (update_flow_info) When looking if to set found_split_dest
 418         or found_orig_dest, look at all parts of a PARALLEL.
 419         * haifa-sched.c (update_flow_info): Likewise.
 420
 421 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 422
 423         * v850: New directory for v850 port.
 424         * v850/lib1funcs.asm: New file.
 425         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 426         * ginclude/va-v850.h: New file.
 427         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 428         * configure.in (mn10200-*-*): New target.
 429         * configure: Rebuilt.
 430         * config.sub: Handle v850-elf.
 431         * Makefile.in (USER_H): Add va-mn10200.h.
 432         * invoke.texi: Document v850 stuff.
 433
 434 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 435
 436         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 437         has integer TYPE_{MAX,MIN}_VALUE before using them.
 438
 439         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 440         __HPUX_ASM__ versions.
 441
 442 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 443
 444         * install.sh: Delete duplicate install script.
 445
 446 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 447
 448         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 449         computed goto which sets the same stack register.
 450
 451         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 452         destination are both on the regstack.
 453         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 454
 455 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 456
 457         * mips.md (nonlocal_goto_receiver): Define.
 458
 459         * profile.c (output_arc_profiler): Check next_insert_after for non
 460         NULL before deferencing it.
 461
 462         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 463
 464 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 465
 466         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 467
 468 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 469
 470         * toplev.c (rest_of_compilation): For passes starting with
 471         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 472
 473         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 474         file.
 475
 476         * flow.c (print_rtl_with_bb): Print which insns start and end
 477         basic blocks.  For the start of a basic block, also print the live
 478         information.
 479
 480 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 481
 482         * toplev.c (main): Change #elif to #else/#ifdef
 483
 484         * tlink.c: Include ctype.h.
 485         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 486
 487 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 488
 489         * bitmap.c: Conditionally include stdlib.h.
 490         (free): Provide a declaration if NEED_DECLARATION_FREE.
 491
 492 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 493
 494         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 495
 496 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 497
 498         * profile.c (output_arc_profiler): Verify next_insert_after is an
 499         INSN before and after skipping a stack pop.
 500
 501 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 502
 503         * final.c (shorten_branches): Don't count the lengths of deleted
 504         instructions.
 505
 506 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 507
 508         * version.c: Bump for snapshot.
 509
 510 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 511
 512         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 513         two bitmaps ANDed together.
 514         (bitmap_print): Declare.
 515
 516         * bitmap.c (function_obstack): Don't declare any more.
 517         (bitmap_obstack): Obstack for allocating links from.
 518         (bitmap_obstack_init): New static to say whether to initialize
 519         bitmap_obstack.
 520         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 521         (bitmap_release_memory): Free all memory allocated from
 522         bitmap_obstack.
 523
 524         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 525         EXECUTE_IF_AND_IN_BITMAP.
 526
 527 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 528
 529         * alias.c (true_dependence): Address with AND can alias scalars.
 530         (anti_dependence, output_dependence): Likewise.
 531
 532         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 533
 534 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 535
 536         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 537           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 538           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 539           definitions.  Use -qrtems instead of -mrtems.
 540
 541 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 542
 543         * xm-sco5.h (sys_siglist): Define.
 544         (SYS_SIGLIST_DECLARED): Likewise.
 545
 546 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 547
 548         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 549
 550 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 551
 552         * except.c (eh_outer_context): Expand masking operation using
 553         expand_binop.
 554
 555 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 556
 557         * alpha.md (floatdisf2-1): New pattern.
 558
 559 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 560
 561         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 562         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 563         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 564         * gcc.texi: Note that if you define sys_siglist that you should
 565         also define SYS_SIGLIST_DECLARED.
 566
 567         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 568         are relative to the next instruction, not the current instruction.
 569
 570 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 571
 572         * local-alloc.c (contains_replace_regs): New function.
 573         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 574         verify that there is no existing REG_EQUIV note, and add a call to
 575         contains_place_regs.
 576
 577 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 578
 579         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 580         (STARTFILE_SPEC): Always use crtbegin.o%s
 581         (ENDFILE_SPEC): Always use crtend.o%s.
 582
 583 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 584
 585         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 586         is passed in.
 587         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 588         SFmode for 64 bit hosts.
 589
 590 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 591
 592         * fixincludes: Permits spaces between # and define.  Discard C++
 593         comments in sys/pci.h on HP/UX 10.20.
 594
 595 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 596
 597         * version.c: Bump for snapshot.
 598
 599         * pa.c (restore_unscaled_index_insn_codes): New function.
 600         (record_unscaled_index_insn_codes): Likewise.
 601         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 602         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 603         (pa_reorg): Call record_unscaled_index_insn_codes.
 604
 605         * haifa-sched.c (move_insn): Handle notes correctly for insns
 606         with SCHED_GROUP_P set.
 607
 608 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 609
 610         * alpha/xm-linux.h (USE_BFD): Undef before define.
 611
 612 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 613
 614         * cse.c (cse_insn): Don't record BLKmode values.
 615
 616 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 617
 618         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 619
 620 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 621
 622         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 623         * collect2.c (sys_errlist): Likewise.
 624         * cpplib.c (sys_errlist): Likewise.
 625         * gcc.c (sys_errlist): Likewise.
 626         * protoize (sys_errlist): Likewise.
 627         * configure.in: Check for strerror.
 628         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 629         * xm-gnu.h (HAVE_STRERROR): Likewise.
 630         * xm-linux.h (HAVE_STRERROR): Likewise.
 631         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 632         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 633         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 634         * xm-dos.h (HAVE_STRERROR): Likewise.
 635         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 636         * xm-pa.h (HAVE_STRERROR): Likewise.
 637         * xm-papro.h (HAVE_STRERROR): Likewise.
 638         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 639         * configure, config.in: Rebuilt.
 640
 641         * Makefile.in: Add several missing "else true" clauses.
 642
 643         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 644         * mips-tfile.c: Likewise.
 645         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 646         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 647         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 648         * configure.in: Check for sys_siglist declaration.
 649         * configure, config.in: Rebuilt.
 650
 651 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 652
 653         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 654         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 655         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 656         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 657         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 658         macro EXTRA_SUBTARGET_SWITCHES.
 659         * configure.in (sh*-*-rtems*): New target.
 660         * sh/rtems.h: New file.
 661         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 662         * configure: Rebuilt.
 663
 664 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 665
 666         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 667
 668 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 669
 670         * rs6000.md: Make DF fused-add operations pay attention to
 671         -mno-fused-add.
 672
 673 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 674
 675         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 676
 677 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 678
 679         * pa.md (reload_peepholes): Make sure operand is a REG before
 680         examining REGNO.  Allow general registers too.
 681
 682 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 683
 684         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 685
 686 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 687
 688         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 689         to reallocate abbrev_die_table.
 690
 691 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 692
 693         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 694
 695 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 696
 697         * Makefile.in (config.status): Depend on version.c
 698
 699         * expr.h (insn_gen_function): Reenable prototype.
 700
 701         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 702         first parameter.
 703
 704 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 705
 706         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 707
 708 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 709
 710         * version.c: Bump for latest snapshot.
 711
 712         * bc-optab.c: Conditionally include stdlib.h.
 713         (free): Provide a declaration if NEED_DECLARATION_FREE.
 714         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 715         * rtl.h (free): Remove declaration.
 716         * tree.h (free): Remvoe declaration.
 717
 718         * configure: Rebuilt.
 719
 720 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 721
 722         * flags.h (flag_move_all_movables): Declare.
 723         (flag_reduce_all_givs): Likewise.
 724         * loop.c (move_movables): Handle flag_move_all_movables.
 725         (strength_reduce): Handle flag_reduce_all_givs.
 726         * toplev.c (flag_move_all_movables): Define.
 727         (flag_reduce_all_givs): Likewise.
 728         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 729         * invoke.texi: Document new options, including alias stuff that
 730         wasn't included last time.
 731
 732 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 733
 734         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 735         * t-mn10200: Ditto.
 736         * t-vxsparc: Ditto.
 737         * t-vxworks68: Ditto.
 738         * t-vxworks960: Ditto.
 739         * t-vx29k: Ditto.
 740
 741 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 742
 743         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 744         if not already defined, and USE_C_ALLOCA not defined.
 745
 746 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 747
 748         * config.guess: Replace with script that uses ../config.guess.
 749
 750         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 751         if USE_GNULIBC_1 is not defined.
 752
 753 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 754
 755         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 756         * config.guess: Recognize alpha-linux-gnulibc1.
 757         * configure.in (alpha-*-linux-gnulibc1): New target.
 758         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 759
 760 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 761
 762         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 763         last change.
 764
 765 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 766
 767         * loop.c (combine_movables): Earlier insns don't match later ones.
 768
 769 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 770
 771         * config/linux.h (CC1_SPEC): Define it only if not defined.
 772
 773         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 774         <linux.h>
 775
 776         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 777         USE_GNULIBC_1 is not defined.
 778
 779         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 780
 781         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 782         as 1 if USE_GNULIBC_1 is not defined.
 783
 784 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 785
 786         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 787         to be something other than a REG.
 788         * function.c (expand_function_end): Fix current_function_return_rtx
 789         if it was a pseudo.
 790
 791         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 792         * x-netbsd: Likewise
 793         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 794         (INSTALL_HEADERS): Delete.
 795         * x-dguxbcs: Likewise.
 796         * x-hp3bsd44: Likewise
 797         * x-pa: Likewise.
 798
 799 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 800
 801         * i386.md (pop): pop increments the stack pointer.
 802         (prologue_set_stack_ptr): New pattern.
 803         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 804         instead of subsi3.
 805
 806 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 807
 808         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 809         address where an offsettable address is required.
 810
 811 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 812
 813         * loop.c (check_final_value): Don't miss a biv increment in a
 814         parallel.
 815
 816 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 817
 818         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 819         TYPE_DECL_IS_STUB instead of DECL_NAME.
 820
 821 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 822
 823         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 824
 825 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 826
 827         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 828
 829 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 830
 831         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 832         (find_post_sched_live): Likewise.
 833
 834         * haifa-sched.c (schedule_block): Remove old code to get arguments
 835         from hard regs into pseudos early.
 836
 837 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 838
 839         * version.c: Bump for new snapshot.
 840
 841         * local-alloc.c (update_equiv_regs): All the target to reject
 842         promotion of some REG_EQUAL to REG_EQUIV notes.
 843         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 844
 845         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 846         secondary reloads.
 847
 848         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 849         store of the argument registers.
 850
 851 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 852
 853         * fold-const.c (multiple_of_p): New function.
 854         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 855
 856 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 857
 858         * expr.h (insn_gen_function): Temporarily remove prototype.
 859
 860 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 861
 862         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 863         filenames.  Use sed to extract base filename for install.
 864
 865 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 866
 867         * unroll.c (find_splittable_givs): Only share if two givs have the
 868         same add and multiply values.
 869
 870 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 871
 872         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 873         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 874
 875 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 876
 877         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 878         around branch tables.
 879         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 880         and .end_brtab directives if TARGET_GAS.
 881
 882 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 883
 884         * alias.c (true_dependence): Pass x_addr not x to varies.
 885
 886         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 887         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 888         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 889         declarations.
 890         * config.in, configure: Regenerate.
 891
 892 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 893
 894         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 895         LO_SUM.
 896         (record_set): Handle LO_SUM like PLUS.
 897         (init_alias_analysis): When following chains of base addresses,
 898         do not stop on reaching a hard register.
 899
 900 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 901
 902         * version.c: Bump for new snapshot.
 903
 904 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 905
 906         * alpha.h (ARCH_ASM_FILE_START): Define.
 907         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 908         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 909
 910 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 911
 912         * Makefile.in (install-common): Put gcov comment at start of line.
 913
 914 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 915
 916         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 917         array, simplify entries for hard registers too.
 918
 919 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 920
 921         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 922         list.
 923
 924 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 925
 926         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 927         block_stack before dereferencing it.
 928
 929 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 930
 931         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 932
 933 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 934
 935         * cplus-dem.c: Add 'extern' to prepends_underscore.
 936
 937 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 938
 939         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 940         (get_issue_rate): Delete.
 941         * pa.h (ISSUE_RATE): Define.
 942
 943         * configure.in: Turn on haifa by default for the PA.
 944         * configure: Rebuilt.
 945         * pa.c (override_options): Accept -mschedule=7200 option.
 946         (pa_adjust_cost): No longer need to scale costs for newer
 947         processors.
 948         * pa.h (enum processor_type): Add PROCESSOR_7200.
 949         * pa.md: Revamp scheduling parameters to work better with
 950         haifa.  Add scheduling parameters for the 7200.
 951
 952         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
 953         insns too.
 954         (schedule_block): When adjusting basic_block_{head,end}, account
 955         for movement of SCHED_GROUP_P insns too.
 956
 957         * haifa-sched.c (debug_dependencies): Fix thinko.
 958
 959         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
 960         (site.exp, check, check-g++, check-gcc): New targets.
 961
 962         * haifa-sched.c: Make lots of variables static.
 963
 964 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 965
 966         * expr.h, real.h: Finish prototyping.
 967
 968 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
 969
 970         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
 971         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
 972         * reload1.c: Undo bugfix from Aug 11.
 973
 974 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
 975
 976         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
 977         quotes around the name.
 978         * configure: Regenerate.
 979
 980 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
 981
 982         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
 983
 984 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 985
 986         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
 987         to sub-makes to avoid building more passes than the user might have
 988         requested on the command line.
 989
 990 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
 991
 992         * configure.in: Expurgate `broken_install' (install is
 993         autoconfed).
 994
 995         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
 996         relevant).
 997
 998 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
 999
1000         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1001         functions and declarations.
1002         (analyze_loop_iterations): Use condjump_p.
1003         (insert_bct): Likewise.  Use exact_log2.
1004
1005 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
1006
1007         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1008         (schedule_region): Likewise.
1009         (schedule_insns): Likewise.
1010
1011         * PROJECTS: Update with Haifa stuff.
1012
1013 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
1014
1015         * version.c: Change the version string to look like:
1016         egcs-2.90.00 970814 (gcc2-970802 experimental).
1017
1018         * loop.c (is_conditional_branch): Make definition match declaration.
1019
1020         * gcc.c: Take out experimental snapshot warning message.
1021
1022 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
1023
1024         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1025         print out the names of the notes.  Print out the name of the insn
1026         that is not a note, and not an {,CALL_,JUMP_}INSN.
1027
1028 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
1029
1030         * configure.in (haifa configury): Fix typo.
1031         * configure: Regenerate.
1032
1033 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
1034
1035         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1036
1037         * gcc.info*: Rebuilt.
1038
1039         * COPYING.g77, README.g77: New files.
1040         * real.c (ereal_unto_float, ereal_unto_double): New functions.
1041         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1042         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1043
1044 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
1045
1046         * Integrate Haifa instruction scheduler.
1047         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
1048         to sched with $(SCHED_CFLAGS.
1049         * configure.in: Handle --enable-haifa.
1050         * configure: Rebuilt.
1051         * flags.h: Add new flags for haifa instruction scheduler.
1052         * genattrtab.c (expand_units): For haifa, don't subtract one
1053         when computing blockage.
1054         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1055         (flag_schedule_speculative): Ditto.
1056         (flag_schedule_speculative_load): Ditto.
1057         (flag_schedule_speculative_load_dangerous): Ditto.
1058         (flag_schedule_reverse_before_reload): Ditto.
1059         (flag_schedule_reverse_after_reload): Ditto.
1060         (flag_branch_on_count_reg): Ditto.
1061         (f_options): Add Haifa switches.
1062         (main): Turn off some Haifa options if appropriate macro is
1063         defined.  Process Haifa switches.
1064         * unroll.c (iteration_info): No longer static, since Haifa
1065         scheduler uses it.
1066         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1067         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1068         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1069         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1070         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1071         storage for the Haifa scheduler.
1072         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1073         LABEL_NEXTREF.
1074         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1075         are defined, call analyze_loop_iterations and insert_bct to use
1076         countdown loops.
1077         (record_giv): Refine test for jumps out of loops if HAIFA is
1078         defined.
1079         (analyze_loop_iterations): New function to identify if we can use
1080         a countdown loop.
1081         (insert_bct): Insert countdown loop.
1082         (instrument_loop_bct): Low level code to insert countdown loop.
1083         (loop_number): Calculate UID of loop.
1084         (indirect_jump_in_function_p): Return true if an indirect jump is
1085         in the function.
1086         (is_power_of_2): Return true if value is a power of 2.
1087         (is_conditional_branch): Return true if insn is a conditional
1088         jump.
1089         (fix_bct_param): Process -fbct-{min,max}-N switches.
1090         (check_bct_param): Return true if loop should be instrumented.
1091         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1092         (loop_optimize): Initialize.
1093         (get_condition_for_loop): Ditto.
1094         * loop.c (strength_reduce): Inside of code that uses #ifdef
1095         HAVE_decrement_and_branch_on_count code, test it to make sure the
1096         condition is true.
1097         (instrument_loop_bct): Ditto.
1098         * haifa-sched.c: New file.
1099
1100
1101         * Integrate regmove pass.
1102         * Makefile.in (OBJS): Add regmove.o
1103         (regmove.o): Add dependencies.
1104         * flow.c (find_use_as_address): No longer static.
1105         * rtl.h (find_use_as_address): Declare.
1106         * toplev.c (regmove_dump, flag_regmove): Define.
1107         (f_options): Add -fregmove.
1108         (regmove_dump_file, regmove_time): Define.
1109         (fatal_insn): Close the regmove dump file.
1110         (compile_file): Initialize regmove_time; open/close the regmove dump
1111         file as needed.  Print regmove time as needed.
1112         (rest_of_compilation): Run regmove pass if requested, dump
1113         RTL after regmove if requested.
1114         (main): If -O2 or more, turn on regmove.  Handle dump switches.
1115         * regmove.c: New file.
1116
1117 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
1118
1119         * Integrate tlink patch from jason@cygnus.com
1120         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1121         (process_command): Increment n_switches for them.  Don't discard
1122         their args.  Validate them.
1123         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1124         From Rohan Lenard.
1125         (process_command): Set include_prefixes from COMPILER_PATH.
1126         (main): Set COLLECT_GCC_OPTIONS sooner.
1127         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1128         * tlink.c, hash.c, hash.h: New files.
1129         * Makefile.in (USE_COLLECT2): Always use collect2.
1130         (collect2): Depend on and link in hash.o and tlink.o.
1131         (tlink.o, hash.o): Add dependencies.
1132
1133 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
1134
1135         * Integrate alias analysis changes from jfc@mit.edu
1136         * Makefile.in (OBJS): Add alias.o
1137         (alias.o): Add dependencies.
1138         * alias.c: New file.
1139         * sched.c: Remove alias analysis code.  It lives in alias.c now.
1140         (sched_analyze_2): Add new arguments to true_dependence.
1141         (schedule_insns): Always call init_alias_analysis.
1142         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1143         mark return value from such functions as a pointer and keep track of
1144         them for alias analysis.  If a return value from a function is a
1145         pointer, mark it as such.
1146         * combine.c (distribute_notes): Handle REG_NOALIAS.
1147         * cse.c (struct write_data): Delete.  No longer needed.
1148         (invalidate): Don't call set_nonvarying_address_components anymore.
1149         Use true_dependence to decide if an entry should be removed from
1150         the hash table.
1151         (invalidate_memory): Remove WRITES argument, simplify appropriately.
1152         Fix all callers.
1153         (note_mem_written): Similarly for WRITE_PTR argument.
1154         (invalidate_from_clobbers): Similarly for W argument.
1155         (invalidate_for_call): Remove memory elements from the hash table.
1156         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1157         (cse_rtx_varies_p): New function.  Derived from old
1158         cse_rtx_addr_varies_p.
1159         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1160         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
1161         pointer if PUSH_ROUNDING is defined.  No longer need to call
1162         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1163         (skipped_writes_memory): Remove variable.
1164         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1165         (invalidate_skipped_block): Simplify for new alias analysis code.
1166         (cse_set_around_loop): Likewise.
1167         (cse_main): Call init_alias_analysis.
1168         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1169         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1170         (f_options): Add new alias checking arguments.
1171         (main): Set flag_alias_check when optimizing.
1172         * local_alloc (validate_equiv_mem_from_store): Add new arguments
1173         to true_dependence.
1174         (memref_referenced_p): Likewise.
1175         * loop.c (NUM_STORES): Increase to 30.
1176         (prescan_loop): Only non-constant calls set unknown_address_altered.
1177         (invariant_p): Add new arguments to true_dependence.
1178         (record_giv): Initialize unrolled and shared fields.
1179         (emit_iv_add_mult): Call record_base_value as needed.
1180         * loop.h (struct induction): Add unrolled and shared fields.
1181         * unroll.c  (unroll_loop): Call record_base_value as needed.
1182         (copy_loop_body): Likewise.
1183         (final_biv_value): Likewise.
1184         (final_giv_value): Likewise.
1185         (find_splittable_regs): Likewise.  Only create one new pseudo
1186         if we have multiple address GIVs that were combined with the same
1187         dst_reg GIV.  Note when a new register is created due to unrolling.
1188         * rtl.c (reg_note_name): Add REG_NOALIAS.
1189         * rtl.h (enum reg_note): Similarly.
1190         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1191         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1192         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1193         (true_dependence, read_dependence, anti_dependence): Likewise.
1194         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1195         (mark_user_reg, mark_reg_pointer): Likewise.
1196
1197
1198         * Integrate reload bugfix from Wilon which enables the PA port
1199         to bootstrap again.
1200         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1201         OPERAND_ADDRESS when computing how many registers an insn needs.
1202         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1203         conflict.
1204         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1205         OPADDR_ADDR reload.
1206         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1207         in reload_reg_use_in_op_addr do not reach the end.
1208         do not reach the end.
1209         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1210         RELOAD_FOR_OPERAND_ADDRESS.
1211
1212 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
1213
1214         * egcs project officially starts.
1215