2004-04-30 Paolo Bonzini <bonzini@gnu.org>

[gcc/gcc.git] / gcc / ChangeLog

2004-04-30  Paolo Bonzini  <bonzini@gnu.org>

        * config/altivec/altivec.h [__cplusplus] (vec_subsubs): Rename to
        vec_sububs.
        [__cplusplus] (vec_subsuhs): Rename to vec_subuhs, without
        duplicates.

2004-04-30  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.md (atansf2, atandf2, atanxf2): Move near
        atan2?f3 expanders.

2004-04-29  Nick Clifton  <nickc@redhat.com>

        Bug 14093
        * config/sh/sh-protos.h (sh_promote_prototypes): Declare.
        * config/sh/sh.c (sh_promote_prototypes): Remove declaration.
        Delete static from definition.
        * config/sh/sh.h (FUNCTION_VALUE): Add sh_promote_prototypes call.

2004-04-30  Uros Bizjak  <uros@kss-loka.si>

        * reg-stack.c (subst_stack_regs_pat): <UNSPEC_SIN, UNSPEC_COS,
        UNSPEC_FRNDINT, UNSPEC_F2XM1>: abort() if src1 dies.
        <UNSPEC_SINCOS_COS, UNSPEC_TAN_ONE, UNSPEC_XTRACT_FRACT>: Same.
        <UNSPEC_SINCOS_SIN, UNSPEC_TAN_TAN, UNSPEC_XTRACT_EXP>: Same.

2004-04-29  Richard Guenther  <richard.guenther@uni-tuebingen.de>

        * commom.opt (Wfatal-errors): Add it.
        * diagnostic.c (flag_fatal_errors): Define it.
        (diagnostic_action_after_output): Check for flag_fatal_errors.
        * flags.h (flag_fatal_errors): Declare it.
        * opts.c (common_handle_option): Add OPT_Wfatal_errors.
        * doc/invoke.texi (Warning Options): Document -Wfatal-errors.

2004-04-30  Josef Zlomek  <zlomekj@suse.cz>

        * gcse.c (remove_reachable_equiv_notes): Delete notes also in
        blocks which have kill flag set.

2004-04-29  Ben Elliston  <bje@au.ibm.com>

        * configure.ac (--with-as): Abort if user-supplied assembler
        cannot be executed.
        (--with-ld): Likewise for the linker.
        * configure: Regenerate.

2004-04-29  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_integer): Ensure `long_integer_type_node'
        isn't NULL before using it.

2004-04-29  Richard Sandiford  <rsandifo@redhat.com>

        PR target/15189
        * config/mips/mips.md (load_df_low): Use default length.
        (load_df_high, store_df_high): Likewise.

2004-04-29  Kazu Hirata  <kazu@cs.umass.edu>

        * config/mips/mips.md, config/mips/sb1.md,
        config/rs6000/rs6000.c: Fix comment typos.

2004-04-29  Kazu Hirata  <kazu@cs.umass.edu>

        * builtins.c, cgraph.c, cgraphunit.c, final.c, fold-const.c:
        Fix comment typos.

2004-04-29  Douglas B Rupp  <rupp@gnat.com>

        * gcc.c (DELETE_IF_ORDINARY): New macro default definition.
        (delete_if_ordinary): Use above macro.
        * config/alpha/xm-vms.h (DELETE_IF_ORDINARY): New macro VMS definition.
        Update copyright.
        * doc/hostconfig.texi (DELETE_IF_ORDINARY): Document new macro.

2004-04-29  Richard Earnshaw  <rearnsha@arm.com>

        * c-decl.c (get_parm_info): Use the correct tag keywords when
        warning about type declarations in prototypes.

2004-04-29  Paul Brook  <paul@codesourcery.com>

        * config.gcc: Pull list of cores from arm-cores.def.

2004-04-29  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (combine_simplify_rtx): Adjust call to use
        simplify_relational_operation.  Do not use SELECT_CC_MODE
        when a comparison already has a MODE_CC mode.

2004-04-29  Paolo Bonzini  <bonzini@gnu.org>

        (simplify_set): simplify_relational_operation may now
        return another relational expression.
        * cse.c (fold_rtx): simplify_relational_operation now
        takes of computing the comparison mode.
        * dojump.c (compare_from_rtx): Use simplify_relational_operation,
        remove dead code.
        (do_compare_rtx_and_jump): Likewise.
        * integrate.c (subst_constants): simplify_relational_operation
        may now return another relational expression.
        * simplify-rtx.c (simplify_gen_relational): Move most code to
        the new simplify_relational_operation and
        simplify_relational_operation_1 functions.
        (simplify_relational_operation): Rewritten.
        (simplify_relational_operation_1): New function.
        (simplify_ternary_operation): simplify_relational_operation
        may now return another relational expression.
        (simplify_rtx): Remove unnecessary temp variable. 

2004-04-29  Uros Bizjak  <uros@kss-loka.si>

        * reg-stack.c (swap_to_top): New function.
        (subst_stack_regs_pat): UNSPEC_FPATAN, UNSPEC_FYL2X: Use
        swap_to_top().
        (subst_stack_regs_pat): UNSPEC_FSCALE: Remove.
        (subst_stack_regs_pat): Handle UNSPEC_FSCALE_FRACT and 
        UNSPEC_FSCALE_EXP.

        * config/i386/i386.md (UNSPEC_FSCALE): Remove.
        (*fscale_sfxf3, *fscale_dfxf3, *fscale_xf3): Remove insn pattern.
        (UNSPEC_FSCALE_FRACT, UNSPEC_FSCALE_EXP): New unspecs to represent
        x87's fscale insn.
        (*fscalexf4: Define new insn pattern to implement x87 fscale insn.
        (exp?f2, exp10?f2, exp2?f2): Use *fscalexf4 and float_truncate
        patterns.

2004-04-28  Serge Belyshev  <1319@bot.ru>

        PR 14944
        * coverage.c (read_counts_file): Fix usage of warning () call.
        * pretty-print.c (pp_base_format_text): Fix typo in the comment.

2004-04-28  Ben Elliston  <bje@au.ibm.com>

        * doc/invoke.texi (Objective-C Dialect Options): Don't prefix
        options with "-" in the option index.
        (SPARC Options): Likewise.
        (M32R/D Options): Likewise.

2004-04-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_integer): Convert (long)round -> lround,
        etc.

2004-04-28  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/rs6000.c (registers_ok_for_quad_peep):
        Return false if we do not have fp register.
        (addrs_ok_for_quad_peep): Rename to ...
        (mems_ok_for_quad_peep): this.
        Add check for volatile memory.
        * config/rs6000/rs6000-protos.h (addrs_ok_for_quad_peep):
        Rename to ...
        (mems_ok_for_quad_peep): this.
        * config/rs6000/rs6000.md: Change peephole's for lfq/stq
        to peephole2's.
        (lfq_power2): New instruction.
        (stfq_power2): Likewise.

2004-04-28  Jan Hubicka  <jh@suse.cz>

        PR c/15004
        * function.c (do_warn_unused_parameter): Break out form ...
        (expand_function_end): ... here; warn only when not using cgraphunit.
        * function.h (do_warn_unused_parameter): Declare.
        * cgraphunit.c: Include function.h.
        (cgraph_finalize_function): Do unused parameter warning.
        * Makefile.in (cgraphunit.o): Depend on function.h

2004-04-28  Joseph S. Myers  <jsm@polyomino.org.uk>

        * Makefile.in ($(DESTDIR)$(infodir)/%.info): Don't condition
        calling install-info on $(DESTDIR)$(infodir)/dir already being
        present.

2004-04-28  Paul Brook  <paul@codesourcery.com>

        * dwarf2out.c (mem_loc_descriptor): Handle shifts.

2004-04-28  Ulrich Weigand  <uweigand@de.ibm.com>

        * gcse.c (find_moveable_store): Do not accept store insns with 
        REG_EH_REGION note.

2004-04-28  Paul Brook  <paul@codesourcery.com>

        * calls.c (precompute_arguments): Remove PROMOTE_FOR_CALL_ONLY.
        * function.c (assign_temp): Ditto.
        * system.h (PROMOTE_FOR_CALL_ONLY): Poison.

2004-04-28  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm: Recognize armv5tej and armv6.

2004-04-28  Josef Zlomek  <zlomekj@suse.cz>

        * var-tracking.c (variable_different_p): Add a parameter
        compare_current_location, compare current location of variable parts
        if it is true.
        (dataflow_set_different_1): Pass compare_current_location == false.
        (dataflow_set_different_2): Pass compare_current_location == false.
        (emit_notes_for_differences_1): Pass compare_current_location == true.

2004-04-28  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("casesi"): Mark jump table access as
        non-trapping and unchanging.

2004-04-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR debug/14829
        * dwarf2out.c (reg_number): Rename to dbx_reg_number.  Adjust all
        callers.
        (multiple_reg_loc_descriptor, reg_loc_descriptor): Use gcc register
        number for indexing hard_regno_nregs array.
        
2004-04-27  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (STARTFILE_SPEC): Use %s to find crt2.o.
        * config/darwin-crt2.c: Only have contents on __ppc__.

2004-04-27  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (call_insn_operand): Check
        SYMBOL_REF_EXTERNAL_P in addition to SYMBOL_REF_LOCAL_P.
        * config/xtensa/xtensa.h (LEGITIMATE_PIC_OPERAND): Likewise.
        * config/xtensa/xtensa.md (call, call_value): Likewise.

2004-04-27  Wu Yongwei  <adah@sh163.net>

        * gthr-win32.h (__gthread_mutex_t): Change typedef to new structure.
        (__GTHREAD_MUTEX_INIT_DEFAULT): Adjust.
        (__gthread_mutex_init_function): Replace CreateMutex with
        initialization of custom mutex using CreateSemaphore.
        (__gthread_mutex_lock): Use InterlockedIncrement.
        (__gthread_mutex_trylock): Use InterlockedCompareExchange.
        (__gthread_mutex_unlock): Use InterlockedDecrement and
        ReleaseSemaphore to unlock
        * config/i386/gthr-win32.c (__gthread_mutex_init_function,
        __gthread_mutex_lock, __gthread_mutex_trylock,
        __gthread_mutex_unlock): Adjust to match inline versions in
        gthr-win32.h.

2004-04-27  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_promote_prototypes): New function.
        (TARGET_PROMOTE_PROTOTYPES): Use it.

2004-04-27  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_expand_epilogue): Count blocks of 4 regs.

2004-04-26  Bernard Giroud  <bgiroud@free.fr>

        * config/alpha.c (alpha_end_function): For OpenVMS gas,
        correctly output .pdesc directive before .end.

2004-04-26  James E Wilson  <wilson@specifixinc.com>

        Bug 14927
        * config/ia64/ia64.md (movxf): New local op0.  Handle case where
        operands[0] is a SUBREG.  Handle case where operands[1] is a GR reg.

2004-04-26  Zack Weinberg  <zack@codesourcery.com>

        * config/ia64/hpux.h: Predefine __STDCPP__ when compiling C++.
        * config/pa/pa-hpux10.h: Likewise.
        * config/pa/pa-hpux11.h: Likewise.

2004-04-26  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Overall Options): Document default for -o
        for PCH files.

2004-04-26  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * builtins.c (expand_builtin_update_setjmp_buf): New function.
        (expand_builtin, case BUILT_IN_UPDATE_SETJMP_BUF): New case.
        * builtins.def (BUILT_IN_UPDATE_SETJMP_BUF): New code.

2004-04-26  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_legitimate_index_p): Correct iwmmxt offsets.

2004-04-26  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_legitimate_index_p): Correct maverick offsets.

2004-04-25  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold): Prefer fold_convert (negate_expr (...)) to
        fold (build1 (NEGATE_EXPR, ...)).  Optimize X / -1 as -X and
        X % -1 as 0.

2004-04-26  Hans-Peter Nilsson  <hp@bitrange.com>

        PR bootstrap/15141
        * except.c (connect_post_landing_pads): Delete insns after the
        barrier when generating a unwind_resume_libfunc call.

2004-04-25  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        PR/c++ 15119
        * tree.c (substitute_placeholder_in_expr, case 4): New case,
        for TARGET_EXPR.

2004-04-25  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>

        * gcov-io.h (__gcov_fork, __gcov_execl, __gcov_execlp, __gcov_execle,
        __gcov_execv, __gcov_execvp, __gcov_execve): Do not declare when
        inhibit_libc is defined.

2004-04-25  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips-protos.h (mips_linked_macc_p): Declare.
        * config/mips/mips.h (TUNE_MACC_CHAINS): New macro.
        * config/mips/mips.c (TARGET_SCHED_REORDER): Define.
        (TARGET_SCHED_VARIABLE_ISSUE): Define.
        (mips_adjust_cost): Move later in file, next to other sched hooks.
        (mips_macc_chains_last_hilo): New variable.
        (mips_linked_madd_p, mips_macc_chains_record, mips_macc_chains_reorder)
        (mips_promote_ready, mips_sched_reorder, mips_variable_issue): New.
        * config/mips/mips.md (may_clobber_hilo): New attribute.

2004-04-24  Roger Sayle  <roger@eyesopen.com>
            Bruce Korb  <bkorb@gnu.org>

        * fixinc/inclhack.def (aix_syswait_2): New fix.
        * fixinc/fixincl.x: Regenerate.
        * fixinc/tests/base/sys/wait.h: Update for new test.

2004-04-24  Alan Modra  <amodra@bigpond.net.au>

        PR target/14960
        * config/rs6000/rs6000.c (rs6000_stack_info): Rename total_raw_size
        to non_fixed_size, and leave out fixed_size from the sum.
        (generate_set_vrsave): Correct clobbers.
        (rs6000_emit_epilogue): Test TARGET_ALTIVEC with TARGET_ALTIVEC_SAVE.
        (rs6000_function_value): Test TARGET_ALTIVEC and TARGET_ALTIVEC_ABI.
        (rs6000_libcall_value): Likewise.
        * config/rs6000/rs6000.h (FUNCTION_VALUE_REGNO_P): Likewise.
        (FUNCTION_ARG_REGNO_P): Likewise.

2004-04-24  Ulrich Weigand  <uweigand@de.ibm.com>

        * expmed.c (expand_mult_highpart_adjust): Do not assume OP1
        is a CONST_INT.
        (expand_mult_highpart_optab): Call expand_mult_highpart_adjust
        with NARROW_OP1 instead of OP1.

2004-04-24  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/host-linux.c (TRY_EMPTY_VM_SPACE): Define for __s390__
        and __s390x__ hosts.

2004-03-23  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>

        * Makefile.in (LIBGCOV): Add _gcov_fork, _gcov_execl, _gcov_execlp,
        _gcov_execle, _gcov_execv, _gcov_execvp, _gcov_execve.
        * builtin-types.def (BT_PID, BT_PTR_CONST_STRING, BT_FN_PID,
        BT_FN_INT_CONST_STRING_PTR_CONST_STRING,
        BT_FN_INT_CONST_STRING_PTR_CONST_STRING_PTR_CONST_STRING): New.
        * builtins.c (expand_builtin_fork_or_exec): New.
        (expand_builtin): Call it.
        * builtins.def (BUILT_IN_EXECL, BUILT_IN_EXECLP,BUILT_IN_EXECLE,
        BUILT_IN_EXECV, BUILT_IN_EXECVP, BUILT_IN_EXECVE, BUILT_IN_FORK): New.
        * c-common.c (PID_TYPE): New macro.
        (c_common_nodes_and_builtins): Initialize pid_type_node.
        * calls.c (special_function_p): Do not handle fork and exec.
        (expand_call): Do not handle ECF_FORK_OR_EXEC.
        * gcov-io.h (__gcov_fork, __gcov_execl, __gcov_execlp, __gcov_execle,
        __gcov_execv, __gcov_execvp, __gcov_execve): Declare.
        * libgcov.c (__gcov_fork, __gcov_execl, __gcov_execlp, __gcov_execle,
        __gcov_execv, __gcov_execvp, __gcov_execve): New.
        * tree.h (enum tree_index): Add TI_PID_TYPE.
        (pid_type_node): New macro.
        (ECF_FORK_OR_EXEC): Removed.

2004-04-23  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR optimization/13985
        * cfgloopmanip.c (fix_loop_placements): New prototype.
        Call fix_bb_placements on the preheader of loops that have
        been reparented.
        (remove_path): Adjust call to fix_loop_placements.

2004-04-23  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/darwin7.h: New file.
        * config.gcc (*-*-darwin*): Add darwin7.h if the
        version is greater than 6.
        * config/darwin.h (TARGET_C99_FUNCTIONS): Define.
        (MATH_LIBRARY): Wrap in ifdefs.

2004-04-23  Daniel Jacobowitz  <drow@mvista.com>

        * config/arm/arm.c (arm_output_epilogue): Reverse the order of
        loading iWMMXt registers with a frame pointer.  Use post-increment
        without a frame pointer.
        (arm_expand_prologue): Reverse the order of saving iWMMXt registers.

2004-04-23  Paolo Bonzini  <bonzini@gnu.org>

        * doc/invoke.texi (Optimize Options): Refer to "unit-at-a-time
        mode" rather than "-funit-at-a-time" since -O2 enables it
        without requiring -f* options.  Refer to -fprofile-generate and
        -fprofile-use correctly.  Move -funit-at-a-time among options
        enabled by -O.  Add information about unit-at-a-time caveats.

2004-04-22  Per Bothner  <per@bothner.com>

        * line-map.h (struct line_maps):  New field highest_line.
        (linemap_position_for_column):  Make non-inline function.
        (LINEMAP_POSITION_FOR_COLUMN):  New macro.
        * line-map.c (linemap_init):  Clear highest_line field.
        (linemap_add):  Set highest_line field.
        (linemap_line_start):  Minor optimization - use highest_line field.
        Reduce maximum column hint to 10000.  Update highest_line field.
        (linemap_position_for_column):  Moved from line-map.h.  Optimize a bit.
        * cpphash.h (struct cpp_reader):  Remove line field - instead use
        line_table->highest_line.
        (saved_line):  Remove unused field.
        (CPP_INCREMENT_FILE):  Don't do linemap_lookup - just use newest map.
        Use  line_table's highest_line field instead of cpp_reader's line.
        * cpplib.c (start_directive):  Likewise use highest_line field.
        (do_line, do_linemarker):  Likewise just use newest map.
        (_cpp_do_file_change):  Don't need to set cpp_reader's line field.
        * cpperror.c (cpp_error):  Likewise use highest_line field.
        * cppfiles.c (open_file_failed:  Likewise.
        (cpp_make_system_header):  Likewise use newest map and highest_line.
        * cppinit.c (cpp_create_reader):  Don't initialize removed field.
        * cpplex.c (_cpp_process_line_notes, _cpp_skip_block_comment,
        skip_line_comment, skip_whitespace, _cpp_get_fresh_line,
        _cpp_lex_direct):  Likewise use highest_line.
        (_cpp_lex_direct):  Use new LINEMAP_POSITION_FOR_COLUMN macro.
        * cppmacro.c (_cpp_builtin_macro_text):  Likewise use highest_line,
        and use newest map.
        * cpppch.c (cpp_read_state):  Don't save+restore cpp_reader's line.
        * cpptrad.c (_cpp_overlay_buffer):  Don't save cpp_reader's line.
        (copy_comment, _cpp_scan_out_logical_line):  Likewise use highest_line.

2004-04-23  Alan Modra  <amodra@bigpond.net.au>

        PR bootstrap/14992
        * gcc.c (init_gcc_specs): Test USE_LD_AS_NEEDED, not HAVE_LD_AS_NEEDED.
        * config/linux.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/alpha/linux.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/arm/linux-elf.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/rs6000/linux.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/rs6000/linux64.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/sh/linux.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/sparc/linux.h (USE_LD_AS_NEEDED): Define.
        * gcc/config/sparc/linux64.h (USE_LD_AS_NEEDED): Define.

2004-04-22  Per Bothner  <per@bothner.com>

        * cppinit.c (cpp_read_main_file):  Return NULL rather than false.
        Fixes PR preprocessor/15067.

2004-04-23  Andreas Schwab  <schwab@suse.de>

        * config/ia64/ia64intrin.h: Add intermediate cast to void * to
        avoid aliasing warning.

2004-04-22  Jan Hubicka  <jh@suse.cz>
            Mostafa Hagog <mustafa@il.ibm.com>

      * cfgloopmanip.c (scale_bbs_frequencies): Use RDIV macro
      * cfgloopanal.c (expected_loop_iterations): Change the return value

2004-04-22  Jakub Jelinek  <jakub@redhat.com>

        * cselib.h (struct elt_loc_list): Remove canon_loc field.
        * cselib.c (new_elt_loc_list): Remove canon_loc initialization.
        (cselib_invalidate_mem): Remove all canon_loc and canon_x
        traces.

2004-04-22  Josef Zlomek  <zlomekj@suse.cz>

        Revert
        2004-04-20  Josef Zlomek  <zlomekj@suse.cz>

                * var-tracking.c (variable_part_different_p): Variable parts
                differ when the most recent locations differ.

2004-04-22  Richard Sandiford  <rsandifo@redhat.com>

        * doc/invoke.texi: Remove the MIPS -membedded-pic option.
        * config/mips/mips-protos.h (embedded_pic_fnaddr_reg): Delete.
        (embedded_pic_offset): Delete.
        * config/mips/mips.h (MASK_EMBEDDED_PIC): Delete.  Shuffle other
        MASK_* constants.
        (TARGET_EMBEDDED_PIC): Delete.
        (TARGET_SWITCHES): Remove -m{no-,}embedded-pic.
        (ASM_SPEC): Remove -membedded-pic.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Remove embedded-pic handling.
        (ASM_OUTPUT_CASE_LABEL): Likewise.
        * config/mips/vxworks.h (ASM_SPEC): Remove -membedded-pic.
        * config/mips/windiss.h (ASM_SPEC): Likewise.
        * config/mips/mips.c (struct machine_function): Remove
        embedded_pic_fnaddr_rtx.
        (TARGET_ENCODE_SECTION_INFO): Remove override.
        (embedded_pic_fnaddr_reg, embedded_pic_offset): Delete.
        (override_options): Remove -membedded-pic handling.
        (print_operand): Remove handling of '%S'.
        (mips_select_section: Remove -membedded-pic handling.
        (mips_encode_section_info): Delete.
        (mips_output_conditional_branch): Remove mention of -membedded-pic.
        * config/mips/mips.md (define_attr length, movsi, movdi, jump): Remove
        -membedded-pic handling.
        (casesi, casesi_internal, casesi_internal_di, get_fnaddr): Delete.

2004-04-22  Alan Modra  <amodra@bigpond.net.au>

        * var-tracking.c (frame_base_decl): Remove useless GTY.

2004-04-21  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_override_options): Error when
        user wants altivec and e500 instructions.

2004-04-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/14813
        * config/ia64/crtend.asm: Move pointer to __do_global_ctors_aux
        in .init_array section to ...
        * config/ia64/crtbegin.asm: Here.

        * config/ia64/crtend.asm: Mark __do_global_ctors_aux global
        and hidden if HAVE_INITFINI_ARRAY is defined.

2004-04-21  James E Wilson  <wilson@specifixinc.com>

        * config/mips/mips-protos.h (fp_register_operand, lo_operand): Declare.
        * config/mips/mips.c (mips_multipass_dfa_lookahead): Declare.
        (TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD): New.
        (fp_register_operand, lo_operand): New.
        (mips_rtx_costs): Add TUNE_SB1 support.
        (mips_issue_rate): Add comment.  Add PROCESSOR_SB1 support.
        (mips_use_dfa_pipeline_interface): Add PROCESSOR_SB1 support.
        (mips_multipass_dfa_lookahead): New.
        * config/mips/mips.h (MASK_FP_EXCEPTIONS, TARGET_FP_EXCEPTIONS,
        TUNE_SB1): New.
        (TARGET_SWITCHES): Add -mfp-exceptions support.
        (TARGET_FP_EXCEPTIONS_DEFAULT): New.
        (BRANCH_COST): Fix whitespace.
        * config/mips/mips.md: Include sb1.md.
        * config/mips/sb1.md: New file.
        * doc/invoke.texi: Document -mfp-exceptions.

        * Makefile.in (fixinc.sh): Don't set or export WARN_CFLAGS.  Fix
        comment.
        * fixinc/Makefile.in (FL_LIST): Don't mention WARN_CFLAGS.
        (fixincl.o-warn): Delete.

2004-04-21  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/rs6000 (print_operand) ['z']:
        Change ifdef of TARGET_MACHO to if TARGET_MACHO.

2004-04-21 Daniel Jacobowitz  <drow@mvista.com>

        * config.gcc: Support --with-arch=iwmmxt for ARM.

2004-04-21  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expmed.c (expand_mult_highpart_optab): Use narrower version of OP1
        in two more places; remove unneeded force_reg

2004-04-21  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/rs6000.c (symbol_ref_operand): Remove hack
        for TARGET_MACHO.
        (print_operand): For TARGET_MACHO check to see if we need a stub
        and output one if we need it.

        PR debug/15033
        * dwarf2out.c (rtl_for_decl_location): Check for NULL
        rtl.

2004-04-20  James E Wilson  <wilson@specifixinc.com>

        * config/ia64/ia64.md (call_value_nogp): Add constraints for op0.
        (vall_value_gp): Likewise.

2004-04-20  DJ Delorie  <dj@redhat.com>

        * dwarf2out.c (rtl_for_decl_location): Adjust rtl for byte
        variables stored in word registers, then in memory.

2004-04-20  Eric Christopher  <echristo@redhat.com>

        * cp/parser.c (cp_parser_declaration): Move translate
        up before tokens are lexed.

2004-04-20  Uros Bizjak  <uros@kss-loka.si>

        * optabs.h (enum optab_index): Add new OTI_asin and OTI_acos.
        (asin_optab, acos_optab): Define corresponding macros.
        * optabs.c (init_optabs): Initialize asin_optab and acos_optab.
        * genopinit.c (optabs): Implement asin_optab and acos_optab
        using asin?f2 and acos?f2 patterns.
        * builtins.c (expand_builtin_mathfn): Handle BUILT_IN_ASIN{,F,L}
        using asin_optab, and BUILT_IN_ACOS{,F,L} using acos_optab.
        (expand_builtin): Expand BUILT_IN_ASIN{,F,L} and BUILT_IN_ACOS{,F,L}
        using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (asindf2, asinsf2, asinxf2, acosdf2,
        acossf2, acosxf2): New expanders to implement asin, asinf, asinl,
        acos, acosf and acosl built-ins as inline x87 intrinsics.

2004-04-20  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_legitimate_address_p): Use rtx_equal_p.

2004-04-20  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_expand_prologue): Fix size calculation.

2004-04-20  Paolo Bonzini  <bonzini@gnu.org>

        Revert part of 2004-04-17 change that moved -frename-registers
        to -O1.  -frename-registers is buggy.

        * toplev.c (flag_rename_registers): Initialize to 0.
        * doc/invoke.texi (Optimize options): Move -frename-registers
        to "Not triggered by any -O level" section.  Adjust commentary
        accordingly.

2004-04-20  Anil Paranjpe <anilp1@kpitcummins.com>

        * toplev.c (compile_file): Move targetm.asm_out.file_end call to end.

2004-04-20  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.c (mips_legitimize_move): Generate special patterns
        for mflo and mfhi instructions.
        (mips_output_move): Remove mflo and mfhi handling.
        * config/mips/mips.md (UNSPEC_MFHILO): New unspec.
        (*mulsidi3_64bit): Update for new mfhi/mflo representation.
        Likewise various define_peephole2s.
        (*movdi_32bit, *movdi_64bit, *movsi_internal): Merge x<-J and x<-d
        alternatives.
        (*movdi_64bit, *movdi_64bit_mips16, *mov[shq]i_internal)
        (*mov[shq]i_mips16): Remove mflo and mfhi alternatives.
        (mfhilo_di, mfhilo_si): New patterns.

2004-04-20  Josef Zlomek  <zlomekj@suse.cz>

        * function.c (assign_parms): Force
        MEM_EXPR (DECL_INCOMING_RTL (parm)) == parm.

2004-04-20  Josef Zlomek  <zlomekj@suse.cz>

        * var-tracking.c (variable_part_different_p): Variable parts differ
        when the most recent locations differ.

2004-04-19  James E Wilson  <wilson@specifixinc.com>

        * rtl.h (reg_set_last): Delete declaration.
        * rtlanal.c (reg_set_last): Delete.

2004-04-19  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_convert): Make function extern/public.
        * tree.h (fold_convert): Prototype here.
        * builtins.c (expand_builtin_strstr, expand_builtin_strchr,
        expand_builtin_strrchr, expand_builtin_strpbrk,
        expand_builtin_mempcpy, expand_builtin_bcopy,
        expand_builtin_bzero, expand_builtin_memcmp,
        expand_builtin_strcmp, expand_builtin_strncmp,
        stabilize_va_list, expand_builtin_sprintf,
        fold_trunc_transparent_mathfn, fold_builtin_logarithm,
        fold_builtin_exponent, fold_builtin_mempcpy,
        fold_builtin_strcpy, fold_builtin_strcmp, fold_builtin_strncmp,
        fold_builtin_signbit, fold_builtin_isdigit, fold_builtin): Prefer
        fold_convert to "convert" or "fold (build1 (NOP_EXPR, ...))".

2004-04-19  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.md (UNSPEC_MV_CR_GT): New constant.
        (move_from_CR_gt_bit): New.
        (cceq_ior_compare): Name previously unnamed pattern.  Disable for
        E500.
        (cceq_rev_compare): Name previously unnamed pattern.  Allow for
        E500.

        * config/rs6000/spe.md (cmpsfeq_gpr): Rewrite as unspec.
        (tstsfeq_gpr): Same.
        (cmpsfgt_gpr): Same.
        (tstsfgt_gpr): Same.
        (cmpsflt_gpr): Same.
        (tstsflt_gpr): Same.
        (e500_cceq_ior_compare): New.
        (e500_flip_gt_bit): New.

        * config/rs6000/rs6000.c (ccr_bit): Remove E500 specific code.
        (print_operand): Add 'c' and 'D'.
        (rs6000_generate_compare): Rewrite to generate correct rtl.
        (rs6000_emit_sCOND): Handle E500.
        (output_cbranch): Adjust for changes in rs6000_generate_compare.
        (output_e500_flip_gt_bit): New.

        * config/rs6000/rs6000-protos.h (output_e500_flip_gt_bit):
        Protoize.

2004-04-19  Eric Christopher  <echristo@redhat.com>

        * config/mips/mips.h (DWARF2_ADDR_SIZE): New.

2004-04-19  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi (*-ibm-aix*): Add AIX 5.1 assembler and archiver
        fix information.

2004-04-19  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, mips-sgi-irix5): Fix IRIX 5.3 IDO
        download URL.

2004-04-19  Daniel Jacobowitz  <drow@mvista.com>

        * stor-layout.c (layout_decl): Check DECL_PACKED before calling
        ADJUST_FIELD_ALIGN.  Check maximum_field_alignment after.

2004-04-19  Andrew PInski  <pinskia@physics.uc.edu>

        * builtins.c (fold_builtin_cabs): Remove fndecl parameter.
        (fold_builtin): Update caller to match.

        PR bootstrap/15009
        * bb-reorder.c (fix_up_fall_thru_edges): Init cond_jump.

        PR bootstrap/14999
        * builtins.c (fold_builtin_cabs): Mark fndecl as unused.

2004-04-19  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * varasm.c (compare_constant, case VIEW_CONVERT_EXPR): Add case.

        * expmed.c (expand_mult_highpart_adjust): Make OP1 valid for MODE.
        (expand_mult_highpart_optab): Likewise.
        (expand_mult_highpart): Make OP1 valid for WIDER_MODE, not MODE.

2004-04-19  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (fixuns_truncsfsi2, fixuns_truncdfsi2,
        floatunssisf2, floatunssidf2): New patterns.

2004-04-18  Mark Mitchell  <mark@codesourcery.com>

        PR other/14918
        * doc/invoke.texi (-fprofile-generate): Document requirement to
        use -fprofile-generate when linking.

        * doc/extend.texi (Strong Using): Warn users against using this
        feature.

2004-04-18  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips-protos.h (m16_usym8_4, m16_usym5_4): Delete.
        * config/mips/mips.h (mips_entry, mips_string_length): Delete.
        (CONSTANT_POOL_BEFORE_FUNCTION, ASM_OUTPUT_POOL_EPILOGUE): Undefine.
        * config/mips/mips.c (struct mips16_constant): Renamed from struct
        constant.  Propogate change throughout file.
        (struct machine_function): Remove insns_len.
        (mips_string_length, mips16_strings, string_constants): Delete.
        (mips_classify_symbol): Return SYMBOL_CONSTANT_POOL for LABEL_REFs
        when generating mips16 code.  Remove special mips16 treatment of
        string constants.
        (mips_symbolic_constant_p): Allow mips16 constant pool accesses
        to have the form LABEL+CONSTANT.
        (mips_symbolic_address_p): Fix comment.
        (m16_usym8_4, m16_usym5_4): Delete.
        (mips_output_function_epilogue): Remove mips16 string handling.
        (mips_output_mi_thunk): Call mips16_lay_out_constants.
        (mips_select_section, mips_encode_section_info): Remove mips16
        string handling.
        (struct mips16_constant_pool): New.
        (add_constant): Take a mips16_constant_pool structure.  Keep pool
        sorted into order of ascending mode size.  Keep track of the highest
        possible start address, taking padding and the masking of the base PC
        value into account.
        (dump_constants_1): New function, split out from dump_constants.
        Handle vector constants.  Use gen_consttable_{int,float} rather than
        separate functions for each mode.
        (dump_constants): Simplify.  Use GET_MODE_ALIGNMENT.  Use gen_align
        rather than separate functions for each alignment.
        (mips_find_symbol): Delete.
        (mips16_insn_length): New function, split out from
        mips16_lay_out_constants.
        (mips16_rewrite_pool_refs): New function.
        (mips16_lay_out_constants): Rework. Remove string handling.
        Always create an inline constant pool.
        * config/mips/mips.md (UNSPEC_CONSTTABLE_INT, UNSPEC_CONSTTABLE_FLOAT)
        (UNSPEC_ALIGN): New constants.
        (UNSPEC_CONSTTABLE_[QHSD]I, UNSPEC_CONSTTABLE_[SD]F): Delete.
        (UNSPEC_ALIGN_[248]): Delete.
        (consttable_int, consttable_float, align): New patterns.
        (consttable_[qhsd]i, consttable_[sd]f, align_[248]): Delete.

2004-04-17  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/altivec.h (vec_any_numeric): Correct typo in
        __unn_args_eq.

2004-04-17  Alan Modra  <amodra@bigpond.net.au>

        PR target/14715
        * config/rs6000/rs6000.c (rs6000_stack_info): Make parm_size agree
        with STARTING_FRAME_OFFSET.

2004-04-17  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (PREDICATE_CODES): Add macc_msac_operand.
        * config/mips/mips.c (macc_msac_operand): New function.
        * config/mips/mips.md (*msac): Move after *macc.
        (*msac2): New.  Generalize macc-related peepholes so that they apply
        to msac too.

2004-04-17  Paolo Bonzini  <bonzini@gnu.org>

        * opts.c (decode_options): Do not enable flag_rename_registers
        and flag_web at -O3.
        * toplev.c (flag_rename_registers): Initialize
        flag_rename_registers and flag_web to
        AUTODETECT_FLAG_VAR_TRACKING.
        (default_debug_hooks): New global.
        (process_options): Initialize default_debug_hooks.  Warn if
        -fvar-tracking specified but not supported by the current
        debug format.  Do not run var tracking at -O0 or if not
        supported by the current debug format, even if
        -fvar-tracking was given.  If -fno-rename-registers
        is not specified, always run register renaming if var
        tracking is supported by the default debugging information
        format for the target, and we are at -O1 or higher; similarly
        for -fweb, but only at -O2 or higher.
        * doc/invoke.texi (Optimize Options): Document this.

2004-04-17  Richard Sandiford  <rsandifo@redhat.com>

        * configure.ac (gcc_cv_ld_as_needed): Use AC_CACHE_CHECK.
        * configure: Regenerate.

2004-04-17  Richard Sandiford  <rsandifo@redhat.com>

        * gcc.c (used_arg): Check whether an option has been removed.

2004-04-17  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * config.gcc (i[34567]86-*-solaris2*): Default to DWARF-2
        debugging on Solaris 7 and up.

2004-04-16  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, mips-sgi-irix5): Reflect working
        IRIX 5 port.
        Remove -save-temps workaround, handled automatically.
        Require GNU binutils 2.15 for debugging.
        Remove SGI make warnings since GNU make is now required.
        (Specific, mips-sgi-irix6): Some markup fixes.
        Describe MIPSpro C problems and workarounds.
        Mention working O32 ABI support.
        Recommend GNU as 2.15 for O32 with debugging.
        Remove description of fixed structure pass/return bug.

2004-04-16  DJ Delorie  <dj@redhat.com>

        * sdbout.c (sdbout_one_type): Use TYPE_VALUES for enums, not
        TYPE_FIELDS.
        (sdbout_finish): Don't free deferred_global_decls; it's GC'd.

2004-04-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Remove unnecessary declarations for asm_out_file.

        * pa64-regs.h (DBX_REGISTER_NUMBER): Simplify and correct mapping of
        SAR register.  Fix comment.
        (ADDITIONAL_REGISTER_NAMES): Correct register number of SAR register
        (%cr11).

        * pa64-hpux.h (LIB_SPEC): Fix library specification used with GNU ld.

2004-04-16  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.c (arm_override_options): Revert previous patch.
        * config/arm/t-xscale-elf: Disable iwmmxt multilibs until they can
        be safely built.

2004-04-16  Kazuhiro Inaoka <inaoka dot kazuhiro at renesas dot com>

        * config/m32r/m32r.h (BIG_ENDIAN_BIT): Deleted to fix endian
        bug.
        (TARGET_LITTLE_ENDIAN, TARGET_BIG_ENDIAN,
        TARGET_DEFAULT): Changed. Ditto.
        (LITTLE_ENDIAN_BIT, TARGET_CPU_DEFAULT,
        TARGET_ENDIAN_DEFAULT): Added. Ditto.
        * config/m32r/little.h (TARGET_LITTLE_ENDIAN): Deleted.
        (TARGET_ENDIAN_DEFAULT): Added.

2004-04-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (BUILT_IN_ISDIGIT, BUILT_IN_ISXDIGIT): Mark with
        ATTR_CONST_NOTHROW_LIST.

2004-04-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR/middle-end 14915
        * builtins.c (expand_builtin_signbit): Test BYTES_BIG_ENDIAN, not
        BITS_BIG_ENDIAN.

2004-04-15  Pat Haugen  <pthaugen@us.ibm.com>

        * ra-debug.c (ra_print_rtx): Add break's to case legs.

2004-04-14  James E Wilson  <wilson@specifixinc.com>

        * Makefile.in (fixinc.sh): Set WARN_CFLAGS to empty string.

2004-04-14  Nathanael Nerode  <neroden@gcc.gnu.org>

        * libada-mk.in: New file.
        * configure.ac: Create libada-mk from libada-mk.in.
        * configure: Regenerate.

2004-04-14  Uros Bizjak  <uros@kss-loka.si>

        * optabs.h (enum optab_index): Add new OTI_logb and OTI_ilogb.
        (logb_optab, ilogb_optab): Define corresponding macros.
        * optabs.c (init_optabs): Initialize logb_optab and ilogb_optab.
        * genopinit.c (optabs): Implement logb_optab and ilogb_optab
        using logb?f2 and ilogb?i2 patterns.
        * builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOGB{,F,L}
        using logb_optab, and BUILT_IN_ILOGB{,F,L} using ilogb_optab.
        (expand_builtin): Expand BUILT_IN_LOGB{,F,L} and BUILT_IN_ILOGB{,F,L}
        using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

        * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_XTRACT_FRACT
        and UNSPEC_XTRACT_EXP.

        * config/i386/i386.md (*fxtractdf3, *fxtractsf3, *fxtractxf3): New
        patterns to implement fxtract x87 instruction.
        (logbdf2, logbsf2, logbxf2, ilogbsi2): New expanders to implement
        logb, logbf, logbl, ilogb, ilogbf and ilogbl built-ins as inline x87
        intrinsics.
        (UNSPEC_XTRACT_FRACT, UNSPEC_XTRACT_EXP): New unspecs to represent
        x87's fxtract insn.

2004-04-14  Eric Christopher  <echristo@redhat.com>

        * config/mips/t-elf: Enable multilibs by default.

2004-04-14  Andreas Tobler  <a.tobler@schweiz.ch>

        * bb-reorder.c (fix_crossing_conditional_branches): Adjust the
        previous fix to check HAVE_return at runtime too.

2004-04-14  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.c (arm_override_options): If the user has not
        specified an ABI, then default to AAPCS for the iWMMXt processor.
        * config/arm/t-xscale-elf: Remove redundant multilib specifications.
        * config/arm/t-xscale-coff: Likewise.

2004-04-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_isdigit): New.
        (fold_builtin): Handle BUILT_IN_ISDIGIT.
        * defaults.h: Add TARGET_DIGIT0 and sort.
        * doc/tm.texi: Add TARGET_BS and TARGET_DIGIT0.

2004-04-14  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_cabs, fold_builtin): Use
        `mathfn_built_in' to determine the new builtin.
        * fold-const.c (fold): Likewise.

2004-04-14  Richard Sandiford  <rsandifo@redhat.com>

        * doc/invoke.texi: Rename MIPS's -mfix-vr4122-bugs to -mfix-vr4120.
        * config/mips/mips.h (MASK_FIX_VR4120): Renamed from MASK_FIX_VR4122.
        (TARGET_FIX_VR4120): Likewise TARGET_FIX_VR4122.
        (TARGET_SWITCHES): Replace -mfix-vr4122-bugs with -mfix-vr4120.
        (ASM_SPEC): Update accordingly.
        * config/mips/mips.c: Update after above renaming.
        * config/mips/mips.md, config/mips/t-vr, config/mips/vr.h: Likewise.
        * config/mips/vr4120-div.S: Renamed from vr4122-div.S.

2004-04-13  James E Wilson  <wilson@specifixinc.com>

        * c-opt.c (c_common_post_options): If this_input_filename is NULL,
        increment errorcount and return false instead of true.

2004-04-13  Uros Bizjak  <uros@kss-loka.si>:

        * optabs.c (expand_twoval_unop): Reorder function arguments.
        * builtins.c (expand_builtin_mathfn_3): Update calls to
        expand_twoval_unop.

        * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_TAN_ONE
        and UNSPEC_TAN_TAN. Add missing comment.

        * config/i386/i386.md (*tandf3_1, *tansf3_1, *tanxf3_1): New
        patterns to implement fptan x87 instruction.
        (tandf2, tansf2, tanxf2): New expanders to implement tan, tanf
        and tanl built-ins as inline x87 intrinsics. Define corresponding
        peephole2 optimizers for 'fptan; fstp %st(0); fld1' sequence.
        (UNSPEC_TAN_ONE, UNSPEC_TAN_TAN): New unspecs to represent
        x87's fptan insn.

2004-03-13  Richard Henderson  <rth@redhat.com>

        * bb-reorder.c (fix_crossing_unconditional_branches): Use Pmode
        for LABEL_REFs.

        * defaults.h (HOT_TEXT_SECTION_NAME): Add leading dot.
        (UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Likewise.
        * doc/invoke.texi: Update to match.

        * varasm.c (unlikely_text_section): Use assemble_align instead of
        ASM_OUTPUT_ALIGN.  Use it in the correct place with an approximately
        correct alignment argument.

2004-04-13  Ulrich Weigand  <uweigand@de.ibm.com>

        * reload1.c (emit_reload_insns): Set reg_has_output_reload to one
        after setting reg_last_reload_reg for optional output reloads.

2004-04-12  Fariborz Jahanian <fjahanian@apple.com>

        * config/rs6000/altivec.h (vec_mergeh, vec_mergel):
        Definition of these two macros are corrected by adding
        matchine right paren.

2004-04-12  Jonathan Larmour  <jifl@eCosCentric.com>

        * fix-header.c: kill(), putenv() and tzset() are POSIX not ANSI.

2004-04-12  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (output_387_reg_move): New function.
        * config/i386/i386-protos.h (output_387_reg_move): Prototype here.
        * config/i386/i386.md (*movsf_1, *movsf1_nointerunit,
        *movdf_nointeger, *movdf_integer, *movxf_nointeger, *movxf_integer,
        *extendsfdf2_1,  *extendsfxf2_1, *extenddfxf2_1, truncdfsf2_noop,
        truncxfsf2_noop, truncxfdf2_noop): Call output_387_reg_move.

2004-04-12  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-decl.c (finish_decl): Make a decl_stmt for a variable-sized
        TYPE_DECL.
        * c-semantics.c (genrtl_decl_stmt): Handle TYPE_DECL.
        * stmt.c (expand_decl): Remove redundant expansion of TYPE_DOMAIN.
        * stor-layout.c (variable_size): Don't check for MINUS_EXPR.
        Use skip_simple_arithmetic to find SAVE_EXPR.
        (force_type_save_exprs, force_type_save_exprs_1): New functions.
        * tree-inline.c (remap_type, case POINTER_TYPE, case REFERENCE_TYPE):
        Properly chain multiple pointers.
        (copy_tree_r): Copy a TYPE_DECL.
        * tree.c (variably_modified_type_p): Add some missing tests and
        make some other minor changes.
        * tree.h (force_type_save_exprs): New declaration.

2004-04-12  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation) <UDIV, DIV, UMOD, MOD>:
        Remove fall throughs.  Convert 0/x and 0%x into x&0 when x has
        side-effects.  Don't convert x/1.0 into x if we honor signaling NaNs.
        Convert x/-1.0 into -x if we don't honor signaling NaNs.  Convert
        x/-1 into -x.  Optimize x%1 into x&0 if x has side-effects.  Optimize
        x%-1 into 0 (or x&0 if x has side-effects).

2004-04-11  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.md: Document why a pattern is not
        available.

        * config/rs6000/rs6000.c (rs6000_emit_cmove): Disable comparisons
        of floats on the E500.
        (branch_positive_comparison_operator): Do not allow NE even on the
        E500.

2004-04-11  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_assemble_integer): Change
        in_text_unlikely_section to in_unlikely_text_section.

2004-04-11  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary_op_with_conditional_arg):  Tweak
        calling convention to allow a NULL_TREE to be returned.  Factor
        sanity checks from callers, return NULL_TREE when appropriate.
        (fold): Handle COMPOUND_EXPR operands of binary expressions
        before COND_EXPR operands.  Use reorder_operands_p(a,b) to check
        whether a op (b,c) can be rewritten as (b, a op c).  Simplify
        calls to fold_binary_op_with_conditional_arg.

2004-04-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/mips/iris5.h (current_section_flags):  Add
        in_unlikely_executed_text and default case.

2004-04-11  Andreas Tobler  <a.tobler@schweiz.ch>

        * bb-reorder.c (fix_crossing_conditional_branches): Fix bootstrap
        failure on solaris. Place ifdef HAVE_return around gen_ret call.
        * cfgrtl.c (force_nonfallthru_and_redirect): Remove ifdef
        HAVE_return and place it around the place where it is needed.

2004-04-11  Andrew Pinski  <pinskia@physics.uc.edu>

        * varasm.c (text_section): Use TEXT_SECTION_ASM_OP and
        ASM_OUTPUT_ALIGN instead of SECTION_FORMAT_STRING
        and NORMAL_TEXT_SECTION_NAME.
        (unlikely_text_section): Check targetm.have_named_sections
        instead of TARGET_ASM_NAMED_SECTION and use TEXT_SECTION_ASM_OP
        instead of SECTION_FORMAT_STRING.
        * config/mips/iris5.h (current_section_name): Add
        in_unlikely_executed_text case and move the abort into the switch.
        * config/rs6000/sysv4.h (HOT_TEXT_SECTION_NAME): Remove.
        (NORMAL_TEXT_SECTION_NAME): Remove.
        (UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Remove.
        (SECTION_FORMAT_STRING): Remove.
        * defaults.h (SECTION_FORMAT_STRING): Remove.
        * tm.texi (NORMAL_TEXT_SECTION_NAME): Remove.
        (SECTION_FORMAT_STRING): Remove.

2004-04-10  Joseph S. Myers  <jsm@polyomino.org.uk>

        * c-typeck.c (common_type): Prefer long long to long when same
        precision.

2004-04-09  Zack Weinberg  <zack@codesourcery.com>

        PR 14887
        * config/ia64/hpux.h (MEMBER_TYPE_FORCES_BLK): Look only at
        mode argument.
        * config/ia64/ia64.c (ia64_hpux_file_end): Check
        TREE_SYMBOL_REFERENCED on DECL_ASSEMBLER_NAME, not DECL_NAME.

2004-04-09  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (mode_signbit_p): New function to check whether
        an RTX is an immediate constant that represents the most significant
        bit of a given machine mode.
        (simplify_unary_operation) <NOT>: Optimize ~(X+C) as X ^ ~C, where
        C is the sign bit.
        (simplify_binary_operation) <PLUS>: Optimize (X^C1) + C2 as X^(C1^C2)
        when C2 is the sign bit.
        (simplify_binary_operation) <XOR>: Canonicalize X^C as X+C when C
        is the sign bit.  Optimize (X+C1) ^ C2 as X^(C1^C2) when C1 is the
        sign bit.

2004-04-09  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (mathfn_built_in): Check TYPE_MAIN_VARIANT, not
        TYPE_MODE.

2004-04-09  Andrew Pinski  <pinskia@physics.uc.edu>

        * c-common.c (handle_noreturn_attribute): Use TYPE_READONLY instead
        of TREE_READONLY for types.

2004-04-09  Caroline Tice  <ctice@apple.com>

        * basic-block.h (struct edge_def):  Add new field, crossing_edge.
        (struct basic_block_def):  Add new field, partition.
        (UNPARTITIONED, HOT_PARTITION, COLD_PARTITION):  New constant macro
        definitions.
        (partition_hot_cold_basic_blocks): Add extern function
        declaration.
        * bb-reorder.c (function.h, obstack.h, expr.h, regs.h):  Add four new
        include statements.
        (N_ROUNDS): Increase the maximum number of rounds by 1.
        (branch_threshold): Add array value for new round.
        (exec_threshold): Add array value for new round.
        (push_to_next_round_p): New function.
        (add_unlikely_executed_notes): New function.
        (find_rarely_executed_basic_blocks_and_crossing_edges): New function.
        (mark_bb_for_unlikely_executed_section): New function.
        (add_labels_and_missing_jumps): New function.
        (add_reg_crossing_jump_notes): New function.
        (fix_up_fall_thru_edges): New function.
        (find_jump_block): New function.
        (fix_crossing_conditional_branches): New function.
        (fix_crossing_unconditional_branches): New function.
        (fix_edges_for_rarely_executed_code): New function.
        (partition_hot_cold_basic_blocks): New function.
        (find_traces):  Add an extra round for partitioning hot/cold
        basic blocks.
        (find_traces_1_round): Add a parameter.  Modify to push all cold blocks,
        and only cold blocks, into the last (extra) round of collecting traces.
        (better_edge_p): Add a parameter.  Modify to favor non-crossing edges
        over crossing edges.
        (bb_to_key):  Add code to correctly identify cold blocks when
        doing partitioning.
        (connect_traces): Modify to connect all the non-cold traces first, then
        go back and connect up all the cold traces.
        (reorder_basic_blocks):  Add call to add_unlikely_executed_notes.
        * cfg.c (entry_exit_blocks): Add initialization for partition field in
        entry and exit blocks.
        * cfgbuild.c (make_edges): Update current_function_has_computed_jump
        if we are doing hot/cold partitioning.
        * cfgcleanup.c (cfglayout.h): Add new include statement.
        (try_simplify_condjump): Modify to not attempt on blocks with jumps
        that cross section boundaries.
        (try_forward_edges): Likewise.
        (merge_blocks_move_predecessor_nojumps): Likewise.
        (merge_blocks_move_successor_nojumps): Likewise.
        (merge_blocks_move): Likewise.
        (try_crossjump_to_edge): Modify to not attempt after we have done
        the block partitioning.
        (try_crossjump_bb): Modify to not attempt on blocks with jumps that
        cross section boundaries.
        (try_optimize_cfg): Likewise.
        * cfghooks.c (tidy_fallthru_edges): Modify to not remove indirect
        jumps that cross section boundaries.
        * cfglayout.c (flags.h): Add new include statement.
        (update_unlikely_executed_notes):  New function.
        (fixup_reorder_chain):  Add code so when a new jumping basic block is
        added, it's UNLIKELY_EXECUTED_CODE and REG_CROSSING_JUMP notes are
        updated appropriately.
        (duplicate_insn_chain):  Add code to duplicate the new NOTE insn
        introduced by this optimization.
        * cfglayout.h (scan_ahead_for_unlikely_executed_note):  Add new
        extern function declaration.
        * cfgrtl.c (can_delete_note_p):  Add NOTE_INSN_UNLIKELY_EXECUTED_CODE to
        list of notes that can be deleted.
        (create_basic_block_structure):  Add initialization for partition field.
        (rtl_can_merge_blocks):  Modify to test blocks for jumps that cross
        section boundaries.
        (try_redirect_by_replacing_jump):  Modify to not attempt on jumps that
        cross section boundaries.
        (commit_one_edge_insertion): Add code so newly created basic block
        ends up in correct (hot or cold) section.  Modify to disallow
        insertions before NOTE_INSN_UNLIKELY_EXECUTED_CODE notes.
        (rtl_verify_flow_info_1):  Add code to verify that no fall_thru edge
        crosses section boundaries.
        (cfg_layout_can_merge_blocks_p): Modify to test blocks for jumps that
        cross section boundaries.
        (force_nonfallthru_and_redirect): Modify to make sure new basic block
        ends up in correct section, with correct notes attached.
        * common.opt (freorder-blocks-and-partition):  Add new flag for this
        optimization.
        * dbxout.c (dbx_function_end):  Add code to make sure scope labels at
        the end of functions are written into the correct (hot or cold)
        section.
        (dbx_source_file): Add code so writing debug file information
        doesn't incorrectly change sections.
        * defaults.h (NORMAL_TEXT_SECTION_NAME): New constant macro, for use
        in partitioning hot/cold basic blocks into separate sections.
        (SECTION_FORMAT_STRING): New constant macro, for linux/i386 hot/cold
        section partitioning.
        (HAS_LONG_COND_BRANCH): New constant macro, indicating whether or not
        conditional branches can span all of memory.
        (HAS_LONG_UNCOND_BRANCH): New constant macro, indicationg whether or not
        unconditional branches can span all of memory.
        * final.c (scan_ahead_for_unlikely_executed_note):  New function.
        (final_scan_insn):  Add code to check for NOTE instruction indicating
        whether basic block belongs in hot or cold section, and to make sure
        the current basic block is being written to the appropriate section.
        Also added code to ensure that jump table basic blocks end up in the
        correct section.
        * flags.h (flag_reorder_blocks_and_partition):  New flag.
        * ifcvt.c (find_if_case_1):  Modify to not attempt if conversion if
        one of the branches has a jump that crosses between sections.
        (find_if_case_2): Likewise.
        (ifcvt): Modify to not attempt to mark loop exit edges after
        hot/cold partitioning has occurred.
        * opts.c (decode_options): Code to handle new flag,
        flag_reorder_blocks_and_partition; also to turn it off if
        flag_exceptions is on.
        (common_handle_option): Code to handle new flag,
        flag_reorder_blocks_and_partition.
        * output.h (unlikely_text_section): New extern function declaration.
        (in_unlikely_text_section): New extern function declaration.
        * passes.c (rest_of_handle_stack_regs):  Add
        flag_reorder_blocks_and_partition as an 'or' condition for calling
        reorder_basic_blocks.
        (rest_of_handle_reorder_blocks):  Add flag_reorder_blocks_and_partition
        as an 'or' condition for calling reorder_basic_blocks.
        (rest_of_compilation):  Add call to partition_hot_cold_basic_blocks.
        * print-rtl.c (print_rtx): Add code for handling new note,
        NOTE_INSN_UNLIKELY_EXECUTED_CODE
        * rtl.c  (NOTE_INSN_UNLIKELY_EXECUTED_CODE): New note insn (see below).
        (REG_CROSSING_JUMP): New kind of reg_note, to mark jumps that
        cross between section boundaries.
        * rtl.h (NOTE_INSN_UNLIKELY_EXECUTED_CODE):  New note instruction,
        indicating the basic block containing it belongs in the cold section.
        (REG_CROSSING_JUMP): New type of reg_note, to mark jumps that cross
        between hot and cold sections.
        * toplev.c (flag_reorder_blocks_and_partition):  Add code to
        initialize this flag, and to tie it to the command-line option
        freorder-blocks-and-partition.
        * varasm.c (cfglayout.h):  Add new include statement.
        (unlikely_section_label_printed):  New global variable, used for
        determining when to output section name labels for cold sections.
        (in_section):  Add in_unlikely_executed_text to enum data structure.
        (text_section):  Modify code to use SECTION_FORMAT_STRING and
        NORMAL_TEXT_SECTION_NAME macros.
        (unlikely_text_section):  New function.
        (in_unlikely_text_section):  New function.
        (function_section):  Add code to make sure beginning of function is
        written into correct section (hot or cold).
        (assemble_start_function):  Add code to make sure stuff is written to
        the correct section.
        (assemble_zeros):  Add in_unlikely_text_section as an 'or' condition
        to an if statement that was checking 'in_text_section'.
        (assemble_variable):  Add 'in_unlikely_text_section' as an 'or'
        condition to an if statement that was checking 'in_text_section'.
        (default_section_type_flags_1):  Add check: if in cold section
        flags = SECTION_CODE.
        * config/darwin.c (darwin_asm_named_section):  Modify to use
        SECTION_FORMAT_STRING if we are partitioning hot/cold blocks.
        * config/i386/i386.h (HAS_LONG_COND_BRANCH): Defined this macro
        specifically for the i386.
        (HAS_LONG_UNCOND_BRANCH):  Defined this macro specifically for the i386.
        * config/rs6000/darwin.h (UNLIKELY_EXECUTED_TEXT_SECTION_NAME): Change
        text string to something more informative.
        (NORMAL_TEXT_SECTION_NAME): Add new definition.
        (SECTION_FORMAT_STRING):  Add new definition.
        * config/rs6000/rs6000.c (rs6000_assemble_integer):  Add
        '!in_unlikely_text_section' as an 'and' condition to an if statement
        that was already checking '!in_text_section'.
        * config/rs6000/sysv4.h (HOT_TEXT_SECTION_NAME,NORMAL_TEXT_SECTION_NAME,
        UNLIKELY_EXECUTED_TEXT_SECTION_NAME,SECTION_FORMAT_STRING): Make
        sure these are properly defined for linux on ppc.
        * doc/invoke.texi  (freorder-blocks-and-partition): Add documentation
        for this new flag.
        * doc/rtl.texi (REG_CROSSING_JUMP):  Add documentation for new
        reg_note.
        * doc/tm.texi (NORMAL_TEXT_SECTION_NAME, SECTION_FORMAT_STRING,
        HAS_LONG_COND_BRANCH, HAS_LONG_UNCOND_BRANCH): Add documentation for
        these new macros.

2004-04-08  Roger Sayle  <roger@eyesopen.com>

        * function.c (gen_mem_addressof): When changing the RTX from a REG
        to a MEM, clear MEM_VOLATILE_P which was formerly REG_USERVAR_P.

2004-04-08  Roger Sayle  <roger@eyesopen.com>

        PR target/14888
        * config/i386/i386.md (truncdfsf2_noop, truncxfsf2_noop,
        truncxfdf2_noop): Provide dummy "fmov" implementations.

2004-04-08  Ian Lance Taylor  <ian@wasabisystems.com>

        * gcc.c (default_compilers): Add missing initializers.

        * config/rs6000/host-darwin.c (darwin_rs6000_gt_pch_use_address):
        Return 1 if file was successfully mapped.

2004-04-08  Geoffrey Keating  <geoffk@apple.com>

        PR pch/13419
        PR pch/14137
        Radar #: 3315288
        * doc/invoke.texi (Precompiled Headers): Suggest -o
        to put an output file in a particular place.  Be more detailed
        about which options affect PCH validity and which options
        might not work.
        * c-pch.c (pch_matching): New.
        (MATCH_SIZE): New.
        (struct c_pch_validity): New field 'match'.
        (pch_init): Handle pch_matching.
        (c_common_valid_pch): Check pch_matching.

        * explow.c: Fix typo defining default of PROMOTE_FUNCTION_MODE.

2004-04-08  Mark Mitchell  <mark@codesourcery.com>

        * doc/invoke.texi (Precompiled Headers): Warn about known
        problems.

2004-04-08  Danny Smith  <dannysmith@users.sourceforge.net>

        PR c++/14808
        * defaults.h (TARGET_USE_LOCAL_THUNK_ALIAS_P): New macro. Default
        to 1 if ASM_OUTPUT_DEF is defined.
        * doc/tm.texi (TARGET_USE_LOCAL_THUNK_ALIAS_P): Document.
        * config/i386/cygming.h (TARGET_USE_LOCAL_THUNK_ALIAS_P): Define.
        Set to non-zero iff not a one_only decl.

2004-04-08  Paul Brook  <paul@codesourcery.com>

        * arm.h (CLASS_LIKELY_SPILLED_P): Define.

2004-04-08  Paul Brook  <paul@codesourcery.com>

        * explow.c (promote_mode): Use PROMOTE_FUNCTION_MODE instead of
        PROMOTE_FOR_CALL_ONLY.
        * config/arm/arm-protos.h (arm_function_value): Declare.
        * config/arm/arm.h (TARGET_PROMOTE_FUNCTION_ARGS): Define.
        (TARGET_PROMOTE_PROTOTYPES): Return false.
        (arm_function_value): New function.
        * config/arm/arm.h (PROMOTE_FUNCTION_MODE): Define.
        (FUNCTION_VALUE): Call arm_function_value.
        * config/cris/cris.h (PROMOTE_MODE): Rename ...
        (PROMOTE_FUNCTION_MODE): ... to this.
        (PROMOTE_FOR_CALL_ONLY): Remove.
        * config/mmix/mmix.h: Likewise.
        * config/s390/s390.h: Likewise.
        * config/sparc/sparc.h: Likewise.
        * config/sparc/sparc.c: Update comments about PROMOTE_MODE.
        * doc/tm.texi (PROMOTE_FUNCTION_MODE): Document.
        (TARGET_PROMOTE_FUNCTION_MODE, TARGET_PROMOTE_FUNCTION_RETURN): Update.
        (PROMOTE_FOR_CALL_ONLY): Remove.

2004-04-08  Joel Sherrill <joel@oarcorp.com>

        PR ada/14538
        * ada/5rosinte.adb: Remove fake mprotect() body.
        * ada/5rosinte.ads: Add SA_SIGINFO.
        * ada/5rtpopsp.adb: Rewrite to use new interface.
        * ada/init.c: Reorder so the simple single OS conditional __rtems__
        is tested before more complex ones which mix UNIX and embedded
        systems in the conditional.

2004-04-08  Joel Sherrill  <joel@oarcorp.com>

        PR ada/14665
        * ada/osint.adb (Find_Program_Name): Rework to properly handle
        filenames which end in .exe or have versioning suffixes like VMS.

2004-04-08  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/10129
        * config/darwin.c (darwin_encode_section_info): When the decl has
        a DECL_INITIAL, it is only defined also when it is not a common.

2004-04-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_isascii, fold_builtin_toascii): New.
        (fold_builtin): Handle BUILT_IN_ISASCII and BUILT_IN_TOASCII.

2004-04-07  H.J. Lu  <hongjiu.lu@intel.com>

        * config/ia64/ia64.c (ia64_encode_section_info): Don't prod
        global register variables.

2004-04-07  Joseph S. Myers  <jsm@polyomino.org.uk>

        * fixinc/inclhack.def (rpc_xdr_lvalue_cast_a,
        rpc_xdr_lvalue_cast_b): New fixes.
        * fixinc/fixincl.x: Regenerate.
        * fixinc/tests/base/rpc/xdr.h: Add new tests.

2004-04-07  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (processor_target_table): Add MASK_MFCRF
        to power4 and power5 entries.

2004-04-06  Geoffrey Keating  <geoffk@apple.com>

        * c-common.h (pending_lang_change): Mark for PCH.

2004-04-07  Caroline Tice  <ctice@apple.com>

        * gcc.c (main): Move 'break' in main loops (on an error)
        to wait until error processing has occurred.

2004-04-06  Nathanael Nerode  <neroden@gcc.gnu.org>

        * config.gcc: Stop changing enable_threads midstream.
        Replace uses of enable_threads_flag with enable_threads.
        * configure.ac: Replace uses of enable_threads_flag with
        enable_threads.  Improve autoconf quotation in one place.
        * configure: Regenerate.

2004-04-06  Uros Bizjak  <uros@kss-loka.si>

        * builtins.c: Implement support for sincos function.
        (expand_builtin_mathfn): Remove BUILT_IN_SIN{,F,L} and
        BUILT_IN_COS{,F,L}.
        (expand_builtin_mathfn_3): New function.
        (expand_builtin): Expand BUILT_IN_SIN{,F,L} and
        BUILT_IN_COS{,F,L} using expand_builtin_mathfn_3 if
        flag_unsafe_math_optimization is set.

        * optabs.h (enum optab_index): Add new OTI_sincos.
        (sincos_optab): Define corresponding macro.

        * optabs.c (init_optabs): Initialize sincos_optab.
        (expand_twoval_unop): New function.

        * genopinit.c (optabs): Implement sincos_optab using sincos?f3
        patterns.

        * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_SINCOS_COS
        and UNSPEC_SINCOS_SIN.

        * config/i386/i386.md (sincosdf3, sincossf3, *sincosextendsfdf3,
        sincosxf3): New patterns to implement sincos, sincosf and sincosl
        built-ins as inline x87 intrinsics. Define splits for
        sindf2, sinsf2, *sinextendsfdf2, sinxf2, cosdf2,
        cossf2, *cosextendsfdf2 and cosxf2 patterns from corresponding
        sincos patterns.
        (sindf2, sinsf2, sinxf2): Rename to *sindf2, *sinsf2, *sinxf2.
        (cosdf2, cossf2, cosxf2): Rename to *cosdf2, *cossf2, *cosxf2.

        (UNSPEC_SINCOS_SIN, UNSPEC_SINCOS_COS): New unspecs to represent
        x87's fsincos insn.

2004-04-06  Devang Patel  <dpatel@apple.com>

        PR 14467
        * config/darwin.h (LINK_COMMAND_SPEC): Use c++filt instead of c++filt3.

2004-04-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/install.texi: Update HP-UX 11 installation procedure.

2004-04-06  Paul Brook  <paul@codesourcery.com>

        * doc/sourcebuild.texi: Remove obsolete contraint on testcases.

2004-04-05  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (prepare_move_operands): Use emit_call_insn
        when the TLS address is generated by a function call.
        * config/sh/sh.md (tls_global_dynamic): Use a call expression.
        (tls_local_dynamic): Likewise.

2004-04-05  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree.c (reconstruct_complex_type): Use TYPE_READONLY
        and TYPE_VOLATILE.

2004-04-05  Caroline Tice  <ctice@apple.com>

        * gcc.c (combine_flag): New global variable, for new driver option.
        (struct compiler): Add two new fields, to be used when
        combining multiple input files in a single pass (IMA).
        (default_compilers):  Add values for the new fields to all
        compiler entries. Modify the "@c" compiler entry for doing IMA
        properly with "-save-temps" and the "combine" flag.
        (option_map):  Add new driver option, "--combine", to tell driver
        to pass multiple input files to compiler at one time.
        (have_o_argbuf_index): New global variable.
        (store_arg): Modify to assign value to have_o_argbuf_index.
        (struct infile):  Add three new fields, to help with IMA.
        (display_help): Add help for new "combine" option.
        (process_command): Remove local variable have_o; add code to check
        for new "combine" option; remove assignment to combine_inputs.
        (do_spec_1):  Modify to deal with IMA better.
        (main): Make variable 'lang_n_infiles' local to entire function
        rather than to a single block.  Use flag combine_flag to
        determine whether to do IMA or not; Modify loop initializing
        infiles to deal properly with linker files.
        Add code for doing preprocessing in presence of
        IMA with "-save-temps" flag.  Modify "main" loop to handle
        multiple input files, in multiple languages, with or without
        preprocessing,  gracefully.
        * toplev.c (set_src_pwd): Modify to not complain if attempting to
        re-set it to same directory it's previously been set to (avoid
        irritating, meaningless warning messages when doing IMA with
        save-temps).
        * doc/invoke.texi: Add "-combine" to list of Overall Options;
        remove documentation about IMA that is no longer accurate; Add
        documentation explaining what "-combine" does.
        * ada/lang-specs.h: Add initialization values for new fields in
        "struct compiler".
        * cp/lang-specs.h: Likewise.
        * f/lang-specs.h: Likewise.
        * java/lang-specs.h: Likewise.
        * objc/lang-specs.h: Likewise.
        * treelang/lang-specs.h: Likewise.

2004-04-05  David Edelsohn

        * config/rs6000/rs6000.c (VTABLE_NAME_P): Add _ZTI to special
        symbol handling.

2004-04-05  Jakub Jelinek  <jakub@redhat.com>
            John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR optimization/13424 (hppa), bootstrap/14462, c/14828
        * pa.md: Use replace_equiv_address to retain the attributes of the
        memory operands used in the split and peephole2 patterns for optimizing
        the pre-reload movstrsi, movstrdi, clrstrsi and clrstrdi patterns.

2004-04-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * c-decl.c (build_compound_literal): Use TYPE_READONLY.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
        * objc/objc-act.c (adorn_decl, gen_declspecs): Likewise.
        * c-typeck.c (decl_constant_value): Don't access DECL_INITIAL of a
        PARM_DECL.
        * calls.c (flags_from_decl_or_type): Use TYPE_READONLY and do so only
        for a type.
        * print-tree.c (print_node): Properly handle side-effects, readonly,
        and constant flags.
        * tree.c (build1_stat, build_expr_wfl): Only look at TREE_SIDE_EFFECTS
        and TREE_CONSTANT if not a type.
        * tree.h (IS_NON_TYPE_CODE_CLASS): New macro.
        (IS_EXPR_CODE_CLASS): Write 'E', not 'e'.
        (NON_TYPE_CHECK): New macro.
        (TREE_SIDE_EFFECT, TREE_READONLY, TREE_CONSTANT: Add check.

2004-04-05  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sol2-bi.h (PREFERRED_DEBUGGING_TYPE): Set
        to DWARF2_DEBUG unconditionally.
        (ASM_DEBUG_SPEC): Set the default to --gdwarf2 unconditionally.

2004-04-04  Ian Lance Taylor  <ian@wasabisystems.com>
            Nathanael Nerode  <neroden@gcc.gnu.org>

        PR target/14548
        * config.host: Set the shell variable host_can_use_collect2.
        Set it to yes by default, and to no for alpha*-dec-*vms*,
        i[34567]86-*-mingw32*, and powerpc-*-beos*.
        * configure.ac: Set and substitute the shell variable collect2.
        Give an error if use_collect2 is yes and host_can_use_collect2 is
        no.
        * Makefile.in (COLLECT2): Rename from USE_COLLECT2.  Change all
        uses.  Initialize to @collect2@.
        (STAGESTUFF): Remove $(USE_COLLECT2).
        * config/alpha/x-vms (USE_COLLECT2): Don't set.
        * config/i386/t-mingw32 (USE_COLLECT2): Likewise.
        * config/rs6000/t-beos (USE_COLLECT2): Likewise.
        * config/pa/t-pa64: Remove commented out USE_COLLECT2.
        * configure: Regenerate.

2004-04-04  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation): Constant fold
        DIV, MOD, UDIV and UMOD using div_and_round_double.

2004-04-04  Mark Mitchell  <mark@codesourcery.com>

        PR c++/14804
        * varasm.c (initializer_constant_valid_p): Allow NOP_EXPRs to
        RECORD_TYPEs.

2004-04-04  Mark Mitchell  <mark@codesourcery.com>

        * doc/invoke.texi (-mabi=o64): Create link to O64 ABI
        documentation.

2004-04-04  Roger Sayle  <roger@eyesopen.com>

        * cse.c (cse_insn): Correct usage of simplify_replace_rtx when
        updating the REG_EQUAL note on an insn's libcall_insn.

2004-04-04  Roger Sayle  <roger@eyesopen.com>

        * df.h: Tidy up whitespace in the definitions of the DF_ flags.

2004-04-03  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold) <PLUS_EXPR>: Guard (-A)+B -> B-A transformation
        with reorder_operands_p.

2004-04-03  Jan Hubicka  <jh@suse.cz>

        * md.texi (vec_set, vec_extract, vec_init): Document.

2004-04-02  Gabor Loki <loki@inf.u-szeged.hu>

       * opts.c (decode_options): Do function inlining with very small
       max-inline-insns-* parameters when optimizing for size.

2004-04-02  Vladimir Makarov  <vmakarov@redhat.com>

        * config/i386/i386.h (TARGET_NOCONA): New macro.
        (TARGET_CPU_CPP_BUILTINS): Add code for Nocona.
        (processor_type): Add PROCESSOR_NOCONA.

        * config/i386/i386.md (cpu): Add nocona to the attribute values.

        * config/i386/i386.c (nocona_cost): New variable.
        (m_NOCONA): New macro.
        (x86_push_memory, x86_movx, x86_cmove, x86_deep_branch,
        x86_branch_hints, x86_use_sahf, x86_single_stringop,
        x86_sub_esp_4, x86_sub_esp_8, x86_add_esp_4, x86_add_esp_8,
        x86_integer_DFmode_moves, x86_partial_reg_dependency,
        x86_memory_mismatch_stall, x86_accumulate_outgoing_args,
        x86_decompose_lea, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_sse_load0_by_pxor,
        x86_ext_80387_constants, x86_four_jump_limit):
        (override_options): Add nocona_cost to processor_target_table.
        Set up PROCESSOR_NOCONA for Nocona entry in processor_alias_table.
        (incdec_operand): Prevent inc/dec generation for Nocona too.
        (ix86_issue_rate): Add PROCESSOR_NOCONA.

2004-04-01  Andrew Pinski  <pinskia@physics.uc.edu>

        * rtlanal.c (find_reg_note): Manually
        unswitch the loop.

2004-04-01  Mark Mitchell  <mark@codesourcery.com>

        * genemit.c (gen_split): Change prototype of generated code.
        * genrecog.c (write_action): Adjust prototype for and calls to
        gen_split_*.
        * gensupport.c (struct queue_elem): Add split field.
        (queue_pattern): Return a value.  Clear the split field.
        (process_rtx): Maintain an association between an insn and the
        split generated from it for a define_insn_and_split.
        (process_one_cond_exec): Generate a new split for a
        define_insn_and_split.
        * config/arm/arm-protos.h (arm_split_constant): Add insn
        parameter.
        (emit_constant_insn): New function.
        (arm_gen_constant): Use it.
        * config/arm/arm.md: Adjust calls to arm_split_constant.

2004-04-02  Jan Hubicka  <jh@suse.cz>

        * cgraph.c: Add overall comment.
        (cgraph_inline_hash): New global variable.
        (cgraph_create_node): Break out from ...
        (cgraph_node): ... here.
        (cgraph_edge): New function.
        (cgraph_create_edge): New CALL_EXPR argument; some sanity checking.
        (cgraph_remove_edge): Accept edge, intead of source and destination.
        (cgraph_redirect_edge_callee): New.
        (cgraph_remove_node): Update all new datastructures.
        (cgraph_record_call, cgraph_remove_call): Kill.
        (dump_cgraph_node): Break out from ... ; dump new datastructures.
        (dump_cgraph): ... here.
        (cgraph_function_possibly_inlined_p): Use new hashtable.
        (cgraph_clone_edge, cgraph_clone_node): New.
        * cgraph.h: Include hashtab.h
        (struct cgraph_global_info): Kill cloned_times, inline_once, will_be_output
        fields, add inlined_to pointer.
        (cgraph_node): Add pointer to next_clone.
        (cgraph_remove_edge, cgraph_create_edge): Update prototype.
        (cgraph_remove_call, cgraph_record_call): Kill.
        (cgraph_inline_hash): Declare.
        (dump_cgraph_node, cgraph_edge, cg4raph_clone_edge, cgraph_clone_node,
        cgraph_redirect_edge_callee): Declare.
        (cgraph_create_edges, cgraph_inline_p): Update prorotype.
        (cgraph_preserve_function_body_p, verify_cgraph, verify_cgraph_node,
        cgraph_mark_inline_edge, cgraph_clone_inlined_nodes): Declare.
        * cgraphunit.c: Add overall comment.
        (cgraph_optimize_function): Kill.
        (cgraph_assemble_pending_functions): Do not assemble inline clones.
        (cgraph_finalize_function): Update call of cgraph_remove_node
        (record_call_1): Record call sites.
        (cgraph_create_edges): Accept node instead of decl argument.
        (error_found): New static variable.
        (verify_cgraph_node_1, verify_cgraph_node, verify_cgraph): New functions.
        (cgraph_analyze_function): Update for new datastructures.
        (cgraph_finalize_compilation_unit): Plug memory leak.
        (cgraph_optimize_function): Kill.
        (cgraph_expand_function): Do not use cgraph_optimize_function.
        (INLINED_TIMES, SET_INLINED_TIMES, cgraph_inlined_into,
        cgraph_inlined_callees): Kill.
        (cgraph_remove_unreachable_nodes): Verify cgraph; update handling of
        clones.
        (estimate_growth): Simplify.
        (cgraph_clone_inlined_nodes): New function.
        (cgraph_mark_inline_edge): Re-implement.
        (cgraph_mark_inline): Likewise.
        (cgraph_check_inline_limits): Simplify.
        (cgraph_recursive_inlining_p): New.
        (update_callee_keys): Break out from ...
        (cgraph_decide_inlining_of_small_functions): ... here; simplify.
        (cgraph_decide_inlining, cgraph_decide_inlining_incrementally):
        Likewise.
        (cgraph_expand_all_functions):  Remove inline clones from the ordered
        list.
        (cgraph_preserve_function_body_p): New predicate.
        (cgraph_optimize): Verify cgraph.
        * function.h (struct function): Add fields saved_tree/saved_args.
        * timevar.def (TV_CGRAPH_VERIFY): Use verifier.
        * toplev.c (rest_of_compilation): Do not free cfun.
        * tree-inline.c: Include function.h
        (struct inline_data): Add saving_p field; replace decl/current_decl by
        node/current_node.
        (insert_decl_map): New function.
        (copy_body_r): Handle saving; update cgraph datastructure.
        (copy_body): Handle recursive inlining.
        (initialize_inlined_parameters): Likewise.
        (expand_call_inline): Propagate node attributes; update cgraph.
        (optimize_inline_calls): Verify that datastructure still match.
        (save_body): New function.
        * tree-inline.h (save_body): New.
        * tree-optimize.c (tree_rest_of_compilation): preserve function body; do inlining.
        * langhooks-def.c (LANG_HOOKS_UPDATE_DECL_AFTER_SAVING): New.
        * langhooks.c (lang_hooks): Add update_decl_after_saving.

2004-04-01  Serge Belyshev  <1319@bot.ru>

        PR target/14702
        * config/i386/i386.md: fix source operand constraints in
        mmx_pshufw, sse2_pshufd, sse2_pshuflw, sse2_pshufhw

2004-04-01  Waldek Hebisch  <hebisch@math.uni.wroc.pl>

        * fold-const.c (folda): Preserve types of comparisons.

2004-04-01  Richard Henderson  <rth@redhat.com>

        * toplev.c (backend_init): Move init_optimization_passes call ...
        (lang_dependent_init): ... here.

2004-04-01  Alan Modra  <amodra@bigpond.net.au>
            Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (init_gcc_specs): If HAVE_LD_AS_NEEDED, link with
        -lgcc --as-needed -lgcc_s --no-as-needed by default.
        * configure.ac (HAVE_LD_AS_NEEDED): Check for ld --as-needed.
        * configure: Rebuilt.
        * config.in: Rebuilt.
        * Makefile.in (stage1-start): Copy also libgcc_s*$(SHLIB_EXT).
        (stage2-start, stage3-start, stage4-start): Likewise.
        (stageprofile-start, stagefeedback-start): Likewise.

2004-04-01  Jakub Jelinek  <jakub@redhat.com>

        * config/sparc/sparc.h (DITF_CONVERSION_LIBFUNCS): Define to 0.
        * config/sparc/linux.h (DITF_CONVERSION_LIBFUNCS): Redefine to 1.
        * config/sparc/linux64.h (DITF_CONVERSION_LIBFUNCS): Redefine to 1.
        * config/sparc/sol2.h (DITF_CONVERSION_LIBFUNCS): Redefine to 1.
        (SOLARIS_CONVERSION_LIBFUNCS): Rename to SUN_CONVERSION_LIBFUNCS.
        * config/sparc/sparc.c (sparc_init_libfuncs): Initialize optabs
        with _Q_qtoll, _Q_qtoull and _Q_lltoq if DITF_CONVERSION_LIBFUNCS.
        * config.gcc (sparc-*-linux*): Revert 2004-03-23 change.
        * config/sparc/t-linux64 (TARGET_LIBGCC2_CFLAGS): Likewise.
        * config/sparc/t-linux: Removed.

2004-04-01  Jakub Jelinek  <jakub@redhat.com>

        PR c++/14755
        * fold-const.c (fold) <EQ_EXPR>: Properly compute newconst in
        "bitfld++ == const" to "++bitfld == const + incr" transformations.

2004-04-01  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * expr.c (get_inner_reference): Use DECL_UNSIGNED, not TREE_UNSIGNED.
        * stor-layout.c (layout_decl): Likewise.
        * tree.c (get_narrower): Likewise and also use BIT_FIELD_REF_UNSIGNED.
        * fold-const.c (make_bit_field_ref): Use BIT_FIELD_REF_UNSIGNED.
        * print-tree.c (print_node): Handle various used of unsigned_flag.
        * tree.def (BIT_FIELD_REF): Update comment.
        * tree.h (TREE_UNSIGNED): Deleted.
        (DECL_UNSIGNED, BIT_FIELD_REF_UNSIGNED): New macros.

2004-03-31  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * builtins.c, c-aux-info.c, c-common.c, c-cppbuiltin.c, c-decl.c:
        Change most occurrences of TREE_UNSIGNED to TYPE_UNSIGNED.
        * c-format.c, c-opts.c, c-pretty-print.c, c-typeck.c: Likewise.
        * calls.c, convert.c, dbxout.c, dojump.c, dwarf2out.c: Likewise.
        * expmed.c, expr.c, fold-const.c, function.c, integrate.c: Likewise.
        * optabs.c, sdbout.c, stmt.c, stor-layout.c, tree-dump.c: Likewise.
        * tree.c, config/iq2000/iq2000.c, config/m32r/m32r.c: Likewise.
        * config/mips/mips.c, config/rs6000/rs6000.c: Likewise.
        * config/s390/s390.c, config/sparc/sparc.c, objc/objc-act.c: Likewise.
        * stor-layout.c (layout_type, case COMPLEX_TYPE): Test for
        REAL_TYPE, not INTEGER_TYPE.
        (layout_type, case VECTOR_TYPE): Simplify code.
        * tree.c (build_vector_type_for_mode): Remove dup unsigned setting.
        * tree.h: Update comments.
        (STRIP_NOPS): Use TYPE_UNSIGNED.
        (TYPE_UNSIGNED): New macro.
        (TYPE_TRAP_SIGNED): Remove now redundant check.
        (SAVE_EXPR_NOPLACEHOLDER): Don't use TREE_UNSIGNED.

2004-03-31  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.c (put_var_into_stack): Properly set orig_reg for indirect.

2004-03-31  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA):
        Add darwin-fpsave.asm, darwin-vecsave.asm,
        and darwin-world.asm.
        (TARGET_LIBGCC2_CFLAGS): Add -Wa,-force_cpusubtype_ALL
        as the asm files contain altivec instructions.
        * config/rs6000/darwin-fpsave.asm: New file.
        * config/rs6000/darwin-vecsave.asm: New file.
        * config/rs6000/darwin-world.asm: New file.

2004-03-31  Zack Weinberg  <zack@codesourcery.com>

        * gengtype-yacc.y (option, stringseq): Add missing
        terminating semicolon.

2004-03-30  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.md (tls_gd_32, tls_gd_64,
        tls_ld_32, tls_ld_64, tls_dtprel_32, tls_dtprel_64,
        tls_dtprel_ha_32, tls_dtprel_ha_64,
        tls_dtprel_lo_32, tls_dtprel_lo_64,
        tls_got_dtprel_64, tls_tprel_32, tls_tprel_64,
        tls_tprel_ha_32, tls_tprel_ha_64,
        tls_tprel_lo_32, tls_tprel_lo_64,
        tls_got_tprel_32, tls_got_tprel_64,
        tls_tls_32, tls_tls_64): Replace register_operand with
        gpc_reg_operand.

2004-03-30  Mostafa Hagog  <mustafa@il.ibm.com>

        * config/rs6000/rs6000.md (*ctrsi_internal1, *ctrsi_internal2,
        *ctrdi_internal1, *ctrdi_internal2, *ctrsi_internal3,
        *ctrsi_internal4, *ctrdi_internal3, *ctrdi_internal4,
        *ctrsi_internal5, *ctrsi_internal6, *ctrdi_internal5,
        *ctrdi_internal6): Replace register_operand with
        nonimmediate_operand.

2004-03-29  Fariborz Jahanian <fjahanian@apple.com>

        * fold-const.c (fold): Reassociate multiply expression
        with an adjacent non-multiply expression to use
        architecture's multiply-add instruction.

2004-03-30  Zack Weinberg  <zack@codesourcery.com>

        * gengtype.c (create_option): New function.
        * gengtype.h: Prototype it.
        * gengtype-yacc.y (stringseq): New rule.
        (option): Use create_option.  Add new bare ID production.  Use
        stringseq, not STRING directly.

        * alias.c, bitmap.c, c-decl.c, cgraph.h, cpplib.h, cselib.h
        * dwarf2out.c, emit-rtl.c, function.h, lists.c, tree.h
        * varray.h, config/alpha/alpha.c:
        Use new shorter form of GTY markers.

        * doc/gty.texi: Rewrite.

2004-03-30  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/darwin.c (machopic_function_base_name):
        Remove current_name and getting the name of the
        current function.

2004-03-30  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.md (thumb_jump): Reduce the backward branch
        range, and increase the forward branch range, to allow for
        the fact that the PC will be off by 4.

2004-03-30  Alan Modra  <amodra@bigpond.net.au>

        * .cvsignore: Add GPATH, GRTAGS, GSYMS and GTAGS (GNU GLOBAL)

2004-03-30  Hartmut Penner  <hpenner@de.ibm.com>

        * config/rs6000/rs6000.c (output_vec_const_move):
        Find all cases of EASY_VECTOR_15_ADD_SELF.
        (easy_vector_constant_add_self): Accept
        all vector constant loadable by vsplt* and vadd*.
        (easy_vector_same): Use easy_vector_splat_const.
        (easy_vector_const): Use easy_vector_splat_const.
        (easy_vector_splat_const): New function.
        (gen_easy_vector_constant_add_self): New function.

        * config/rs6000/rs6000-protos.c (gen_easy_vector_constant_add_self):
        New prototype.

        * config/rs6000/altivec.md (movv4si splitter): Change to
        emit move insn with halfed vector constant.
        (*movv8hi splitter): Likewise.
        (*movv16qi splitter): Likewise.

2004-03-30  Hartmut Penner  <hpenner@de.ibm.com>

        PR 11591
        * config/rs6000/rs6000.c (rs6000_legitimate_address):
        Allow any offset to argument pointer in no-strict case.

2004-03-30  Jan Hubicka  <jh@suse.cz>

        * toplev.c (backend_init): Add missing call to inint_optimization_passes.
        * passes.c (init_optimization_passes, finish_optimization_passes): Output cgraph
        dump file in non-unit-at-a-time mode.

2004-03-29  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h: Correct #ifdef to test for
        HAVE_AS_NO_MUL_BUG_ABORT_OPTION, not
        HAVE_AS_MUL_BUG_ABORT_OPTION.

2004-03-29  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * function.c (put_var_into_stack): If old RTL was ADDRESSOF, update
        the address inside the old RTL.

2004-03-28  Zack Weinberg  <zack@codesourcery.com>

        * c-decl.c: Verify that C_SIZEOF_STRUCT_LANG_IDENTIFIER is correct.
        (struct c_binding, struct c_scope): Add chain_next
        attributes to GTY markers.
        (struct lang_identifier, struct lang_tree_node): Define
        here...
        * c-tree.h: ... not here.  No longer need to declare struct
        c_binding either.  Do define C_SIZEOF_STRUCT_LANG_IDENTIFIER.
        * c-lang.c, objc/objc-lang.c: Set LANG_HOOKS_IDENTIFIER_SIZE
        to C_SIZEOF_STRUCT_LANG_IDENTIFIER.

        PR 14734, 11944
        * c-decl.c (get_parm_info): If error_mark_node is encountered
        in the bindings chain, unbind and discard it; don't abort.

2004-03-28  Olga Golovonevsky <olga@il.ibm.com>
            Dorit Naishlos <dorit@il.ibm.com>

        * config/rs6000/altivec.md: (andvv16qi3, andv8hi3, one_cmplv16qi2,
        one_cmplv8hi2, one_cmplv4si2, iorv16qi3, iorv8hi3,): New modelling.

2004-03-28  Stephane Carrez  <stcarrez@nerim.fr>

        * config/m68hc11/m68hc11-protos.h (m68hc11_page0_symbol_p): Declare.

        * config/m68hc11/m68hc11.c (m68hc11_handle_page0_attribute): New.
        (m68hc11_attribute_table): New attribute "page0" to mark a global
        variable as being allocated from within page0 section.
        (m68hc11_encode_label): New function.
        (m68hc11_strip_name_encoding): New function.
        (m68hc11_page0_symbol_p): New function.
        (m68hc11_indirect_p): Accept global variables marked in page0.
        (m68hc11_encode_section_info): Lookup "page0" attribute.

        * config/m68hc11/m68hc11.h (EXTRA_CONSTRAINT): 'R' constraint also
        represents access to page0 variables.

        * config/m68hc11/m68hc11.md ("*logicalsi3_zexthi"): Use gen_rtx_REG.
        ("*logicalsi3_silshl16_zext"): Likewise.
        ("*ashldi3_const32"): Likewise.
        (peephole2 ashift): Likewise.

2004-03-28  Joseph S. Myers  <jsm@polyomino.org.uk>

        * c-tree.h (C_DECL_REGISTER): New.
        * c-aux-info.c (gen_decl), c-decl.c (objc_mark_locals_volatile,
        finish_decl, grokdeclarator, get_parm_info), c-typeck.c
        (build_array_ref, c_mark_addressable): Set and use it.
        * c-decl.c (grokdeclarator), c-typeck.c (c_mark_addressable):
        Allow structures with volatile fields to be declared register.
        Don't check TREE_ADDRESSABLE before warning about taking address
        of register.
        * c-decl.c (finish_decl): Don't allow structures with volatile
        fields to be placed in named register.
        * doc/trouble.texi: Remove reference to structures with volatile
        fields in registers.

2004-03-27  Ulrich Weigand  <uweigand@de.ibm.com>

        * function.c (thread_prologue_and_epilogue): Move
        NOTE_INSN_FUNCTION_END and NOTE_INSN_FUNCTION_BEG notes
        before the epilogue.

2004-03-27  Ulrich Weigand  <uweigand@de.ibm.com>

        * expr.c (store_constructor): Use gen_int_mode to correctly
        sign-extend CONST_INT value.

2004-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtin-types.def (BT_WINT, BT_FN_INT_WINT, BT_FN_WINT_WINT): New.
        * builtins.def (DEF_C94_BUILTIN): New.  Add wctype builtins.
        * doc/extend.texi: Likewise.

2004-03-26  Diego Novillo  <dnovillo@redhat.com>

        * c-typeck.c (comptypes): Replace calls to TYPE_DOMAIN
          with TYPE_ORIG_SIZE_TYPE.

2004-03-25  Aldy Hernandez  <aldyh@redhat.com>

        PR 14219
        * c-typeck.c (build_binary_op): Do not allow comparisons of
        vectors.

2004-03-26  James A. Morrison  <ja2morri@uwaterloo.ca>

        * config.gcc: Remove sparc-tti-*.
        * config/sparc/pbd.h: Delete.

        * config/sparc/sol2.h: Remove note about Sun OS 4.x.
        * config/sparc/aout.h: Likewise.

        * config/sparc/sparc.h: Remove if 0'd code.
        * config/sparc/sparc.md (call): Remove if 0'd code.
        (call_value): Likewise.
        (nonlocal_goto): Likewise.
        (unimp_insn): Delete.

2004-03-25  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (tree_expr_nonnegative_p): Handle BIT_XOR_EXPR like
        BIT_IOR_EXPR; A^B is nonnegative when A and B are nonnegative.

2004-03-25  Richard Henderson  <rth@redhat.com>

        PR 11527
        * c-typeck.c (pop_init_level): Emit pending init elements earlier
        rather than later.

2004-03-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin): Fix error in last change.

2004-03-25  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h: Formatting fix.

2004-03-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def: Add ctype builtins.
        * doc/extend.texi: Likewise.

2004-03-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin): Add new builtin optimizations for
        sqrt and/or cbrt.
        * fold-const.c (fold): Likewise.

2004-03-25  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_always_hint): New variable.
        (rs6000_sched_groups): New variable.
        (processor_target_table): Add power5.
        (rs6000_override_options): Set rs6000_sched_insert_nops,
        rs6000_sched_costly_dep and rs6000_sched_restricted_insns_priority
        from rs6000_sched_groups.
        (output_cbranch): Use rs6000_always_hint.
        (rs6000_variable_issue): Use rs6000_sched_groups.
        (rs6000_adjust_cost): Add CPU_POWER5.
        (is_microcoded_insn): Use rs6000_sched_groups.
        (is_dispatch_slot_restricted): Use rs6000_sched_groups.
        Return 2 for POWER5 cracked instructions.
        (is_cracked_insn): Use rs6000_sched_groups.
        (is_branch_slot_insn): Use rs6000_sched_groups.
        (rs6000_issue_rate): Add CPU_POWER5.
        (rs6000_sched_finish): Use rs6000_sched_groups.
        (rs6000_rtx_costs): Add PROCESSOR_POWER5.
        * config/rs6000/rs6000.h (processor_type): Add PROCESSOR_POWER5.
        (DEFAULT_SCHED_COSTLY_DEP): Delete.
        (DEFAULT_RESTRICTED_INSNS_PRIORITY): Delete.
        (DEFAULT_SCHED_FINISH_NOP_INSERTION_SCHEME): Delete.
        * config/rs6000/rs6000.md (define_attr "cpu"): Add power5.
        * config/rs6000/power5.md: New file.
        * doc/invoke.texi: Add power5 option.

2004-03-25  Kazu Hirata  <kazu@cs.umass.edu>

        * cfgrtl.c, dbxout.c, tree.def, config/darwin.h,
        config/arm/arm.c, objc/objc-act.c: Fix comment typos.
        * doc/invoke.texi: Fix a typo.

2004-03-25  Kazu Hirata  <kazu@cs.umass.edu>

        PR optimization/9707.
        * stmt.c (emit_case_nodes): Emit equality comparisons instead
        of recursing if both children are single-valued cases with no
        children.

2004-03-25  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (vfp_print_multi): Remove.
        (arm_output_fldmx): New function.
        (vfp_emit_fstmx): Return block size, not insn. Add ARM10 VFPr1 bugfix.
        (arm_expand_prologue): Update to match.
        (arm_get_vfp_saved_size): New Function.
        (arm_get_frame_offsets): Use it.
        (arm_output_epilogue): Use new functions.

2004-03-24  Richard Henderson  <rth@redhat.com>

        * alias.c (alias_invariant, alias_invariant_size): Mark GTY.
        (reg_known_value, reg_known_value_size): Likewise; make static.
        (reg_known_equiv_p): Make static.
        (clear_reg_alias_info): Update for new indexing.
        (get_reg_known_value, set_reg_known_value): New.
        (get_reg_known_equiv_p, set_reg_known_equiv_p): New.
        (canon_rtx): Use them.
        (init_alias_analysis): Likewise.  Allocate reg_known_value with gc.
        Don't play queer offsetting games with reg_known_value and
        reg_known_equiv_p.
        (end_alias_analysis): Free reg_known_value with gc.
        * rtl.h (get_reg_known_value, get_reg_known_equiv_p): Declare.
        * sched-deps.c (reg_known_equiv_p, reg_known_value): Remove.
        (deps_may_trap_p, sched_analyze_1, sched_analyze_2): Use the new
        functions instead.

2004-03-24  Kazu Hirata  <kazu@cs.umass.edu>

        * dwarf2asm.c, loop.h, pretty-print.c, pretty-print.h,
        config/i386/mmintrin.h: Update copyright.

2004-03-24  Nathanael Nerode  <neroden@gcc.gnu.org>

        * configure.ac: Add --enable-werror-always (for top level bootstrap
        support).
        * configure: Regenerate.

2004-03-24  Ziemowit Laski  <zlaski@apple.com>

        * objc/objc-act.c (objc_comptypes): Treat comparisons
        between 'Class' and '<class> *' as explicitly invalid.

2004-03-24  David Edelsohn  <edelsohn@gnu.org>

        * doc/invoke.texi (-frename-registers: Add enabled at -O3.
        (-fprofile-values): Add enabled with profile-{generate,use}.
        (-fvpt): Same.
        (-ftracer): Add enabled with profile-use.
        (-funit-at-a-time): Add enabled at -O2,-O3.
        (-funroll-loops): Add enabled with profile-use.
        (-funswitch-loops): Add enabled with profile-use.  Remove duplicates.
        (max-gcse-passes): Mention default.
        (max-cse-path-length): Mention default.

2004-03-24  Nathanael Nerode  <neroden@gcc.gnu.org>

        * Makefile.in (STRICT2_WARN): Reorder.
        * configure.ac: Check for -Wold-style-definition, and use it
        in strict1_warn if it's available.
        * configure: Regnerate.

2004-03-24  Paul Brook  <paul@nowt.org>

        * config.gcc <arm>: Add --with-abi=
        * config/arm/arm-protos.h (arm_get_frame_size, thumb_get_frame_size,
        thumb_far_jump_used): Remove prototypes.
        (arm_needs_doubleword_align): Add prototype.
        (thumb_compute_initial_elimination_offset): Ditto.
        * config/arm/arm.c (arm_get_frame_offsets): New function.
        (use_return_insn, output_return_instruction, arm_output_epilogue,
        arm_output_function_epilogue, arm_compute_initial_elimination_offset,
        arm_expand_prologue, thumb_expand_epilogue): Use it.
        (arm_abi, target_abi_name, all_arm_abis): New variables.
        (arm_override_options): Set them.  Set structure padding for AAPCS.
        (arm_return_in_memory): Update ABI check.
        (arm_init_cumulative_args): Initialize can_split.
        (arm_needs_doubleword_align): New function.
        (arm_function_arg): Don't split args after pushing to stack. Handle
        doubleword/even reg alignment.
        (arm_va_arg): Handle all doubleword aligned args.
        (add_minpoolforward ref, dump_minpool, push_minpool_fix): Align based
        on ABI, not CPU.
        (arm_compute_save_reg0_reg12_mask): Fix comment.
        (thumb_get_frame_size, thumb_get_frame_size): Remove.
        (thumb_jump_far_used_p): Remove superfluous argument.  Return save
        value for alignment.
        (thumb_unexpanded_epilogue, thumb_output_function_prologue): Change
        to match.
        (thumb_compute_initial_elimination_offset): New function.
        (thumb_expand_prologue): Use arm_get_frame_offsets.  Remove
        unneccessary rounding.
        * config/arm/arm.h (target_abi_name): Declare.
        (ARM_DOUBLEWORD_ALIGN, DOUBLEWORD_ALIGNMENT, TARGET_IWMMXT_ABI,
        arm_abi_type, ARM_DEFAULT_ABI): Define.
        (ARM_FLAG_ATPCS): Remove.
        (TARGET_OPTIONS, OPTION_DEFAULT_SPECS): Add -mabi=.
        (BIGGEST_ALIGNMENT, PREFERRED_STACK_BOUNDARY, STACK_BOUNDARY): Use it.
        (ADJUST_FIELD_ALIGN, DATA_ALIGNMENT, LOCAL_ALIGNMENT,
        TYPE_NEEDS_IWMMXT_ALIGNMENT): Remove.
        (LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P, FUNCTION_ARG_REGNO_P):
        Contitionalize on ABI, not CPU.
        (struct arm_stack_offsets): Define.
        (struct machine_function): Add stack_offsets.  Remove frame_size.
        (FUNCTION_ARG_PARTIAL_NREGS): Don't split if previous args have been
        pushed.
        (FUNCTION_ARG_ADVANCE, FUNCTION_ARG_BOUNDARY): Handle general
        doubleword alignment.
        (THUMB_INITIAL_ELIMINATION_OFFSET,
        ARM_INITIAL_ELIMINATION_OFFSET): Remove.
        (INITIAL_ELIMINATION_OFFSET): Call functions directly.
        * config/arm/arm.md (align_8): Enable for all targets.
        * config/arm/netbsd-elf.h (TARGET_DEFAULT): Remove TARGET_ATPCS.
        (ARM_DEFAULT_ABI): Define.
        * doc/invoke.texi <ARM>: Document -mabi=. Update documentation for
        -mstructure-size-boundary.

2004-03-24  Nathanael Nerode  <neroden@gcc.gnu.org>

        * configure.ac: Check for -Wno-variadic-macros; don't use
        -pedantic (in stage 1 or a simple 'make all') unless it's available,
        and if it's available, use it.  Also, clean up check for
        -Wno-long-long.
        * configure: Regenerate.

2004-03-24  Richard Sandiford  <rsandifo@redhat.com>

        * config.gcc (mips64vr-*-elf*, mips64vrel-*-elf*): Remove tm_defines.
        * config/mips/vr.h (DEFAULT_VR_ARCH): New macro, defined to vr4130.
        (MULTILIB_DEFAULTS): Use it.
        (MIPS_CPU_STRING_DEFAULT): Remove.
        (MIPS_ABI_DEFAULT, MIPS_MARCH_CONTROLS_SOFT_FLOAT): Define.
        (DRIVER_SELF_SPECS): Make -mfix-vr4122-bugs imply -march=vr4120.  Make
        EABI64 -mlong32 the default ABI.  Enforce the default architecture.
        * config/mips/t-vr (MULTILIB_OPTIONS): Add mfix-vr4122-bugs,
        march=vr4130, march=vr4300, march=vr5000 and march=vr5500.
        (MULTILIB_MATCHES): Use -mfix-vr4122-bugs multilibs for -march=vr4120.
        (MULTILIB_EXCEPTIONS): Change choice of multilibs.  Update comments
        accordingly.

2004-03-24  DJ Delorie  <dj@redhat.com>
            Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (MASK_FIX_VR4122, TARGET_FIX_VR4122): New macros.
        (TARGET_SWITCHES): Add -mfix-vr4122-bugs and -mno-fix-vr4122-bugs.
        (ASM_SPEC): Pass down -mfix-vr4122-bugs.
        * config/mips/mips.c (mips_avoid_hazards): Don't emit whole functions
        in .set noreorder and .set nomacro if TARGET_FIX_VR4122.
        (mips_init_libfuncs): Use special functions for divsi3 and modsi3
        if TARGET_FIX_VR4122.
        * config/mips/mips.md (define_attr length): Account for nops inserted
        after macc and dmult when using -mfix-vr4122-bugs.
        (umuldi3_highpart, divmodsi4, divmoddi4): Disable if TARGET_FIX_VR4122.
        * config/mips/t-vr (LIB2FUNCS_STATIC_EXTRA): Define instead of
        LIB2FUNCS_EXTRA.  Add config/mips/vr4122-div.S.
        * config/mips/vr4122-div.S: New file.
        * doc/invoke.texi: Document -mfix-vr4122-bugs.

2004-03-24  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.h (PROCESSOR_R4130): New processor_type.
        (TARGET_MIPS4130): New macro.
        (ISA_HAS_MACC): Return true if TARGET_MIPS4130 && !TARGET_MIPS16.
        * config/mips/mips.c (mips_cpu_info_table): Add a vr4130 entry.
        (override_options): Extend MIPS_MARCH_CONTROLS_SOFT_FLOAT to deal
        with PROCESSOR_R4130.
        * config/mips/mips.md (define_attr cpu): Add r4130.
        * doc/invoke.texi: Document vr4130 as a supported MIPS architecture.

2004-03-24  Maciej W. Rozycki  <macro@ds2.pg.gda.pl>
            Richard Sandiford  <rsandifo@redhat.com>

        * doc/invoke.texi: Apply missed hunk from 2004-03-03 change.

2004-03-24  Alexandre Oliva  <aoliva@redhat.com>

        PR preprocessor/14438
        * cpplib.c (do_pragma): Remove line_change call after pragma
        handler.

2004-03-23  Ian Lance Taylor  <ian@wasabisystems.com>

        * doc/extend.texi (ARM Built-in Functions): Replace with correct
        declarations.

2004-03-23  Roger Sayle  <roger@eyesopen.com>

        * reg-stack.c (get_true_reg): Handle FLOAT_TRUNCATE like FLOAT_EXTEND
        if flag_unsafe_math_optimizations.
        * config/i386/i386.md (truncdfsf2): If flag_unsafe_math_optimizations
        and TARGET_80387 expand using truncdfsf2_noop pattern.
        (truncxfsf2): Likewise using truncxfsf2_noop.
        (truncxfdf2): Likewise using truncxfdf2_noop.
        (truncdfsf2_noop, truncxfsf2_noop, truncxfdf2_noop): New patterns.

2004-03-23  Ziemowit Laski  <zlaski@apple.com>

        * hooks.c (hook_constcharptr_tree_null): New hook.
        * hooks.h (hook_constcharptr_tree_null): New prototype.
        * target-def.h (TARGET_MANGLE_FUNDAMENTAL_TYPE): New target hook.
        * target.h (mangle_fundamental_type): New target hook.
        * config/rs6000/rs6000.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Point
        target hook at rs6000_mangle_fundamental_type.
        (rs6000_mangle_fundamental_type): New function.
        * doc/tm.texi (TARGET_MANGLE_FUNDAMENTAL_TYPE): Document.

2004-03-23  Zack Weinberg  <zack@codesourcery.com>

        PR 12267, 12391, 12560, 13129, 14114, 14133
        * c-tree.h: Forward declare struct c_binding.  Declare
        c_override_bindings_to_false.  Update prototypes.
        (struct lang_identifier): Update comments.  Change fields to be
        struct c_binding *.
        (IDENTIFIER_SYMBOL_VALUE, IDENTIFIER_TAG_VALUE)
        (IDENTIFIER_LABEL_VALUE, C_DECL_INVISIBLE)
        (KEEP_NO, KEEP_YES, KEEP_MAYBE): Delete.
        (C_DECL_IN_EXTERNAL_SCOPE, C_DECL_DECLARED_BUILTIN): New.
        * c-common.h: Update prototypes.
        * c-decl.c (struct c_scope): Update commentary.  Remove names,
        names_last, parms, parms_last, tags, and shadowed fields.  Add
        bindings and depth fields.
        (scope_freelist): Move to more appropriate location.
        (c_print_identifier): Update for changes to struct lang_identifier.
        (objc_mark_locals_volatile): Update for new bindings structures.
        (global_bindings_p): Honor c_override_global_bindings_to_false.
        (pushlevel): Rename to push_scope; take no arguments; use the
        scope_freelist; initialize scope->depth and check for overflow.
        (poplevel): Rename to pop_scope; totally rewritten for new bindings
        structures.
        (diagnose_mismatched_decls): Use C_DECL_DECLARED_BUILTIN, not
        C_DECL_INVISIBLE, for certain decisions.  Adjust some diagnostics.
        Improve some commentary.  Adjust handling of forward parm decls.
        (merge_decls): Set C_DECL_DECLARED_BUILTIN when appropriate.
        Preserve C_DECL_IN_EXTERNAL_SCOPE.
        (warn_if_shadowing): Correct indentation.  Improve diagnostics.
        (pushdecl): Remove unnecessary assertion.  Short-circuit anonymous
        decls.  Rewrite for new bindings structures.  Improve commentary.
        Eliminate the copy_node call.
        (implicit_decl_warning): Use the "diag" idiom (as seen in
        locate_old_decl) to reduce code duplication; call locate_old_decl
        if appropriate.  Relocate to remove need for forward declaration.
        (implicitly_declare): Adjust for new bindings structures.  Kludge
        around Objective-C not-really-builtin functions.
        (undeclared_variable): Improve diagnostics.  If current_function_decl
        is nonnull but current_function_scope is null, use current_scope.
        Use bind.
        (lookup_tag): Adjust for new bindings structures.  Kludge around
        Objective-C's tag declarations that wind up in the external scope.
        (lookup_name): Adjust for new bindings structures.  Kludge around
        c-common.c's pseudo-typedefs that wind up in the external scope.
        (lookup_name_current_level): Rename lookup_name_in_scope; take a
        second argument indicating the scope to examine; rewrite for
        new bindings structures.
        (c_init_decl_processing): Adjust for renamed functions.  Do not
        initialize current_file_decl, first_builtin_decl, last_builtin_decl.
        First scope pushed is the external scope, not the global scope.
        (builtin_function): Use bind, not pushdecl.  Adjust other bits
        for new data structures.  Keep track of builtins that should be
        made visible automatically.
        (start_decl): Adjust diagnostics.  Remove unnecessary call to
        expand_decl.
        (grokparms): Return 0 if arg_types is error_mark_node.
        (get_parm_info): Rename "void_at_end" argument to "ellipsis", with
        reversed sense.  Rewrite for new bindings structures.  Do not
        leave any decls in the scope, to prevent pop_scope from doing
        contradictory things with them.
        (finish_struct, finish_enum): Remove redundant diagnostics.
        (build_enumerator): Don't cascade diagnostics for error_mark_node.
        Mark location where -pedantic changes the meaning of the program.
        (store_parm_decls_newstyle, store_parm_decls_oldstyle): Load the
        parameter decls into the function's scope structure using bind.
        Warn here about function definitions in the wrong style.
        Adjust diagnostics.
        (store_parm_decls): Correct the determination of whether a
        function was defined with a prototype.
        (c_write_global_declarations): Operate on all file decls and on
        the external scope.  Split body of the loop to...
        (c_write_global_declarations_1): ... this new function, to avoid
        code duplication.
        (truly_local_externals, first_builtin_decl, last_builtin_decl)
        (make_scope, pop_scope, in_parm_level_p, set_block)
        (any_external_decl, record_external_decl, bind_label, getdecls)
        (link_hash_hash, link_hash_eq, merge_translation_unit_decls)
        (c_reset_state): Delete.
        (visible_builtins, c_override_global_bindings_to_false)
        (c_binding, I_SYMBOL_BINDING, I_SYMBOL_DECL, I_TAG_BINDING)
        (I_TAG_DECL, I_LABEL_BINDING, I_LABEL_DECL, file_scope)
        (external_scope, binding_freelist, bind, free_binding_and_advance)
        (push_file_scope, pop_file_scope): New.
        (pushtag, pushdecl_top_level, lookup_label, declare_label)
        (define_label, c_make_fname_decl, finish_decl)
        (mark_forward_parm_decls, build_compound_literal)
        (grokdeclarator, start_function, check_for_loop_decls)
        (identifier_global_value, record_builtin_type): Minor adjustments
        for new bindings structures.  Improve diagnostics and commentary.
        * c-objc-common.c (start_cdtor, finish_cdtor): Adjust calls to
        pushlevel/poplevel respectively.
        (c_objc_common_finish_file): Don't call merge_translation_unit_decls.
        * c-opts.c (c_common_parse_file): Remove spurious ATTRIBUTE_UNUSED.
        Warn about YYDEBUG not being defined only if -dy.  Remove no-longer-
        correct loop over multiple translation units; call fatal_error if
        requested to compile more than one file at once.  (This disables
        IMA temporarily - an up-front error being preferable to a crash.)
        * c-parse.in (pushlevel, poplevel rules): Rename push_scope, pop_scope.
        (all actions): Adjust calls to pushlevel/poplevel.
        (parsing_iso_function_signature): Delete.
        (extdef_1): Fold into extdef.
        (old_style_parm_decls_1): Fold into old_style_parm_decls.  Don't
        warn here about function definitions in the wrong style.
        (after_tyle_declarator, parm_declarator_starttypename)
        (parm_declarator_nostarttypename, notype_declarator): Remove
        commented-out productions.
        (parmlist_1, parmlist_2): Use make_node, not tree_cons, to create
        an empty TREE_LIST node.  Adjust calls to get_parm_info.
        (parmlist_2 : ELLIPSIS): Tag the arg-info block with error_mark_node
        to suppress -Wold-style-definition after this error.
        (c_parse_file): Don't clear the binding stack or call
        finish_fname_decls here.  Correct comment.
        * c-typeck.c (same_translation_unit_p): Export.
        (common_type): Use c_override_global_bindings_to_false, not
        pushlevel/poplevel/declare_parm_level.
        * c-lang.c: Override LANG_HOOKS_CLEAR_BINDING_STACK,
        LANG_HOOKS_PUSHLEVEL, LANG_HOOKS_POPLEVEL, LANG_HOOKS_SET_BLOCK,
        and LANG_HOOKS_GETDECLS with do-nothing stubs.
        * objc/objc-lang.c: Likewise.
        * objc/objc-act.c: Adjust all calls to pushlevel, poplevel,
        get_parm_info.
        (OBJC_VOID_AT_END): Delete; replace all uses
        with void_list_node.
        (generate_forward_declaration_to_string_table): Delete.
        * objc/objc-act.h (OCTI_STRG_DECL, UOBJC_STRINGS_decl): Delete.

        * coverage.c (create_coverage): Don't pushdecl anything.
        * langhooks.c (lhd_clear_binding_stack): Call
        lang_hooks.decls.poplevel, not poplevel.
        * tree.c (list_length): If ENABLE_TREE_CHECKING, abort on a
        circular list rather than going into an infinite loop.

2004-03-23  Olivier Hainque  <hainque@act-europe.fr>

        * optabs.c (expand_binop): When synthesizing double word rotates
        from single word shifts, use a new register target if the provided
        target is not a REG already.

2004-03-23  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (get_alias_set): Add support for TYPE_REF_CAN_ALIAS_ALL.
        * c-common.c (handle_mode_attribute): Add extra arg to
        build_pointer_type_for_mode and build_reference_type_for_mode.
        * c-typeck.c (build_c_cast): Only look at TREE_CONSTANT_OVERFLOW
        for INTEGER_CST.
        * tree.c (build_pointer_type_for_mode): Add arg CAN_ALIAS_ALL.
        Chain pointers via TYPE_NEXT_PTR_TO.
        (build_reference_type_for_mode): Similarly.
        (build_type_no_quals): Add extra arg to build_pointer_type_for_mode
        and build_reference_type_for_mode.
        (tree_check4_failed): New function.
        * tree.h (TREE_CHECK4, PTR_OR_REF_CHECK): New macros.
        (TYPE_REF_CAN_ALIAS_ALL, TYPE_NEXT_PTR_TO, TYPE_NEXT_REF_TO): Likewise.
        (TREE_NO_UNSUED_WARNING, TREE_VIA_VIRTUAL, TREE_CONSTANT_OVERFLOW):
        Add check.

2004-03-23  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (tree_expr_nonnegative_p): A&B is nonnegative when
        A is nonnegative or B is nonnegative.  Similarly A|B is nonnegative
        when both A and B are nonnegative.
        (tree_expr_nonzero_p): A|B is nonzero when A is nonzero or B is
        nonzero.

2004-03-23  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold): Remove cases for INTEGER_CST, REAL_CST,
        VECTOR_CST, STRING_CST, COMPLEX_CST, and CONSTRUCTOR.

2004-03-23  Kazu Hirata  <kazu@cs.umass.edu>

        PR optimization/14669
        * fold-const.c (fold): Only unwiden integer comparisons for equality
        and inequality operators, or when the signedness doesn't change.

2004-03-23  Jakub Jelinek  <jakub@redhat.com>

        * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
        * config/sparc/t-linux64 (TARGET_LIBGCC2_CFLAGS): Set.
        * config/sparc/t-linux: New file.

2004-03-23  Richard Sandiford  <rsandifo@redhat.com>

        * gcse.c (can_assign_to_reg_p): New function, split out from...
        (want_to_gcse_p): ...here.
        (compute_ld_motion_mems): Use can_assign_to_reg_p to validate
        the rhs of a store.

2004-03-22  Diego Novillo  <dnovillo@redhat.com>

        * c-typeck.c (same_translation_unit_p): Fix pasto.

2004-03-22  David Edelsohn  <edelsohn@gnu.org>

        * params.def (PARAM_MAX_SCHED_REGION_BLOCKS): New.
        (PARAM_MAX_SCHED_REGION_INSNS): New.
        * sched-rgn.c: Include params.h
        (MAX_RGN_BLOCKS): Delete.
        (MAX_RGN_INSNS): Delete.
        (too_large): Return bool.  Convert to PARAM_VALUE.
        * Makefile.in (sched-rgn.o): Depend on $(PARAMS_H).
        * doc/invoke.texi (param): Document max-sched-region-blocks and
        max-sched-region-insns.

2004-03-22  Joel Brobecker  <brobecker@gnat.com>

        * dwarf2out.c (is_subrange_type): Do not emit a subrange_type DIE
        for base types.

2004-03-22  Joel Brobecker  <brobecker@gnat.com>

        * dwarf2out.c (is_subrange_type): Minor code rework. No behavior
        change.

2004-03-22  Jakub Jelinek  <jakub@redhat.com>

        PR c/14069
        * c-decl.c (finish_struct): Change type of incorrect flexible array
        field into error_mark_node.

2004-03-22  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/14580
        * config/rs6000/rs6000.c (symbol_ref_operand): Reject symbols
        who are not local for Darwin PIC.

2004-03-22  Ulrich Weigand  <uweigand@de.ibm.com>

        * regrename.c (regrename_optimize): Set regs_ever_live for all
        registers introduced as replacement.

2004-03-22  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR middle-end/14470
        * expr.c (mark_queue): New function.
        (emit_insns_enqueued_after_mark): New function replacing
        emit_queue.  Clear the body of emitted queued insns.
        (emit_queue): Call emit_insns_enqueued_after_mark.
        (store_expr): Mark the increment queue on entry.  Emit
        only the incrementations queued when expanding the source.

2004-03-22  Nathanael Nerode  <neroden@gcc.gnu.org>

        * configure.ac: Allow --disable-coverage-flags (for the future benefit
        of top level bootstrap, and consistency).  Reindent.
        * configure: Regenerate.

2004-03-21  Kazu Hirata  <kazu@cs.umass.edu>

        * bt-load.c, builtins.c, cfghooks.c, cfgrtl.c, gcse.c,
        ggc-page.c, integrate.c, var-tracking.c, web.c: Remove
        unnecessary casts.

2004-03-22  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/14291
        * gcov-io.h (gcov_truncate): Define ftruncate as _chsize for
        __MINGW32__.

2004-03-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("*doloop_si"): Change predicate for operand 2
        to nonimmediate_operand.
        ("*doloop_di"): Likewise.

2004-03-21  Alexandre Oliva  <aoliva@redhat.com>

        * real.h (struct real_value): Use the same type for all
        bitfields.  Rename exp to uexp.
        (REAL_EXP, SET_REAL_EXP): New accessor macros for uexp.
        Adjust all uses of exp...
        * builtins.c: ... here, ...
        * emit-rtl.c: ... here, and ...
        * real.c: ... and here.

2004-03-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * pretty-print.c (pp_base_maybe_space): New function.
        * pretty-print.h (pp_base_maybe_space): Declare.
        (pp_maybe_space): New macro.

2004-03-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("addti3", "subti3"): New insns and splitters.

2004-03-21  Ulrich Weigand  <uweigand@de.ibm.com>

        * expmed.c (choose_mult_variant): Pass MULT_COST as argument instead
        of using register multiplication cost.
        (expand_mult): Adapt choose_mult_variant call.
        (expand_mult_highpart): Call choose_mult_variant with WIDER_MODE
        of MODE; pass appropriate cost bound.  Adjust result when
        performing signed multiplication by a negative constant.
        Don't use intermediate modes larger than word_mode.

2004-03-21  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * alias.c (get_alias_set): Remove handling of PLACEHOLDER_EXPR.
        * emit-rtl.c (component_ref_for_mem_expr): Likewise.
        (set_mem_attributes_minus_bitpos): Call SUBSTITUTE_PLACEHOLDER_IN_EXPR.
        * explow.c (expr_size): Likewise.
        * expr.h (placeholder_list, find_placeholder): Deleted.
        * expr.c (store_constructor): Likewise.
        (get_inner_reference): Likewise.  Also don't call find_placeholder.
        (placeholder_list, find_placeholder): Deleted.
        (is_aligning_offset): Don't handle WITH_RECORD_EXPR, PLACEHOLDER_EXPR.
        (expand_expr_real, cases PLACEHOLDER_EXPR, WITH_RECORD_EXPR): Likewise.
        (highest_pow2_factor, case WITH_RECORD_EXPR): Remove.
        * dojump.c (do_jump, case WITH_RECORD_EXPR): Likewise.
        * dwarf2out.c (loc_descriptor_from_tree, case WITH_RECORD_EXPR):
        Likewise.
        * fold-const.c (invert_truthvalue, case WITH_RECORD_EXPR): Likewise.
        (extract_muldiv, case WITH_RECORD_EXPR): Likewise.
        * tree.c (expr_align, case WITH_RECORD_EXPR): Likewise.
        (contains_placeholder_p): Don't handle WITH_RECORD_EXPR.
        Clean up by using first_rtl_op.
        (substitute_in_expr): Use SUBSTITUTE_IN_EXPR for recursive call.
        (substitute_placeholder_in_expr): New function.
        * tree.def (WITH_RECORD_EXPR): Deleted.
        * tree.h (SUBSTITUTE_IN_EXPR, SUBSTITUTE_PLACEHOLDER_IN_EXPR): New.
        (substitute_placeholder_in_expr): New.

2004-03-21  Andrew Pinski  <pinskia@gcc.gnu.org>

        * dojump.c (prefer_and_bit_test): Fix which part of
        the and_test is replaced.

2004-03-21  Joseph S. Myers  <jsm@polyomino.org.uk>

        * frontends.texi: Add missing line.

2004-03-21  Zack Weinberg  <zack@codesourcery.com>
            Chris Devers  <cdevers@pobox.com>
            Joseph S. Myers  <jsm@polyomino.org.uk>

        * doc/frontends.texi: Rewrite.
        * doc/gcc.texi: Update last modification date.

2004-03-21  Josef Zlomek  <zlomekj@suse.cz>

        * cfgrtl.c (cfg_layout_redirect_edge_and_branch): Print the debug
        message before redirecting the edge.

2004-03-20  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>

        * emit-rtl.c (set_mem_attributes_minus_bitpos): Set MEM_POINTER
        flag.
        * explow.c (force_not_mem): Set REG_POINTER flag according to
        MEM_POINTER one.
        * rtl.h (MEM_POINTER): New macro.
        (struct rtx_def): Use integrated for MEM_SCALAR_P and frame_related
        for MEM_POINTER.

2004-03-20  Roger Sayle  <roger@eyesopen.com>

        PR target/13889
        * cse.c (fold_rtx): Avoid substituting constants into unary
        conversion operations.

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold): Replace "expr" with "t".

2004-03-20  Ian Lance Taylor  <ian@wasabisystems.com>

        PR c/12373
        * c-typeck.c (tagged_types_tu_compatible_p): Don't use
        DECL_ORIGINAL_TYPE if there isn't one.

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold): Replace "final_type" with "type".
        Remove variable "final_type".

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold): Constify "type".
        Replace "TREE_TYPE (t)" with "type".

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * bb-reorder.c, bt-load.c, c-decl.c, cfgcleanup.c, coverage.c,
        dwarf2asm.c, ifcvt.c, stor-layout.c, varasm.c: Replace calls
        via (*targetm.foo) () with targetm.foo ().

2004-03-20  Joseph S. Myers  <jsm@polyomino.org.uk>

        PR other/14630
        * doc/install.texi: Add info directory category and entry.

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold): Replace "t" with "tem" where it is used
        as a temporary variable.  Remove "orig_t" and all of its uses.

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold): Remove variable "invert".
        Move the handling of relational expressions that can be folded
        to a constant ...
        (fold_relational_const): ... here.
        (tree_expr_nonzero_p): New.

2004-03-20  Joseph S. Myers  <jsm@polyomino.org.uk>

        PR c/14635
        * builtins.def (nan, nanf, nanl, nans, nansf, nansl): Change to
        DEF_GCC_BUILTIN.

2004-03-20  Richard Sandiford  <rsandifo@redhat.com>

        * Makefile.in (dojump.o): Depend on $(GGC_H) and dojump.h.
        (GTFILES): Add $(srcdir)/dojump.h.
        (gt-dojump.h): New dependency.
        * dojump.c (and_reg, and_test, shift_test): New static variables.
        (prefer_and_bit_test): New function.
        (do_jump): Use it to choose between (X & (1 << C)) and (X >> C) & 1.

2004-03-20  Kazu Hirata  <kazu@cs.umass.edu>

        * c-common.c, cfgcleanup.c, cgraphunit.c, c-pretty-print.c,
        expmed.c, ggc-common.c, jump.c, passes.c, recog.c, regmove.c,
        reorg.c, tree.h: Fix comment typos.

2004-03-19  Kazu Hirata  <kazu@cs.umass.edu>

        * alias.c, attribs.c, bt-load.c, builtins.c, c-common.c,
        c-decl.c, c-objc-common.c, c-typeck.c, calls.c, cfglayout.c,
        cse.c, dbxout.c, dwarf2out.c, except.c, final.c,
        haifa-sched.c, integrate.c, passes.c, rtlanal.c, sched-rgn.c,
        sched-vis.c, simplify-rtx.c, stor-layout.c, tree.c, varasm.c,
        vmsdbgout.c: Replace calls via (*targetm.foo) () with
        targetm.foo ().

2004-03-19  Ziemowit Laski  <zlaski@apple.com>

        * config/rs6000/altivec.h (vec_dst, vec_dstst, vec_dststt,
        vec_dstt, vec_sld, vec_splat): Add prototypes, marked with
        always_inline attribute.
        * config/rs6000/rs6000.c (altivec_expand_dst_builtin):
        Treat expansion as completed even if literal argument is
        invalid (so that other expansions are not tried in vain).

2004-03-19  Kazu Hirata  <kazu@cs.umass.edu>

        * loop-doloop.c (add_test): Replace GEN_INT (0) with
        const0_rtx.

2004-03-19  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (fold) <ABS_EXPR>: Move the handling of constants
        ...
        (fold_abs_const): ... here.

2004-03-19  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.h (TYPE_ARRAY_MAX_SIZE): Use type.maxval directly.

2004-03-19  Denis Chertykov  <denisc@overta.ru>

        PR target/11520
        * config/avr/avr.md ("call_insn"): Handle explicit integer
        specially.
        (call_value_insn): Likewise.

2004-03-19  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.c (substitute_in_expr): Rewrite to simplify and be more generic.

2004-03-19  Kazu Hirata  <kazu@cs.umass.edu>

        * fold-const.c (negate_expr): Move the handling of constants
        ...
        (fold_negate_const): ... here.

2004-03-19  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * langhooks-def.h (LANG_HOOKS_HASH_TYPES): New macro and hook.
        * langhooks.h (struct lang_hooks_for_types): New field hash_types.
        * tree.c (debug_no_type_hash): Deleted.
        (type_hash_canon): Abort if passed a variant.
        Check lang_hooks.types.hash_types.
        (build_type_no_quals): Copy mode of POINTER_TYPE and REFERENCE_TYPE.
        (build_array_type): Remove unnecessary allocation of pointer type.
        (build_complex_type): Properly qualify resulting type.

2004-03-19  Paolo Bonzini  <bonzini@gnu.org>

        * config/rs6000/rs6000.c (rs6000_init_builtins): Fix typo.

2004-03-19  Richard Sandiford  <rsandifo@redhat.com>

        * expmed.c (choose_mult_variant, expand_mult_const): New, split from...
        (expand_mult): ...here.
        (extract_high_half): New, split out from expand_mult_highpart.
        (expand_highpart_optab): Likewise.  Don't clobber target prematurely.
        (expand_highpart): Evaluate the cost of a shift/add sequence,
        then see if any of the specialized optabs are cheaper.

2004-03-18  Ian Lance Taylor  <ian@wasabisystems.com>

        * mklibgcc.in: Remove obsolete MAYBE_USE_COLLECT2.

2004-03-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_real): Add more math builtins.

2004-03-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_real): Reformat using switch stmt.

2004-03-18  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (pointer_int_sum): Do not complain about using
        pointers to pointers-to-members.

2004-03-18  Kazu Hirata  <kazu@cs.umass.edu>

        * system.h (MD_ASM_CLOBBERS): Move to "Old target macros that
        have moved to the target hooks structure".

2004-03-18  James E Wilson  <wilson@specifixinc.com>

        * config/mips/mips.md (type): Split move into arith and fmove.  Split
        hilo into mthilo and mfhilo.  Add trap.  Delete icmp.  Fix all uses.
        * config/mips/5400.md (ir_vr54_hilo, ir_vr54_arith, ir_vr54_fabs):
        Likewise.
        * config/mips/5500.md (ir_vr55_hilo, ir_vr55_arith, ir_vr55_fabs):
        Likewise.
        * config/mips/7000.md (rm7_int_other, rm7_mthilo, rm7_mfhilo,
        rm7_fp_quick): Likewise.
        * config/mips/9000.md (rm9k_int, rm9k_mfhilo, rm9k_mthilo,
        rm9k_fquick): Likewise.
        * config/mips/sr71k.md (ir_sr70_hilo, ir_sr70_arith, ir_sr70_fabs):
        Likewise.
        (ir_sr70_icmp): Delete.

2004-03-18  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

        * tree.h (TREE_CHECK2, TREE_CHECK3, TREE_CHECK5): New macros.
        (tree_check2_failed, tree_check3_failed, tree_check5_failed): New decl.
        (FUNC_OR_METHOD_CHECK, SET_ARRAY_OR_VECTOR_CHECK): New macros.
        (REC_OR_UNION_CHECK, NUMERICAL_TYPE_CHECK): Likewise.
        (TYPE_VALUES, TYPE_DOMAIN, TYPE_FIELDS, TYPE_METHODS, TYPE_VFIELD):
        Protect with proper check.
        (TYPE_ARG_TYPES, TYPE_METHOD_BASETYPE, TYPE_OFFSET_BASETYPE): Likewise.
        (TYPE_MIN_VALUE, TYPE_MAX_VALUE): Likewise.
        * tree.c (type_hash_eq): Rewrite to access proper fields for each type.
        (tree_check2_failed, tree_check3_failed, tree_check5_failed): New.
        * c-typeck.c (build_array_ref): Use TYPE_DOMAIN, not TYPE_VALUES.
        * dwarf2out.c (gen_enumeration_type_die): Use TYPE_VALUES,
        not TYPE_FIELDS.
        * stor-layout.c (set_sizetype): Use TYPE_ORIG_SIZE_TYPE.

2004-03-18  Mostafa Hagog  <mustafa@il.ibm.com>

        * gcse.c (eliminate_partially_redundant_loads): Reject change if
        dest is set between beginning and current insn.

2004-03-18  Mark Mitchell  <mark@codesourcery.com>

        * c-decl.c (grokdeclarator): Do not complain about redeclaring
        visible "static" identifiers "extern" in a local scope.
        * dwarf2out.c (loc_descriptor_from_tree): Handle pre- and
        post-increments/decrements.

2004-03-18  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (current_function_arg_words): Delete.
        (xtensa_builtin_saveregs): Use current_function_args_info.arg_words.
        (xtensa_va_start): Remove assignment to current_function_arg_words.

2004-03-18  Richard Sandiford  <rsandifo@redhat.com>

        * alias.c (record_set): Detect the case where a register is assigned
        a new value that has the same base term as the old one.

2004-03-18  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>

        * doloop.c: Removed.
        * loop-doloop.c: New file.
        * Makefile.in (doloop.o): Remove.
        (loop-doloop.o): New.
        * cfgloop.h (get_loop_level, doloop_optimize_loops): Declare.
        * cfgloopanal.c (get_loop_level): New function.
        * loop-iv.c (iv_number_of_iterations): Handle case when loop
        is leaved immediatelly.
        * loop.c (strength_reduce): Do not call doloop optimization.
        * loop.h (LOOP_BCT): Removed.
        * passes.c (rest_of_handle_loop_optimize): Do not use LOOP_BCT.
        (rest_of_handle_loop2): Call doloop_optimize_loops.
        (rest_of_compilation): Test for optimizations moved to
        rest_of_handle_loop2.

2004-03-17  Fariborz Jahanian <fjahanian@apple.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): correct reg_size
        for mixed mode.
        (rs6000_emit_prologue): Ditto.
        (rs6000_emit_epilogue): Ditto.
        * config/rs6000/rs6000.h: Definition of DWARF_CIE_DATA_ALIGNMENT
        macro for mixed mode.

2004-03-18  Jan Hubicka  <jh@suse.cz>

        * predict.c (propagate_freq): Compute correctly frequency of
        EXIT_BLOCK.

2004-03-17  Eric Christopher  <echristo@redhat.com>

        * builtins.c (apply_args_size): Use reg_raw_mode.
        (apply_result_size): Ditto.

2004-03-17  Ralf Corsepius <corsepiu@faw.uni-ulm.de>

        PR target/14620
        * config/rtems.h: Add STD_LIB_SPEC and LIB_SPEC.

2004-03-17  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/t-linux64 (bispecs): Don't add -mlong-double-128 for
        32-bit builds when defaulting to 32-bit.

2004-03-17  Jan Hubicka  <jh@suse.cz>

        * cfgrtl.c (rtl_create_basic_block): Pre-allocate basic_block_info
        array.

2004-03-17  James E Wilson  <wilson@specifixinc.com>

        * config/mips/mips.md (zero_extendsidi2): Add length attribute.
        (hazard_nop): Change type to nop.
        (type): Split arith into arith, shift, slt, clz.  Delete darith.
        Fix all uses.  Change arith to multi if more than one insn emitted.
        * config/mips/5400.md (ir_vr54_arith): Likewise.
        * config/mips/5500.md (ir_vr55_arith): Likewise.
        * config/mips/7000.md (rm7_int_other): Likewise.
        * config/mips/9000.md (rm9k_int): Likewise.
        * config/mips/sr71k.md (ir_sr70_arith): Likewise.

2004-03-17  Joel Brobecker  <brobecker@gnat.com>

        * dwarf2out.c (subrange_type_die): Define new variable "subtype"
        to hold the subtype tree instead of recomputing it several times.

2004-03-17  Kazu Hirata  <kazu@cs.umass.edu>

        * config/mn10300/mn10300.c (notice_update_cc): Don't handle
        CC_INVERT.
        * config/mn10300/mn10300.md (cc): Remove "invert".

2004-03-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (integer_valued_real_p): Add builtin rint.
        (fold_builtin): Likewise.
        * convert.c (convert_to_real): Likewise.

        * convert.c (convert_to_real): Fix typos in `long double'
        builtins.

2004-03-16  Mark Mitchell  <mark@codesourcery.com>

        PR c++/14481
        * fold-const.c (fold): Set TREE_NO_UNUSED_WARNING on implicitly
        generated COMPOUND_EXPRs.

2004-03-16  Ralf Corsepius <corsepiu@faw.uni-ulm.de>

        * config/h8300/t-rtems (h8300-*-rtems*): New.

2004-03-16  Eric Christopher  <echristo@redhat.com>

        * doc/cppopts.texi(fwide-exec-charset): Fix typo.

2004-03-16  Kazu Hirata  <kazu@cs.umass.edu>

        * config/i386/i386-protos.h: Add a prototype for
        ix86_reverse_condition.
        * config/i386/i386.c (ix86_reverse_condition): New.
        * config/i386/i386.h (REVERSE_CONDITION): Use
        ix86_reverse_condition.
        * config/i386/i386.md: Use ix86_reverse_condition instead of
        REVERSE_CONDITION.

2004-03-16  J. Brobecker  <brobecker@gnat.com>

        * dwarf2out.c (loc_descriptor_from_tree): Add handling for MIN_EXPR.

2004-03-16  Nathanael Nerode  <neroden@gcc.gnu.org>

        PR bootstrap/12974
        * Makefile.in: Pass $(INCLUDES) down to libgcc.mk explicitly.

2004-03-16  Paolo Bonzini  <bonzini@gnu.org>

        * c-common.c (c_common_type_for_mode): Build vector types on
        demand.
        (handle_mode_attribute): Deprecate using the mode attribute
        to create vector types.  Fix indentation.
        (vector_type_node_list): Remove.
        (handle_vector_size_attribute): Create vector types on demand.
        Strip a NON_LVALUE_EXPR from the attribute if there is one.
        * c-typeck.c (comptypes): Make vector types compatible if they
        have the same underlying mode.
        (convert_for_assignment): Use comptypes to convert between
        vector types.
        * tree.c (build_common_tree_nodes_2): Do not create vector types.
        * config/arm/arm.c (arm_init_iwmmxt_builtins): Create necessary
        vector types.
        * tree.h: Remove vector types.
        * config/i386/i386.c (i386_init_mmx_sse_builtins): Likewise.
        * config/rs6000/rs6000.c (rs6000_init_builtins): Likewise.
        (V16QI_type_node, V2SI_type_node, V2SF_type_node, V4HI_type_node,
        V4SI_type_node, V4SF_type_node, V8HI_type_node): New globals.
        * doc/extend.texi (Vector Types): Document how to use the
        vector_size attribute to create vectors, rather than mode.

        * config/arm/mmintrin.h: Use vector_size attribute, not mode.
        * config/i386/emmintrin.h: Likewise.
        * config/i386/mmintrin.h: Likewise.
        * config/i386/xmmintrin.h: Likewise.
        * config/sh/ushmedia.h: Likewise.

2004-03-16  Kazu Hirata  <kazu@cs.umass.edu>

        * config/freebsd-spec.h, config/arc/arc-protos.h,
        config/arm/aout.h, config/arm/elf.h, config/arm/freebsd.h,
        config/arm/linux-gas.h, config/arm/semi.h,
        config/cris/cris-protos.h, config/i386/xm-djgpp.h,
        config/ia64/freebsd.h, config/mips/7000.md,
        config/mips/9000.md, config/ns32k/ns32k-protos.h,
        config/sparc/pbd.h: Update copyright.

2004-03-16  Ralf Corsepius <corsepiu@faw.uni-ulm.de>

        PR target/14577
        * config.gcc: Switch sh-*-rtems* to ELF.  Add sh-*-rtemscoff.

2004-03-16  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (combine_simplify_rtx): Remove the "last"
        parameter and its documentation.  Adjust recursive calls.
        (simplify_logical): Always perform the only simplification
        controlled by "last", if the simplified expression is
        actually different.
        (try_combine): Do not pass the "last" parameter to
        combine_simplify_rtx.

2004-03-16  Richard Sandiford  <rsandifo@redhat.com>

        PR target/14599
        * config/mips/mips.md (UNSPEC_GP): New constant.
        * config/mips/mips.c (CONST_GP_P): Expect the CONST to contain
        an UNSPEC instead of (reg $gp).
        (mips16_gp_pseudo_reg): Change accordingly.
        (print_operand): Print $gp directly when handling CONST_GP_P.

2004-03-16  Richard Zidlicky  <rz@linux-m68k.org>

        * config.gcc, config/m68k/linux.h: Implement with-cpu for m68k-linux.
        * longlong.h: Make code 68060 clean when compiling for m68060.

2004-03-16  Richard Zidlicky  <rz@linux-m68k.org>

        * config/m68k/m68k.md: Fix constraints for bitfield instructions.
        * doc/md.texi: Clarify description of "i" constraint.

2004-03-15  James E Wilson  <wilson@specifixinc.com>

        * config/mips/mips.md (type): Split load into load, fpload, fpidxload.
        Split store into store, fpstore, fpidxstore.  Fix all uses.
        * config/mips/5400.md (ir_vr54_load, ir_vr54_store, ir_vr54_fstore):
        Likewise.
        * config/mips/5500.md (ir_vr55_load, i5_vr55_store): Likewise.
        * config/mips/7000.md (rm7_ld, rm7_st): Likewise.
        * config/mips/9000.md (rm9k_load, rm9k_store): Likewise.
        * config/mips/sr71k.md (ir_sr70_load, ir_sr70_store, ir_sr70_fload,
        ir_sr70_fstore): Likewise.

2004-03-15  Richard Henderson  <rth@redhat.com>

        PR middle-end/14535
        * except.c (collect_one_action_chain): Record action for cleanup
        outer of exception spec.

2004-03-15  Ian Lance Taylor  <ian@wasabisystems.com>

        * config/rs6000/host-darwin.c (darwin_rs6000_gt_pch_use_address):
        Fix the check for abort and only do the mmap if we can.

2004-03-15  Eric Botcazou  <ebotcazou@act-europe.fr>

        * config/sparc/sparc.h: Rework comments about the code model
        in 64-bit environment and the mode 'Pmode'.
        * doc/invoke.texi (SPARC options): Rework description of the
        different code models supported in 64-bit environment.

2004-03-15  Kazu Hirata  <kazu@cs.umass.edu>

        * defaults.h (REVERSIBLE_CC_MODE): Define.
        * jump.c (reversed_comparison_code_parts): Don't check if
        REVERSIBLE_CC_MODE is defined.

2004-03-15  Kazu Hirata  <kazu@cs.umass.edu>

        * c-incpath.c, c-incpath.h, c-pch.c, c.opt, cppexp.c,
        et-forest.h, genattr.c, ggc-none.c, hosthooks-def.h,
        hosthooks.h, params.h, ra-colorize.c, web.c,
        config/darwin-c.c, config/alpha/freebsd.h, config/arm/pe.c,
        config/avr/avr-protos.h, config/avr/avr.md,
        config/fr30/fr30-protos.h, config/fr30/fr30.md,
        config/h8300/fixunssfsi.c, config/i386/darwin.h,
        config/i386/freebsd.h, config/i386/freebsd64.h,
        config/ia64/hpux.h, config/ia64/unwind-ia64.c,
        config/ip2k/libgcc.S, config/m32r/xm-m32r.h,
        config/mmix/mmix-modes.def, config/ns32k/netbsd.h,
        config/ns32k/ns32k.md, config/pa/pa64-hpux.h,
        config/pa/pa64-regs.h, config/rs6000/aix41.h,
        config/rs6000/aix43.h, config/rs6000/host-darwin.c,
        config/sparc/aout.h, config/sparc/freebsd.h,
        config/sparc/litecoff.h, config/vax/vax-protos.h,
        doc/hostconfig.texi, doc/include/gcc-common.texi: Update
        copyright.

2004-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb_expand_prologue): Tie prologue insns to fp.

2004-03-15  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * c-pretty-print.c (pp_c_semicolon): Fix formatting.
        (pp_c_cv_qualifier): Document.
        (pp_c_space_for_pointer_operator): Likewise.
        (pp_c_integer_constant): Likewise.
        (pp_c_identifier): Likewise.
        (pp_c_init_declarator): Don't print function body.

2004-03-14  Joseph S. Myers  <jsm@polyomino.org.uk>

        * doc/contrib.texi, doc/extend.texi, doc/gcov.texi,
        doc/install.texi, doc/invoke.texi, doc/makefile.texi,
        doc/sourcebuild.texi, doc/tm.texi, doc/trouble.texi: Capitalize
        "gcc", "g++" and "g77" or mark up with appropriate markup.  Adjust
        wording and grammar.

2004-03-14  Roger Sayle  <roger@eyesopen.com>

        * alias.c (get_alias_set): Replace calls via (*lang_hooks.foo) ()
        with lang_hooks.foo ().
        * builtins.c (expand_builtin_va_arg): Likewise.
        * c-common.c (fname_as_string, c_common_truthvalue_conversion,
        c_common_type_for_mode, c_common_nodes_and_builtins,
        handle_mode_attribute, handle_vector_size_attribute): Likewise.
        * c-convert.c (convert): Likewise.
        * c-format.c (check_format_types): Likewise.
        * c-objc-common.c (c_tree_printer): Likewise.
        * c-typeck.c (build_unary_op, build_conditional_expr,
        build_binary_op): Likewise.
        * calls.c (try_to_integrate, expand_call,
        emit_library_call_value_1): Likewise.
        * cgraph.c (cgraph_node_name, cgraph_function_possibly_inlined_p):
        Likewise.
        * cgraphunit.c (record_call_1, cgraph_analyze_function,
        cgraph_expand_function): Likewise.
        * convert.c (convert_to_pointer, convert_to_integer): Likewise.
        * coverage.c (build_fn_info_type, build_ctr_info_type,
        build_gcov_info, create_coverage): Likewise.
        * dbxout.c (dbxout_init): Likewise.
        * diagnostic.c (diagnostic_report_current_function): Likewise.
        * dojump.c (do_jump): Likewise.
        * dwarf2out.c (dwarf2_name): Likewise.
        * except.c (init_eh): Likewise.
        * explow.c (expr_size, int_expr_size): Likewise.
        * expmed.c (make_tree, const_mult_add_overflow_p, expand_mult_add):
        Likewise.
        * expr.c (store_expr, store_constructor, safe_from_p,
        expand_expr_real, do_store_flag, try_casesi): Likewise.
        * function.c (push_function_context_to, pop_function_context_from,
        free_after_parsing, assign_stack_local_1, assign_stack_temp_for_type,
        put_var_into_stack, allocate_struct_function, current_function_name):
        Likewise.
        * integrate.c (copy_decl_for_inlining, expand_inline_function):
        Likewise.
        * langhooks.c (lhd_clear_binding_stack, write_global_declarations,
        lhd_print_error_function): Likewise.
        * opts.c (handle_option, decode_options): Likewise.
        * passes.c (open_dump_file): Likewise.
        * print-tree.c (print_node): Likewise.
        * stmt.c (expand_fixup, fixup_gotos, expand_asm_operands,
        expand_decl_cleanup, emit_case_nodes): Likewise.
        * stor-layout.c (variable_size): Likewise.
        * toplev.c (announce_function, wrapup_global_declarations,
        check_global_declarations, compile_file, default_tree_printer,
        process_options, lang_dependent_init, finalize): Likewise.
        * tree-dump.c (dequeue_and_dump): Likewise.
        * tree-inline.c (remap_decl, remap_block, copy_body_r,
        initialize_inlined_parameters, declare_return_variable,
        inlinable_function_p, expand_call_inline, optimize_inline_calls,
        walk_tree, copy_tree_r): Likewise.
        * tree-optimize.c (tree_rest_of_compilation): Likewise.
        * tree.c (decl_assembler_name, tree_size, size_in_bytes, staticp,
        unsafe_for_reeval, get_unwidened, get_narrower, get_callee_fndecl,
        variably_modified_type_p, dump_tree_statistics): Likewise.
        * varasm.c (assemble_variable, compare_constant, copy_constant,
        force_const_mem, compute_reloc_for_constant, output_constant,
        output_addressed_constants, initializer_constant_valid_p): Likewise.

2004-03-14  Kelley Cook  <kcook@gcc.gnu.org>

        * doc/install.texi: Make autoconf 2.13 the exception, not the rule.

2004-03-14  Andreas Tobler  <a.tobler@schweiz.ch>

        * doc/install.texi: Reflect autoconf and automake version for
        libffi. Update autoconf version to 2.59.

2004-03-13  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (negate_expr, operand_equal_for_comparison_p,
        optimize_bit_field_compare, decode_field_reference, all_ones_mask_p,
        make_range, build_range_check, fold_range_test, unextend,
        constant_boolean_node, fold_binary_op_with_conditional_arg,
        fold_truthop, fold_mathfn_compare, fold_inf_compare,
        fold_single_bit_test, fold): Replace calls via (*lang_hooks.foo) ()
        with lang_hooks.foo ().

2004-03-14  Richard Earnshaw  <rearnsha@arm.com>

        * arm.h (EXTRA_CONSTRAINT_STR_ARM): Update comment.

2004-03-13  Dara Hazeghi  <dhazeghi@yahoo.com>

        * doc/install.texi: Note status of -fnew-ra.

2004-03-13  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR middle-end/14470
        * expr.c (store_expr): Call emit_queue before generating the move
        from the temporary to the original target.  Protect the temporary
        from emit_queue.

2004-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR target/14533
        * config/s390/s390.c (legitimize_pic_address): Don't abort on UNSPEC
        other than UNSPEC_GOTOFF.

2004-03-13  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (arm_legitimate_address_p): New argument, OUTER.  Pass through
        to arm_legitimate_index_p.  Update all callers with SET as default
        value.
        (arm_legitimate_index_p): New argument, OUTER.  Restrict the index
        range if OUTER is a sign-extend operation on QImode.  Correctly
        reject shift operations on sign-extended QImode addresses.
        (bad_signed_byte_operand): Delete.
        (arm_extendqisi_mem_op): New function.
        * arm.h (EXTRA_CONSTRAINT_ARM): Delete.  Replace with...
        (EXTRA_CONSTRAINT_STR_ARM): ... this.  Handle extended address
        constraints.
        (CONSTRAINT_LEN): New.
        (EXTRA_CONSTRAINT): Delete.  Replace with...
        (EXTRA_CONSTRAINT_STR): ... this.
        (PREDICATE_CODES): Remove bad_signed_byte_operand.
        * arm.md (extendqihi_insn): Use new constraint Uq.  Rework.  Length
        is now always default.
        (define_splits for bad sign-extend loads): Delete.
        (arm_extendqisi, arm_extendqisi_v5): Likewise.
        * arm/vfp.md (arm_movsi_vfp, arm_movdi_vfp, movsf_vfp, movdf_vfp):
        Rework 'U' constraint to 'Uv'.
        * arm-protos.h: Remove bad_signed_byte_operand.  Add
        arm_extendqisi_mem_op.
        * doc/md.texi (ARM constraints): Rename VFP constraint (now Uv).
        Add Uq constraint.

2004-03-13  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_va_arg): Replace SPLIT_COMPLEX_ARGS
        with targetm version.

        PR target/14567
        * config/rs6000/rs6000.h (UNITS_PER_ARG, RS6000_ARG_SIZE): Delete.
        (HARD_REGNO_MODE_OK): Disallow TFmode for fp31.
        * config/rs6000/rs6000.c (rs6000_arg_size): New function.
        Update all users of RS6000_ARG_SIZE.
        (function_arg_advance): Count fregno using mode size.
        (function_arg): Handle long double split over regs and memory.
        (function_arg_partial_nregs): Likewise.
        (rs6000_va_arg): Repackage complex args.

2004-03-13  Dean Ferreyra <dferreyra@igc.org>

        PR target/14047
        * config/avr/avr.c (avr_progmem_p): Add "attributes" parameter.
        (avr_insert_attributes): Pass "attributes" to avr_progmem_p.
        * config/avr/avr-protos.h (avr_progmem_p): Change prototype.

2004-03-12  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000-protos.h (rs6000_output_dwarf_dtprel): Add
        prototype.
        * config/rs6000/rs6000.c (rs6000_output_dwarf_dtprel): New.
        * config/rs6000/rs6000.h (ASM_OUTPUT_DWARF_DTPREL): Define.

2003-03-12  Andrew Pinski  <apinski@apple.com>

        * config/rs6000/host-darwin.c (darwin_rs6000_gt_pch_use_address):
        Use ret instead of result. Use addr instead of base.

2004-03-12  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi (*-ibm-aix*): Document assembler and achiver
        fixes required by libstdc++ and update installation instructions
        for libstdc++.a.

2004-03-12  Danny Smith  <dannysmith@users.sourceforge.net>

        * config/i386/winnt.c (i386_pe_strip_name_encoding_full): Strip
        leading '@' on fastcall symbols before stripping suffix.

2004-03-12  Roger Sayle  <roger@eyesopen.com>

        * combine.c (unmentioned_reg_p): New function to check whether an
        expression is a "specialization" of another, i.e. that there are
        no registers or memory references mentioned in the first that don't
        appear in the second.
        (unmentioned_reg_p_1): New helper subroutine of unmentioned_reg_p.
        (combine_instructions): Also try combining instructions using the
        REG_EQUAL note from a preceding log-linked instruction.

2004-03-12  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_split_ashrdi): Optimize shift by 63.

2004-03-12  Matt Austern  <austern@apple.com>

        * target.h (struct gcc_target): New target hook, unwind_label.
        * target-def.h (TARGET_ASM_EMIT_UNWIND_LABEL): New hook.
        * output.h (default_emit_unwind_label): New function.
        * default.h (TARGET_EXPLICIT_INSTANTIATIONS_ONE_ONLY): New macro.
        (TARGET_USES_WEAK_UNWIND_INFO): New target macro.
        (TARGET_SUPPORTS_HIDDEN): New target macro.
        * dwarf2out.c (struct dw_fde_struct): Add field for function decl
        that corresponds to this FDE.
        (FRAME_BEGIN_LABEL): Allow target to override default label.
        (output_call_frame_info): If FDEs are linknonce, then use extra
        indirection for FDE encoding, output a label for each FDE, and
        output an empty label for each function without an FDE.
        (dwarf2out_begin_prologue): Set up decl field when creating an FDE.
        * varasm.c (globalize_decl): Call ASM_MAKE_LABEL_LINKONCE for
        decls with DECL_ONE_ONLY set, if that macro is defined.
        (make_decl_one_only): Don't use DECL_COMMON if we're compiling
        for a SUPPORTS_ONE_ONLY target.
        * config/darwin-protos.h (darwin_unique_section): Declare.
        (darwin_asm_named_section): Likewise.
        (darwin_section_type_flags): Likewise.
        (darwin_non_lazy_pcrel): Likewise.
        (darwin_emit_unwind_label): Likewise.
        (darwin_make_decl_one_only): Likewise.
        * config/darwin.c (machopic_finish): Get rid of tweak that
        eliminate stubs for symbols that are defined.
        (darwin_encode_section_info): Don't treat weak functions as defined.
        (darwin_make_decl_one_only): Define.
        (darwin_asm_named_section): Likewise.
        (darwin_section_type_flags): Likewise.
        (darwin_unique_section): Likewise.
        (darwin_emit_unwind_label): Likewise.
        (darwin_non_lazy_pcrel): Likewise.
        (darwin_asm_output_dwarf_delta): Difference between two labels is
        local only if both labels are local.
        * config/darwin.h (MAKE_DECL_ONE_ONLY): Define.
        (ASM_MAKE_LABEL_LINKONCE): Likewise.
        (TARGET_SUPPORTS_HIDDEN): Likewise.
        (TARGET_USES_WEAK_UNWIND_INFO): Likewise.
        (TARGET_EXPLICIT_INSTANTIATIONS_ONE_ONLY): Likewise.
        (FRAME_BEGIN_LABEL): Likewise.
        (ASM_DECLARE_OBJECT_NAME): Make references to weak symbols indirect.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        (darwin_eh_frame_section): Give __eh_frame section the coalesced flag.
        (TARGET_ASM_UNIQUE_SECTION): Define.
        (EH_FRAME_SECTION_NAME): Define.
        (EH_FRAME_SECTION_ATTR): Likewise.
        (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Likewise.
        (TARGET_ASM_NAMED_SECTION): Likewise.
        (TARGET_SECTION_TYPE_FLAGS): Likewise.
        * doc/tm.texi: Document TARGET_USES_WEAK_UNWIND_INFO,
        TARGET_EXPLICIT_INSTANTIATIONS_ONE_ONLY, TARGET_SUPPORTS_HIDDEN,
        TARGET_ASM_EMIT_UNWIND_LABEL.

2004-03-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_mathfn): Add pow10* to the
        existing exp10* case.
        (expand_builtin): Likewise.

2004-03-12  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * doc/tm.texi (registers) <Values in Registers>: Add
        entry for REGMODE_NATURAL_SIZE.

2004-03-12  Richard Henderson  <rth@redhat.com>

        PR target/14547
        * target.h (struct gcc_target): Move calls substructure before
        booleans.  Add split_complex_arg.
        * function.c (assign_parms, split_complex_args): Use it.
        * calls.c (expand_call): Likewise.
        (split_complex_values): Likewise.  Check for splittable types
        before allocating memory.
        (split_complex_types): Likewise.
        * system.h (SPLIT_COMPLEX_ARGS): Poison.
        * expr.h (SPLIT_COMPLEX_ARGS): Remove.
        * target-def.h (TARGET_SPLIT_COMPLEX_ARG): New.
        * config/alpha/alpha.c (alpha_split_complex_arg): New.
        (TARGET_SPLIT_COMPLEX_ARG): New.
        * config/alpha/alpha.h (SPLIT_COMPLEX_ARGS): Remove.
        * config/rs6000/rs6000.c (TARGET_SPLIT_COMPLEX_ARG): New.
        (rs6000_override_options): Zap it for non-AIX.
        (rs6000_function_value): Use targetm.calls.split_complex_arg.
        * config/rs6000/rs6000.h (SPLIT_COMPLEX_ARGS): Remove.
        * config/xtensa/xtensa.c (TARGET_SPLIT_COMPLEX_ARG): New.
        * config/xtensa/xtensa.h (SPLIT_COMPLEX_ARGS): Remove.
        * doc/tm.texi (TARGET_SPLIT_COMPLEX_ARG): Modify from old
        SPLIT_COMPLEX_ARGS entry.

2004-03-11  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (xfloating_ops, vax_cvt_ops): New.
        (alpha_lookup_xfloating_lib_func): Use them, return rtx.
        (alpha_emit_xfloating_arith): Update to match.
        (alpha_emit_xfloating_compare): Likewise.
        (alpha_emit_xfloating_cvt): Likewise.
        (alpha_emit_xfloating_libcall): Take already built symbol,
        mark call const.
        * config/alpha/alpha.md (extendsftf2, extenddftf2): Take
        op1 in a register.

2004-03-11  Richard Henderson  <rth@redhat.com>

        PR target/14539
        * config/alpha/alpha.h (STACK_BOUNDARY): Set to 128.

        * simplify-rtx.c (simplify_relational_operation): Fix typo.

2004-03-11  Richard Henderson  <rth@redhat.com>

        PR middle-end/14477
        * except.c (remove_unreachable_regions): Look thru CALL_PLACEHOLDER.

2004-03-11  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/14262
        * calls.c (load_register_parameters): If BLOCK_REG_PADDING is not
        defined, pass small BLKmode values in registers in the low-order part.

2004-03-11  Ulrich Weigand  <uweigand@de.ibm.com>

        * combine.c (if_then_else_cond): Check for NULL return value of
        simplify_gen_subreg.

2004-03-11  Richard Sandiford  <rsandifo@redhat.com>

        PR target/14496
        * config/mips/mips.h (UNITS_PER_FPVALUE): Fix value for
        TARGET_SINGLE_FLOAT.

2004-03-11  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/hpux.h (TARGET_INIT_LIBFUNCS): Add undef.
        * config/ia64/ia64.h (TARGET_INIT_LIBFUNCS): Add define.
        * config/ia64/ia64.c (ia64_init_libfuncs): New.
        (ia64_hpux_init_libfuncs): Add call to ia64_init_libfuncs.

2004-03-11  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (negate_expr_p) <RSHIFT_EXPR>: We can optimize
        -((int)X>>C) where C is an integer constant one bit less than the
        size of X into (unsigned)X>>C.  Similarly for unsigned->signed.
        (negate_expr) <RSHIFT_EXPR>: Implement the above transformations.

        * simplify-rtx.c (simplify_unary_operation): Also implement the
        above transformations at the RTL level.

2004-03-11  Alan Modra  <amodra@bigpond.net.au>

        * real.c (encode_ibm_extended): Do round low word.

2004-03-11  Ben Elliston  <bje@wasabisystems.com>

        * config/arm/arm.md (is_xscale): Comment this attribute and move
        it a bit further up in the file, closer to related attributes.

2004-03-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/host-solaris.c (sol_gt_pch_use_address): Add
        missing terminating marker to comment.

2004-03-11  Richard Sandiford  <rsandifo@redhat.com>

        * config/mips/mips.md: Use move_operand in splitters for 64-bit moves.
        (movdi, movsi, movhi, movqi, movsf, movdf): Remove predicates.
        (*movdi_32bit_mips16, *movsi_mips16, *movhi_mips16, *movqi_mips16)
        (*movsf_mips16, *movdf_mips16):  Name unnamed patterns.  Use
        move_operand as source predicate in all cases.
        (*movdi_32bit): Renamed from movdi_internal.  Remove 'F' constraint.
        Test reg_or_0_operand.  Use move_operand as source predicate.
        (*movdi_64bit): Renamed from movdi_internal2.  Test reg_or_0_operand.
        (*movdi_64bit_mips16): Renamed from movdi_internal2_mips16.
        (*movsi_internal): Renamed from movsi_internal.  Test reg_or_0_operand.
        (movhi, movqi, movsf, movdf): Use mips_legitimize_move.
        (*movhi_internal): Renamed from movhi_internal.  Test reg_or_0_operand.
        Use move_operand as source predicate.  Remove 'K' constraint.
        (*movqi_internal): Likewise movqi_internal.
        (*movsf_hardfloat): Renamed from movsf_internal1.  Test
        reg_or_0_operand.  Use move_operand as source predicate.
        (*movsf_softfloat): Likewise movsf_internal2.
        (*movdf_hardfloat_64bit): Likewise movsf_internal1a.
        (*movdf_hardfloat_32bit): Likewise movsf_internal1b.
        (*movdf_softfloat): Likewise movdf_internal2.
        * config/mips/mips.c (move_operand): Match arbitrary CONST_INTs
        for DImode if !TARGET_64BIT.
        (mips_legitimize_move): Simplify accordingly.

2004-03-11  Josef Zlomek  <zlomekj@suse.cz>

        PR/14362
        * var-tracking.c (struct variable_def): Added field refcount.
        (variable_htab_free): Decrease the refcount and delete variable
        only if there are no more references.
        (unshare_variable): New function.
        (vars_copy_1): Increase refcount instead of copying the variable.
        (variable_union): Share the variables where possible, unshare
        the variables if needed.
        (variable_different_p): Return false if var1 and var2 are
        the same structure.
        (variable_was_changed): Init the refcount of new variable.
        (set_frame_base_location): Unshare variable if needed.
        (set_variable_part): Init the refcount of new variable.
        Unshare the variables if needed.
        (delete_variable_part): Unshare the variables if needed.
        (emit_notes_for_differences_1): Init the refcount of new variable.
        (vt_add_function_parameters): Do not add function parameters to
        IN set of ENTRY_BLOCK_PTR because it is unused anyway.
        (vt_initialize): Do not add frame_base_decl to IN set of
        ENTRY_BLOCK_PTR because it is unused anyway.

2004-03-11  Josef Zlomek  <zlomekj@suse.cz>

        * var-tracking.c (vars_copy_1): Cleanup and speedup chain operations.
        (vars_copy): Likewise.
        (variable_union): Likewise.
        (set_variable_part): Likewise.
        (delete_variable_part): Likewise.

2004-03-11  Kazu Hirata  <kazu@cs.umass.edu>

        * c-typeck.c, combine.c, cse.c, dominance.c, et-forest.h,
        ggc-page.c, var-tracking.c, config/fp-bit.c, config/c4x/c4x.c,
        config/cris/cris.c, config/i386/ppro.md, config/i860/i860.c,
        config/i860/i860.h, config/m32r/m32r.h, config/m32r/xm-m32r.h,
        config/m68hc11/m68hc11.h, config/m68hc11/m68hc11.md,
        config/mips/mips.c, config/mmix/mmix.c, config/ns32k/ns32k.h,
        config/pa/pa.c, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
        config/pdp11/pdp11.h, config/rs6000/rs6000.c,
        config/stormy16/stormy16.c: Fix comment typos and formatting.

2004-03-11  Nathanael Nerode  <neroden@gcc.gnu.org>

        * configure: Regenerate, since I forgot to while committing Paolo's
        changes.

2004-03-08  Paolo Bonzini  <bonzini@gnu.org>

        PR ada/14131
        Move language detection to the top level.
        * configure.ac: Remove code to detect languages,
        it now lives exclusively in the top level.
        * aclocal.m4 (gcc_AC_PROG_GNAT): Moved to the
        top level, renamed to ACX_PROG_GNAT.

2004-03-10  Richard Henderson  <rth@redhat.com>

        * c-pch.c (c_common_no_more_pch): Update for gt_pch_use_address
        extra arguments.
        * config.host (*-*-solaris2*, *-*-linux*): Add out_host_hook_obj
        and host_xmake_file fragments.
        * ggc-common.c (gt_pch_save): Update for gt_pch_get_address change.
        (gt_pch_restore): Similarly for gt_pch_use_address.
        (default_gt_pch_get_address): New.
        (mmap_gt_pch_get_address): Split out of gt_pch_save.
        (default_gt_pch_use_address): Split out of gt_pch_restore.
        (mmap_gt_pch_use_address): Likewise.
        * hooks.c (hook_voidp_size_t_null): Remove.
        (hook_bool_voidp_size_t_false): Remove.
        * hooks.h: Likewise.
        * hosthooks-def.h (HOST_HOOKS_GT_PCH_GET_ADDRESS): Use one of the
        default_ or mmap_ definitions.
        (HOST_HOOKS_GT_PCH_USE_ADDRESS): Likewise.
        * hosthooks.h (struct host_hooks): Update gt_pch_get_address
        and gt_pch_use_address.
        * config/host-linux.c, config/host-solaris.c: New files.
        * config/x-linux, config/x-solaris: New files.
        * config/rs6000/host-darwin.c (darwin_rs6000_gt_pch_get_address):
        Update for changed definition.
        (darwin_rs6000_gt_pch_use_address): Likewise.
        * doc/hostconfig.texi: Update docs.

2004-03-10  Richard Henderson  <rth@redhat.com>

        PR c/14517
        * c-decl.c (grokdeclarator): Don't warn for duplicate qualifiers
        except for pedantic c90 mode.

2004-03-10  Kelley Cook  <kcook@gcc.gnu.org>

        * configure.ac: Bump AC_PREREQ to 2.59.
        * configure: Regenerate.

2004-03-10  Uros Bizjak  <uros@kss-loka.si>

        * optabs.h (enum optab_index): Add new OTI_exp10 and OTI_exp2.
        (exp10_optab, exp2_optab): Define corresponding macros.
        * optabs.c (init_optabs): Initialize exp10_optab and exp2_optab.
        * genopinit.c (optabs): Implement exp10_optab and exp2_optab
        using exp10?f2 and exp2?f2 patterns.
        * builtins.c (expand_builtin_mathfn): Handle BUILT_IN_EXP10{,F,L}
        using exp10_optab, and BUILT_IN_EXP2{,F,L} using exp2_optab.
        (expand_builtin): Expand BUILT_IN_EXP10{,F,L} and BUILT_IN_EXP2{,F,L}
        using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (exp10sf2, exp10df2, exp10xf2, exp2sf2,
        exp2df2, exp2xf2): New patterns to implement exp10, exp10f, exp10l,
        exp2, exp2f and exp2l built-ins as inline x87 intrinsics.

2004-03-10  Anthony Green  <green@redhat.com>

        * doc/invoke.texi (ARM Options): Fix -mpfu typo.

2004-03-10  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix.h (TARGET_OS_CPP_BUILTINS): Rename to ...
        (TARGET_OS_AIX_CPP_BUILTINS): this.  Conditionally define
        __LONGDOUBLE128.
        * config/rs6000/aix41.h (TARGET_OS_CPP_BUILTINS): Use
        TARGET_OS_AIX_CPP_BUILTINS.
        * config/rs6000/aix43.h (TARGET_OS_CPP_BUILTINS): Same.
        * config/rs6000/aix51.h (TARGET_OS_CPP_BUILTINS): Same.
        * config/rs6000/aix52.h (TARGET_OS_CPP_BUILTINS): Same.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Revert
        previous change.

2004-03-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_p): Add more builtin cases.

2004-03-10  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        __LONGDOUBLE128 on AIX.

2004-03-10  Andrew Haley  <aph@redhat.com>

        PR optimization/14381
        * function.c (expand_function_end): Emit a blockage insn before
        the epilogue when -fnon-call-exceptions is used.

        * except.c (expand_start_all_catch): Make comment more accurate.

2004-03-08  Joel Sherrill  <joel@oarcorp.com>

        PR target/14480
        * config/rs6000/t-rtems: Add missing file on branch.

2004-03-10  Ulrich Weigand  <uweigand@de.ibm.com>

        * dbxout.c (dbxout_symbol_location): Do not output references
        to optimized-out constant pool symbols.

2004-03-10  Andreas Schwab  <schwab@suse.de>

        * config/ia64/ia64.md (divsi3, udivsi3): Remove unused variable
        twon34_r.

2004-03-09  James E Wilson  <wilson@specifixinc.com>

        * alias.c (alias_sets_might_conflict_p): New.
        * c-typeck.c (build_c_cast): Call it if warn_strict_aliasing > 1.
        * common.opt (Wstrict-aliasing=): New.
        * flags.h (warn_strict_aliasing): Change type to int.
        * opts.c (warn_strict_aliasing): Change type to int.
        (common_handle_option): Handle OPT_Wstrict_aliasing_.
        * tree.h (alias_sets_might_conflict_p): Declare it.
        * doc/invoke.tex (-Wstrict-aliasing=2): Document it.

2004-03-10  Roman Zippel  <zippel@linux-m68k.org>

        PR bootstrap/12371
        * config/m68k/m68k.h (FIXED_REGISTERS): Add arg pointer.
        (CALL_USED_REGISTERS): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        (REG_ALLOC_ORDER): New.
        (REGNO_REG_CLASS): Use regno_reg_class.
        * config/m68k/m68k.c: Add regno_reg_class array.

2004-03-09  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.md (divsi3): Fix algorithm.
          (udivsi3): Ditto.
          (setf_exp_xf): Remove '*' from name.
        * testsuite/gcc.dg/20040309-1.c: New test.

2004-03-09  Ian Lance Taylor  <ian@wasabisystems.com>

        * system.h (SUNOS4_SHARED_LIBRARIES): Poison.
        * collect2.c: Remove SUNOS4_SHARED_LIBRARIES code.
        * config/sparc/aout.h (TARGET_ASM_SELECT_SECTION): Don't define.
        * config/sparc/sparc.c (sparc_aout_select_section): Remove.
        (sparc_aout_select_rtx_section): Don't check
        SUNOS4_SHARED_LIBRARIES.
        * config/sparc/sparc.h (SUNOS4_SHARED_LIBRARIES): Don't define.

2004-03-10  Hans-Peter Nilsson  <hp@axis.com>

        PR other/14474
        * doc/md.texi (Pattern Ordering, Dependent Patterns)
        (Jump Patterns, Looping Patterns): Wrap in separate "@ifset
        INTERNALS".

2004-03-09  Zack Weinberg  <zack@codesourcery.com>

        * config/ia64/hpux.h (MULTILIB_DEFAULTS): Define.
        (LIBGCC_SPEC): Update to match.

2004-03-09  Zack Weinberg  <zack@codesourcery.com>

        * c-decl.c (last_function_parms, last_function_parm_tags)
        (last_function_parm_others, current_function_parms)
        (current_function_parm_tags, current_function_parm_others):
        Delete.
        (ARG_INFO_PARMS, ARG_INFO_TAGS, ARG_INFO_TYPES, ARG_INFO_OTHERS):
        New macros.
        (grokdeclarator): For function definitions, save the arg-info
        block from the declarator in DECL_ARGUMENTS.
        (grokparms): Do not write to last_function_parm*.  Use ARG_INFO_*
        macros to operate on arg-info block.  Can assume ARG_INFO_PARMS
        contains only PARM_DECLs.  Improve diagnostics.
        (get_parm_info): Use ARG_INFO_* macros.  Improve comments and
        diagnostics.  Disable some expensive checks if not ENABLE_CHECKING.
        (store_parm_decls_newstyle): Take the function to operate on,
        and an arg-info block, as arguments; don't get anything from
        current_function_* globals.
        (store_parm_decls_oldstyle): Likewise.
        (store_parm_decls): Pass fndecl and its arg-info block down to
        store_parm_decls_newstyle/oldstyle.  Send functions with empty
        argument lists through store_parm_decls_newstyle to reduce
        overhead.
        (pushdecl): Comment on the problems with the call to copy_node.
        Clear DECL_ARGUMENTS of the old node after copying it, if it
        is an arg-info block instead of a chain of decls.
        (start_function): Do not manipulate current_function_parm* or
        last_function_parm*.

2004-03-09  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@physics.uc.edu>

        * ifcvt.c (noce_try_sign_mask): New function to transform
        "x = (y < 0) ? z : 0" into the equivalent "x = (y >> C) & z".
        (noce_process_if_block): Call noce_try_sign_mask.

2004-03-09  Andrew Pinski  <apinski@apple.com>

        * c-typeck.c (tagged_types_tu_compatible_p):
        Fix typo.

2004-03-09  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_const_relational_operation): New function
        renamed from simplify_relational_operation.
        (simplify_relational_operation): Change prototype to accept an
        additional mode argument.  Call simplify_const_relational_operation.
        (simplify_gen_relational): Update simplify_relational_operation call.
        (simplify_ternary_operation): Update simplify_relational_operation
        subroutine call to use simplify_const_relational_operation instead.

        * rtl.h (simplify_const_relational_operation): Prototype here.
        (simplify_relational_operation): Add addtional mode argument.

        * combine.c (combine_simplify_rtx): Update calls to
        simplify_relational_operation.
        (simplify_set): Likewise.
        (gen_binary): Likewise.
        * cse.c (fold_rtx): Likewise.
        * dojump.c (compare_from_rtx): Likewise.
        (do_compare_rtx_and_jump): Likewise.
        * integrate.c (subst_constants): Likewise.
        * unroll.c (simplify_cmp_and_jump_insns): Likewise.

2004-03-09  Kazu Hirata  <kazu@cs.umass.edu>

        * config/m32r/m32r.md: Remove all define_peephole's.

2004-03-09  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.md: Remove trailing whitespace.

2004-03-08  Eric Christopher  <echristo@redhat.com>

        * Makefile.in (site.exp): Add libiconv variable definition.

2004-03-09  Hans-Peter Nilsson  <hp@axis.com>

        * configure: Regenerate for config/accross.m4 correction.

2004-03-08  Joel Sherrill  <joel@oarcorp.com>

        PR target/14480
        * config/rs6000/t-rtems: Add missing file on branch.

2004-03-08  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/14289
        * c-typeck.c (c_mark_addressable): A register variable should
        be considered global if its not automatic, i.e. TREE_PUBLIC,
        TREE_STATIC or DECL_EXTERNAL.
        * function.c (put_var_into_stack): Call abort when placing a
        hard register into the stack, if x_parm_reg_stack_loc is NULL.

2004-03-08  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/s390.md ("*extendqidi2_short_displ"): Add CC clobber.
        ("*extendqisi2_short_displ"): Likewise.

2004-03-08  Kazu Hirata  <kazu@cs.umass.edu>

        * config/pdp11/pdp11.c (comparison_operator_index): Remove.
        (comp_operator): Likewise.
        * config/pdp11/pdp11-protos.h: Remove corresponding
        prototypes.

2004-03-08  Eric Botcazou  <ebotcazou@act-europe.fr>

        * expr.c (highest_pow2_factor_for_type): Rename into
        highest_pow2_factor_for_target.  Use DECL_ALIGN instead of
        TYPE_ALIGN when the target is a COMPONENT_REF.
        (expand_assignment): Ajust call to highest_pow2_factor_for_type.

2004-03-08  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c: Formatting fix.
        (legitimate_offset_address_p): Correct offset range check.

        * config/rs6000/rs6000.c (rs6000_override_options): Don't override
        -msoft-float by -mcpu.  Consolidate similar code for MASK_MULTIPLE
        and MASK_STRING.

2004-03-07  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.md (ashrdi3): Do not call ashrdi3_no_power
        for little endian.
        ("ashrdi3_no_power"): Disable for little endian.
        (ashrdi3): Same.

2004-03-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_p): Reformat checks for
        builtins.

2004-03-08  Hans-Peter Nilsson  <hp@axis.com>

        PR target/14471
        * configure.ac (Target-specific assembler checks) <cris-*-*>: New
        case, checking for -no-mul-bug-abort option.
        * configure, config.in: Regenerate.
        * doc/invoke.texi (CRIS Options): Document -mmul-bug-workaround
        and -mno-mul-bug-workaround.
        * config/cris/cris.md ("smulsi3_highpart", "umulsi3_highpart")
        ("mulsidi3", "umulsidi3"): Prefix output template with "%!".
        ("umulhisi3", "umulqihi3", "mulsi3", "mulqihi3", "mulhisi3"):
        Ditto.  Make attribute "slottable" dependent on TARGET_MUL_BUG.
        * config/cris/mulsi3.asm (__Mul) [__CRIS_arch_version >= 10]: Make
        sure mulu.d is not last on cache-line.
        * config/cris/cris.h (ASM_SPEC): Translate -mno-mul-bug-workaround
        into -no-mul-bug-abort depending on HAVE_AS_MUL_BUG_ABORT_OPTION.
        (TARGET_MASK_MUL_BUG, TARGET_MUL_BUG): New macros.
        (TARGET_SWITCHES): New options -mmul-bug-workaround and
        -mno-mul-bug-workaround.
        (TARGET_DEFAULT): Include TARGET_MASK_MUL_BUG.
        (PRINT_OPERAND_PUNCT_VALID_P): Include '!'.
        * config/cris/cris.c (cris_operand_extend_operator): Clarify
        relation to MULT in head comment.
        (cris_op_str): Abort for MULT.
        (cris_print_operand) <case '!'>: New case.

2004-03-08  Alan Modra  <amodra@bigpond.net.au>

        PR debug/11983
        * dwarf2out.c (enum dw_val_class): Rename dw_val_class_float to
        dw_val_class_vec.  Replace use throughout file.
        (dw_float_const): Delete.
        (dw_vec_const): New.
        (dw_val_struct_union): Rename val_float to val_vec.  Replace use
        throughout file.
        (add_AT_vec): Rename from add_AT_float.  Add elt_size param.
        (same_dw_val_p): Adjust vec comparison.  Use memcmp.
        (size_of_die): Adjust dw_val_class_vec sizing.
        (output_die): Output dw_val_class_vec.
        (insert_int, extract_int, insert_float): New functions.
        (add_const_value_attribute): Use insert_float for CONST_DOUBLE.
        Handle CONST_VECTOR.
        (add_location_or_const_value_attribute): Handle CONST_VECTOR.

2004-03-07  Aldy Hernandez  <aldyh@redhat.com>

        * config/rs6000/rs6000.c (rs6000_parse_abi_options): SPE and
        AltiVec abi cannot co-exist.

        * config/rs6000/eabispe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Same.

2004-03-07  Jan Hubicka  <jh@suse.cz>

        * except.c (emit_to_new_bb_before):  Break fallthru edges.

2004-03-07  Stephane Carrez  <stcarrez@nerim.fr>

        * config/m68hc11/m68hc11.md ("*lshrsi3_const"): Disable for 68HC12.
        ("*lshrsi3"): Also accept an immediate for 68HC12.
        ("*ashrsi3_const"): Likewise.
        ("*ashrsi3"): Likewise.
        ("*ashlsi3_const"): Likewise.
        ("*ashlsi3"): Likewise.
        ("cmphi_1_hc12"): Compare two hard register by pushing them and
        comparing with a pop; don't use a split for that.
        ("cmphi split"): Disable compare split for 68HC12.

        * config/m68hc11/m68hc11.c (m68hc11_notice_update_cc): Invalidate
        the status operands if they have side effects.

2004-03-07  Kazu Hirata  <kazu@cs.umass.edu>

        * defaults.h (LEGITIMIZE_ADDRESS): Provide a default
        definition.
        * config/arc/arc.h, config/fr30/fr30.h, config/frv/frv.h,
        config/h8300/h8300.h, config/ia64/ia64.h,
        config/mcore/mcore.h, config/mmix/mmix.h,
        config/ns32k/ns32k.h, config/pdp11/pdp11.h,
        config/stormy16/stormy16.h, config/v850/v850.h,
        config/vax/vax.h (LEGITIMIZE_ADDRESS): Remove.
        * doc/tm.texi (LEGITIMIZE_ADDRESS): Mention the default
        definition.

2004-03-07  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold) <IOR_EXPR>: Fold x | x as x.
        <XOR_EXPR>: Fold x ^ x as zero.
        <AND_EXPR>: Fold x & x as x.

2004-03-07  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold) <EQ_EXPR>: Rewrite optimization to transform
        "foo++ == const" into "++foo == const+incr".

2004-03-07  Richard Sandifor