gcc/ChangeLog

   1 Tue Sep 16 09:18:52 1997  Jason Merrill  (jason@cygnus.com)
   2
   3         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
   4         again for the slot after we give it RTL.
   5
   6 Tue Sep 16 00:13:20 1997  Nick Clifton  <nickc@cygnus.com>
   7
   8         * v850.c (register_is_ok_for_epilogue,
   9         pattern_is_ok_for_epilogue, construct_restore_jr,
  10         pattern_is_ok_for_prologue, construct_save_jarl): New functions.
  11
  12         * v850.h (pattern_is_ok_for_prologue,
  13         pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
  14         predicates.
  15
  16         * v850.md: Replace prologue and epilogue patterns with a
  17         match_parallel pattern.
  18
  19         * v850.c (output_move_single_unsigned): Cope with zero
  20         extending and moving between registers at the same time.
  21
  22 Mon Sep 15 22:53:01 1997  Jeffrey A Law  (law@cygnus.com)
  23
  24         * aclocal.m4: Add replacement for AC_PROG_INSTALL.
  25         * configure.in: Use EGCS_PROG_INSTALL.
  26
  27 Mon Sep 15 22:40:55 1997  Jim Wilson  (wilson@cygnus.com)
  28
  29         * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
  30         extern inline function.
  31
  32 Mon Sep 15 22:40:55 1997  Richard Henderson  (rth@cygnus.com)
  33
  34         * dwarf2out.c (reg_loc_descriptor): Fix prototype.
  35         (concat_loc_descriptor): New function.
  36         (loc_descriptor): Call it.
  37         (add_AT_location_description): Also elide the descriptor if both
  38         halves of a CONCAT are pseudos.
  39         (add_location_or_const_value_attribute): Recognize CONCAT too.
  40
  41 Mon Sep 15 15:24:00 1997  Richard Henderson  <rth@cygnus.com>
  42
  43         * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
  44
  45         * alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
  46         out-or-range reg_offset.
  47         (output_epilog): Likewise.
  48
  49 Mon Sep 15 15:39:26 1997  Jeffrey A Law  (law@cygnus.com)
  50
  51         * cse.c (simplify_relational_operation): If MODE specifies a
  52         mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
  53         is derived from the sign bit of the low word.
  54
  55 Mon Sep 15 11:43:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
  56
  57         Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
  58
  59         * dwarf2.h: Add DW_CFA_GNU_args_size.
  60         * frame.c (execute_cfa_insn): Likewise.
  61         * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
  62         (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
  63         (dwarf2out_frame_debug): If this isn't a prologue or epilogue
  64         insn, hand it off to dwarf2out_stack_adjust.
  65         (dwarf2out_begin_prologue): Initialize args_size.
  66         * frame.h (struct frame_state): Add args_size.
  67         * libgcc2.c (__throw): Use args_size.
  68         * final.c (final_scan_insn): If we push args, hand off all insns
  69         to dwarf2out_frame_debug.
  70         * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
  71
  72         * dwarf2out.c dwarf2out_frame_debug): Fix typo.
  73         Handle epilogue restore of SP from FP.
  74         * emit-rtl.c (gen_sequence): Still generate a sequence if the
  75         lone insn has RTX_FRAME_RELATED_P set.
  76
  77         * frame.c (extract_cie_info): Handle "e" augmentation.
  78         * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
  79         absence of UNALIGNED_*_ASM_OP.
  80         (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
  81         (output_call_frame_info): Use "e" instead of "z" for augmentation.
  82         Don't emit augmentation fields length.
  83         (dwarf2out_do_frame): Move outside of #ifdefs.
  84         * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
  85         opcodes.
  86
  87         * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
  88         * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
  89         * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
  90         * sparc/sun4gas.h: New file.
  91         * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
  92
  93         * collect2.c (write_c_file_stat, write_c_file_glob): Declare
  94         __register_frame_table and __deregister_frame.
  95
  96 1997-09-15  Brendan Kehoe  <brendan@cygnus.com>
  97
  98         * except.c (find_exception_handler_labels): Use xmalloc instead of
  99         alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
 100         in some cases.
 101
 102 Sun Sep 14 21:01:23 1997  Jeffrey A Law  (law@cygnus.com)
 103
 104         * Makefile.in: Various changes to build info files
 105         in the object tree rather than the source tree.
 106
 107 Sun Sep 14 12:24:30 1997  Jeffrey A Law  (law@cygnus.com)
 108
 109         * fixinc.math: New file to fix math.h on some systems.
 110         * configure.in (freebsd, netbsd): Use fixinc.math on these
 111         systems.
 112         * configure: Rebuilt.
 113
 114 Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
 115
 116         * regmove.c (regmove_optimize): If we end up moving the
 117         original insn due to lifetime overlaps, make sure to move
 118         REG_NOTES too.
 119
 120 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 121
 122         * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
 123
 124 Sat Sep 13 12:57:26 1997  Jeffrey A Law  (law@cygnus.com)
 125
 126         * haifa-sched.c (add_branch_dependences): Make each insn in
 127         a SCHED_GROUP_P block explicitly depend on the previous insn.
 128
 129 Fri Sep 12 13:49:58 1997  Jason Merrill  <jason@yorick.cygnus.com>
 130
 131         * except.h: Prototype dwarf2 hooks.
 132         * expr.c: Adjust.
 133
 134 Thu Sep 11 17:43:55 1997  Jim Wilson  <wilson@cygnus.com>
 135
 136         * configure.in (native_prefix): Delete.
 137         (mips-dec-netbsd): Don't set prefix.
 138         (*linux*): Don't set prefix.
 139
 140 Thu Sep 11 15:48:32 1997  Fred Fish  <fnf@ninemoons.com>
 141
 142         * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
 143         defined.  If not defined, include <sys/varargs.h> if
 144         HAVE_SYS_VARARGS_H is defined.
 145         * configure.in: Test for varargs.h and sys/varargs.h.
 146         * configure: Regenerate with autoconf.
 147         * config.in: Regenerate with autoheader.
 148
 149         * cpplib.c (quote_string): Cast first arg of sprintf call
 150         from "unsigned char *" to "char *".
 151         (output_line_command): Ditto.
 152         (macroexpand): Ditto.
 153         (do_line): Cast atoi arg from "unsigned char *" to "char *".
 154
 155 Wed Sep 10 21:37:30 1997  Jeffrey A Law  (law@cygnus.com)
 156
 157         * version.c: Bump for snapshot.
 158
 159         * Makefile.in (compare): Exit with nonzero status if there
 160         are comparison failures.  Note which files failed the
 161         comparison test in .bad_compare.
 162
 163 Wed Sep 10 17:05:46 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 164
 165         * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
 166
 167 Wed Sep 10 16:37:28 1997  Fred Fish  <fnf@ninemoons.com>
 168
 169         * Makefile.in (LN, LN_S): New macros, use where appropriate.
 170         * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
 171         * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
 172         * configure: Regenerated.
 173
 174 Thu Sep 11 11:09:43 1997  Jeffrey A Law  (law@cygnus.com)
 175
 176         * loop.c (strength_reduce): Fix typo.
 177
 178 Wed Sep 10 16:01:15 1997  Jim Wilson  <wilson@cygnus.com>
 179
 180         * m88k/m88k.c (struct option): Rename to struct options.
 181         * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
 182         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
 183         * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
 184         __DOLPHIN__ or sysV88.
 185
 186 Wed Sep 10 14:58:40 1997  Jim Wilson  <wilson@cygnus.com>
 187
 188         * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
 189         create new subreg.
 190
 191 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 192
 193         * config.sub: Accept 'amigados' for backward compatability.
 194
 195 Wed Sep 10 14:05:08 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 196
 197         * Makefile.in (testsuite/site.exp): New target.
 198         (check-gcc, check-g++): Depend on testsuite/site.exp.
 199         Don't stop for failure.
 200
 201 Wed Sep 10 12:59:57 1997  Jason Merrill  <jason@yorick.cygnus.com>
 202
 203         * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
 204         if DWARF2_UNWIND_INFO.
 205
 206 Wed Sep 10 11:49:20 1997  Jason Merrill  <jason@yorick.cygnus.com>
 207
 208         Add support for exception handling using DWARF 2 frame unwind info.
 209         Currently works on SPARC and MIPS, and almost on x86.
 210
 211         * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
 212         next_stack_level, in_reg_window): Helper fns.
 213         (__throw): Implement for DWARF2_UNWIND_INFO.
 214
 215         * expr.c (expand_builtin): Handle builtins used by __throw.
 216         * tree.h (enum built_in_function): Add builtins used by __throw.
 217         * c-decl.c (init_decl_processing): Declare builtins used by __throw.
 218         * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
 219         * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
 220         (expand_builtin_extract_return_addr): Likewise.
 221         (expand_builtin_frob_return_addr): Likewise.
 222         (expand_builtin_set_return_addr_reg): Likewise.
 223         (expand_builtin_eh_stub): Likewise.
 224         (expand_builtin_set_eh_regs): Likewise.
 225         (eh_regs): Choose two call-clobbered registers for passing back values.
 226
 227         * frame.c, frame.h: New files for parsing dwarf 2 frame info.
 228         * Makefile.in (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
 229         (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
 230         (stmp-multilib): Likewise.
 231         ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
 232
 233         * except.c: #include "defaults.h".
 234         (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
 235         (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
 236         (register_exception_table_p): New fn.
 237         (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
 238         (end_eh_unwinder): Likewise.
 239
 240         * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
 241         call __register_frame and __deregister_frame as needed.
 242         * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
 243         * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
 244         EH_FRAME_SECTION_ASM_OP.
 245         * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
 246         * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
 247         (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
 248
 249         * dwarf2out.c (output_call_frame_info): If no support for
 250         EXCEPTION_SECTION, mark the start of the frame info with a
 251         collectable tag.
 252         * collect2.c (frame_tables): New list.
 253         (is_ctor_dtor): Recognise frame entries.
 254         (scan_prog_file): Likewise.
 255         (main): Pass -fno-exceptions to sub-compile.  Also do collection
 256         if there are any frame entries.
 257         (write_c_file_stat): Call __register_frame_table and
 258         __deregister_frame as needed.
 259         (write_c_file_glob): Likewise.
 260
 261         * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
 262         Also require unaligned reloc support.
 263         * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
 264         UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
 265         * sparc/sysv4.h: Not here.
 266
 267         * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
 268         * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
 269         (dwarf2out_finish): Don't call dwarf2out_frame_finish.
 270
 271         * libgcc2.c (L_eh): Reorganize, moving code shared by different
 272         EH implementations to the top.
 273         (find_exception_handler): Split out.  Start from 0.  Compare against
 274         end with >=.
 275         (__find_first_exception_table_match): Use it.
 276         * except.c (output_exception_table): Don't do anything if there's
 277         no table.  Don't output a first entry of zeroes.
 278         (eh_outer_context): Adjust properly.
 279         (add_eh_table_entry): Use xrealloc.
 280         * toplev.c (compile_file): Just call output_exception_table.
 281
 282 Wed Sep 10  11:30:36 1997  Jason Merrill  <jason@cygnus.com>
 283
 284         * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
 285
 286 Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 287
 288         * except.c (eh_outer_context): Do masking using expand_and.
 289
 290 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
 291
 292         Add port done awhile ago for the ARC cpu.
 293         * arc/arc.h: New file.
 294         * arc/arc.c: New file.
 295         * arc/arc.md: New file.
 296         * arc/initfini.c: New file.
 297         * arc/lib1funcs.asm: New file.
 298         * arc/t-arc: New file.
 299         * arc/xm-arc.h: New file.
 300         * ginclude/va-arc.h: New file.
 301         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
 302         * ginclude/varargs.h: Likewise.
 303         * Makefile.in (USER_H): Add va-arc.h.
 304         * configure.in (arc-*-elf*): Recognize.
 305         * longlong.h: Add ARC support.
 306
 307 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
 308
 309         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
 310         when clearing non-BLKmode data.
 311
 312 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 313
 314         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
 315         * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
 316
 317         * xm-m88k.h (USG): Only define if it hasn't already been defined.
 318
 319         * Makefile.in (risky-stage1): Delete gratutious whitespace.
 320
 321         * Makefile.in (clean): Delete libgcc1-test.
 322
 323         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
 324
 325 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
 326
 327         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
 328         template.
 329
 330 Tue Sep  9 09:50:02 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 331
 332         * dwarf2out.c (output_call_frame_info): Call named_section.
 333
 334 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
 335
 336         * haifa-sched.c (print_value): Fix last change.
 337
 338 Tue Sep  9 01:30:37 1997  Jason Merrill  <jason@yorick.cygnus.com>
 339
 340         * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
 341         write_symbols.
 342
 343 Mon Sep  8 16:32:43 1997  Jason Merrill  <jason@yorick.cygnus.com>
 344
 345         * mips.c (function_prologue): Set up the CFA when ABI_32.
 346
 347         * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
 348         for dwarf2 unwind info.
 349         (output_function_prologue, sparc_flat_output_function_prologue): Same.
 350
 351         * final.c (final_end_function): Check dwarf2out_do_frame instead
 352         of DWARF2_DEBUG for dwarf2 unwind info.
 353         (final_scan_insn): Likewise.
 354         (final_start_function): Likewise.  Initialize dwarf2 frame debug here.
 355         (final): Not here.
 356
 357         * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
 358         count > 0.
 359
 360         * varasm.c (exception_section): Check EXCEPTION_SECTION first.
 361
 362 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
 363
 364         * v850.h (ASM_SPEC): Pass on target processor.
 365         (CPP_PREDEFINES): Only define if not already specified.
 366         (TARGET_VERSION): Only define if not already specified.
 367         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
 368         processor.
 369         (EXTRA_SWITCHES): Extra entries in the switches array.
 370         (TARGET_DEFAULT): Set default target processor.
 371
 372 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
 373
 374         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
 375         cases, add %# and %/, and add : to make them into extended asms.
 376
 377 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
 378
 379         * alias.c (init_alias_analysis): Clean up incompatible pointer
 380         type warning in bzero.
 381         * regmove.c (regmove_optimize): Ditto.
 382         * haifa-sched.c (find_rgns): Ditto.
 383
 384         * haifa-sched.c (print_value): Clean up ptr->int cast
 385         warnings.
 386
 387 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
 388
 389         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
 390         * install.texi (Configurations): Ditto.
 391         * config.sub: Ditto.
 392
 393 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
 394
 395         * Makefile.in (sdbout.o): Depend on insn-config.h.
 396
 397 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
 398
 399         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
 400         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
 401
 402 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
 403
 404         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
 405         prologue insn, only the first elt is significant.
 406         (output_call_frame_info): For exception handling, always use 4-byte
 407         fields as specified by the dwarf2 spec.
 408         Don't skip trivial FDEs.
 409
 410 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
 411
 412         * version.c: Bump for snapshot.
 413
 414 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
 415
 416         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 417         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 418         when op1_is_pow2.
 419
 420 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 421
 422         * final.c (shorten_branches): During first pass, assume worst
 423         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 424
 425         * Makefile.in (distclean): Remove various things left around
 426         by running the testsuite.
 427
 428 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 429
 430         * configure.in (out_file): Emit definition to config.status in order
 431         to have a defined value for configure.lang.
 432         * configure: Re-built.
 433
 434 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 435
 436         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 437         for ld-new.
 438         * configure: Rebuilt.
 439
 440 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 441
 442         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 443
 444 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 445
 446         * sparc/sparc.md: Add ultrasparc scheduling support.
 447         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 448
 449 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 450
 451         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 452         as initial value for real_label_map.
 453         (copy_for_inline): Likewise.
 454
 455 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 456
 457         * sched.c (update_flow_info) When looking if to set found_split_dest
 458         or found_orig_dest, look at all parts of a PARALLEL.
 459         * haifa-sched.c (update_flow_info): Likewise.
 460
 461 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 462
 463         * v850: New directory for v850 port.
 464         * v850/lib1funcs.asm: New file.
 465         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 466         * ginclude/va-v850.h: New file.
 467         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 468         * configure.in (mn10200-*-*): New target.
 469         * configure: Rebuilt.
 470         * config.sub: Handle v850-elf.
 471         * Makefile.in (USER_H): Add va-mn10200.h.
 472         * invoke.texi: Document v850 stuff.
 473
 474 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 475
 476         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 477         has integer TYPE_{MAX,MIN}_VALUE before using them.
 478
 479         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 480         __HPUX_ASM__ versions.
 481
 482 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 483
 484         * install.sh: Delete duplicate install script.
 485
 486 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 487
 488         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 489         computed goto which sets the same stack register.
 490
 491         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 492         destination are both on the regstack.
 493         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 494
 495 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 496
 497         * mips.md (nonlocal_goto_receiver): Define.
 498
 499         * profile.c (output_arc_profiler): Check next_insert_after for non
 500         NULL before deferencing it.
 501
 502         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 503
 504 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 505
 506         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 507
 508 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 509
 510         * toplev.c (rest_of_compilation): For passes starting with
 511         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 512
 513         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 514         file.
 515
 516         * flow.c (print_rtl_with_bb): Print which insns start and end
 517         basic blocks.  For the start of a basic block, also print the live
 518         information.
 519
 520 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 521
 522         * toplev.c (main): Change #elif to #else/#ifdef
 523
 524         * tlink.c: Include ctype.h.
 525         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 526
 527 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 528
 529         * bitmap.c: Conditionally include stdlib.h.
 530         (free): Provide a declaration if NEED_DECLARATION_FREE.
 531
 532 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 533
 534         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 535
 536 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 537
 538         * profile.c (output_arc_profiler): Verify next_insert_after is an
 539         INSN before and after skipping a stack pop.
 540
 541 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 542
 543         * final.c (shorten_branches): Don't count the lengths of deleted
 544         instructions.
 545
 546 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 547
 548         * version.c: Bump for snapshot.
 549
 550 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 551
 552         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 553         two bitmaps ANDed together.
 554         (bitmap_print): Declare.
 555
 556         * bitmap.c (function_obstack): Don't declare any more.
 557         (bitmap_obstack): Obstack for allocating links from.
 558         (bitmap_obstack_init): New static to say whether to initialize
 559         bitmap_obstack.
 560         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 561         (bitmap_release_memory): Free all memory allocated from
 562         bitmap_obstack.
 563
 564         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 565         EXECUTE_IF_AND_IN_BITMAP.
 566
 567 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 568
 569         * alias.c (true_dependence): Address with AND can alias scalars.
 570         (anti_dependence, output_dependence): Likewise.
 571
 572         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 573
 574 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 575
 576         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 577           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 578           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 579           definitions.  Use -qrtems instead of -mrtems.
 580
 581 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 582
 583         * xm-sco5.h (sys_siglist): Define.
 584         (SYS_SIGLIST_DECLARED): Likewise.
 585
 586 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 587
 588         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 589
 590 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 591
 592         * except.c (eh_outer_context): Expand masking operation using
 593         expand_binop.
 594
 595 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 596
 597         * alpha.md (floatdisf2-1): New pattern.
 598
 599 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 600
 601         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 602         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 603         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 604         * gcc.texi: Note that if you define sys_siglist that you should
 605         also define SYS_SIGLIST_DECLARED.
 606
 607         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 608         are relative to the next instruction, not the current instruction.
 609
 610 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 611
 612         * local-alloc.c (contains_replace_regs): New function.
 613         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 614         verify that there is no existing REG_EQUIV note, and add a call to
 615         contains_place_regs.
 616
 617 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 618
 619         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 620         (STARTFILE_SPEC): Always use crtbegin.o%s
 621         (ENDFILE_SPEC): Always use crtend.o%s.
 622
 623 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 624
 625         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 626         is passed in.
 627         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 628         SFmode for 64 bit hosts.
 629
 630 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 631
 632         * fixincludes: Permits spaces between # and define.  Discard C++
 633         comments in sys/pci.h on HP/UX 10.20.
 634
 635 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 636
 637         * version.c: Bump for snapshot.
 638
 639         * pa.c (restore_unscaled_index_insn_codes): New function.
 640         (record_unscaled_index_insn_codes): Likewise.
 641         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 642         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 643         (pa_reorg): Call record_unscaled_index_insn_codes.
 644
 645         * haifa-sched.c (move_insn): Handle notes correctly for insns
 646         with SCHED_GROUP_P set.
 647
 648 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 649
 650         * alpha/xm-linux.h (USE_BFD): Undef before define.
 651
 652 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 653
 654         * cse.c (cse_insn): Don't record BLKmode values.
 655
 656 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 657
 658         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 659
 660 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 661
 662         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 663         * collect2.c (sys_errlist): Likewise.
 664         * cpplib.c (sys_errlist): Likewise.
 665         * gcc.c (sys_errlist): Likewise.
 666         * protoize (sys_errlist): Likewise.
 667         * configure.in: Check for strerror.
 668         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 669         * xm-gnu.h (HAVE_STRERROR): Likewise.
 670         * xm-linux.h (HAVE_STRERROR): Likewise.
 671         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 672         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 673         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 674         * xm-dos.h (HAVE_STRERROR): Likewise.
 675         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 676         * xm-pa.h (HAVE_STRERROR): Likewise.
 677         * xm-papro.h (HAVE_STRERROR): Likewise.
 678         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 679         * configure, config.in: Rebuilt.
 680
 681         * Makefile.in: Add several missing "else true" clauses.
 682
 683         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 684         * mips-tfile.c: Likewise.
 685         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 686         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 687         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 688         * configure.in: Check for sys_siglist declaration.
 689         * configure, config.in: Rebuilt.
 690
 691 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 692
 693         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 694         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 695         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 696         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 697         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 698         macro EXTRA_SUBTARGET_SWITCHES.
 699         * configure.in (sh*-*-rtems*): New target.
 700         * sh/rtems.h: New file.
 701         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 702         * configure: Rebuilt.
 703
 704 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 705
 706         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 707
 708 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 709
 710         * rs6000.md: Make DF fused-add operations pay attention to
 711         -mno-fused-add.
 712
 713 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 714
 715         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 716
 717 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 718
 719         * pa.md (reload_peepholes): Make sure operand is a REG before
 720         examining REGNO.  Allow general registers too.
 721
 722 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 723
 724         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 725
 726 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 727
 728         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 729         to reallocate abbrev_die_table.
 730
 731 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 732
 733         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 734
 735 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 736
 737         * Makefile.in (config.status): Depend on version.c
 738
 739         * expr.h (insn_gen_function): Reenable prototype.
 740
 741         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 742         first parameter.
 743
 744 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 745
 746         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 747
 748 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 749
 750         * version.c: Bump for latest snapshot.
 751
 752         * bc-optab.c: Conditionally include stdlib.h.
 753         (free): Provide a declaration if NEED_DECLARATION_FREE.
 754         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 755         * rtl.h (free): Remove declaration.
 756         * tree.h (free): Remvoe declaration.
 757
 758         * configure: Rebuilt.
 759
 760 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 761
 762         * flags.h (flag_move_all_movables): Declare.
 763         (flag_reduce_all_givs): Likewise.
 764         * loop.c (move_movables): Handle flag_move_all_movables.
 765         (strength_reduce): Handle flag_reduce_all_givs.
 766         * toplev.c (flag_move_all_movables): Define.
 767         (flag_reduce_all_givs): Likewise.
 768         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 769         * invoke.texi: Document new options, including alias stuff that
 770         wasn't included last time.
 771
 772 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 773
 774         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 775         * t-mn10200: Ditto.
 776         * t-vxsparc: Ditto.
 777         * t-vxworks68: Ditto.
 778         * t-vxworks960: Ditto.
 779         * t-vx29k: Ditto.
 780
 781 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 782
 783         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 784         if not already defined, and USE_C_ALLOCA not defined.
 785
 786 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 787
 788         * config.guess: Replace with script that uses ../config.guess.
 789
 790         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 791         if USE_GNULIBC_1 is not defined.
 792
 793 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 794
 795         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 796         * config.guess: Recognize alpha-linux-gnulibc1.
 797         * configure.in (alpha-*-linux-gnulibc1): New target.
 798         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 799
 800 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 801
 802         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 803         last change.
 804
 805 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 806
 807         * loop.c (combine_movables): Earlier insns don't match later ones.
 808
 809 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 810
 811         * config/linux.h (CC1_SPEC): Define it only if not defined.
 812
 813         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 814         <linux.h>
 815
 816         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 817         USE_GNULIBC_1 is not defined.
 818
 819         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 820
 821         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 822         as 1 if USE_GNULIBC_1 is not defined.
 823
 824 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 825
 826         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 827         to be something other than a REG.
 828         * function.c (expand_function_end): Fix current_function_return_rtx
 829         if it was a pseudo.
 830
 831         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 832         * x-netbsd: Likewise
 833         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 834         (INSTALL_HEADERS): Delete.
 835         * x-dguxbcs: Likewise.
 836         * x-hp3bsd44: Likewise
 837         * x-pa: Likewise.
 838
 839 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 840
 841         * i386.md (pop): pop increments the stack pointer.
 842         (prologue_set_stack_ptr): New pattern.
 843         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 844         instead of subsi3.
 845
 846 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 847
 848         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 849         address where an offsettable address is required.
 850
 851 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 852
 853         * loop.c (check_final_value): Don't miss a biv increment in a
 854         parallel.
 855
 856 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 857
 858         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 859         TYPE_DECL_IS_STUB instead of DECL_NAME.
 860
 861 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 862
 863         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 864
 865 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 866
 867         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 868
 869 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 870
 871         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 872         (find_post_sched_live): Likewise.
 873
 874         * haifa-sched.c (schedule_block): Remove old code to get arguments
 875         from hard regs into pseudos early.
 876
 877 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 878
 879         * version.c: Bump for new snapshot.
 880
 881         * local-alloc.c (update_equiv_regs): All the target to reject
 882         promotion of some REG_EQUAL to REG_EQUIV notes.
 883         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 884
 885         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 886         secondary reloads.
 887
 888         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 889         store of the argument registers.
 890
 891 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 892
 893         * fold-const.c (multiple_of_p): New function.
 894         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 895
 896 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 897
 898         * expr.h (insn_gen_function): Temporarily remove prototype.
 899
 900 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 901
 902         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 903         filenames.  Use sed to extract base filename for install.
 904
 905 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 906
 907         * unroll.c (find_splittable_givs): Only share if two givs have the
 908         same add and multiply values.
 909
 910 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 911
 912         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 913         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 914
 915 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 916
 917         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 918         around branch tables.
 919         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 920         and .end_brtab directives if TARGET_GAS.
 921
 922 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 923
 924         * alias.c (true_dependence): Pass x_addr not x to varies.
 925
 926         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 927         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 928         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 929         declarations.
 930         * config.in, configure: Regenerate.
 931
 932 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 933
 934         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 935         LO_SUM.
 936         (record_set): Handle LO_SUM like PLUS.
 937         (init_alias_analysis): When following chains of base addresses,
 938         do not stop on reaching a hard register.
 939
 940 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 941
 942         * version.c: Bump for new snapshot.
 943
 944 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 945
 946         * alpha.h (ARCH_ASM_FILE_START): Define.
 947         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 948         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 949
 950 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 951
 952         * Makefile.in (install-common): Put gcov comment at start of line.
 953
 954 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 955
 956         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 957         array, simplify entries for hard registers too.
 958
 959 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 960
 961         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 962         list.
 963
 964 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 965
 966         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 967         block_stack before dereferencing it.
 968
 969 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 970
 971         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 972
 973 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 974
 975         * cplus-dem.c: Add 'extern' to prepends_underscore.
 976
 977 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 978
 979         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 980         (get_issue_rate): Delete.
 981         * pa.h (ISSUE_RATE): Define.
 982
 983         * configure.in: Turn on haifa by default for the PA.
 984         * configure: Rebuilt.
 985         * pa.c (override_options): Accept -mschedule=7200 option.
 986         (pa_adjust_cost): No longer need to scale costs for newer
 987         processors.
 988         * pa.h (enum processor_type): Add PROCESSOR_7200.
 989         * pa.md: Revamp scheduling parameters to work better with
 990         haifa.  Add scheduling parameters for the 7200.
 991
 992         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
 993         insns too.
 994         (schedule_block): When adjusting basic_block_{head,end}, account
 995         for movement of SCHED_GROUP_P insns too.
 996
 997         * haifa-sched.c (debug_dependencies): Fix thinko.
 998
 999         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1000         (site.exp, check, check-g++, check-gcc): New targets.
1001
1002         * haifa-sched.c: Make lots of variables static.
1003
1004 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
1005
1006         * expr.h, real.h: Finish prototyping.
1007
1008 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
1009
1010         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1011         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1012         * reload1.c: Undo bugfix from Aug 11.
1013
1014 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
1015
1016         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1017         quotes around the name.
1018         * configure: Regenerate.
1019
1020 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
1021
1022         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1023
1024 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
1025
1026         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1027         to sub-makes to avoid building more passes than the user might have
1028         requested on the command line.
1029
1030 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
1031
1032         * configure.in: Expurgate `broken_install' (install is
1033         autoconfed).
1034
1035         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1036         relevant).
1037
1038 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
1039
1040         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1041         functions and declarations.
1042         (analyze_loop_iterations): Use condjump_p.
1043         (insert_bct): Likewise.  Use exact_log2.
1044
1045 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
1046
1047         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1048         (schedule_region): Likewise.
1049         (schedule_insns): Likewise.
1050
1051         * PROJECTS: Update with Haifa stuff.
1052
1053 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
1054
1055         * version.c: Change the version string to look like:
1056         egcs-2.90.00 970814 (gcc2-970802 experimental).
1057
1058         * loop.c (is_conditional_branch): Make definition match declaration.
1059
1060         * gcc.c: Take out experimental snapshot warning message.
1061
1062 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
1063
1064         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1065         print out the names of the notes.  Print out the name of the insn
1066         that is not a note, and not an {,CALL_,JUMP_}INSN.
1067
1068 Wed Aug 13 17:32:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
1069
1070         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1071         again for the slot after we give it RTL.
1072
1073 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
1074
1075         * configure.in (haifa configury): Fix typo.
1076         * configure: Regenerate.
1077
1078 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
1079
1080         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1081
1082         * gcc.info*: Rebuilt.
1083
1084         * COPYING.g77, README.g77: New files.
1085         * real.c (ereal_unto_float, ereal_unto_double): New functions.
1086         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1087         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1088
1089 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
1090
1091         * Integrate Haifa instruction scheduler.
1092         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
1093         to sched with $(SCHED_CFLAGS.
1094         * configure.in: Handle --enable-haifa.
1095         * configure: Rebuilt.
1096         * flags.h: Add new flags for haifa instruction scheduler.
1097         * genattrtab.c (expand_units): For haifa, don't subtract one
1098         when computing blockage.
1099         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1100         (flag_schedule_speculative): Ditto.
1101         (flag_schedule_speculative_load): Ditto.
1102         (flag_schedule_speculative_load_dangerous): Ditto.
1103         (flag_schedule_reverse_before_reload): Ditto.
1104         (flag_schedule_reverse_after_reload): Ditto.
1105         (flag_branch_on_count_reg): Ditto.
1106         (f_options): Add Haifa switches.
1107         (main): Turn off some Haifa options if appropriate macro is
1108         defined.  Process Haifa switches.
1109         * unroll.c (iteration_info): No longer static, since Haifa
1110         scheduler uses it.
1111         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1112         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1113         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1114         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1115         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1116         storage for the Haifa scheduler.
1117         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1118         LABEL_NEXTREF.
1119         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1120         are defined, call analyze_loop_iterations and insert_bct to use
1121         countdown loops.
1122         (record_giv): Refine test for jumps out of loops if HAIFA is
1123         defined.
1124         (analyze_loop_iterations): New function to identify if we can use
1125         a countdown loop.
1126         (insert_bct): Insert countdown loop.
1127         (instrument_loop_bct): Low level code to insert countdown loop.
1128         (loop_number): Calculate UID of loop.
1129         (indirect_jump_in_function_p): Return true if an indirect jump is
1130         in the function.
1131         (is_power_of_2): Return true if value is a power of 2.
1132         (is_conditional_branch): Return true if insn is a conditional
1133         jump.
1134         (fix_bct_param): Process -fbct-{min,max}-N switches.
1135         (check_bct_param): Return true if loop should be instrumented.
1136         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1137         (loop_optimize): Initialize.
1138         (get_condition_for_loop): Ditto.
1139         * loop.c (strength_reduce): Inside of code that uses #ifdef
1140         HAVE_decrement_and_branch_on_count code, test it to make sure the
1141         condition is true.
1142         (instrument_loop_bct): Ditto.
1143         * haifa-sched.c: New file.
1144
1145
1146         * Integrate regmove pass.
1147         * Makefile.in (OBJS): Add regmove.o
1148         (regmove.o): Add dependencies.
1149         * flow.c (find_use_as_address): No longer static.
1150         * rtl.h (find_use_as_address): Declare.
1151         * toplev.c (regmove_dump, flag_regmove): Define.
1152         (f_options): Add -fregmove.
1153         (regmove_dump_file, regmove_time): Define.
1154         (fatal_insn): Close the regmove dump file.
1155         (compile_file): Initialize regmove_time; open/close the regmove dump
1156         file as needed.  Print regmove time as needed.
1157         (rest_of_compilation): Run regmove pass if requested, dump
1158         RTL after regmove if requested.
1159         (main): If -O2 or more, turn on regmove.  Handle dump switches.
1160         * regmove.c: New file.
1161
1162 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
1163
1164         * Integrate tlink patch from jason@cygnus.com
1165         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1166         (process_command): Increment n_switches for them.  Don't discard
1167         their args.  Validate them.
1168         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1169         From Rohan Lenard.
1170         (process_command): Set include_prefixes from COMPILER_PATH.
1171         (main): Set COLLECT_GCC_OPTIONS sooner.
1172         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1173         * tlink.c, hash.c, hash.h: New files.
1174         * Makefile.in (USE_COLLECT2): Always use collect2.
1175         (collect2): Depend on and link in hash.o and tlink.o.
1176         (tlink.o, hash.o): Add dependencies.
1177
1178 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
1179
1180         * Integrate alias analysis changes from jfc@mit.edu
1181         * Makefile.in (OBJS): Add alias.o
1182         (alias.o): Add dependencies.
1183         * alias.c: New file.
1184         * sched.c: Remove alias analysis code.  It lives in alias.c now.
1185         (sched_analyze_2): Add new arguments to true_dependence.
1186         (schedule_insns): Always call init_alias_analysis.
1187         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1188         mark return value from such functions as a pointer and keep track of
1189         them for alias analysis.  If a return value from a function is a
1190         pointer, mark it as such.
1191         * combine.c (distribute_notes): Handle REG_NOALIAS.
1192         * cse.c (struct write_data): Delete.  No longer needed.
1193         (invalidate): Don't call set_nonvarying_address_components anymore.
1194         Use true_dependence to decide if an entry should be removed from
1195         the hash table.
1196         (invalidate_memory): Remove WRITES argument, simplify appropriately.
1197         Fix all callers.
1198         (note_mem_written): Similarly for WRITE_PTR argument.
1199         (invalidate_from_clobbers): Similarly for W argument.
1200         (invalidate_for_call): Remove memory elements from the hash table.
1201         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1202         (cse_rtx_varies_p): New function.  Derived from old
1203         cse_rtx_addr_varies_p.
1204         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1205         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
1206         pointer if PUSH_ROUNDING is defined.  No longer need to call
1207         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1208         (skipped_writes_memory): Remove variable.
1209         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1210         (invalidate_skipped_block): Simplify for new alias analysis code.
1211         (cse_set_around_loop): Likewise.
1212         (cse_main): Call init_alias_analysis.
1213         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1214         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1215         (f_options): Add new alias checking arguments.
1216         (main): Set flag_alias_check when optimizing.
1217         * local_alloc (validate_equiv_mem_from_store): Add new arguments
1218         to true_dependence.
1219         (memref_referenced_p): Likewise.
1220         * loop.c (NUM_STORES): Increase to 30.
1221         (prescan_loop): Only non-constant calls set unknown_address_altered.
1222         (invariant_p): Add new arguments to true_dependence.
1223         (record_giv): Initialize unrolled and shared fields.
1224         (emit_iv_add_mult): Call record_base_value as needed.
1225         * loop.h (struct induction): Add unrolled and shared fields.
1226         * unroll.c  (unroll_loop): Call record_base_value as needed.
1227         (copy_loop_body): Likewise.
1228         (final_biv_value): Likewise.
1229         (final_giv_value): Likewise.
1230         (find_splittable_regs): Likewise.  Only create one new pseudo
1231         if we have multiple address GIVs that were combined with the same
1232         dst_reg GIV.  Note when a new register is created due to unrolling.
1233         * rtl.c (reg_note_name): Add REG_NOALIAS.
1234         * rtl.h (enum reg_note): Similarly.
1235         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1236         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1237         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1238         (true_dependence, read_dependence, anti_dependence): Likewise.
1239         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1240         (mark_user_reg, mark_reg_pointer): Likewise.
1241
1242
1243         * Integrate reload bugfix from Wilon which enables the PA port
1244         to bootstrap again.
1245         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1246         OPERAND_ADDRESS when computing how many registers an insn needs.
1247         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1248         conflict.
1249         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1250         OPADDR_ADDR reload.
1251         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1252         in reload_reg_use_in_op_addr do not reach the end.
1253         do not reach the end.
1254         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1255         RELOAD_FOR_OPERAND_ADDRESS.
1256
1257 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
1258
1259         * egcs project officially starts.
1260