gcc/ChangeLog

   1 Thu Sep 18 21:13:40 1997  Jeffrey A Law  (law@cygnus.com)
   2
   3         * Makefile.in (BOOT_CFLAGS): Use -O2.
   4
   5         * configure.in (strtoul, bsearch): Have autoconf check for these
   6         functions.
   7         * configure, config.in: Rebuilt.
   8
   9         * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
  10         * mips/mips.h (alloca): Likewise.
  11         * rs6000/xm-rs6000.h (alloca): Likewise.
  12         * rs6000/xm-sysv4.h: Likewise.
  13
  14 Thu Sep 18 14:22:22 1997  Jason Merrill  <jason@yorick.cygnus.com>
  15
  16         * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
  17         * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
  18         (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
  19
  20         * except.c (end_eh_unwinder): Subtract 1 from return address.
  21         * libgcc2.c (__throw): Likewise.
  22         (find_exception_handler): Don't change PC here.  Compare end with >.
  23
  24 Thu Sep 18 10:43:07 1997  Nick Clifton  <nickc@cygnus.com>
  25
  26         * v850.c (compute_register_save_size): Correct register
  27         number.
  28         * v850.md (save_interrupt, return_interrupt): Correct
  29         register number.
  30         * v850/lib1funcs.asm (save_interrupt): Correct register number.
  31         (return_interrupt): Use stack pointer, not element pointer.
  32
  33 1997-09-18  Brendan Kehoe  <brendan@lisa.cygnus.com>
  34
  35         * configure.in, configure: Make sure to create the stage* and include
  36         symbolic links in each subdirectory.
  37
  38 Thu Sep 18 01:47:06 1997  Jeffrey A Law  (law@cygnus.com)
  39
  40         * pa.md (reload_peepholes): Don't allow addresses with side
  41         effects for the memory operand.
  42
  43 Wed Sep 17 18:19:53 1997  Jason Merrill  <jason@yorick.cygnus.com>
  44
  45         * libgcc2.c (find_exception_handler): Subtract one from our PC when
  46         looking for a handler, to avoid hitting the beginning of the next
  47         region.
  48
  49         * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
  50
  51 Wed Sep 17 18:33:59 1997  Jeffrey A Law  (law@cygnus.com)
  52
  53         * mips/abi64.h (LONG_MAX_SPEC): Define.
  54         * mips.h (LONG_MAX_SPEC): Define.
  55         (CPP_SPEC): Include long_max_spec.
  56         (EXTRA_SPECS): Include long_max_spec.
  57
  58 Wed Sep 17 14:11:38 1997  Jeffrey A Law  (law@cygnus.com)
  59
  60         * v850.c (construct_save_jarl): Fix thinko in last change.
  61
  62 Wed Sep 17 09:53:07 1997  Jeffrey A Law  (law@cygnus.com)
  63
  64         * version.c: Bump for snapshot.
  65
  66 Tue Sep 16 14:22:36 1997  Jason Merrill  <jason@yorick.cygnus.com>
  67
  68         * libgcc2.c (find_exception_handler): Not found is -1.
  69
  70         * integrate.c (expand_inline_function): Move expand_start_bindings
  71         after expanding the arguments.
  72
  73 Tue Sep 16 11:13:46 1997  Jim Wilson  <wilson@cygnus.com>
  74
  75         * expr.c (expand_expr): Remove previous incorrect change.
  76         If target and slot has no DECL_RTL, then call mark_addressable
  77         again for the slot after we give it RTL.
  78
  79 Tue Sep 16 09:18:52 1997  Jason Merrill  (jason@cygnus.com)
  80
  81         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
  82         again for the slot after we give it RTL.
  83
  84 Tue Sep 16 00:13:20 1997  Nick Clifton  <nickc@cygnus.com>
  85
  86         * v850.c (register_is_ok_for_epilogue,
  87         pattern_is_ok_for_epilogue, construct_restore_jr,
  88         pattern_is_ok_for_prologue, construct_save_jarl): New functions.
  89
  90         * v850.h (pattern_is_ok_for_prologue,
  91         pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
  92         predicates.
  93
  94         * v850.md: Replace prologue and epilogue patterns with a
  95         match_parallel pattern.
  96
  97 Mon Sep 15 22:53:01 1997  Jeffrey A Law  (law@cygnus.com)
  98
  99         * aclocal.m4: Add replacement for AC_PROG_INSTALL.
 100         * configure.in: Use EGCS_PROG_INSTALL.
 101
 102 Mon Sep 15 22:40:55 1997  Jim Wilson  (wilson@cygnus.com)
 103
 104         * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
 105         extern inline function.
 106
 107 Mon Sep 15 22:40:55 1997  Richard Henderson  (rth@cygnus.com)
 108
 109         * dwarf2out.c (reg_loc_descriptor): Fix prototype.
 110         (concat_loc_descriptor): New function.
 111         (loc_descriptor): Call it.
 112         (add_AT_location_description): Also elide the descriptor if both
 113         halves of a CONCAT are pseudos.
 114         (add_location_or_const_value_attribute): Recognize CONCAT too.
 115
 116 Mon Sep 15 15:24:00 1997  Richard Henderson  <rth@cygnus.com>
 117
 118         * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
 119
 120         * alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
 121         out-or-range reg_offset.
 122         (output_epilog): Likewise.
 123
 124 Mon Sep 15 15:39:26 1997  Jeffrey A Law  (law@cygnus.com)
 125
 126         * cse.c (simplify_relational_operation): If MODE specifies a
 127         mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
 128         is derived from the sign bit of the low word.
 129
 130 Mon Sep 15 11:43:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
 131
 132         Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
 133
 134         * dwarf2.h: Add DW_CFA_GNU_args_size.
 135         * frame.c (execute_cfa_insn): Likewise.
 136         * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
 137         (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
 138         (dwarf2out_frame_debug): If this isn't a prologue or epilogue
 139         insn, hand it off to dwarf2out_stack_adjust.
 140         (dwarf2out_begin_prologue): Initialize args_size.
 141         * frame.h (struct frame_state): Add args_size.
 142         * libgcc2.c (__throw): Use args_size.
 143         * final.c (final_scan_insn): If we push args, hand off all insns
 144         to dwarf2out_frame_debug.
 145         * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
 146
 147         * dwarf2out.c dwarf2out_frame_debug): Fix typo.
 148         Handle epilogue restore of SP from FP.
 149         * emit-rtl.c (gen_sequence): Still generate a sequence if the
 150         lone insn has RTX_FRAME_RELATED_P set.
 151
 152         * frame.c (extract_cie_info): Handle "e" augmentation.
 153         * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
 154         absence of UNALIGNED_*_ASM_OP.
 155         (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
 156         (output_call_frame_info): Use "e" instead of "z" for augmentation.
 157         Don't emit augmentation fields length.
 158         (dwarf2out_do_frame): Move outside of #ifdefs.
 159         * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
 160         opcodes.
 161
 162         * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
 163         * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
 164         * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
 165         * sparc/sun4gas.h: New file.
 166         * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
 167
 168         * collect2.c (write_c_file_stat, write_c_file_glob): Declare
 169         __register_frame_table and __deregister_frame.
 170
 171 1997-09-15  Brendan Kehoe  <brendan@cygnus.com>
 172
 173         * except.c (find_exception_handler_labels): Use xmalloc instead of
 174         alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
 175         in some cases.
 176
 177 Sun Sep 14 21:01:23 1997  Jeffrey A Law  (law@cygnus.com)
 178
 179         * Makefile.in: Various changes to build info files
 180         in the object tree rather than the source tree.
 181
 182 Sun Sep 14 12:24:30 1997  Jeffrey A Law  (law@cygnus.com)
 183
 184         * fixinc.math: New file to fix math.h on some systems.
 185         * configure.in (freebsd, netbsd): Use fixinc.math on these
 186         systems.
 187         * configure: Rebuilt.
 188
 189 Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
 190
 191         * regmove.c (regmove_optimize): If we end up moving the
 192         original insn due to lifetime overlaps, make sure to move
 193         REG_NOTES too.
 194
 195 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 196
 197         * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
 198
 199 Sat Sep 13 12:57:26 1997  Jeffrey A Law  (law@cygnus.com)
 200
 201         * haifa-sched.c (add_branch_dependences): Make each insn in
 202         a SCHED_GROUP_P block explicitly depend on the previous insn.
 203
 204 Fri Sep 12 13:49:58 1997  Jason Merrill  <jason@yorick.cygnus.com>
 205
 206         * except.h: Prototype dwarf2 hooks.
 207         * expr.c: Adjust.
 208
 209 Thu Sep 11 17:43:55 1997  Jim Wilson  <wilson@cygnus.com>
 210
 211         * configure.in (native_prefix): Delete.
 212         (mips-dec-netbsd): Don't set prefix.
 213         (*linux*): Don't set prefix.
 214
 215 Thu Sep 11 15:48:32 1997  Fred Fish  <fnf@ninemoons.com>
 216
 217         * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
 218         defined.  If not defined, include <sys/varargs.h> if
 219         HAVE_SYS_VARARGS_H is defined.
 220         * configure.in: Test for varargs.h and sys/varargs.h.
 221         * configure: Regenerate with autoconf.
 222         * config.in: Regenerate with autoheader.
 223
 224         * cpplib.c (quote_string): Cast first arg of sprintf call
 225         from "unsigned char *" to "char *".
 226         (output_line_command): Ditto.
 227         (macroexpand): Ditto.
 228         (do_line): Cast atoi arg from "unsigned char *" to "char *".
 229
 230 Wed Sep 10 21:37:30 1997  Jeffrey A Law  (law@cygnus.com)
 231
 232         * version.c: Bump for snapshot.
 233
 234         * Makefile.in (compare): Exit with nonzero status if there
 235         are comparison failures.  Note which files failed the
 236         comparison test in .bad_compare.
 237
 238 Wed Sep 10 17:05:46 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 239
 240         * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
 241
 242 Wed Sep 10 16:37:28 1997  Fred Fish  <fnf@ninemoons.com>
 243
 244         * Makefile.in (LN, LN_S): New macros, use where appropriate.
 245         * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
 246         * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
 247         * configure: Regenerated.
 248
 249 Thu Sep 11 11:09:43 1997  Jeffrey A Law  (law@cygnus.com)
 250
 251         * loop.c (strength_reduce): Fix typo.
 252
 253 Wed Sep 10 16:01:15 1997  Jim Wilson  <wilson@cygnus.com>
 254
 255         * m88k/m88k.c (struct option): Rename to struct options.
 256         * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
 257         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
 258         * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
 259         __DOLPHIN__ or sysV88.
 260
 261 Wed Sep 10 14:58:40 1997  Jim Wilson  <wilson@cygnus.com>
 262
 263         * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
 264         create new subreg.
 265
 266 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 267
 268         * config.sub: Accept 'amigados' for backward compatability.
 269
 270 Wed Sep 10 14:05:08 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 271
 272         * Makefile.in (testsuite/site.exp): New target.
 273         (check-gcc, check-g++): Depend on testsuite/site.exp.
 274         Don't stop for failure.
 275
 276 Wed Sep 10 12:59:57 1997  Jason Merrill  <jason@yorick.cygnus.com>
 277
 278         * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
 279         if DWARF2_UNWIND_INFO.
 280
 281 Wed Sep 10 11:49:20 1997  Jason Merrill  <jason@yorick.cygnus.com>
 282
 283         Add support for exception handling using DWARF 2 frame unwind info.
 284         Currently works on SPARC and MIPS, and almost on x86.
 285
 286         * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
 287         next_stack_level, in_reg_window): Helper fns.
 288         (__throw): Implement for DWARF2_UNWIND_INFO.
 289
 290         * expr.c (expand_builtin): Handle builtins used by __throw.
 291         * tree.h (enum built_in_function): Add builtins used by __throw.
 292         * c-decl.c (init_decl_processing): Declare builtins used by __throw.
 293         * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
 294         * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
 295         (expand_builtin_extract_return_addr): Likewise.
 296         (expand_builtin_frob_return_addr): Likewise.
 297         (expand_builtin_set_return_addr_reg): Likewise.
 298         (expand_builtin_eh_stub): Likewise.
 299         (expand_builtin_set_eh_regs): Likewise.
 300         (eh_regs): Choose two call-clobbered registers for passing back values.
 301
 302         * frame.c, frame.h: New files for parsing dwarf 2 frame info.
 303         * Makefile.in (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
 304         (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
 305         (stmp-multilib): Likewise.
 306         ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
 307
 308         * except.c: #include "defaults.h".
 309         (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
 310         (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
 311         (register_exception_table_p): New fn.
 312         (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
 313         (end_eh_unwinder): Likewise.
 314
 315         * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
 316         call __register_frame and __deregister_frame as needed.
 317         * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
 318         * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
 319         EH_FRAME_SECTION_ASM_OP.
 320         * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
 321         * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
 322         (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
 323
 324         * dwarf2out.c (output_call_frame_info): If no support for
 325         EXCEPTION_SECTION, mark the start of the frame info with a
 326         collectable tag.
 327         * collect2.c (frame_tables): New list.
 328         (is_ctor_dtor): Recognise frame entries.
 329         (scan_prog_file): Likewise.
 330         (main): Pass -fno-exceptions to sub-compile.  Also do collection
 331         if there are any frame entries.
 332         (write_c_file_stat): Call __register_frame_table and
 333         __deregister_frame as needed.
 334         (write_c_file_glob): Likewise.
 335
 336         * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
 337         Also require unaligned reloc support.
 338         * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
 339         UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
 340         * sparc/sysv4.h: Not here.
 341
 342         * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
 343         * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
 344         (dwarf2out_finish): Don't call dwarf2out_frame_finish.
 345
 346         * libgcc2.c (L_eh): Reorganize, moving code shared by different
 347         EH implementations to the top.
 348         (find_exception_handler): Split out.  Start from 0.  Compare against
 349         end with >=.
 350         (__find_first_exception_table_match): Use it.
 351         * except.c (output_exception_table): Don't do anything if there's
 352         no table.  Don't output a first entry of zeroes.
 353         (eh_outer_context): Adjust properly.
 354         (add_eh_table_entry): Use xrealloc.
 355         * toplev.c (compile_file): Just call output_exception_table.
 356
 357 Wed Sep 10  11:30:36 1997  Jason Merrill  <jason@cygnus.com>
 358
 359         * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
 360
 361 Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 362
 363         * except.c (eh_outer_context): Do masking using expand_and.
 364
 365 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
 366
 367         Add port done awhile ago for the ARC cpu.
 368         * arc/arc.h: New file.
 369         * arc/arc.c: New file.
 370         * arc/arc.md: New file.
 371         * arc/initfini.c: New file.
 372         * arc/lib1funcs.asm: New file.
 373         * arc/t-arc: New file.
 374         * arc/xm-arc.h: New file.
 375         * ginclude/va-arc.h: New file.
 376         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
 377         * ginclude/varargs.h: Likewise.
 378         * Makefile.in (USER_H): Add va-arc.h.
 379         * configure.in (arc-*-elf*): Recognize.
 380         * longlong.h: Add ARC support.
 381
 382 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
 383
 384         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
 385         when clearing non-BLKmode data.
 386
 387 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 388
 389         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
 390         * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
 391
 392         * xm-m88k.h (USG): Only define if it hasn't already been defined.
 393
 394         * Makefile.in (risky-stage1): Delete gratutious whitespace.
 395
 396         * Makefile.in (clean): Delete libgcc1-test.
 397
 398         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
 399
 400 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
 401
 402         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
 403         template.
 404
 405 Tue Sep  9 09:50:02 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 406
 407         * dwarf2out.c (output_call_frame_info): Call named_section.
 408
 409 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
 410
 411         * haifa-sched.c (print_value): Fix last change.
 412
 413 Tue Sep  9 01:30:37 1997  Jason Merrill  <jason@yorick.cygnus.com>
 414
 415         * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
 416         write_symbols.
 417
 418 Mon Sep  8 16:32:43 1997  Jason Merrill  <jason@yorick.cygnus.com>
 419
 420         * mips.c (function_prologue): Set up the CFA when ABI_32.
 421
 422         * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
 423         for dwarf2 unwind info.
 424         (output_function_prologue, sparc_flat_output_function_prologue): Same.
 425
 426         * final.c (final_end_function): Check dwarf2out_do_frame instead
 427         of DWARF2_DEBUG for dwarf2 unwind info.
 428         (final_scan_insn): Likewise.
 429         (final_start_function): Likewise.  Initialize dwarf2 frame debug here.
 430         (final): Not here.
 431
 432         * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
 433         count > 0.
 434
 435         * varasm.c (exception_section): Check EXCEPTION_SECTION first.
 436
 437 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
 438
 439         * v850.h (ASM_SPEC): Pass on target processor.
 440         (CPP_PREDEFINES): Only define if not already specified.
 441         (TARGET_VERSION): Only define if not already specified.
 442         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
 443         processor.
 444         (EXTRA_SWITCHES): Extra entries in the switches array.
 445         (TARGET_DEFAULT): Set default target processor.
 446
 447 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
 448
 449         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
 450         cases, add %# and %/, and add : to make them into extended asms.
 451
 452 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
 453
 454         * alias.c (init_alias_analysis): Clean up incompatible pointer
 455         type warning in bzero.
 456         * regmove.c (regmove_optimize): Ditto.
 457         * haifa-sched.c (find_rgns): Ditto.
 458
 459         * haifa-sched.c (print_value): Clean up ptr->int cast
 460         warnings.
 461
 462 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
 463
 464         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
 465         * install.texi (Configurations): Ditto.
 466         * config.sub: Ditto.
 467
 468 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
 469
 470         * Makefile.in (sdbout.o): Depend on insn-config.h.
 471
 472 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
 473
 474         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
 475         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
 476
 477 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
 478
 479         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
 480         prologue insn, only the first elt is significant.
 481         (output_call_frame_info): For exception handling, always use 4-byte
 482         fields as specified by the dwarf2 spec.
 483         Don't skip trivial FDEs.
 484
 485 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
 486
 487         * version.c: Bump for snapshot.
 488
 489 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
 490
 491         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 492         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 493         when op1_is_pow2.
 494
 495 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 496
 497         * final.c (shorten_branches): During first pass, assume worst
 498         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 499
 500         * Makefile.in (distclean): Remove various things left around
 501         by running the testsuite.
 502
 503 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 504
 505         * configure.in (out_file): Emit definition to config.status in order
 506         to have a defined value for configure.lang.
 507         * configure: Re-built.
 508
 509 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 510
 511         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 512         for ld-new.
 513         * configure: Rebuilt.
 514
 515 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 516
 517         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 518
 519 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 520
 521         * sparc/sparc.md: Add ultrasparc scheduling support.
 522         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 523
 524 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 525
 526         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 527         as initial value for real_label_map.
 528         (copy_for_inline): Likewise.
 529
 530 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 531
 532         * sched.c (update_flow_info) When looking if to set found_split_dest
 533         or found_orig_dest, look at all parts of a PARALLEL.
 534         * haifa-sched.c (update_flow_info): Likewise.
 535
 536 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 537
 538         * v850: New directory for v850 port.
 539         * v850/lib1funcs.asm: New file.
 540         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 541         * ginclude/va-v850.h: New file.
 542         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 543         * configure.in (mn10200-*-*): New target.
 544         * configure: Rebuilt.
 545         * config.sub: Handle v850-elf.
 546         * Makefile.in (USER_H): Add va-mn10200.h.
 547         * invoke.texi: Document v850 stuff.
 548
 549 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 550
 551         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 552         has integer TYPE_{MAX,MIN}_VALUE before using them.
 553
 554         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 555         __HPUX_ASM__ versions.
 556
 557 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 558
 559         * install.sh: Delete duplicate install script.
 560
 561 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 562
 563         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 564         computed goto which sets the same stack register.
 565
 566         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 567         destination are both on the regstack.
 568         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 569
 570 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 571
 572         * mips.md (nonlocal_goto_receiver): Define.
 573
 574         * profile.c (output_arc_profiler): Check next_insert_after for non
 575         NULL before deferencing it.
 576
 577         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 578
 579 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 580
 581         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 582
 583 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 584
 585         * toplev.c (rest_of_compilation): For passes starting with
 586         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 587
 588         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 589         file.
 590
 591         * flow.c (print_rtl_with_bb): Print which insns start and end
 592         basic blocks.  For the start of a basic block, also print the live
 593         information.
 594
 595 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 596
 597         * toplev.c (main): Change #elif to #else/#ifdef
 598
 599         * tlink.c: Include ctype.h.
 600         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 601
 602 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 603
 604         * bitmap.c: Conditionally include stdlib.h.
 605         (free): Provide a declaration if NEED_DECLARATION_FREE.
 606
 607 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 608
 609         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 610
 611 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 612
 613         * profile.c (output_arc_profiler): Verify next_insert_after is an
 614         INSN before and after skipping a stack pop.
 615
 616 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 617
 618         * final.c (shorten_branches): Don't count the lengths of deleted
 619         instructions.
 620
 621 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 622
 623         * version.c: Bump for snapshot.
 624
 625 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 626
 627         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 628         two bitmaps ANDed together.
 629         (bitmap_print): Declare.
 630
 631         * bitmap.c (function_obstack): Don't declare any more.
 632         (bitmap_obstack): Obstack for allocating links from.
 633         (bitmap_obstack_init): New static to say whether to initialize
 634         bitmap_obstack.
 635         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 636         (bitmap_release_memory): Free all memory allocated from
 637         bitmap_obstack.
 638
 639         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 640         EXECUTE_IF_AND_IN_BITMAP.
 641
 642 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 643
 644         * alias.c (true_dependence): Address with AND can alias scalars.
 645         (anti_dependence, output_dependence): Likewise.
 646
 647         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 648
 649 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 650
 651         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 652           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 653           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 654           definitions.  Use -qrtems instead of -mrtems.
 655
 656 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 657
 658         * xm-sco5.h (sys_siglist): Define.
 659         (SYS_SIGLIST_DECLARED): Likewise.
 660
 661 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 662
 663         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 664
 665 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 666
 667         * except.c (eh_outer_context): Expand masking operation using
 668         expand_binop.
 669
 670 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 671
 672         * alpha.md (floatdisf2-1): New pattern.
 673
 674 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 675
 676         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 677         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 678         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 679         * gcc.texi: Note that if you define sys_siglist that you should
 680         also define SYS_SIGLIST_DECLARED.
 681
 682         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 683         are relative to the next instruction, not the current instruction.
 684
 685 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 686
 687         * local-alloc.c (contains_replace_regs): New function.
 688         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 689         verify that there is no existing REG_EQUIV note, and add a call to
 690         contains_place_regs.
 691
 692 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 693
 694         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 695         (STARTFILE_SPEC): Always use crtbegin.o%s
 696         (ENDFILE_SPEC): Always use crtend.o%s.
 697
 698 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 699
 700         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 701         is passed in.
 702         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 703         SFmode for 64 bit hosts.
 704
 705 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 706
 707         * fixincludes: Permits spaces between # and define.  Discard C++
 708         comments in sys/pci.h on HP/UX 10.20.
 709
 710 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 711
 712         * version.c: Bump for snapshot.
 713
 714         * pa.c (restore_unscaled_index_insn_codes): New function.
 715         (record_unscaled_index_insn_codes): Likewise.
 716         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 717         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 718         (pa_reorg): Call record_unscaled_index_insn_codes.
 719
 720         * haifa-sched.c (move_insn): Handle notes correctly for insns
 721         with SCHED_GROUP_P set.
 722
 723 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 724
 725         * alpha/xm-linux.h (USE_BFD): Undef before define.
 726
 727 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 728
 729         * cse.c (cse_insn): Don't record BLKmode values.
 730
 731 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 732
 733         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 734
 735 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 736
 737         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 738         * collect2.c (sys_errlist): Likewise.
 739         * cpplib.c (sys_errlist): Likewise.
 740         * gcc.c (sys_errlist): Likewise.
 741         * protoize (sys_errlist): Likewise.
 742         * configure.in: Check for strerror.
 743         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 744         * xm-gnu.h (HAVE_STRERROR): Likewise.
 745         * xm-linux.h (HAVE_STRERROR): Likewise.
 746         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 747         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 748         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 749         * xm-dos.h (HAVE_STRERROR): Likewise.
 750         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 751         * xm-pa.h (HAVE_STRERROR): Likewise.
 752         * xm-papro.h (HAVE_STRERROR): Likewise.
 753         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 754         * configure, config.in: Rebuilt.
 755
 756         * Makefile.in: Add several missing "else true" clauses.
 757
 758         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 759         * mips-tfile.c: Likewise.
 760         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 761         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 762         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 763         * configure.in: Check for sys_siglist declaration.
 764         * configure, config.in: Rebuilt.
 765
 766 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 767
 768         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 769         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 770         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 771         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 772         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 773         macro EXTRA_SUBTARGET_SWITCHES.
 774         * configure.in (sh*-*-rtems*): New target.
 775         * sh/rtems.h: New file.
 776         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 777         * configure: Rebuilt.
 778
 779 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 780
 781         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 782
 783 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 784
 785         * rs6000.md: Make DF fused-add operations pay attention to
 786         -mno-fused-add.
 787
 788 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 789
 790         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 791
 792 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 793
 794         * pa.md (reload_peepholes): Make sure operand is a REG before
 795         examining REGNO.  Allow general registers too.
 796
 797 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 798
 799         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 800
 801 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 802
 803         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 804         to reallocate abbrev_die_table.
 805
 806 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 807
 808         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 809
 810 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 811
 812         * Makefile.in (config.status): Depend on version.c
 813
 814         * expr.h (insn_gen_function): Reenable prototype.
 815
 816         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 817         first parameter.
 818
 819 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 820
 821         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 822
 823 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 824
 825         * version.c: Bump for latest snapshot.
 826
 827         * bc-optab.c: Conditionally include stdlib.h.
 828         (free): Provide a declaration if NEED_DECLARATION_FREE.
 829         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 830         * rtl.h (free): Remove declaration.
 831         * tree.h (free): Remvoe declaration.
 832
 833         * configure: Rebuilt.
 834
 835 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 836
 837         * flags.h (flag_move_all_movables): Declare.
 838         (flag_reduce_all_givs): Likewise.
 839         * loop.c (move_movables): Handle flag_move_all_movables.
 840         (strength_reduce): Handle flag_reduce_all_givs.
 841         * toplev.c (flag_move_all_movables): Define.
 842         (flag_reduce_all_givs): Likewise.
 843         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 844         * invoke.texi: Document new options, including alias stuff that
 845         wasn't included last time.
 846
 847 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 848
 849         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 850         * t-mn10200: Ditto.
 851         * t-vxsparc: Ditto.
 852         * t-vxworks68: Ditto.
 853         * t-vxworks960: Ditto.
 854         * t-vx29k: Ditto.
 855
 856 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 857
 858         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 859         if not already defined, and USE_C_ALLOCA not defined.
 860
 861 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 862
 863         * config.guess: Replace with script that uses ../config.guess.
 864
 865         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 866         if USE_GNULIBC_1 is not defined.
 867
 868 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 869
 870         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 871         * config.guess: Recognize alpha-linux-gnulibc1.
 872         * configure.in (alpha-*-linux-gnulibc1): New target.
 873         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 874
 875 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 876
 877         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 878         last change.
 879
 880 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 881
 882         * loop.c (combine_movables): Earlier insns don't match later ones.
 883
 884 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 885
 886         * config/linux.h (CC1_SPEC): Define it only if not defined.
 887
 888         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 889         <linux.h>
 890
 891         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 892         USE_GNULIBC_1 is not defined.
 893
 894         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 895
 896         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 897         as 1 if USE_GNULIBC_1 is not defined.
 898
 899 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 900
 901         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 902         to be something other than a REG.
 903         * function.c (expand_function_end): Fix current_function_return_rtx
 904         if it was a pseudo.
 905
 906         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 907         * x-netbsd: Likewise
 908         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 909         (INSTALL_HEADERS): Delete.
 910         * x-dguxbcs: Likewise.
 911         * x-hp3bsd44: Likewise
 912         * x-pa: Likewise.
 913
 914 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 915
 916         * i386.md (pop): pop increments the stack pointer.
 917         (prologue_set_stack_ptr): New pattern.
 918         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 919         instead of subsi3.
 920
 921 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 922
 923         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 924         address where an offsettable address is required.
 925
 926 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 927
 928         * loop.c (check_final_value): Don't miss a biv increment in a
 929         parallel.
 930
 931 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 932
 933         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 934         TYPE_DECL_IS_STUB instead of DECL_NAME.
 935
 936 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 937
 938         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 939
 940 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 941
 942         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 943
 944 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 945
 946         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
 947         (find_post_sched_live): Likewise.
 948
 949         * haifa-sched.c (schedule_block): Remove old code to get arguments
 950         from hard regs into pseudos early.
 951
 952 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
 953
 954         * version.c: Bump for new snapshot.
 955
 956         * local-alloc.c (update_equiv_regs): All the target to reject
 957         promotion of some REG_EQUAL to REG_EQUIV notes.
 958         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
 959
 960         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
 961         secondary reloads.
 962
 963         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
 964         store of the argument registers.
 965
 966 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
 967
 968         * fold-const.c (multiple_of_p): New function.
 969         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
 970
 971 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
 972
 973         * expr.h (insn_gen_function): Temporarily remove prototype.
 974
 975 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
 976
 977         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
 978         filenames.  Use sed to extract base filename for install.
 979
 980 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
 981
 982         * unroll.c (find_splittable_givs): Only share if two givs have the
 983         same add and multiply values.
 984
 985 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
 986
 987         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
 988         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
 989
 990 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
 991
 992         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
 993         around branch tables.
 994         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
 995         and .end_brtab directives if TARGET_GAS.
 996
 997 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
 998
 999         * alias.c (true_dependence): Pass x_addr not x to varies.
1000
1001         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
1002         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
1003         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
1004         declarations.
1005         * config.in, configure: Regenerate.
1006
1007 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
1008
1009         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
1010         LO_SUM.
1011         (record_set): Handle LO_SUM like PLUS.
1012         (init_alias_analysis): When following chains of base addresses,
1013         do not stop on reaching a hard register.
1014
1015 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
1016
1017         * version.c: Bump for new snapshot.
1018
1019 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
1020
1021         * alpha.h (ARCH_ASM_FILE_START): Define.
1022         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
1023         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
1024
1025 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
1026
1027         * Makefile.in (install-common): Put gcov comment at start of line.
1028
1029 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
1030
1031         * alias.c (init_alias_analysis): When simplifying the reg_base_value
1032         array, simplify entries for hard registers too.
1033
1034 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
1035
1036         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
1037         list.
1038
1039 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
1040
1041         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
1042         block_stack before dereferencing it.
1043
1044 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
1045
1046         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
1047
1048 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
1049
1050         * cplus-dem.c: Add 'extern' to prepends_underscore.
1051
1052 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
1053
1054         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
1055         (get_issue_rate): Delete.
1056         * pa.h (ISSUE_RATE): Define.
1057
1058         * configure.in: Turn on haifa by default for the PA.
1059         * configure: Rebuilt.
1060         * pa.c (override_options): Accept -mschedule=7200 option.
1061         (pa_adjust_cost): No longer need to scale costs for newer
1062         processors.
1063         * pa.h (enum processor_type): Add PROCESSOR_7200.
1064         * pa.md: Revamp scheduling parameters to work better with
1065         haifa.  Add scheduling parameters for the 7200.
1066
1067         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1068         insns too.
1069         (schedule_block): When adjusting basic_block_{head,end}, account
1070         for movement of SCHED_GROUP_P insns too.
1071
1072         * haifa-sched.c (debug_dependencies): Fix thinko.
1073
1074         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1075         (site.exp, check, check-g++, check-gcc): New targets.
1076
1077         * haifa-sched.c: Make lots of variables static.
1078
1079 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
1080
1081         * expr.h, real.h: Finish prototyping.
1082
1083 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
1084
1085         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1086         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1087         * reload1.c: Undo bugfix from Aug 11.
1088
1089 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
1090
1091         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1092         quotes around the name.
1093         * configure: Regenerate.
1094
1095 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
1096
1097         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1098
1099 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
1100
1101         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1102         to sub-makes to avoid building more passes than the user might have
1103         requested on the command line.
1104
1105 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
1106
1107         * configure.in: Expurgate `broken_install' (install is
1108         autoconfed).
1109
1110         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1111         relevant).
1112
1113 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
1114
1115         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1116         functions and declarations.
1117         (analyze_loop_iterations): Use condjump_p.
1118         (insert_bct): Likewise.  Use exact_log2.
1119
1120 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
1121
1122         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1123         (schedule_region): Likewise.
1124         (schedule_insns): Likewise.
1125
1126         * PROJECTS: Update with Haifa stuff.
1127
1128 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
1129
1130         * version.c: Change the version string to look like:
1131         egcs-2.90.00 970814 (gcc2-970802 experimental).
1132
1133         * loop.c (is_conditional_branch): Make definition match declaration.
1134
1135         * gcc.c: Take out experimental snapshot warning message.
1136
1137 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
1138
1139         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1140         print out the names of the notes.  Print out the name of the insn
1141         that is not a note, and not an {,CALL_,JUMP_}INSN.
1142
1143 Wed Aug 13 17:32:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
1144
1145         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1146         again for the slot after we give it RTL.
1147
1148 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
1149
1150         * configure.in (haifa configury): Fix typo.
1151         * configure: Regenerate.
1152
1153 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
1154
1155         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1156
1157         * gcc.info*: Rebuilt.
1158
1159         * COPYING.g77, README.g77: New files.
1160         * real.c (ereal_unto_float, ereal_unto_double): New functions.
1161         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1162         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1163
1164 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
1165
1166         * Integrate Haifa instruction scheduler.
1167         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
1168         to sched with $(SCHED_CFLAGS.
1169         * configure.in: Handle --enable-haifa.
1170         * configure: Rebuilt.
1171         * flags.h: Add new flags for haifa instruction scheduler.
1172         * genattrtab.c (expand_units): For haifa, don't subtract one
1173         when computing blockage.
1174         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1175         (flag_schedule_speculative): Ditto.
1176         (flag_schedule_speculative_load): Ditto.
1177         (flag_schedule_speculative_load_dangerous): Ditto.
1178         (flag_schedule_reverse_before_reload): Ditto.
1179         (flag_schedule_reverse_after_reload): Ditto.
1180         (flag_branch_on_count_reg): Ditto.
1181         (f_options): Add Haifa switches.
1182         (main): Turn off some Haifa options if appropriate macro is
1183         defined.  Process Haifa switches.
1184         * unroll.c (iteration_info): No longer static, since Haifa
1185         scheduler uses it.
1186         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1187         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1188         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1189         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1190         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1191         storage for the Haifa scheduler.
1192         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1193         LABEL_NEXTREF.
1194         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1195         are defined, call analyze_loop_iterations and insert_bct to use
1196         countdown loops.
1197         (record_giv): Refine test for jumps out of loops if HAIFA is
1198         defined.
1199         (analyze_loop_iterations): New function to identify if we can use
1200         a countdown loop.
1201         (insert_bct): Insert countdown loop.
1202         (instrument_loop_bct): Low level code to insert countdown loop.
1203         (loop_number): Calculate UID of loop.
1204         (indirect_jump_in_function_p): Return true if an indirect jump is
1205         in the function.
1206         (is_power_of_2): Return true if value is a power of 2.
1207         (is_conditional_branch): Return true if insn is a conditional
1208         jump.
1209         (fix_bct_param): Process -fbct-{min,max}-N switches.
1210         (check_bct_param): Return true if loop should be instrumented.
1211         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1212         (loop_optimize): Initialize.
1213         (get_condition_for_loop): Ditto.
1214         * loop.c (strength_reduce): Inside of code that uses #ifdef
1215         HAVE_decrement_and_branch_on_count code, test it to make sure the
1216         condition is true.
1217         (instrument_loop_bct): Ditto.
1218         * haifa-sched.c: New file.
1219
1220
1221         * Integrate regmove pass.
1222         * Makefile.in (OBJS): Add regmove.o
1223         (regmove.o): Add dependencies.
1224         * flow.c (find_use_as_address): No longer static.
1225         * rtl.h (find_use_as_address): Declare.
1226         * toplev.c (regmove_dump, flag_regmove): Define.
1227         (f_options): Add -fregmove.
1228         (regmove_dump_file, regmove_time): Define.
1229         (fatal_insn): Close the regmove dump file.
1230         (compile_file): Initialize regmove_time; open/close the regmove dump
1231         file as needed.  Print regmove time as needed.
1232         (rest_of_compilation): Run regmove pass if requested, dump
1233         RTL after regmove if requested.
1234         (main): If -O2 or more, turn on regmove.  Handle dump switches.
1235         * regmove.c: New file.
1236
1237 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
1238
1239         * Integrate tlink patch from jason@cygnus.com
1240         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1241         (process_command): Increment n_switches for them.  Don't discard
1242         their args.  Validate them.
1243         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1244         From Rohan Lenard.
1245         (process_command): Set include_prefixes from COMPILER_PATH.
1246         (main): Set COLLECT_GCC_OPTIONS sooner.
1247         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1248         * tlink.c, hash.c, hash.h: New files.
1249         * Makefile.in (USE_COLLECT2): Always use collect2.
1250         (collect2): Depend on and link in hash.o and tlink.o.
1251         (tlink.o, hash.o): Add dependencies.
1252
1253 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
1254
1255         * Integrate alias analysis changes from jfc@mit.edu
1256         * Makefile.in (OBJS): Add alias.o
1257         (alias.o): Add dependencies.
1258         * alias.c: New file.
1259         * sched.c: Remove alias analysis code.  It lives in alias.c now.
1260         (sched_analyze_2): Add new arguments to true_dependence.
1261         (schedule_insns): Always call init_alias_analysis.
1262         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1263         mark return value from such functions as a pointer and keep track of
1264         them for alias analysis.  If a return value from a function is a
1265         pointer, mark it as such.
1266         * combine.c (distribute_notes): Handle REG_NOALIAS.
1267         * cse.c (struct write_data): Delete.  No longer needed.
1268         (invalidate): Don't call set_nonvarying_address_components anymore.
1269         Use true_dependence to decide if an entry should be removed from
1270         the hash table.
1271         (invalidate_memory): Remove WRITES argument, simplify appropriately.
1272         Fix all callers.
1273         (note_mem_written): Similarly for WRITE_PTR argument.
1274         (invalidate_from_clobbers): Similarly for W argument.
1275         (invalidate_for_call): Remove memory elements from the hash table.
1276         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1277         (cse_rtx_varies_p): New function.  Derived from old
1278         cse_rtx_addr_varies_p.
1279         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1280         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
1281         pointer if PUSH_ROUNDING is defined.  No longer need to call
1282         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1283         (skipped_writes_memory): Remove variable.
1284         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1285         (invalidate_skipped_block): Simplify for new alias analysis code.
1286         (cse_set_around_loop): Likewise.
1287         (cse_main): Call init_alias_analysis.
1288         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1289         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1290         (f_options): Add new alias checking arguments.
1291         (main): Set flag_alias_check when optimizing.
1292         * local_alloc (validate_equiv_mem_from_store): Add new arguments
1293         to true_dependence.
1294         (memref_referenced_p): Likewise.
1295         * loop.c (NUM_STORES): Increase to 30.
1296         (prescan_loop): Only non-constant calls set unknown_address_altered.
1297         (invariant_p): Add new arguments to true_dependence.
1298         (record_giv): Initialize unrolled and shared fields.
1299         (emit_iv_add_mult): Call record_base_value as needed.
1300         * loop.h (struct induction): Add unrolled and shared fields.
1301         * unroll.c  (unroll_loop): Call record_base_value as needed.
1302         (copy_loop_body): Likewise.
1303         (final_biv_value): Likewise.
1304         (final_giv_value): Likewise.
1305         (find_splittable_regs): Likewise.  Only create one new pseudo
1306         if we have multiple address GIVs that were combined with the same
1307         dst_reg GIV.  Note when a new register is created due to unrolling.
1308         * rtl.c (reg_note_name): Add REG_NOALIAS.
1309         * rtl.h (enum reg_note): Similarly.
1310         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1311         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1312         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1313         (true_dependence, read_dependence, anti_dependence): Likewise.
1314         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1315         (mark_user_reg, mark_reg_pointer): Likewise.
1316
1317
1318         * Integrate reload bugfix from Wilon which enables the PA port
1319         to bootstrap again.
1320         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1321         OPERAND_ADDRESS when computing how many registers an insn needs.
1322         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1323         conflict.
1324         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1325         OPADDR_ADDR reload.
1326         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1327         in reload_reg_use_in_op_addr do not reach the end.
1328         do not reach the end.
1329         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1330         RELOAD_FOR_OPERAND_ADDRESS.
1331
1332 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
1333
1334         * egcs project officially starts.
1335