gcc/ChangeLog

   1 Sun Sep 21 17:45:45 1997  Jeffrey A Law  (law@cygnus.com)
   2
   3         * loop.c (loop_number): Delete function.  Change all references
   4         to use uid_loop_num array.
   5         * loop.h (loop_number): Delete declaration.
   6         * unroll.c (unroll_loop): Change "loop_number" references to
   7         use uid_loop_num instead.
   8
   9         * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
  10         conditional.
  11         (loop_unroll_iter): Remove unused variable and all references.
  12         (loop_optimize): Always allocate and clear space for loop_unroll_factor.
  13         (insert_bct): Fix minor formatting problems.
  14         * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
  15         (loop_unroll_iter): Removed unused decl.
  16         * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
  17         Always record the unrolling factor.
  18
  19         * cse.c (simplify_relational_operation): Set h0u just like h0s.
  20         Similarly for h1u and h1s.
  21
  22         * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
  23         (find_basic_blocks): Use computed_jump_p to determine if a
  24         particular JUMP_INSN is a computed jump.
  25         * reg-stack.c (find_blocks): Use computed_jump_p to determine
  26         if a particular JUMP_INSN is a computed jump.
  27         * rtlanal.c (jmp_uses_reg_or_mem): New function.
  28         (computed_jump_p): Likewise.
  29         * rtl.h (computed_jump_p): Declare.
  30         * genattrtab.c (pc_rtx): Define and initialize.
  31         * loop.c (loop_optimize): Always determine if the current
  32         function has a computed jump.
  33         (indirect_jump_in_function_p): Use computed_jump_p to determine
  34         if a particular JUMP_INSN is a computed jump.
  35
  36         * loop.c (fix_bct_param): Delete unused function.
  37         (check_bct_param): Likewise.
  38
  39 Sat Sep 20 16:22:06 1997  Jason Merrill  <jason@yorick.cygnus.com>
  40
  41         * frame.c (__deregister_frame): Check properly for initialized object.
  42
  43 Fri Sep 19 20:51:03 199  H.J. Lu  (hjl@gnu.ai.mit.edu)
  44
  45         * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
  46
  47 Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
  48
  49         * jump.c (thread_jumps): check can_reverse_comparison_p before
  50         threading a reversed-condition jump.
  51
  52         * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
  53         * haifa-sched.c (update_flow_info): Likewise.
  54
  55 Thu Sep 18 21:13:40 1997  Jeffrey A Law  (law@cygnus.com)
  56
  57         * Makefile.in (BOOT_CFLAGS): Use -O2.
  58
  59         * configure.in (strtoul, bsearch): Have autoconf check for these
  60         functions.
  61         * configure, config.in: Rebuilt.
  62
  63         * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
  64         * mips/mips.h (alloca): Likewise.
  65         * rs6000/xm-rs6000.h (alloca): Likewise.
  66         * rs6000/xm-sysv4.h: Likewise.
  67
  68 Thu Sep 18 14:22:22 1997  Jason Merrill  <jason@yorick.cygnus.com>
  69
  70         * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
  71         * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
  72         (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
  73
  74         * except.c (end_eh_unwinder): Subtract 1 from return address.
  75         * libgcc2.c (__throw): Likewise.
  76         (find_exception_handler): Don't change PC here.  Compare end with >.
  77
  78 Thu Sep 18 10:43:07 1997  Nick Clifton  <nickc@cygnus.com>
  79
  80         * v850.c (compute_register_save_size): Correct register
  81         number.
  82         * v850.md (save_interrupt, return_interrupt): Correct
  83         register number.
  84         * v850/lib1funcs.asm (save_interrupt): Correct register number.
  85         (return_interrupt): Use stack pointer, not element pointer.
  86
  87 1997-09-18  Brendan Kehoe  <brendan@lisa.cygnus.com>
  88
  89         * configure.in, configure: Make sure to create the stage* and include
  90         symbolic links in each subdirectory.
  91
  92 Thu Sep 18 01:47:06 1997  Jeffrey A Law  (law@cygnus.com)
  93
  94         * pa.md (reload_peepholes): Don't allow addresses with side
  95         effects for the memory operand.
  96
  97 Wed Sep 17 18:19:53 1997  Jason Merrill  <jason@yorick.cygnus.com>
  98
  99         * libgcc2.c (find_exception_handler): Subtract one from our PC when
 100         looking for a handler, to avoid hitting the beginning of the next
 101         region.
 102
 103         * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
 104
 105 Wed Sep 17 18:33:59 1997  Jeffrey A Law  (law@cygnus.com)
 106
 107         * mips/abi64.h (LONG_MAX_SPEC): Define.
 108         * mips.h (LONG_MAX_SPEC): Define.
 109         (CPP_SPEC): Include long_max_spec.
 110         (EXTRA_SPECS): Include long_max_spec.
 111
 112 Wed Sep 17 14:11:38 1997  Jeffrey A Law  (law@cygnus.com)
 113
 114         * v850.c (construct_save_jarl): Fix thinko in last change.
 115
 116 Wed Sep 17 09:53:07 1997  Jeffrey A Law  (law@cygnus.com)
 117
 118         * version.c: Bump for snapshot.
 119
 120 Tue Sep 16 14:22:36 1997  Jason Merrill  <jason@yorick.cygnus.com>
 121
 122         * libgcc2.c (find_exception_handler): Not found is -1.
 123
 124         * integrate.c (expand_inline_function): Move expand_start_bindings
 125         after expanding the arguments.
 126
 127 Tue Sep 16 11:13:46 1997  Jim Wilson  <wilson@cygnus.com>
 128
 129         * expr.c (expand_expr): Remove previous incorrect change.
 130         If target and slot has no DECL_RTL, then call mark_addressable
 131         again for the slot after we give it RTL.
 132
 133 Tue Sep 16 09:18:52 1997  Jason Merrill  (jason@cygnus.com)
 134
 135         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
 136         again for the slot after we give it RTL.
 137
 138 Tue Sep 16 00:13:20 1997  Nick Clifton  <nickc@cygnus.com>
 139
 140         * v850.c (register_is_ok_for_epilogue,
 141         pattern_is_ok_for_epilogue, construct_restore_jr,
 142         pattern_is_ok_for_prologue, construct_save_jarl): New functions.
 143
 144         * v850.h (pattern_is_ok_for_prologue,
 145         pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
 146         predicates.
 147
 148         * v850.md: Replace prologue and epilogue patterns with a
 149         match_parallel pattern.
 150
 151 Mon Sep 15 22:53:01 1997  Jeffrey A Law  (law@cygnus.com)
 152
 153         * aclocal.m4: Add replacement for AC_PROG_INSTALL.
 154         * configure.in: Use EGCS_PROG_INSTALL.
 155
 156 Mon Sep 15 22:40:55 1997  Jim Wilson  (wilson@cygnus.com)
 157
 158         * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
 159         extern inline function.
 160
 161 Mon Sep 15 22:40:55 1997  Richard Henderson  (rth@cygnus.com)
 162
 163         * dwarf2out.c (reg_loc_descriptor): Fix prototype.
 164         (concat_loc_descriptor): New function.
 165         (loc_descriptor): Call it.
 166         (add_AT_location_description): Also elide the descriptor if both
 167         halves of a CONCAT are pseudos.
 168         (add_location_or_const_value_attribute): Recognize CONCAT too.
 169
 170 Mon Sep 15 15:24:00 1997  Richard Henderson  <rth@cygnus.com>
 171
 172         * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
 173
 174         * alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
 175         out-or-range reg_offset.
 176         (output_epilog): Likewise.
 177
 178 Mon Sep 15 15:39:26 1997  Jeffrey A Law  (law@cygnus.com)
 179
 180         * cse.c (simplify_relational_operation): If MODE specifies a
 181         mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
 182         is derived from the sign bit of the low word.
 183
 184 Mon Sep 15 11:43:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
 185
 186         Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
 187
 188         * dwarf2.h: Add DW_CFA_GNU_args_size.
 189         * frame.c (execute_cfa_insn): Likewise.
 190         * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
 191         (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
 192         (dwarf2out_frame_debug): If this isn't a prologue or epilogue
 193         insn, hand it off to dwarf2out_stack_adjust.
 194         (dwarf2out_begin_prologue): Initialize args_size.
 195         * frame.h (struct frame_state): Add args_size.
 196         * libgcc2.c (__throw): Use args_size.
 197         * final.c (final_scan_insn): If we push args, hand off all insns
 198         to dwarf2out_frame_debug.
 199         * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
 200
 201         * dwarf2out.c dwarf2out_frame_debug): Fix typo.
 202         Handle epilogue restore of SP from FP.
 203         * emit-rtl.c (gen_sequence): Still generate a sequence if the
 204         lone insn has RTX_FRAME_RELATED_P set.
 205
 206         * frame.c (extract_cie_info): Handle "e" augmentation.
 207         * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
 208         absence of UNALIGNED_*_ASM_OP.
 209         (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
 210         (output_call_frame_info): Use "e" instead of "z" for augmentation.
 211         Don't emit augmentation fields length.
 212         (dwarf2out_do_frame): Move outside of #ifdefs.
 213         * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
 214         opcodes.
 215
 216         * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
 217         * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
 218         * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
 219         * sparc/sun4gas.h: New file.
 220         * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
 221
 222         * collect2.c (write_c_file_stat, write_c_file_glob): Declare
 223         __register_frame_table and __deregister_frame.
 224
 225 1997-09-15  Brendan Kehoe  <brendan@cygnus.com>
 226
 227         * except.c (find_exception_handler_labels): Use xmalloc instead of
 228         alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
 229         in some cases.
 230
 231 Sun Sep 14 21:01:23 1997  Jeffrey A Law  (law@cygnus.com)
 232
 233         * Makefile.in: Various changes to build info files
 234         in the object tree rather than the source tree.
 235
 236 Sun Sep 14 12:24:30 1997  Jeffrey A Law  (law@cygnus.com)
 237
 238         * fixinc.math: New file to fix math.h on some systems.
 239         * configure.in (freebsd, netbsd): Use fixinc.math on these
 240         systems.
 241         * configure: Rebuilt.
 242
 243 Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
 244
 245         * regmove.c (regmove_optimize): If we end up moving the
 246         original insn due to lifetime overlaps, make sure to move
 247         REG_NOTES too.
 248
 249 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 250
 251         * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
 252
 253 Sat Sep 13 12:57:26 1997  Jeffrey A Law  (law@cygnus.com)
 254
 255         * haifa-sched.c (add_branch_dependences): Make each insn in
 256         a SCHED_GROUP_P block explicitly depend on the previous insn.
 257
 258 Fri Sep 12 13:49:58 1997  Jason Merrill  <jason@yorick.cygnus.com>
 259
 260         * except.h: Prototype dwarf2 hooks.
 261         * expr.c: Adjust.
 262
 263 Thu Sep 11 17:43:55 1997  Jim Wilson  <wilson@cygnus.com>
 264
 265         * configure.in (native_prefix): Delete.
 266         (mips-dec-netbsd): Don't set prefix.
 267         (*linux*): Don't set prefix.
 268
 269 Thu Sep 11 15:48:32 1997  Fred Fish  <fnf@ninemoons.com>
 270
 271         * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
 272         defined.  If not defined, include <sys/varargs.h> if
 273         HAVE_SYS_VARARGS_H is defined.
 274         * configure.in: Test for varargs.h and sys/varargs.h.
 275         * configure: Regenerate with autoconf.
 276         * config.in: Regenerate with autoheader.
 277
 278         * cpplib.c (quote_string): Cast first arg of sprintf call
 279         from "unsigned char *" to "char *".
 280         (output_line_command): Ditto.
 281         (macroexpand): Ditto.
 282         (do_line): Cast atoi arg from "unsigned char *" to "char *".
 283
 284 Wed Sep 10 21:37:30 1997  Jeffrey A Law  (law@cygnus.com)
 285
 286         * version.c: Bump for snapshot.
 287
 288         * Makefile.in (compare): Exit with nonzero status if there
 289         are comparison failures.  Note which files failed the
 290         comparison test in .bad_compare.
 291
 292 Wed Sep 10 17:05:46 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 293
 294         * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
 295
 296 Wed Sep 10 16:37:28 1997  Fred Fish  <fnf@ninemoons.com>
 297
 298         * Makefile.in (LN, LN_S): New macros, use where appropriate.
 299         * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
 300         * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
 301         * configure: Regenerated.
 302
 303 Thu Sep 11 11:09:43 1997  Jeffrey A Law  (law@cygnus.com)
 304
 305         * loop.c (strength_reduce): Fix typo.
 306
 307 Wed Sep 10 16:01:15 1997  Jim Wilson  <wilson@cygnus.com>
 308
 309         * m88k/m88k.c (struct option): Rename to struct options.
 310         * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
 311         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
 312         * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
 313         __DOLPHIN__ or sysV88.
 314
 315 Wed Sep 10 14:58:40 1997  Jim Wilson  <wilson@cygnus.com>
 316
 317         * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
 318         create new subreg.
 319
 320 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 321
 322         * config.sub: Accept 'amigados' for backward compatability.
 323
 324 Wed Sep 10 14:05:08 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 325
 326         * Makefile.in (testsuite/site.exp): New target.
 327         (check-gcc, check-g++): Depend on testsuite/site.exp.
 328         Don't stop for failure.
 329
 330 Wed Sep 10 12:59:57 1997  Jason Merrill  <jason@yorick.cygnus.com>
 331
 332         * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
 333         if DWARF2_UNWIND_INFO.
 334
 335 Wed Sep 10 11:49:20 1997  Jason Merrill  <jason@yorick.cygnus.com>
 336
 337         Add support for exception handling using DWARF 2 frame unwind info.
 338         Currently works on SPARC and MIPS, and almost on x86.
 339
 340         * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
 341         next_stack_level, in_reg_window): Helper fns.
 342         (__throw): Implement for DWARF2_UNWIND_INFO.
 343
 344         * expr.c (expand_builtin): Handle builtins used by __throw.
 345         * tree.h (enum built_in_function): Add builtins used by __throw.
 346         * c-decl.c (init_decl_processing): Declare builtins used by __throw.
 347         * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
 348         * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
 349         (expand_builtin_extract_return_addr): Likewise.
 350         (expand_builtin_frob_return_addr): Likewise.
 351         (expand_builtin_set_return_addr_reg): Likewise.
 352         (expand_builtin_eh_stub): Likewise.
 353         (expand_builtin_set_eh_regs): Likewise.
 354         (eh_regs): Choose two call-clobbered registers for passing back values.
 355
 356         * frame.c, frame.h: New files for parsing dwarf 2 frame info.
 357         * Makefile.in (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
 358         (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
 359         (stmp-multilib): Likewise.
 360         ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
 361
 362         * except.c: #include "defaults.h".
 363         (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
 364         (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
 365         (register_exception_table_p): New fn.
 366         (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
 367         (end_eh_unwinder): Likewise.
 368
 369         * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
 370         call __register_frame and __deregister_frame as needed.
 371         * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
 372         * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
 373         EH_FRAME_SECTION_ASM_OP.
 374         * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
 375         * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
 376         (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
 377
 378         * dwarf2out.c (output_call_frame_info): If no support for
 379         EXCEPTION_SECTION, mark the start of the frame info with a
 380         collectable tag.
 381         * collect2.c (frame_tables): New list.
 382         (is_ctor_dtor): Recognise frame entries.
 383         (scan_prog_file): Likewise.
 384         (main): Pass -fno-exceptions to sub-compile.  Also do collection
 385         if there are any frame entries.
 386         (write_c_file_stat): Call __register_frame_table and
 387         __deregister_frame as needed.
 388         (write_c_file_glob): Likewise.
 389
 390         * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
 391         Also require unaligned reloc support.
 392         * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
 393         UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
 394         * sparc/sysv4.h: Not here.
 395
 396         * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
 397         * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
 398         (dwarf2out_finish): Don't call dwarf2out_frame_finish.
 399
 400         * libgcc2.c (L_eh): Reorganize, moving code shared by different
 401         EH implementations to the top.
 402         (find_exception_handler): Split out.  Start from 0.  Compare against
 403         end with >=.
 404         (__find_first_exception_table_match): Use it.
 405         * except.c (output_exception_table): Don't do anything if there's
 406         no table.  Don't output a first entry of zeroes.
 407         (eh_outer_context): Adjust properly.
 408         (add_eh_table_entry): Use xrealloc.
 409         * toplev.c (compile_file): Just call output_exception_table.
 410
 411 Wed Sep 10  11:30:36 1997  Jason Merrill  <jason@cygnus.com>
 412
 413         * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
 414
 415 Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 416
 417         * except.c (eh_outer_context): Do masking using expand_and.
 418
 419 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
 420
 421         Add port done awhile ago for the ARC cpu.
 422         * arc/arc.h: New file.
 423         * arc/arc.c: New file.
 424         * arc/arc.md: New file.
 425         * arc/initfini.c: New file.
 426         * arc/lib1funcs.asm: New file.
 427         * arc/t-arc: New file.
 428         * arc/xm-arc.h: New file.
 429         * ginclude/va-arc.h: New file.
 430         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
 431         * ginclude/varargs.h: Likewise.
 432         * Makefile.in (USER_H): Add va-arc.h.
 433         * configure.in (arc-*-elf*): Recognize.
 434         * longlong.h: Add ARC support.
 435
 436 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
 437
 438         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
 439         when clearing non-BLKmode data.
 440
 441 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 442
 443         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
 444         * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
 445
 446         * xm-m88k.h (USG): Only define if it hasn't already been defined.
 447
 448         * Makefile.in (risky-stage1): Delete gratutious whitespace.
 449
 450         * Makefile.in (clean): Delete libgcc1-test.
 451
 452         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
 453
 454 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
 455
 456         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
 457         template.
 458
 459 Tue Sep  9 09:50:02 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 460
 461         * dwarf2out.c (output_call_frame_info): Call named_section.
 462
 463 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
 464
 465         * haifa-sched.c (print_value): Fix last change.
 466
 467 Tue Sep  9 01:30:37 1997  Jason Merrill  <jason@yorick.cygnus.com>
 468
 469         * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
 470         write_symbols.
 471
 472 Mon Sep  8 16:32:43 1997  Jason Merrill  <jason@yorick.cygnus.com>
 473
 474         * mips.c (function_prologue): Set up the CFA when ABI_32.
 475
 476         * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
 477         for dwarf2 unwind info.
 478         (output_function_prologue, sparc_flat_output_function_prologue): Same.
 479
 480         * final.c (final_end_function): Check dwarf2out_do_frame instead
 481         of DWARF2_DEBUG for dwarf2 unwind info.
 482         (final_scan_insn): Likewise.
 483         (final_start_function): Likewise.  Initialize dwarf2 frame debug here.
 484         (final): Not here.
 485
 486         * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
 487         count > 0.
 488
 489         * varasm.c (exception_section): Check EXCEPTION_SECTION first.
 490
 491 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
 492
 493         * v850.h (ASM_SPEC): Pass on target processor.
 494         (CPP_PREDEFINES): Only define if not already specified.
 495         (TARGET_VERSION): Only define if not already specified.
 496         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
 497         processor.
 498         (EXTRA_SWITCHES): Extra entries in the switches array.
 499         (TARGET_DEFAULT): Set default target processor.
 500
 501 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
 502
 503         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
 504         cases, add %# and %/, and add : to make them into extended asms.
 505
 506 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
 507
 508         * alias.c (init_alias_analysis): Clean up incompatible pointer
 509         type warning in bzero.
 510         * regmove.c (regmove_optimize): Ditto.
 511         * haifa-sched.c (find_rgns): Ditto.
 512
 513         * haifa-sched.c (print_value): Clean up ptr->int cast
 514         warnings.
 515
 516 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
 517
 518         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
 519         * install.texi (Configurations): Ditto.
 520         * config.sub: Ditto.
 521
 522 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
 523
 524         * Makefile.in (sdbout.o): Depend on insn-config.h.
 525
 526 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
 527
 528         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
 529         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
 530
 531 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
 532
 533         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
 534         prologue insn, only the first elt is significant.
 535         (output_call_frame_info): For exception handling, always use 4-byte
 536         fields as specified by the dwarf2 spec.
 537         Don't skip trivial FDEs.
 538
 539 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
 540
 541         * version.c: Bump for snapshot.
 542
 543 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
 544
 545         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 546         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 547         when op1_is_pow2.
 548
 549 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 550
 551         * final.c (shorten_branches): During first pass, assume worst
 552         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 553
 554         * Makefile.in (distclean): Remove various things left around
 555         by running the testsuite.
 556
 557 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 558
 559         * configure.in (out_file): Emit definition to config.status in order
 560         to have a defined value for configure.lang.
 561         * configure: Re-built.
 562
 563 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 564
 565         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 566         for ld-new.
 567         * configure: Rebuilt.
 568
 569 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 570
 571         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 572
 573 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 574
 575         * sparc/sparc.md: Add ultrasparc scheduling support.
 576         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 577
 578 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 579
 580         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 581         as initial value for real_label_map.
 582         (copy_for_inline): Likewise.
 583
 584 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 585
 586         * sched.c (update_flow_info) When looking if to set found_split_dest
 587         or found_orig_dest, look at all parts of a PARALLEL.
 588         * haifa-sched.c (update_flow_info): Likewise.
 589
 590 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 591
 592         * v850: New directory for v850 port.
 593         * v850/lib1funcs.asm: New file.
 594         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 595         * ginclude/va-v850.h: New file.
 596         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 597         * configure.in (mn10200-*-*): New target.
 598         * configure: Rebuilt.
 599         * config.sub: Handle v850-elf.
 600         * Makefile.in (USER_H): Add va-mn10200.h.
 601         * invoke.texi: Document v850 stuff.
 602
 603 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 604
 605         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 606         has integer TYPE_{MAX,MIN}_VALUE before using them.
 607
 608         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 609         __HPUX_ASM__ versions.
 610
 611 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 612
 613         * install.sh: Delete duplicate install script.
 614
 615 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 616
 617         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 618         computed goto which sets the same stack register.
 619
 620         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 621         destination are both on the regstack.
 622         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 623
 624 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 625
 626         * mips.md (nonlocal_goto_receiver): Define.
 627
 628         * profile.c (output_arc_profiler): Check next_insert_after for non
 629         NULL before deferencing it.
 630
 631         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 632
 633 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 634
 635         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 636
 637 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 638
 639         * toplev.c (rest_of_compilation): For passes starting with
 640         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 641
 642         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 643         file.
 644
 645         * flow.c (print_rtl_with_bb): Print which insns start and end
 646         basic blocks.  For the start of a basic block, also print the live
 647         information.
 648
 649 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 650
 651         * toplev.c (main): Change #elif to #else/#ifdef
 652
 653         * tlink.c: Include ctype.h.
 654         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 655
 656 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 657
 658         * bitmap.c: Conditionally include stdlib.h.
 659         (free): Provide a declaration if NEED_DECLARATION_FREE.
 660
 661 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 662
 663         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 664
 665 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 666
 667         * profile.c (output_arc_profiler): Verify next_insert_after is an
 668         INSN before and after skipping a stack pop.
 669
 670 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 671
 672         * final.c (shorten_branches): Don't count the lengths of deleted
 673         instructions.
 674
 675 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 676
 677         * version.c: Bump for snapshot.
 678
 679 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 680
 681         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 682         two bitmaps ANDed together.
 683         (bitmap_print): Declare.
 684
 685         * bitmap.c (function_obstack): Don't declare any more.
 686         (bitmap_obstack): Obstack for allocating links from.
 687         (bitmap_obstack_init): New static to say whether to initialize
 688         bitmap_obstack.
 689         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 690         (bitmap_release_memory): Free all memory allocated from
 691         bitmap_obstack.
 692
 693         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 694         EXECUTE_IF_AND_IN_BITMAP.
 695
 696 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 697
 698         * alias.c (true_dependence): Address with AND can alias scalars.
 699         (anti_dependence, output_dependence): Likewise.
 700
 701         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 702
 703 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 704
 705         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 706           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 707           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 708           definitions.  Use -qrtems instead of -mrtems.
 709
 710 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 711
 712         * xm-sco5.h (sys_siglist): Define.
 713         (SYS_SIGLIST_DECLARED): Likewise.
 714
 715 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 716
 717         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 718
 719 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 720
 721         * except.c (eh_outer_context): Expand masking operation using
 722         expand_binop.
 723
 724 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 725
 726         * alpha.md (floatdisf2-1): New pattern.
 727
 728 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 729
 730         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 731         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 732         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 733         * gcc.texi: Note that if you define sys_siglist that you should
 734         also define SYS_SIGLIST_DECLARED.
 735
 736         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 737         are relative to the next instruction, not the current instruction.
 738
 739 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 740
 741         * local-alloc.c (contains_replace_regs): New function.
 742         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 743         verify that there is no existing REG_EQUIV note, and add a call to
 744         contains_place_regs.
 745
 746 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 747
 748         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 749         (STARTFILE_SPEC): Always use crtbegin.o%s
 750         (ENDFILE_SPEC): Always use crtend.o%s.
 751
 752 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 753
 754         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 755         is passed in.
 756         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 757         SFmode for 64 bit hosts.
 758
 759 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 760
 761         * fixincludes: Permits spaces between # and define.  Discard C++
 762         comments in sys/pci.h on HP/UX 10.20.
 763
 764 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 765
 766         * version.c: Bump for snapshot.
 767
 768         * pa.c (restore_unscaled_index_insn_codes): New function.
 769         (record_unscaled_index_insn_codes): Likewise.
 770         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 771         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 772         (pa_reorg): Call record_unscaled_index_insn_codes.
 773
 774         * haifa-sched.c (move_insn): Handle notes correctly for insns
 775         with SCHED_GROUP_P set.
 776
 777 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 778
 779         * alpha/xm-linux.h (USE_BFD): Undef before define.
 780
 781 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 782
 783         * cse.c (cse_insn): Don't record BLKmode values.
 784
 785 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 786
 787         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 788
 789 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 790
 791         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 792         * collect2.c (sys_errlist): Likewise.
 793         * cpplib.c (sys_errlist): Likewise.
 794         * gcc.c (sys_errlist): Likewise.
 795         * protoize (sys_errlist): Likewise.
 796         * configure.in: Check for strerror.
 797         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 798         * xm-gnu.h (HAVE_STRERROR): Likewise.
 799         * xm-linux.h (HAVE_STRERROR): Likewise.
 800         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 801         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 802         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 803         * xm-dos.h (HAVE_STRERROR): Likewise.
 804         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 805         * xm-pa.h (HAVE_STRERROR): Likewise.
 806         * xm-papro.h (HAVE_STRERROR): Likewise.
 807         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 808         * configure, config.in: Rebuilt.
 809
 810         * Makefile.in: Add several missing "else true" clauses.
 811
 812         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 813         * mips-tfile.c: Likewise.
 814         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 815         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 816         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 817         * configure.in: Check for sys_siglist declaration.
 818         * configure, config.in: Rebuilt.
 819
 820 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 821
 822         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 823         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 824         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 825         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 826         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 827         macro EXTRA_SUBTARGET_SWITCHES.
 828         * configure.in (sh*-*-rtems*): New target.
 829         * sh/rtems.h: New file.
 830         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 831         * configure: Rebuilt.
 832
 833 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 834
 835         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 836
 837 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 838
 839         * rs6000.md: Make DF fused-add operations pay attention to
 840         -mno-fused-add.
 841
 842 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 843
 844         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 845
 846 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 847
 848         * pa.md (reload_peepholes): Make sure operand is a REG before
 849         examining REGNO.  Allow general registers too.
 850
 851 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 852
 853         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 854
 855 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 856
 857         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 858         to reallocate abbrev_die_table.
 859
 860 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 861
 862         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 863
 864 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 865
 866         * Makefile.in (config.status): Depend on version.c
 867
 868         * expr.h (insn_gen_function): Reenable prototype.
 869
 870         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 871         first parameter.
 872
 873 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 874
 875         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 876
 877 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 878
 879         * version.c: Bump for latest snapshot.
 880
 881         * bc-optab.c: Conditionally include stdlib.h.
 882         (free): Provide a declaration if NEED_DECLARATION_FREE.
 883         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 884         * rtl.h (free): Remove declaration.
 885         * tree.h (free): Remvoe declaration.
 886
 887         * configure: Rebuilt.
 888
 889 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 890
 891         * flags.h (flag_move_all_movables): Declare.
 892         (flag_reduce_all_givs): Likewise.
 893         * loop.c (move_movables): Handle flag_move_all_movables.
 894         (strength_reduce): Handle flag_reduce_all_givs.
 895         * toplev.c (flag_move_all_movables): Define.
 896         (flag_reduce_all_givs): Likewise.
 897         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 898         * invoke.texi: Document new options, including alias stuff that
 899         wasn't included last time.
 900
 901 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 902
 903         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 904         * t-mn10200: Ditto.
 905         * t-vxsparc: Ditto.
 906         * t-vxworks68: Ditto.
 907         * t-vxworks960: Ditto.
 908         * t-vx29k: Ditto.
 909
 910 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 911
 912         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 913         if not already defined, and USE_C_ALLOCA not defined.
 914
 915 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 916
 917         * config.guess: Replace with script that uses ../config.guess.
 918
 919         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 920         if USE_GNULIBC_1 is not defined.
 921
 922 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 923
 924         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 925         * config.guess: Recognize alpha-linux-gnulibc1.
 926         * configure.in (alpha-*-linux-gnulibc1): New target.
 927         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 928
 929 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 930
 931         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 932         last change.
 933
 934 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 935
 936         * loop.c (combine_movables): Earlier insns don't match later ones.
 937
 938 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 939
 940         * config/linux.h (CC1_SPEC): Define it only if not defined.
 941
 942         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 943         <linux.h>
 944
 945         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 946         USE_GNULIBC_1 is not defined.
 947
 948         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 949
 950         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 951         as 1 if USE_GNULIBC_1 is not defined.
 952
 953 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 954
 955         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 956         to be something other than a REG.
 957         * function.c (expand_function_end): Fix current_function_return_rtx
 958         if it was a pseudo.
 959
 960         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 961         * x-netbsd: Likewise
 962         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
 963         (INSTALL_HEADERS): Delete.
 964         * x-dguxbcs: Likewise.
 965         * x-hp3bsd44: Likewise
 966         * x-pa: Likewise.
 967
 968 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
 969
 970         * i386.md (pop): pop increments the stack pointer.
 971         (prologue_set_stack_ptr): New pattern.
 972         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
 973         instead of subsi3.
 974
 975 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
 976
 977         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
 978         address where an offsettable address is required.
 979
 980 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 981
 982         * loop.c (check_final_value): Don't miss a biv increment in a
 983         parallel.
 984
 985 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
 986
 987         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
 988         TYPE_DECL_IS_STUB instead of DECL_NAME.
 989
 990 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 991
 992         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
 993
 994 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
 995
 996         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
 997
 998 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
 999
1000         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1001         (find_post_sched_live): Likewise.
1002
1003         * haifa-sched.c (schedule_block): Remove old code to get arguments
1004         from hard regs into pseudos early.
1005
1006 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
1007
1008         * version.c: Bump for new snapshot.
1009
1010         * local-alloc.c (update_equiv_regs): All the target to reject
1011         promotion of some REG_EQUAL to REG_EQUIV notes.
1012         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
1013
1014         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
1015         secondary reloads.
1016
1017         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
1018         store of the argument registers.
1019
1020 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
1021
1022         * fold-const.c (multiple_of_p): New function.
1023         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
1024
1025 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
1026
1027         * expr.h (insn_gen_function): Temporarily remove prototype.
1028
1029 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
1030
1031         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
1032         filenames.  Use sed to extract base filename for install.
1033
1034 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
1035
1036         * unroll.c (find_splittable_givs): Only share if two givs have the
1037         same add and multiply values.
1038
1039 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
1040
1041         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
1042         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
1043
1044 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
1045
1046         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
1047         around branch tables.
1048         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
1049         and .end_brtab directives if TARGET_GAS.
1050
1051 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
1052
1053         * alias.c (true_dependence): Pass x_addr not x to varies.
1054
1055         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
1056         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
1057         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
1058         declarations.
1059         * config.in, configure: Regenerate.
1060
1061 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
1062
1063         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
1064         LO_SUM.
1065         (record_set): Handle LO_SUM like PLUS.
1066         (init_alias_analysis): When following chains of base addresses,
1067         do not stop on reaching a hard register.
1068
1069 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
1070
1071         * version.c: Bump for new snapshot.
1072
1073 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
1074
1075         * alpha.h (ARCH_ASM_FILE_START): Define.
1076         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
1077         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
1078
1079 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
1080
1081         * Makefile.in (install-common): Put gcov comment at start of line.
1082
1083 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
1084
1085         * alias.c (init_alias_analysis): When simplifying the reg_base_value
1086         array, simplify entries for hard registers too.
1087
1088 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
1089
1090         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
1091         list.
1092
1093 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
1094
1095         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
1096         block_stack before dereferencing it.
1097
1098 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
1099
1100         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
1101
1102 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
1103
1104         * cplus-dem.c: Add 'extern' to prepends_underscore.
1105
1106 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
1107
1108         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
1109         (get_issue_rate): Delete.
1110         * pa.h (ISSUE_RATE): Define.
1111
1112         * configure.in: Turn on haifa by default for the PA.
1113         * configure: Rebuilt.
1114         * pa.c (override_options): Accept -mschedule=7200 option.
1115         (pa_adjust_cost): No longer need to scale costs for newer
1116         processors.
1117         * pa.h (enum processor_type): Add PROCESSOR_7200.
1118         * pa.md: Revamp scheduling parameters to work better with
1119         haifa.  Add scheduling parameters for the 7200.
1120
1121         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1122         insns too.
1123         (schedule_block): When adjusting basic_block_{head,end}, account
1124         for movement of SCHED_GROUP_P insns too.
1125
1126         * haifa-sched.c (debug_dependencies): Fix thinko.
1127
1128         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1129         (site.exp, check, check-g++, check-gcc): New targets.
1130
1131         * haifa-sched.c: Make lots of variables static.
1132
1133 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
1134
1135         * expr.h, real.h: Finish prototyping.
1136
1137 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
1138
1139         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1140         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1141         * reload1.c: Undo bugfix from Aug 11.
1142
1143 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
1144
1145         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1146         quotes around the name.
1147         * configure: Regenerate.
1148
1149 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
1150
1151         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1152
1153 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
1154
1155         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1156         to sub-makes to avoid building more passes than the user might have
1157         requested on the command line.
1158
1159 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
1160
1161         * configure.in: Expurgate `broken_install' (install is
1162         autoconfed).
1163
1164         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1165         relevant).
1166
1167 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
1168
1169         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1170         functions and declarations.
1171         (analyze_loop_iterations): Use condjump_p.
1172         (insert_bct): Likewise.  Use exact_log2.
1173
1174 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
1175
1176         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1177         (schedule_region): Likewise.
1178         (schedule_insns): Likewise.
1179
1180         * PROJECTS: Update with Haifa stuff.
1181
1182 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
1183
1184         * version.c: Change the version string to look like:
1185         egcs-2.90.00 970814 (gcc2-970802 experimental).
1186
1187         * loop.c (is_conditional_branch): Make definition match declaration.
1188
1189         * gcc.c: Take out experimental snapshot warning message.
1190
1191 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
1192
1193         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1194         print out the names of the notes.  Print out the name of the insn
1195         that is not a note, and not an {,CALL_,JUMP_}INSN.
1196
1197 Wed Aug 13 17:32:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
1198
1199         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1200         again for the slot after we give it RTL.
1201
1202 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
1203
1204         * configure.in (haifa configury): Fix typo.
1205         * configure: Regenerate.
1206
1207 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
1208
1209         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1210
1211         * gcc.info*: Rebuilt.
1212
1213         * COPYING.g77, README.g77: New files.
1214         * real.c (ereal_unto_float, ereal_unto_double): New functions.
1215         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1216         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1217
1218 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
1219
1220         * Integrate Haifa instruction scheduler.
1221         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
1222         to sched with $(SCHED_CFLAGS.
1223         * configure.in: Handle --enable-haifa.
1224         * configure: Rebuilt.
1225         * flags.h: Add new flags for haifa instruction scheduler.
1226         * genattrtab.c (expand_units): For haifa, don't subtract one
1227         when computing blockage.
1228         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1229         (flag_schedule_speculative): Ditto.
1230         (flag_schedule_speculative_load): Ditto.
1231         (flag_schedule_speculative_load_dangerous): Ditto.
1232         (flag_schedule_reverse_before_reload): Ditto.
1233         (flag_schedule_reverse_after_reload): Ditto.
1234         (flag_branch_on_count_reg): Ditto.
1235         (f_options): Add Haifa switches.
1236         (main): Turn off some Haifa options if appropriate macro is
1237         defined.  Process Haifa switches.
1238         * unroll.c (iteration_info): No longer static, since Haifa
1239         scheduler uses it.
1240         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1241         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1242         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1243         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1244         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1245         storage for the Haifa scheduler.
1246         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1247         LABEL_NEXTREF.
1248         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1249         are defined, call analyze_loop_iterations and insert_bct to use
1250         countdown loops.
1251         (record_giv): Refine test for jumps out of loops if HAIFA is
1252         defined.
1253         (analyze_loop_iterations): New function to identify if we can use
1254         a countdown loop.
1255         (insert_bct): Insert countdown loop.
1256         (instrument_loop_bct): Low level code to insert countdown loop.
1257         (loop_number): Calculate UID of loop.
1258         (indirect_jump_in_function_p): Return true if an indirect jump is
1259         in the function.
1260         (is_power_of_2): Return true if value is a power of 2.
1261         (is_conditional_branch): Return true if insn is a conditional
1262         jump.
1263         (fix_bct_param): Process -fbct-{min,max}-N switches.
1264         (check_bct_param): Return true if loop should be instrumented.
1265         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1266         (loop_optimize): Initialize.
1267         (get_condition_for_loop): Ditto.
1268         * loop.c (strength_reduce): Inside of code that uses #ifdef
1269         HAVE_decrement_and_branch_on_count code, test it to make sure the
1270         condition is true.
1271         (instrument_loop_bct): Ditto.
1272         * haifa-sched.c: New file.
1273
1274
1275         * Integrate regmove pass.
1276         * Makefile.in (OBJS): Add regmove.o
1277         (regmove.o): Add dependencies.
1278         * flow.c (find_use_as_address): No longer static.
1279         * rtl.h (find_use_as_address): Declare.
1280         * toplev.c (regmove_dump, flag_regmove): Define.
1281         (f_options): Add -fregmove.
1282         (regmove_dump_file, regmove_time): Define.
1283         (fatal_insn): Close the regmove dump file.
1284         (compile_file): Initialize regmove_time; open/close the regmove dump
1285         file as needed.  Print regmove time as needed.
1286         (rest_of_compilation): Run regmove pass if requested, dump
1287         RTL after regmove if requested.
1288         (main): If -O2 or more, turn on regmove.  Handle dump switches.
1289         * regmove.c: New file.
1290
1291 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
1292
1293         * Integrate tlink patch from jason@cygnus.com
1294         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1295         (process_command): Increment n_switches for them.  Don't discard
1296         their args.  Validate them.
1297         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1298         From Rohan Lenard.
1299         (process_command): Set include_prefixes from COMPILER_PATH.
1300         (main): Set COLLECT_GCC_OPTIONS sooner.
1301         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1302         * tlink.c, hash.c, hash.h: New files.
1303         * Makefile.in (USE_COLLECT2): Always use collect2.
1304         (collect2): Depend on and link in hash.o and tlink.o.
1305         (tlink.o, hash.o): Add dependencies.
1306
1307 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
1308
1309         * Integrate alias analysis changes from jfc@mit.edu
1310         * Makefile.in (OBJS): Add alias.o
1311         (alias.o): Add dependencies.
1312         * alias.c: New file.
1313         * sched.c: Remove alias analysis code.  It lives in alias.c now.
1314         (sched_analyze_2): Add new arguments to true_dependence.
1315         (schedule_insns): Always call init_alias_analysis.
1316         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1317         mark return value from such functions as a pointer and keep track of
1318         them for alias analysis.  If a return value from a function is a
1319         pointer, mark it as such.
1320         * combine.c (distribute_notes): Handle REG_NOALIAS.
1321         * cse.c (struct write_data): Delete.  No longer needed.
1322         (invalidate): Don't call set_nonvarying_address_components anymore.
1323         Use true_dependence to decide if an entry should be removed from
1324         the hash table.
1325         (invalidate_memory): Remove WRITES argument, simplify appropriately.
1326         Fix all callers.
1327         (note_mem_written): Similarly for WRITE_PTR argument.
1328         (invalidate_from_clobbers): Similarly for W argument.
1329         (invalidate_for_call): Remove memory elements from the hash table.
1330         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1331         (cse_rtx_varies_p): New function.  Derived from old
1332         cse_rtx_addr_varies_p.
1333         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1334         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
1335         pointer if PUSH_ROUNDING is defined.  No longer need to call
1336         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1337         (skipped_writes_memory): Remove variable.
1338         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1339         (invalidate_skipped_block): Simplify for new alias analysis code.
1340         (cse_set_around_loop): Likewise.
1341         (cse_main): Call init_alias_analysis.
1342         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1343         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1344         (f_options): Add new alias checking arguments.
1345         (main): Set flag_alias_check when optimizing.
1346         * local_alloc (validate_equiv_mem_from_store): Add new arguments
1347         to true_dependence.
1348         (memref_referenced_p): Likewise.
1349         * loop.c (NUM_STORES): Increase to 30.
1350         (prescan_loop): Only non-constant calls set unknown_address_altered.
1351         (invariant_p): Add new arguments to true_dependence.
1352         (record_giv): Initialize unrolled and shared fields.
1353         (emit_iv_add_mult): Call record_base_value as needed.
1354         * loop.h (struct induction): Add unrolled and shared fields.
1355         * unroll.c  (unroll_loop): Call record_base_value as needed.
1356         (copy_loop_body): Likewise.
1357         (final_biv_value): Likewise.
1358         (final_giv_value): Likewise.
1359         (find_splittable_regs): Likewise.  Only create one new pseudo
1360         if we have multiple address GIVs that were combined with the same
1361         dst_reg GIV.  Note when a new register is created due to unrolling.
1362         * rtl.c (reg_note_name): Add REG_NOALIAS.
1363         * rtl.h (enum reg_note): Similarly.
1364         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1365         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1366         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1367         (true_dependence, read_dependence, anti_dependence): Likewise.
1368         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1369         (mark_user_reg, mark_reg_pointer): Likewise.
1370
1371
1372         * Integrate reload bugfix from Wilon which enables the PA port
1373         to bootstrap again.
1374         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1375         OPERAND_ADDRESS when computing how many registers an insn needs.
1376         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1377         conflict.
1378         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1379         OPADDR_ADDR reload.
1380         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1381         in reload_reg_use_in_op_addr do not reach the end.
1382         do not reach the end.
1383         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1384         RELOAD_FOR_OPERAND_ADDRESS.
1385
1386 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
1387
1388         * egcs project officially starts.
1389