gcc/ChangeLog

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