gcc/ChangeLog

   1 Wed Sep 17 14:11:38 1997  Jeffrey A Law  (law@cygnus.com)
   2
   3         * v850.c (construct_save_jarl): Fix thinko in last change.
   4
   5 Wed Sep 17 09:53:07 1997  Jeffrey A Law  (law@cygnus.com)
   6
   7         * version.c: Bump for snapshot.
   8
   9 Tue Sep 16 14:22:36 1997  Jason Merrill  <jason@yorick.cygnus.com>
  10
  11         * libgcc2.c (find_exception_handler): Not found is -1.
  12
  13         * integrate.c (expand_inline_function): Move expand_start_bindings
  14         after expanding the arguments.
  15
  16 Tue Sep 16 11:13:46 1997  Jim Wilson  <wilson@cygnus.com>
  17
  18         * expr.c (expand_expr): Remove previous incorrect change.
  19         If target and slot has no DECL_RTL, then call mark_addressable
  20         again for the slot after we give it RTL.
  21
  22 Tue Sep 16 09:18:52 1997  Jason Merrill  (jason@cygnus.com)
  23
  24         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
  25         again for the slot after we give it RTL.
  26
  27 Tue Sep 16 00:13:20 1997  Nick Clifton  <nickc@cygnus.com>
  28
  29         * v850.c (register_is_ok_for_epilogue,
  30         pattern_is_ok_for_epilogue, construct_restore_jr,
  31         pattern_is_ok_for_prologue, construct_save_jarl): New functions.
  32
  33         * v850.h (pattern_is_ok_for_prologue,
  34         pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
  35         predicates.
  36
  37         * v850.md: Replace prologue and epilogue patterns with a
  38         match_parallel pattern.
  39
  40 Mon Sep 15 22:53:01 1997  Jeffrey A Law  (law@cygnus.com)
  41
  42         * aclocal.m4: Add replacement for AC_PROG_INSTALL.
  43         * configure.in: Use EGCS_PROG_INSTALL.
  44
  45 Mon Sep 15 22:40:55 1997  Jim Wilson  (wilson@cygnus.com)
  46
  47         * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
  48         extern inline function.
  49
  50 Mon Sep 15 22:40:55 1997  Richard Henderson  (rth@cygnus.com)
  51
  52         * dwarf2out.c (reg_loc_descriptor): Fix prototype.
  53         (concat_loc_descriptor): New function.
  54         (loc_descriptor): Call it.
  55         (add_AT_location_description): Also elide the descriptor if both
  56         halves of a CONCAT are pseudos.
  57         (add_location_or_const_value_attribute): Recognize CONCAT too.
  58
  59 Mon Sep 15 15:24:00 1997  Richard Henderson  <rth@cygnus.com>
  60
  61         * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
  62
  63         * alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
  64         out-or-range reg_offset.
  65         (output_epilog): Likewise.
  66
  67 Mon Sep 15 15:39:26 1997  Jeffrey A Law  (law@cygnus.com)
  68
  69         * cse.c (simplify_relational_operation): If MODE specifies a
  70         mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
  71         is derived from the sign bit of the low word.
  72
  73 Mon Sep 15 11:43:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
  74
  75         Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
  76
  77         * dwarf2.h: Add DW_CFA_GNU_args_size.
  78         * frame.c (execute_cfa_insn): Likewise.
  79         * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
  80         (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
  81         (dwarf2out_frame_debug): If this isn't a prologue or epilogue
  82         insn, hand it off to dwarf2out_stack_adjust.
  83         (dwarf2out_begin_prologue): Initialize args_size.
  84         * frame.h (struct frame_state): Add args_size.
  85         * libgcc2.c (__throw): Use args_size.
  86         * final.c (final_scan_insn): If we push args, hand off all insns
  87         to dwarf2out_frame_debug.
  88         * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
  89
  90         * dwarf2out.c dwarf2out_frame_debug): Fix typo.
  91         Handle epilogue restore of SP from FP.
  92         * emit-rtl.c (gen_sequence): Still generate a sequence if the
  93         lone insn has RTX_FRAME_RELATED_P set.
  94
  95         * frame.c (extract_cie_info): Handle "e" augmentation.
  96         * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
  97         absence of UNALIGNED_*_ASM_OP.
  98         (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
  99         (output_call_frame_info): Use "e" instead of "z" for augmentation.
 100         Don't emit augmentation fields length.
 101         (dwarf2out_do_frame): Move outside of #ifdefs.
 102         * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
 103         opcodes.
 104
 105         * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
 106         * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
 107         * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
 108         * sparc/sun4gas.h: New file.
 109         * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
 110
 111         * collect2.c (write_c_file_stat, write_c_file_glob): Declare
 112         __register_frame_table and __deregister_frame.
 113
 114 1997-09-15  Brendan Kehoe  <brendan@cygnus.com>
 115
 116         * except.c (find_exception_handler_labels): Use xmalloc instead of
 117         alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
 118         in some cases.
 119
 120 Sun Sep 14 21:01:23 1997  Jeffrey A Law  (law@cygnus.com)
 121
 122         * Makefile.in: Various changes to build info files
 123         in the object tree rather than the source tree.
 124
 125 Sun Sep 14 12:24:30 1997  Jeffrey A Law  (law@cygnus.com)
 126
 127         * fixinc.math: New file to fix math.h on some systems.
 128         * configure.in (freebsd, netbsd): Use fixinc.math on these
 129         systems.
 130         * configure: Rebuilt.
 131
 132 Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
 133
 134         * regmove.c (regmove_optimize): If we end up moving the
 135         original insn due to lifetime overlaps, make sure to move
 136         REG_NOTES too.
 137
 138 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 139
 140         * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
 141
 142 Sat Sep 13 12:57:26 1997  Jeffrey A Law  (law@cygnus.com)
 143
 144         * haifa-sched.c (add_branch_dependences): Make each insn in
 145         a SCHED_GROUP_P block explicitly depend on the previous insn.
 146
 147 Fri Sep 12 13:49:58 1997  Jason Merrill  <jason@yorick.cygnus.com>
 148
 149         * except.h: Prototype dwarf2 hooks.
 150         * expr.c: Adjust.
 151
 152 Thu Sep 11 17:43:55 1997  Jim Wilson  <wilson@cygnus.com>
 153
 154         * configure.in (native_prefix): Delete.
 155         (mips-dec-netbsd): Don't set prefix.
 156         (*linux*): Don't set prefix.
 157
 158 Thu Sep 11 15:48:32 1997  Fred Fish  <fnf@ninemoons.com>
 159
 160         * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
 161         defined.  If not defined, include <sys/varargs.h> if
 162         HAVE_SYS_VARARGS_H is defined.
 163         * configure.in: Test for varargs.h and sys/varargs.h.
 164         * configure: Regenerate with autoconf.
 165         * config.in: Regenerate with autoheader.
 166
 167         * cpplib.c (quote_string): Cast first arg of sprintf call
 168         from "unsigned char *" to "char *".
 169         (output_line_command): Ditto.
 170         (macroexpand): Ditto.
 171         (do_line): Cast atoi arg from "unsigned char *" to "char *".
 172
 173 Wed Sep 10 21:37:30 1997  Jeffrey A Law  (law@cygnus.com)
 174
 175         * version.c: Bump for snapshot.
 176
 177         * Makefile.in (compare): Exit with nonzero status if there
 178         are comparison failures.  Note which files failed the
 179         comparison test in .bad_compare.
 180
 181 Wed Sep 10 17:05:46 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 182
 183         * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
 184
 185 Wed Sep 10 16:37:28 1997  Fred Fish  <fnf@ninemoons.com>
 186
 187         * Makefile.in (LN, LN_S): New macros, use where appropriate.
 188         * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
 189         * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
 190         * configure: Regenerated.
 191
 192 Thu Sep 11 11:09:43 1997  Jeffrey A Law  (law@cygnus.com)
 193
 194         * loop.c (strength_reduce): Fix typo.
 195
 196 Wed Sep 10 16:01:15 1997  Jim Wilson  <wilson@cygnus.com>
 197
 198         * m88k/m88k.c (struct option): Rename to struct options.
 199         * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
 200         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
 201         * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
 202         __DOLPHIN__ or sysV88.
 203
 204 Wed Sep 10 14:58:40 1997  Jim Wilson  <wilson@cygnus.com>
 205
 206         * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
 207         create new subreg.
 208
 209 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 210
 211         * config.sub: Accept 'amigados' for backward compatability.
 212
 213 Wed Sep 10 14:05:08 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 214
 215         * Makefile.in (testsuite/site.exp): New target.
 216         (check-gcc, check-g++): Depend on testsuite/site.exp.
 217         Don't stop for failure.
 218
 219 Wed Sep 10 12:59:57 1997  Jason Merrill  <jason@yorick.cygnus.com>
 220
 221         * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
 222         if DWARF2_UNWIND_INFO.
 223
 224 Wed Sep 10 11:49:20 1997  Jason Merrill  <jason@yorick.cygnus.com>
 225
 226         Add support for exception handling using DWARF 2 frame unwind info.
 227         Currently works on SPARC and MIPS, and almost on x86.
 228
 229         * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
 230         next_stack_level, in_reg_window): Helper fns.
 231         (__throw): Implement for DWARF2_UNWIND_INFO.
 232
 233         * expr.c (expand_builtin): Handle builtins used by __throw.
 234         * tree.h (enum built_in_function): Add builtins used by __throw.
 235         * c-decl.c (init_decl_processing): Declare builtins used by __throw.
 236         * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
 237         * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
 238         (expand_builtin_extract_return_addr): Likewise.
 239         (expand_builtin_frob_return_addr): Likewise.
 240         (expand_builtin_set_return_addr_reg): Likewise.
 241         (expand_builtin_eh_stub): Likewise.
 242         (expand_builtin_set_eh_regs): Likewise.
 243         (eh_regs): Choose two call-clobbered registers for passing back values.
 244
 245         * frame.c, frame.h: New files for parsing dwarf 2 frame info.
 246         * Makefile.in (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
 247         (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
 248         (stmp-multilib): Likewise.
 249         ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
 250
 251         * except.c: #include "defaults.h".
 252         (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
 253         (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
 254         (register_exception_table_p): New fn.
 255         (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
 256         (end_eh_unwinder): Likewise.
 257
 258         * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
 259         call __register_frame and __deregister_frame as needed.
 260         * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
 261         * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
 262         EH_FRAME_SECTION_ASM_OP.
 263         * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
 264         * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
 265         (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
 266
 267         * dwarf2out.c (output_call_frame_info): If no support for
 268         EXCEPTION_SECTION, mark the start of the frame info with a
 269         collectable tag.
 270         * collect2.c (frame_tables): New list.
 271         (is_ctor_dtor): Recognise frame entries.
 272         (scan_prog_file): Likewise.
 273         (main): Pass -fno-exceptions to sub-compile.  Also do collection
 274         if there are any frame entries.
 275         (write_c_file_stat): Call __register_frame_table and
 276         __deregister_frame as needed.
 277         (write_c_file_glob): Likewise.
 278
 279         * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
 280         Also require unaligned reloc support.
 281         * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
 282         UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
 283         * sparc/sysv4.h: Not here.
 284
 285         * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
 286         * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
 287         (dwarf2out_finish): Don't call dwarf2out_frame_finish.
 288
 289         * libgcc2.c (L_eh): Reorganize, moving code shared by different
 290         EH implementations to the top.
 291         (find_exception_handler): Split out.  Start from 0.  Compare against
 292         end with >=.
 293         (__find_first_exception_table_match): Use it.
 294         * except.c (output_exception_table): Don't do anything if there's
 295         no table.  Don't output a first entry of zeroes.
 296         (eh_outer_context): Adjust properly.
 297         (add_eh_table_entry): Use xrealloc.
 298         * toplev.c (compile_file): Just call output_exception_table.
 299
 300 Wed Sep 10  11:30:36 1997  Jason Merrill  <jason@cygnus.com>
 301
 302         * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
 303
 304 Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 305
 306         * except.c (eh_outer_context): Do masking using expand_and.
 307
 308 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
 309
 310         Add port done awhile ago for the ARC cpu.
 311         * arc/arc.h: New file.
 312         * arc/arc.c: New file.
 313         * arc/arc.md: New file.
 314         * arc/initfini.c: New file.
 315         * arc/lib1funcs.asm: New file.
 316         * arc/t-arc: New file.
 317         * arc/xm-arc.h: New file.
 318         * ginclude/va-arc.h: New file.
 319         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
 320         * ginclude/varargs.h: Likewise.
 321         * Makefile.in (USER_H): Add va-arc.h.
 322         * configure.in (arc-*-elf*): Recognize.
 323         * longlong.h: Add ARC support.
 324
 325 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
 326
 327         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
 328         when clearing non-BLKmode data.
 329
 330 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 331
 332         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
 333         * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
 334
 335         * xm-m88k.h (USG): Only define if it hasn't already been defined.
 336
 337         * Makefile.in (risky-stage1): Delete gratutious whitespace.
 338
 339         * Makefile.in (clean): Delete libgcc1-test.
 340
 341         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
 342
 343 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
 344
 345         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
 346         template.
 347
 348 Tue Sep  9 09:50:02 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 349
 350         * dwarf2out.c (output_call_frame_info): Call named_section.
 351
 352 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
 353
 354         * haifa-sched.c (print_value): Fix last change.
 355
 356 Tue Sep  9 01:30:37 1997  Jason Merrill  <jason@yorick.cygnus.com>
 357
 358         * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
 359         write_symbols.
 360
 361 Mon Sep  8 16:32:43 1997  Jason Merrill  <jason@yorick.cygnus.com>
 362
 363         * mips.c (function_prologue): Set up the CFA when ABI_32.
 364
 365         * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
 366         for dwarf2 unwind info.
 367         (output_function_prologue, sparc_flat_output_function_prologue): Same.
 368
 369         * final.c (final_end_function): Check dwarf2out_do_frame instead
 370         of DWARF2_DEBUG for dwarf2 unwind info.
 371         (final_scan_insn): Likewise.
 372         (final_start_function): Likewise.  Initialize dwarf2 frame debug here.
 373         (final): Not here.
 374
 375         * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
 376         count > 0.
 377
 378         * varasm.c (exception_section): Check EXCEPTION_SECTION first.
 379
 380 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
 381
 382         * v850.h (ASM_SPEC): Pass on target processor.
 383         (CPP_PREDEFINES): Only define if not already specified.
 384         (TARGET_VERSION): Only define if not already specified.
 385         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
 386         processor.
 387         (EXTRA_SWITCHES): Extra entries in the switches array.
 388         (TARGET_DEFAULT): Set default target processor.
 389
 390 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
 391
 392         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
 393         cases, add %# and %/, and add : to make them into extended asms.
 394
 395 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
 396
 397         * alias.c (init_alias_analysis): Clean up incompatible pointer
 398         type warning in bzero.
 399         * regmove.c (regmove_optimize): Ditto.
 400         * haifa-sched.c (find_rgns): Ditto.
 401
 402         * haifa-sched.c (print_value): Clean up ptr->int cast
 403         warnings.
 404
 405 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
 406
 407         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
 408         * install.texi (Configurations): Ditto.
 409         * config.sub: Ditto.
 410
 411 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
 412
 413         * Makefile.in (sdbout.o): Depend on insn-config.h.
 414
 415 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
 416
 417         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
 418         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
 419
 420 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
 421
 422         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
 423         prologue insn, only the first elt is significant.
 424         (output_call_frame_info): For exception handling, always use 4-byte
 425         fields as specified by the dwarf2 spec.
 426         Don't skip trivial FDEs.
 427
 428 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
 429
 430         * version.c: Bump for snapshot.
 431
 432 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
 433
 434         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 435         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 436         when op1_is_pow2.
 437
 438 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 439
 440         * final.c (shorten_branches): During first pass, assume worst
 441         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 442
 443         * Makefile.in (distclean): Remove various things left around
 444         by running the testsuite.
 445
 446 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 447
 448         * configure.in (out_file): Emit definition to config.status in order
 449         to have a defined value for configure.lang.
 450         * configure: Re-built.
 451
 452 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 453
 454         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 455         for ld-new.
 456         * configure: Rebuilt.
 457
 458 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 459
 460         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 461
 462 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 463
 464         * sparc/sparc.md: Add ultrasparc scheduling support.
 465         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 466
 467 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 468
 469         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 470         as initial value for real_label_map.
 471         (copy_for_inline): Likewise.
 472
 473 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 474
 475         * sched.c (update_flow_info) When looking if to set found_split_dest
 476         or found_orig_dest, look at all parts of a PARALLEL.
 477         * haifa-sched.c (update_flow_info): Likewise.
 478
 479 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 480
 481         * v850: New directory for v850 port.
 482         * v850/lib1funcs.asm: New file.
 483         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 484         * ginclude/va-v850.h: New file.
 485         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 486         * configure.in (mn10200-*-*): New target.
 487         * configure: Rebuilt.
 488         * config.sub: Handle v850-elf.
 489         * Makefile.in (USER_H): Add va-mn10200.h.
 490         * invoke.texi: Document v850 stuff.
 491
 492 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 493
 494         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 495         has integer TYPE_{MAX,MIN}_VALUE before using them.
 496
 497         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 498         __HPUX_ASM__ versions.
 499
 500 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 501
 502         * install.sh: Delete duplicate install script.
 503
 504 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 505
 506         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 507         computed goto which sets the same stack register.
 508
 509         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 510         destination are both on the regstack.
 511         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 512
 513 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 514
 515         * mips.md (nonlocal_goto_receiver): Define.
 516
 517         * profile.c (output_arc_profiler): Check next_insert_after for non
 518         NULL before deferencing it.
 519
 520         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 521
 522 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 523
 524         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 525
 526 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 527
 528         * toplev.c (rest_of_compilation): For passes starting with
 529         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 530
 531         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 532         file.
 533
 534         * flow.c (print_rtl_with_bb): Print which insns start and end
 535         basic blocks.  For the start of a basic block, also print the live
 536         information.
 537
 538 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 539
 540         * toplev.c (main): Change #elif to #else/#ifdef
 541
 542         * tlink.c: Include ctype.h.
 543         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 544
 545 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 546
 547         * bitmap.c: Conditionally include stdlib.h.
 548         (free): Provide a declaration if NEED_DECLARATION_FREE.
 549
 550 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 551
 552         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 553
 554 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 555
 556         * profile.c (output_arc_profiler): Verify next_insert_after is an
 557         INSN before and after skipping a stack pop.
 558
 559 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 560
 561         * final.c (shorten_branches): Don't count the lengths of deleted
 562         instructions.
 563
 564 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 565
 566         * version.c: Bump for snapshot.
 567
 568 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 569
 570         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 571         two bitmaps ANDed together.
 572         (bitmap_print): Declare.
 573
 574         * bitmap.c (function_obstack): Don't declare any more.
 575         (bitmap_obstack): Obstack for allocating links from.
 576         (bitmap_obstack_init): New static to say whether to initialize
 577         bitmap_obstack.
 578         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 579         (bitmap_release_memory): Free all memory allocated from
 580         bitmap_obstack.
 581
 582         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 583         EXECUTE_IF_AND_IN_BITMAP.
 584
 585 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 586
 587         * alias.c (true_dependence): Address with AND can alias scalars.
 588         (anti_dependence, output_dependence): Likewise.
 589
 590         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 591
 592 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 593
 594         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 595           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 596           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 597           definitions.  Use -qrtems instead of -mrtems.
 598
 599 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 600
 601         * xm-sco5.h (sys_siglist): Define.
 602         (SYS_SIGLIST_DECLARED): Likewise.
 603
 604 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 605
 606         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 607
 608 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 609
 610         * except.c (eh_outer_context): Expand masking operation using
 611         expand_binop.
 612
 613 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 614
 615         * alpha.md (floatdisf2-1): New pattern.
 616
 617 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 618
 619         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 620         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 621         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 622         * gcc.texi: Note that if you define sys_siglist that you should
 623         also define SYS_SIGLIST_DECLARED.
 624
 625         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 626         are relative to the next instruction, not the current instruction.
 627
 628 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 629
 630         * local-alloc.c (contains_replace_regs): New function.
 631         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 632         verify that there is no existing REG_EQUIV note, and add a call to
 633         contains_place_regs.
 634
 635 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 636
 637         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 638         (STARTFILE_SPEC): Always use crtbegin.o%s
 639         (ENDFILE_SPEC): Always use crtend.o%s.
 640
 641 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 642
 643         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 644         is passed in.
 645         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 646         SFmode for 64 bit hosts.
 647
 648 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 649
 650         * fixincludes: Permits spaces between # and define.  Discard C++
 651         comments in sys/pci.h on HP/UX 10.20.
 652
 653 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 654
 655         * version.c: Bump for snapshot.
 656
 657         * pa.c (restore_unscaled_index_insn_codes): New function.
 658         (record_unscaled_index_insn_codes): Likewise.
 659         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 660         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 661         (pa_reorg): Call record_unscaled_index_insn_codes.
 662
 663         * haifa-sched.c (move_insn): Handle notes correctly for insns
 664         with SCHED_GROUP_P set.
 665
 666 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 667
 668         * alpha/xm-linux.h (USE_BFD): Undef before define.
 669
 670 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 671
 672         * cse.c (cse_insn): Don't record BLKmode values.
 673
 674 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 675
 676         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 677
 678 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 679
 680         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 681         * collect2.c (sys_errlist): Likewise.
 682         * cpplib.c (sys_errlist): Likewise.
 683         * gcc.c (sys_errlist): Likewise.
 684         * protoize (sys_errlist): Likewise.
 685         * configure.in: Check for strerror.
 686         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 687         * xm-gnu.h (HAVE_STRERROR): Likewise.
 688         * xm-linux.h (HAVE_STRERROR): Likewise.
 689         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 690         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 691         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 692         * xm-dos.h (HAVE_STRERROR): Likewise.
 693         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 694         * xm-pa.h (HAVE_STRERROR): Likewise.
 695         * xm-papro.h (HAVE_STRERROR): Likewise.
 696         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 697         * configure, config.in: Rebuilt.
 698
 699         * Makefile.in: Add several missing "else true" clauses.
 700
 701         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 702         * mips-tfile.c: Likewise.
 703         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 704         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 705         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 706         * configure.in: Check for sys_siglist declaration.
 707         * configure, config.in: Rebuilt.
 708
 709 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 710
 711         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 712         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 713         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 714         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 715         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 716         macro EXTRA_SUBTARGET_SWITCHES.
 717         * configure.in (sh*-*-rtems*): New target.
 718         * sh/rtems.h: New file.
 719         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 720         * configure: Rebuilt.
 721
 722 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 723
 724         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 725
 726 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 727
 728         * rs6000.md: Make DF fused-add operations pay attention to
 729         -mno-fused-add.
 730
 731 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 732
 733         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 734
 735 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 736
 737         * pa.md (reload_peepholes): Make sure operand is a REG before
 738         examining REGNO.  Allow general registers too.
 739
 740 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 741
 742         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 743
 744 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 745
 746         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 747         to reallocate abbrev_die_table.
 748
 749 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 750
 751         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 752
 753 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 754
 755         * Makefile.in (config.status): Depend on version.c
 756
 757         * expr.h (insn_gen_function): Reenable prototype.
 758
 759         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 760         first parameter.
 761
 762 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 763
 764         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 765
 766 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 767
 768         * version.c: Bump for latest snapshot.
 769
 770         * bc-optab.c: Conditionally include stdlib.h.
 771         (free): Provide a declaration if NEED_DECLARATION_FREE.
 772         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 773         * rtl.h (free): Remove declaration.
 774         * tree.h (free): Remvoe declaration.
 775
 776         * configure: Rebuilt.
 777
 778 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 779
 780         * flags.h (flag_move_all_movables): Declare.
 781         (flag_reduce_all_givs): Likewise.
 782         * loop.c (move_movables): Handle flag_move_all_movables.
 783         (strength_reduce): Handle flag_reduce_all_givs.
 784         * toplev.c (flag_move_all_movables): Define.
 785         (flag_reduce_all_givs): Likewise.
 786         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 787         * invoke.texi: Document new options, including alias stuff that
 788         wasn't included last time.
 789
 790 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 791
 792         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 793         * t-mn10200: Ditto.
 794         * t-vxsparc: Ditto.
 795         * t-vxworks68: Ditto.
 796         * t-vxworks960: Ditto.
 797         * t-vx29k: Ditto.
 798
 799 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 800
 801         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 802         if not already defined, and USE_C_ALLOCA not defined.
 803
 804 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 805
 806         * config.guess: Replace with script that uses ../config.guess.
 807
 808         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 809         if USE_GNULIBC_1 is not defined.
 810
 811 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 812
 813         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 814         * config.guess: Recognize alpha-linux-gnulibc1.
 815         * configure.in (alpha-*-linux-gnulibc1): New target.
 816         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 817
 818 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 819
 820         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 821         last change.
 822
 823 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 824
 825         * loop.c (combine_movables): Earlier insns don't match later ones.
 826
 827 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 828
 829         * config/linux.h (CC1_SPEC): Define it only if not defined.
 830
 831         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 832         <linux.h>
 833
 834         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 835         USE_GNULIBC_1 is not defined.
 836
 837         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 838
 839         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 840         as 1 if USE_GNULIBC_1 is not defined.
 841
 842 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 843
 844         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 845         to be something other than a REG.
 846         * function.c (expand_function_end): Fix current_function_return_rtx
 847         if it was a pseudo.
 848
 849         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 850         * x-netbsd: Likewise
 851         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 852         (INSTALL_HEADERS): Delete.
 853         * x-dguxbcs: Likewise.
 854         * x-hp3bsd44: Likewise
 855         * x-pa: Likewise.
 856
 857 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 858
 859         * i386.md (pop): pop increments the stack pointer.
 860         (prologue_set_stack_ptr): New pattern.
 861         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 862         instead of subsi3.
 863
 864 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 865
 866         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 867         address where an offsettable address is required.
 868
 869 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 870
 871         * loop.c (check_final_value): Don't miss a biv increment in a
 872         parallel.
 873
 874 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 875
 876         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 877         TYPE_DECL_IS_STUB instead of DECL_NAME.
 878
 879 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 880
 881         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 882
 883 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 884
 885         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 886
 887 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 888
 889         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 890         (find_post_sched_live): Likewise.
 891
 892         * haifa-sched.c (schedule_block): Remove old code to get arguments
 893         from hard regs into pseudos early.
 894
 895 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 896
 897         * version.c: Bump for new snapshot.
 898
 899         * local-alloc.c (update_equiv_regs): All the target to reject
 900         promotion of some REG_EQUAL to REG_EQUIV notes.
 901         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 902
 903         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 904         secondary reloads.
 905
 906         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 907         store of the argument registers.
 908
 909 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 910
 911         * fold-const.c (multiple_of_p): New function.
 912         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 913
 914 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 915
 916         * expr.h (insn_gen_function): Temporarily remove prototype.
 917
 918 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 919
 920         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 921         filenames.  Use sed to extract base filename for install.
 922
 923 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 924
 925         * unroll.c (find_splittable_givs): Only share if two givs have the
 926         same add and multiply values.
 927
 928 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 929
 930         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 931         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 932
 933 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 934
 935         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 936         around branch tables.
 937         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 938         and .end_brtab directives if TARGET_GAS.
 939
 940 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 941
 942         * alias.c (true_dependence): Pass x_addr not x to varies.
 943
 944         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
 945         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
 946         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
 947         declarations.
 948         * config.in, configure: Regenerate.
 949
 950 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
 951
 952         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
 953         LO_SUM.
 954         (record_set): Handle LO_SUM like PLUS.
 955         (init_alias_analysis): When following chains of base addresses,
 956         do not stop on reaching a hard register.
 957
 958 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
 959
 960         * version.c: Bump for new snapshot.
 961
 962 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
 963
 964         * alpha.h (ARCH_ASM_FILE_START): Define.
 965         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
 966         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
 967
 968 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
 969
 970         * Makefile.in (install-common): Put gcov comment at start of line.
 971
 972 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
 973
 974         * alias.c (init_alias_analysis): When simplifying the reg_base_value
 975         array, simplify entries for hard registers too.
 976
 977 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
 978
 979         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
 980         list.
 981
 982 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
 983
 984         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
 985         block_stack before dereferencing it.
 986
 987 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
 988
 989         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
 990
 991 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
 992
 993         * cplus-dem.c: Add 'extern' to prepends_underscore.
 994
 995 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
 996
 997         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
 998         (get_issue_rate): Delete.
 999         * pa.h (ISSUE_RATE): Define.
1000
1001         * configure.in: Turn on haifa by default for the PA.
1002         * configure: Rebuilt.
1003         * pa.c (override_options): Accept -mschedule=7200 option.
1004         (pa_adjust_cost): No longer need to scale costs for newer
1005         processors.
1006         * pa.h (enum processor_type): Add PROCESSOR_7200.
1007         * pa.md: Revamp scheduling parameters to work better with
1008         haifa.  Add scheduling parameters for the 7200.
1009
1010         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1011         insns too.
1012         (schedule_block): When adjusting basic_block_{head,end}, account
1013         for movement of SCHED_GROUP_P insns too.
1014
1015         * haifa-sched.c (debug_dependencies): Fix thinko.
1016
1017         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1018         (site.exp, check, check-g++, check-gcc): New targets.
1019
1020         * haifa-sched.c: Make lots of variables static.
1021
1022 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
1023
1024         * expr.h, real.h: Finish prototyping.
1025
1026 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
1027
1028         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1029         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1030         * reload1.c: Undo bugfix from Aug 11.
1031
1032 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
1033
1034         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1035         quotes around the name.
1036         * configure: Regenerate.
1037
1038 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
1039
1040         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1041
1042 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
1043
1044         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1045         to sub-makes to avoid building more passes than the user might have
1046         requested on the command line.
1047
1048 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
1049
1050         * configure.in: Expurgate `broken_install' (install is
1051         autoconfed).
1052
1053         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1054         relevant).
1055
1056 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
1057
1058         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1059         functions and declarations.
1060         (analyze_loop_iterations): Use condjump_p.
1061         (insert_bct): Likewise.  Use exact_log2.
1062
1063 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
1064
1065         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1066         (schedule_region): Likewise.
1067         (schedule_insns): Likewise.
1068
1069         * PROJECTS: Update with Haifa stuff.
1070
1071 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
1072
1073         * version.c: Change the version string to look like:
1074         egcs-2.90.00 970814 (gcc2-970802 experimental).
1075
1076         * loop.c (is_conditional_branch): Make definition match declaration.
1077
1078         * gcc.c: Take out experimental snapshot warning message.
1079
1080 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
1081
1082         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1083         print out the names of the notes.  Print out the name of the insn
1084         that is not a note, and not an {,CALL_,JUMP_}INSN.
1085
1086 Wed Aug 13 17:32:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
1087
1088         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1089         again for the slot after we give it RTL.
1090
1091 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
1092
1093         * configure.in (haifa configury): Fix typo.
1094         * configure: Regenerate.
1095
1096 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
1097
1098         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1099
1100         * gcc.info*: Rebuilt.
1101
1102         * COPYING.g77, README.g77: New files.
1103         * real.c (ereal_unto_float, ereal_unto_double): New functions.
1104         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1105         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1106
1107 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
1108
1109         * Integrate Haifa instruction scheduler.
1110         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
1111         to sched with $(SCHED_CFLAGS.
1112         * configure.in: Handle --enable-haifa.
1113         * configure: Rebuilt.
1114         * flags.h: Add new flags for haifa instruction scheduler.
1115         * genattrtab.c (expand_units): For haifa, don't subtract one
1116         when computing blockage.
1117         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1118         (flag_schedule_speculative): Ditto.
1119         (flag_schedule_speculative_load): Ditto.
1120         (flag_schedule_speculative_load_dangerous): Ditto.
1121         (flag_schedule_reverse_before_reload): Ditto.
1122         (flag_schedule_reverse_after_reload): Ditto.
1123         (flag_branch_on_count_reg): Ditto.
1124         (f_options): Add Haifa switches.
1125         (main): Turn off some Haifa options if appropriate macro is
1126         defined.  Process Haifa switches.
1127         * unroll.c (iteration_info): No longer static, since Haifa
1128         scheduler uses it.
1129         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1130         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1131         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1132         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1133         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1134         storage for the Haifa scheduler.
1135         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1136         LABEL_NEXTREF.
1137         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1138         are defined, call analyze_loop_iterations and insert_bct to use
1139         countdown loops.
1140         (record_giv): Refine test for jumps out of loops if HAIFA is
1141         defined.
1142         (analyze_loop_iterations): New function to identify if we can use
1143         a countdown loop.
1144         (insert_bct): Insert countdown loop.
1145         (instrument_loop_bct): Low level code to insert countdown loop.
1146         (loop_number): Calculate UID of loop.
1147         (indirect_jump_in_function_p): Return true if an indirect jump is
1148         in the function.
1149         (is_power_of_2): Return true if value is a power of 2.
1150         (is_conditional_branch): Return true if insn is a conditional
1151         jump.
1152         (fix_bct_param): Process -fbct-{min,max}-N switches.
1153         (check_bct_param): Return true if loop should be instrumented.
1154         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1155         (loop_optimize): Initialize.
1156         (get_condition_for_loop): Ditto.
1157         * loop.c (strength_reduce): Inside of code that uses #ifdef
1158         HAVE_decrement_and_branch_on_count code, test it to make sure the
1159         condition is true.
1160         (instrument_loop_bct): Ditto.
1161         * haifa-sched.c: New file.
1162
1163
1164         * Integrate regmove pass.
1165         * Makefile.in (OBJS): Add regmove.o
1166         (regmove.o): Add dependencies.
1167         * flow.c (find_use_as_address): No longer static.
1168         * rtl.h (find_use_as_address): Declare.
1169         * toplev.c (regmove_dump, flag_regmove): Define.
1170         (f_options): Add -fregmove.
1171         (regmove_dump_file, regmove_time): Define.
1172         (fatal_insn): Close the regmove dump file.
1173         (compile_file): Initialize regmove_time; open/close the regmove dump
1174         file as needed.  Print regmove time as needed.
1175         (rest_of_compilation): Run regmove pass if requested, dump
1176         RTL after regmove if requested.
1177         (main): If -O2 or more, turn on regmove.  Handle dump switches.
1178         * regmove.c: New file.
1179
1180 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
1181
1182         * Integrate tlink patch from jason@cygnus.com
1183         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1184         (process_command): Increment n_switches for them.  Don't discard
1185         their args.  Validate them.
1186         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1187         From Rohan Lenard.
1188         (process_command): Set include_prefixes from COMPILER_PATH.
1189         (main): Set COLLECT_GCC_OPTIONS sooner.
1190         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1191         * tlink.c, hash.c, hash.h: New files.
1192         * Makefile.in (USE_COLLECT2): Always use collect2.
1193         (collect2): Depend on and link in hash.o and tlink.o.
1194         (tlink.o, hash.o): Add dependencies.
1195
1196 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
1197
1198         * Integrate alias analysis changes from jfc@mit.edu
1199         * Makefile.in (OBJS): Add alias.o
1200         (alias.o): Add dependencies.
1201         * alias.c: New file.
1202         * sched.c: Remove alias analysis code.  It lives in alias.c now.
1203         (sched_analyze_2): Add new arguments to true_dependence.
1204         (schedule_insns): Always call init_alias_analysis.
1205         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1206         mark return value from such functions as a pointer and keep track of
1207         them for alias analysis.  If a return value from a function is a
1208         pointer, mark it as such.
1209         * combine.c (distribute_notes): Handle REG_NOALIAS.
1210         * cse.c (struct write_data): Delete.  No longer needed.
1211         (invalidate): Don't call set_nonvarying_address_components anymore.
1212         Use true_dependence to decide if an entry should be removed from
1213         the hash table.
1214         (invalidate_memory): Remove WRITES argument, simplify appropriately.
1215         Fix all callers.
1216         (note_mem_written): Similarly for WRITE_PTR argument.
1217         (invalidate_from_clobbers): Similarly for W argument.
1218         (invalidate_for_call): Remove memory elements from the hash table.
1219         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1220         (cse_rtx_varies_p): New function.  Derived from old
1221         cse_rtx_addr_varies_p.
1222         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1223         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
1224         pointer if PUSH_ROUNDING is defined.  No longer need to call
1225         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1226         (skipped_writes_memory): Remove variable.
1227         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1228         (invalidate_skipped_block): Simplify for new alias analysis code.
1229         (cse_set_around_loop): Likewise.
1230         (cse_main): Call init_alias_analysis.
1231         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1232         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1233         (f_options): Add new alias checking arguments.
1234         (main): Set flag_alias_check when optimizing.
1235         * local_alloc (validate_equiv_mem_from_store): Add new arguments
1236         to true_dependence.
1237         (memref_referenced_p): Likewise.
1238         * loop.c (NUM_STORES): Increase to 30.
1239         (prescan_loop): Only non-constant calls set unknown_address_altered.
1240         (invariant_p): Add new arguments to true_dependence.
1241         (record_giv): Initialize unrolled and shared fields.
1242         (emit_iv_add_mult): Call record_base_value as needed.
1243         * loop.h (struct induction): Add unrolled and shared fields.
1244         * unroll.c  (unroll_loop): Call record_base_value as needed.
1245         (copy_loop_body): Likewise.
1246         (final_biv_value): Likewise.
1247         (final_giv_value): Likewise.
1248         (find_splittable_regs): Likewise.  Only create one new pseudo
1249         if we have multiple address GIVs that were combined with the same
1250         dst_reg GIV.  Note when a new register is created due to unrolling.
1251         * rtl.c (reg_note_name): Add REG_NOALIAS.
1252         * rtl.h (enum reg_note): Similarly.
1253         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1254         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1255         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1256         (true_dependence, read_dependence, anti_dependence): Likewise.
1257         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1258         (mark_user_reg, mark_reg_pointer): Likewise.
1259
1260
1261         * Integrate reload bugfix from Wilon which enables the PA port
1262         to bootstrap again.
1263         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1264         OPERAND_ADDRESS when computing how many registers an insn needs.
1265         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1266         conflict.
1267         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1268         OPADDR_ADDR reload.
1269         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1270         in reload_reg_use_in_op_addr do not reach the end.
1271         do not reach the end.
1272         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1273         RELOAD_FOR_OPERAND_ADDRESS.
1274
1275 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
1276
1277         * egcs project officially starts.
1278