gcc/ChangeLog

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