va_list.h: New file.

[gcc.git] / gcc / ChangeLog

Mon Aug 31 13:57:55 1998  Richard Henderson  <rth@cygnus.com>

        * alpha/va_list.h: New file.
        * alpha/x-alpha (EXTRA_HEADERS): New.  Add va_list.h.

Mon Aug 31 14:55:02 1998  Jeffrey A Law  (law@cygnus.com)

        * NEWS: Fix typos.

Mon Aug 31 15:42:18 1998  Dave Brolley  <brolley@cygnus.com>

        * varasm.c (compare_constant_1): Handle RANGE_EXPR.
        (record_constant_1): Handle RANGE_EXPR.

Mon Aug 31 10:54:03 1998  Richard Henderson  <rth@cygnus.com>

        * print-rtl.c (print_rtx): NOTE_INSN_LIVE has an rtx not a bitmap.
        * haifa-sched.c (sched_analyze): Handle NOTE_INSN_RANGE_START
        and NOTE_INSN_RANGE_END specially.
        (reemit_notes): Likewise.

Mon Aug 31 10:18:52 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * sparc.c (TMASK, UMASK): Use `(unsigned)1' not `1U'.
        (ultrasparc_sched_init): Remove unneeded &.

Mon Aug 31 10:47:16 1998  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

        * config/m68k/m68k.h (TARGET_SWITCHES): Don't remove MASK_68040
        for m68020-60, to prevent the use of fintrz.

Sun Aug 30 22:17:20 1998  Mark Mitchell  <mark@markmitchell.com>

        * configure.in: If the native compiler is GCC use $(WARN_CFLAGS) 
        even in stage1. 
        * Makefile.in: Likewise.
        * configure: Regenerated.

Sun Aug 30 22:15:41 1998  H.J. Lu  (hjl@gnu.org)

        * configure.in (gxx_include_dir): Changed to
        '${prefix}/include/g++'-${libstdcxx_interface}.
        * configure: Rebuilt.

Sun Aug 30 20:19:43 1998  Hans-Peter Nilsson  <hp@axis.se>

        * expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
        consistent.
        * tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
        *sequences* *below* which scalar moves will be used.

Sun Aug 30 17:18:43 1998  Jeffrey A Law  (law@cygnus.com)

        * collect2.c (mktemp): Delete unused declaration.

        * config/xm-netbsd.h: Remove unnecessary file.
        * config/*/xm-netbsd.h: Do not include the generic xm-netbsd.h
        file anymore, it is not needed.

Sun Aug 30 16:05:45 1998  Mark Mitchell  <mark@markmitchell.com>

        * convert.c (convert_to_integer): Issue an error on conversions to
        incomplete types.

Sun Aug 30 16:47:20 1998  Martin von Lvwis  <loewis@informatik.hu-berlin.de>

        * Makefile.in: Add lang_tree_files and gencheck.h.
        * configure.in: Generate them.
        * gencheck.c: Include gencheck.h.

Sat Aug 29 21:38:24 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (pic_lo_sum_di, pic_sethi_di): Rename to
        movdi_lo_sum_pic and movdi_high_pic and make visible.
        * config/sparc/sparc.c (legitimize_pic_address): For -fPIC,
        emit these when Pmode is not SImode.
        * config/sparc/linux64.h (SPARC_DEFAULT_CMODEL): Make CM_MEDLOW.

Sat Aug 29 14:59:32 1998  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin32.h (ASM_OUTPUT_SECTION_NAME): Don't emit
        .linkonce directive after the first time.

Sat Aug 29 12:39:56 1998  Jeffrey A Law  (law@cygnus.com)

        * m68k.md (beq0_di): Generate correct (and more efficient) code when
        the clobbered operand overlaps with an input.
        (bne0_di): Similarly.

        * Makefile.in (INSTALL): Remove "--no-header" argument.

        * NEWS: Various updates.

Fri Aug 28 19:00:44 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (arith_operand, const64_operand,
        const64_high_operand, arith_double_4096_operand): Mark mode as
        unused.
        (create_simple_focus_bits): Remove unused arg highest_bit_set, all
        callers changed.
        (sparc_emit_set_const64): Remove unused variable i.
        (sparc_splitdi_legitimate): Likewise for addr_part.
        (ultra_code_from_mask): Likewise for mask.
        (ultra_cmove_results_ready_p): Fixup entry modulo calc. and
        reverse return values so it matches usage and comments.
        (ultra_flush_pipeline): Likewise.
        (ultra_fpmode_conflict_exists): Likewise, remove unused variable
        this_type, and allow loads and stores of differing FP modes as
        they do not create a conflict.
        (ultra_find_type): Initialize fpmode to SFmode, fix
        parenthesization thinkos in large conditional.
        (ultrasparc_sched_init): Mark dump and sched_verbose as unused.
        Init free_slot_mask after ultra_cur_hist is reset, not before.
        (ultrasparc_rescan_pipeline_state): Remove unused variable ucode.
        (ultrasparc_sched_reorder): Don't bzero current pipeline state,
        use ultra_flush_pipeline instead, then re-init group pointer.
        Fix statement with no effect.  If no progress made in, and no
        instructions scheduled at all, advance to new pipeline cycle else
        we get into an endless loop.
        (ultrasparc_adjust_cost): Remove previous arg.
        * config/sparc/sparc.h (ADJUST_COST): Update to reflect that.
        
Fri Aug 28 13:52:35 1998  Jim Wilson  <wilson@cygnus.com>

        * sparc.md (DImode, DFmode, TFmode splits): Delete self_reference
        code.  Use reg_overlap_mentioned_p to detect when source and
        destination overlap.
        (negtf2_notv9+1): Use DFmode instead of SFmode in last two operands.

1998-08-28  Brendan Kehoe  <brendan@cygnus.com>

        * loop.c (check_dbra_loop): Pass COMPARISON_VALUE, not
        COMPARISON_VAL, into invariant_p.

Fri Aug 28 15:13:25 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * regmove.c (regclass_compatible_p): New function.
        (regmove_optimize): Use it.

        Use NREGS parameter insted of calling max_reg_num.

        (fixup_match_1): Don't use code = MINUS when later tieing with
        a hard register is likely.

Fri Aug 28 14:54:07 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (check_dbra_loop): Fix calculation of FINAL_VALUE when
        COMPARISON_VAL was normalized.

Thu Aug 27 20:10:46 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (check_dbra_loop): The loop ending comparison value
        must be an invariant or we can not reverse the loop.

        * loop.c (scan_loop): Count down from max_reg_num - 1 to
        FIRST_PSEUDO_REGISTER to avoid calling max_reg_num each iteration
        of the loop.
        (load_mems_and_recount_loop_regs_set): Likewise.

        * i386.c (print_operand): Remove obsolete 'c' docs.

Wed Aug 26 17:13:37 1998  Tom Tromey  <tromey@cygnus.com>

        * gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
        * frame.c (init_object_mutex): New function.
        (init_object_mutex_once): Likewise.
        (find_fde): Call it.
        (__register_frame_info): Likewise.
        (__register_frame_info_table): Likewise.
        (__deregister_frame_info): Likewise.

Thu Aug 27 15:14:18 1998  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (sched_analyze_insn): Fix thinko in last change.

Thu Aug 27 16:34:51 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (check_dbra_loop): Enable code for reversal
        of some loops without a known constant loop end.

Wed Aug 26 18:38:15 1998  Richard Henderson  <rth@cygnus.com>

        * haifa-sched.c (last_clock_var): New.
        (schedule_block): Initialize it.
        (schedule_insn): Use it to fill insn modes with issue information.

        * alpha.c (alpha_handle_trap_shadows): Remove do-nothing exit.
        Tag trapb and next insn with TImode.
        (alphaev5_insn_pipe, alphaev5_next_group, alphaev5_align_insns): New.
        (alpha_reorg): Add conditional for alpha_handle_trap_shadows.
        Invoke alphaev5_align_insns as appropriate.
        * alpha.h (LABEL_ALIGN_AFTER_BARRIER): Was ALIGN_LABEL_AFTER_BARRIER.
        (MD_SCHED_VARIABLE_ISSUE): New.
        * alpha.md (attr type): Add multi.
        (define_asm_attributes): New.
        (prologue_stack_probe_loop, builtin_setjmp_receiver): Set type multi.
        (arg_home): Likewise.
        (fnop, unop, realign): New.

Wed Aug 26 15:55:41 1998  Jim Wilson  <wilson@cygnus.com>

        * iris5.h (PREFERRED_DEBUGGING_TYPE): Undef.
        * iris5gas.h (PREFERRED_DEBUGGING_TYPE): Define.

        * configure.in (powerpc-ibm-aix4.[12]*): Change from 4.[12].*.
        (rs6000-ibm-aix4.[12]*): Likewise.
        * configure: Regnerate.

Wed Aug 26 09:30:59 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (thumb_exit): Do not move a4 into lr if it
        already contains the return address.

Wed Aug 26 12:57:09 1998  Jeffrey A Law  (law@cygnus.com)

        * calls.c (expand_call): Use bitfield instructions to extract/deposit
        word sized hunks when loading unaligned args into registers.

        * haifa-sched.c (sched_analyze_insn): Only create scheduling
        barriers for LOOP, EH and SETJMP notes on the loop_notes list.

        * mn10300.h (RTX_COSTS): Handle UDIV and UMOD too.

Wed Aug 26 16:35:37 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * loop.c (check_dbra_loop): Add some code that would allow reversal
        of some loops without a known constant loop end if it were enabled.

Wed Aug 26 11:08:44 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * mips.md (lshrsi3_internal2+2): Fix type-o.

Wed Aug 26 10:53:03 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * system.h: Include stdarg.h/varargs.h, make sure they are ordered
        correctly with regards to stdio.h.
        
        * calls.c: Remove stdarg.h/varargs.h.
        * cccp.c: Likewise.
        * cexp.y: Likewise.
        * combine.c: Likewise.
        * cpperror.c: Likewise.
        * cpplib.c: Likewise.
        * cpplib.h: Likewise.
        * doprint.c: Likewise.
        * emit-rtl.c: Likewise.
        * final.c: Likewise.
        * fix-header.c: Likewise.
        * gcc.c: Likewise.
        * genattr.c: Likewise.
        * genattrtab.c: Likewise.
        * gencodes.c: Likewise.
        * genconfig.c: Likewise.
        * genemit.c: Likewise.
        * genextract.c: Likewise.
        * genflags.c: Likewise.
        * genopinit.c: Likewise.
        * genoutput.c: Likewise.
        * genpeep.c: Likewise.
        * genrecog.c: Likewise.
        * mips-tfile.c: Likewise.
        * prefix.c: Likewise.
        * protoize.c: Likewise.
        * regmove.c: Likewise.
        * toplev.c: Likewise.
        * tree.c: Likewise.

Wed Aug 26 05:09:27 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.c (sparc_override_options): If not
        TARGET_FPU, turn off TARGET_VIS.
        * config/sparc/sparc.h (TARGET_SWITCHES): Add no-vis.
        (LEGITIMATE_CONSTANT_P): Allow SF/DF mode zero when TARGET_VIS.
        * config/sparc/sparc.md (movsi_insn): Use fzeros not fzero.
        (movdi_insn_sp64): Add VIS fzero alternative.
        (clear_sf, clear_df): New VIS patterns.
        (movsf, movdf expanders): Allow fp_zero_operand flat out when
        TARGET_VIS.
        (one_cmpldi2_sp64): Provide new fnot1 VIS alternative.
        
Tue Aug 25 10:57:41 1998  Mark Mitchell  <mark@markmitchell.com>

        * loop.c (n_times_set, n_times_used, may_not_optimize,
        reg_single_usage): Convert to varrays.  All uses changed.
        (insert_loop_mem): Return a value.
        (scan_loop): Tweak AVOID_CC_MODE_COPIES code.
        (load_mems_and_recount_loop_regs_set): Likewise.  Grow the arrays, if
        necessary.

Tue Aug 25 23:57:12 1998  Jeffrey A Law  (law@cygnus.com)

        * From Alexandre:
        * configure.in: Do not set thread_file to "irix" since no such
        support exists yet.

        * sparc.md (float abs/neg splits): Check reload_completed before
        calling alter_subreg.

Tue Aug 25 19:17:59 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_absnegfloat_split_legitimate): New
        function.
        * config/sparc/sparc.h: Declare it.
        * config/sparc/sparc.md (float abs/neg splits): Use it.
        (all other splits): Handle SUBREGs properly where necessary.
        (unnamed (1<<x)-1 V8PLUS pattern): Disable for now.

Tue Aug 25 19:48:46 1998  Jeffrey A Law  (law@cygnus.com)

        * reorg.c (fill_simple_delay_slots): Do not abort if we encounter
        an insn on the unfilled_slots_list that has no delay slots.
        (fill_eager_delay_slots): Similarly.

Tue Aug 25 13:35:20 1998  Nick Clifton  <nickc@cygnus.com>

        * config/v850/v850.c (movsi_source_operand): Treat CONSTANT_P_RTX
        as an ordinary operand.

Tue Aug 25 12:54:57 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.c (valid_machine_attribute): Don't apply attributes to both
        decl and type.

Tue Aug 25 12:23:20 PDT 1998  Richard Henderson  <rth@cygnus.com>

        * reload.c (operands_match_p): Handle rtvecs.

        * i386.c (legitimate_pic_address_disp_p): New.
        (legitimate_address_p): Use it.
        (legitimize_pic_address): Use unspecs to represent @GOT and @GOTOFF.
        Handle constant pool symbols just like statics.
        (emit_pic_move): Use Pmode not SImode for clarity.
        (output_pic_addr_const) [SYMBOL_REF]: Remove @GOT and @GOTOFF hacks.
        [UNSPEC]: New, handling what we killed above.
        [PLUS]: Detect and abort on invalid symbol arithmetic.
        * i386.h (CONSTANT_ADDRESS_P): Remove HIGH.

Tue Aug 25 12:02:23 1998  Mark Mitchell  <mark@markmitchell.com>

        * alias.c: Include output.h.
        (DIFFERENT_ALIAS_SETS_P): Don't treat alias sets as
        different if we're in a varargs function.
        * Makefile.in (alias.o): Depend on output.h
        
Tue Aug 25 19:20:12 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh.h (GIV_SORT_CRITERION): Delete.

Tue Aug 25 13:19:46 1998  Dave Brolley  <brolley@cygnus.com>

        * regclass.c (regclass): Use xmalloc/free instead of alloca.
        * stupid.c (stupid_life_analysis): Ditto.
        * reload1.c (reload): Ditto.

Tue Aug 25 05:48:18 1998  Jakub Jelinek  <jj@sunsite.ms.mff.cuni.cz>

        * config/sparc/sparc.c (arith_4096_operand, arith_add_operand,
        arith_double_4096_operand, arith_double_add_operand): New
        predicates.
        * config/sparc/sparc.h (PREDICATE_CODES): Add them, declare them.
        * config/sparc/sparc.md (adddi3, addsi3, subdi3, subsi3): Use
        them to transform add/sub 4096 into add/sub -4096.

Mon Aug 24 23:31:03 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * loop.c (scan_loop): Allocate some slop to handle pseudos
        generated by move_movables.
        (load_mems_and_recount_loop_regs_set): Honor AVOID_CC_MODE_COPIES
        here too.

Mon Aug 24 19:45:40 1998  Jim Wilson  <wilson@cygnus.com>

        * tree.def (DECL_RESULT): Correct documentation.

Tue Aug 25 01:15:27 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * reload1.c (reload_reg_free_before_p): New argument EQUIV;  Changed
        all callers.  Abort for RELOAD_FOR_INSN.  RELOAD_FOR_OUTADDR_ADDR:
        conflicts will all RELOAD_FOR_OUTPUT reloads.

        * reload1.c (reload_cse_regs_1): When deleting a no-op move that
        loads the function result, substitute with a USE.

Mon Aug 24 15:20:19 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Use TARGET_POWERPC64
        when testing LEGITIMATE_INDEXED_ADDRESS_P DFmode and DImode.
        (LEGITIMIZE_ADDRESS): Use TARGET_POWERPC64 for INDEXED fixup.
        * rs6000.c (print_operand, case 'L'): Add UNITS_PER_WORD, not 4.
        (print_operand, cases 'O' and 'T'): Fix typos in lossage strings.
        * rs6000.md (fix_truncdfsi2_store): Remove %w from non-CONST_INT
        operand. 
        (movdf_softfloat32, movdf_hardfloat64, movdf_softfloat64): Change
        'o' to 'm' for GPR variant constraints.

Mon Aug 24 10:25:46 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (scan_loop): Honor AVOID_CC_MODE_COPIES.

        * h8300.h (STRIP_NAME_ENCODING): Fix typo.

        * sparc.md (TFmode splits): Use reg_overlap_mentioned_p to detect
        when the source and destination overlap.

        * stmt.c (emit_case_nodes): Change rtx_function to rtx_fn to avoid
        clash with global type.

Mon Aug 24 00:53:53 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * fixinc.irix: Add curses.h handling from fixinc.wrap.

        * c-common.c (combine_strings): Also set TREE_READONLY.
        Change warn_write_strings to flag_const_strings.
        * c-decl.c, c-tree.h: Likewise.

Sun Aug 23 18:39:11 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const32): If outputting a
        CONST_INT, not a symbolic reference, don't use a HIGH/LO_SUM
        sequence, use SET/IOR instead so CSE can see it.
        * config/sparc/sparc.md (movhi_const64_special,
        movsi_const64_special): New patterns necessitated by that change.
        (movhi_high): Remove.
        (movhi_lo_sum): Change to match an IOR.
        (movdf_insn_sp32): Test TARGET_V9 not TARGET_ARCH64.
        (movdf_insn_v9only): New pattern for when V9 but not ARCH64.
        (movdf_insn_sp64): Test both TARGET_V9 and TARGET_ARCH64.
        (movdf splits): Allow when not V9 or when not ARCH64 and integer
        registers are involved.
        (snesi_zero_extend split): Remove reload_completed test.
        (unnamed plus and minus zero_extend sidi splits): Add it.

Sun Aug 23 11:56:08 1998  Mark Mitchell  <mark@markmitchell.com>

        * extend.texi: Remove description of extension to explicit
        instantiation that is now endorsed by standard C++.

Sun Aug 23 09:39:09 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/arc/arc.c (arc_initialize_pic): Remove.
        * config/arc/arc.h (INITIALIZE_PIC): Similarly, this routine does
        nothing on any platform and is invoked by no-one, it does not even
        appear in the documentation.
        * config/sparc/sparc.h (INITIALIZE_PIC): Likewise.
        * config/sparc/sparc.c (initialize_pic): Likewise.
        (find_addr_reg): Remove this as well, no longer referenced after
        my rewrite.

Sun Aug 23 00:17:14 1998  Jeffrey A Law  (law@cygnus.com)

        * recog.c (validate_replace_rtx_group): New function.
        * recog.h (validate_replace_rtx_group): Declare it.
        * regmove.c (optimize_reg_copy_3): If any substitution fails, then undo
        the entire group of substitutions.

Sat Aug 22 23:31:00 1998  Klaus-Georg Adams  (Klaus-Georg.Adams@chemie.uni-karlsruhe.de)

        * loop.c (load_mems): Fix initializers.

Fri Aug 21 23:07:46 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (TFmode splits): Handle destination
        registers being referenced in the address correctly.

        * expmed.c (make_tree) [CONST_INT]: Sign extend even if
        TREE_UNSIGNED, when bitsize of type's mode is larger than
        HOST_BITS_PER_WIDE_INT.

Fri Aug 21 19:31:31 1998  Alexandre Petit-Bianco <apbianco@cygnus.com>

        * tree.def (LABELED_BLOCK_EXPR, EXIT_BLOCK_EXPR): New tree nodes.
        * tree.h (LABELED_BLOCK_LABEL, LABELED_BLOCK_BODY,
        EXIT_BLOCK_LABELED_BLOCK, EXIT_BLOCK_RETURN, LOOP_EXPR_BODY): New
        macros.
        * expr.c (expand_expr): Handle LABELED_BLOCK_EXPR and
        EXIT_BLOCK_EXPR.

Thu Aug 20 19:43:44 1998  Jeffrey A Law  (law@cygnus.com)

        * h8300.c (h8300_encode_label): Use '&' for tiny data items.
        * h8300.h (TINY_DATA_NAME_P): Likewise.
        (STRIP_NAME_ENCODING): Handle '&'.

        * mn10200.h (REG_OK_FOR_INDEX_P): Do not check the mode of the
        register (it could be accessed via an outer SUBREG).
        (REG_OK_FOR_BASE_P): Likewwise.
        (GO_IF_LEGITIMATE_ADDRESS): Consistently use REGNO_OK_FOR_BASE_P.

        * remove.c (optimize_reg_copy_3): Abort instead of silently generating
        bogus rtl.

        * jump.c (rtx_renumbered_equal_p): Do not consider PLUS commutative.

Thu Aug 20 17:35:20 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movtf_insn_sp32): All memory operands
        must be offsettable so the splits can be made.

Thu Aug 20 13:56:53 1998  Michael Meissner  <meissner@cygnus.com>

        * config/i386/winnt.c: Include system.h, not stdio.h to get
        sys/param.h pulled in before rtl.h in case the system defines MIN
        and MAX.

Thu Aug 20 13:44:20 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.md (movqi, movhi): Add CONSTANT_P_RTX.

Thu Aug 20 13:15:11 1998  Dave Brolley  <brolley@cygnus.com>

        * stor-layout.c (layout_type): Compute TYPE_SIZE_UNIT correctly for
        arrays of bits.
        * cpplib.c (cpp_define): Handle macros with parameters.

Wed Aug 19 21:33:19 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (rs6000_output_load_toc_table): Use ld for 64-bit.
        (output_toc): Use single TOC slot or llong minimal-toc for DFmode
        and DImode 64-bit.  Use llong for minimal-toc SFmode and
        SYMBOL_REF / LABEL_REF 64-bit.
        (output_function_profiler): Use llong for profiler label and ld to
        load 64-bit label address.

Wed Aug 19 17:52:27 1998  Nick Clifton  (nickc@cygnus.com)

        * config/arm/thumb.md (extendqisi2_insn): Cope with REG +
        OFFSET addressing.

Wed Aug 19 14:13:31 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Wed Aug 19 13:10:30 PDT 1998 Jeff Law  (law@cygnus.com)

        * version.c: Bump for snapshot.

Wed Aug 19 13:06:47 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * collect2.c (extract_init_priority): Use atoi instead of strtoul.

Wed Aug 19 13:51:35 1998  Hans-Peter Nilsson  <hp@axis.se>

        * tm.texi (Misc): Fix typo "teh".

        * tm.texi (PIC): Fix typo "PPIC".

        * tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
        effect when -O2 and higher.
        * invoke.texi (Optimize Options): Likewise for -fcaller-saves.

1998-08-19  Michael Hayes  <michaelh@ongaonga.chch.cri.nz>

        * regclass.c: Changed register set documentation to be consistent
        with GCC behaviour.

        * final.c (final_start_function) Removed redundant test for
        call_fixed_regs.

Wed Aug 19 13:28:41 1998  Mark Mitchell  <mark@markmitchell.com>

        * rtl.h (rtx_function): New type.
        (for_each_rtx): New function.
        * rtlanal.c (for_each_rtx): Define it.
        
        * recog.c (change_t): New type.
        (change_objects, change_old_codes, change_locs, change_olds):
        Replace with ...
        (changes): New variable.
        (validate_change): Dynamically allocate room for more changes, if
        necessary.  Uses changes array instead of change_objects, etc.
        (apply_change_group):  Use changes array instead of
        change_objects, etc.
        
        * loop.c (loop_mem_info): New type.
        (loop_mems): New variable.
        (loop_mems_idx): Likewise.
        (looop_mems_allocated): Likewise.
        (scan_loop): Remove nregs parameter.
        (next_insn_in_loop): New function.
        (load_mems_and_recount_loop_regs_set): Likewise.
        (load_mems): Likewise.
        (insert_loop_mem): Likewise.
        (replace_loop_mem): Likewise.
        (replace_label): Likewise.
        (INSN_IN_RANGE_P): New macro.
        (loop_optimize): Don't pass max_reg_num() to scan_loop.
        (scan_loop): Remove nregs parameter, compute it after any new
        registers are created by load_mems.  Use INSN_IN_RANGE_P and
        next_insn_in_loop rather than expanding them inline.  Call
        load_mems to load memory into pseudos, if appropriate.
        (prescan_loop): Figure out whether or not there are jumps from the
        loop to targets other than the label immediately following the
        loop.  Call insert_loop_mem to notice all the MEMs used in the
        loop, if it could be safe to pull MEMs into REGs for the duration
        of the loop.
        (strength_reduce): Use next_insn_in_loop.  Tweak comments.

Wed Aug 19 08:29:44 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm.c (arm_override_options): Remove lie about ignoring PIC flag.

Wed Aug 19 07:08:15 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (finalize_pic): Check for the correct
        nonlocal_goto_receiver UNSPEC number.
        * config/sparc/sparc.md (nonlocal_goto_receiver): Add comment
        making note of this dependency existing in sparc.c
        (negtf2_notv9 split): Give NEG SFmode.
        (negsf2): Fix insn output string.
        
Tue Aug 18 12:40:27 1998  Richard Henderson  <rth@cygnus.com>

        * c-common.c (decl_attributes): Issue an error if the argument
        to alias is not a string.

Tue Aug 18 10:33:30 1998  Jeffrey A Law  (law@cygnus.com)

        * haifa-sched.c (sched_analyze): Put all JUMP_INSNs on the last
        pending memory flush list.

        * combine.c (can_combine_p): Allow combining insns with REG_RETVAL
        notes.
        (try_combine): Allow combining insns with REG_LIBCALL notes.

        * expr.c (emit_block_move): Do not call memcpy as a libcall
        instead build up a CALL_EXPR and call it like any other
        function.
        (clear_storage): Similarly for memset.

        * regmove.c (fixup_match_2): Do not call reg_overlap_mentioned_p
        on notes.

        * Makefile.in (cplus-dem.o): Provide explicit rules for building
        cplus-dem.o

        * regmove.c (optimize_reg_copy_1): Update REG_N_CALLS_CROSSED
        and REG_LIVE_LENGTH as successful substitutions are made.

Tue Aug 18 07:15:27 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/sparc/sparc.c (ultra_find_type): Add empty semicolon
        statement after end of loop label.

Tue Aug 18 07:13:27 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (ultra_types_avail): New variable.
        (ultra_build_types_avail): New function to record mask of insn
        types in ready list at this cycle.
        (ultrasparc_sched_reorder): Call it.
        (ultra_find_type): Use it to quicken the search.  Also simplif
        dependency check, don't use rtx_equal_p because we know exactly
        what we are looking for.

Tue Aug 18 03:20:53 1998  Richard Earnshaw  (rearnsha@arm.com)

        * arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
        for architecture v4.

Mon Aug 17 21:26:38 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call
        gen_compare_reg.
        (movsf_const_intreg, movsf_const_high, movsf_const_lo,
        movdf_const_intreg and helper splits): New patterns to move float
        constants into integer registers.
        (negtf2, negdf2, abstf2, absdf2): Rework using new patterns and
        splits.

Mon Aug 17 11:46:19 1998  Jeffrey A Law  (law@cygnus.com)

        * From Graham
        * tree.c (build_index_type): Copy TYPE_SIZE_UNIT from sizetype
        to itype.
        * c-decl.c (finish_enum): Copy TYPE_SIZ_UNIT from enumtype to tem.

        * rs6000.c (secondary_reload_class): For TARGET_ELF, indicate that
        a BASE_REGS register is needed as an intermediate when copying
        a symbolic value into any register class other than BASE_REGS.

        * expr.c (move_by_pieces): No longer static.  Remove prototype.
        * rtl.h (move_by_pieces): Add extern prototype.
        * mips.c (expand_block_move): Handle aligned straight line copy by
        calling move_by_pieces.

        * expr.c (expand_expr): Allow assignments from TImode PARM_DECLs
        and VAR_DECLs.

Mon Aug 17 10:28:52 1998  Mark Mitchell  <mark@markmitchell.com>

        * stmt.c (expand_end_loop): Tidy.  Allow unconditional
        jumps out of the loop to be treated as part of the exit test.

Mon Aug 17 10:06:11 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
                          Jeff Law <law@cygnus.com>

        * Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
        * cplus-dem.c: Delete.

        * Makefile.in (fold-const.o): depend on $(RTL_H).

        * fold-const.c: Include rtl.h to get the prototype for
        `set_identifier_local_value'.

        * loop.c (express_from_1): Remove unused variable `tmp'.
        (combine_givs): cast the first argument of bzero to char *.

        * toplev.c (display_help): Remove unused variable `looking_for_start'.

        * c-decl.c (init_decl_processing): Remove unneeded &.

        * alpha.h (alpha_initialize_trampoline): Provide prototype.
        
        * except.c (set_exception_lang_code, set_exception_version_code):
        Change parameter from `short' to `int' to avoid using a gcc
        extension.

        * except.h (set_exception_lang_code, set_exception_version_code):
        Likewise for prototypes.

        * flow.c (count_reg_references): Remove unused variables `regno'
        and `i'.

        * gcse.c (hash_scan_insn): Declare parameter `in_libcall_block'.

        * prefix.c (translate_name): Cast the result of `alloca'.

        * varray.h (VARRAY_FREE): Reimplement as a `do-while(0)' statement.

Mon Aug 17 09:23:42 1998  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

        * config/m68k/m68k.c: Include "system.h" instead of <stdio.h>.
        Include "toplev.h".
        (valid_dbcc_comparison_p): Mark mode argument as unused.
        (symbolic_operand): Likewise.
        (legitimize_pic_address): Likewise.
        (const_uint32_operand): Likewise.
        (const_sint32_operand): Likewise.
        * sched.c [!INSN_SCHEDULING]: Define only dummy function
        schedule_insns and comment out rest of file.

        * m68k.c (output_move_simode_const): Use subl to move a zero into an
        address register.
        (output_move_[hq]imode): Likewise.

Mon Aug 17 09:15:47 1998  Jeffrey A Law  (law@cygnus.com)

        * toplev.c (main): Enable -fstrict-aliasing for -O2 and above.
        * invoke.texi: Corresponding changes.

Mon Aug 17 02:03:55 1998  Richard Henderson  <rth@cygnus.com>

        * regclass.c (allocate_reg_info): Respect MIN when clearing data.

Sun Aug 16 17:37:06 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (ultra_code_from_mask,
        ultra_cmove_results_ready_p, ultra_fpmode_conflict_exists,
        ultra_find_type, ultra_schedule_insn, ultra_flush_pipeline,
        ultrasparc_sched_init, ultrasparc_variable_issue,
        ultra_rescan_pipeline_state, ultrasparc_sched_reorder): New
        functions to describe UltraSPARC pipeline exactly to Haifa.
        (ultrasparc_adjust_cost): Indicate IMUL type insns have zero cost,
        as there is nothing the scheduler can do about it.  Indicate that
        REG_DEP_OUTPUT's collide.  Fixup formatting.
        * config/sparc/sparc.h (RTX_COSTS): Fixup integer multiply and
        divide costs on Ultra for DImode.
        (MD_SCHED_INIT, MD_SCHED_REORDER, MD_SCHED_VARIABLE_ISSUE):
        Define.
        * config/sparc/sparc.md (ieu_unnamed function unit): Rename to
        ieuN and add call_no_delay_slot to type list.
        (cti function unit): New unit for branches on UltraSPARC.
        (subx/addx insns): Set type to misc.
        (sidi zero/sign extension insns on arch64): Set type to shift.
        (sign_extendhidi2_insn): Set type to sload.

Sun Aug 16 13:52:00 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.c (rs6000_stack_info): Use if == 0 for sizes.
        (output_epilog): Use if != 0 for offset.
        (rs6000_fatal_bad_address): Prepare for Intl.
        * rs6000.h (rs6000_fatal_bad_address): Declare.
        * rs6000.md (movsfcc, movdfcc): Use else if.
        (elf_high): Use {liu|lis}.
        (elf_low): Use {cal|la}.  Remove %a template from old mnemonics.
        (movsi): Use rs6000_fatal_bad_address.
        
Sun Aug 16 01:53:21 1998  Richard Henderson  <rth@cygnus.com>

        * reload.c (find_equiv_reg): Reject equivalences separated
        by a volatile instruction.

Sun Aug 16 00:21:44 1998 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> 

        * rs6000/linux.h (CPP_OS_DEFAULT_SPEC): Define.

Sat Aug 15 20:51:35 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (movsicc): Fix mode mismatch.

Sat Aug 15 20:22:33 1998  H.J. Lu  (hjl@gnu.org)

        * config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Handle aggregated
        return type.
        * config/alpha/win-nt.h (ASM_OUTPUT_MI_THUNK): Likewise.

Sat Aug 15 08:39:49 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (movsi_lo_sum_pic_label_reg): Remove
        write-only modifier from operand 1 constraint.

Sat Aug 15 06:28:19 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const64_quick1): If
        emitting a XOR of -1 at the end, emit a NOT instead for combine's
        sake.
        (sparc_emit_set_const64): Likewise, also when computing trailing
        bits do not negate low_bits and make fast_int an int.

Fri Aug 14 21:07:03 1998  Jeffrey A Law  (law@cygnus.com)

        * loop.c (add_label_notes): Do not ignore references to labels
        before dispatch tables.  Mirrors Apr 8 change to mark_jump_label.
        * gcse.c (add_label_notes): Similarly.

        * pa.h (ASM_OUTPUT_MI_THUNK): Strip name encoding.

        * m68k.md (adddi_dilshr32): One of the operands must be a register.
        (adddi_dishl32): Similarly.

Fri Aug 14 14:12:59 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * i386.h (MODES_TIEABLE_P): Reorganize to shut up warnings.
        * alias.c (memrefs_conflict_p): Add braces to shut up warnings.
        * cse.c (cse_basic_block): Add parens to shut up warnings.

Fri Aug 14 12:58:21 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const64_quick2,
        sparc_emit_set_const64_longway, const64_is_2insns,
        create_simple_focus_bits, sparc_emit_set_const64): Fix more bugs
        in 64-bit constant formation.
        * config/sparc/sparc.md (snesi_zero_extend split): Generate
        rtl for addx not subx.
        (define_insn movdi_const64_special): Make available even when
        HOST_BITS_PER_WIDE_INT is not 64.
        (movdi_lo_sum_sp64_cint, movdi_high_sp64_cint): Remove.
        (losum_di_medlow, sethm, setlo): Make op2 symbolic_operand.
        (cmp_siqi_trunc_set, cmp_diqi_trunc_set): Encapsulate both
        instances of operand 1 inside a QI subreg.
        (xordi3_sp64_dbl): Remove '%' constraint for op1.
        (one_cmpldi2_sp64): Fix output string.
        (one_cmplsi2_not_liveg0): Rewrite to remove unneeded extra
        alternative case.
        (unnamed arch64 ashift DI): Truncate shift count if greater than
        63, not 31.

Fri Aug 14 21:52:53 1998  J"orn Rennecke <amylaar@cygnus.co.uk>

        * expr.c (store_expr): Don't optimize away load-store pair
        when either source or destination have a side effect.

Fri Aug 14 16:50:10 1998  John Carr  <jfc@mit.edu>

        * genrecog.c (add_to_sequence): Fatal error if the modes of the
        operands of SET are incompatible.

        * alpha.md: Fix max and min patterns so modes of SET operands match.

Fri Aug 14 12:22:55 1998  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Avoid [[ by using test and changequote.
        * configure: Rebuild.

Fri Aug 14 01:22:31 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * rtl.def (CONSTANT_P_RTX): Fix typo in string name.

        * config/sparc/sparc.md (seqdi_special_trunc, snedi_special_trunc,
        seqsi_special_extend, snesi_special_extend, snesi_zero_extend and
        split, snedi_zero_trunc and split, seqsi_zero_extend and split,
        seqdi_zero_trunc and split, pic_lo_sum_di, pic_sethi_di,
        movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc, addx_extend_sp32 and
        split, addx_extend_sp64, subx_extend_sp64, subx_extend and split):
        Fix mismatching modes in SET operands.
        (conditional move patterns): Fix formatting.
        (unnamed subx arch64 pattern): Remove duplicate insn.
        
Fri Aug 14 00:34:34 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (const64_operand, const64_high_operand):
        Get it right when HOST_BITS_PER_WIDE_INT is not 64.
        (input_operand): Fixup test for what we accept for constant
        integers.
        (sparc_emit_set_const32, sparc_emit_set_symbolic_const64): Give
        set VOIDmode.
        (safe_constDI): Remove.
        (sparc_emit_set_safe_HIGH64, gen_safe_SET64, gen_safe_OR64,
        gen_safe_XOR64): New functions.
        (sparc_emit_set_const64_quick1, sparc_emit_set_const64_quick2,
        sparc_emit_set_const64_longway, sparc_emit_set_const64): Use
        them.
        * config/sparc/sparc.md (define_insn xordi3_sp64_dbl): Only make
        available when HOST_BITS_PER_WIDE_INT is not 64.
        (define_insn movdi_sp64_dbl, movdi_const64_special): Likewise and
        move before movdi_insn_sp64 pattern.
        (define_insn movdi_lo_sum_sp64_dbl, movdi_high_sp64_dbl): Remove.
        (define_insn sethi_di_medlow, seth44, setm44, sethh): Use
        symbolic_operand as predicate for second operand.
        (DImode minus split on arch32, negsi2 expander, one_cmplsi2
        expander): Give set VOIDmode.
        
Fri Aug 14 01:45:06 1998  Mumit Khan  <khan@xraylith.wisc.edu>

        * i386/cygwin32 (DEFAULT_PCC_STRUCT_RETURN): Define.

Fri Aug 14 01:40:21 1998  Geoffrey Keating  <geoffk@ozemail.com.au>

        * rs6000/linux.h (LINK_SPEC): Pass -G args to the linker.

Fri Aug 14 01:23:23 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm/netbsd.h (TARGET_DEFAULT): Default includes software floating 
        point.
        (CPP_FLOAT_DEFAULT_SPEC): Re-define accordingly.

Fri Aug 14 01:19:08 1998  Robert Lipe  <robertl@dgii.com>

        * install.texi: Various SCO OpenServer tweaks.

Thu Aug 13 20:14:40 1998  Jim Wilson  <wilson@cygnus.com>

        * reload1.c (eliminate_regs_in_insn): Handle another case when
        eliminating the frame pointer to the hard frame pointer.  Add
        missing ep->to_rtx check to one existing case.

        * mips/mips.md (movhi_internal2+2): Fix typo mem:SI -> mem:HI.

Thu Aug 13 17:08:11 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.h: De-conditionalize init_priority code.

        * mips.h (NM_FLAGS): Change from -Bp to -Bn.
        * collect2.c (NM_FLAGS): Change from -p to -n.

        * configure.in: Turn on collect2 for mipstx39-elf.
        Handle use_collect2=no properly.

        * c-common.c: De-conditionalize init_priority code.
        * collect2.c (extract_init_priority, sort_ids): New fns.
        (main): Call sort_ids.
        Move sequence_number to file scope.

        * configure.in: Handle --enable-init-priority.
        * c-common.c (attrs): Add A_INIT_PRIORITY.
        (init_attributes, decl_attributes): Likewise.
        * tree.h (DEFAULT_INIT_PRIORITY, MAX_INIT_PRIORITY): New macros.
        * tree.c (get_file_function_name_long): Split out...
        (get_file_function_name): ...from here.

Thu Aug 13 16:09:53 1998  Martin von Loewis  <loewis@informatik.hu-berlin.de>

        * expr.c (safe_from_p): Change code to ERROR_MARK only when not
        accessing nodes.

Thu Aug 13 15:24:48 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * toplev.c (display_help): Add braces to shut up warnings.
        * tree.c (simple_cst_equal): Likewise.

        * fold-const.c (non_lvalue): Don't deal with null pointer 
        constants here.
        (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.

        * c-typeck.c (initializer_constant_valid_p): Allow conversion of 0
        of any size to a pointer.

Thu Aug 13 12:53:13 1998  Jim Wilson  <wilson@cygnus.com>

        * i386/winnt.c (i386_pe_asm_file_end): Check TREE_SYMBOL_REFERENCED.

Wed Aug 12 17:25:18 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.c (REG_SAVE_BYTES): Only reserve space for registers
        which will be saved.
        * mn10300.md (prologue insn): Only save registers which need saving.
        (epilogue insn): Similarly.

        * mn10300.c, mn10300.h, mn10300.md: Remove "global zero register"
        optimizations.

Wed Aug 12 12:39:16 1998  Gavin Romig-Koch  <gavin@cygnus.com>

        * mips/mips.h (ENCODE_SECTION_INFO): Set SYMBOL_REF_FLAG for
        VAR_DECL's in gp addressable sections.

Tue Aug 11 23:02:31 1998  John Carr  <jfc@mit.edu>

        * sparc.c: Change return <exp> to <exp>; return; in functions
        returning void.
        * sparc.md: Add empty semicolon statement after final label in
        move expanders.

Tue Aug 11 22:42:01 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.md (define_insn addx_extend): Rename to
        addx_extend_sp64, only allow when TARGET_ARCH64.
        (define_insn addx_extend_sp32 and split): Version that works when
        not TARGET_ARCH64.
        (define_insn subx_extend): Likewise.
        (define_split adddi3 and subdi3 with zero extension): Fixup and
        correct bugs when not TARGET_ARCH64.

Tue Aug 11 16:04:34 1998  John Carr  <jfc@mit.edu>

        * except.c (set_exception_lang_code, set_exception_version_code):
        Use prototype-style definition if __STDC__, to match declaration
        in except.h.

        * genemit.c: Change FAIL and DONE macros not to use loops.

Tue Aug 11 12:27:03 1998  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (ASM_OUTPUT_DWARF_ADDR_CONST): Use
        ASM_OUTPUT_DWARF2_ADDR_CONST if defined.

        * mips/mips.md (reload_outsi): Use M16_REG_P when TARGET_MIPS16.

Tue Aug 11 18:12:53 1998  Dave Love  <d.love@dl.ac.uk>

        * README.g77: Update from Craig.

Tue Aug 11 04:46:01 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (sparc_emit_set_const32): INTVAL is of
        type HOST_WIDE_INT.
        (safe_constDI sparc_emit_set_const64_quick1,
        sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
        analyze_64bit_constant, const64_is_2insns,
        create_simple_focus_bits): Fix some bugs when compiled on real
        64-bit hosts.
        (function_arg_record_value_3, function_arg_record_value_2,
        function_arg_record_value): Add fully prototyped forward decls.
        * config/sparc/sparc.md (define_insn cmpsi_insn_sp32): Rename back
        to cmpsi_insn and use on both 64 and 32 bit targets.
        (define_insn cmpsi_insn_sp64): Remove.
        (define_expand zero_extendsidi2): Allow for 32-bit target too.
        (define_insn zero_extendsidi2_insn): Rename to
        zero_extendsidi2_insn_sp64.
        (define_insn zero_extendsidi2_insn_sp32): New pattern and
        assosciated forced split for it.

        * config/sparc/sparc.c (const64_operand, const64_high_operand):
        New predicates.
        * config/sparc/sparc.h: Declare them.
        (PREDICATE_CODES): Add them.
        * config/sparc/sparc.md (movdi_lo_sum_sp64_dbl,
        movdi_high_sp64_dbl, xordi3_sp64_dbl): Use them.

Mon Aug 10 22:57:24 1998  John Carr  <jfc@mit.edu>

        * config/sparc/sparc.md (define_insn jump): Output ba,pt not b,pt
        in v9 case as the latter makes the Solaris assembler crash.

Mon Aug 10 22:39:09 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * config/sparc/sparc.c (input_operand): Do not accept a LO_SUM MEM
        for TFmode when !v9.  We require offsettable memory addresses.
        * config/sparc/sparc.h (ALTER_HARD_SUBREG): Handle TFmode to
        DFmode register number conversions.
        * config/sparc/sparc.md (define_split DFmode moves): If register
        is a SUBREG do alter_subreg on it before using.
        (define_expand movtf): Fixup comment about alignment on v9.
        (define_split TFmode moves): Don't use gen_{high,low}part, create
        explicit SUBREGs instead.

Mon Aug 10 19:02:55 1998  John Carr  <jfc@mit.edu>

        * Makefile.in (mbchar.o): Depend on mbchar.c.

Mon Aug 10 04:28:13 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>
                          Richard Henderson  <rth@cygnus.com>
        
        Rewrite Sparc backend for better code generation and
        improved sparc64 support.
        * config/sparc/sp64-elf.h: Set JUMP_TABLES_IN_TEXT_SECTION to
        zero.
        * config/sparc/sysv4.h: Likewise.
        * config/sparc/sparc.c (v8plus_regcmp_p, sparc_operand,
        move_operand, v8plus_regcmp_op, emit_move_sequence,
        singlemove_string, doublemove_string, mem_aligned_8,
        output_move_double, output_move_quad, output_fp_move_double,
        move_quad_direction, output_fp_move_quad, output_scc_insn):
        Remove.
        (small_int_or_double): New predicate.
        (gen_compare_reg): Remove TARGET_V8PLUS cmpdi_v8plus emission.
        (legitimize_pic_address): Emit movsi_{high,lo_sum}_pic instead of
        old pic_{sethi,lo_sum}_si patterns.
        (mem_min_alignment): New generic function to replace
        mem_aligned_8, which uses REGNO_POINTER_ALIGN information when
        available and can test for arbitrary alignments.  All callers
        changed.
        (save_regs, restore_regs, build_big_number,
        output_function_prologue, output_cbranch, output_return,
        sparc_flat_save_restore, sparc_flat_output_function_prologue,
        sparc_flat_output_function_epilogue): Prettify
        insn output.
        (output_function_epilogue): Likewise and add code to output
        deferred case vectors.
        (output_v9branch): Likewise, add new arg INSN and use it to tack
        on branch prediction settings.  All callers changed.
        (print_operand): Likewise and output %l44 for LO_SUMs when
        TARGET_CM_MEDMID.
        (sparc_splitdi_legitimate): New function to make sure DImode
        splits can be run properly when !arch64.
        (sparc_initialize_trampoline, sparc64_initialize_trampoline):
        Reformat example code in comments.
        (set_extends): Remove UNSPEC/v8plus_clear_high case.
        (sparc_addr_diff_list, sparc_addr_list): New statics to keep track
        of deferred case vectors we need to output.
        (sparc_defer_case_vector): Record a case vector.
        (sparc_output_addr_vec, sparc_output_addr_diff_vec,
        sparc_output_deferred_case_vectors): New functions to output them.
        (sparc_emit_set_const32): New function to form 32-bit constants in
        registers when that requires more than one instruction.
        (safe_constDI, sparc_emit_set_const64_quick1,
        sparc_emit_set_const64_quick2, sparc_emit_set_const64_longway,
        analyze_64bit_constant, const64_is_2insns,
        create_simple_focus_bits, sparc_emit_set_const64): New functions
        which do the same for 64-bit constants when arch64.
        (sparc_emit_set_symbolic_const64): New function to emit address
        loading for all code models on v9.
        * config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Do not make
        %g1 fixed when arch64, unfix %g0 when TARGET_LIVE_G0.
        (ALTER_HARD_SUBREG): Fix thinko, return REGNO + 1 not 1.
        (SECONDARY_INPUT_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS): Fix
        inaccuracies in comments, add symbolic and text_segment operands
        when TARGET_CM_MEDANY and TARGET_CM_EMBMEDANY respectively.  Use
        GENERAL_REGS in these cases as a temp REG is needed to load these
        addresses into a register properly.
        (EXTRA_CONSTRAINT): Document more accurately, remove Q case as it
        is no longer used.
        (GO_IF_LEGITIMATE_ADDRESS): Allow TFmode for LO_SUM on v9 since fp
        quads are guarenteed to have 16-byte alignment.
        (LEGITIMIZE_ADDRESS): For SYMBOL_REF, CONST, and LABEL_REF use
        copy_to_suggested_reg instead of explicit LO_SUM and HIGH.
        (ASM_OUTPUT_ADDR_VEC, ASM_OUTPUT_ADDR_DIFF_VEC): New macros for
        deferred case vector implementation.
        (ASM_OUTPUT_ADDR_VEC_ELT): Use fputc to output newline.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Parenthesize LABEL in macro calls.
        Generate "internal label - label" instead of "label - 1b".
        (PRINT_OPERAND_ADDRESS): For LO_SUM use %l44 on TARGET_CM_MEDMID.
        (PREDICATE_CODES): Remove sparc_operand, move_operand,
        v8plus_regcmp_op.  Add small_int_or_double, input_operand, and
        zero_operand.
        (doublemove_string, output_block_move, output_fp_move_double,
        output_fp_move_quad, output_move_double, output_move_quad,
        output_scc_insn, singlemove_string, mem_aligned_8, move_operand,
        sparc_operand, v8plus_regcmp_op, v8plus_regcmp_p): Remove externs.
        (sparc_emit_set_const32, sparc_emit_set_const64,
        sparc_emit_set_symbolic_const64, input_operand, zero_operand,
        mem_min_alignment, small_int_or_double): Add externs.
        * config/sparc/sparc.md: Document the many uses of UNSPEC and
        UNSPEC_VOLATILE in this backend.
        (define_function_unit ieu): Rename to ieu_unnamed.  Add move and
        unary to types which execute in it.
        (define_function_unit ieu_shift): Rename to ieu0.
        (define_function_unit ieu1): New, executes compare, call, and
        uncond_branch type insns.
        (define_function_units for type fdivs, fdivd, fsqrt): These
        execute in the fpu multiply unit not the adder on UltraSparc.
        (define_expand cmpdi): Disallow TARGET_V8PLUS.
        (define_insn cmpsi_insn): Rename to cmpsi_insn_sp32.
        (define_insn cmpsi_insn_sp64): New, same as sp32 variant except it
        allows the arith_double_operand predicate and rHI constraint when
        TARGET_ARCH64.
        (define_insn cmpdi_sp64, cmpsf_fpe, cmpdf_fpe, cmptf_fpe,
        cmpsf_fp, cmpdf_fp, cmptf_fp, sltu_insn, neg_sltu_insn,
        neg_sltu_minux_x, neg_sltu_plus_x, sgeu_insn, neg_sgeu_insn,
        sltu_plus_x, sltu_plus_x, sltu_plus_x_plus_y, x_minus_sltu,
        sgeu_plus_x, x_minus_sgeu, movqi_cc_sp64, movhi_cc_sp64,
        movsi_cc_sp64, movdi_cc_sp64, movsf_cc_sp64, movdf_cc_sp64,
        movtf_cc_sp64, movqi_cc_reg_sp64, movhi_cc_reg_sp64,
        movsi_cc_reg_sp64, movdi_cc_reg_sp64, movsf_cc_reg_sp64,
        movdf_cc_reg_sp64, movtf_cc_reg_sp64, zero_extendhisi2_insn,
        cmp_siqi_trunc, cmp_siqi_trunc_set, sign_extendhisi2_insn,
        sign_extendqihi2_insn, sign_extendqisi2_insn,
        sign_extendqidi2_insn, sign_extendhidi2_insn,
        extendsfdf2, extendsftf2, extenddftf2, truncdfsf2, trunctfsf2,
        trunctfdf2, floatsisf2, floatsidf2, floatsitf2, floatdisf2,
        floatdidf2, floatditf2, fix_truncsfsi2, fix_truncdfsi2,
        fix_trunctfsi2, fix_truncsfdi2, fix_truncdfdi2, fix_trunctfdi2,
        adddi3_sp64, addsi3, cmp_ccx_plus, cmp_cc_plus_set, subdi_sp64,
        subsi3, cmp_minus_ccx, cmp_minus_ccx_set, mulsi3, muldi3,
        muldi3_v8plus, cmp_mul_set, mulsidi3, mulsidi3_v8plus,
        const_mulsidi3_v8plus, mulsidi3_sp32, const_mulsidi3,
        smulsi3_highpart_v8plus, unnamed subreg mult,
        const_smulsi3_highpart_v8plus, smulsi3_highpart_sp32,
        const_smulsi3_highpart, umulsidi3_v8plus, umulsidi3_sp32,
        const_umulsidi3, const_umulsidi3_v8plus, umulsi3_highpart_v8plus,
        const_umulsi3_highpart_v8plus, umulsi3_highpart_sp32,
        const_umulsi3_highpart, divsi3, divdi3, cmp_sdiv_cc_set, udivsi3,
        udivdi3, cmp_udiv_cc_set, smacsi, smacdi, umacdi, anddi3_sp64,
        andsi3, and_not_di_sp64, and_not_si, iordi3_sp64, iorsi3,
        or_not_di_sp64, or_not_si, xordi3_sp64, xorsi3, xor_not_di_sp64,
        xor_not_si, cmp_cc_arith_op, cmp_ccx_arith_op,
        cmp_cc_arith_op_set, cmp_ccx_arith_op_set, cmp_ccx_xor_not,
        cmp_cc_xor_not_set, cmp_ccx_xor_not_set, cmp_cc_arith_op_not,
        cmp_ccx_arith_op_not, cmp_cc_arith_op_not_set,
        cmp_ccx_arith_op_not_set, negdi2_sp64, cmp_cc_neg, cmp_ccx_neg,
        cmp_cc_set_neg, cmp_ccx_set_neg, one_cmpldi2_sp64, cmp_cc_not,
        cmp_ccx_not, cmp_cc_set_not, cmp_ccx_set_not, addtf3, adddf3,
        addsf3, subtf3, subdf3, subsf3, multf3, muldf3, mulsf3,
        muldf3_extend, multf3_extend, divtf3, divdf3, divsf3, negtf2,
        negdf2, negsf2, abstf2, absdf2, abssf2, sqrttf2, sqrtdf2, sqrtsf2,
        ashlsi3, ashldi3, unnamed DI ashift, cmp_cc_ashift_1,
        cmp_cc_set_ashift_1, ashrsi3, ashrdi3, unnamed DI ashiftrt,
        ashrdi3_v8plus, lshrsi3, lshrdi3, unnamed DI lshiftrt,
        lshrdi3_v8plus, tablejump_sp32, tablejump_sp64, call_address_sp32,
        call_symbolic_sp32, call_address_sp64, call_symbolic_sp64,
        call_address_struct_value_sp32, call_symbolic_struct_value_sp32,
        call_address_untyped_struct_value_sp32,
        call_symbolic_untyped_struct_value_sp32, call_value_address_sp32,
        call_value_symbolic_sp32, call_value_address_sp64,
        call_value_symbolic_sp64, branch_sp32, branch_sp64,
        flush_register_windows, goto_handler_and_restore,
        goto_handler_and_restore_v9, goto_handler_and_restore_v9_sp64,
        flush, all ldd/std peepholes, return_qi, return_hi, return_si,
        return_addsi, return_di, return_adddi, return_sf, all call+jump
        peepholes, trap, unnamed trap insns): Prettify output strings.
        (define_insn anddi3_sp32, and_not_di_sp32, iordi3_sp32,
        or_not_di_sp32, xordi3_sp32, xor_not_di_sp32, one_cmpldi2):
        Likewise and force + implement splits for integer cases.
        (define_insn return_sf_no_fpu): Likewise and allow to match when
        no-fpu because of our subreg SFmode splits.
        (define_insn zero_extendqihi2, zero_extendqisi2_insn,
        zero_extendqidi2_insn, zero_extendhidi2_insn,
        zero_extendsidi2_insn, sign_extendsidi2_insn): Likewise and use
        input_operand for second operand.
        (cmp_minus_cc, cmp_minus_cc_set): Likewise and use
        reg_or_0_operand for operand 2 so new splits can use it.
        (cmp_zero_extendqisi2, cmp_zero_extendqisi2_set, cmp_cc_plus,
        cmp_cc_xor_not): Likewise and don't forget to check TARGET_LIVE_G0
        too.
        (cmp_zero_extract, cmp_zero_extract_sp64): Likewise and allow
        CONST_DOUBLEs for operand 2.
        (define_insn move_label_di): Likewise and label distance
        optimization because it no longer works with new deferred case
        vector scheme.  To be revisited.
        (define_insn x_minus_y_minus_sltu, x_minus_sltu_plus_y): Likewise
        and allow reg_or_0_operand and J constraint for second operand.
        (define_insn jump): Set branch predict taken on V9.
        (define_insn tablejump): Emit LABEL_REF + PLUS memory address for
        new deferred case vector scheme.
        (define_insn pic_tablejump_32, pic_tablejump_64): Remove.
        (define_insn negdi2_sp32): Force + implement splits.
        (define_insn negsi2, one_cmplsi2): Rename to negsi2_not_liveg0 and
        one_cmplsi2_not_liveg0 respectively, and create expander of original
        names which emit special rtl for TARGET_LIVE_G0.
        (define_insn cmpdi_v8plus, scc_si, scc_di): Remove.
        (define_insn seq, sne, slt, sge, sle, sltu, sgeu): Don't do
        gen_compare_reg, FAIL instead.
        (define_insn sgtu, sleu): Likewise and check gen_s*() return
        values when trying to reverse condition codes, if they FAIL then
        do likewise.
        (define_insn snesi_zero, neg_snesi_zero, snesi_zero_extend,
        snedi_zero, neg_snedi_zero, snedi_zero_trunc, seqsi_zero,
        neg_seqsi_zero, seqsi_zero_extend, seqdi_zero, neg_seqdi_zero,
        seqdi_zero_trunc, x_plus_i_ne_0, x_minus_i_ne_0, x_plus_i_eq_0,
        x_minus_i_eq_0): Add new splits to perform these multi-insn cases,
        set output string to # to indicate they are mandatory splits.
        (define_insn pic_lo_sum_si, pic_sethi_si, pic_lo_sum_di,
        pic_sethi_di, move_pic_label_si): Remove.
        (define_insn movsi_low_sum, movsi_high, movsi_lo_sum_pic,
        movsi_high_pic, movsi_pic_label_reg): New patterns to take their
        place.
        (define_expand movsi_pic_label_ref, define_insn
        movsi_high_pic_label_ref, movsi_lo_sum_pic_label_ref): New
        expander and insns to handle PIC label references and deferred
        case vectors.
        (define_insn get_pc_via_rdpc): Comment out as it is no longer
        used.
        (define_expand movqi, movhi, movsi, movdi, movsf, movdf, movtf):
        Rewrite to not use emit_move_sequence, make use of new constant
        formation code, and new splits for all multi-insn cases.
        (define_insn movqi_insn): Remove sethi case, it can never happen.
        Use reg_or_zero_operand instead of const0_rtx explicit test,
        use input_operand instead of move_operand for source, and use
        general_operand now for dest.
        (define_insn movhi_insn): Similar but leave sethi case.
        (define_insn lo_sum_qi, store_qi, store_hi): Remove.
        (define_insn sethi_hi lo_sum_hi): Rename to movhi_high and
        movhi_lo_sum respectively, prettify output string.
        (define_insn movsi_zero_liveg0): New pattern to put zero into a
        register when needed on TARGET_LIVE_G0.
        (define_insn movsi_insn): Use general_operand and input_operand
        for dest and src respectively.  Simplify applicability test.
        Prettify output strings, and add clr alternative for J
        constraint.
        (define_insn movdi_sp32_v9, movdi_sp32, define_splits for
        deprecated std and reg-reg DI moves): Remove and...
        (define_insn movdi_insn_sp32, movdi_insn_sp64): Replace with new
        implementation which uses forced splits for all non-single insn
        cases.
        (define_split DI move cases on !arch64): New splits to handle all
        situations of 64-bit double register DImode on 32bit, and
        unaligned registers and memory addresses for all subtargets.
        (define_insn movsf_const_insn, movdf_const_insn, store_sf):
        Remove.
        (define_insn movsf_insn, movsf_no_f_insn): Use general_operand and
        input_operand for dest and src respectively, prettify output
        strings.
        (define_insn movdf_insn, movdf_no_e_insn, store_df,
        movtf_const_insn, movtf_insn, movtf_no_e_insn, store_tf): Remove
        and...
        (define_insn movdf_insn_sp32, movdf_no_e_insn_sp32,
        movdf_insn_sp64, movdf_no_e_insn_sp64, movtf_insn,
        movtf_no_e_insn_sp32, movtf_insn_hq_sp64, movtf_insn_sp64,
        movtf_no_e_insn_sp64) Replace with new
        implementation which uses forced splits for all non-single insn
        cases.
        (define_split DF move cases): New splits in similar vein to DI
        move counterparts.
        (define_insn sethi_di_medlow, sethi_di_medium_pic,
        sethi_di_embmedany_data, sethi_di_embmedany_text, sethi_di_sp64,
        movdi_sp64_insn): Remove old v9 code model and constant loading
        support insns and..
        (define_insn pic_lo_sum_di, pic_sethi_di,
        sethi_di_medlow_embmedany_pic, sethi_di_medlow, losum_di_medlow,
        seth44, setm44, setl44, sethh, setlm, sethm, setlo,
        embmedany_sethi, embmedany_losum, embmedany_brsum,
        embmedany_textuhi, embmedany_texthi, embmedany_textulo,
        embmedany_textlo, movdi_lo_sum_sp64_cint, movdi_lo_sum_sp64_dbl,
        movdi_high_sp64_cint, movdi_high_sp64_dbl): Replace with new
        scheme, using unspecs, secondary reloads, and one to one sparc
        insn to rtl insn mapping for better scheduling and code gen.
        (define_expand reload_indi, reload_outdi): Reload helpers for
        MEDANY and EMBMEDANY symbol address loading cases which require a
        temporary register.
        (define_expand movsicc): Remove v8plus_regcmp cases.
        (define_insn movdi_cc_sp64_trunc, movdi_cc_reg_sp64_trunc,
        cmp_zero_extendqidi2, cmp_zero_extendqidi2_set, cmp_qidi_trunc,
        cmp_diqi_trunc_set): New patterns used by some of the new scc
        splits on arch64.
        (define_insn xordi3_sp64_dbl): New pattern used for constant
        formation when crossing from 32-bit targets.
        (define_insn movsi_cc_reg_v8plus, v8plus_clear_high, and helper
        split): Remove.
        (define_insn addx, subx): Make visible and prettify.
        (define_insn adddi3_insn_sp32): Likewise and force split.
        (define_insn addx_extend, subx_extend, unnamed): New patterns for
        64bit scc split usage.
        (define_insn unnamed plusDI zero_extend, unnamed minusDI
        zero_extend, subdi3): Force and implement splits.
        
        * final.c (final_scan_insn): Don't output labels if target
        specifies ASM_OUTPUT_ADDR_{DIFF}_VEC.  Do these macro operations
        instead.
        
        * reorg.c (dbr_schedule): When taking on BR_PRED notes at the end,
        don't forget to walk inside SEQUENCESs too as these are what the
        delay slot scheduler will create.
        
Mon Aug 10 01:21:01 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (extxl+1,+2): New patterns to work around
        combine lossage.

Sat Aug  8 19:20:22 1998 Gary Thomas (gdt@linuxppc.org)

        * rs6000.c (rs6000_allocate_stack_space) Fix typo which
        caused bad assembly code to be generated.

Sat Aug  8 18:53:28 1998  Jeffrey A Law  (law@cygnus.com)

        * netbsd.h: Fix typo.

Mon Aug  3 00:06:42 1998  Robert Lipe  <robertl@dgii.com> 

        * config.sub: Fix typo.

Sun Aug  2 22:39:08 1998  Hans-Peter Nilsson  <hp@axis.se>

        * invoke.texi (Environment Variables): Typo: Change "ascpects"
        into "aspects".
        (Running Protoize): Typo: Change "ther" into "other".

Sun Aug  2 00:42:50 1998  Jeffrey A Law  (law@cygnus.com)

        * i386/netbsd.h: Undo previous change to DWARF2_UNWIND_INFO.
        * m68k/netbsd.h: Likewise.
        * ns32k/netbsd.h: Likewise.
        * sparc/netbsd.h: Likewise.

Sat Aug  1 17:59:30 1998  Richard Henderson  <rth@cygnus.com>

        * ginclude/va-alpha.h (va_list): Use a typedef, not a define.
        * ginclude/va-clipper.h (va_list): Likewise.

Fri Jul 31 20:22:02 1998  Michael Meissner  <meissner@cygnus.com>

        * rs6000.c (rs6000_override_options): If big endian and -Os, use
        load/store multiple instructions unless user overrides.

Fri Jul 31 17:08:59 1998  Jeffrey A Law  (law@cygnus.com)

        * ns32k/netbsd.h: Fix typo.

Fri Jul 31 10:23:55 1998  Doug Evans  <devans@canuck.cygnus.com>

        * m32r/m32r.h (ASM_OUTPUT_SOURCE_LINE): Always output line number
        labels with .debugsym if no parallel insns.

Thu Jul 30 19:15:53 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (fp cmp): Replicate patterns for ALPHA_TP_INSN.
        (fcmov): Remove ALPHA_TP_INSN patterns -- fcmov doesn't trap.

Thu Jul 30 19:50:15 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000/x-aix43 (AR_FOR_TARGET_FLAGS): Delete.
        (AR_FOR_TARGET): Define.

Thu Jul 30 12:29:12 1998  Mark Mitchell  <mark@markmitchell.com>

        * dyn-string.h: New file.
        * dyn-string.c: Likewise.
        * Makefile.in (OBJS): Add dyn-string.o.
        (dwarf2out.o): Add dyn-string.h dependency.
        (dyn-string.o): List dependencies.
        * dwarf2out.c: Include dyn-string.h.
        (ASM_NAME_TO_STRING): Use dyn_string_append, rather than strcpy.
        (addr_const_to_string): Take a dyn_string_t, not a char* as a
        prototype.  Use dyn_string_append rather than strcat, throughout.
        (addr_to_string): Use dyn_string_t.

Thu Jul 30 13:08:07 1998  Ken Raeburn  <raeburn@cygnus.com>

        Function entry/exit profiling instrumentation:
        * expr.h (profile_function_entry_libfunc,
        profile_function_exit_libfunc): Declare new variables.
        * optabs.c: Define them here.
        (init_optabs): Initialize them.
        * tree.h (struct tree_decl): New flag
        no_instrument_function_entry_exit.
        (DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
        * c-decl.c (duplicate_decls): Merge it.
        * c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
        (init_attributes): Use it for "no_instrument_function".
        (decl_attributes): Handle it, for functions that have not yet been
        compiled.  Set decl flag.
        * flags.h (flag_instrument_function_entry_exit): Declare new
        variable.
        * toplev.c (flag_instrument_function_entry_exit): Define it here.
        (f_options): New option "instrument-functions".
        * function.h (struct function): New field instrument_entry_exit.
        * function.c (current_function_instrument_entry_exit): New
        variable.
        (push_function_context_to, pop_function_context_from): Save and
        restore.
        (expand_function_start): Set current_ variable, maybe emit return
        label and entry profile call.
        (expand_function_end): Maybe emit exit profile call.

Thu Jul 30 00:58:34 1998  Jeffrey A Law  (law@cygnus.com)

        * i386.md (movqi): When optimizing a load of (const_int 1) into a
        NON_QI_REG_P, pretend the register is SImode.

Wed Jul 29 23:49:23 1998  Todd Vierling <tv@netbsd.org>

        * configure.in: Use xm-netbsd.h as the NetBSD xm file (not xm-siglist).
        Accept arm32 as arm, m68k4k as m68k, mipsle as mips-dec, and any
        manufacturer id for ns32k.
        * configure: Regenerated.
        * config/netbsd.h: When using ASM_WEAKEN_LABEL, make it global too.
        * config/t-netbsd: Don't compile libgcc1-test as the fns are in libc.
        * config/i386/netbsd.h: Undefine DWARF2_UNWIND_INFO, not define as 0.
        * config/m68k/netbsd.h: Same.
        * config/ns32k/netbsd.h: Same.
        * config/sparc/netbsd.h: Same.

Wed Jul 29 22:39:21 1998  Jeffrey A Law  (law@cygnus.com)

        * unroll.c (unroll_loop): Do not abort for an UNROLL_MODULO
        or UNROLL_COMPLETELY loop that starts with a jump to its
        exit code.

Wed Jul 29 22:18:14 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000/rs6000.md (absdi2 define_split): Swap operands of MINUS.
        * rs6000/rs6000.c (mask64_operand): Use HOST_BITS_PER_WIDE_INT.
        (print_operand, case 'B'): Don't fall through.
        (print_operand, case 'S'): Correct mask begin/end computation.
        Use HOST_BITS_PER_WIDE_INT.
        * rs6000/rs6000.h (CPP_PREDEFINES): Define _LONG_LONG.
        (CONDITIONAL_REGISTER_USAGE): GPR13 fixed if TARGET_64BIT.
        * rs6000/aix41.h (CPP_PREDEFINES): Same.
        * rs6000/aix43.h (CPP_PREDEFINES): Same.

Wed Jul 29 11:47:10 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.md (extendqisi2_insn): Remove earlyclobber
        constraint from second alternative.

Tue Jul 28 23:29:04 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * configure.in: Fix --without/--disable cases for local-prefix, 
        gxx-include-dir and checking.

Tue Jul 28 22:01:23 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * configure.in (enable_haifa): Set by default for sparc64 too.
        configure: Rebuilt.

Tue Jul 28 23:29:04 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * i386/cygwin32.h (VALID_MACHINE_TYPE_ATTRIBUTE): New macro.
        * i386/winnt.c (associated_type): New fn.
        (i386_pe_valid_type_attribute_p): New fn.
        (i386_pe_check_vtable_importexport): Remove.
        (i386_pe_dllexport_p): Use associated_type.
        (i386_pe_dllimport_p): Likewise.

        From Antonio M. O. Neto <anmendes@cruzeironet.com.br>:
        * i386.c (i386_valid_type_attribute_p): Also accept
        attributes for METHOD_TYPEs.

Tue Jul 28 23:17:39 1998  Peter Gerwinski <peter@gerwinski.de>

        * tree.c (build_range_type): Copy TYPE_SIZE_UNIT.

Tue Jul 28 22:31:12 1998  Craig Burley  <burley@gnu.org>

        * gcc.c: Fix commentary describing %g, %u, %U, and %O.

        * gcc.c (do_spec_1): Fix handling of %g%O and %U%O to prevent
        them from generating a new base name for each occurence of
        a specific suffix.

1998-07-28  Vladimir N. Makarov  <vmakarov@cygnus.com>

        * cse.c (cse_insn): Enable subsitution inside libcall only for REG,
        SUBREG, MEM.
        * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE. 



        * cplus-dem.c (type_kind_t): New type.
        (demangle_template_value_parm): Add type_kind_t parameter.  Rely
        on this paramter, rather than demangling the type again.
        (demangle_integral_value): Pass tk_integral.
        (demangle_template_: Pass the value returned from do_type.
        (do_type): Return a type_kind_t.  Pass tk_integral to
        demangle_template_value_parm for array bounds.
        (demangle_fund_type): Likewise.
        
Mon Jul 27 00:54:41 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * tree.c (simple_cst_equal, case CONSTRUCTOR): OK if the elts are
        identical.

Mon Jul 27 22:18:36 1998  Jeffrey A Law  (law@cygnus.com)

        * pa.c (move_operand): Accept CONSTANT_P_RTX.

Mon Jul 27 17:18:52 1998  Dave Brolley  <brolley@cygnus.com>

        * stor-layout.c (layout_type): Handle arrays of bits, for Chill.

        * expr.c (get_inner_reference): Handle zero-based, unsigned, array
        index conversion.

Mon Jul 27 14:51:33 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.h (DEBUGGER_AUTO_OFFSET): Define.
        (DEBUGGER_ARG_OFFSET): Likewise.

        * mn10300.md (movsf): Remove last change.  Not needed.

Mon Jul 27 14:22:36 1998  Dave Brolley  <brolley@cygnus.com>

        * c-lex.c (yylex): Fix boundary conditions in character literal and
        string literal loops.

Mon Jul 27 11:43:54 1998  Stan Cox  <scox@cygnus.com>

        * longlong.h (count_leading_zeros): Sparclite scan instruction was
        being invoked incorrectly.

        * i386.c (ix86_prologue): Added SUBTARGET_PROLOGUE invocation.
        * i386/cygwin32.h (STARTFILE_SPEC, LIB_SPEC, SUBTARGET_PROLOGUE): 
        Add -pg support. 
        * i386/win32.h: New file.  Hybrid mingw32.h/cygwin32.h configuration.
        * configure.in: Added i[34567]86-*-win32
        * config.sub: Ditto.
        * configure: Rebuilt.
        
Sun Jul 26 01:11:12 1998  H.J. Lu  (hjl@gnu.org)

        * i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Return 0 when eliminating
        the frame pointer and compiling PIC code and reload has not completed.

        * i386.c (output_to_reg): Add code to emulate non-popping DImode
        case.

Sun Jul 26 01:01:32 1998  Jeffrey A Law  (law@cygnus.com)

        * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head.

Sat Jul 25 23:29:23 1998  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

        * Makefile.in (install-info): Only try to update the info
        directory file if it exists in the first place.

Fri Jul 24 18:58:37 1998  Klaus Espenlaub  <kespenla@student.informatik.uni-ulm.de>

        * rs6000.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): Delete.

Fri Jul 24 14:20:26 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.md (movqi, movhi, movsi, movsf): Correctly handle
        CONST_DOUBLE source.

Fri Jul 24 11:17:04 1998  Nick Clifton  <nickc@cygnus.com>

        * config/arm/thumb.c (thumb_print_operand): Decode %_ in asm
        strings as the insertion of USER_LABEL_PREFIX.
        * config/arm/thumb.h (PRINT_OPERAND_PUNCT_VALID_P): Accept _ as a
        valid code.
        * config/arm/thumb.md: Use %_ as a prefix to gcc library function
        calls. 

Thu Jul 23 18:53:20 1998  Jim Wilson  <wilson@cygnus.com>

        * dbxout.c (dbxout_range_type): Only call dbxout_type_index for
        already defined type.

Thu Jul 23 13:49:41 1998  Jeffrey A Law  (law@cygnus.com)

        * expr.c (check_max_integer_computation_mode): Allow conversions
        of constant integers to MAX_INTEGER_COMPUTATION_MODE.
        (expand_expr): Likewise.

Thu Jul 23 11:12:06 1998  Alexandre Petit-Bianco  <apbianco@cygnus.com>

        * expr.c (expand_expr): Expand RETURN_EXPR.

Thu Jul 23 11:00:29 1998  Jim Wilson  <wilson@cygnus.com>

        * dwarf2out.c (dwarf2out_finish): Call stripattributes on TEXT_SECTION.

Wed Jul 22 19:10:00 1998  Catherine Moore  <clm@cygnus.com>

        * dwarf2out.c (output_aranges):  Call stripattributes
        for TEXT_SECTION references.
        (output_line_info): Likewise.

Wed Jul 22 14:08:54 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * profile.c (branch_prob): Call allocate_reg_info after outputting
        profile rtl in instrument_arcs.

Wed Jul 22 12:47:49 1998  Jim Wilson  <wilson@cygnus.com>

        * fixinc.irix (math.h): Install wrapper instead of copying.

Wed Jul 22 12:37:14 1998  Alexandre Petit-Bianco <apbianco@cygnus.com>

        * tree.def (EXPR_WITH_FILE_LOCATION): Defined as an 'e' expression
        so WFL are expanded correctly when contained in a COMPOUND_EXPR.
        * tree.h (EXPR_WFL_EMIT_LINE_NOTE): Change macro not to use
        lang_flag_0. Added documentation in the flag table.

Tue Jul 21 23:28:35 1998  Klaus Kaempf <kkaempf@rmi.de>

        * cccp.c (do_include): Fix vax c style include handling.

Tue Jul 21 13:28:19 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * cplus-dem.c (do_type): Use demangle_template_value_parm for arrays.

Sun Jul 12 01:27:05 1998  Jason Merrill  <jason@yorick.cygnus.com>

        * fold-const.c (non_lvalue): Don't deal with null pointer 
        constants here.
        (fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.

Tue Jul 21 15:49:31 1998  David Edelsohn  <edelsohn@mhpcc.edu>

        * rs6000.h (PREDICATE_CODES): Add CONSTANT_P_RTX.
        * rs6000.md (movsi, movdi): Add CONSTANT_P_RTX.
        * rs6000.c (short_cint_operand): Add CONSTANT_P_RTX.
        (u_short_cint_operand): Same.
        (reg_or_cint_operand): Same.
        (logical_operand): Same.
        (input_operand): Same.
        (reg_or_short_operand): Use u_short_cint_operand.

Tue Jul 21 08:56:42 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.md (fix_truncdfsi2, fix_truncsfsi2): Remove the define_expands,
        but keep the insns and splits.  Adjust so when the ultimate destination
        is memory, use cvtql.

Tue Jul 21 08:55:09 1998  Richard Henderson  <rth@cygnus.com>

        * flow.c (regno_uninitialized): Fixed regs are never uninitialized.

Tue Jul 21 00:31:01 1998  Jeffrey A Law  (law@cygnus.com)

        * gcc.c (do_spec): Call "error" not "warning".

        * configure.in: Fix minor problems with gas feature detection code.
        * configure: Rebuilt.

        * gcc.c (do_spec): Issue a warning for '%[]' usage.

        * Undo this change.
        * gcc.c: Delete %[spec] support.
        (do_spec_1, case '('): Likewise.
        (do_spec_1, case '['): Call error.

Mon Jul 20 22:34:17 1998  Richard Henderson  <rth@cygnus.com>

        * alpha.h (CPP_SPEC): Tidy.  Hook to cpp_cpu and cpp_subtarget.
        (CPP_SUBTARGET_SPEC): Default to empty string.
        (CPP_AM_*, CPP_IM_*, CPP_CPU_*, CPP_CPU_SPEC): New.
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): New.
        * alpha/elf.h (LD_SPEC): Use %(elf_dynamic_linker).
        * alpha/linux-elf.h (SUBTARGET_EXTRA_SPECS): New.
        (LIB_SPEC): Tidy.
        * alpha/linux.h (CPP_PREDEFINES): Tidy.
        * alpha/netbsd-elf.h (SUBTARGET_EXTRA_SPECS): New.
        * alpha/netbsd.h (CPP_PREDEFINES): Tidy.
        * alpha/osf.h (CPP_PREDEFINES): Remove bits subsumed by CPP_CPU_SPEC.
        * alpha/win-nt.h (CPP_PREDEFINES): Likewise.
        * alpha/vsf.h (CPP_PREDEFINES): Likewise.
        (CPP_SUBTARGET_SPEC): New.  Do this instead of overriding CPP_SPEC.
        * alpha/vxworks.h: Likewise.

Mon Jul 20 22:51:57 1998  Ken Raeburn  <raeburn@cygnus.com>

        * mips.md (reload_outsi): Added missing REGNO call.
        (smulsi3_highpart, umulsi3_highpart): Provide prototype for
        function pointer.
        (mul_acc_di, mul_acc_64bit_di): Don't use match_op_dup, use
        another match_operator and compare the codes.

        * mips.h (MASK_DEBUG_E, MASK_DEBUG_I): Set to zero.

        * MIPS multiply pattern fixes:
        * mips.h (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
        Add union classes for HI, LO, or HILO plus general registers.
        (GENERATE_MADD): Deleted.
        * mips.md (mulsi3_mult3): Don't disparage output-LO alternative.
        Add TARGET_MAD to condition.
        (mulsi3): Test HAVE_mulsi3_mult3, not specific flags.
        (mul_acc_si): Expand GENERATE_MADD here; it's the only use.  Use
        "*d" for accumulator, to give preference to LO initially but not
        during reload.

Mon Jul 20 16:16:38 1998  Dave Brolley  <brolley@cygnus.com>

        * configure.in (enable_c_mbchar): New configure option.
        (extra_cpp_objs): Always available now.

        * cexp.y (mbchar.h): #include it.
        (yylex): Handle Multibyte characters in character literals.

        * cccp.c (mbchar.h): #include it.
        (main): Set character set based on LANG environment variable.
        (rescan): Handle multibyte characters in comments.
        (skip_if_group): See above.
        (validate_else): See above.
        (skip_to_end_of_comment): See above.
        (macarg1): See above.
        (discard_comments): See above.
        (rescan): Handle multibyte characters in string and character literals.
        (collect_expansion): See above.
        (skip_quoted_string): See above.
        (macroexpand): See above.
        (macarg1): See above.
        (discard_comments): See above.
        (change_newlines): See above.

        * c-lex.c (mbchar.h): #include it.
        (GET_ENVIRONMENT): New macro.
        (init_lex): Set character set based on LANG environment variable.
        (yylex): Handle multibyte characters in character literals.
        (yylex): Handle multibyte characters in string literals.

        * Makefile.in (mbchar.o): New target.
        (cccp$(exeext)): @extra_cpp_objs@ is always available.
        (cppmain$(exeext)): @extra_cpp_objs@ is always available.

        * mbchar.[ch]: New files for multibyte character handling.

Mon Jul 20 01:11:11 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>

        * jump.c (jump_optimize): When simplifying noop moves and
        PUSH_ROUNDING, fix thinko so we use same criterion for identifying
        the PUSHes to rewrite in second loop as we did in the first.

Sun Jul 19 08:23:53 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * cplus-dem.c (demangle_nested_args): Make function definition
        static to match the prototype.

Fri Jul 17 14:58:44 1998  Richard Henderson  <rth@cygnus.com>

        * alloca.c: Respect USE_C_ALLOCA.
        * gencheck.c (xmalloc): Ignore __GNUC__ for definition.
        * gengenrtl.c (xmalloc): Likewise.

Fri Jul 17 14:18:14 1998  Richard Henderson  <rth@cygnus.com>

        * loop.h (struct induction): Add no_const_addval.
        * loop.c (the_movables, reg_address_cost): New variables.
        (init_loop): Init reg_address_cost.
        (loop_optimize): Call end_alias_analysis.
        (scan_loop): Init the_movables.
        (record_giv): Init induction->no_const_addval.
        (basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
        [REG]: Rearrange loop search test to catch more cases.
        (general_induction_var): Return success not benefit; take an extra
        argument for that.  Change all callers.
        (simplify_giv_expr) [PLUS]: Always combine invariants.  Use sge_plus.
        [MULT]: Use rtx_equal_p instead of ==.  Combine simple invariants.
        [default]: Search the_movables for additional combinations.
        (sge_plus_constant, sge_plus): New functions.
        (express_from_1): New function.
        (express_from): Always define.  Rewrite using express_from_1.
        (combine_givs_p): Handle more cases.  Ignore address cost.
        (cmp_combine_givs_stats): New function.
        (combine_givs_used_once, combine_givs_benefit_from): New functions.
        (combine_givs): Rewrite to do best-fit combination.

        * fold-const.c (operand_equal_p): Handle RTL_EXPR.
        (fold): Do a complete (A*C)+(B*C) association check.

Fri Jul 17 11:21:55 1998  Jim Wilson  <wilson@cygnus.com>

        * function.c (fixup_var_refs_insns): Handle CLOBBER of a CONCAT.

Fri Jul 17 11:48:55 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.c (MODES_TIEABLE_P): Fix typo.

Fri Jul 17 03:26:12 1998  Rihcard Earnshaw (rearnsha@arm.com)

        * tree.c (valid_machine_attribute): Only create a new type variant if
        there is a decl to use it.

Thu Jul 16 14:48:04 1998  Nick Clifton  <nickc@cygnus.com>

        * gcc.c (do_spec_1): Cope with %g/%u/%U options which do not have
        a suffix.

Fri Jul 17 03:24:40 1998  Hans-Peter Nilsson  <hp@axis.se>

        * extend.texi (Explicit Reg Vars): Typo: change "may deleted" into "may
        be deleted" 

Thu Jul 16 14:48:47 1998  Jeffrey A Law  (law@cygnus.com)

        * mn10300.c (count_tst_insns): New arg oreg_countp.  Callers changed.
        Simplify tests for clearing an address register.
        (expand_prologue): Corresponding changes.

        * mn10300.md (movXX patterns): Make sure the destination is an
        ADDRESS_REG when substituting "zero_areg" for (const_int 0).
        (logical patterns): Split into expanders + patterns
        (zero and sign extension patterns): Similarly.
        (shift patterns): Similarly.

Thu Jul 16 01:17:44 1998  Richard Henderson  <rth@cygnus.com>

        * loop.c (emit_iv_add_mult): Scan the entire insn list generated
        for the sequence, recording base values.

Wed Jul 15 10:49:55 1998  Richard Henderson  <rth@cygnus.com>

        * i386.h (CPP_CPU_SPEC): Remove -Asystem(unix).

Tue Jul 14 14:15:30 1998  Nick Clifton  <nickc@cygnus.com>

        * gcc.c: Remove ANSI-C ism from --help code.

        * toplev.c: Support --help with USE_CPPLIB.

Tue Jul 14 14:46:08 1998  Jeffrey A Law  (law@cygnus.com)

        * configure.in: Rework gas feature code to work with symlink based
        source trees.

        * extend.texi: Clarify some issues related to local variables
        assigned to explicit registers.

        * mn10300.md (mulsi): Turn into expander + pattern.

        * mn10300.md (movsi, movsf, movdi, movdf): Remove "x" from I -> a
        alternative.

Tue Jul 14 07:41:59 1998  Richard Earnshaw (rearnsha@arm.com)

        * arm/tcoff.h (USER_LABEL_PREFIX): Make it empty to match coff.h.

Tue Jul 14 03:02:44 1998  Jeffrey A Law  (law@cygnus.com)

        * version.c: Bump again to distinguish mainline tree from the
        egcs-1.1 branch.

See ChangeLog.0 for earlier changes.

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