gcc/ChangeLog

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