gcc/ChangeLog

   1 Mon Sep 22 11:36:42 1997  David S. Miller  <davem@tanya.rutgers.edu>
   2
   3         * combine.c (try_combine): Use NULL_RTX instead of '0' where
   4         appropriate in calls to gen_rtx().
   5         * cse.c (cse_main): Likewise.
   6         * emit-rtl.c (gen_label_rtx): Likewise.
   7         * expr.c (init_expr_once): Likewise.
   8         * haifa-sched.c (flush_pending_lists, sched_analyze_insn,
   9         sched_analyze, init_rgn_data_dependences,
  10         compute_block_backward_dependences): Likewise.
  11         * sched.c (schedule_insns): Likewise.
  12         * varasm.c (immed_double_const): Likewise.
  13
  14         * sparc.h (INCOMING_FRAME_SP_OFFSET): Define to
  15         SPARC_STACK_BIAS for sake of dwarf2 on sparc64.
  16
  17 Mon Sep 22 11:21:33 1997  J. Kean Johnston  <jkj@sco.com>
  18
  19         * i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
  20         (MULTILIB_DEFAULTS): Define.
  21         (ASM_SPEC, CPP_SPEC): Handle -mcoff.
  22         (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
  23         (LIBGCC_SPEC): Likewise.
  24         (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
  25         (SUBTARGET_SWITCHES): Add -mcoff and -melf.
  26         * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
  27         (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
  28         (EXTRA_PARTS, TAROUTOPTS): Delete.
  29         (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
  30         (MULTILIB_OPTIONS): Define.
  31         (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
  32         (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
  33
  34 Mon Sep 22 02:10:43 1997  Jeffrey A Law  (law@cygnus.com)
  35
  36         * version.c: Bump for snapshot.
  37
  38 Sun Sep 21 17:45:45 1997  Jeffrey A Law  (law@cygnus.com)
  39
  40         * loop.c (loop_number): Delete function.  Change all references
  41         to use uid_loop_num array.
  42         * loop.h (loop_number): Delete declaration.
  43         * unroll.c (unroll_loop): Change "loop_number" references to
  44         use uid_loop_num instead.
  45
  46         * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
  47         conditional.
  48         (loop_unroll_iter): Remove unused variable and all references.
  49         (loop_optimize): Always allocate and clear space for loop_unroll_factor.
  50         (insert_bct): Fix minor formatting problems.
  51         * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
  52         (loop_unroll_iter): Removed unused decl.
  53         * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
  54         Always record the unrolling factor.
  55
  56         * cse.c (simplify_relational_operation): Set h0u just like h0s.
  57         Similarly for h1u and h1s.
  58
  59         * flow.c (jmp_uses_reg_or_mem): Deleted unused function.
  60         (find_basic_blocks): Use computed_jump_p to determine if a
  61         particular JUMP_INSN is a computed jump.
  62         * reg-stack.c (find_blocks): Use computed_jump_p to determine
  63         if a particular JUMP_INSN is a computed jump.
  64         * rtlanal.c (jmp_uses_reg_or_mem): New function.
  65         (computed_jump_p): Likewise.
  66         * rtl.h (computed_jump_p): Declare.
  67         * genattrtab.c (pc_rtx): Define and initialize.
  68         * loop.c (loop_optimize): Always determine if the current
  69         function has a computed jump.
  70         (indirect_jump_in_function_p): Use computed_jump_p to determine
  71         if a particular JUMP_INSN is a computed jump.
  72
  73         * loop.c (fix_bct_param): Delete unused function.
  74         (check_bct_param): Likewise.
  75
  76 Sat Sep 20 16:22:06 1997  Jason Merrill  <jason@yorick.cygnus.com>
  77
  78         * frame.c (__deregister_frame): Check properly for initialized object.
  79
  80 Fri Sep 19 20:51:03 199  H.J. Lu  (hjl@gnu.ai.mit.edu)
  81
  82         * alpha/linux.h (HANDLE_SYSV_PRAGMA): Defined.
  83
  84 Fri Sep 19 18:53:50 1997 J"orn Rennecke <amylaar@cygnus.co.uk>
  85
  86         * jump.c (thread_jumps): check can_reverse_comparison_p before
  87         threading a reversed-condition jump.
  88
  89         * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
  90         * haifa-sched.c (update_flow_info): Likewise.
  91
  92 Thu Sep 18 21:13:40 1997  Jeffrey A Law  (law@cygnus.com)
  93
  94         * Makefile.in (BOOT_CFLAGS): Use -O2.
  95
  96         * configure.in (strtoul, bsearch): Have autoconf check for these
  97         functions.
  98         * configure, config.in: Rebuilt.
  99
 100         * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
 101         * mips/mips.h (alloca): Likewise.
 102         * rs6000/xm-rs6000.h (alloca): Likewise.
 103         * rs6000/xm-sysv4.h: Likewise.
 104
 105 Thu Sep 18 14:22:22 1997  Jason Merrill  <jason@yorick.cygnus.com>
 106
 107         * final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
 108         * dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
 109         (dwarf2out_stack_adjust): A BARRIER resets the args space to 0.
 110
 111         * except.c (end_eh_unwinder): Subtract 1 from return address.
 112         * libgcc2.c (__throw): Likewise.
 113         (find_exception_handler): Don't change PC here.  Compare end with >.
 114
 115 Thu Sep 18 10:43:07 1997  Nick Clifton  <nickc@cygnus.com>
 116
 117         * v850.c (compute_register_save_size): Correct register
 118         number.
 119         * v850.md (save_interrupt, return_interrupt): Correct
 120         register number.
 121         * v850/lib1funcs.asm (save_interrupt): Correct register number.
 122         (return_interrupt): Use stack pointer, not element pointer.
 123
 124 1997-09-18  Brendan Kehoe  <brendan@lisa.cygnus.com>
 125
 126         * configure.in, configure: Make sure to create the stage* and include
 127         symbolic links in each subdirectory.
 128
 129 Thu Sep 18 01:47:06 1997  Jeffrey A Law  (law@cygnus.com)
 130
 131         * pa.md (reload_peepholes): Don't allow addresses with side
 132         effects for the memory operand.
 133
 134 Wed Sep 17 18:19:53 1997  Jason Merrill  <jason@yorick.cygnus.com>
 135
 136         * libgcc2.c (find_exception_handler): Subtract one from our PC when
 137         looking for a handler, to avoid hitting the beginning of the next
 138         region.
 139
 140         * except.c (expand_builtin_set_return_addr_reg): Use force_operand.
 141
 142 Wed Sep 17 18:33:59 1997  Jeffrey A Law  (law@cygnus.com)
 143
 144         * mips/abi64.h (LONG_MAX_SPEC): Define.
 145         * mips.h (LONG_MAX_SPEC): Define.
 146         (CPP_SPEC): Include long_max_spec.
 147         (EXTRA_SPECS): Include long_max_spec.
 148
 149 Wed Sep 17 14:11:38 1997  Jeffrey A Law  (law@cygnus.com)
 150
 151         * v850.c (construct_save_jarl): Fix thinko in last change.
 152
 153 Wed Sep 17 09:53:07 1997  Jeffrey A Law  (law@cygnus.com)
 154
 155         * version.c: Bump for snapshot.
 156
 157 Tue Sep 16 14:22:36 1997  Jason Merrill  <jason@yorick.cygnus.com>
 158
 159         * libgcc2.c (find_exception_handler): Not found is -1.
 160
 161         * integrate.c (expand_inline_function): Move expand_start_bindings
 162         after expanding the arguments.
 163
 164 Tue Sep 16 11:13:46 1997  Jim Wilson  <wilson@cygnus.com>
 165
 166         * expr.c (expand_expr): Remove previous incorrect change.
 167         If target and slot has no DECL_RTL, then call mark_addressable
 168         again for the slot after we give it RTL.
 169
 170 Tue Sep 16 09:18:52 1997  Jason Merrill  (jason@cygnus.com)
 171
 172         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
 173         again for the slot after we give it RTL.
 174
 175 Tue Sep 16 00:13:20 1997  Nick Clifton  <nickc@cygnus.com>
 176
 177         * v850.c (register_is_ok_for_epilogue,
 178         pattern_is_ok_for_epilogue, construct_restore_jr,
 179         pattern_is_ok_for_prologue, construct_save_jarl): New functions.
 180
 181         * v850.h (pattern_is_ok_for_prologue,
 182         pattern_is_ok_for_epilogue, register_is_ok_for_epilogue): New
 183         predicates.
 184
 185         * v850.md: Replace prologue and epilogue patterns with a
 186         match_parallel pattern.
 187
 188 Mon Sep 15 22:53:01 1997  Jeffrey A Law  (law@cygnus.com)
 189
 190         * aclocal.m4: Add replacement for AC_PROG_INSTALL.
 191         * configure.in: Use EGCS_PROG_INSTALL.
 192
 193 Mon Sep 15 22:40:55 1997  Jim Wilson  (wilson@cygnus.com)
 194
 195         * dwarf2out.c (gen_subprogram_die): Handle redefinition of an
 196         extern inline function.
 197
 198 Mon Sep 15 22:40:55 1997  Richard Henderson  (rth@cygnus.com)
 199
 200         * dwarf2out.c (reg_loc_descriptor): Fix prototype.
 201         (concat_loc_descriptor): New function.
 202         (loc_descriptor): Call it.
 203         (add_AT_location_description): Also elide the descriptor if both
 204         halves of a CONCAT are pseudos.
 205         (add_location_or_const_value_attribute): Recognize CONCAT too.
 206
 207 Mon Sep 15 15:24:00 1997  Richard Henderson  <rth@cygnus.com>
 208
 209         * alpha.md (movdi): Handle CONST_DOUBLE for TARGET_BUILD_CONSTANTS.
 210
 211         * alpha/alpha.c (output_prolog): New variable sa_reg.  Use it for
 212         out-or-range reg_offset.
 213         (output_epilog): Likewise.
 214
 215 Mon Sep 15 15:39:26 1997  Jeffrey A Law  (law@cygnus.com)
 216
 217         * cse.c (simplify_relational_operation): If MODE specifies a
 218         mode wider than HOST_WIDE_INT, then the high word of a CONST_INT
 219         is derived from the sign bit of the low word.
 220
 221 Mon Sep 15 11:43:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
 222
 223         Support dwarf2 unwinding on PUSH_ROUNDING targets like the x86.
 224
 225         * dwarf2.h: Add DW_CFA_GNU_args_size.
 226         * frame.c (execute_cfa_insn): Likewise.
 227         * dwarf2out.c (dwarf_cfi_name, output_cfi): Likewise.
 228         (dwarf2out_args_size, dwarf2out_stack_adjust): New fns.
 229         (dwarf2out_frame_debug): If this isn't a prologue or epilogue
 230         insn, hand it off to dwarf2out_stack_adjust.
 231         (dwarf2out_begin_prologue): Initialize args_size.
 232         * frame.h (struct frame_state): Add args_size.
 233         * libgcc2.c (__throw): Use args_size.
 234         * final.c (final_scan_insn): If we push args, hand off all insns
 235         to dwarf2out_frame_debug.
 236         * defaults.h (DWARF2_UNWIND_INFO): OK for !ACCUMULATE_OUTGOING_ARGS.
 237
 238         * dwarf2out.c dwarf2out_frame_debug): Fix typo.
 239         Handle epilogue restore of SP from FP.
 240         * emit-rtl.c (gen_sequence): Still generate a sequence if the
 241         lone insn has RTX_FRAME_RELATED_P set.
 242
 243         * frame.c (extract_cie_info): Handle "e" augmentation.
 244         * dwarf2out.c (ASM_OUTPUT_DWARF_*): Provide definitions in the
 245         absence of UNALIGNED_*_ASM_OP.
 246         (UNALIGNED_*_ASM_OP): Only provide defaults if OBJECT_FORMAT_ELF.
 247         (output_call_frame_info): Use "e" instead of "z" for augmentation.
 248         Don't emit augmentation fields length.
 249         (dwarf2out_do_frame): Move outside of #ifdefs.
 250         * defaults.h (DWARF2_UNWIND_INFO): Don't require unaligned data
 251         opcodes.
 252
 253         * sparc.h (UNALIGNED_INT_ASM_OP et al): Don't define here after all.
 254         * sparc/sysv4.h (UNALIGNED_INT_ASM_OP): Define here.
 255         * sparc/sunos4.h (DWARF2_UNWIND_INFO): Define to 0.
 256         * sparc/sun4gas.h: New file.
 257         * configure.in: Use sun4gas.h if SunOS 4 --with-gnu-as.
 258
 259         * collect2.c (write_c_file_stat, write_c_file_glob): Declare
 260         __register_frame_table and __deregister_frame.
 261
 262 1997-09-15  Brendan Kehoe  <brendan@cygnus.com>
 263
 264         * except.c (find_exception_handler_labels): Use xmalloc instead of
 265         alloca, since MAX_LABELNO - MIN_LABELNO can be more than 1 million
 266         in some cases.
 267
 268 Sun Sep 14 21:01:23 1997  Jeffrey A Law  (law@cygnus.com)
 269
 270         * Makefile.in: Various changes to build info files
 271         in the object tree rather than the source tree.
 272
 273 Sun Sep 14 12:24:30 1997  Jeffrey A Law  (law@cygnus.com)
 274
 275         * fixinc.math: New file to fix math.h on some systems.
 276         * configure.in (freebsd, netbsd): Use fixinc.math on these
 277         systems.
 278         * configure: Rebuilt.
 279
 280 Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
 281
 282         * regmove.c (regmove_optimize): If we end up moving the
 283         original insn due to lifetime overlaps, make sure to move
 284         REG_NOTES too.
 285
 286 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 287
 288         * Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.
 289
 290 Sat Sep 13 12:57:26 1997  Jeffrey A Law  (law@cygnus.com)
 291
 292         * haifa-sched.c (add_branch_dependences): Make each insn in
 293         a SCHED_GROUP_P block explicitly depend on the previous insn.
 294
 295 Fri Sep 12 13:49:58 1997  Jason Merrill  <jason@yorick.cygnus.com>
 296
 297         * except.h: Prototype dwarf2 hooks.
 298         * expr.c: Adjust.
 299
 300 Thu Sep 11 17:43:55 1997  Jim Wilson  <wilson@cygnus.com>
 301
 302         * configure.in (native_prefix): Delete.
 303         (mips-dec-netbsd): Don't set prefix.
 304         (*linux*): Don't set prefix.
 305
 306 Thu Sep 11 15:48:32 1997  Fred Fish  <fnf@ninemoons.com>
 307
 308         * protoize.c: Include <varargs.h> only if HAVE_VARARGS_H is
 309         defined.  If not defined, include <sys/varargs.h> if
 310         HAVE_SYS_VARARGS_H is defined.
 311         * configure.in: Test for varargs.h and sys/varargs.h.
 312         * configure: Regenerate with autoconf.
 313         * config.in: Regenerate with autoheader.
 314
 315         * cpplib.c (quote_string): Cast first arg of sprintf call
 316         from "unsigned char *" to "char *".
 317         (output_line_command): Ditto.
 318         (macroexpand): Ditto.
 319         (do_line): Cast atoi arg from "unsigned char *" to "char *".
 320
 321 Wed Sep 10 21:37:30 1997  Jeffrey A Law  (law@cygnus.com)
 322
 323         * version.c: Bump for snapshot.
 324
 325         * Makefile.in (compare): Exit with nonzero status if there
 326         are comparison failures.  Note which files failed the
 327         comparison test in .bad_compare.
 328
 329 Wed Sep 10 17:05:46 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 330
 331         * config/alpha/elf.h (CPP_PREDEFINES): Remove -D__PIC__ -D__pic__.
 332
 333 Wed Sep 10 16:37:28 1997  Fred Fish  <fnf@ninemoons.com>
 334
 335         * Makefile.in (LN, LN_S): New macros, use where appropriate.
 336         * aclocal.m4 (GCC_PROG_LN_S, GCC_PROG_LN): New tests.
 337         * configure.in: Use GCC_PROG_LN_S and GCC_PROG_LN.
 338         * configure: Regenerated.
 339
 340 Thu Sep 11 11:09:43 1997  Jeffrey A Law  (law@cygnus.com)
 341
 342         * loop.c (strength_reduce): Fix typo.
 343
 344 Wed Sep 10 16:01:15 1997  Jim Wilson  <wilson@cygnus.com>
 345
 346         * m88k/m88k.c (struct option): Rename to struct options.
 347         * m88k/dolph.h (INITIALIZE_TRAMPOLINE): Delete here.
 348         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE): Delete ifdef and comments.
 349         * libgcc2.c (__enable_execute_stack): Check for __sysV88__ not
 350         __DOLPHIN__ or sysV88.
 351
 352 Wed Sep 10 14:58:40 1997  Jim Wilson  <wilson@cygnus.com>
 353
 354         * emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
 355         create new subreg.
 356
 357 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 358
 359         * config.sub: Accept 'amigados' for backward compatability.
 360
 361 Wed Sep 10 14:05:08 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 362
 363         * Makefile.in (testsuite/site.exp): New target.
 364         (check-gcc, check-g++): Depend on testsuite/site.exp.
 365         Don't stop for failure.
 366
 367 Wed Sep 10 12:59:57 1997  Jason Merrill  <jason@yorick.cygnus.com>
 368
 369         * expr.c (expand_builtin): Only support __builtin_dwarf_fp_regnum()
 370         if DWARF2_UNWIND_INFO.
 371
 372 Wed Sep 10 11:49:20 1997  Jason Merrill  <jason@yorick.cygnus.com>
 373
 374         Add support for exception handling using DWARF 2 frame unwind info.
 375         Currently works on SPARC and MIPS, and almost on x86.
 376
 377         * libgcc2.c (get_reg, put_reg, get_return_addr, put_return_addr,
 378         next_stack_level, in_reg_window): Helper fns.
 379         (__throw): Implement for DWARF2_UNWIND_INFO.
 380
 381         * expr.c (expand_builtin): Handle builtins used by __throw.
 382         * tree.h (enum built_in_function): Add builtins used by __throw.
 383         * c-decl.c (init_decl_processing): Declare builtins used by __throw.
 384         * dwarf2out.c (expand_builtin_dwarf_fp_regnum): Used by __throw.
 385         * except.c (expand_builtin_unwind_init): Hook for dwarf2 __throw.
 386         (expand_builtin_extract_return_addr): Likewise.
 387         (expand_builtin_frob_return_addr): Likewise.
 388         (expand_builtin_set_return_addr_reg): Likewise.
 389         (expand_builtin_eh_stub): Likewise.
 390         (expand_builtin_set_eh_regs): Likewise.
 391         (eh_regs): Choose two call-clobbered registers for passing back values.
 392
 393         * frame.c, frame.h: New files for parsing dwarf 2 frame info.
 394         * Makefile.in (LIB2ADD): New variable.  Add $(srcdir)/frame.c.
 395         (libgcc2.a): Use it instead of $(LIB2FUNCS_EXTRA) $(LANG_LIB2FUNCS)
 396         (stmp-multilib): Likewise.
 397         ($(T)crtbegin.o, $(T)crtend.o): Add -fno-exceptions.
 398
 399         * except.c: #include "defaults.h".
 400         (exceptions_via_longjmp): Default depends on DWARF2_UNWIND_INFO.
 401         (emit_throw): Don't defeat assemble_external if DWARF2_UNWIND_INFO.
 402         (register_exception_table_p): New fn.
 403         (start_eh_unwinder): Don't do anything if DWARF2_UNWIND_INFO.
 404         (end_eh_unwinder): Likewise.
 405
 406         * crtstuff.c: Wrap .eh_frame section, use EH_FRAME_SECTION_ASM_OP,
 407         call __register_frame and __deregister_frame as needed.
 408         * varasm.c (eh_frame_section): New fn if EH_FRAME_SECTION_ASM_OP.
 409         * dwarf2out.c (EH_FRAME_SECTION): Now a function-like macro.  Check
 410         EH_FRAME_SECTION_ASM_OP.
 411         * sparc/sysv4.h (EH_FRAME_SECTION_ASM_OP): Define.
 412         * mips/iris6.h: (EH_FRAME_SECTION_ASM_OP): Define.
 413         (LINK_SPEC): Add __EH_FRAME_BEGIN__ to hidden symbols.
 414
 415         * dwarf2out.c (output_call_frame_info): If no support for
 416         EXCEPTION_SECTION, mark the start of the frame info with a
 417         collectable tag.
 418         * collect2.c (frame_tables): New list.
 419         (is_ctor_dtor): Recognise frame entries.
 420         (scan_prog_file): Likewise.
 421         (main): Pass -fno-exceptions to sub-compile.  Also do collection
 422         if there are any frame entries.
 423         (write_c_file_stat): Call __register_frame_table and
 424         __deregister_frame as needed.
 425         (write_c_file_glob): Likewise.
 426
 427         * defaults.h (DWARF2_UNWIND_INFO): Default to 1 if supported.
 428         Also require unaligned reloc support.
 429         * sparc.h (UNALIGNED_SHORT_ASM_OP, UNALIGNED_INT_ASM_OP,
 430         UNALIGNED_DOUBLE_INT_ASM_OP): Define here.
 431         * sparc/sysv4.h: Not here.
 432
 433         * toplev.c (compile_file): Call dwarf2out_frame_{init,finish}.
 434         * dwarf2out.c (dwarf2out_init): Don't call dwarf2out_frame_init.
 435         (dwarf2out_finish): Don't call dwarf2out_frame_finish.
 436
 437         * libgcc2.c (L_eh): Reorganize, moving code shared by different
 438         EH implementations to the top.
 439         (find_exception_handler): Split out.  Start from 0.  Compare against
 440         end with >=.
 441         (__find_first_exception_table_match): Use it.
 442         * except.c (output_exception_table): Don't do anything if there's
 443         no table.  Don't output a first entry of zeroes.
 444         (eh_outer_context): Adjust properly.
 445         (add_eh_table_entry): Use xrealloc.
 446         * toplev.c (compile_file): Just call output_exception_table.
 447
 448 Wed Sep 10  11:30:36 1997  Jason Merrill  <jason@cygnus.com>
 449
 450         * i386.c (ix86_prologue): Add dwarf2 support for !do_rtl case.
 451
 452 Wed Sep 10 08:17:10 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 453
 454         * except.c (eh_outer_context): Do masking using expand_and.
 455
 456 Wed Sep 10 01:38:30 1997  Doug Evans  <dje@cygnus.com>
 457
 458         Add port done awhile ago for the ARC cpu.
 459         * arc/arc.h: New file.
 460         * arc/arc.c: New file.
 461         * arc/arc.md: New file.
 462         * arc/initfini.c: New file.
 463         * arc/lib1funcs.asm: New file.
 464         * arc/t-arc: New file.
 465         * arc/xm-arc.h: New file.
 466         * ginclude/va-arc.h: New file.
 467         * ginclude/stdarg.h: Include va-arc.h ifdef __arc__.
 468         * ginclude/varargs.h: Likewise.
 469         * Makefile.in (USER_H): Add va-arc.h.
 470         * configure.in (arc-*-elf*): Recognize.
 471         * longlong.h: Add ARC support.
 472
 473 Wed Sep 10 01:32:54 1997  Jeffrey A Law  (law@cygnus.com)
 474
 475         * expr.c (clear_storage): Use CONST0_RTX instead of const0_rtx.
 476         when clearing non-BLKmode data.
 477
 478 Wed Sep 10 00:29:29 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 479
 480         * m88k/sysv3.h (INITIALIZE_TRAMPOLINE) Define.
 481         * libgcc2.c (__enable_execute_stack): Provide for sysV88 too.
 482
 483         * xm-m88k.h (USG): Only define if it hasn't already been defined.
 484
 485         * Makefile.in (risky-stage1): Delete gratutious whitespace.
 486
 487         * Makefile.in (clean): Delete libgcc1-test.
 488
 489         * Makefile.in (INSTALL): cd to $(srcdir) before running texinfo.
 490
 491 Tue Sep  9 17:07:36 1997  Stan Cox  <coxs@dg-rtp.dg.com>
 492
 493         * m88k.c (m88k_expand_prologue): Set MEM_IN_STRUCT_P of va_list
 494         template.
 495
 496 Tue Sep  9 09:50:02 1997  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 497
 498         * dwarf2out.c (output_call_frame_info): Call named_section.
 499
 500 Tue Sep  9 09:12:17 1997  Jeffrey A Law  (law@cygnus.com)
 501
 502         * haifa-sched.c (print_value): Fix last change.
 503
 504 Tue Sep  9 01:30:37 1997  Jason Merrill  <jason@yorick.cygnus.com>
 505
 506         * mips.h (DWARF_FRAME_REGNUM): Use the same numbering regardless of
 507         write_symbols.
 508
 509 Mon Sep  8 16:32:43 1997  Jason Merrill  <jason@yorick.cygnus.com>
 510
 511         * mips.c (function_prologue): Set up the CFA when ABI_32.
 512
 513         * sparc.c (save_regs): Check dwarf2out_do_frame instead of DWARF2_DEBUG
 514         for dwarf2 unwind info.
 515         (output_function_prologue, sparc_flat_output_function_prologue): Same.
 516
 517         * final.c (final_end_function): Check dwarf2out_do_frame instead
 518         of DWARF2_DEBUG for dwarf2 unwind info.
 519         (final_scan_insn): Likewise.
 520         (final_start_function): Likewise.  Initialize dwarf2 frame debug here.
 521         (final): Not here.
 522
 523         * expr.c (expand_builtin_return_addr): Only SETUP_FRAME_ADDRESSES if
 524         count > 0.
 525
 526         * varasm.c (exception_section): Check EXCEPTION_SECTION first.
 527
 528 Mon Sep  8 15:15:11 1997  Nick Clifton  <nickc@cygnus.com>
 529
 530         * v850.h (ASM_SPEC): Pass on target processor.
 531         (CPP_PREDEFINES): Only define if not already specified.
 532         (TARGET_VERSION): Only define if not already specified.
 533         (MASK_CPU, MASK_V850, MASK_DEFAULT): Bits to specify target
 534         processor.
 535         (EXTRA_SWITCHES): Extra entries in the switches array.
 536         (TARGET_DEFAULT): Set default target processor.
 537
 538 Mon Sep  8 18:26:35 1997  Jim Wilson  <wilson@cygnus.com>
 539
 540         * m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): In MOTOROLA
 541         cases, add %# and %/, and add : to make them into extended asms.
 542
 543 Sun Sep  7 23:57:50 1997  Weiwen Liu  <liu@hepunix.physics.yale.edu>
 544
 545         * alias.c (init_alias_analysis): Clean up incompatible pointer
 546         type warning in bzero.
 547         * regmove.c (regmove_optimize): Ditto.
 548         * haifa-sched.c (find_rgns): Ditto.
 549
 550         * haifa-sched.c (print_value): Clean up ptr->int cast
 551         warnings.
 552
 553 Sun Sep  7 23:18:32 1997  Fred Fish  <fnf@ninemoons.com>
 554
 555         * INSTALL: Change 'amigados' to 'amigaos' to match current usage.
 556         * install.texi (Configurations): Ditto.
 557         * config.sub: Ditto.
 558
 559 Sun Sep  7 22:56:56 1997  Weiwen Liu  (liu@hepvms.physics.yale.edu)
 560
 561         * Makefile.in (sdbout.o): Depend on insn-config.h.
 562
 563 Sun Sep  7 18:44:50 1997  Jim Wilson  <wilson@cygnus.com>
 564
 565         * m68k/m68k.h (TARGET_SWITCHES): For 68000, 68302, subtract MASK_68881.
 566         For 68303, 68332, cpu32, subtract MASK_68040_ONLY.
 567
 568 Sun Sep  7 18:30:46 1997  Jason Merrill  <jason@yorick.cygnus.com>
 569
 570         * dwarf2out.c (dwarf2out_frame_debug): Assume that in a PARALLEL
 571         prologue insn, only the first elt is significant.
 572         (output_call_frame_info): For exception handling, always use 4-byte
 573         fields as specified by the dwarf2 spec.
 574         Don't skip trivial FDEs.
 575
 576 Sun Sep  7 14:19:39 1997  Jeffrey A Law  (law@cygnus.com)
 577
 578         * version.c: Bump for snapshot.
 579
 580 Sun Sep  7 14:17:36 1997  Torbjorn Granlund  (tege@pdc.kth.se)
 581
 582         * expmed.c (expand_divmod): Make op1_is_pow2 depend on unsignedp
 583         for negative constants.  Promote EXACT_DIV_EXPR to TRUNC_DIV_EXPR
 584         when op1_is_pow2.
 585
 586 Sun Sep  7 13:46:46 1997  Jeffrey A Law  (law@cygnus.com)
 587
 588         * final.c (shorten_branches): During first pass, assume worst
 589         possible alignment for ADDR_VEC and ADDR_VEC_DIFF insns.
 590
 591         * Makefile.in (distclean): Remove various things left around
 592         by running the testsuite.
 593
 594 Sun Sep  7 13:16:06 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 595
 596         * configure.in (out_file): Emit definition to config.status in order
 597         to have a defined value for configure.lang.
 598         * configure: Re-built.
 599
 600 Sun Sep  7 09:59:08 1997  Jan-Jaap van der Heijden (J.J.vanderHeijden@student.utwente.nl)
 601
 602         * configure.in: Make symlink to as-new rather than as.new.  Similarly
 603         for ld-new.
 604         * configure: Rebuilt.
 605
 606 Fri Sep  5 16:54:55 1997  Jim Wilson  <wilson@cygnus.com>
 607
 608         * profile.c (output_func_start_profiler): Set DECL_EXTERNAL to zero.
 609
 610 Fri Sep  5 16:16:44 1997  Christian Kuehnke  <Christian.Kuehnke@arbi.Informatik.Uni-Oldenburg.DE>
 611
 612         * sparc/sparc.md: Add ultrasparc scheduling support.
 613         * sparc/sparc.h (RTX_COSTS): For MULT give v9 a cost of 25 insns.
 614
 615 Fri Sep  5 14:04:59 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>
 616
 617         * integrate.c (save_for_inline_copying): Use 0, not NULL_PTR,
 618         as initial value for real_label_map.
 619         (copy_for_inline): Likewise.
 620
 621 Fri Sep  5 13:36:44 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 622
 623         * sched.c (update_flow_info) When looking if to set found_split_dest
 624         or found_orig_dest, look at all parts of a PARALLEL.
 625         * haifa-sched.c (update_flow_info): Likewise.
 626
 627 Fri Sep  5 10:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 628
 629         * v850: New directory for v850 port.
 630         * v850/lib1funcs.asm: New file.
 631         * t-v850, v850.c, v850.h, v850.md, xm-v850.h: New files.
 632         * ginclude/va-v850.h: New file.
 633         * ginclude/varargs.h, ginclude/stdarg.h: Include va-mn10200.h.
 634         * configure.in (mn10200-*-*): New target.
 635         * configure: Rebuilt.
 636         * config.sub: Handle v850-elf.
 637         * Makefile.in (USER_H): Add va-mn10200.h.
 638         * invoke.texi: Document v850 stuff.
 639
 640 Fri Sep  5 09:37:50 1997  Jim Wilson  (wilson@cygnus.com)
 641
 642         * sdbout.c (plain_type_1, case ARRAY_TYPE): Verify that TYPE_DOMAIN
 643         has integer TYPE_{MAX,MIN}_VALUE before using them.
 644
 645         * m68k/m68k.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Add
 646         __HPUX_ASM__ versions.
 647
 648 Fri Sep  5 09:08:44 1997  Jeffrey A Law  (law@cygnus.com)
 649
 650         * install.sh: Delete duplicate install script.
 651
 652 Thu Sep  4 23:14:27 1997  Stan Cox  (coxs@dg-rtp.dg.com)
 653
 654         * reg-stack.c (subst_stack_regs): Pop the stack register for a
 655         computed goto which sets the same stack register.
 656
 657         * reg-stack.c (compare_for_stack_reg): Swap only if the source and
 658         destination are both on the regstack.
 659         (subst_stack_regs_pat): Put the destination at the top of the regstack.
 660
 661 Thu Sep  4 15:02:27 1997  Jim Wilson  <wilson@cygnus.com>
 662
 663         * mips.md (nonlocal_goto_receiver): Define.
 664
 665         * profile.c (output_arc_profiler): Check next_insert_after for non
 666         NULL before deferencing it.
 667
 668         * i386/t-sol2 (TARGET_LIBGCC2_CFLAGS): Define to -fPIC.
 669
 670 Thu Sep  4 14:51:57 1997  Jeffrey A Law  (law@cygnus.com)
 671
 672         * i386.h (CPP_CPU_DEFAULT): Avoid using #elif.
 673
 674 Thu Sep  4 15:01:49 1997  Michael Meissner  <meissner@cygnus.com>
 675
 676         * toplev.c (rest_of_compilation): For passes starting with
 677         flow_analysis, use print_rtl_with_bb instead of print_rtl.
 678
 679         * print-rtl.c (print_rtl_single): Print a single rtl value to a
 680         file.
 681
 682         * flow.c (print_rtl_with_bb): Print which insns start and end
 683         basic blocks.  For the start of a basic block, also print the live
 684         information.
 685
 686 Thu Sep  4 11:51:43 1997  Jim Wilson  <wilson@cygnus.com>
 687
 688         * toplev.c (main): Change #elif to #else/#ifdef
 689
 690         * tlink.c: Include ctype.h.
 691         * ginclude/va-mips.h: Add _VA_MIPS_H_ENUM ifdef/define/endif.
 692
 693 Thu Sep  4 11:17:16 1997  Mikeael Meissner  (meissner@cygnus.com)
 694
 695         * bitmap.c: Conditionally include stdlib.h.
 696         (free): Provide a declaration if NEED_DECLARATION_FREE.
 697
 698 Thu Sep  4 09:58:53 1997  Joel Sherrill  (joel@OARcorp.com)
 699
 700         * i960/i960.h: Added default for SUBTARGET_SWITCHES macro.
 701
 702 Thu Sep  4 09:53:20 1997  Jim Wilson  (wilson@cygnus.com)
 703
 704         * profile.c (output_arc_profiler): Verify next_insert_after is an
 705         INSN before and after skipping a stack pop.
 706
 707 Thu Sep  4 07:39:19 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
 708
 709         * final.c (shorten_branches): Don't count the lengths of deleted
 710         instructions.
 711
 712 Thu Sep  4 09:43:01 1997  Jeffrey A Law  (law@cygnus.com)
 713
 714         * version.c: Bump for snapshot.
 715
 716 Thu Sep  4 11:04:21 1997  Michael Meissner  <meissner@cygnus.com>
 717
 718         * bitmap.h (EXECUTE_IF_AND_IN_BITMAP): New macro, to iterate over
 719         two bitmaps ANDed together.
 720         (bitmap_print): Declare.
 721
 722         * bitmap.c (function_obstack): Don't declare any more.
 723         (bitmap_obstack): Obstack for allocating links from.
 724         (bitmap_obstack_init): New static to say whether to initialize
 725         bitmap_obstack.
 726         (bitmap_element_allocate): Use bitmap_obstack to allocate from.
 727         (bitmap_release_memory): Free all memory allocated from
 728         bitmap_obstack.
 729
 730         * basic-block.h (EXECUTE_IF_AND_IN_REG_SET): New macro, invoke
 731         EXECUTE_IF_AND_IN_BITMAP.
 732
 733 Wed Sep  3 10:39:42 1997  Jim Wilson  <wilson@cygnus.com>
 734
 735         * alias.c (true_dependence): Address with AND can alias scalars.
 736         (anti_dependence, output_dependence): Likewise.
 737
 738         * alias.c (true_dependence): Test x for BLKmode, in addition to mem.
 739
 740 Wed Sep  3 09:28:50 CDT 1997  Joel Sherrill (joel@OARcorp.com)
 741
 742         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, m68k/rtems.h,
 743           mips/rtems64.h, pa/rtems.h, rs6000/rtems.h, sh/rtems.h,
 744           sparc/rtems.h (subtarget_switches): Removed SUBTARGET_SWITCHES
 745           definitions.  Use -qrtems instead of -mrtems.
 746
 747 Wed Sep  3 09:05:41 1997  Robert Lipe  (robert@dgii.com)
 748
 749         * xm-sco5.h (sys_siglist): Define.
 750         (SYS_SIGLIST_DECLARED): Likewise.
 751
 752 Tue Sep  2 23:33:33 1997  Jeffrey A Law  (law@cygnus.com)
 753
 754         * expr.c (convert_move): Handle truncation from TQFmode to QFmode.
 755
 756 Wed Sep  3 02:09:30 1997  Torbjorn Granlund  <tege@pdc.kth..se>
 757
 758         * except.c (eh_outer_context): Expand masking operation using
 759         expand_binop.
 760
 761 Tue Sep  2 18:09:39 1997  Jim Wilson  <wilson@cygnus.com>
 762
 763         * alpha.md (floatdisf2-1): New pattern.
 764
 765 Tue Sep  2 18:41:55 1997  Jeffrey A Law  (law@cygnus.com)
 766
 767         * xm-svr4.h (SYS_SIGLIST_DECLARED): Define.
 768         * xm-news.h (SYS_SIGLIST_DECLARED): Likewise.
 769         * xm-sysv4.h (SYS_SIGLIST_DECLARED): Likewise.
 770         * gcc.texi: Note that if you define sys_siglist that you should
 771         also define SYS_SIGLIST_DECLARED.
 772
 773         * mn10200.h (INITIALIZE_TRAMPOLINE): PC relative instructions
 774         are relative to the next instruction, not the current instruction.
 775
 776 Tue Sep  2 14:22:43 1997  Jim Wilson  <wilson@cygnus.com>
 777
 778         * local-alloc.c (contains_replace_regs): New function.
 779         (update_equiv_regs): When adding a REG_EQUIV note for a set of a MEM,
 780         verify that there is no existing REG_EQUIV note, and add a call to
 781         contains_place_regs.
 782
 783 Tue Sep  2 12:48:11 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 784
 785         * config/alpha/elf.h (CPP_PREDEFINES): Add -D__PIC__ -D__pic__.
 786         (STARTFILE_SPEC): Always use crtbegin.o%s
 787         (ENDFILE_SPEC): Always use crtend.o%s.
 788
 789 Tue Sep  2 12:00:36 1997  Jim Wilson  <wilson@cygnus.com>
 790
 791         * alpha/alpha.h (PREFERRED_RELOAD_CLASS): Return NO_REGS if NO_REGS
 792         is passed in.
 793         * emit-rtl.c (gen_lowpart_common): Add code to convert CONST_INT to
 794         SFmode for 64 bit hosts.
 795
 796 Tue Sep  2 13:42:38 1997  Paul N. Hilfinger  <hilfingr@CS.Berkeley.EDU>
 797
 798         * fixincludes: Permits spaces between # and define.  Discard C++
 799         comments in sys/pci.h on HP/UX 10.20.
 800
 801 Mon Sep  1 22:13:18 1997  Jeffrey A Law  (law@cygnus.com)
 802
 803         * version.c: Bump for snapshot.
 804
 805         * pa.c (restore_unscaled_index_insn_codes): New function.
 806         (record_unscaled_index_insn_codes): Likewise.
 807         (output_function_prologue): Call restore_unscaled_index_insn_codes.
 808         (output_function_epilogue): Free memory for unscaled_index_insn_codes.
 809         (pa_reorg): Call record_unscaled_index_insn_codes.
 810
 811         * haifa-sched.c (move_insn): Handle notes correctly for insns
 812         with SCHED_GROUP_P set.
 813
 814 Mon Sep  1 16:58:57 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
 815
 816         * alpha/xm-linux.h (USE_BFD): Undef before define.
 817
 818 Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
 819
 820         * cse.c (cse_insn): Don't record BLKmode values.
 821
 822 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)
 823
 824         * i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.
 825
 826 Mon Sep  1 08:29:46 1997  Jeffrey A Law  (law@cygnus.com)
 827
 828         * cccp.c (sys_errlist): Remove special 4.4bsd declaration.
 829         * collect2.c (sys_errlist): Likewise.
 830         * cpplib.c (sys_errlist): Likewise.
 831         * gcc.c (sys_errlist): Likewise.
 832         * protoize (sys_errlist): Likewise.
 833         * configure.in: Check for strerror.
 834         * xm-freebsd.h (HAVE_STRERROR): Remove definition.
 835         * xm-gnu.h (HAVE_STRERROR): Likewise.
 836         * xm-linux.h (HAVE_STRERROR): Likewise.
 837         * xm-netbsd.h (HAVE_STRERROR): Likewise.
 838         * xm-bsd386.h (HAVE_STRERROR): Likewise.
 839         * xm-cygwin32.h (HAVE_STRERROR): Likewise.
 840         * xm-dos.h (HAVE_STRERROR): Likewise.
 841         * xm-mingw32.h (HAVE_STRERROR): Likewise.
 842         * xm-pa.h (HAVE_STRERROR): Likewise.
 843         * xm-papro.h (HAVE_STRERROR): Likewise.
 844         * xm-sysv4.h (HAVE_STRERROR): Likewise.
 845         * configure, config.in: Rebuilt.
 846
 847         * Makefile.in: Add several missing "else true" clauses.
 848
 849         * collect2.c: Change DONT_DECLARE_SYS_SIGLIST to SYS_SIGLIST_DECLARED.
 850         * mips-tfile.c: Likewise.
 851         * gcc.texi: DONT_DECLARE_SYS_SIGLIST: Remove docs.
 852         * xm-linux.h (DONT_DECLARE_SYS_SIGLIST): Delete definition.
 853         * xm-freebsd.h, xm-bsd386.h, xm-sysv4.h, xm-sol2.h: Likewise.
 854         * configure.in: Check for sys_siglist declaration.
 855         * configure, config.in: Rebuilt.
 856
 857 Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
 858
 859         * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
 860         m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
 861         sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
 862         * i960/i960.h: Added SUBTARGET_SWITCHES macro.
 863         * rs6000/sysv4.h (extra_subtarget_switches): Added new
 864         macro EXTRA_SUBTARGET_SWITCHES.
 865         * configure.in (sh*-*-rtems*): New target.
 866         * sh/rtems.h: New file.
 867         * sh/sh.h: Added SUBTARGET_SWITCHES macro.
 868         * configure: Rebuilt.
 869
 870 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 871
 872         * unroll.c (calculate_giv_inc): Handle increment with code PLUS.
 873
 874 Sat Aug 30 10:49:46 1997  David Edelsohn  <edelsohn@mhpcc.edu>
 875
 876         * rs6000.md: Make DF fused-add operations pay attention to
 877         -mno-fused-add.
 878
 879 Fri Aug 29 19:19:54 1997  Jim Wilson  <wilson@cygnus.com>
 880
 881         * i386/xm-sysv4.h (DONT_DECLARE_SYS_SIGLIST): Define.
 882
 883 Fri Aug 29 16:13:51 1997  Jeffrey A Law  (law@cygnus.com)
 884
 885         * pa.md (reload_peepholes): Make sure operand is a REG before
 886         examining REGNO.  Allow general registers too.
 887
 888 Fri Aug 29 11:42:04 1997  Jim Wilson  <wilson@cygnus.com>
 889
 890         * varasm.c (mark_constants): Don't look inside CONST_DOUBLEs.
 891
 892 Fri Aug 29 09:33:20 1997  Philipp Thomas  (kthomas@lxi165.gwdg.de)
 893
 894         * dwarf2out.c (build_abbrev_table): Use xrealloc, not xmalloc
 895         to reallocate abbrev_die_table.
 896
 897 Thu Aug 28 15:14:46 1997  Jim Wilson  <wilson@cygnus.com>
 898
 899         * m68k/m68k.md (iorsi_zexthi_ashl16): Disable.
 900
 901 1997-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 902
 903         * Makefile.in (config.status): Depend on version.c
 904
 905         * expr.h (insn_gen_function): Reenable prototype.
 906
 907         * expr.c (move_by_pieces_1, clear_by_pieces_1): Fix prototype of
 908         first parameter.
 909
 910 Thu Aug 28 13:01:43 1997  Jim Wilson  <wilson@cygnus.com>
 911
 912         * i386.c (ix86_expand_epilogue): Emit blockage instruction when pic.
 913
 914 Thu Aug 28 07:03:15 1997  Jeffrey A Law  (law@cygnus.com)
 915
 916         * version.c: Bump for latest snapshot.
 917
 918         * bc-optab.c: Conditionally include stdlib.h.
 919         (free): Provide a declaration if NEED_DECLARATION_FREE.
 920         * tree.c (free): Provide a declaration if NEED_DECLARATION_FREE.
 921         * rtl.h (free): Remove declaration.
 922         * tree.h (free): Remvoe declaration.
 923
 924         * configure: Rebuilt.
 925
 926 Wed Aug 27 21:32:20 1997  Jeffrey A Law  (law@cygnus.com)
 927
 928         * flags.h (flag_move_all_movables): Declare.
 929         (flag_reduce_all_givs): Likewise.
 930         * loop.c (move_movables): Handle flag_move_all_movables.
 931         (strength_reduce): Handle flag_reduce_all_givs.
 932         * toplev.c (flag_move_all_movables): Define.
 933         (flag_reduce_all_givs): Likewise.
 934         (f_options): Add -fmove-all-movables and -freduce-all-givs.
 935         * invoke.texi: Document new options, including alias stuff that
 936         wasn't included last time.
 937
 938 Wed Aug 27 18:08:51 1997  Bob Manson  (manson@cygnus.com)
 939
 940         * t-h8300: Use TARGET_LIBGCC2_CFLAGS instead of LIBGCC2_CFLAGS.
 941         * t-mn10200: Ditto.
 942         * t-vxsparc: Ditto.
 943         * t-vxworks68: Ditto.
 944         * t-vxworks960: Ditto.
 945         * t-vx29k: Ditto.
 946
 947 Wed Aug 27 16:35:29 1997  Richard Henderson  <rth@cygnus.com>
 948
 949         * alpha/xm-alpha.h (alloca): Define alloca to builtin_alloca for GNUC
 950         if not already defined, and USE_C_ALLOCA not defined.
 951
 952 Wed Aug 27 16:08:43 1997  Jim Wilson  <wilson@cygnus.com>
 953
 954         * config.guess: Replace with script that uses ../config.guess.
 955
 956         * config/alpha/elf.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1
 957         if USE_GNULIBC_1 is not defined.
 958
 959 Wed Aug 27 15:49:12 1997  Richard Henderson  <rth@cygnus.com>
 960
 961         * alpha/elf.h (LINK_SPEC): Conditionalize on USE_GNULIBC_1.
 962         * config.guess: Recognize alpha-linux-gnulibc1.
 963         * configure.in (alpha-*-linux-gnulibc1): New target.
 964         (alpha-*-linux-gnu*): Don't build crtbegin/end.
 965
 966 Wed Aug 27 11:52:58 1997  Jim Wilson  <wilson@cygnus.com>
 967
 968         * m68k.md (iorsi3_internal): Readd ! TARGET_5200 check lost in
 969         last change.
 970
 971 Wed Aug 27 01:56:18 1997  Doug Evans  <dje@seba.cygnus.com>
 972
 973         * loop.c (combine_movables): Earlier insns don't match later ones.
 974
 975 Wed Aug 27 01:24:25 1997  H.J. Lu   (hjl@gnu.ai.mit.edu)
 976
 977         * config/linux.h (CC1_SPEC): Define it only if not defined.
 978
 979         * config/m68k/linux.h (CC1_SPEC): Undefine it before include
 980         <linux.h>
 981
 982         * config/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined as 1 if
 983         USE_GNULIBC_1 is not defined.
 984
 985         * config/rs6000/linux.h (DEFAULT_VTABLE_THUNKS): New.  Defined as 1.
 986
 987         * config/sparc/linux.h (DEFAULT_VTABLE_THUNKS): New. Defined
 988         as 1 if USE_GNULIBC_1 is not defined.
 989
 990 Wed Aug 27 00:49:14 1997  Jeffrey A Law  (law@cygnus.com)
 991
 992         * reorg.c (dbr_schedule): Allow current_function_return_rtx
 993         to be something other than a REG.
 994         * function.c (expand_function_end): Fix current_function_return_rtx
 995         if it was a pseudo.
 996
 997         * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS.
 998         * x-netbsd: Likewise
 999         * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS
1000         (INSTALL_HEADERS): Delete.
1001         * x-dguxbcs: Likewise.
1002         * x-hp3bsd44: Likewise
1003         * x-pa: Likewise.
1004
1005 Wed Aug 27 00:30:00 1997  Bernd Schmidt  <crux@pool.informatik.rwth-aachen.de>
1006
1007         * i386.md (pop): pop increments the stack pointer.
1008         (prologue_set_stack_ptr): New pattern.
1009         * i386.c (ix86_expand_prologue): Use prologue_set_stack_ptr
1010         instead of subsi3.
1011
1012 Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
1013
1014         * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
1015         address where an offsettable address is required.
1016
1017 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
1018
1019         * loop.c (check_final_value): Don't miss a biv increment in a
1020         parallel.
1021
1022 Tue Aug 26 12:03:49 1997  Jim Wilson  (wilson@cygnus.com)
1023
1024         * dwarfout.c (dwarfout_file_scope_decl, case TYPE_DECL): Check
1025         TYPE_DECL_IS_STUB instead of DECL_NAME.
1026
1027 Mon Aug 25 23:27:10 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
1028
1029         * objc/Make-lang.in ($(OBJC_O)): Also depend on cc1obj.
1030
1031 Mon Aug 25 23:27:10 1997  Jim Meyering <meyering@eng.ascend.com>
1032
1033         * objc/Make-lang.in ($(OBJC_O)): Also depend on $(GCC_PASSES).
1034
1035 Mon Aug 25 13:12:24 1997  Jeffrey A Law  (law@cygnus.com)
1036
1037         * haifa-sched.c (find_pre_sched_live): Remove #if 0 code.
1038         (find_post_sched_live): Likewise.
1039
1040         * haifa-sched.c (schedule_block): Remove old code to get arguments
1041         from hard regs into pseudos early.
1042
1043 Mon Aug 25 08:55:00 1997  Jeffrey A Law  (law@cygnus.com)
1044
1045         * version.c: Bump for new snapshot.
1046
1047         * local-alloc.c (update_equiv_regs): All the target to reject
1048         promotion of some REG_EQUAL to REG_EQUIV notes.
1049         * pa.h (DONT_RECORD_EQUIVALENCE): Define.
1050
1051         * pa.c (secondary_reload_class): (mem (mem ... )) does not need
1052         secondary reloads.
1053
1054         * pa.c (hppa_builtin_saveregs): Emit a blockage insn after the
1055         store of the argument registers.
1056
1057 Mon Aug 25 08:39:02 1997  Craig Burley  (burley@gnu.ai.mit.edu)
1058
1059         * fold-const.c (multiple_of_p): New function.
1060         (fold): Turn some cases of *_DIV_EXPR into EXACT_DIV_EXPR.
1061
1062 Mon Aug 25 01:47:41 1997  Jeffrey A Law  (law@cygnus.com)
1063
1064         * expr.h (insn_gen_function): Temporarily remove prototype.
1065
1066 Sun Aug 24 17:22:21 1997  Jim Wilson  <wilson@cygnus.com>
1067
1068         * Makefile.in (install-info): Don't cd into srcdir.  Add srcdir to
1069         filenames.  Use sed to extract base filename for install.
1070
1071 Sat Aug 23 18:19:40 1997  John F. Carr  <jfc@mit.edu>
1072
1073         * unroll.c (find_splittable_givs): Only share if two givs have the
1074         same add and multiply values.
1075
1076 Sat Aug 23 14:36:27 1997  Jim Wilson  <wilson@cygnus.com>
1077
1078         * m68k/next.h (GO_IF_INDEXABLE_BASE): Fix typo in undef.
1079         * m68k/m68kemb.h (LIB_SPEC): Add missing comment end before it.
1080
1081 Sat Aug 23 00:18:22 1997  Jeffrey A Law  (law@cygnus.com)
1082
1083         * pa.c (pa_reorg): Always put begin_brtab and end_brtab insns
1084         around branch tables.
1085         * pa.md (begin_brtab, end_brtab): Only emit the .begin_brtab
1086         and .end_brtab directives if TARGET_GAS.
1087
1088 Fri Aug 22 14:05:55 1997  Jim Wilson  <wilson@cygnus.com>
1089
1090         * alias.c (true_dependence): Pass x_addr not x to varies.
1091
1092         * acconfig.h (NEED_DECLARATION_CALLOC): Add.
1093         * configure.in: Add GCC_NEED_DECLARATION call for calloc.
1094         * rs6000/xm-rs6000.h (malloc, realloc, calloc, free): Delete
1095         declarations.
1096         * config.in, configure: Regenerate.
1097
1098 Thu Aug 21 23:52:16 1997  John F. Carr  <jfc@mit.edu>
1099
1100         * alias.c (find_base_value): Improve handling of PLUS, MINUS, and
1101         LO_SUM.
1102         (record_set): Handle LO_SUM like PLUS.
1103         (init_alias_analysis): When following chains of base addresses,
1104         do not stop on reaching a hard register.
1105
1106 Thu Aug 21 20:17:37 1997  Jeffrey A Law  (law@cygnus.com)
1107
1108         * version.c: Bump for new snapshot.
1109
1110 Thu Aug 21 17:28:00 1997  Jim Wilson  <wilson@cygnus.com>
1111
1112         * alpha.h (ARCH_ASM_FILE_START): Define.
1113         (ASM_FILE_START): Use ARCH_ASM_FILE_START.
1114         * osf12.h, osf2or3.h (ARCH_ASM_FILE_START): Redefine to null string.
1115
1116 Thu Aug 21 10:22:19 1997  Jeffrey A Law  (law@cygnus.com)
1117
1118         * Makefile.in (install-common): Put gcov comment at start of line.
1119
1120 Wed Aug 20 22:47:33 1997  Jeffrey A Law  (law@cygnus.com)
1121
1122         * alias.c (init_alias_analysis): When simplifying the reg_base_value
1123         array, simplify entries for hard registers too.
1124
1125 Wed Aug 20 12:35:47 1997  Dave Love  <d.love@dl.ac.uk>
1126
1127         * dwarf2.h (enum dwarf_call_frame_info): Remove trailing comma from
1128         list.
1129
1130 Wed Aug 20 11:58:33 1997  Jim Wilson  <wilson@cygnus.com>
1131
1132         * stmt.c (start_cleanup_deferal, end_cleanup_deferal): Test
1133         block_stack before dereferencing it.
1134
1135 Wed Aug 20 11:57:11 1997  Michael Meissner  <meissner@cygnus.com>
1136
1137         * rs6000.h (ISSUE_RATE): Define instead of MACHINE_issue_rate.
1138
1139 Tue Aug 19 17:10:56 1997  Jason Merrill  <jason@yorick.cygnus.com>
1140
1141         * cplus-dem.c: Add 'extern' to prepends_underscore.
1142
1143 Tue Aug 19 09:34:57 1997  Jeffrey A Law  (law@cygnus.com)
1144
1145         * haifa-sched.c (ISSUE_RATE): Renamed from MACHINE_issue_rate.
1146         (get_issue_rate): Delete.
1147         * pa.h (ISSUE_RATE): Define.
1148
1149         * configure.in: Turn on haifa by default for the PA.
1150         * configure: Rebuilt.
1151         * pa.c (override_options): Accept -mschedule=7200 option.
1152         (pa_adjust_cost): No longer need to scale costs for newer
1153         processors.
1154         * pa.h (enum processor_type): Add PROCESSOR_7200.
1155         * pa.md: Revamp scheduling parameters to work better with
1156         haifa.  Add scheduling parameters for the 7200.
1157
1158         * haifa-sched.c (move_insn): Reemit notes for SCHED_GROUP_P
1159         insns too.
1160         (schedule_block): When adjusting basic_block_{head,end}, account
1161         for movement of SCHED_GROUP_P insns too.
1162
1163         * haifa-sched.c (debug_dependencies): Fix thinko.
1164
1165         * Makefile.in (EXPECT, RUNTEST, RUNTESTFLAGS): Define.
1166         (site.exp, check, check-g++, check-gcc): New targets.
1167
1168         * haifa-sched.c: Make lots of variables static.
1169
1170 Tue Aug 19 07:18:34 1997  H.J. Lu  (hjl@gnu.ai.mit.edu)
1171
1172         * expr.h, real.h: Finish prototyping.
1173
1174 Mon Aug 18 21:49:02 1997  Jim Wilson  <wilson@cygnus.com>
1175
1176         * reload.c (find_reloads): Add code to convert RELOAD_FOR_OPADDR_ADDR
1177         reloads to RELOAD_FOR_OPERAND_ADDRESS reloads.
1178         * reload1.c: Undo bugfix from Aug 11.
1179
1180 Mon Aug 18 17:39:02 1997  Mike Meissner  <meissner@cygnus.com>
1181
1182         * configure.in ({powerpc,rs6000}*-*-*, --with-cpu): Remove single
1183         quotes around the name.
1184         * configure: Regenerate.
1185
1186 Mon Aug 18 13:46:47 1997  Jim Wilson  <wilson@cygnus.com>
1187
1188         * Makefile.in (stmp-multilib-sub): Fix typo in last change.
1189
1190 Thu Aug  7 10:33:13 1997  Manfred Hollstein  <manfred@s-direktnet.de>
1191
1192         * Makefile.in (sub-makes): Pass the current value of LANGUAGES down
1193         to sub-makes to avoid building more passes than the user might have
1194         requested on the command line.
1195
1196 Sun Aug 17 15:42:17 1997  Dave Love  (d.love@dl.ac.uk)
1197
1198         * configure.in: Expurgate `broken_install' (install is
1199         autoconfed).
1200
1201         * configure.lang: Substitute autoconfed ${INSTALL} (not currently
1202         relevant).
1203
1204 Sat Aug 16 01:08:12 1997  Jeffrey A Law  (law@cygnus.com)
1205
1206         * loop.c (is_power_of_2, is_conditional_branch): Delete unused
1207         functions and declarations.
1208         (analyze_loop_iterations): Use condjump_p.
1209         (insert_bct): Likewise.  Use exact_log2.
1210
1211 Fri Aug 15 23:48:32 1997  Jeffrey A Law  (law@cygnus.com)
1212
1213         * haifa-sched.c (find_post_sched_live): Call FREE_REG_SET as needed.
1214         (schedule_region): Likewise.
1215         (schedule_insns): Likewise.
1216
1217         * PROJECTS: Update with Haifa stuff.
1218
1219 Fri Aug 15 12:49:56 1997  Jeffrey A Law  (law@cygnus.com)
1220
1221         * version.c: Change the version string to look like:
1222         egcs-2.90.00 970814 (gcc2-970802 experimental).
1223
1224         * loop.c (is_conditional_branch): Make definition match declaration.
1225
1226         * gcc.c: Take out experimental snapshot warning message.
1227
1228 Fri Aug 15 13:43:39 1997  Michael Meissner  <meissner@cygnus.com>
1229
1230         * haifa-sched.c (debug_dependencies): Use GET_NOTE_INSN_NAME to
1231         print out the names of the notes.  Print out the name of the insn
1232         that is not a note, and not an {,CALL_,JUMP_}INSN.
1233
1234 Wed Aug 13 17:32:38 1997  Jason Merrill  <jason@yorick.cygnus.com>
1235
1236         * expr.c (expand_expr, case TARGET_EXPR): Call mark_addressable
1237         again for the slot after we give it RTL.
1238
1239 Wed Aug 13 01:03:37 1997  Doug Evans  <dje@canuck.cygnus.com>
1240
1241         * configure.in (haifa configury): Fix typo.
1242         * configure: Regenerate.
1243
1244 Tue Aug 12 10:20:36 1997  Jeffrey A Law  (law@cygnus.com)
1245
1246         * version.c: Bump version to "gcc-3.0.0 970802 experimental".
1247
1248         * gcc.info*: Rebuilt.
1249
1250         * COPYING.g77, README.g77: New files.
1251         * real.c (ereal_unto_float, ereal_unto_double): New functions.
1252         * real.h (ereal_unto_float, ereal_unto_double): Declare them.
1253         (REAL_VALUE_UNTO_TARGET_DOUBLE, REAL_VALUE_UNTO_TARGET_SINGLE): Define.
1254
1255 Mon Aug 11 14:50:55 1997  Jeffrey A Law  (law@cygnus.com)
1256
1257         * Integrate Haifa instruction scheduler.
1258         * Makefile.in (ALL_CFLAGS): Add SCHED_CFLAGS.  Prefix all references
1259         to sched with $(SCHED_CFLAGS.
1260         * configure.in: Handle --enable-haifa.
1261         * configure: Rebuilt.
1262         * flags.h: Add new flags for haifa instruction scheduler.
1263         * genattrtab.c (expand_units): For haifa, don't subtract one
1264         when computing blockage.
1265         * toplev.h (flag_schedule_interblock): Haifa scheduler flag.
1266         (flag_schedule_speculative): Ditto.
1267         (flag_schedule_speculative_load): Ditto.
1268         (flag_schedule_speculative_load_dangerous): Ditto.
1269         (flag_schedule_reverse_before_reload): Ditto.
1270         (flag_schedule_reverse_after_reload): Ditto.
1271         (flag_branch_on_count_reg): Ditto.
1272         (f_options): Add Haifa switches.
1273         (main): Turn off some Haifa options if appropriate macro is
1274         defined.  Process Haifa switches.
1275         * unroll.c (iteration_info): No longer static, since Haifa
1276         scheduler uses it.
1277         (unroll_loop): Inform HAIFA scheduler about loop unrolling factor.
1278         * unroll.c (unroll_loop): Set loop_unroll_iter, loop_start_value.
1279         * loop.h (loop_unroll_factor, loop_number): Add HAIFA decls.
1280         * loop.h (loop_initial_value,loop_unroll_iter): New globals.
1281         * loop.c (loop_optimize): If HAIFA is defined, allocate additional
1282         storage for the Haifa scheduler.
1283         (mark_loop_jump): If HAIFA defined, set LABEL_OUTSIDE_LOOP_P and
1284         LABEL_NEXTREF.
1285         (strength_reduce): If HAIFA and HAVE_decrement_and_branch_on_count
1286         are defined, call analyze_loop_iterations and insert_bct to use
1287         countdown loops.
1288         (record_giv): Refine test for jumps out of loops if HAIFA is
1289         defined.
1290         (analyze_loop_iterations): New function to identify if we can use
1291         a countdown loop.
1292         (insert_bct): Insert countdown loop.
1293         (instrument_loop_bct): Low level code to insert countdown loop.
1294         (loop_number): Calculate UID of loop.
1295         (indirect_jump_in_function_p): Return true if an indirect jump is
1296         in the function.
1297         (is_power_of_2): Return true if value is a power of 2.
1298         (is_conditional_branch): Return true if insn is a conditional
1299         jump.
1300         (fix_bct_param): Process -fbct-{min,max}-N switches.
1301         (check_bct_param): Return true if loop should be instrumented.
1302         * loop.c (loop_initial_value,loop_unroll_iter): New globals.
1303         (loop_optimize): Initialize.
1304         (get_condition_for_loop): Ditto.
1305         * loop.c (strength_reduce): Inside of code that uses #ifdef
1306         HAVE_decrement_and_branch_on_count code, test it to make sure the
1307         condition is true.
1308         (instrument_loop_bct): Ditto.
1309         * haifa-sched.c: New file.
1310
1311
1312         * Integrate regmove pass.
1313         * Makefile.in (OBJS): Add regmove.o
1314         (regmove.o): Add dependencies.
1315         * flow.c (find_use_as_address): No longer static.
1316         * rtl.h (find_use_as_address): Declare.
1317         * toplev.c (regmove_dump, flag_regmove): Define.
1318         (f_options): Add -fregmove.
1319         (regmove_dump_file, regmove_time): Define.
1320         (fatal_insn): Close the regmove dump file.
1321         (compile_file): Initialize regmove_time; open/close the regmove dump
1322         file as needed.  Print regmove time as needed.
1323         (rest_of_compilation): Run regmove pass if requested, dump
1324         RTL after regmove if requested.
1325         (main): If -O2 or more, turn on regmove.  Handle dump switches.
1326         * regmove.c: New file.
1327
1328 Mon Aug 11 14:15:02 1997  Jeffrey A Law  (law@cygnus.com)
1329
1330         * Integrate tlink patch from jason@cygnus.com
1331         * gcc.c (SWITCH_TAKES_ARG): Add 'V', 'B' and 'b'.
1332         (process_command): Increment n_switches for them.  Don't discard
1333         their args.  Validate them.
1334         (main): Escape " marks when creating COLLECT_GCC_OPTIONS.
1335         From Rohan Lenard.
1336         (process_command): Set include_prefixes from COMPILER_PATH.
1337         (main): Set COLLECT_GCC_OPTIONS sooner.
1338         * confiugre.in: Link ../ld/ld.new to collect-ld rather than real-ld.
1339         * tlink.c, hash.c, hash.h: New files.
1340         * Makefile.in (USE_COLLECT2): Always use collect2.
1341         (collect2): Depend on and link in hash.o and tlink.o.
1342         (tlink.o, hash.o): Add dependencies.
1343
1344 Mon Aug 11 10:04:49 1997  Jeffrey A Law  (law@cygnus.com)
1345
1346         * Integrate alias analysis changes from jfc@mit.edu
1347         * Makefile.in (OBJS): Add alias.o
1348         (alias.o): Add dependencies.
1349         * alias.c: New file.
1350         * sched.c: Remove alias analysis code.  It lives in alias.c now.
1351         (sched_analyze_2): Add new arguments to true_dependence.
1352         (schedule_insns): Always call init_alias_analysis.
1353         * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
1354         mark return value from such functions as a pointer and keep track of
1355         them for alias analysis.  If a return value from a function is a
1356         pointer, mark it as such.
1357         * combine.c (distribute_notes): Handle REG_NOALIAS.
1358         * cse.c (struct write_data): Delete.  No longer needed.
1359         (invalidate): Don't call set_nonvarying_address_components anymore.
1360         Use true_dependence to decide if an entry should be removed from
1361         the hash table.
1362         (invalidate_memory): Remove WRITES argument, simplify appropriately.
1363         Fix all callers.
1364         (note_mem_written): Similarly for WRITE_PTR argument.
1365         (invalidate_from_clobbers): Similarly for W argument.
1366         (invalidate_for_call): Remove memory elements from the hash table.
1367         (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
1368         (cse_rtx_varies_p): New function.  Derived from old
1369         cse_rtx_addr_varies_p.
1370         (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
1371         Don't call note_mem_written anymore.  Stack pushes invalidate the stack
1372         pointer if PUSH_ROUNDING is defined.  No longer need to call
1373         cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
1374         (skipped_writes_memory): Remove variable.
1375         (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
1376         (invalidate_skipped_block): Simplify for new alias analysis code.
1377         (cse_set_around_loop): Likewise.
1378         (cse_main): Call init_alias_analysis.
1379         * flags.h (flag_alias_check, flag_argument_noalias): Declare.
1380         * toplev.c (flag_alias_check, flag_argument_noalias): Define.
1381         (f_options): Add new alias checking arguments.
1382         (main): Set flag_alias_check when optimizing.
1383         * local_alloc (validate_equiv_mem_from_store): Add new arguments
1384         to true_dependence.
1385         (memref_referenced_p): Likewise.
1386         * loop.c (NUM_STORES): Increase to 30.
1387         (prescan_loop): Only non-constant calls set unknown_address_altered.
1388         (invariant_p): Add new arguments to true_dependence.
1389         (record_giv): Initialize unrolled and shared fields.
1390         (emit_iv_add_mult): Call record_base_value as needed.
1391         * loop.h (struct induction): Add unrolled and shared fields.
1392         * unroll.c  (unroll_loop): Call record_base_value as needed.
1393         (copy_loop_body): Likewise.
1394         (final_biv_value): Likewise.
1395         (final_giv_value): Likewise.
1396         (find_splittable_regs): Likewise.  Only create one new pseudo
1397         if we have multiple address GIVs that were combined with the same
1398         dst_reg GIV.  Note when a new register is created due to unrolling.
1399         * rtl.c (reg_note_name): Add REG_NOALIAS.
1400         * rtl.h (enum reg_note): Similarly.
1401         (rtx_varies_p, may_trap_p, side_effects_p): Declare.
1402         (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
1403         (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
1404         (true_dependence, read_dependence, anti_dependence): Likewise.
1405         (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
1406         (mark_user_reg, mark_reg_pointer): Likewise.
1407
1408
1409         * Integrate reload bugfix from Wilon which enables the PA port
1410         to bootstrap again.
1411         * reload1.c (reload): Sum needs for both OPADDR_ADDR and and
1412         OPERAND_ADDRESS when computing how many registers an insn needs.
1413         (reload_reg_free_p): OPADDR_ADDR and OPERAND_ADDRESS reloads do
1414         conflict.
1415         (reload_reg_free_before_p): Treat OPERAND_ADDRESS reloads just like
1416         OPADDR_ADDR reload.
1417         (reload_reg_reaches_end_p): For RELOAD_FOR_OPADDR_ADDR insns, registers
1418         in reload_reg_use_in_op_addr do not reach the end.
1419         do not reach the end.
1420         (reloads_conflict): RELOAD_FOR_OPADDR_ADDR conflicts with
1421         RELOAD_FOR_OPERAND_ADDRESS.
1422
1423 Sun Aug 10 12:00:20 1997  Jeffrey A Law  (law@cygnus.com)
1424
1425         * egcs project officially starts.
1426