gcc/ChangeLog

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