2006-04-22 Frank Ch. Eigler <fche@redhat.com>

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

2006-04-22  Frank Ch. Eigler  <fche@redhat.com>

        PR libmudflap/26864
        * common.opt (flag_mudflap_threads): Overload flag_mudflap.
        * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

        * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
        Fix comment typos.
        * doc/tm.texi: Fix a typo.

2006-04-21  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (struct die_struct): Document that die_sib makes
        a circular linked list.
        (FOR_EACH_CHILD): New.
        (reverse_die_lists): Delete.
        (reverse_all_dies): Delete.
        (add_dwarf_attr): Correct documentation.
        (remove_child_with_prev): New.
        (remove_child_TAG): Update for change to die_struct, use
        remove_child_with_prev.
        (add_child_die): Update for change to die_struct.
        (splice_child_die): Use remove_child_with_prev and add_child_die.
        (print_die): Use FOR_EACH_CHILD.
        (die_checksum): Likewise.
        (assign_symbol_names): Likewise.
        (output_location_lists): Likewise.
        (build_abbrev_table): Likewise.
        (calc_die_sizes): Likewise.
        (mark_dies): Likewise.
        (unmark_dies): Likewise.
        (unmark_all_dies): Likewise.
        (output_die): Likewise.
        (prune_unused_types_mark): Likewise.
        (prune_unused_types_walk): Likewise.
        (same_die_p): Update for change to die_struct.
        (break_out_includes): Likewise.
        (prune_unused_types_prune): Likewise.
        (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
        (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
        it's already clear.
        (dwarf2out_finish): Don't call reverse_all_dies.

2006-04-21  Eric Christopher  <echristo@apple.com>

        * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
        in comments and function names.

2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/25875
        * c-typeck.c (digest_init): Robustify.

        * c-typeck.c (pop_init_level): Simplify.

2006-04-21  Steve Ellcey  <sje@cup.hp.com>

        * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).

2006-04-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_override_options): Error on iWMMXt and
        hardware floating point.

2006-04-21  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
        NON_FLOAT_REGS.

2006-04-21  Nick Clifton  <nickc@redhat.com>

        * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
        OPT_EXTRA_PARTS.

2006-04-21  Alan Modra  <amodra@bigpond.net.au>

        PR target/27230
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
        C++ lang type in traceback table for Objective-C++.

        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.

2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.

2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR mudflap/26789
        * tree-mudflap.c (mudflap_finish_file): Skip function when there
        were errors.  Remove check for erroneous objects.

2006-04-20  Jeff Law  <law@redhat.com>

        PR tree-optimization/26854
        * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
        checking for zero or one use.
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
        * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
        * tree-ssa-reassoc.c (negate_value): Similarly.
        (reassociate_bb): Similarly.

2006-04-20  Jakub Jelinek  <jakub@redhat.com>

        * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
        TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
        than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).

2006-04-20  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
        fp regs if the last fp arg doesn't fit in regs.

2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/27182
        * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
        that the last insn has the REG_INC note.

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        PR c/26774
        * stor-layout.c (update_alignment_for_field): Do not align
        ERROR_MARK nodes.
        (place_union_field): Place union field at the start of the union.
        (place_field): Move ERROR_MARK check later, and use the current
        allocation position to maintain monotonicity.

2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>

        * dominance.c: Include timevar.h.
        (calculate_dominance_info): Use TV_DOMINANCE.
        * timevar.def (TV_DOMINANCE): New timevar.
        * Makefile.in (dominance.o): Add TIMEVAR_H dependency.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR rtl-optimization/14261
        * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
        move would be an INSV insn.
        (noce_process_if_block): Don't optimize if the destination is a
        ZERO_EXTRACT which can't be handled by noce_emit_move_insn.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md: Add comments with the instructions emitted
        by an insn pattern if macros are used.

2006-04-19  Alan Modra  <amodra@bigpond.net.au>

        PR rtl-optimization/26026
        * fold-const.c (fold_binary): Optimize div and mod where the divisor
        is a known power of two shifted left a variable amount.

2006-04-18  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
        to hash table twice when the debug_str section has SECTION_MERGE.

2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp: New directory.  From glibc.
        * config/soft-fp/t-softfp: New.
        * config/soft-fp/README: New.
        * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
        * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
        (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
        (LIBGCC_DEPS): Add $(SFP_MACHINE).
        * config.gcc: Use rs6000/t-fprules-fpbit or
        rs6000/t-fprules-softfp and soft-fp/t-softfp together with
        rs6000/t-fprules.
        * config/rs6000/sfp-machine.h: New.  Based on glibc.
        * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
        New.
        * config/rs6000/t-fprules: Remove fp-bit rules.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
        * config/rs6000/t-linux64: Likewise.  Remove duplicates from
        LIB2FUNCS_EXTRA.  Remove fp-bit rules.
        (softfp_wrap_start, softfp_wrap_end): New.

2006-04-18  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (PTRDIFF_TYPE): Define.

2006-04-18  Devang Patel  <dpatel@apple.com>

        * doc/invoke.texi (-Wuninitialized): Clarify -O connection.

2006-04-18  Nick Clifton  <nickc@redhat.com>

        * config/sh/t-symbian: Add rule to build sh-c.o
        * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
        of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
        (sh_symbian_encode_section_info): Likewise.

2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>

        * builtins.c (expand_builtin_strcmp): Cover label definition of
        do_libcall with HAVE_cmpstrnsi.

2006-04-18  Kazu Hirata  <kazu@codesourcery.com>

        * function.c (temp_slots_at_level, max_slot_level): Use VEC
        instead of VARRAY.
        * function.h (temp_slot_p): New.
        (function): Change the type of x_used_temp_slots to
        VEC(temp_slot_p,gc) *.

2006-04-18  Nick Clifton  <nickc@redhat.com>

        * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
        flag_strength_reduce.

        * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27117

        Partial revert of revision 112637
        2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
                    Dale Johannesen  <dalej@apple.com>

        PR target/19653
        * regclass.c (struct reg_pref): Update documentation.
        (regclass): Set prefclass to NO_REGS if memory is the best option.
        (record_reg_classes): Cope with a prefclass set to NO_REGS.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/26821
        * tree-ssa-math-opts.c (get_constant_one): New.
        (insert_reciprocals): Use it.

2006-04-17  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (free_AT): Delete.
        (remove_AT): Update string ref counts.
        (remove_child_TAG): Don't call free_die.
        (free_die): Delete.
        (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
        or DW_TAG_GNU_EINCL.
        (prune_unused_types_walk_attribs): Reset string refcounts.
        (prune_unused_types_update_strings): New.
        (prune_unused_types_prune): Don't make unnecessary stores.  Don't
        call free_die.  Do call prune_unused_types_update_strings.
        (prune_unused_types): Empty debug_str_hash.

2006-04-17  Roger Sayle  <roger@eyesopen.com>

        * expr.c (expand_assignment): Optimize away no-op moves where the
        source and destination are equal and have no side-effects.

2006-04-17  Richard Guenther  <rguenther@suse.de>

        PR target/26826
        * reload.c (push_reload): Guard calls to get_secondary_mem
        for memory subregs.

2006-04-16  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (reg_base_value, old_reg_base_value): Change the
        type to VEC(rtx,gc) *.
        (REG_BASE_VALUE, find_base_value, record_set,
        init_alias_analysis): Use VEC instead of VARRAY.

        * alias.c (alias_sets): Change the type to
        VEC(alias_set_entry,gc) *.
        (get_alias_set_entry, new_alias_set, record_alias_subset): Use
        VEC instead of VARRAY.
        (last_alias_set): Remove.

        * cgraph.h (cgraph_edge_p): New.
        Update the prototype of cgraph_function_versioning.
        * cgraphunit.c (cgraph_copy_node_for_versioning,
        cgraph_function_versioning): Use VEC instead of VARRAY.
        * ipa-cp.c (ipcp_insert_stage): Likewise.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

        PR target/26961
        * fold-const.c (fold_ternary): When converting "A ? B : C" into either
        "A op B" or "A op C", we may need to convert A to the type of B and C.

2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>

        * target.h (struct gcc_target): Add mode_rep_extended.
        * rtlanal.c (num_sign_bit_copies_in_rep): New global.
        (init_num_sign_bit_copies_in_rep): Initialize it using
        mode_rep_extended.
        (truncate_to_mode): Use it.
        (init_rtlanal): Call init_num_sign_bit_copies_in_rep.
        * targhooks.h (default_mode_rep_extended): Declare it.
        * targhooks.c (default_mode_rep_extended): Define it.
        * target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
        default_mode_rep_extended.
        (TARGET_INITIALIZER): Include it.
        * doc/tm.texi (Misc): Document it.
        * config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
        (mips_truncated_to_mode): New function.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/25474
        * expr.c (compress_float_constant): Copy the narrow constant into
        a new pseudo before extending it to its final width.

2006-04-16  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@gcc.gnu.org>
            Dale Johannesen  <dalej@apple.com>

        PR target/24076
        * config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
        special case code to implement V8HImode and V16QImode with SSE2.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_va_start): Ensure all integer constant
        trees are constructed with a suitable tree type.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

        * tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
        (integer_onep): Likewise.
        (integer_all_onesp): Likewise.
        (integer_pow2p): Likewise.
        (integer_nonzerop): Likewise.
        (real_zerop): Likewise.
        (real_onep): Likewise.
        (real_twop): Likewise.
        (real_minus_onep): Likewise.
        (int_size_in_bytes): Likewise.
        (host_integerp): Likewise.

2006-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
        jump.c, mips-tfile.c, omp-low.c, sched-int.h,
        tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.

        * tree-ssa-structalias.h (alias_info): Remove num_references.

2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (output_bb patterns): Shorten long branch alternatives by 4.
        (output_bvb patterns): Likewise.
        * pa.c (output_bb): Use 'bb' insn for long branch case.
        (output_bvb): Likewise use '{bvb|bb}' for long branch case.
        (output_dbra): Use '{comb|cmpb}' for long branch case for alternative
        1.  Correct length operand for alternatives 1 and 2.
        (output_movb): Use '{comb|cmpb}' for long branch case for alternatives
        1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.

2006-04-14  Roger Sayle  <roger@eyesopen.com>

        * tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
        is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
        were accidentally reverted by r112959.

2006-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26823
        * except.h (eh_region_outermost): New prototype.
        * except.c (eh_region_outermost): New function.
        * tree-cfg.c (find_outermost_region_in_block): Use it.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

        * local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
        of VARRAY.
        * reload1.c (reg_equiv_memory_loc_varray): Rename to
        reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
        (init_reload, reload): Use VEC instead of VARRAY.
        * reload.h: Update the prototype for
        reg_equiv_memory_loc_varray.

2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
            Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (emit_and_preserve): Allocate space for the
        register save area.

2005-04-13  Uros Bizjak  <uros@kss-loka.si>

        PR middle-end/27134
        * builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
        to expand fallback builtin function call.

2006-04-14  Alan Modra  <amodra@bigpond.net.au>

        PR middle-end/27095
        * builtins.c: (expand_builtin_memset): Stabilize args before expansion
        and emit libcall here in case the builtin fails.
        (expand_builtin_strcmp): Always emit the libcall here on failure.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
        * flow.c (reg_n_info): Change the type to
        VEC(reg_info_p,heap) *.
        * regclass.c (allocate_reg_info, free_reg_info): Use VEC
        instead of VARRAY.
        * regs.h (reg_info_p): New.
        (REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
        REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
        REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
        instead of VARRAY.

2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>

        * params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
        defaulting to 100.
        * params.h (MAX_SCHED_READY_INSNS): New macro.
        * haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
        past MAX_SCHED_READY_INSNS during the first scheduling pass.
        (schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
        the ready list for 1 cycle during the first scheduling pass.
        * doc/invoke.texi (--param): New parameter max-sched-ready-insns.

2006-04-13  Richard Henderson  <rth@redhat.com>

        PR libgomp/26651
        * gimple-low.c (lower_omp_directive): Remove dead code.
        (lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
        * gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
        * omp-low.c (struct omp_region): Move to tree-flow.h.
        (root_omp_region): Export.
        (omp_regions, lookup_omp_region): Remove.
        (determine_parallel_type): Update for struct omp_region changes.
        (dump_omp_region): Dump regions with block numbers.
        (new_omp_region): Take type and block instead of stmt; malloc
        instead of ggc.
        (free_omp_region_1, free_omp_regions): New.
        (expand_parallel_call): Take entry_stmt as argument; update for
        changes to omp_region.
        (remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
        (remove_exit_barriers): New.
        (expand_omp_parallel): Update for struct omp_region changes.
        (expand_omp_synch): Likewise.
        (expand_omp): Likewise.
        (expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
        (expand_omp_for_static_chunk): Likewise.
        (expand_omp_for): Likewise.
        (expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
        (expand_omp_sections): Similarly, with GOMP_sections_end.
        (expand_omp_single): New.
        (build_omp_regions_1): Update for OMP_CONTINUE.
        (execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
        (lower_omp_sections): Expand with OMP_CONTINUE, do not collect
        OMP_SECTIONS_SECTIONS.
        (lower_omp_single_simple): Don't emit barrier here.
        (lower_omp_single_copy): Likewise.
        (lower_omp_single): Fix bindings, and lower to straightline now.
        (lower_omp_master, lower_omp_ordered): Likewise.
        (lower_omp_critical): Likewise.
        (lower_omp_for): Likewise.  Emit OMP_CONTINUE.
        * tree-cfg.c (make_edges): Collect an omp_region tree, use it for
        omp edges, free it afterward.
        (make_omp_sections_edges): Remove.
        (is_ctrl_altering_stmt): Don't bother checking flag_openmp.
        (move_stmt_r): Handle OMP_CONTINUE.
        * tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
        statement pointers to basic blocks.  Add type member.
        (root_omp_region, new_omp_region, free_omp_regions): Declare.
        * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        * tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
        (OMP_RETURN): Rename from OMP_RETURN_EXPR.
        (OMP_CONTINUE): New.
        * tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
        (OMP_SECTIONS_SECTIONS): Remove.
        (OMP_SECTION_LAST): New.
        (OMP_RETURN_NOWAIT): New.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (native_encode_vector, native_interpret_real):
        Correct obvious mistakes in the previous check-in.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (native_encode_expr): New function to encode
        the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
        or VECTOR_CST into a specified buffer.
        (native_encode_int): New function.
        (native_encode_real): New function.
        (native_encode_complex): New function.
        (native_encode_vector): New function.
        (native_interpret_expr): Inverse of native_encode_expr to convert
        a target representation into an INTEGER_CST, REAL_CST etc...
        (native_interpret_int): New function.
        (native_interpret_real): New function.
        (native_interpret_complex): New function.
        (native_interpret_vector): New function.
        (fold_view_convert_expr): New function to constant fold/evaluate
        a VIEW_CONVERT_EXPR of a suitable constant expression.
        (fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
        Change call of build1 to fold_build1 when constructing a
        VIEW_CONVERT_EXPR.

2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
            Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/27006
        * config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
        to be even.

2006-04-13  Alan Modra  <amodra@bigpond.net.au>

        PR target/26459
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
        optimize to lo_sum for DFmode if !TARGET_FPRS.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-alias.c (set_initial_properties, init_alias_info,
        delete_alias_info, compute_flow_sensitive_aliasing,
        group_aliases): Use VEC instead of VARRAY.
        * tree-ssa-structalias.c (update_alias_info): Likewise.
        * tree-ssa-structalias.h (alias_info): Change the type of
        processed_ptrs to VEC(tree,heap) *.

2006-04-12  J"orn Rennecke <joern.rennecke@st.com>

        PR target/27060
        * config/sh/lib1funcs.h: New file, broken out of:
        * config/sh/lib1funcs.asm.
        * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
        New macros.
        * config/sh/lib1funcs.asm (udivsi3_i4): Use them.
        * config/sh/lib1funcs-Os-4-200.asm: New file.
        * config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
        * config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
        (EXTRA_MULTILIB_PARTS): Include it.
        ($(T)sdivsi3_i4i-Os-4-200.o): New rule.
        ($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
        * config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
        * config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
        TARGET_SH2.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
        * tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
        tpa_compact, root_var_init, type_var_init): Use VEC instead of
        VARRAY.
        * tree-ssa-live.h: Include vecprim.h.
        (tree_partition_associator_d): Change the type of
        first_partition to VEC(int,heap) *.
        (tpa_first_partition): Use VEC instead of VARRAY.

        * Makefile.in (GTFILES): Move functions.h after tree.h.
        * function.c (reset_block_changes, record_block_change,
        check_block_change, free_block_changes): Use VEC instead of
        VARRAY.
        * function.h (function): Change the type of
        ib_boundaries_block to VEC(tree,gc) *.
        * tree-inline.c (copy_cfg_body): Initialize
        ib_boundaries_block to NULL instead of (varray_type) 0.

2006-04-12  Roger Sayle  <roger@eyesopen.com>

        * expr.c (emit_group_store): Correct operand order in call to
        subreg_lowpart_offset.  Always create paradoxical SUBREGs with
        a SUBREG_BYTE of zero.

2006-04-12  Richard Guenther  <rguenther@suse.de>

        * profile.c (compute_branch_probabilities): Remove code
        encapsulated in !ir_type (), which are remanents of the
        removed RTL profiling code.
        * rtl-profile.c: Remove.

2006-04-12  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
        magic NULL_RTX comment.
        (function_arg): Store entire fp arg to mem if any part should go
        on stack.
        (rs6000_arg_partial_bytes): Adjust for above change.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

        * dwarf2out.c (output_call_frame_info): Create debug_frame_section
        if it hasn't been initialized by dwarf2out_init.

2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>

        * pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
        symbolic constants in branch patterns.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

        * caller-save.c: #include "addresses.h" after #include "tm_p.h".

2006-04-11  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/27073
        * gcse.c (try_replace_reg): Revert last change.  Continue to search
        for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
        on the former.

2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
        aggregate types other than record and union types.
        (function_arg): Likewise.
        (function_arg_pass_by_reference): In 64-bit mode, return 0 for
        small arrays.
        (function_value): In 64-bit mode, return objects that require it
        in FP registers.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

        * dwarf2out.c (premark_used_types): Remove problematic prototype.

2006-04-11  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.

2006-04-03  Jeff Law  <law@redhat.com>

        PR/27087
        * tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
        alias information too.

2006-04-10  Mike Frysinger  <vapier@gentoo.org>

        * gcc/Makefile.in (gcc-cross): Add $(exeext) to target name.

2006-04-10  Aldy Hernandez  <aldyh@redhat.com>

        PR/21391
        * dwarf2out.c (struct die_struct): Add die_perennial_p field.
        (premark_used_types_helper): New.
        (premark_used_types): New.
        (gen_subprogram_die): Call premark_used_types.
        (prune_unused_types_walk): Do not prune perennial dies.
        * function.c (used_types_insert): New.
        * function.h (struct function): Add used_types_hash field.
        (used_types_insert): Add prototype.
        * Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
        * c-parser.c (c_parser_cast_expression): Save casted types in used
        types hash table.

2006-04-11  Mark Mitchell  <mark@codesourcery.com>

        PR target/26459
        * config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
        rs6000_explicit_options.float_gprs.

2006-04-10  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
        from ix86_expand_vector_init_low_nonzero.  Take an additional
        one_var argument indicating which element is non-zero.  Support
        one_var != 0 for V4SFmode and V4SImode by permuting the result.
        (ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
        with one_var instead of ix86_expand_vector_init_low_nonzero.

2006-04-10  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
        tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
        global.o, cfglayout.o, lambda-code.o, reg-stack.o,
        build/genextract.o): Depend on vecprim.h.
        * cfglayout.c, df-problems.c, function.c, genextract.c,
        global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
        tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
        vecprim.h.
        * vecprim.h: New.

2006-04-10  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
        Declare VECs of this type.
        (struct die_struct): Make field die_attr a VEC of dw_attr_struct.
        (remove_children): Delete.
        (add_dwarf_attr): Use VEC routines.
        (add_AT_flag): Update for changes to add_dwarf_attr.
        (add_AT_int): Likewise.
        (add_AT_unsigned): Likewise.
        (add_AT_long_long): Likewise.
        (add_AT_vec): Likewise.
        (add_AT_string): Likewise.
        (add_AT_die_ref): Likewise.
        (add_AT_fde_ref): Likewise.
        (add_AT_loc): Likewise.
        (add_AT_loc_list): Likewise.
        (add_AT_addr): Likewise.
        (add_AT_lbl_id): Likewise.
        (add_AT_lineptr): Likewise.
        (add_AT_macptr): Likewise.
        (add_AT_offset): Likewise.
        (add_AT_range_list): Likewise.
        (get_AT): Use VEC_iterate.
        (remove_AT): Use VEC_ordered_remove.
        (free_die): Fold remove_children into here; have it use VEC_iterate.
        (print_die): Use VEC_iterate on attrs.
        (reverse_die_lists): Don't reverse attr lists.
        (die_checksum): Use VEC_iterate on attrs.
        (same_die_p): Likewise.
        (output_location_lists): Likewise.
        (build_abbrev_table): Likewise.
        (size_of_die): Likewise.
        (unmark_all_dies): Likewise.
        (output_abbrev_section): Likewise.
        (output_die): Likewise.
        (prune_unused_types_walk_attribs): Likewise.

2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * doc/install.texi (*-*-solaris2*): Point to the configure page.

2006-04-10  Jakub Jelinek  <jakub@redhat.com>

        PR debug/27057
        * dwarf2out.c (is_symbol_die): Return true also for namespaces.

2006-04-09  Roger Sayle  <roger@eyesopen.com>

        * expr.c (store_constructor): Don't bother clearing target if
        we're about to assign a vector to it using vec_init_optab.

2006-04-10 Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (lhs_may_store_to): New function.
        (recalculate_used_alone): Handle LHS of calls.

2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/27034
        PR target/26508
        * config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
        * pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
        (LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
        (PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
        (PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
        (PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
        section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
        stubs.  Add ".align 8" directives before all ".dword" directives.
        (GTHREAD_USE_WEAK): Revise comment.
        (TARGET_ATTRIBUTE_WEAK): Define.
        * pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
        dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
        * stublib.c: New file.

        PR target/26743
        PR target/11254
        PR target/10274
        * pa.md (cbranch patterns): Revise arguments used in calls to
        output_cbranch, output_bb and output_bvd.  Add long branch length
        attributes.
        (fbranch patterns): Handle long branches.
        (jump): Revise length check.  Revise arguments for output_lbranch call.
        Add long branch length attributes.
        (decrement_and_branch_until_zero): Add long branch length attributes.
        (output_movb, output_parallel_addb and output_parallel_movb patterns):
        Likewise.  Revise arguments for output_parallel_addb and
        output_parallel_movb calls.
        * pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
        output_parallel_movb and output_parallel_addb): Update prototypes.
        * pa.c (output_cbranch): Revise arguments.  Correct handling of
        nullification in long branches.
        (output_lbranch): Add new argument to control extraction of delay
        instruction.
        (output_bb): Handle long branches.
        (output_bvb, output_dbra, output_movb, output_parallel_movb,
        output_parallel_addb): Likewise.

2006-04-09  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/27073
        * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
        not REG_EQUIVs.

2006-04-08  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (tree_memory_tag): Add old_used_alone.
        (SMT_OLD_USED_ALONE): New macro.
        * tree-ssa-alias.c (recalculate_used_alone): Stop
        marking things for renaming unnecessarily.

2006-04-08  Kazu Hirata  <kazu@codesourcery.com>

        * builtins.c, config/arm/arm.c, config/i386/cygwin.h,
        config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
        config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
        haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
        sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
        tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
        tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
        spelling convensions.
        * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
        doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
        typos.  Follow spelling conventions.

2006-04-07  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_function_arg): Structures are always
        passed on the stack.
        (m32c_init_cumulative_args): When a function returns a structure,
        always pass the pointer to that return area on the stack.
        (m32c_function_arg_advance): Don't increment the parameter number
        if we're processing the returned structure pointer.
        (pushm_info): Reverse order of registers.

2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
        assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
        number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
        estimate_numbers_of_iterations_loop): Use build_int_cst instead of
        build_int_cst_type.
        * tree-chrec.c (chrec_fold_multiply_poly_poly,
        chrec_fold_multiply): Same.
        * tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
        force_expr_to_var_cost): Same.
        * tree-mudflap.c (mf_xform_derefs_1): Same.
        * tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.

2006-04-07  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
        treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
        insn.

2006-04-07  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_early_inlining): Collect garbage.

2006-04-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26135
        * tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
        loads for store copy-prop.
        (copy_prop_visit_stmt): Likewise.

2006-04-05  Robert Millan  <robertmh@gnu.org>

        * gcc/config/i386/linux.h:  Add a comment to mark macros that are
        being overriden in config/k*bsd-gnu.h.
        * gcc/config/kfreebsd-gnu.h:  Redefine GLIBC_DYNAMIC_LINKER instead of
        DYNAMIC_LINKER.
        * gcc/config/knetbsd-gnu.h:  Ditto.

2006-04-06  Jan Hubicka  <jh@suse.cz>

        PR profile/20815
        PR profile/26399
        * coverage.c (coverage_checksum_string): Reorganize loop to not read
        after buffer.

2006-04-06  Mike Stump  <mrs@apple.com>

        * builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
        for HAVE_nonlocal_goto to be consistent.
        (expand_builtin_nonlocal_goto): Likewise.
        (expand_builtin_strcmp): Use #ifdef instead of #if
        for HAVE_cmpstrnsi to be consistent.

2006-04-05  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
        vs m32c.

2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
        got-relative addressing for anything but SImode.

        * config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
        even if the calling function doesn't modify them.

2006-04-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26919
        * ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
        to cgraph_estimate_size_after_inlining.

2006-04-05  Alan Modra  <amodra@bigpond.net.au>

        * reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.

2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>

        PR tree-optimization/26996
        * tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
        VECTOR_TYPE variables.

2006-04-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26763
        * fold-const.c (fold_comparison): Move folding of
        PTR + CST CMP PTR + CST ...
        (fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.

2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Prerequisites): Refine some wording on
        bootstrapping and ksh.
        Move the version numbers of DejaGnu here from the testing section
        and fix casing of names.
        Fix markup and clarify wording for autogen requirements.
        Refer to GCJ instead of just java.
        Refer to SVN instead of CVS.
        Describe diffutils as useful instead of necessary.
        (Downloading the source): Refer to SVN instead of CVS.
        Adjust a link to our web site accordingly.
        (Configuration): Fix casing of Bison.
        (Building): Refer to SVN instead of CVS.
        Fix a sentence on the use of Bison and remove duplicate (and
        incorrect) version number of Bison requirement.
        Remove one redundant list of packages needed for building.
        (Specific): Avoid reference to CVS.

2006-04-04  Eric Christopher  <echristo@apple.com>

        * config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
        (TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
        (rs6000_handle_struct_attribute): New.
        (rs6000_ms_bitfield_layout_p): Ditto.

2006-04-04  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
        NULL for dso parameter to atexit_common.

2006-04-04  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.c (machopic_output_stub): Output \t
        between instructions and operands.

2006-04-04  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (num_insns_constant_wide): Change
        satisfies_constraint_[IL] to explicit tests on value.

2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        set_nb_iterations_in_loop): Use build_int_cst instead of
        build_int_cst_type.
        * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
        build_int_cst instead of convert.

2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
        new value 2 for incoming.
        * function.c (expand_function_start): Call struct_value_rtx
        with incoming as 2.
        * config/sparc/sparc.md: Comment updated_return.
        * config/sparc/sparc.opt: Add -mstd-struct-return option.
        * config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
        struct return if sparc_std_struct_return and incoming is 2.
        (print_operand): Do not adjust return if
        sparc_std_struct_return.

2006-04-04  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_sprintf): Use fold_convert instead of
        convert in the middle-end.
        * expr.c (store_expr, store_constructor, get_inner_reference,
        expand_expr_real_1, string_constant, try_casesi, try_tablejump):
        Likewise.
        * tree.c (build_range_type): Likewise.

2006-04-04  Tom Tromey  <tromey@redhat.com>

        * doc/install.texi (Prerequisites): Mention jar.

2006-04-04  Daniel Berlin  <dberlin@dberlin.org>

        * doc/tree-ssa.texi (Preserving the virtual ssa form): New
        subsection.

2006-04-04  Matthias Klose  <doko@debian.org>

        * Makefile.in (unprotoize.o): Same dependencies as for protoize.o.

2006-04-03  Geoffrey Keating  <geoffk@apple.com>

        * doc/extend.texi (Function Attributes): Rewrite visibility
        attribute documentation.
        * doc/invoke.texi (C++ Dialect Options): Rewrite
        -fvisibility-inlines-hidden documentation to describe something
        entirely different, although in practise compatible.
        (Code Gen Options): Warn about system headers in -fvisibiltity=
        documentation.

        * doc/extend.texi (Other Builtins): Document that
        __builtin_nan is a compile-time constant only when its argument
        is valid.

2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
        trying to remove TRUNCATE check if all bits outside the new mode
        are identical to the sign bit.

2006-04-03  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
        and operand scanning in some common cases.

2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
            Dale Johannesen  <dalej@apple.com>

        PR target/19653
        * regclass.c (struct reg_pref): Update documentation.
        (regclass): Set prefclass to NO_REGS if memory is the best option.
        (record_reg_classes): Cope with a prefclass set to NO_REGS.
        * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
        into account.  For non-registers, equate an empty preferred
        reload class to a `!' in the constraint; move the if clause to
        do so after those that reject the insn.
        (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
        return NO_REGS.
        (find_dummy_reload): Likewise.
        * doc/tm.texi (Register Classes): Document what it means
        if PREFERRED_*_RELOAD_CLASS return NO_REGS.
        * config/i386/i386.c (ix86_preferred_reload_class): Force
        using SSE registers (and return NO_REGS for floating-point
        constants) if math is done with SSE.
        (ix86_preferred_output_reload_class): New.
        * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
        * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
        * config/i386/i386.md: Remove # register preferences.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        PR bootstrap/26992
        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
        the type of nb_iter.
        (instantiate_parameters_1): Convert the operands before calling
        chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
        * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (dummy_object): Use build_int_cst instead of convert.
        * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
        instead of convert.
        * dojump.c (do_jump): Likewise.
        * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
        * gimplify.c (gimple_boolify, gimplify_init_constructor,
        gimplify_boolean_expr): Likewise.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
        * varasm.c (array_size_for_constructor): Likewise.
        * tree-object-size.c (compute_object_offset): Likewise.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26977
        * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
        NULL_RTX, indicating it couldn't create a valid paradoxical subreg.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        PR tree-optimization/26939
        * tree-chrec.c (chrec_merge): Use eq_evolutions_p.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
        at_stmt.  Convert the type of operands before calling
        build_polynomial_chrec.
        (add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
        add_to_evolution_1.
        (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
        (instantiate_parameters_1): Convert the type of operands before calling
        build_polynomial_chrec.
        * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
        chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
        reset_evolution_in_loop): Insert asserts to check the types of the
        operands.
        (chrec_type): Moved...
        (eq_evolutions_p): Use operand_equal_p.
        * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
        the types of the operands.
        (chrec_type): ...here.
        * tree-data-ref.c (create_data_ref): Convert the operands before
        calling chrec_replace_initial_condition.
        (same_access_functions, analyze_subscript_affine_affine,
        analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
        (compute_subscript_distance, analyze_ziv_subscript,
        analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
        analyze_miv_subscript): Convert the operands before calling
        chrec_fold_minus or chrec_fold_plus.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-data-ref.c (compute_all_dependences): Use a pointer to
        the dependence_relations vector.
        (compute_data_dependences_for_loop): Adjust call to
        compute_all_dependences.

2006-04-01  Roger Sayle  <roger@eyesopen.com>
            Richard Henderson  <rth@redhat.com>

        * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
        gimple_boolify on the condition before calling gimplify_expr.

2006-03-31  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
        to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
        the frame size.  Update to use the new macros.
        * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
        * config/xtensa/ieee754-df.S: Likewise.

2006-03-31  Richard Henderson  <rth@redhat.com>

        * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
        (make_edges): ... here.  Control fallthru creation with a local
        variable.  Do not play with fake edges.
        (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
        (make_goto_expr_edges): Don't play with fake edges.  Make for_call
        a boolean.

2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>

        * dwarf2.h (DW64_CIE_ID): Define.
        * dwarf2out.c (DWARF_CIE_ID): Define.
        (output_call_frame_info): Output 0xffffffff before standard 8-byte
        length header.  Use DWARF_CIE_ID.
        (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
        dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.

2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-atomic.asm: New file.
        * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.

2006-03-31  DJ Delorie  <dj@redhat.com>

        * config/m32c/cond.md: Set condition flags properly throughout.
        * config/m32c/minmax.md: Likewise.
        * config/m32c/prologue.md: Likewise.
        * config/m32c/bitops.md: Likewise.
        * config/m32c/muldiv.md: Likewise.
        * config/m32c/mov.md: Likewise.
        * config/m32c/addsub.md: Likewise.
        * config/m32c/m32c.md: Likewise.
        * config/m32c/jump.md: Likewise.
        * config/m32c/shift.md: Likewise.

        * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
        conditionally output the pattern for this.
        * config/m32c/m32c.c (flags_needed_for_conditional): New.
        (m32c_compare_redundant): New.
        (m32c_output_compare): New.
        * config/m32c/m32c-protos.h (m32c_output_compare): New.

        * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
        dest, not src.  Allow other 4-byte modes.

2006-03-30  Denis Chertykov  <denisc@overta.ru>

        * doc/md.texi: Refer to avr/constraints.md instead of
        avr/avr.h.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

        * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
        signed vs. unsigned comparison failures on some hosts.

2006-03-31  Alan Modra  <amodra@bigpond.net.au>

        PR target/26459
        * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
        change to FLOAT_REGS.

        * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
        (rs6000_override_options): Use it.
        (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
        only for -mabi=spe/no-spe and -mabi=altivec.

2006-03-30  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
        !Zdynamiclib.

2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Rename docdir to gcc_docdir.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

        PR target/17959
        * expr.c (emit_group_store):  Optimize group stores into a pseudo
        register by using a paradoxical subreg to initialize the destination
        if the first or last member of the group specifies a "low part".

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/26734
        * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
        * target.h (struct gcc_target.speculate_insn): Change type of the
        second parameter to 'int'.
        * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
        the second operand of the DEPS_LIST.
        (copy_DEPS_LIST_list): Update reference to the second operand of the
        DEPS_LIST.
        * rtl.h (alloc_DEPS_LIST): Update signature.
        * sched-int.h (ds_t): Change typedef to 'int'.
        (DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (try_ready): Change condition to restore
        non-speculative pattern of the instruction.
        (process_insn_depend_be_in_spec): Code to keep probability of the
        speculative dependence non-decreasing.

2006-03-30  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
        (single_move_for_movmem): ... this. Also change all uses.
        (bfin_expand_strmov): Renamed to...
        (bfin_expand_movmem): ... this. Also change all uses.
        * config/bfin/bfin.md (movstrsi): Renamed to...
        (movstrsi): ...this.

2006-03-30  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/26830

        * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
        (copy_prop_visit_stmt): Remove write-only variable ann.
        (init_copy_prop): Check variable loop depth here.  Do not simulate
        memory-tag and virtual operand PHIs except for store copy prop.

2006-03-30  Richard Guenther  <rguenther@suse.de>

        * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
        variants with double arguments.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

        * genpreds.c (write_tm_constrs_h): Delete variable p.
        * genconditions.c (write_header): Add tm-constrs.h to included
        headers.
        * genpeep.c (main): Add toplev.h to included headers.
        * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
        (build/genpeep.o): Add toplev.h dependency.
        * config/rs6000/constraints.md: Add "W" constraint.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

        * stor-layout.c (mode_for_size_tree): Remove restiction on type
        sizes by correctly testing whether the size fits a host integer.
        (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
        to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
        SImode range for the default sizetype and bitsizetype.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

        * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
        and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
        quickly if the argument is already of the correct type.
        Call fold_build1 instead of build1.  Tidy up blank lines.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

        * genemit.c (main): Add tm-constrs.h to included headers.
        * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
        * genpeep.c (main): Add tm-constrs.h to included headers.
        * genpreds.c (write_satisfies_constraint_fns): Rename to ...
        (write_tm_constrs_h): this and write complete file.
        (write_tm_preds_h): Do not emit satisfies_constraint fns.
        (write_insn_preds_c): Add tm-constrs.h to included headers.
        (gen_constrs): New variable.
        (parse_option): Parse "-c".
        (main): Invoke write_tm_constrs_h.
        * genrecog.c (write_header): Add tm-constrs.h to included headers.
        * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
        (object_out_file): Add tm-constrs.h dependency.
        (insn-emit.o): Same.
        (insn-output.o): Same.
        (insn-peep.o): Same.
        (insn-preds.o): Same.
        (insn-recog.o): Same.
        (tm-constsr.h): New target.
        (s-constrs-h): New target.

        * config/rs6000/constraints.md: New file.
        * config/rs6000/rs6000.c: Include tm-constrs.h.
        (num_insn_constant_wide): Convert to satisfies_constraint.
        (rs6000_rtx_costs): Convert to satisfies_constraint.
        * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        (EXTRA_MEMORY_CONSTRAINT): Delete.
        (EXTRA_ADDRESS_CONSTRAINT): Delete.
        * config/rs6000/predicates.md: Convert to satisfies_constraint.
        * config/rs6000/rs6000.md: Include constraints.md.  Convert to
        satisfies_constraint.

        * config/i386/i386.c: Include tm-constrs.h.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
        * tree-data-ref.c (find_data_references_in_loop,
        compute_data_dependences_for_loop): Use pointers to VEC.
        (analyze_all_data_dependences): Adjust calls.
        * tree-data-ref.h (find_data_references_in_loop,
        compute_data_dependences_for_loop): Adjust declarations.
        * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
        compute_data_dependences_for_loop.

2006-03-29  Paul Brook  <paul@codesourcery.com>

        * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
        (movdf_vfp): Ditto.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

        PR tree-optimization/26859
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
        division by zero.
        (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
        for the step after fold_convert.

2006-03-29  Paul Brook  <paul@codesourcery.com>

        * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
        (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.

2006-03-29  Paul Brook  <paul@codesourcery.com>

        PR middle-end/23623
        * targhooks.c (default_narrow_bitfield): New fuction.
        * targhooks.h (default_narrow_bitfield): add prototype.
        * target.h (gcc_target): Add narrow_volatile_bitfield.
        * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
        * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
        * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
        * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.

2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
        tmake_file.
        * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
        (NR_C_MODES): Add TDmode, DDmode and SDmode.
        (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
        (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
        (s390_function_arg_float): Allow SDmode and DDmode values to be
        passed in floating point registers.
        (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
        check with SCALAR_FLOAT_MODE_P.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/25985
        * tree-ssa-loop-niter.c (number_of_iterations_le,
        number_of_iterations_ne): Make comments more precise.
        (number_of_iterations_cond): Add only_exit argument.  Use the
        fact that signed variables do not overflow only when only_exit
        is true.
        (loop_only_exit_p): New.
        (number_of_iterations_exit): Pass result of loop_only_exit_p to
        number_of_iterations_cond.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/26643
        * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
        bit_field_refs.

2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
        (divsi3_i4_int): Likewise.

2006-03-28  Roger Sayle   <roger@eyesopen.com>

        * expr.c (emit_group_store): Only create a new pseudo reg if the
        quantity it needs to hold isn't already a suitable pseudo.

2006-03-28  Jeff Law  <law@redhat.com>

        * timevar.def (TV_TREE_PHI_CPROP): New timevar.
        * tree-ssa-dom.c (pass_phi_only_cprop): Use it.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
        the equivalent ~X & Y, and the symmetry related transformations.
        (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
        ~X & Y, and symmetry related transforms.

2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        Revert my 2006-03-27 patches.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
        ~(T1)X, when T1 and T2 are integer types of the same precision
        and (T2)X isn't an extension.

2006-03-28  Jeff Law  <law@redhat.com>

        PR tree-optimization/26796
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
        need EH edge cleanups rather than purging them immediately.
        (eliminate_degenerate_phis): Handle queued EH cleanups.

2006-03-28  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
        from parent_var.

2006-03-27  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/22524
        * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
        cast BIT_NOT_EXPR operand to the correct type.

2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-loop-linear.c: Don't include varray.h.
        (gather_interchange_stats, try_interchange_loops,
        linear_transform_loops): Use VEC instead of VARRAY.
        * lambda-mat.c: Don't include varray.h.
        * tree-chrec.c: Same.
        * lambda-trans.c: Same.
        * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
        VEC instead of VARRAY.
        * tree-vectorizer.h: Idem.
        * tree-data-ref.c (dump_data_references,
        dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
        initialize_data_dependence_relation, finalize_ddr_dependent,
        compute_all_dependences, find_data_references_in_loop,
        compute_data_dependences_for_loop, analyze_all_data_dependences,
        free_dependence_relation, free_dependence_relations,
        free_data_refs): Idem.
        * tree-data-ref.h (data_reference_p, subscript_p): New.
        (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
        VEC instead of VARRAY.
        (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
        (find_data_references_in_loop, compute_data_dependences_for_loop,
        dump_ddrs, dump_dist_dir_vectors, dump_data_references,
        dump_data_dependence_relations, free_dependence_relations,
        free_data_refs): Adjust declaration.
        (lambda_transform_legal_p): Move declaration here...
        * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
        vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
        vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
        vect_analyze_data_refs): Use VEC instead of VARRAY.
        * lambda.h (lambda_transform_legal_p): ...from here.
        * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
        * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
        * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
        tree-chrec.o): Don't depend on VARRAY_H.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * rtl.def (Copyright): Update date.
        (DEPS_LIST): Change type of the second operand to 'int'.
        * target.h (Copyright): Update date.
        (struct gcc_target.speculate_insn): Change type of the second parameter
        to 'int'.
        * lists.c (Copyright): Update date.
        (alloc_DEPS_LIST): Change signature.  Update reference to the second
        operand of the DEPS_LIST.
        (copy_DEPS_LIST_list): Update reference to the second operand of the
        DEPS_LIST.
        * rtl.h (Copyright): Update date.
        (alloc_DEPS_LIST): Update signature.
        * sched-int.h (Copyright): Update date.
        (ds_t): Change typedef to 'int'.
        (DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (Copyright): Update date.
        (try_ready): Change condition to restore non-speculative pattern
        of the instruction.
        (process_insn_depend_be_in_spec): Code to keep probability of the
        speculative dependence non-decreasing.

2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * regrename.c (replace_oldest_value_addr): Initialize a variable to
        shut up the compiler.

2006-03-27  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
        to use lib prefix for target.
        ($(T)libic_invalidate_array_4-200.a): Likewise.
        ($(T)libic_invalidate_array_4a.a): Likewise.

2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
            J"orn Rennecke <joern.rennecke@st.com>

        * superh.opt: New file.
        * sh.c (boardtype, osruntime): Remove.
        * superh.h (SUBTARGET_OPTIONS): Remove.
        * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.

        * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
        arguments with ^ and/or [].

        * config.gcc (sh-*-*): Add quoting to account for quirk of
        Solaris /bin/sh.
        Replace == with = in enable_incomplete_targets test.

        * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
        with MASK_LITTLE_ENDIAN.

        * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
        * config/sh/sh.opt: Added to some comments.
        * config/sh/superh.h: Removed some chaff.

        * config/sh/sh.opt: Add m4-[1234]00* options.
        * config/sh/sh.c (sh_handle_option): Likewise.
        * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
        (ic_invalidate_array_4-100.o): New rule.
        ($(T)libic_invalidate_array_4-100.a): Likewise.
        (ic_invalidate_array_4-200.o): Likewise.
        ($(T)libic_invalidate_array_4-200.a): Likewise.
        (ic_invalidate_array_4a.o): Likewise.
        ($(T)libic_invalidate_array_4a.a): Likewise.
        * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
        * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
        m4-200*, and m4a*.
        * config/sh/crt1.asm: Merged in profiling code.
        * config/sh/superh.h (STARTFILE_SPEC): Override.
        * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
        Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
        * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.

        * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
        * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
        MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.

        * sh.opt (mpretend-cmove): New option.
        * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
        * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
        (movsicc): Add TARGET_PRETEND_CMOVE code.

2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
        s390_class_max_nregs): New function prototypes.
        * config/s390/s390.c (REGNO_PAIR_OK): New macro.
        (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
        * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
        CLASS_MAX_NREGS): Macro bodies replaced by function calls.

2006-03-26  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (add_location_or_const_value_attribute): Call
        tree_add_const_value_attribute if nothing else works.
        (reference_to_unused): New.
        (rtl_for_decl_init): Use reference_to_unused to decide whether
        to output an initializer.

2006-03-27  Alan Modra  <amodra@bigpond.net.au>

        PR target/26459
        * config/rs6000/rs6000.md (DF reg move peephole): Prevent
        peephole removing spe frob_di_df_2.

2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
        (subscript_dependence_tester_1): Declared.
        (print_dir_vectors, print_dist_vectors): New.
        (debug_data_dependence_relation): New.
        (dump_data_dependence_relation): Print more details.
        (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
        (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
        (save_dist_v, save_dir_v, add_outer_distances,
        build_classic_dist_vector_1): New.
        (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
        Don't test for lambda_vector_lexico_pos.
        (same_access_functions, add_multivariate_self_dist,
        add_other_self_distances, dir_from_dist): New.
        (build_classic_dir_vector): Replace implementation almost identical to
        build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
        dir_from_dist.
        (subscript_dependence_tester_1): New.
        (subscript_dependence_tester): Handle the lexicographically negative
        distance vectors by recomputing the dependence relation.
        (compute_affine_dependence): Remove parameter loop_nest_depth.
        (compute_self_dependence): Don't call compute_subscript_distance.
        (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
        Add a parameter for the loop_nest.
        (find_loop_nest_1, find_loop_nest): New.
        (compute_data_dependences_for_loop): Compute the loop nest, and give
        up if the nest is not well formed.
        * tree-data-ref.h (loop_p): New.
        (struct data_dependence_relation): Replace size_vect field with
        loop_nest, a vec of loops.
        (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
        (DDR_LOOP_NEST): New.
        (print_dir_vectors, print_dist_vectors,
        debug_data_dependence_relation): Declared.
        (index_in_loop_nest): New.
        * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
        DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
        distance.

2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_relational_operation): Call
        simplify_relational_operation_1 even if mode is VOIDmode.

2006-03-25  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/26804
        * tree.h (DECL_CALL_CLOBBERED): New macro.
        (tree_decl_common): Add call_clobbered_flag.
        * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
        (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
        (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
        (mark_non_addressable): Ditto.
        * tree-ssa.c (verify_call_clobbered): New function.
        (verify_alias_info): Use it.
        * tree-pass.h (pass_reset_cc_flags): New prototype.
        * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
        (reset_cc_flags): New function.
        * passes.c (init_optimization_passes): Call reset_cc_flags after
        initializing referenced_vars.

2006-03-25  Uros Bizjak  <uros@kss-loka.si>
            Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26717
        * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
        to 1.0 for non-real operands. Implement A / A optimization for
        complex operands.

2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (size_cost): Correct the comment for
        cost of storing fp registers.
        (i386_cost): Likewise.
        (i486_cost): Likewise.
        (pentium_cost): Likewise.
        (pentiumpro_cost): Likewise.
        (k6_cost): Likewise.
        (athlon_cost): Likewise.
        (k8_cost): Likewise.
        (pentium4_cost): Likewise.
        (nocona_cost): Likewise.
        (generic64_cost): Likewise.
        (generic32_cost): Likewise.

2006-03-24  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr-protos.h (extra_constraint): Delete.
        (extra_constraint_Q): New declaration.
        * config/avr/constraints.md: New file.
        * config/avr/avr.md: Include it.
        (REG_X, REG_Y, REG_Z, REG_W): New constants.
        (TMP_REGNO, ZERO_REGNO): Likewise.
        (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
        * config/avr/avr.c (avr_reg_class_from_letter): Delete.
        (extra_constraint): Delete.
        (extra_constraint_Q): Test for memory constraint 'Q'.
        * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
        (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        (TMP_REGNO): Delete.
        (ZERO_REGNO): Delete.

2006-03-24  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
        directly.  Call mark_new_vars_to_rename slightly earlier.

2006-03-24  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
        (is_cxx): Likewise.
        (gen_compile_unit_die): Use new language types for Objective-C and
        Objective-C++.
        (dwarf2out_decl): Use is_cxx rather than testing explicitly against
        DW_LANG_C_plus_plus.

        PR 26793
        * config/t-darwin (crt3.o): Work around bug 26840.
        * config/darwin-crt3.c: Rewrite.
        * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.

2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/invoke.texi: Document -femit-class-debug-always
        * common.opt: Add -femit-class-debug-always.

2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_decompose_address): Allow SImode for
        index and base register.
        (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
        print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
        with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
        REGNO_OK_FOR_INDEX_P.
        * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
        ADDR_REGNO_P.
        (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
        REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
        REG_OK_FOR_BASE_P): Definitions removed.

2006-03-24  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26611
        * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
        non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
        set yet or weren't marked as local yet.

2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * regrename.c (scan_rtx_address): Initialize a variable to shut up
        the compiler.

2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>

        * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
        (rs6000_legitimate_small_data_p): Delete.
        * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
        (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
        and make static.  Add forward declaration.  Update uses.
        (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
        of offsettable_memref_p.
        * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
        Use rs6000_offsettable_memref_p instead of a less accurate predicate.

2006-03-24  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
        around bug in immediate-use iterator.

2006-03-24  Alan Modra  <amodra@bigpond.net.au>

        PR target/26607
        * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
        or __LITTLE_ENDIAN__.

2006-03-23  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
        * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
        * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
        * config/sh/sh.opt (mdiv=): Amend description.
        * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
        (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
        (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
        SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
        (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
        Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
        * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
        (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
        TARGET_DIVIDE_CALL_FP.

2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (choose_ready): Fix type of the local variable.
        Move local variables.  Add comment.
        (check_reg_live): Change signature.  Make callable from debugger.
        * sched-int.h (check_reg_live): Update signature.
        * sched-ebb.c (check_reg_live): Update parameters.
        * sched-rgn.c (check_reg_live): Ditto.
        (region_head_or_leaf_p): Check pointer before dereferencing.
        * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
        before reload on optimization levels below 1.

2006-03-23  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
        tls symbols.

        PR target/26347
        * config/alpha/predicates.md (local_symbolic_operand): Reject
        weak symbols.

2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26795
        * tree-ssa-pre.c (create_value_expr_from): Don't reject
        expressions which have overflowed constants.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

        * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloopmanip.c (create_loop_notes): Removed.
        * final.c (final_scan_insn): Do not handle loop notes.
        * jump.c (squeeze_notes): Ditto.
        * cfglayout.c (skip_insns_after_block,
        duplicate_insn_chain): Ditto.
        * cfgcleanup.c (rest_of_handle_jump2): Do not call
        create_loop_notes.
        * cfgloop.h (create_loop_notes): Declaration removed.

2006-03-23  Richard Sandiford  <richard@codesourcery.com>

        * varasm.c (output_constant_pool): Restore fnname and fndecl
        arguments.
        (assemble_start_function): Adjust call accordingly.
        (assemble_end_function): Likewise.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR mudflap/26789
        * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.

        PR mudflap/26790
        * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR driver/22600
        * system.h (ICE_EXIT_CODE): New macro.
        * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
        (diagnostic_action_after_output): Likewise.
        * gcc.c (fatal_ice): New function.
        (execute): Use it instead of fatal.
        (fancy_abort): Likewise.
        * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.

2006-03-22  Jeff Law  <law@redhat.com>

        * loop-unroll.c (analyze_iv_to_split_insn): Handle
        iv_analyze_result returning false.

2006-03-22  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.

2006-03-22  Richard Henderson  <rth@redhat.com>

        PR middle-end/26084
        * except.c (duplicate_eh_regions_0): New.
        (duplicate_eh_region_1): Duplicate the children of the node as
        well as the node itself.  Link them up properly.
        (duplicate_eh_region_2): Merge into ...
        (duplicate_eh_regions): ... here.  Take copy_region argument, and
        copy only a sub-tree if asked.  Simplify copying and fixup.
        (eh_region_outer_p): New.
        * except.h (duplicate_eh_regions): Update decl.
        (eh_region_outer_p): Declare.
        * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
        (lower_omp_master): Likewise.
        (lower_omp_ordered): Likewise.
        * tree-cfg.c (struct move_stmt_d): Add new_label_map.
        (move_stmt_r): Use it to remap labels.  Handle recursion vs
        remap_decls_p properly.
        (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
        (find_outermost_region_in_block): New.
        (new_label_mapper): New.
        (move_sese_region_to_fn): Copy eh information to the new function
        properly.
        * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
        argument.
        * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
        number.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi (-mshared): Mention that -mshared code can be linked
        into shared libraries.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi: Refer to i386/constraints.md instead of
        i386/predicates.md.
        * config/i386/constraints.md: New file, extracted from...
        * config/i386/predicates.md: ...here.
        * config/i386/i386.md: Include constraints.md.

2006-03-21  Jason Merrill  <jason@redhat.com>

        * builtins.c (expand_builtin_fork_or_exec): Fix pasto.

        PR middle-end/20297
        * expr.c (init_block_move_fn): Force default visibility.
        (init_block_clear_fn): Likewise.
        * builtins.c (expand_builtin_fork_or_exec): Likewise.
        * targhooks.c (default_external_stack_protect_fail): Likewise.

2006-03-21  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/predicates.md (const_call_insn_operand): Allow direct
        calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
        * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
        Use TARGET_OLDABI instead of !TARGET_NEWABI.
        (loadgp): Use mips_current_loadgp_style.
        (loadgp_noshared): New pattern.
        (sibcall_internal): Use MIPS_CALL.
        (sibcall_value_internal): Likewise.
        (sibcall_value_multiple_internal): Likewise.
        (call_internal): Likewise.
        (call_value_internal): Likewise.
        (call_value_multiple_internal): Likewise.
        (call_split): Use MIPS_CALL and add an 'S' constraint.
        (call_value_split): Likewise.
        (call_value_multiple_split): Likewise.
        * config/mips/mips.opt (-mabicalls): Tweak docstring.
        (-mshared): New option.
        * config/mips/mips-protos.h (mips_loadgp_style): New enum.
        (mips_current_loadgp_style): Declare.
        * config/mips/mips.c (mips_classify_symbol): Avoid using
        SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
        rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
        TARGET_ABSOLUTE_ABICALLS.
        (override_options): Adjust comments.  Improve the warning that is
        issued when -mabicalls and -G are used together.
        (mips_file_start): Remove comment.
        (mips_current_loadgp_style): New function.
        (mips_gnu_local_gp): New variable.
        (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
        LOADGP_ABSOLUTE.
        (mips_output_function_prologue): Use mips_current_laodgp_style.
        (mips_expand_prologue): Call mips_emit_loadgp before emitting
        the cprestore instruction.
        (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
        live for TARGET_ABSOLUTE_ABICALLS.
        * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
        (ASM_SPEC): Pass down -mshared and -mno-shared.
        (MIPS_CALL): New macro.
        * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
        definition.
        * doc/invoke.texi (-mabicalls): Update documentation.
        (-mshared): Document.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/unwind-hpux.c: New file.
        * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

        PR libgomp/26384
        * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.

2006-03-21  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
        type conversions of a VR_VARYING source to a wider type.

2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
        tm_file on Solaris 10 and later.
        (sparc64-*-solaris2*): Likewise.
        (sparc-*-solaris2*): Likewise.
        * config/sol26.h: Rename to config/sol2-6.h.
        * config/sol2-10.h: New file.

2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26781
        * tree-ssa-pre.c (create_component_ref_by_pieces):
        Handle STRING_CST.

2006-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/26690
        * tree.c (get_callee_fndecl): If CALL is error_mark_node,
        return it immediately.

2006-03-21  Michael Matz  <matz@suse.de>

        * genautomata.c (<struct state>, num_out_arcs, presence_signature):
        New members.
        (remove_arc, add_arc): Update num_out_arcs member.
        (set_out_arc_insns_equiv_num): Returns nothing instead of number
        of out arcs.
        (cache_presence): New function.
        (compare_states_for_equiv): New function.
        (state_is_differed): Don't take number of outargs, adjust callers.
        Use new invariant for speeding up.
        (init_equiv_class): Create initial classes based on sorted
        input.
        (partition_equiv_class): Don't track out_arcs_num.
        (evaluate_equiv_classes): Call cache_presence on all states and
        sort them.

2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
        * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
        (bfin_valid_reg_p): Test for pseudos explicitly and use only
        REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
        callers changed.
        * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
        (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
        (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
        (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
        REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
        macros.
        (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
        REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
        (REGNO_REG_CLASS): ARGP is in PREGS.
        * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
        IREGS.
        (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
        to deal with those addresses.
        * addresses.h: New file.
        * caller-save.c: Include "addresses.h".
        (init_caller_save): Use new base_reg_class function.
        * rtl-factoring.c: Include "addresses.h".
        (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
        * recog.c: Include "addresses.h".
        (preprocess_constraints): Use new base_reg_class function.
        * regrename.c: Include "addresses.h".
        (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
        functions.  Keep track of a new var INDEX_CODE to compute valid
        classes.
        (replace_oldest_value_addr): Likewise.
        (replace_oldest_value_mem): Use base_reg_class.
        * reload.c: Include "addresses.h".
        (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
        (find_reloads): Use new base_reg_class function.
        (find_reloads_address): Likewise; also use regno_ok_for_base_p.
        (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
        all callers and prototype changed.
        * reload1.c: Include "addresses.h".
        (maybe_fix_stack_asms): Use base_reg_class.
        * regclass.c: Include "addresses.h".
        (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
        (init_reg_autoinc): Use new base_reg_class function.
        (record_reg_classes): Likewise.
        (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
        OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
        Use new args to compute necessary class.

        * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
        regrename.o, rtl-factoring.o): Update dependencies.
        * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
        (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
        (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
        REG_OK_FOR_INDEX_P): Delete documentation.

2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>

        * config.gcc (sparc-*-solaris2*): Change the default CPU setting
        from V7 to V9 for Solaris 7 and above.

2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>

        * doc/invoke.texi: Document new flag -fargument-noalias-anything.
        * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
        argument pointers may not alias any other storage.
        * common.opt: Define option -fargument-noalias-anything.
        * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
        alias semantics is specified by flag_argument_noalias > 2.

2006-03-20  Jeff Law  <law@redhat.com>

        * tree-pass.h (pass_phi_only_copy_prop): Delete.
        (pass_phi_only_cprop): Declare.
        * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
        with phi_only_cprop
        * tree-ssa-dom.c (degenerate_phi_result): New function.
        (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
        (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
        (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
        (eliminate_degenerate_phis): Likewise.
        (pass_phi_only_cprop): New pass descriptor.
        * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
        support code.  Callers updated.
        (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
        (store_copy_prop): Likewise.
        (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.

2006-03-20  Jason Merrill  <jason@redhat.com>

        PR c++/21764
        * c-pragma.c (visstack): Move out of handle_pragma_visibility.
        (push_visibility, pop_visibility): Likewise.
        * c-pragma.h: Declare them.

2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.

        * config/sh/sh.c (find_regmode_weight): Change the type of the first
        parameter and use get_ebb_head_tail.
        (sh_md_init_global): Adjust uses of find_regmode_weight.

2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>

        * function.h (struct function) <x_tail_recursion_reentry>:
        Rename to x_stack_check_probe_note.
        (tail_recursion_reentry): Rename to stack_check_probe_note.
        * function.c: Replace tail_recursion_reentry with
        stack_check_probe_note everywhere.
        (expand_function_start): Only emit a note for
        stack_check_probe_note with -fstack-protect.
        * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.

        * emit-rtl.c (remove_unnecessary_notes): Remove.
        (pass_remove_unnecessary_notes): Remove.
        * rtl.h (remove_unnecessary_notes): Remove prototype.
        * final.c (final_start_function): Don't call remove_unnecessary_notes.
        * tree-pass.h (pass_remove_unnecessary_notes): Remove.
        * passes.c (pass_remove_unnecessary_notes): Don't run it.

2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26629
        * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
        (valid_in_set): Handle ARRAY_REF.
        Change "if min_variant or VH" to asserts.
        (create_component_ref_by_pieces): Handle ARRAY_REF.
        (create_expression_by_pieces): Likewise.
        (can_PRE_operation): ARRAY_REFs can now be PRE'd.

2006-03-20  David Edelsohn  <edelsohn@gnu.org>

        * genpreds.c (write_insn_extra_address_constraint): Argument `c'
        is operand of switch, not str[0].

2006-03-20  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_handle_option): Use
        TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

        * genpreds.c (write_tm_preds_h): Add semicolon and newline at
        end of insn_extra_address_constraint declaration.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
        (no-sum-in-toc): Same.
        * config/rs6000/rs6000.c (rs6000_handle_option): Use new
        variables.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
        NO_FP_IN_TOC for -fPIC instead of mask.

        * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
        (BOOT_LDFLAGS): Delete.
        (LDFLAGS): Delete.
        * config/rs6000/t-aix52: Same.

        * config/rs6000/rs6000.md (store_multiple_power): Delete.
        (stmsi[345678]_power): New.

2006-03-17  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.opt: Add empty line to end of file.

2006-03-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26721
        * builtins.c (get_pointer_alignment): For component style references
        adjust alignment to the component type alignment.  Make sure
        to adjust alignment for component access of constants.

2006-03-17  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.md (strlensi): Emit barrier after
        unconditional jump.

2006-03-17  Paul Brook  <paul@codesourcery.com>

        * doc/install.texi: Docuemnt --with-mode.
        * config.gcc: Add --with-mode for arm*-*-*.
        * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".

2006-03-17  J"orn Rennecke <joern.rennecke@st.com>

        * sh.c (max_labelno_before_reorg): New variable.
        (sh_reorg): Initialize it.
        (find_barrier): Check max_labelno_before_reorg before using
        label_to_alignment.  Take length of explicit alignment insns
        into account.  When seeing a UNSPECV_CONST_END, return it.

        * sh.c (fixup_mova): Set mode of affected label to QImode.
        (untangle_mova): New function.
        (find_barrier): Use it.  Check mode of label before decrementing
        num_mova.
        (sh_reorg): Likewise.
        Set mode of all insns back to VOIDmode.

        * sh.c (MOVA_LABELREF): New macro.
        (mova_p, fixup_mova, sh_reorg): Use it.
        (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
        ADDR_DIFF_VEC matches mova.

2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>

        * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
        with ATTRIBUTE_UNUSED.

2006-03-17  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
        pointer, instead of assuming it is possible to derive the
        correct args size from a call insn.

2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * rtl.h (CONST_INT_P): Define.
        * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
        instead of GET_CODE(x) == CONST_INT.
        (vax_rtx_costs): Likewise.
        (vax_output_int_move): Likewise.
        (vax_output_int_add): Likewise.
        (legitimate_constant_address_p): Likewise.
        (index_term_p): Likewise.
        * config/vax/vax.h (PRINT_OPERAND): Likewise.
        * config/vax/vax.md (and<mode>3): Likewise.
        (ashrsi3): Likewise.
        (extv): Likewise.
        (movstricthi): Likewise.
        (movstrictqi): Likewise.
        (rotrsi3): Likewise.
        (five unnamed insns): Likewise.

2006-03-16  Geoffrey Keating  <geoffk@apple.com>

        * doc/tm.texi (SDB and DWARF): Add extra parameter to
        ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
        * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
        * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
        Pass to ASM_OUTPUT_DWARF_OFFSET.
        * dwarf2out.c (debug_frame_section): New.
        (output_call_frame_info): Use debug_frame_section.  Pass it to
        dw2_asm_output_offset.
        (output_die): Pass appropriate section to dw2_asm_output_offset.
        (output_compilation_unit_header): Likewise.
        (output_pubnames): Likewise.
        (output_aranges): Likewise.
        (enum dw_val_class): Break dw_val_class_lbl_offset into
        dw_val_class_lineptr and dw_val_class_macptr.
        (add_AT_lbl_offset): Delete.
        (add_AT_lineptr): New.
        (add_AT_macptr): New.
        (AT_lbl): Expect a lineptr or macptr.
        (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
        (attr_checksum): Likewise.
        (same_dw_val_p): Likewise.
        (size_of_die): Likewise.
        (value_format): Likewise.
        (output_die): Likewise.
        (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
        add_AT_lbl_offset.
        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
        * config/i386/i386.c (x86_file_start): Call darwin_file_start.
        * config/darwin-protos.h (darwin_file_start): New.
        (darwin_asm_output_dwarf_offset): New.
        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
        * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
        darwin_file_start.
        * config/darwin.c (darwin_emit_unwind_label): Don't output label
        if not EH section; simplify.
        (darwin_file_start): New.
        (darwin_asm_output_dwarf_offset): New.
        * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
        mark as 'debug'.
        (DEBUG_INFO_SECTION): Likewise.
        (DEBUG_ABBREV_SECTION): Likewise.
        (DEBUG_ARANGES_SECTION): Likewise.
        (DEBUG_MACINFO_SECTION): Likewise.
        (DEBUG_LINE_SECTION): Likewise.
        (DEBUG_LOC_SECTION): Likewise.
        (DEBUG_PUBNAMES_SECTION): Likewise.
        (DEBUG_STR_SECTION): Likewise.
        (DEBUG_RANGES_SECTION): Likewise.
        (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
        (ASM_OUTPUT_DWARF_OFFSET): New.

2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>

        * config.gcc (tm_defines): Always add to previous value rather
        than replacing it.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/predicates.md (splittable_const_int_operand): New,
        split from move_operand.
        (splittable_symbolic_operand): New.
        (move_operand): Add commentary.  Use splittable_const_int_operand.
        Inline mips_atomic_symbolic_constant_p.
        * config/mips/mips.md: Add combine splitters for handling moves
        of splittable_const_int_operands and splittable_symbolic_operands.
        * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
        (mips_split_symbol): Declare.
        (mips_move_integer): Declare.
        * config/mips/mips.c (mips_split_p): Make global.
        (TARGET_MIN_ANCHOR_OFFSET): Override default.
        (TARGET_MAX_ANCHOR_OFFSET): Likewise.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
        (mips_offset_within_object_p): Handle block symbols.
        (mips_atomic_symbolic_constant_p): Delete.
        (mips_cannot_force_const_mem): Return false for constants that
        mips_legitimize_move can handle.
        (mips_use_blocks_for_constant_p): New function.
        (mips_split_symbol): Make global.
        (mips_move_integer): Likewise.  Add a temporary register argument.
        (mips_legitimize_const_move): Use splittable_const_int_operand and
        splittable_symbolic_operand.
        (mips_use_anchors_for_symbol_p): New function.
        * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
        (mips_split_p): Declare.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
        (mips*-*-linux*): Likewise.

2006-03-16  Roger Sayle  <roger@eyesopen.com>
            Daniel Speyer  <dspeyer@wam.umd.edu>

        PR middle-end/18259
        * tree-dump.c (dump_real): New function.
        (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
        * Makefile.in (REAL_H): New macro for dependencies on real.h.
        (tree-dump.o): Add $(REAL_H) to the dependencies.

2006-03-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/21781
        * real.c (real_from_string): If the mantissa is zero, don't bother
        parsing the exponent as the result should always be zero.

2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>

        * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * config/ia64/ia64.c (stops_p): Added explicit initialization.
        (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
        ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
        ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
        ia64_sched_finish_global): New static functions to implement
        hooks from gcc_target.sched.
        (spec_check_no, max_uid, pending_data_specs): New static variables.
        (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
        ia64_spec_check_src_p): New static functions.
        (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
        (TARGET_SCHED_ADJUST_COST): Removed.
        (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
        TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
        TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
        TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): New macros.
        (update_set_flags, group_barrier_needed, set_src_needs_barrier):
        Fixed to handle speculation checks.
        (rtx_needs_barrier): Fixed to handle speculative loads and
        their checks.
        (ia64_variable_issue): Added code to count speculative loads and their
        checks.
        (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
        speculative loads.
        (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
        New enumerations.
        (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
        New constants.
        (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
        (ia64_reorg): Reset stops_p to NULL after it is freed.
        * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
        UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
        (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
        chk_a.
        (data_speculative, control_speculative, check_load): New attributes.
        (mov<mode>_advanced, mov<mode>_speculative,
        mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
        zero_extend<mode>di2_speculative,
        zero_extend<mode>di2_speculative_advanced): New patterns for
        data and control speculative loads.
        (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
        check loads.
        (advanced_load_check_clr_<mode>, speculation_check_<mode>):
        New pattern for data and control speculation checks.
        (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
        ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
        reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
        Auxiliary definitions for the patterns.
        * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
        1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
        constraints.
        (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
        for speculation.
        (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
        * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
        2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
        New resource constraints.
        (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
        for speculation.
        (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
        * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
        msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
        msched-in-control-spec, msched-ldc, msched-control-ldc,
        msched-spec-verbose, msched-prefer-non-data-spec-insns,
        msched-prefer-non-control-spec-insns,
        msched-count-spec-in-critical-path): New flags to tune speculative
        scheduling.
        * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
        msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
        msched-in-control-spec, msched-ldc, msched-control-ldc,
        msched-spec-verbose, msched-prefer-non-data-spec-insns,
        msched-prefer-non-control-spec-insns,
        msched-count-spec-in-critical-path): Document new flags.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * target.h (struct spec_info_def): New opaque declaration.
        (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
        speculate_insn, needs_block_p, gen_check,
        first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
        * target-def.h (TARGET_SCHED_ADJUST_COST_2,
        TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
        TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
        gcc_target.sched.
        (TARGET_SCHED): Use new macros.
        * rtl.h (copy_DEPS_LIST_list): New prototype.
        * sched-int.h (struct sched_info): Change signature of new_ready field,
        adjust all initializations. New fields: add_remove_insn,
        begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
        region_head_or_leaf_p.
        (struct spec_info_def): New structure declaration.
        (spec_info_t): New typedef.
        (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
        recovery_block, orig_pat.
        (glat_start, glat_end): New variables declaraions.
        (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
        New access macros.
        (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
        DETACH_LIFE_INFO, USE_GLAT.
        (enum SPEC_SCHED_FLAGS): New enumeration.
        (NOTE_NOTE_BB_P): New macro.
        (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
        attach_life_info, debug_spec_status, check_reg_live): New functions.
        (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
        all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
        sched-ebb.c
        (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
        * ddg.c (get_block_head_tail): Adjust all uses.
        * modulo-sched.c (get_block_head_tail): Adjust all uses.
        (sms_sched_info): Initialize new fields.
        (contributes_to_priority): Removed.
        * haifa-sched.c (params.h): New include.
        (get_block_head_tail): Adjust all uses.
        (ISSUE_POINTS): New macro.
        (glat_start, glat_end): New global variables.
        (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
        nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
        old_last_basic_block, before_recovery, current_sched_info_var,
        rgn_n_insns, luid): New static variables.
        (insn_cost1): New function.  Move logic from insn_cost to here.
        (find_insn_reg_weight1): New function.  Move logic from
        find_insn_reg_weight to here.
        (reemit_notes, move_insn, max_issue): Change signature.
        (move_insn1): Removed.
        (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
        extend_bb): New static functions to support extension of scheduler's
        data structures.
        (generate_recovery_code, process_insn_depend_be_in_spec,
        begin_speculative_block, add_to_speculative_block,
        init_before_recovery, create_recovery_block, create_check_block_twin,
        fix_recovery_deps): New static functions to support
        generation of recovery code.
        (fix_jump_move, find_fallthru_edge, dump_new_block_header,
        restore_bb_notes, move_block_after_check, move_succs): New static
        functions to support ebb scheduling.
        (init_glat, init_glat1, attach_life_info1, free_glat): New static
        functions to support handling of register live information.
        (associate_line_notes_with_blocks, change_pattern, speculate_insn,
        sched_remove_insn, clear_priorities, calc_priorities, bb_note,
        add_jump_dependencies): New static functions.
        (check_cfg, has_edge_p, check_sched_flags): New static functions for
        consistancy checking.
        (debug_spec_status): New function to call from debugger.
        (priority): Added code to handle speculation checks.
        (rank_for_schedule): Added code to distinguish speculative instructions.
        (schedule_insn): Added code to handle speculation checks.
        (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
        Fixed to handle ebbs.
        (move_insn): Added code to handle ebb scheduling.
        (max_issue): Added code to use ISSUE_POINTS of instructions.
        (choose_ready): Added code to choose between speculative and
        non-speculative instructions.
        (schedule_block): Added code to handle ebb scheduling and scheduling of
        speculative instructions.
        (sched_init): Initialize new variables.
        (sched_finish): Free new variables.  Print statistics.
        (try_ready): Added code to handle speculative instructions.
        * lists.c (copy_DEPS_LIST_list): New function.
        * sched-deps.c (extend_dependency_caches): New function.  Move logic
        from create_dependency_caches to here.
        (get_dep_weak, ds_merge): Make global.
        * genattr.c (main): Code to output prototype for
        dfa_clear_single_insn_cache.
        * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
        (output_dfa_clean_insn_cache_func): Code to output
        dfa_clear_single_insn_cache function.
        * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
        n_insns.
        (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
        Removed.
        (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
        New static variables.
        (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
        fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
        struct sched_info.
        (ebb_sched_info): Initialize new fields.
        (get_block_head_tail): Adjust all uses.
        (compute_jump_reg_dependencies): Fixed to use glat_start.
        (schedule_ebb): Code to remove unreachable last block.
        (schedule_ebbs): Added code to update register live information.
        * sched-rgn.c (region_sched_info): Initialize new fields.
        (get_block_head_tail): Adjust all uses.
        (last_was_jump): Removed.  Adjust users.
        (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
        add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
        Implement new hooks.
        (check_dead_notes1): New static function.
        (struct region): New fields: dont_calc_deps, has_real_ebb.
        (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
        (BB_TO_BLOCK): Fixed to handle EBBs.
        (EBB_FIRST_BB, EBB_LAST_BB): New macros.
        (ebb_head): New static variable.
        (debug_regions, contributes_to_priority): Fixed to handle EBBs.
        (find_single_block_regions, find_rgns, find_more_rgns): Initialize
        new fields.
        (compute_dom_prob_ps): New assertion.
        (check_live_1, update_live_1): Fixed to work with glat_start instead of
        global_live_at_start.
        (init_ready_list): New assertions.
        (can_schedule_ready_p): Split update code to begin_schedule_ready.
        (new_ready): Add support for BEGIN_CONTROL speculation.
        (schedule_insns): Fixed code that updates register live information
        to handle EBBs.
        (schedule_region): Fixed to handle EBBs.
        (init_regions): Use extend_regions and check_dead_notes1.
        * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
        PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
        * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
        TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
        TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): Document.
        * doc/invoke.texi (max-sched-insn-conflict-delay,
        sched-spec-prob-cutoff): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
        inter_tick, queue_index.
        (struct sched_info): Change signature of init_ready_list field.
        Adjust all initializations.
        (RESOLVED_DEPS): New access macro.
        (ready_add): Remove prototype.
        (try_ready): Add prototype.
        * sched-rgn.c (init_ready_list): Use try_ready.
        (schedule_region): Initialize
        current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
        * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
        (init_ready_list): Use try_ready.
        (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
        * lists.c (remove_list_elem): Remove `static'.
        (remove_free_INSN_LIST_elem): New function.
        * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
        * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
        (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
        New constants.
        (readyp): New variable.
        (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
        change_queue_index, resolve_dep): New static functions.
        (try_ready): New function.  Adjust callers in sched-rgn.c and
        sched-ebb.c to use it instead of ready_add.
        (clock_var): Move at the begining of file.
        (rank_for_schedule): Fix typo.
        (queue_insn): Add assertion.  Handle QUEUE_INDEX.
        (ready_lastpos): Enforce assertion.
        (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
        update all callers.
        (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
        (schedule_insn): Rewrite to use try_ready and resolve_dep.
        (queue_to_ready): Use free_INSN_LIST_list.
        (early_queue_to_ready): Fix typo.
        (schedule_block): Init readyp.  Move init_ready_list call after the
        initialization of clock_var.  Fix error in rejecting insn by
        targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
        that previously corrected INSN_TICKs.  Add code for handling
        QUEUE_INDEX.
        (set_priorities): Fix typo.
        (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
        Clarify comment and code that keeps current_sched_info->next_tail
        non-null.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * sched-rgn.c (extend_rgns): New static function.
        (find_rgns): Use it.
        (gather_region_statistics, print_region_statistics): New static
        functions.
        * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
        * doc/invoke.texi (max-sched-extend-regions-iters): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
            Andrey Belevantsev <abel@ispras.ru>

        * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
        * lists.c (unused_deps_list): New variable.
        (free_list): Add assertions to verify the proper distinguishing
        between INSN_LISTs and DEPS_LISTs.
        (find_list_elem, remove_list_elem, remove_list_node): New static
        functions.
        (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
        remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
        remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
        (alloc_INSN_LIST): Assert that the list we're working on is indeed
        an INSN_LIST.
        (free_INSN_LIST_node): Likewise.
        * modulo-sched.c (current_sched_info): Initialize flags field.
        * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
        * rtl.def (DEPS_LIST): Define.
        * rtl.h: Declare new functions from lists.c.
        * sched-deps.c (spec_dependency_cache): New static variable.
        (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
        (add_dependence): Change return type to void.  Move the logic to ...
        (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
        (delete_all_dependences): Add comment about forward_dependency_cache.
        Handle spec_dependency_cache.  Handle DEPS_LISTs.
        (fixup_sched_groups): Clarify the change of priority of output
        and anti dependencies.
        (sched_analyze_2): Adjust add_dependence calls to create data
        speculative dependence.
        (add_forward_dependence): Renamed to add_forw_dep, change prototype.
        Adjust all callers.  Handle DEPS_LISTS.
        (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
        presence of speculation.
        (init_dependency_caches, free_dependency_caches):
        Handle spec_dependency_cache.
        (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
        estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
        New static functions.
        (add_or_update_back_dep, add_or_update_back_forw_dep,
        add_back_forw_dep, delete_back_forw_dep): New functions.
        * sched-int.h (ds_t, dw_t): New typedefs.
        (struct sched_info): Add new field flags.
        (struct haifa_insn_data): Add new bitfield has_internal_dep.
        Prototype new sched-deps.c functions.
        (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
        (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
        MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
        BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
        SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
        SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
        New constants.
        (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
        New enums.
        * sched-rgn.c (current_sched_info): Initialize flags field.
        (schedule_insns): Initialize current_sched_info before the sched_init
        call.
        * sched-ebb.c (current_sched_info): Initialize flags field.
        (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
        Call add_or_update_back_dep instead of add_dependence.
        Create control speculative dependencies.
        (schedule_insns): Initialize current_sched_info before the sched_init
        call.

2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
        fs->signal_frame.
        (sh_fallback_frame_state): Likewise.

2006-03-15  Geoffrey Keating  <geoffk@apple.com>

        * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
        Do switch on default_use_cxa_atexit.
        (powerpc*-*-darwin*): Build crt2.o on powerpc.
        * config/darwin-crt3.o: New.
        * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
        to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
        (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
        OS version.
        * config/rs6000/t-darwin: Move crt2.o building to here.
        * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
        Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
        of __cxa_atexit.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/vax/vax.c (nonindexed_address_p): Change logical negation
        from '! xxx' to '!xxx' for coding-style conformance.
        * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
        (EXTRA_CONSTRAINT): Likewise.
        * config/vax/vax.md (four unnamed insns): Likewise.

2006-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (minipool_pad): New.
        (add_minipool_forward_ref): Include pool alignment padding in address
        calculation.
        (push_minipool_fix): Set minipool_pad.
        (minipool_pad): Ditto.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/vax/vax.c (split_quadword_operands): Use MEM_P()
        instead of GET_CODE() == MEM and REG_P() instead of
        GET_CODE() == REG.
        (print_operand_address): Likewise.
        (vax_address_cost): Likewise.
        (vax_rtx_costs): Likewise.
        (vax_notice_update_cc): Likewise.
        (vax_output_int_add): Likewise.
        (INDEX_REGISTER_P): Likewise.
        (BASE_REGISTER_P): Likewise.
        (nonindexed_address_p): Likewise.
        (vax_mode_dependent_address_p): Likewise.
        * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
        (PRINT_OPERAND): Likewise.
        * config/vax/vax.md (ashlsi3): Likewise.
        (ashlsi3): Likewise.
        (some more unnamed insns): Likewise.

2006-03-15  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
        iterator-style macro.
        (mark_control_dependent_edges_necessary): Update the use of
        EXECUTE_IF_CONTROL_DEPENDENT.

2006-03-15  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/predicates.md (cache_address_operand): Special.
        (ua_address_operand): Likewise.

2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>

        * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
        loop notes.
        * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.

2006-03-15  Andreas Schwab  <schwab@suse.de>

        * gensupport.c (identify_predicable_attribute): Don't free p_false
        when it is still in use.

2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
        the default setting here.

2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>

        * tree-pass.h (pass_cfg): Remove.
        * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
        * passes.c (pass_cfg): Don't run it.

2006-03-14  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
        * reg-stack.c (stack_regs_mentioned_data): Change the type to
        VEC(char,heap) *.
        (stack_regs_mentioned): Update the uses of
        stack_regs_mentioned_data.  Don't access the array beyond its
        end.
        (reg_to_stack): Update the uses of stack_regs_mentioned_data.
        Don't include gt-reg-stack.h.

        * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
        * system.h (UNALIGNED_WORD_ASM_OP): Poison.

        * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.

        PR middle-end/26684
        * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
        STACK_REGS.

2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26672
        * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
        SSA form.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26667
        * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
        node for the callees.  Always allow inlining if it will shrink
        the function size.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26659
        * builtins.c (get_pointer_alignment): Prefer alignment
        information from decls over that from types.

2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26657
        * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.

2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.opt (mdlmzb): New option.
        (msched-prolog, msched-epilog): Use Var not Mask.
        * doc/invoke.texi (-mdlmzb): Document.
        * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        MASK_SCHED_PROLOG.
        (rs6000_override_options): Enable -mdlmzb for 405 and 440.
        * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.

2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>

        PR rtl-optimization/25739
        * bt-load.c (augment_live_range): Free tos pointer.

        * gensupport.c (identify_predicable_attribute): Free
        p_false pointer.
        * gcov.c (create_file_names): Free name pointer.

2006-03-13  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26557
        * stmt.c (emit_case_nodes): Handle the case where the index is a
        CONST_INT, where the comparison mode is specified by the index type.

2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
        is defined.

2006-03-13  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
        (*branch_fp_inverted): Likewise.

2006-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/25989
        * omp-low.c (expand_omp_for_generic): Mark istart0
        and iend0 as addressable.

2006-03-13  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.

2006-03-13  Jeff Law  <law@redhat.com>

        * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
        virtual operands are interesting.
        (vrp_visit_stmt): Corresponding changes.

2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
        of RETS.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
        TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
        * config/bfin/crti.S: Use it instead of __PIC__.
        * config/bfin/crtn.S: Likewise.

        * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
        call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
        not if flag_pic.
        Lose 'G' modifier for call operand.
        * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
        recognize 'G' modifier.

2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/18859
        * gimplify.c (gimplify_switch_expr): Discard empty ranges.
        * stmt.c (expand_case): Likewise.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26254
        * loop-invariant.c (seq_insns_valid_p): New function.
        (move_invariant_reg): Only emit new code if it is valid.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
        Removed.
        (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
        (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
        (commit_one_edge_insertion): Do not look for loop notes.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * jump.c (follow_jumps): Do not check for loop notes.  Move check for
        flag_test_coverage out of loop.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * final.c (shorten_branches): Remove outdated comment, and turn
        the if branch that guards it to continue.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
        * cfgloop.h (struct loop): Remove unused fields.

2006-03-13  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-fdump-rtl-loop): Remove.
        (-dL, -fdump-rtl-loop2): Update the dump file names

        * doc/invoke.texi: Update dump file names.

2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>

        * predict.c (estimate_probability): Remove.
        * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
        * basic-block.h (estimate_probability): Remove prototype.
        * passes.c (finish_optimization_passes): Dump branch prediction or
        profiling heuristics to the .profile tree dump.
        (init_optimization_passes): Unqueue pass_branch_prob.

        * doc/invoke.texi (-fdump-rtl-bp): Remove.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
        * rtl.h (LABEL_NEXTREF): Remove field accessor.

2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>

        * function.h (frame_offset_overflow): Declare.
        * function.c (frame_offset_overflow): New function.
        (assign_stack_local_1): Call it to detect that the offset overflows.
        * cfgexpand.c (alloc_stack_frame_space): Likewise.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        * config/sh/sh.c: Include alloc-pool.h.
        (label_ref_list_pool): New alloc pool.
        (label_ref_list_t): New type for lists of labels.
        (struct pool_node): Make wend a label_ref_list_t.
        (add_constant): Use the new type, eradicate LABEL_NEXTREF
        references.
        (dump_table): Likewise.
        (sh_reorg): Set up the alloc pool before using add_constant and
        dump_table, and destroy it when finishing.

2006-03-11  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c: Remove redundant comment.

2006-03-10  Jason Merrill  <jason@redhat.com>

        PR c/26004
        * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
        the target was declared 'register'.

2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>

        * genpreds.c (write_insn_constraint_len): Change definition of
        insn_constraint_len to return size_t to match the declaration.

2006-03-10  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
        start at zero.
        (m32c_expand_insv): Fix test for an AND mask.

2006-03-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26565
        * builtins.c (get_pointer_alignment): Handle component
        references for field alignment.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

        * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
        when building with libgloss.
        (sh*elf): Implement --without-fp option.
        (sh64-superh-linux*): Don't multilib.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

        * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.

2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
        Set it when one of the replacement functions returned true.
        Return TODO_cleanup_cfg if cfgchanged is true.
        (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.

2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
        instead of gen_lowpart.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h (mips_output_conditional_branch): Change
        interface.
        (mips_output_order_conditional_branch): Declare.
        * config/mips/mips.h (MIPS_BRANCH): New macro.
        * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
        for the comparison.  Use gen_condjump.
        (mips_output_conditional_branch): Rework interface to take the
        asm templates for a direct branch and the inverse of a direct branch.
        (mips_output_order_conditional_branch): New function.
        (mips_builtin_branch_and_move): New function.
        (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
        branch condition.  Use gen_single_cc as the condition for
        __builtin_mips_upper_* or __builtin_mips_lower_*.
        (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
        Use VOIDmode for the branch condition.
        * config/mips/predicates.md (order_operator): New predicate.
        * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
        (branch_fp): Rename to...
        (*branch_fp): ...this.  Remove mode from comparison operator.
        Use new mips_output_conditional_branch interface.
        (branch_fp_inverted): Rename to...
        (*branch_fp_inverted): ...this and update as for *branch_fp.
        (*branch_zero<mode>): Rename to...
        (*branch_order<mode>): ...this.  Remove mode from comparison operator.
        Use mips_output_order_conditional_branch.  Only accept ordered
        comparisons.
        (*branch_zero<mode>_inverted): Rename to...
        (*branch_order<mode>_inverted): ...this and update as for
        *branch_order<mode>.
        (*branch_equality<mode>): Accept zero as the second operand to
        the equality operator.  Use the new mips_output_conditional_branch
        interface.
        (*branch_equality<mode>_inverted): Likewise.
        (condjump): New expander.
        * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
        operator.
        * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
        (bc1any2t, bc1any2f): Likewise.
        (single_cc): New expander.
        (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi: Update documentation of MIPS constraints.
        * config/mips/constraints.md: New file.
        * config/mips/mips.md: Include it.
        * config/mips/mips.c (mips_char_to_class): Delete.
        (override_options): Don't initialize mips_char_to_class.
        * config/mips/mips.h (mips_char_to_class): Delete.
        (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT_Y): Delete.
        (EXTRA_CONSTRAINT_STR): Delete.
        (CONSTRAINT_LEN): Delete.
        (EXTRA_MEMORY_CONSTRAINT): Delete.

2006-03-09  Diego Novillo  <dnovillo@redhat.com>

        * tree-cfg.c (move_block_to_fn): Remove the statements from the
        original fn's eh regions.

2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (build_range_check): Make sure to use a valid type to
        apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
        transformation.

        (range_predecessor): New static function.
        (range_successor): Likewise.
        (merge_ranges): Use them to compute predecessors and successors of
        range bounds.

2006-03-09  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26561
        * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
        X op C3, consider whether C3 overflows towards +Inf or -Inf.

2006-03-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/addsub.md (addqi3): Disparage a0/a1.
        (addpsi3): Expand to include memory operands.  Remove
        reload-specific splits.
        * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
        (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
        (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
        (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
        (shift1_qi, shift1_hi, insv): New.
        * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
        (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
        cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
        cond_to_int): New.
        * config/m32c/m32c-protos.h: Update as needed.
        * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
        default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
        Fail for unrecognized R* constraints.
        (m32c_cannot_change_mode_class): Be more picky about pseudos.
        (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
        (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
        Add Sp constraint.
        (m32c_init_libfuncs): New.
        (m32c_legitimate_address_p): Add debug wrapper.
        (m32c_rtx_costs): New.
        (m32c_address_cost): New.
        (conversions): Add 'B' prefix.
        (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
        operands, or word regnames for QI operands.  'B' prints bit
        position.
        (m32c_expand_setmemhi): New.
        (m32c_expand_movmemhi): New.
        (m32c_expand_movstr): New.
        (m32c_expand_cmpstr): New.
        (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
        (m32c_expand_neg_mulpsi3): Handle non-ints.
        (m32c_cmp_flg_0): New.
        (m32c_expand_movcc): New.
        (m32c_expand_insv): New.
        (m32c_scc_pattern): New.
        * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
        a0/a1 out of SIregs.
        (STORE_FLAG_VALUE): New.
        * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
        code macros.
        (no_insn): New.
        * config/m32c/mov.md: Make constraints more liberal.
        (zero_extendqihi2): Optimize r0/r1 case.
        * config/m32c/muldiv.md (mulpsi3): Check for intvals.
        * config/m32c/predicates.md (m32c_any_operand): New.
        (m32c_nonimmediate_operand): New.
        (m32c_hl_operand): New.
        (m32c_r3_operand): New.
        (ap_operand): New.
        (ma_operand): New.
        (memsym_operand): New.
        (memimmed_operand): New.
        (a_qi_operand): New.
        (m32c_eqne_operator): New.
        (m32c_1bit8_operand): New.
        (m32c_1bit16_operand): New.
        (m32c_1mask8_operand): New.
        (m32c_1mask16_operand): New.
        * config/m32c/blkmov.md: New file.
        * config/m32c/t-m32c (MD_FILES): Add blkmov.

2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>

        * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
        unsigned to fix signed/unsigned comparison issue in
        DWARF2_FRAME_REG_OUT.
        (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
        unsigned comparison issue in DWARF2_FRAME_REG_OUT.

        * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
        of ptr into the ENABLE_CHECKING section.

2006-03-08  Jeff Law  <law@redhat.com>

        * tree-vrp.c (infer_value_range): Only count pointer uses
        and dereferences if -fdelete-null-pointer-checks is enabled.

        * tree-vrp.c (find_assert_locations): Infer value ranges for
        single use pointers, but do not create ASSERT_EXPRs for them.
        When a non-null range is inferred for a pointer, backwards
        propagate that range to other equivalent pointers through the
        use-def chain.

2006-03-08  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/26500
        * Makefile.in (dvi, html, install-info): Invoke the corresponding
        language hook targets.
        * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
        objcp/Make-lang.in: Create stub rules for dvi, html, install-info
        if language hook targets were missing.

2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-opfinalize.h: Removed.
        * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
        dependency.
        * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
        (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
        INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
        add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
        finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
        finalize_ssa_v_must_def_ops): New.

2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
        block as parameter.

2006-03-07  Geoffrey Keating  <geoffk@apple.com>

        * varasm.c (assemble_end_function): Say that 'fnname' is unused.

        * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
        addresses with offsets; reorganize.

        * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
        (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
        (expand_builtin_init_dwarf_reg_sizes): Likewise.

2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>

        PR target/26588
        * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.

2006-03-08  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h (CMPtype): Typedef to a word mode integer.

2006-03-07  Aldy Hernandez  <aldyh@redhat.com>

        PR gomp/26238
        * doc/passes.texi (Tree-SSA passes): Document omp lowering and
        expansion.

2006-03-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26587
        * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

        * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

        * hooks.c (hook_bool_mode_rtx_true): New function.
        * hooks.h (hook_bool_mode_rtx_true): Declare.
        * toplev.c (compile_file): Call output_shared_constant_pool.
        * varasm.c (shared_constant_pool): New variable.
        (assemble_start_function, assemble_end_function): Remove arguments
        from call to output_constant_pool.
        (create_constant_pool): New function, split out from...
        (init_varasm_status): ...here.
        (force_const_mem): Choose between the shared and per-function constant
        pools.  Set current_function_uses_const_pool when reusing old entries
        as well as when creating new ones.
        (mark_constant): Ignore data argument.
        (mark_constants): Remove pool argument.
        (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
        to decide whether the function uses a constant pool.
        (output_constant_pool_contents): New function, split out from...
        (output_constant_pool): ...here.
        (output_shared_constant_pool): New function.
        (init_varasm_once): Initialize shared_constant_pool.
        * output.h (output_constant_pool): Delete.
        (output_shared_constant_pool): Declare.
        * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
        * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.

2006-03-06  Nick Clifton  <nickc@redhat.com>

        * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
        flag_strength_reduce.

2006-03-06  Ben Elliston  <bje@au.ibm.com>

        * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
        x86_64-*-linux* configurations.

        * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
        (LIBGCC2_WORDS_BIG_ENDIAN): Define.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
        Remove.
        * basic-block.h: Remove the extern for
        rediscover_loops_after_threading.

        * cfgloop.c (cancel_loop): Make it static.
        * cfgloop.h: Remove the prototype for cancel_loop.

        * flow.c (recompute_reg_usage): Make it static.
        * rtl.h: Remove the prototype for recompute_reg_usage.

        * function.c (use_return_register): Make it static.
        * function.h: Remove the prototype.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * recog.c (volatile_mem_p, validate_change_maybe_volatile):
        Remove.
        * recog.h: Remove the prototype for
        validate_change_maybe_volatile.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (replace_reg): Remove.
        * rtl.h: Remove the prototype for replace_reg.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * regclass.c (reg_scan_update): Remove.
        (reg_scan_mark_refs): Remove the last argument.
        * rtl.h: Remove the prototype for reg_scan_update.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
        combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
        config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
        config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
        df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
        loop-invariant.c, omp-low.c, opts.c, passes.c,
        rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
        tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
        tree-ssa-structalias.c, tree-ssa-threadedge.c,
        tree-ssa-threadupdate.c, tree-vect-patterns.c,
        tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
        unwind-dw2.c: Fix comment typos.  Follow spelling conventions.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
        * dwarf2out.h: Remove the prototype for
        dwarf2out_add_library_unit_info.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * tree.c (add_var_to_bind_expr): Remove.
        * tree.h: Remove the prototype for add_var_to_bind_expr.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * regclass.c (n_non_fixed_regs): Remove.
        (init_reg_sets_1, globalize_reg): Remove all uses of
        n_non_fixed_regs.
        * hard-reg-set.h: Remove the extern for n_non_fixed_regs.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (insns_safe_to_move_p): Remove.
        * rtl.h: Remove the prototype for insns_safe_to_move_p.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * expmed.c (expand_mult_add): Remove.
        * expr.h: Remove the prototype for expand_mult_add.

2006-03-04  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
        and REG_SAVED_VAL_EXP constants.
        * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Handle regs stored by value.
        (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
        (execute_cfa_program): Handle DW_CFA_val_offset,
        DW_CFA_val_offset_sf and DW_CFA_val_expression.
        (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
        value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
        (uw_install_context_1): Handle target regs stored by value.

2006-03-03  Daniel Berlin  <dberlin@dberlin.org>

        * tree-sra.c (tree_sra): Return todoflags;
        (generate_one_element): Set TODO_update_smt_usage if needed.
        (pass_sra): Remove TODO_update_smt_usage.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
        parameter.
        (tree_ssa_forward_propagate_single_use_vars): Return
        TODO_update_smt_usage if we need to update SMT usage.
        (pass_forwprop): Remove TODO_update_smt_usage.

2006-03-03  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
        (correct_use_link): Remove reference to get_stmt_operands.
        (update_stmt_operands): Likewise.
        (get_modify_expr_operands): New function factored out of
        parse_ssa_operands and get_expr_operands.
        Try to create V_MUST_DEFs for LHS by default.
        (get_expr_operands) <case MODIFY_EXPR>: Call
        get_modify_expr_operands.
        <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
        <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
        (parse_ssa_operands) <case MODIFY_EXPR>: Call
        get_modify_expr_operands.

2006-03-03  Kazu Hirata  <kazu@codesourcery.com>

        * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
        * tree-flow.h: Remove the prototype for
        referenced_var_lookup_if_exists.

2006-03-03  Steve Ellcey  <sje@cup.hp.com>

        PR rtl-optimization/26345
        PR target/19061
        * config/ia64/predicates.md (basereg_operand): Don't look in subregs.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26524
        * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
        fold_convert to create a constant of the appropriate type.

2006-03-03  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
        of SYMBOL_FLAG_IN_BLOCK.