2008-04-25 H.J. Lu <hongjiu.lu@intel.com>

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

2008-04-25  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (mov<mode>): Replace SSEMODEI with
        SSEMODE.
        (*mov<mode>_internal): Likewise.  Support V4SF and V2DF.
        (mov<mode>): Removed.
        (*movv4sf_internal): Likewise.
        (*movv2df_internal): Likewise.

2008-04-25  Pompapathi V Gadad <Pompapathi.V.Gadad@nsc.com>

        * config.gcc (crx-*-elf): Remove deprecation.

2008-04-25  Danny Smith  <dannysmith@users.sourceforge.net>

        * config/i386/cygming-crtend.c (register_frame_ctor): Register
        __gcc_deregister_frame with atexit.
        (deregister_frame_dtor): Remove.

2008-04-24  Nathan Froyd  <froydnj@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/rs6000/rs6000.opt (mspe): Remove Var property.
        (misel): Likewise.
        * config/rs6000/rs6000.h (rs6000_spe): Declare.
        (rs6000_isel): Likewise.
        * config/rs6000/rs6000.c (rs6000_spe): New variable.
        (rs6000_isel): New variable.
        (rs6000_handle_option): Handle OPT_mspe and OPT_misel.

2008-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/35758
        * c-common.c (handle_vector_size_attribute): Call
        lang_hooks.types.reconstruct_complex_type instead of
        reconstruct_complex_type.
        * config/rs6000/rs6000.c (rs6000_handle_altivec_attribute): Likewise.
        * config/spu/spu.c (spu_handle_vector_attribute): Likewise.
        * langhooks.h (struct lang_hooks_for_types): Add
        reconstruct_complex_type hook.
        * langhooks-def.h (LANG_HOOKS_RECONSTRUCT_COMPLEX_TYPE): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add it.

2008-04-24  Richard Guenther  <rguenther@suse.de>

        * c-common.h (check_builtin_function_arguments): Declare.
        * c-common.c (validate_nargs): New function.
        (check_builtin_function_arguments): Likewise.
        * c-typeck.c (build_function_call): Call
        check_builtin_function_arguments.
        * builtins.c (fold_builtin_classify): Remove error reporting code.
        (fold_builtin_unordered_cmp): Likewise.
        (fold_builtin_1): Likewise.
        (fold_builtin_n): Likewise.

2008-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/36008
        * fold-const.c (try_move_mult_to_index): If s == NULL, divide
        the original op1, rather than delta by step.

2008-04-22  Antoniu Pop  <antoniu.pop@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

        * tree-parloops.c (take_address_of, eliminate_local_variables_1,
        eliminate_local_variables_stmt, eliminate_local_variables,
        separate_decls_in_loop_name, separate_decls_in_loop_stmt,
        separate_decls_in_loop, gen_parallel_loop): Make them work on a region
        of code delimited by two edges in the CFG.
        (separate_decls_in_loop_name): Renamed separate_decls_in_region_name.
        (separate_decls_in_loop_stmt): Renamed separate_decls_in_region_stmt.
        (separate_decls_in_loop): Renamed separate_decls_in_region.  Isolate 
        the case of parallelisation of reductions.
        (expr_invariant_in_region_p): New.

        * tree-flow.h (gather_blocks_in_sese_region): Declared.
        * tree-cfg.c (gather_blocks_in_sese_region): Extern.

2008-04-24  Ira Rosen  <irar@il.ibm.com>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/36034
        * tree-vect-analyze.c (vect_analyze_group_access): SLP is
        incapable of dealing with loads with gaps.

2008-04-24  Rafael Espindola  <espindola@google.com>

        * tree-flow.h (vrp_evaluate_conditional): Change signature.
        * tree-ssa-propagate.c (fold_predicate_in): Update call to
        vrp_evaluate_conditional.
        * tree-vrp.c (vrp_evaluate_conditional_warnv): Remove.
        (vrp_evaluate_conditional): Split the cond argument.
        (vrp_visit_cond_stmt): Use vrp_evaluate_conditional_warnv_with_ops.
        (simplify_stmt_for_jump_threading): Update call to
        vrp_evaluate_conditional.

2008-04-24  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/35982
        * tree-vect-analyze.c (vect_check_interleaving): Check that the
        interleaved data-refs are of the same type.

2008-04-24  Danny Smith  <dannysmith@users.net>

        * c-format.c (check_format_info_main): Use strncmp rather than a
        magic prefix to handle multichar length specs.
        * config/i386/msformat-c.c (format_length_info ms_printf_length_specs):
        Don't prefix "I64" and "I32" with '\0'.

2008-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/36015
        * config/i386/i386.c (init_cumulative_args): Don't pass anything
        in registers for -m32 only if stdarg_p (fntype).

2008-04-24  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/36006
        * expmed.c (store_fixed_bit_field): Copy op0 rtx before moving
        temp to op0 in order to avoid invalid rtx sharing.

2008-04-23  Paolo Bonzini  <bonzini@gnu.org>

        * tree-cfg.c (verify_expr): Check with is_gimple_address.  Don't
        check TREE_INVARIANT.
        * tree-gimple.c (is_gimple_address): New.
        (is_gimple_invariant_address): Simplify using decl_address_invariant_p.
        * tree-gimple.h (is_gimple_address): New.
        * tree.h (decl_address_invariant_p): New.
        * tree.c (make_node_stat): Don't set TREE_INVARIANT.
        (build_string): Likewise.
        (decl_address_invariant_p): New, from is_gimple_invariant_address.
        (tree_invariant_p_1): Likewise.
        (save_expr): Use it.
        (tree_invariant_p): New.
        (skip_simple_arithmetic): Use it.
        (stabilize_reference_1): Use it.
        (recompute_tree_invariant_for_addr_expr): Don't update TREE_INVARIANT,
        simplify.
        (build1_stat): Drop code to compute TREE_INVARIANT.
        (build2_stat): Drop code to compute TREE_INVARIANT.
        (build3_stat): Drop code to compute TREE_INVARIANT.
        (build4_stat): Drop code to compute TREE_INVARIANT.
        (build5_stat): Drop code to compute TREE_INVARIANT.
        (build7_stat): Drop code to compute TREE_INVARIANT.
        (merge_dllimport_decl_attributes): Don't mention TREE_INVARIANT.
        * tree.h (struct tree_base): Remove invariant_flag.
        (TREE_INVARIANT): Remove.
        * builtins.c (build_string_literal): Don't set TREE_INVARIANT.
        (fold_builtin_expect): Check TREE_CONSTANT.
        * tree-ssa-ccp.c (fold_stmt_r): Adjust comment.
        * c-tree.h (c_expr_to_decl): Drop third parameter.
        * c-typeck.c (build_external_ref): Don't set TREE_INVARIANT.
        (build_c_cast): Don't set TREE_INVARIANT.
        (pop_init_level): Don't set TREE_INVARIANT.
        (c_objc_common_truthvalue_conversion): Don't set TREE_INVARIANT.
        * gimplify.c (gimplify_init_ctor_preeval): Add assertion, test
        TREE_CONSTANT.
        (gimplify_init_constructor): Don't set TREE_INVARIANT.
        (gimplify_addr_expr): Adjust comment.
        * tree-mudflap.c (mf_build_string):
        * print-tree.c (print_node): Don't print TREE_INVARIANT.
        * tree-nested.c (convert_nonlocal_reference): Adjust comment.
        * c-common.c (fix_string_type): Don't set TREE_INVARIANT.
        * langhooks-def.h (lhd_expr_to_decl): Drop third parameter.
        * langhooks.c (lhd_expr_to_decl): Drop third parameter.
        * langhooks.h (struct lang_hooks): Drop third parameter from
        expr_to_decl.

2008-04-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27799
        PR tree-optimization/32921
        PR tree-optimization/32624
        * tree-ssa-structalias.c (merge_smts_into): Only merge the
        SMTs aliases and the tag itself into the solution.
        * tree-ssa-alias.c (compute_flow_sensitive_aliasing): Do not
        merge the points-to solution back into the SMT aliases.
        (may_alias_p): Use alias_set_subset_of instead of
        aliases_conflict_p.  A pointer which points to
        memory with alias set zero may access any variable.

2008-04-23  Richard Guenther  <rguenther@suse.de>

        * alias.c (alias_set_subset_of): Correctly handle asking
        if zero is a subset of an alias set with zero child.
        * tree-ssa-alias.c (have_common_aliases_p): Simplify logic.
        (compute_flow_insensitive_aliasing): Correctly walk all
        pointers.  Do not unnecessarily union sets.

2008-04-23  Richard Guenther  <rguenther@suse.de>

        PR middle-end/36021
        * c-common.c (handle_alloc_size_attribute): Use type_num_arguments.

2008-04-22  Tomas Bily  <tbily@suse.cz>

        * tree-cfg.c (verify_expr): Check for NON_LVALUE_EXPR as
        unreachable case.
        * tree-vrp.c (extract_range_from_unary_expr): Removed unused
        NON_LVALUE_EXPR.
        * tree-ssa-threadedge.c (simplify_control_stmt_condition): Likewise.
        * tree-ssa-structalias.c (get_constraint_for): Likewise.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        * varasm.c (const_hash_1, compare_constant, copy_constant)
        (compute_reloc_for_constant, output_addressed_constants): Likewise.
        * emit-rtl.c (component_ref_for_mem_expr)
        (set_mem_attributes_minus_bitpos): Likewise.
        * expr.c (highest_pow2_factor, expand_expr_real_1, )
        (is_aligning_offset): Likewise.
        * dwarf2out.c (loc_descriptor_from_tree_1, add_bound_info): Likewise.
        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): Likewise.
        * dojump.c (do_jump): Likewise.
        * builtins.c (get_pointer_alignment, get_memory_rtx)
        (integer_valued_real_p, fold_builtin_next_arg): Likewise.
        * tree-scalar-evolution.c (instantiate_parameters_1): Likewise.

2008-04-23  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/36017
        * builtins.c (expand_errno_check): Clear CALL_EXPR_TAILCALL before
        expanding the library call.

2008-04-22  Ian Lance Taylor  <iant@google.com>

        * fold-const.c (pointer_may_wrap_p): Call int_size_in_bytes rather
        than size_in_bytes.

2008-04-22  Pat Haugen  <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.c (rs6000_register_move_cost): Increase cost
        of LR/CTR moves for Power6.

2008-04-22  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR middle-end/36003
        * passes.c (init_optimization_passes): Remove
        pass_fast_rtl_byte_dce.
        
2008-04-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/29096
        * config/i386/xmmintrin.h (_mm_cvtpi16_ps): Rearrange calls to
        builtin functions to generate faster code.
        (_mm_cvtpu16_ps): Ditto.
        (_mm_cvtpi32x2_ps): Ditto.

2008-04-22  Nick Clifton  <nickc@redhat.com>

        * common.opt (ftree-loop-distribution): Add Optimization
        attribute.

        * config/frv/frv.c (frv_stack_info): Use crtl instead of cfun.
        (frv_expand_builtin_va_start): Likewise.

        * config/arm/arm.c (thumb_find_work_register): Fix location of
        argument register count.

2008-04-22  Maxim Kuvyrkov  <maxim@codesourcery.com>

        Support scheduling for ColdFire V1 and V3 microarchitecture.
        Improve scheduling of multiplication instructions.

        * config/m68k/m68k.md (cpu): Add cfv1 and cfv3.  Rename cf_v2 to cfv1.
        (mac): New instruction attribute.
        * config/m68k/m68k.c (override_options): Handle cfv1, cfv3 and mac.
        (m68k_sched_mac): New variable.
        (m68k_sched_attr_type2, m68k_sched_md_init_global): Update.
        Handle cfv1 and cfv3.
        (max_insn_size): New static variable.
        (struct _sched_ib): New type.
        (sched_ib): New static variable.
        (sched_ib_size, sched_ib_filled, sched_ib_insn): Convert variables
        to fields of 'struct _sched_ib sched_ib'.  Update all uses.
        (m68k_sched_variable_issue): Add modeling of cfv3 instruction buffer.
        Update.
        (m68k_sched_md_init_global, m68k_sched_md_finish_global,
        m68k_sched_md_init, m68k_sched_md_finish): Handle cfv1 and cfv3.  Init
        new variables.  Update.
        (m68k_sched_dfa_pre_advance_cycle, m68k_sched_dfa_post_advance_cycle):
        Add modeling of cfv3 instruction buffer.  Update.
        * config/m68k/m68k-protos.h (m68k_sched_mac): Declare.
        * config/m68k/m68k.h (TUNE_CFV3): New macro.
        * config/m68k/cf.md: Change substrings 'cf_v2' to 'cfv12' or 'cfv123'.
        (cf_* reservations): Rename to cfv12 or cfv123 to indicate cores
        a particular reservation applies to.
        (type2): Reorganize attribute values.  Rename alu to alu_reg,
        alu_l to alu, move_l to omove.  Join move to alu.  Split mul
        to mul_l and mul_w.
        (cf_ib_*): Simplify description of instruction buffer.
        (cf_ib_w0, cf_ib_w4, cf_ib_w5, cf_ib_w6): Remove.
        (cf_mem): Split into cf_mem1 and cf_mem2.
        (cf_v2_move_??): Rename to cfv12_alu_??.
        (cf_v2_move_l_??): Rename to cfv12_omove_??.
        (cf_v2_mul_??): Remove reservations.
        (cfv12_mul_l_??, cfv12_mul_w_??, cfv12_mac_w_??, cfv12_mac_l_??,
        cfv12_emac_??, cfv12_emac_w_i0): New reservations.
        (cfv12_rts, cfv12_call, cfv12_bcc, cfv12_bra, cfv12_jmp): Move to
        appropriate place.
        (cfv3_alu_10, cfv3_omove_10, cfv3_alu_i0, cfv3_omove_i0, cfv3_alu_01,
        cfv3_alu_0i, cfv3_alu_11, cfv3_omove_11, cfv3_alu_i1, cfv3_omove_i1,
        cfv3_alu_1i, cfv3_omove_1i, cfv3_pea_11, cfv3_pea_i1, cfv3_mul_w_10,
        cfv3_mul_l_10, cfv3_mul_w_i0, cfv3_mac_w_10, cfv3_mac_l_10,
        cfv3_mac_w_i0, cfv3_emac_10, cfv3_emac_w_i0, cfv3_rts, cfv3_call,
        cfv3_bcc, cfv3_bra, cfv3_jmp): New reservations.
        (cfv3_*_1, cfv3_*_2, cfv3_*_3): New instruction reservations that are
        expansions of the above reservations for instructions of sizes
        1, 2 and 3 words.

2008-04-22  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * rtl-factoring.c (collect_patterns_seqs): Handle CC0 targets.

2008-04-21  Adam Nemet  <anemet@caviumnetworks.com>

        * coverage.c: Include tree-pass.h.
        (coverage_counter_alloc): Print da_file_name to the dump file.

2008-04-21  Kenneth Zadeck <zadeck@naturalbridge.com>

        * sbitmap.c (sbitmap_range_empty_p): New function.
        * sbitmap.h (sbitmap_range_empty_p): New function.
        * bitmap.h: Now includes obstack.h.

2008-04-21  Richard Sandiford  <rsandifo@nildram.co.uk>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        * dbgcnt.def (ra_byte_scan): Added.
        * dbgcnt.c (dbg_cnt): Added code to print message to dump_file
        when the last hit happens for a counter.  
        * timevar.def (TV_DF_BYTE_LR): New variable.
        * tree-pass.h (pass_fast_rtl_byte_dce): New pass.
        * passes.c (pass_fast_rtl_byte_dce): New pass.
        * fwprop.c (update_df): Added mode to call df_ref_create.
        Renamed DF_REF_WIDTH and DF_REF_OFFSET to DF_REF_EXTRACT_WIDTH and
        DF_REF_EXTRACT_OFFSET.
        * df.h (DF_BYTE_LR, DF_BYTE_LR_BB_INFO, DF_BYTE_LR_IN, 
        DF_BYTE_LR_OUT, df_byte_lr): New macro.
        (df_mm): New enum.
        (df_ref_extract): Added mode field.
        (DF_REF_WIDTH, DF_REF_OFFSET) Renamed to DF_REF_EXTRACT_WIDTH and
        DF_REF_EXTRACT_OFFSET.
        (DF_REF_EXTRACT_MODE): New macro.
        (df_byte_lr_bb_info): New structure.
        (df_print_byte_regset, df_compute_accessed_bytes, 
        df_byte_lr_add_problem, df_byte_lr_get_regno_start,
        df_byte_lr_get_regno_len, df_byte_lr_simulate_defs,
        df_byte_lr_simulate_uses,
        df_byte_lr_simulate_artificial_refs_at_top,
        df_byte_lr_simulate_artificial_refs_at_end,
        df_compute_accessed_bytes): New function.
        (df_ref_create): Add parameter.
        (df_byte_lr_get_bb_info): New inline function.
        * df-scan.c (df_ref_record, df_uses_record,
        df_ref_create_structure): Added mode parameter.
        (df_ref_create, df_notes_rescan, df_ref_record, df_def_record_1, 
        df_defs_record, df_uses_record, df_get_conditional_uses,
        df_get_call_refs, df_insn_refs_collect, df_bb_refs_collect, 
        df_entry_block_defs_collect, df_exit_block_uses_collect):
        Added mode parameter to calls to df_ref_record, df_uses_record,
        df_ref_create_structure.
        (df_ref_equal_p, df_ref_compare): Added test for modes.
        (df_ref_create_structure): Added code to set mode.  Renamed
        DF_REF_WIDTH and DF_REF_OFFSET to DF_REF_EXTRACT_WIDTH and
        DF_REF_EXTRACT_OFFSET.
        * df-core.c (df_print_byte_regset): New function.
        * df-byte-scan.c: New file.
        * df-problems.c (df_rd_transfer_function): Removed unnecessary
        calls to BITMAP_FREE.  
        (df_byte_lr_problem_data, df_problem problem_BYTE_LR): New structure.
        (df_byte_lr_get_regno_start, df_byte_lr_get_regno_len,
        df_byte_lr_set_bb_info, df_byte_lr_free_bb_info, 
        df_byte_lr_check_regs, df_byte_lr_expand_bitmap, 
        df_byte_lr_alloc, df_byte_lr_reset, df_byte_lr_bb_local_compute,
        df_byte_lr_local_compute, df_byte_lr_init,
        df_byte_lr_confluence_0, df_byte_lr_confluence_n, 
        df_byte_lr_transfer_function, df_byte_lr_free, 
        df_byte_lr_top_dump, df_byte_lr_bottom_dump,
        df_byte_lr_add_problem, df_byte_lr_simulate_defs, 
        df_byte_lr_simulate_uses,
        df_byte_lr_simulate_artificial_refs_at_top,
        df_byte_lr_simulate_artificial_refs_at_end): New function.
        * dce.c (byte_dce_process_block): New function.
        (dce_process_block): au is now passed in rather than computed
        locally.  Changed loops that look at artificial defs to not look
        for conditional or partial ones, because there never are any.  
        (fast_dce): Now is able to drive byte_dce_process_block or 
        dce_process_block depending on the kind of dce being done.
        (rest_of_handle_fast_dce): Add parameter to fast_dce.
        (rest_of_handle_fast_byte_dce): New function.
        (rtl_opt_pass pass_fast_rtl_byte_dce): New pass.
        * Makefile.in (df-byte-scan.o, debugcnt.o): Added dependencies.

2008-04-21  Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/35019
        * gcc.h: Added fortran options that take arguments to
        DEFAULT_SWITCH_TAKES_ARG and DEFAULT_WORD_SWITCH_TAKES_ARG
        macros.

2008-04-20  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-sra.c (sra_walk_expr) <VIEW_CONVERT_EXPR>: Disable
        scalarization if on the LHS and not a full access.

2008-04-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * Makefile.in (s-gtyp-input): Remove tmp-gi.list before writing it.

2008-04-18  Rafael Espindola  <espindola@google.com>

        * tree-vrp.c (find_case_label_index): Fix the binary search.
        (find_case_label_range): New.
        (vrp_visit_switch_stmt): Use find_case_label_range.
        (simplify_switch_using_ranges): Use find_case_label_range.

2008-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_modify_expr_rhs) <COND_EXPR>: Gimplify the LHS
        using the is_gimple_lvalue predicate instead of is_gimple_min_lval.

2008-04-18  Tom Tromey  <tromey@redhat.com>

        PR libcpp/15500:
        * doc/cpp.texi (Implementation-defined behavior): Mention
        -finput-charset.

2008-04-18  Ian Lance Taylor  <iant@google.com>

        * fold-const.c (pointer_may_wrap_p): New static function.
        (fold_comparison): Add another test for pointer overflow.  Use
        pointer_may_wrap_p to disable some false positives.

2008-04-18  Kris Van Hees <kris.van.hees@oracle.com>
          
        * c-common.c (CHAR16_TYPE, CHAR32_TYPE): New macros.
        (fname_as_string): Match updated cpp_interpret_string prototype.
        (fix_string_type): Support char16_t* and char32_t*.
        (c_common_nodes_and_builtins): Add char16_t and char32_t (and
        derivative) nodes.  Register as builtin if C++0x.
        (c_parse_error): Support CPP_CHAR{16,32}.
        * c-common.h (RID_CHAR16, RID_CHAR32): New elements. 
        (enum c_tree_index) <CTI_CHAR16_TYPE, CTI_SIGNED_CHAR16_TYPE,
        CTI_UNSIGNED_CHAR16_TYPE, CTI_CHAR32_TYPE, CTI_SIGNED_CHAR32_TYPE,
        CTI_UNSIGNED_CHAR32_TYPE, CTI_CHAR16_ARRAY_TYPE,
        CTI_CHAR32_ARRAY_TYPE>: New elements.
        (char16_type_node, signed_char16_type_node, unsigned_char16_type_node,
        char32_type_node, signed_char32_type_node, char16_array_type_node,
        char32_array_type_node): New defines.
        * c-lex.c (cb_ident): Match updated cpp_interpret_string prototype.
        (c_lex_with_flags): Support CPP_CHAR{16,32} and CPP_STRING{16,32}.
        (lex_string): Support CPP_STRING{16,32}, match updated
        cpp_interpret_string and cpp_interpret_string_notranslate prototypes.
        (lex_charconst): Support CPP_CHAR{16,32}.
        * c-parser.c (c_parser_postfix_expression): Support CPP_CHAR{16,32}
        and CPP_STRING{16,32}.

2008-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/35457
        * aclocal.m4: Regenerate.
        * configure: Regenerate.

2008-04-18  Jan Hubicka  <jh@suse.cz>

        * except.c (dw2_size_of_call_site_table,
        sjlj_size_of_call_site_table): Use vector API for call_site_record.

        * cgraphbuild.c (build_cgraph_edges): Update.
        * tree-pass.h: Update comment.
        * final.c (leaf_function_p): Update.
        (leaf_renumber_regs): Update.
        (rest_of_clean_state): Update.
        * omp-low.c (expand_omp_parallel): Update.
        * ipa-reference.c (analyze_function): Update.
        * reorg.c (find_end_label): Update.
        (optimize_skip): Update.
        (fill_simple_delay_slots): Update.
        (fill_simple_delay_slots): Update.
        (make_return_insns): Update.
        (dbr_schedule): Update.
        * gimple-low.c (record_vars_into): Update.
        * cfgbuild.c (make_edges): Update.
        * function.c (assign_stack_local): Update.
        (assign_parm_adjust_stack_rtl): Update.
        (locate_and_pad_parm): Update.
        (allocate_struct_function): Do not initialize stack_alignment_needed
        and preferred_stack_boundary here.
        (stack_protect_prologue): Update.
        (stack_protect_epilogue): Update.
        (expand_function_start): Initialize stack_alignment_needed,
        preferred_stack_boundary and max_jumptable_ents.
        (expand_function_end): Update.
        (free_after_compilation): Do not NULLify epilogue_delay_list.
        * function.h (struct rtl_data): Add stack_protect_guard,
        stack_alignment_needed,
        preferred_stack_boundary, epilogue_delay_list.
        (struct function): Remove value_histograms, stack_alignment_needed,
        preferred_stack_boundary, epilogue_delay_list, max_jumptable_ents,
        last_label_uid,
        unexpanded_var_list, stack_protect_guard.
        (current_function_epilogue_delay_list): Remove.
        * ipa-type-escape.c (analyze_function): Update.
        * gimplify.c (pop_gimplify_context): Update comment.
        * calls.c (expand_call): Update.
        (emit_library_call_value_1): Update.
        * except.c (set_nothrow_function_flags): Update.
        * cfgexpand.c (get_decl_align_unit): Update.
        (create_stack_guard): Update.
        (estimated_stack_frame_size): Update.
        (expand_used_vars): Update.
        (tree_expand_cfg): Free histogram earliers, init expansion variables.
        * explow.c (allocate_dynamic_stack_space): Update.
        * tree-ssa-live.c (remove_unused_locals): Update.
        * varasm.c (mark_constant_pool): Update.
        * tree-inline.c (remap_decls): Update.
        (initialize_cfun): Update.
        (declare_return_variable): Update.
        (inline_forbidden_p): Update.
        (expand_call_inline): Update.
        (declare_inline_vars): Update.
        (tree_function_versioning): Update.
        * tree-flow.h (value_histograms): New.
        (VALUE_HISTOGRAMS): New macro.
        * basic-block.h (control_flow_graph): Add max_jumptable_ents,
        last_label_uid.
        * tree-cfg.c (set_bb_for_stmt): Update.
        (replace_by_duplicate_decl): Update.
        (move_block_to_fn): Update.
        (new_label_mapper): Update.
        (dump_function_to_file): Update.
        * ipa-struct-reorg.c (build_data_structure): Update.
        * cfgrtl.c (print_rtl_with_bb): Update.
        * reload1.c (reload): Update.
        (reload): Update.
        * config/i386/i386.c (setup_incoming_varargs_64,
        ix86_compute_frame_layout): Update.
        * config/arc/arc.c (arc_output_function_epilogue): Update.

2008-04-18  Marius Strobl <marius@FreeBSD.org>

        * gthr-posix.h (__gthread_active_p): Use the Solaris implementation
        for FreeBSD as well.
        * gthr-posix95.h: Likewise.

2008-04-17  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/35838
        * dse.c (find_shift_sequence): Use subreg_lowpart_offset to work
        out the byte offset of the first subreg.

2008-04-17  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (addti3 splitter): Pass arrays of 3 operands
        to split_ti instead of three separate calls with single member arrays.
        (subti3 splitter): Ditto.
        (adddi3 splitter): Ditto with split_di.
        (subdi3 splitter): Ditto.
        (negti2 splitter): Pass arrays of 2 operands to split_ti instead of
        two separate calls with single member arrays.  Swap match_dup
        operands 1 and 2 to better fit into the array.
        (negdi2 splitter): Ditto with split_di.
        (movdfcc splitter):  Pass arrays of 2 operands to split_di instead of
        two separate calls with single member arrays.  Swap match_dup operands
        6 and 7 to better fit into the array.

2008-04-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (sse_builtin_type): New.
        (bdesc_sse_args): Likewise.
        (bdesc_sse_3arg): Removed.
        (bdesc_2arg): Remove IX86_BUILTIN_AESKEYGENASSIST128.
        (bdesc_1arg): Remove IX86_BUILTIN_ROUNDPD and
        IX86_BUILTIN_ROUNDPS.
        (ix86_init_mmx_sse_builtins): Handle bdesc_sse_args.  Remove
        bdesc_sse_3arg.  Remove IX86_BUILTIN_ROUNDPD and
        IX86_BUILTIN_ROUNDPS.
        (ix86_expand_sse_4_operands_builtin): Removed.
        (ix86_expand_sse_operands_builtin): New.
        (ix86_expand_unop_builtin): Remove CODE_FOR_sse4_1_roundpd
        and CODE_FOR_sse4_1_roundps.
        (ix86_expand_builtin): Remove IX86_BUILTIN_AESKEYGENASSIST128.
        Handle bdesc_sse_args.  Remove bdesc_sse_3arg.

2008-04-17  Alan Modra  <amodra@bigpond.net.au>

        PR target/35907
        * config/rs6000/rs6000.c (rs6000_emit_epilogue): Restore vr and vrsave
        regs before frame pop when needed.  If use_backchain_to_restore_sp
        then load backchain into a temp reg to restore vr and vrsave.  Add
        code to restore vr after frame pop if possible.

2008-04-17  Richard Guenther  <rguenther@suse.de>

        * tree-vn.c (expressions_equal_p): Do not check type
        equality or compatibility before calling operand_equal_p.
        * fold-const.c (operand_equal_p): Check equivalence of
        integer constants before bailing out due to signedness or
        precision differences.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Ignore
        spurious differences in type qualification.  Ignore types
        for COMPONENT_REFs at all.

2008-04-17  Christian Bruel  <christian.bruel@st.com>

        * config/sh/sh.c (expand_cbranchdi4): Use original operands for
        msw_skip comparison.
        
2008-04-16  Jakub Jelinek  <jakub@redhat.com>

        PR c/35739
        * tree-nrv.c (tree_nrv): Don't optimize if result_type is GIMPLE
        reg type.

        PR tree-optimization/35899
        * tree-inline.c (expand_call_inline): Use GIMPLE_STMT_OPERAND
        rather than TREE_OPERAND.

2008-04-16  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35944
        * config/i386/i386.md (fmodxf3): Copy operand 1 and operand 2 into
        temporary registers.  Change operand predicate to general_operand.
        (remainderxf3): Ditto.

2008-04-16  Richard Guenther  <rguenther@suse.de>

        * Makefile.in (tree-affine.o): Add $(FLAGS_H) dependency.
        * tree-affine.c (aff_combination_expand): Look through some
        conversions.

2008-04-15  Doug Kwan  <dougkwan@google.com>

        * dwarf2asm.c (dw2_assemble_integer): Cast to unsigned HOST_WIDE_INT
        for hex printing.
        * tree-pretty-print.c (dump_generic_node): Ditto.
        * final.c (output_addr_const): Ditto.
        * dwarf2out.c (output_cfi): Ditto.
        * c-pretty-print.c (pp_c_integer_constant): Ditto.
        * print-rtl.c (print_rtx): Ditto.
        * print-tree.c (print_node_brief, print_node): Ditto.
        * c-common.c (match_case_to_enum_1): Ditto.
        * sched-vis.c (print_value): Ditto.
        * config/i386/i386.c (print_operand): Cast to long unsigned int
        for hex printing.

2008-04-15  Danny Smith  <dannysmith@users.sourceforge.net>
        * libgcc2.c [L_trampoline]: Remove  unnecessary prototype for
        MS Windows VirtualProtect function.

2008-04-15  Jan Hubicka  <jh@suse.cz>

        * gengtype.c (write_root): Param_is argument is OK.
        * expr.c (expand_expr_real_1): Update call of get_exception_*.
        * function.h: Include varray.h
        (rtl_eh): New stucture based on except.c one.
        (call_site_record): New forward declaration and vector type.
        * calls.c (emit_call_1): Do not call
        note_current_region_may_contain_throw.
        * except.c (eh_status): Remove cur_region, try_region since they are
        unused.
        Move filter, exc_ptr, ttype_data, ehspec_data, action_record_data and
        exception_handler_label_map, ehr_stackadj, ehr_handler, ehr_label,
        sjlj_fc, sjlj_exit_after to rth_eh in function.h. 
        Remove call_site_data_used, call_site_data_size.
        Turn call_site_record into vector in function.h.
        (note_current_region_may_contain_throw): Remove.
        (get_exception_pointer, get_exception_filter): Do not take struct
        function argument; update.
        (add_ehl_entry, find_exception_handler_labels, ehspec_filter_hash,
        add_ttypes_entry, add_ehspec_entry, assign_filter_values,
        build_post_landing_pads, dw2_build_landing_pads,
        sjlj_assign_call_site_values, sjlj_mark_call_sites,
        sjlj_emit_function_enter, sjlj_emit_function_enter, 
        sjlj_emit_function_exit, sjlj_emit_dispatch_table,
        sjlj_build_landing_pads, finish_eh_generation,
        remove_exception_handler_label, remove_eh_handler,
        maybe_remove_eh_handler, add_reachable_handler,
        reachable_handlers, expand_builtin_eh_return, expand_eh_return,
        add_action_record, collect_one_action_chain, add_call_site,
        convert_to_eh_region_ranges, sjlj_size_of_call_site_table,
        sjlj_output_call_site_table, output_function_exception_table,
        * except.h (note_current_region_may_contain_throw): Remove
        (get_exception_pointer, get_exception_filter): Do not take struct
        function argument.
        * Makefile.in (GTFILES): Put varargs before struct function.

2008-04-15  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-structalias.c (get_constraint_for_component_ref): Do not
        punt for STRING_CST.
        (get_constraint_for): Deal with STRING_CST here instead.

2008-04-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-propagate.c (substitute_and_fold): Substitute
        statements in a basic-block with a backward walk.  Do not
        substitute into dead statements but instead remove those.

2008-04-15  Richard Guenther  <rguenther@suse.de>

        * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Set default
        to zero, thus disable creation of SFTs.

2008-04-15  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-predcom.c (suitable_reference_p): Return false if the
        reference can throw.

2008-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/35751
        * c-decl.c (finish_decl): If extern or static var has variable
        size, set TREE_TYPE (decl) to error_mark_node.

2008-04-15  Rafael Espindola  <espindola@google.com>

        * fold-const.c (tree_call_nonnegative_warnv_p): Remove local
        variable arg1.

2008-04-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.h (vn_reference_lookup): Adjust prototype.
        * tree-ssa-sccvn.c (vn_reference_lookup): New parameter maywalk.
        (visit_reference_op_load): Do walk vuse-vdef chains on
        vn_reference_lookup.
        (visit_reference_op_store): But do not here.
        * tree-vn.c (vn_lookup): Do not walk vuse-vdef chains on
        vn_reference_lookup.
        (vn_lookup_with_vuses): But do so here.

2008-04-14  Ian Lance Taylor  <iant@google.com>

        * fold-const.c (fold_overflow_warning): Remove assertion.

2008-04-15  Ben Elliston  <bje@au.ibm.com>

        * config/alpha/alpha.c (alpha_initialize_trampoline): Remove temp,
        temp1 local variables.

2008-04-15  Zuxy Meng  <zuxy.meng@gmail.com>

        PR target/35661
        * config/i386/winnt.c (i386_pe_section_type_flags): Mark
        ".text.unlikely" section as executable.

2008-04-14  James E. Wilson  <wilson@tuliptree.org>

        * config/ia64/ia64.c (rtx_needs_barrier): Handle
        UNSPEC_FR_SQRT_RECIP_APPROX_RES.
        * config/ia64/ia64.c (UNSPEC_FR_SQRT_RECIP_APPROX_RES): Define.
        (divsi3_internal, divdi3_internal_lat, divdi3_internal_thr,
        divsf3_internal_lat, sqrt_approx, sqrtsf2_internal_thr,
        divdf3_internal_lat, sqrtdf2_internal_thr, divxf3_internal_lat,
        divxf3_internal_thr, sqrtxf2_internal_thr, recip_approx): Use it.

2008-04-14  Ian Lance Taylor  <iant@google.com>

        * flags.h (POINTER_TYPE_OVERFLOW_UNDEFINED): Define.
        * fold-const.c (fold_comparison): If appropriate, test
        POINTER_TYPE_OVERFLOW_UNDEFINED, and issue an overflow warning.
        (fold_binary): Test POINTER_TYPE_OVERFLOW_UNDEFINED when
        reassociating a pointer type.
        * doc/invoke.texi (Optimize Options): Document that
        -fstrict-overflow applies to pointer wraparound.

2008-04-13  Jan Hubicka  <jh@suse.cz>

        * m32.c (m32c_pushm_popm): Use crtl->retrun_rtx.

2008-04-12  Andrew Pinski  <pinskia@gmail.com>

        * config/rs6000/rs6000.c (compute_save_world_info): Set lr_save_p if
        we are going to "save the world".

2008-04-13  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.md ("*andhi_lowpart_non_v32", "*andhi_lowpart_v32")
        ("*andqi_lowpart_non_v32", "*andqi_lowpart_v32"): Use "+" for the
        operand 0 constraint, not "=".

2008-04-11  James E. Wilson  <wilson@tuliptree.org>

        * system.h: Change ASSERT_CHECKING to ENABLE_ASSERT_CHECKING.

2008-04-11  H.J. Lu  <hongjiu.lu@intel.com>

        * dse.c (record_store): Use HOST_BITS_PER_WIDE_INT instead
        of size of positions_needed * CHAR_BIT.

2008-04-11  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/35897
        * dse.c (store_info): Change positions_needed to unsigned
        HOST_WIDE_INT.
        (lowpart_bitmask): New.
        (record_store): Cast to unsigned HOST_WIDE_INT for
        positions_needed.  Assert width <= size of positions_needed *
        CHAR_BIT.  Call lowpart_bitmask to initialize positions_needed.
        (check_mem_read_rtx): Use unsigned HOST_WIDE_INT on mask.  Call
        lowpart_bitmask to set mask.

2008-04-11  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/constraints.md: New file.
        * config/bfin/bfin.md: Include it.
        (adddi3): Use satisfies_constraint functions instead of the old macros.
        * config/bfin/bfin.h (REG_CLASS_FROM_LETTER, CONSTRAINT_LEN,
        CONST_18UBIT_IMM_P, CONST_16BIT_IMM_P, CONST_16UBIT_IMM_P,
        CONST_7BIT_IMM_P, CONST_7NBIT_IMM_P, CONST_5UBIT_IMM_P,
        CONST_4BIT_IMM_P, CONST_4UBIT_IMM_P, CONST_3BIT_IMM_P,
        CONST_3UBIT_IMM_P, CONST_OK_FOR_K, CONST_OK_FOR_P, CONST_OK_FOR_M,
        CONST_OK_FOR_CONSTRAINT_P, CONST_DOUBLE_OK_FOR_LETTER,
        EXTRA_CONSTRAINT): Delete.
        * config/bfin/predicates.md (highbits_operand, reg_or_7bit_operand,
        reg_or_neg7bit_operand): Use satisfies_constraint functions instead
        of the old macros.
        * config/bfin/bfin.c: Include "tm-constrs.h".
        (bfin_secondary_reload, split_load_immediate, bfin_rtx_costs):
        Use satisfies_constraint functions instead of the old macros.
        * doc/md.texi (Blackfin Constraints): Update file name reference.

2008-04-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35869
        * tree-vrp.c (execute_vrp): Move switch statement update after
        jump threading.  Schedule another cfg cleanup run.

2008-04-11  Volker Reichelt  <v.reichelt@netcologne.de>

        PR c/35744
        * attribs.c (decl_attributes): Return early on errorneous node.

2008-04-10  Oleg Ryjkov  <olegr@google.com>

        * tree.h (struct tree_base): Added a new flag default_def_flag.
        (SSA_NAME_IS_DEFAULT_DEF): Changed to use the new flag.

2008-04-11  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config.gcc (need_64bit_hwint): Need 64bit hwint for sh-*-*.

2008-04-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/35768
        * pa.md: Define mode iterator P.  Define mode attribute dwc.
        (dcacheflush): Update pattern to use iterator P and attribute dwc.
        (icacheflush): Likewise.
        * pa.h (INITIALIZE_TRAMPOLINE): Use dcacheflushsi/icacheflushsi if
        !TARGET_64BIT, and dcacheflushdi/icacheflushdi if TARGET_64BIT.

2008-04-11  Ben Elliston  <bje@au.ibm.com>

        * config/spu/spu.c (spu_init_builtins): Mark builtins as nothrow.

2008-04-10  Rafael Espindola  <espindola@google.com>

        * tree-vrp.c (extract_range_from_binary_expr): Don't handle
        TRUTH_ANDIF_EXPR or TRUTH_ORIF_EXPR.
        (extract_range_from_expr): The same.

2008-04-10  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (GPR2): New mode iterator.
        (seq): Add comment.
        (*seq_<mode>, *seq_<mode>_mips16, *sne_<mode>, *sgt<u>_<mode>,
        *sgt<u>_<mode>_mips16, *sge<u>_<mode>, *slt<u>_<mode>,
        *slt<u>_<mode>_mips16 *sle<u>_<mode>, *sle<u>_<mode>_mips16):
        Rewrite these to take two modes, the mode of comparison and the
        mode of the destination.
        * config/mips/mips.c (mips_expand_scc): Instead of having
        paradoxical subreg as destination, expand "narrowing" scc if mode
        of comparison is SI and target is requested in DI mode.
        (mips_emit_int_order_test): Update comment.  Make mode of
        comparison match CMP0 rather than TARGET.  When creating inverse
        target use mode of TARGET.

2008-04-10  Adam Nemet  <anemet@caviumnetworks.com>

        * gcov-dump.c (tag_summary): Only print summaries for the first
        GCOV_COUNTERS_SUMMABLE counters.

2008-04-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (absneg): New code iterator.
        (absnegprefix): New code attribute.
        (<code><mode>2): Macroize expander from abs<mode>2 and neg<mode>2
        patterns using absneg code iterator.
        (<code>tf2): Macroize expander from abstf2 and negtf2 patterns
        using absneg code iterator.
        (*<code><mode>2_1): Macroize insn pattern from *abs<mode>2_1 and
        *neg<mode>2 patterns using absneg code iterator.
        (*<code>extendsfdf2): Macroize insn pattern from *absextendsfdf2 and
        *negextendsfdf2 patterns using absneg code iterator.
        (*<code>extendsfxf2): Macroize insn pattern from *absextendsfxf2 and
        *negextendsfxf2 patterns using absneg code iterator.
        (*<code>extendsfdf2): Macroize insn pattern from *absextendsfdf2 and
        *negextendsfdf2 patterns using absneg code iterator.
        * config/i386/sse.md (<code><mode>2): Macroize expander from
        abs<mode>2 and neg<mode>2 patterns using absneg code iterator. 

2008-04-10  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.h: Remove the remains of the recent search
        & replace action of current_function_outgoing_args_size.

2008-04-10  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/35821
        * tree-vect-transform.c (vect_create_data_ref_ptr): Add check that
        NEW_STMT_LIST is not NULL.

2008-04-09  David Edelsohn  <edelsohn@gnu.org>

        PR libstdc++/35597
        * toplev.c (process_options): Remove -ffunction-sections debugging
        warning.

2008-04-09  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/PR28690
        * explow.c (break_out_memory_refs): Use simplify_gen_binary rather
        than gen_rtx_fmt_ee to perform more canonicalizations.

2008-04-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR driver/35665
        * collect2.c (write_c_file): Don't wrap in "#ifdef __cplusplus".

2008-04-09  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (verify_stmt): Print complete bogus stmt.
        (dump_function_to_file): Dump function arguments with types.

2008-04-08  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_widened_comparison): Do not allow
        sign-changes that change the result.

2008-04-08  Janis Johnson  <janis187@us.ibm.com>

        PR target/35839
        * config/rs6000/rs6000.c (rs6000_check_sdmode): Handle additional
        kinds of indirect references.

2008-04-08  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Update
        GNU Fortran language string.

2008-04-08  Rafael Espindola  <espindola@google.com>

        * fold-canst.c (tree_call_nonnegative_warnv_p): New.
        (tree_invalid_nonnegative_warnv_p): Use tree_call_nonnegative_warnv_p.
        * tree.h (tree_call_nonnegative_warnv_p): New.

2008-04-08  Jan Hubicka  <jh@suse.cz>

        * function.c (free_after_compilation): Clear out regno_reg_rtx
        pointer.

2008-04-08  Peter Bergner  <bergner@vnet.ibm.com>

        Revert
        2008-04-07  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/PR28690
        * rtlanal.c: (commutative_operand_precedence): Give SYMBOL_REF's the
        same precedence as REG_POINTER and MEM_POINTER operands.

2008-04-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35834
        * tree-ssa-address.c (create_mem_ref): Use POINTER_PLUS_EXPR
        for adding index to base.

2008-04-08  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/mingw32.h (ENABLE_EXECUTE_STACK): New.
        (MINGW_ENABLE_EXECUTE_STACK): New.
        (IN_LIBGCC2): For libgcc include windows.h file for
        function declarations.

2008-04-08  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.c (cris_address_cost): For a PLUS, swap tem1
        and tem2 if tem1 is not a REG or MULT.

2008-04-08  Jan Hubicka  <jh@suse.cz>

        * function.h (incomming_args): Break out of struct function.
        (function_subsections): Break out of struct function.
        (rtl_data): Add args, subsections fields. Break out outgoing_args_size,
        return_rtx and hard_reg_initial_vals from struct function.
        Kill inl_max_label_num.
        (current_function_pops_args, current_function_args_info,
        current_function_args_size, current_function_args_size,
        current_function_pretend_args_size,
        current_function_outgoing_args_size,
        current_function_internal_arg_pointer, current_function_return_rtx):
        Kill compatibility accestor macros.
        * builtins.c (expand_builtin_apply_args_1): Update.
        (expand_builtin_next_arg): Update.
        * df-scan.c (df_get_call_refs): Update.
        * dbxout.c (dbxout_function_end): Update.
        * dwarf2out.c (dwarf2out_switch_text_section): Update.
        (output_line_info): Update.
        (secname_for_decl): Update.
        (dwarf2out_var_location): Update.
        * function.c (free_after_compilation): Update.
        (assign_parm_find_stack_rtl): Update.
        (assign_parms): Update.
        (expand_dummy_function_end): Update.
        (expand_function_end): Update.
        * calls.c (mem_overlaps_already_clobbered_arg_p): Update.
        (expand_call): Update.
        (emit_library_call_value_1): Update.
        (store_one_arg): Update.
        * varasm.c (initialize_cold_section_name): Update.
        (unlikely_text_section): Update.
        (unlikely_text_section_p): Update.
        (assemble_start_function): Update.
        (assemble_end_function): Update.
        (default_section_type_flags): Update.
        (switch_to_section): Update.
        * integrate.c (set_decl_abstract_flags): Update.
        (get_hard_reg_initial_val): Update.
        (has_hard_reg_initial_val): Update.
        (allocate_initial_values): Update.
        * resource.c (init_resource_info): Update.
        * config/alpha/alpha.c (NUM_ARGS): Update.
        (direct_return): Update.
        (alpha_va_start): Update.
        (alpha_sa_size): Update.
        (alpha_initial_elimination_offset): Update.
        (alpha_expand_prologue): Update.
        (alpha_start_function): Update.
        (alpha_expand_epilogue): Update.
        (unicosmk_initial_elimination_offset):
        * config/alpha/alpha.md (call expander): Update.
        * config/s390/s390.c (s390_register_info): Update.
        (s390_register_info): Update.
        (s390_frame_info): Update.
        (s390_initial_elimination_offset): Update.
        (s390_build_builtin_va_list): Update.
        (s390_va_start): Update.
        * config/spu/spu.c (direct_return): Update.
        (spu_expand_prologue): Update.
        (spu_initial_elimination_offset): Update.
        (spu_build_builtin_va_list): Update.
        (spu_va_start): Update.
        * config/sparc/sparc.c (sparc_init_modes): Update.
        (sparc_compute_frame_size): Update.
        (function_value): Update.
        * config/m32r/m32r.c (m32r_compute_frame_size): Update.
        * config/i386/i386.md (return expander): Update.
        * config/i386/i386.c (ix86_va_start): Update.
        (ix86_can_use_return_insn_p): Update.
        (ix86_compute_frame_layout): Update.
        (ix86_expand_epilogue): Update.
        * config/sh/sh.c (output_stack_adjust): Update.
        (calc_live_regs): Update.
        (sh_expand_prologue): Update.
        (sh_builtin_saveregs): Update.
        (sh_va_start): Update.
        (initial_elimination_offset): Update.
        (sh_allocate_initial_value): Update.
        (sh_function_ok_for_sibcall): Update.
        (sh_get_pr_initial_val): Update.
        * config/sh/sh.md (return expander): Update.
        * config/avr/avr.c (frame_pointer_required_p): UPdate.
        * config/crx/crx.c (crx_compute_frame): UPdate.
        (crx_initial_elimination_offset): UPdate.
        * config/xtensa/xtensa.c (compute_frame_size): Update
        (xtensa_builtin_saveregs): Update.
        (xtensa_va_start): Update.
        (order_regs_for_local_alloc): Update.
        * config/stormy16/stormy16.c (xstormy16_compute_stack_layout): Update.
        (xstormy16_expand_builtin_va_start): Update.
        * config/fr30/fr30.c (fr30_compute_frame_size): Update.
        * config/m68hc11/m68hc11.md (return expanders): Update.
        * config/m68hc11/m68hc11.c (expand_prologue): Update.
        (expand_epilogue): Update.
        * config/cris/cris.c (cris_initial_frame_pointer_offset): Update.
        (cris_simple_epilogue): Update.
        (cris_expand_prologue): Update.
        (cris_expand_epilogue): Update.
        * config/iq2000/iq2000.c (iq2000_va_start): Update.
        (compute_frame_size): Update.
        * config/mt/mt.c (mt_compute_frame_size): Update.
        * config/mn10300/mn10300.c (expand_prologue): Update.
        (expand_epilogue): Update.
        (initial_offset): Update.
        (mn10300_builtin_saveregs):
        * config/mn10300/mn10300.md (return expander): Update.
        * config/ia64/ia64.c (ia64_compute_frame_size): Update.
        (ia64_initial_elimination_offset): Update.
        (ia64_initial_elimination_offset): Update.
        (ia64_expand_prologue): Update.
        * config/m68k/m68k.md (return expander): Update.
        * config/rs6000/rs6000.c (rs6000_va_start): Update.
        (rs6000_stack_info): Update.
        * config/mcore/mcore.c (layout_mcore_frame): Update.
        (mcore_expand_prolog): Update.
        * config/arc/arc.c (arc_compute_frame_size): Update.
        * config/score/score3.c (score3_compute_frame_size): Update.
        * config/score/score7.c (score7_compute_frame_size): Update.
        * config/arm/arm.c (use_return_insn): Update.
        (thumb_find_work_register): Update.
        (arm_compute_save_reg_mask): Update.
        (arm_output_function_prologue): Update.
        (arm_output_epilogue): Update.
        (arm_size_return_regs): Update.
        (arm_get_frame_offsets): Update.
        (arm_expand_prologue): Update.
        (thumb_exit): Update.
        (thumb_unexpanded_epilogue): Update.
        (thumb1_output_function_prologue): Update.
        * config/pa/pa.md (return expander): Update.
        * config/pa/pa.c (compute_frame_size): Update.
        (hppa_builtin_saveregs): Update.
        * config/mips/mips.c (mips_va_start): Update.
        (mips16_build_function_stub): Update.
        (mips_compute_frame_info): Update.
        (mips_restore_gp): Update.
        (mips_output_function_prologue): Update.
        (mips_expand_prologue): Update.
        * config/v850/v850.c (compute_frame_size): Update.
        (expand_prologue): * config/mmix/mmix.c (along): update.
        (mmix_initial_elimination_offset): update.
        (mmix_reorg): update.
        (mmix_use_simple_return): update.
        (mmix_expand_prologue): update.
        (mmix_expand_epilogue): Update.
        * config/bfin/bfin.c (bfin_initial_elimination_offset): Update.
        (emit_link_insn): Update.

2008-04-08  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (TARGET_CPU_CPP_BUILTINS): Define 
        __AVR_HAVE_EIJMP_EICALL__ macro if device have EIJMP and EICALL 
        instructions.
        * config/avr/avr.c (avr_mcu_types): Set AVR31 architecture for 
        atmega103 device.

2008-04-07  Jan Hubicka  <jh@suse.cz>

        * function.h (rtl): Rename to x_rtl.
        (crtl): New define.
        (return_label, naked_return_label, stack_slot_list, parm_birth_insn,
        frame_offset, stack_check_probe_note, arg_pointer_save_area,
        used_temp_slots avail_temp_slots, temp_slot_level,
        nonlocal_goto_handler_labels): Update accesstors.
        (rtl): New global variable.
        (struct function): Move some fileds to rtl_data.
        (get_arg_pointer_save_area): Update prototype.
        * builtins.c (expand_builtin_setjmp_receiver): Update call of
        get_arg_pointer_save_area.
        * expr.c (init_expr): Update
        * function.c (get_frame_size): Update
        (assign_stack_local): Update
        (expand_function_end): Update.
        (get_art_pointer_save_area): Update
        * function.h 
        * emit-rtl.c (rtl): Declare.
        (regno_reg_rtx): Declare.
        (first_insn, last_insn, cur_insn_uid, last_location, first_label_num):
        Update.
        (gen_reg_rtx): Update.
        * varasm.c (n_deferred_constatns): Update accestor.
        (init_varasm_status): Do not allocate varasm_status.
        (force_const_mem, get_pool_size, output_constant_pool): Update.
        * stmt.c (force_label_rtx): Do not use x_ prefixes.
        (expand_nl_goto_receiver): Update get_arg_pointer_save_area.
        * m32c/m32.c (m32c_leaf_function_p, m32c_function_needs_enter): Update.
        * sparc/sparc.h (INIT_EXPANDERS): Update.
        * ia64/ia64.h (INIT_EXPANDERS): Update.

2008-04-07  James E. Wilson  <wilson@tuliptree.org>

        * reload.c (push_secondary_reload): Add missing break to for loop.

2008-04-07  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/PR28690
        * rtlanal.c: Update copyright years.
        (commutative_operand_precedence): Give SYMBOL_REF's the same precedence
        as REG_POINTER and MEM_POINTER operands.
        * emit-rtl.c (gen_reg_rtx_and_attrs): New function.
        (set_reg_attrs_from_value): Call mark_reg_pointer as appropriate.
        * rtl.h (gen_reg_rtx_and_attrs): Add prototype for new function.
        * gcse.c: Update copyright years.
        (pre_delete): Call gen_reg_rtx_and_attrs.
        (hoist_code): Likewise.
        (build_store_vectors): Likewise.
        (delete_store): Likewise.
        * loop-invariant.c (move_invariant_reg): Likewise.
        Update copyright years.

2008-04-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md ("*sse_prologue_save_insn"): Use braced output
        control string instead of quoted.

2008-04-07  Kenneth Zadeck <zadeck@naturalbridge.com>

        * doc/rtl.texi: Rewrite of subreg section.

2008-04-07  Kai Tietz  <kai.tietz@onevision.com>

        PR/35842
        * config/i386/i386.c (legitimize_pic_address): Add treating
        of dllimport SYM_REF's.
        (legitimize_dllimport_symbol): Add prototype.

2008-04-07  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (fold) <ARRAY_REF>: New case.  Try to fold constant
        reference in constructor with non self-referential type.

2008-04-07  Eric Botcazou  <ebotcazou@adacore.com>

        Removal of Return with Depressed Stack Pointer support
        * tree.h (TYPE_RETURNS_STACK_DEPRESSED): Delete.
        (ECF_SP_DEPRESSED): Likewise.
        (ECF_LIBCALL_BLOCK, ECF_NOVOPS): Adjust.
        * calls.c (emit_call_1): Do not test ECF_SP_DEPRESSED.
        (flags_from_decl_or_type): Do not test TYPE_RETURNS_STACK_DEPRESSED.
        (expand_call): Do not test ECF_SP_DEPRESSED.
        * dse.c (dse_step0): Do not test TYPE_RETURNS_STACK_DEPRESSED.
        * function.c (keep_stack_depressed): Delete.
        (handle_epilogue_set): Likewise.
        (update_epilogue_consts): Likewise.
        (emit_equiv_load): Likewise.
        (thread_prologue_and_epilogue_insns): Remove support for Return with
        Depressed Stack Pointer.
        * print-tree.c (print_node): Do not test TYPE_RETURNS_STACK_DEPRESSED.

2008-04-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35400
        * tree-vrp.c (vrp_evaluate_conditional): Only query value-range
        information from SSA_NAMEs.

2008-04-06  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (avr_mega_p): Remove declaration.
        (AVR_MEGA): Remove macro.
        * config/avr/avr.c (avr_mega_p): Remove variable.
        (avr_override_options): Remove inicializion of avr_mega_p.
        Use AVR_HAVE_JMP_CALL instead of AVR_MEGA.
        (print_operand): Use AVR_HAVE_JMP_CALL instead of AVR_MEGA.
        (avr_jump_mode): (Ditto.).
        (avr_output_progmem_section_asm_op): (Ditto.).
        (avr_asm_init_sections): (Ditto.).
        (avr_asm_init_sections): (Ditto.).
        (avr_rtx_costs): (Ditto.).
        * config/avr/avr.md: (Ditto.).
        * config/avr/avr.h: Use '__AVR_HAVE_JMP_CALL__' instead of 
        '__AVR_MEGA__'.

2008-04-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35842
        * tree-ssa-address.c (fixed_address_object_p): Adjust to match
        is_gimple_invariant_address.

2008-04-06  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        * gcc.c (default_compilers): Sync Fortran extensions list with
        that in fortran/lang-specs.h.
        * doc/invoke.texi: Likewise.
        * dbxout.c (get_lang_number): Use "GNU Fortran" in "GNU F95".
        * dwarf2out.c (gen_compile_unit_die): Likewise.

2008-04-06  Tom G. Christensen  <tgc@jupiterrise.com>

        * gthr-posix95.h (__gthread_cond_wait_recursive): Add missing &.

2008-04-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/12329
        * config/i386/i386.c (ix86_function_regparm): Error if regparm(3)
        attribute is used for nested functions.

2008-04-05  Jan Hubicka  <jh@suse.cz>

        * emit-rtl.c (init_emit): xcalloc regno_pointer_align.

        * tree-dump.c (dump_enable_all): Remove prototype; do not accept
        letter argument.
        (dump_files): Update.
        (enable_rtl_dump_file): Do not accept letter argument.
        * tree-pass.h (dump_file_info): Remove letter argument.
        * toplev.c (decode_d_option): Update -da handling.
        * toplev.h (enable_rtl_dump_file): Update prototype.
        * passes.c (register_one_dump_file): Do not accept IPA argument; work
        it out based on pass type.
        (register_dump_files_1): Likewise.
        (init_optimization_passes): Update register_one_dump_file calls.
        (execute_one_pass): Sanity check that IPA passes are called at IPA
        level and RTL passes at RTL level.
        (execute_pass_list): IPA pass can not be after or subpass of
        GIMPLE/RTL pass.
        (execute_ipa_pass_list): Handle IPA subpasses of IPA subpasses and
        disallov RTL subpasses of IPA subpasses.

2008-04-05  Ben Elliston  <bje@au.ibm.com>

        * tree-cfg.c (need_fake_edge_p): Return false for calls to
        builtins that return exactly once and do not throw. Cache call to
        call_expr_flags.

2008-04-04 Andy Hutchinson <hutchinsonandy@aim.com>

        PR rtl-optimization/34916
        PR middle-end/35519
        * combine.c (create_log_links): Do not create duplicate LOG_LINKS
        between instruction pairs.

2008-04-04  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * doc/invoke.texi: Document -mbitops for SH.
        * config/sh/constraints.md (K03, K12, Sbv, Sbw): New constraints.
        * config/sh/predicates.md (bitwise_memory_operand): New predicate.
        * config/sh/sh.c (print_operand): Add %t operand code.
        * config/sh/sh.h (GO_IF_LEGITIMATE_INDEX): Add condition for SH2A.
        * config/sh/sh.md (*iorsi3_compact): Fix condition for SH2A.
        (extendqisi2_compact): Add the alternative for SH2A 4-byte mov.b.
        (extendqihi2): Likewise.
        (movqi_i): Likewise.
        (insv): Use bset, bclr and bst instructions for SH2A if possible.
        (extv): Use bld instruction for SH2A if possible.
        (extzv): Likewise.
        (bclr_m2a, bclrmem_m2a, bset_m2a, bsetmem_m2a, bst_m2a, bld_m2a,
        bldsign_m2a, bld_reg, *bld_regqi, band_m2a, bandreg_m2a,
        bor_m2a, borreg_m2a, bxor_m2a, bxorreg_m2a): New insns.
        (bset.b, bclr.b): Define peepholes.
        * config/sh/sh.opt (mbitops): New option.

2008-04-04  Janis Johnson  <janis187@us.ibm.com>

        PR target/35620
        * config/rs6000/rs6000.c (rs6000_check_sdmode): Handle indirect ref
        and view convert expression.

2008-04-04  Jakub Jelinek  <jakub@redhat.com>

        PR target/35364
        * tree-cfg.c (remove_useless_stmts_1): Handle OMP_* containers.

2008-04-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc (extra_headers): Add wmmintrin.h for x86 and x86-64.

        * config/i386/cpuid.h (bit_AES): New.
        (bit_PCLMUL): Likewise.

        * config/i386/i386.c (pta_flags): Add PTA_AES and PTA_PCLMUL.
        (override_options): Handle PTA_AES and PTA_PCLMUL.  Enable
        SSE2 if AES or PCLMUL is enabled.
        (ix86_builtins): Add IX86_BUILTIN_AESENC128,
        IX86_BUILTIN_AESENCLAST128, IX86_BUILTIN_AESDEC128,
        IX86_BUILTIN_AESDECLAST128, IX86_BUILTIN_AESIMC128,
        IX86_BUILTIN_AESKEYGENASSIST128 and IX86_BUILTIN_PCLMULQDQ128.
        (bdesc_sse_3arg): Add IX86_BUILTIN_PCLMULQDQ128.
        (bdesc_2arg): Add IX86_BUILTIN_AESENC128,
        IX86_BUILTIN_AESENCLAST128, IX86_BUILTIN_AESDEC128,
        IX86_BUILTIN_AESDECLAST128 and IX86_BUILTIN_AESKEYGENASSIST128.
        (bdesc_1arg): Add IX86_BUILTIN_AESIMC128.
        (ix86_init_mmx_sse_builtins): Define __builtin_ia32_aesenc128,
        __builtin_ia32_aesenclast128, __builtin_ia32_aesdec128,
        __builtin_ia32_aesdeclast128,__builtin_ia32_aesimc128,
        __builtin_ia32_aeskeygenassist128 and
        __builtin_ia32_pclmulqdq128.
        * config/i386/i386.c (ix86_expand_binop_imm_builtin): New.
        (ix86_expand_builtin): Use it for IX86_BUILTIN_PSLLDQI128 and
        IX86_BUILTIN_PSRLDQI128.  Handle IX86_BUILTIN_AESKEYGENASSIST128.

        * config/i386/i386.h (TARGET_AES): New.
        (TARGET_PCLMUL): Likewise.
        (TARGET_CPU_CPP_BUILTINS): Handle TARGET_AES and TARGET_PCLMUL.

        * config/i386/i386.md (UNSPEC_AESENC): New.
        (UNSPEC_AESENCLAST): Likewise.
        (UNSPEC_AESDEC): Likewise.
        (UNSPEC_AESDECLAST): Likewise.
        (UNSPEC_AESIMC): Likewise.
        (UNSPEC_AESKEYGENASSIST): Likewise.
        (UNSPEC_PCLMUL): Likewise.

        * config/i386/i386.opt (maes): New.
        (mpclmul): Likewise.

        * config/i386/sse.md (aesenc): New pattern.
        (aesenclast): Likewise.
        (aesdec): Likewise.
        (aesdeclast): Likewise.
        (aesimc): Likewise.
        (aeskeygenassist): Likewise.
        (pclmulqdq): Likewise.

        * config/i386/wmmintrin.h: New.

        * doc/extend.texi: Document AES and PCLMUL built-in function.

        * doc/invoke.texi: Document -maes and -mpclmul.

2008-04-04  Paolo Bonzini  <bonzini@gnu.org>

        * function.c (free_after_parsing): Replace with
        cxx_push_function_context from C++ front-end.
        (allocate_struct_function): Don't call langhook.
        * langhooks.h (struct lang_hooks_for_functions): Delete.
        (struct lang_hooks): Add back missing_noreturn_ok_p here, delete
        member "function".
        * langhooks-def.h (LANG_HOOKS_MISSING_NORETURN_OK_P): Add.
        (LANG_HOOKS_FUNCTION_INIT, LANG_HOOKS_FUNCTION_FINAL,
        LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P,
        LANG_HOOKS_FUNCTION_INITIALIZER): Delete.
        (LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_MISSING_NORETURN_OK_P,
        remove LANG_HOOKS_FUNCTION_INITIALIZER.
        * tree-cfg.c: Adjust call to missing_noreturn_ok_p langhook.

        * c-objc-common.h (LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P):
        Rename to LANG_HOOKS_MISSING_NORETURN_OK_P.
        
2008-04-04  Jakub Jelinek  <jakub@redhat.com>

        PR c/35440
        * c-pretty-print.c (pp_c_initializer_list): Handle CONSTRUCTOR
        for all types.

2008-04-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35823
        * fold-const.c (optimize_minmax_comparison): Use the correct
        type for the constant in the simplified comparison.

2008-04-04  Zuxy Meng <zuxy.meng@gmail.com>

        * config/i386/driver-i386.c (describe_cache): Add l2_sizekb argument.
        Pass L2 size as "--param l2-cache-size" to the compiler.
        (decode_l2_cache): New function to decode L2 cache parameters using
        0x8000006 extended cpuid function.
        (detect_caches_amd): Determine parameters of L2 cache using
        decode_l2_caches function.
        (decode_caches_intel): Decode L2 cache parameters.
        (detect_caches_intel): Determine L2 cache parameters using
        decode_caches_intel and decode_l2_caches functions.

2008-04-03  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_secondary_reload_class): Use a
        secondary input reload for subword loads from the constant pool.

2008-04-03  Janis Johnson  <janis187@us.ibm.com>

        PR target/35713
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Use integer
          constants of the appropriate size for runtime calculations.

        PR c/35712
        * dfp.c (decimal_from_decnumber): Retain trailing zeroes for
          decimal-float literal constant zero.

2008-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR c/35738
        * c-parser.c (c_parser_omp_atomic): Call
        default_function_array_conversion on the RHS.

        PR middle-end/35818
        * omp-low.c (scan_sharing_clauses) <case OMP_CLAUSE_SHARED>: Don't
        call is_variable_sized if decl has incomplete type.

2008-04-03  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-protos.h (ix86_aligned_p): Removed.

2008-04-03  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (any_gt, any_ge, any_lt, any_le): New code
        iterators.
        (u): Add attribute values for gt, gtu, ge, geu, lt, ltu, le and leu.
        (sgt<u>): Merge sgt and sgtu into new expander.
        (sgt, sgtu): Remove expanders.
        (*sgt<u>_<mode>): Merge *sgt_<mode> and *sgtu_<mode> into new pattern.
        (*sgt_<mode>, *sgtu_<mode>): Remove patterns.
        (*sgt<u>_<mode>_mips16): Merge *sgt_<mode>_mips16 and
        *sgtu_<mode>_mips16 into new pattern.
        (*sgt_<mode>_mips16, *sgtu_<mode>_mips16): Remove patterns.
        (sge<u>): Merge sge and sgeu into new expander.
        (sge, sgeu): Remove expanders.
        (*sge<u>_<mode>): Merge *sge_<mode> and second *sge_<mode> into
        new pattern.
        (*sge_<mode>, second *sge_<mode>): Remove patterns.
        (slt<u>): Merge slt and sltu into new expander.
        (slt, sltu): Remove expanders.
        (*slt<u>_<mode>): Merge *slt_<mode> and *sltu_<mode> into new pattern.
        (*slt_<mode>, *sltu_<mode>): Remove patterns.
        (*slt<u>_<mode>_mips16): Merge *slt_<mode>_mips16 and
        *sltu_<mode>_mips16 into new pattern.
        (*slt_<mode>_mips16, *sltu_<mode>_mips16): Remove patterns.
        (sle<u>): Merge sle and sleu into new expander.
        (sle, sleu): Remove expanders.
        (*sle<u>_<mode>): Merge *sle_<mode> and *sleu_<mode> into new pattern.
        (*sle_<mode>, *sleu_<mode>): Remove patterns.
        (*sle<u>_<mode>_mips16): Merge *sle_<mode>_mips16 and
        *sleu_<mode>_mips16 into new pattern.
        (*sle_<mode>_mips16, *sleu_<mode>_mips16): Remove patterns.

2008-04-03  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/35795
        * alpha/alpha.c (alpha_output_mi_thunk_osf): Free after compilation.
        * sparc/sparc.c (sparc_output_mi_thunk): Likewise.
        * ia64/ia64.c (ia64_output_mi_thunk): Likewise.
        * m68k/m68k.c (m68k_output_mi_thunk): Likewise.
        * score/score3.c (score3_output_mi_thunk): Likewise.
        * score/score7.c (score7_output_mi_thunk): Likewise.
        * mips/mips.c (mips_output_mi_thunk): Likewise.

2008-04-03  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_unary_expr): Handle all
        conversions.  Simplify code.

2008-04-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_output_mi_thunk): Free cfun.

2008-04-03  Tom Tromey  <tromey@redhat.com>
            Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * config/m68k/t-uclinux (generated_files): Add sysroot-suffix.h.
        * config/bfin/t-bfin-linux (generated_files): Add
        linux-sysroot-suffix.h.
        * doc/install.texi (Prerequisites): Require make 3.80.
        * doc/sourcebuild.texi (Front End Directory): Document new
        variable.
        * Makefile.in (generated_files): New variable.
        (ALL_HOST_OBJS): New variable.
        ($(ALL_HOST_OBJS)): New target.

2008-04-03  Paolo Bonzini  <bonzini@gnu.org>

        * tree-inline.c (copy_generic_body, copy_decl_no_change): Export.
        (remap_block): Call id->transform_lang_insert_block instead
        of langhook.
        (optimize_inline_calls, unsave_expr_now, tree_function_versioning):
        Set id.transform_lang_insert_block to NULL.
        (clone_body): Move to cp/optimize.c
        * tree-inline.h (struct copy_body_data): Change
        transform_lang_insert_block to function pointer.
        (copy_generic_body, copy_decl_no_change): Export.
        * langhooks.h (struct lang_hooks_for_decls): Kill insert_block.
        * langhooks-def.h (LANG_HOOKS_INSERT_BLOCK): Kill.
        (LANG_HOOKS_DECLS): Remove LANG_HOOKS_INSERT_BLOCK.

        * c-tree.h (insert_block): Kill.
        * c-decl.c (insert_block): Kill.

2008-04-03  Paolo Bonzini  <bonzini@gnu.org>

        * c-objc-common.h (LANG_HOOKS_FUNCTION_ENTER_NESTED,
        LANG_HOOKS_FUNCTION_LEAVE_NESTED): Delete.
        * c-tree.h (c_push_function_context, c_pop_function_context): Remove
        argument.
        * c-decl.c (c_push_function_context, c_pop_function_context): Remove
        argument, call {push,pop}_function_context from here.
        * c-parser.c: Use c_{push,pop}_function_context.

        * function.c (push_function_context_to): Move meat ...
        (push_function_context): ... here.  Simplify.
        * function.c (pop_function_context_from): Move meat ...
        (pop_function_context): ... here.  Simplify.
        * langhooks.h (struct lang_hooks_for_functions): Remove enter_nested,
        leave_nested).
        * langhooks-def.h (LANG_HOOKS_FUNCTION_ENTER_NESTED,
        LANG_HOOKS_FUNCTION_LEAVE_NESTED): Delete.
        (LANG_HOOKS_FUNCTION_INITIALIZER): Delete them from here.
        * tree.h (push_function_context_to, pop_function_context_from): Remove.

2008-04-03  Ben Elliston  <bje@au.ibm.com>

        * expmed.c (extract_force_align_mem_bit_field): Remove.

2008-04-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35800
        * expr.h (try_casesi): Adjust prototype.
        * expr.c (try_casesi): Take fallback label as extra parameter.
        Use that for gen_casesi if default_label is NULL.
        * stmt.c (expand_case): Pass fallback label to try_casesi,
        make sure to fill gaps with a fallback label if default_label
        is not present.

2008-04-03  Dominique d'Humieres <dominiq@lps.ens.fr>

        PR target/35801
        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): Free cfun.

2008-04-03  Ben Elliston  <bje@au.ibm.com>

        * expmed.c (extract_split_bit_field): Remove if (0) code.
        * tree-ssa-structalias.c (do_sd_constraint): Likewise.
        (do_ds_constraint): Likewise.

2008-04-02  Joseph Myers  <joseph@codesourcery.com>

        * doc/cppopts.texi (-dU): Document.
        * c-common.h (flag_dump_macros): Update comment.
        * c-opts.c (handle_OPT_d): Handle -dU.
        * c-ppoutput.c (macro_queue, define_queue, undef_queue,
        dump_queued_macros, cb_used_define, cb_used_undef): New.
        (init_pp_output): Handle -dU.
        (cb_line_change): Call dump_queued_macros.
        * toplev.c (decode_d_option): Accept -dU as preprocessor option.

2008-04-02  Anatoly Sokolov <aesok@post.ru>

        * config/avr/predicates.md (io_address_operand): New predicate. 
        * config/avr/avr-protos.h (avr_io_address_p): Remove declaration.
        * config/avr/avr.c (avr_io_address_p): Remove function.
        (out_movqi_r_mr): Use 'io_address_operand' predicate instead of 
        'avr_io_address_p' function.
        (out_movhi_r_mr): (Ditto.).
        (out_movqi_mr_r): (Ditto.).
        (out_movhi_mr_r): (Ditto.).
        (avr_address_cost): (Ditto.).

2008-04-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*float<SSEMODEI24:mode><X87MODEF:mode>2_1):
        Emit gen_floatdi<X87MODEF:mode>2_i387_with_xmm for DImode values
        in 32bit mode when XMM registers are available to avoid store
        forwarding stalls.
        (floatdi<X87MODEF:mode>2_i387_with_xmm): New insn pattern and
        corresponding post-reload splitters.

2008-04-02  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (bdesc_sse_3arg): Add __builtin_ia32_shufps
        and __builtin_ia32_shufpd.  Provide __builtin_ia32_roundsd and
        __builtin_ia32_roundss.
        (ix86_init_mmx_sse_builtins): Remove __builtin_ia32_shufps,
        __builtin_ia32_shufpd, __builtin_ia32_roundsd and
        __builtin_ia32_roundss.
        (ix86_expand_builtin): Don't handle IX86_BUILTIN_SHUFPS and
        IX86_BUILTIN_SHUFPD here.

2008-04-02  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.md (plogic): New.
        (plogicprefix): Likewise.

        * config/i386/mmx.md (mmx_<code><mode>3): New.
        (mmx_and<mode>3): Removed.
        (mmx_ior<mode>3): Likewise.
        (mmx_xor<mode>3): Likewise.

        * config/i386/sse.md (<code><mode>3): New.
        (*<code><mode>3): Likewise.
        (*<code><mode>3): Likewise.
        (<code><mode>3): Likewise.
        (*sse_<code><mode>3): Likewise.
        (*sse2_<code><mode>3): Likewise.
        (<code>tf3): Likewise.
        (*<code>tf3): Likewise.
        (and<mode>3): Likewise.
        (*and<mode>3): Likewise.
        (ior<mode>3): Removed.
        (*ior<mode>3): Likewise.
        (xor<mode>3): Likewise.
        (*xor<mode>3): Likewise.
        (*and<mode>3): Likewise.
        (*ior<mode>3): Likewise.
        (*xor<mode>3): Likewise.
        (and<mode>3): Likewise.
        (*sse_and<mode>3): Likewise.
        (*sse2_and<mode>3): Likewise.
        (andtf3): Likewise.
        (*andtf3): Likewise.
        (ior<mode>3): Likewise.
        (*sse_ior<mode>3): Likewise.
        (*sse2_ior<mode>3): Likewise.
        (iortf3): Likewise.
        (*iortf3): Likewise.
        (xor<mode>3): Likewise.
        (*sse_xor<mode>3): Likewise.
        (*sse2_xor<mode>3): Likewise.
        (xortf3): Likewise.
        (*xortf3): Likewise.

2008-04-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/14495
        PR tree-optimization/34793
        * tree-vrp.c (struct switch_update): New structure.
        (to_remove_edges, to_update_switch_stmts): New VECs.
        (simplify_switch_using_ranges): New function.  Remove not taken
        case labels and edges.
        (simplify_stmt_using_ranges): Call it.
        (identify_jump_threads): Mark edges we have queued for removal
        so we don't thread them.
        (execute_vrp): Remove edges queued for removal, update SWITCH_STMT
        case label vector.
        * tree-cfg.c (group_case_labels): Deal with missing default label.
        (tree_verify_flow_info): Allow missing default label.
        * stmt.c (emit_case_bit_tests): Deal with NULL default_label.
        (emit_case_nodes): Likewise.
        (expand_case): Do not rely on the default label to be present.
        * expr.c (try_casesi): Deal with NULL default_label.
        (do_tablejump): Likewise.

2008-04-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/14495
        * tree-vrp.c (vrp_visit_cond_stmt): Do not handle
        SWITCH_EXPR here ...
        (vrp_visit_switch_stmt): ... but here (new function).
        (find_case_label_index): New helper function.
        (vrp_visit_stmt): Dispatch to vrp_visit_switch_stmt.

2008-04-02  Paolo Bonzini  <bonzini@gnu.org>

        * fwprop.c: Fix ISO-C99ism.

2008-04-02  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/35752
        * Makefile.in (objdir): Set it here.
        * configure.ac: Not here.  Find dynamic linker characteristics.
        * exec-tool.in: Use them.
        * aclocal.m4: Regenerate.
        * configure: Regenerate.

2008-04-02  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (expand_var): Delete it.
        * expr.h (expand_var): Delete prototype.
        * function.c (expand_function_start): Use expand_decl instead.
        * cfgexpand.c (expand_one_static_var, expand_one_var): Don't call
        langhook.

2008-04-02  Andy Hutchinson <hutchinsonamdy@aim.com>

        PR rtl-optimization/35542
        * fwprop.c (forward_propagate_and_simplify): Replace
        loc_reg_mentioned_in_p with reg_mentioned_p.

2008-04-02  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/35281
        * fwprop.c (PR_CAN_APPEAR, PR_HANDLE_MEM): New.
        (propagate_rtx_1): Handle PR_HANDLE_MEM.
        (propagate_rtx): Pass PR_HANDLE_MEM if appropriate.
        (varying_mem_p): Move above propagate_rtx.
        (all_uses_available_at): Do not check MEMs.

2008-04-02  Rafael Espindola  <espindola@google.com>

        * tree-vrp.c (extract_code_and_val_from_cond): Remove.
        (register_edge_assert_for_2): Split the cond argument.
        (register_edge_assert_for_1): Adjust for the change in
        register_edge_assert_for_2.
        (register_edge_assert_for): Split the cond argument.
        (find_switch_asserts): Adjust for the change in
        register_edge_assert_for.

2008-04-02  Kai Tietz  <kai.tietz@onevision.com>

        * config.gcc: Add for x86_64-*-mingw* the t-crtfm to tbuild.
        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add 8 byte
        offsets for 64-bit mingw.
        * config/i386/i386.c (ix86_pass_by_reference): Correct calling
        abi for x86_64-pc-mingw.

2008-04-02  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_assert): Make sure to not
        produce range min/max with TREE_OVERFOW set.
        If merging a anti-range and a range keep the anti-range if
        the range covers all values of the type.
        (register_edge_assert_for_2): Only allow sign-changing
        conversions in detecting canonical range checks.  Also
        register an assert for the unsigned name if useful.

        PR tree-optimization/35787
        * tree-vrp.c (vrp_val_max): New function.
        (vrp_val_min): Likewise.
        (vrp_val_is_max): Move earlier, use vrp_val_{min,max}.
        (vrp_val_is_min): Likewise.
        (supports_overflow_infinity): Use vrp_val_{min,max}.
        (negative_overflow_infinity): Likewise.
        (positive_overflow_infinity): Likewise.
        (is_negative_overflow_infinity): Use vrp_val_is_{min,max}.
        (is_positive_overflow_infinity): Likewise.
        (is_overflow_infinity): Likewise.
        (avoid_overflow_infinity): Use vrp_val_{min,max} and
        vrp_val_is_{min,max}.
        (set_and_canonicalize_value_range): Canonicalize anti-ranges
        to ranges if possible.  Avoid empty ranges.

2008-04-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/35705
        * fold-const.c (get_pointer_modulus_and_residue): Return modulus 1 if
        the expression is a function address.

2008-04-01  George Helffrich  <george@gcc.gnu.org>

        PR fortran/PR35154, fortran/PR23057
        * fortran/trans-common.c (create_common):  Add decl to function
        chain to preserve identifier scope in debug output.

        * dbxout.c: Emit .stabs debug info for Fortran COMMON block
        variables as base symbol name + offset using N_BCOMM/N_ECOMM.
        (is_fortran, dbxout_common_name, dbxout_common_check): New functions.
        (dbxout_symbol_location): Transform N_LCSYM to N_GSYM for storage
        in common.
        (dbxout_syms): Check for COMMON-based symbol and wrap in
        N_BCOMM/N_ECOMM stab bracket, including as many symbols as possible
        in bracket for efficiency.

        * dwarf2out.c: Emit DWARF debug info for Fortran COMMON block
        using DW_TAG_common_block + member offset.
        (add_pubname_string): New function.
        (dw_expand_expr): New function to find block name and offset for
        COMMON var.
        (common_check): New function to check whether symbol in Fortran COMMON.
        (gen_variable_die): If COMMON, use DW_TAG_common_block.

        * testsuite/gcc.dg/debug/pr35154.c:  New test to check that non-Fortran
        use of common is unchanged.

        * testsuite/lib/gfortran-dg.exp:  New harness to compile Fortran progs
        with all combinations of debug options available on target.
        * testsuite/gfortran.dg/debug/debug.exp:  Ditto.
        * testsuite/gfortran.dg/debug/trivial.f:  Ditto.
        * testsuite/gfortran.dg/debug/pr35154-stabs.f:  New test case for
        .stabs functionality.
        * testsuite/gfortran.dg/debug/pr35154-dwarf2.f:  New test case for
        DWARF functionality.

2008-04-01  Volker Reichelt  <v.reichelt@netcologne.de>

        PR c/35436
        * c-format.c (init_dynamic_gfc_info): Ignore invalid locus type.

2008-04-02  Ben Elliston  <bje@au.ibm.com>

        * config/v850/v850.md (casesi): Remove if (0) code.
        * config/i386/uwin.h (ASM_DECLARE_FUNCTION_NAME): Likewise.
        * config/alpha/alpha.c (alpha_initialize_trampoline): Likewise.

2008-04-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (rex64suffix): New mode attribute.
        (floathi<mode>2): Disable expander for SSE math.
        (*floathi<mode>2_1): New insn insn_and_split pattern.
        (*floathi<mode>2_i387_with_temp): New macroized instruction pattern and
        corresponding post-reload splitters.
        (*floathi<mode>2_i387): New macroized insn pattern.
        (float<SSEMODEI24:mode><X87MODEF:mode>2): New macroized expander.
        (*float<SSEMODEI24:mode><X87MODEF:mode>2_1): New macroized
        insn_and_split pattern.
        (*floatsi<mode>2_vector_mixed_with_temp, *floatsi<mode>2_vector_mixed):
        New macroized instruction patterns and corresponding post-reload
        splitters.
        (*floatsi<mode>2_mixed_with_temp): New macroized instruction pattern
        and corresponding post-reload splitters.
        (*floatsi<mode>2_mixed_interunit, *floatsi<mode>2_mixed_nointerunit):
        New macroized instruction patterns.
        (*floatsi<mode>2_vector_sse_with_temp, *floatsi<mode>2_vector_sse): New
        macroized instruction patterns and corresponding post-reload splitters.
        (*floatsi<mode>2_sse_with_temp): New macroized instruction pattern and
        corresponding post-reload splitters.
        (*floatsi<mode>2_sse_interunit, *floatsi<mode>2_mixed_nointerunit):
        New macroized instruction patterns.
        (*floatsi<mode>2_i387_with_temp): New macroized instruction pattern and
        corresponding post-reload splitters.
        (*floatsi<mode>2_i387): New macroized instruction patterns.

2008-04-01  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.md (smaxmin): New.
        (umaxmin): Likewise.
        (maxminiprefix): Likewise.
        (maxminfprefix): Likewise.
        (<code><mode>3): Likewise.
        (smin<mode>3): Removed.
        (smax<mode>3): Likewise.

        * config/i386/mmx.md (mmx_<code>v2sf3): New.
        (mmx_<code>v4hi3): Likewise.
        (mmx_<code>v8qi3): Likewise.
        (mmx_smaxv2sf3): Removed.
        (mmx_sminv2sf3): Likewise.
        (mmx_umaxv8qi3): Likewise.
        (mmx_smaxv4hi3): Likewise.
        (mmx_uminv8qi3): Likewise.
        (mmx_sminv4hi3): Likewise.

        * config/i386/sse.md (<addsub><mode>3): New.
        (*<addsub><mode>3): Likewise.
        (<sse>_vm<addsub><mode>3): Likewise.
        (<maxmin><mode>3): Likewise.
        (*<maxmin><mode>3_finite): Likewise.
        (*<maxmin><mode>3): Likewise.
        (<sse>_vm<maxmin><mode>3): Likewise.
        (sse3_h<addsub>v4sf3): Likewise.
        (sse3_h<addsub>v2df3): Likewise.
        (<maxmin>v16qi3): Likewise.
        (*<maxmin>v16qi3): Likewise.
        (<maxmin>v8hi3): Likewise.
        (*<maxmin>v8hi3): Likewise.
        (*sse4_1_<maxmin><mode>3): Likewise.
        (*sse4_1_<maxmin><mode>3): Likewise.
        (add<mode>3): Removed.
        (*add<mode>3): Likewise.
        (<sse>_vmadd<mode>3): Likewise.
        (sub<mode>3): Likewise.
        (*sub<mode>3): Likewise.
        (<sse>_vmsub<mode>3): Likewise.
        (smin<mode>3): Likewise.
        (*smin<mode>3_finite): Likewise.
        (*smin<mode>3): Likewise.
        (<sse>_vmsmin<mode>3): Likewise.
        (smax<mode>3): Likewise.
        (*smax<mode>3_finite): Likewise.
        (*smax<mode>3): Likewise.
        (<sse>_vmsmax<mode>3): Likewise.
        (sse3_haddv4sf3): Likewise.
        (sse3_haddv2df3): Likewise.
        (sse3_hsubv4sf3): Likewise.
        (sse3_hsubv2df3): Likewise.
        (umaxv16qi3): Likewise.
        (*umaxv16qi3): Likewise.
        (smaxv8hi3): Likewise.
        (*smaxv8hi3): Likewise.
        (*sse4_1_smax<mode>3): Likewise.
        (*sse4_1_umax<mode>3): Likewise.
        (uminv16qi3): Likewise.
        (*uminv16qi3): Likewise.
        (sminv8hi3): Likewise.
        (*sminv8hi3): Likewise.
        (*sse4_1_smin<mode>3): Likewise.
        (*sse4_1_umin<mode>3): Likewise.

2008-04-01  Rafael Espindola  <espindola@google.com>

        * tree-cfg.c (verify_expr): remove in_phi.
        (verify_stmt): Don't call walk_tree with verify_expr. Use
        is_gimple_min_invariant instead of is_gimple_val.

2008-04-01  Joseph Myers  <joseph@codesourcery.com>

        * doc/include/gpl_v3.texi: Update for manpage generation.
        * doc/gcc.texi, doc/gccint.texi: Include gpl_v3.texi instead of
        gpl.texi.
        * doc/sourcebuild.texi: Document gpl_v3.texi as well as gpl.texi.
        * Makefile.in (TEXI_GCC_FILES, TEXI_GCCINT_FILES): Include
        gpl_v3.texi instead of gpl.texi.
        (gpl.pod): New.

2008-04-01  Jakub Jelinek  <jakub@redhat.com>

        PR pch/13675
        * c-pch.c (c_common_read_pch): On error close (fd) resp. fclose (f).

2008-04-01  Rafael Espindola  <espindola@google.com>

        * tree-vrp.c (extract_code_and_val_from_cond_with_ops): New.
        (extract_code_and_val_from_cond): Use
        extract_code_and_val_from_cond_with_ops.

2008-04-01  Jan Hubicka  <jh@suse.cz>

        * function.c (free_after_compilation): Free epilogue_delay_list.
        (prepare_function_start): Assert that previous compilation was freed.

2008-04-01  Jan Hubicka  <jh@suse.cz>
            Jim Wilson  <wilson@tuliptree.org>
            Andreas Tobler <andreast@gcc.gnu.org>

        PR middle-end/35781
        * m32c/m32.c (m32c_leaf_function_p, m32c_function_needs_enter): Use
        rtl.emit instead cfun->emit.
        * sparc/sparc.h (INIT_EXPANDERS): Likewise.
        * ia64/ia64.h (INIT_EXPANDERS): Likewise.

2008-04-01  Ben Elliston  <bje@au.ibm.com>

        * doc/c-tree.texi (Function Basics): Fix grammatical error.

2008-03-31  Seongbae Park <seongbae.park@gmail.com>

        * common.opt (fprofile-dir=, fprofile-use=, fprofile-generate=):
        New options
        (fprofile-use): Add var flag_profile_use
        * coverage.c (coverage_begin_output): Do not open a gcno file for
        output only if -ftest-coverage is set.
        Do not add getpwd() to gcda file path.
        (build_gcov_info): Check the new flag
        flag_profile_datafile_relative_path.
        (coverage_init): Use profile_data_prefix.
        Read profile counter only if flag_profile_use is set.
        * opts.c (common_handle_option): New option fprofile-use=,
        fprofile-dir=, fprofile-generate=.
        * toplev.c (profile_data_prefix): New variable definition.
        * toplev.h (profile_data_prefix): New declaration.
        * doc/invoke.tex (Option Summary, Optimization Options):
        Add new options.

2008-03-31  James E. Wilson  <wilson@tuliptree.org>

        * varasm.c (output_constant_pool_1): In LABEL_REF check,
        use tmp consistently.

        PR target/35695
        * config/ia64/div.md (recip_approx_rf): Use UNSPEC not DIV.
        * config/ia64/ia64.c (rtx_needs_barrier): Handle
        UNSPEC_FR_RECIP_APPROX_RES.
        * config/ia64/ia64.md (UNSPEC_FR_RECIP_APPROX_RES): Define.

2008-03-31  Volker Reichelt  <v.reichelt@netcologne.de>

        PR c/35750
        * c-decl.c (store_parm_decls_oldstyle): Skip invalid parameters.

2008-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30186
        * fold-const.c (fold_indirect_ref_1): Support accessing non first
        element of the vector via a pointer.

2008-03-31  Ian Lance Taylor  <iant@google.com>

        * tlink.c (scan_linker_output): Look for symbol name in single quotes.

2008-03-31  Jan Hubicka  <jh@suse.cz>

        * builtins.c (expand_builtin_setjmp_receiver): Update call of
        get_arg_pointer_save_area.
        * expr.c (init_expr): Just clear out rtl.expr.
        * function.c (free_after_compilation): Clear out whole RTL structure.
        (get_func_frame_size): Merge into ...
        (get_frame_size): ... this one.
        (assign_stack_local_1): Merge into ...
        (assign_stack_local): ... this one.
        (expand_function_end): Update call of get_arg_pointer_save_area.
        (get_art_pointer_save_area): Remove cfun argument.
        * function.h (emit_status): regno_pointer_align does not need length
        attribute. Move x_regno_reg_rtx to ...
        (regno_reg_rtx): ... new global array.
        (reg_rtx_no, seq_stack, REGNO_POINTER_ALIGN): Update accestors.
        (pending_stack_adjust, inhibit_defer_pop, saveregs_value,
        apply_args_value, forced_labels, stack_pointer_delta):
        Update accestors.
        (struct varasm_status): Move here from varasm.c
        (struct rtl_data): New. Move here some fields from struct function.
        (return_label, naked_return_label, stack_slot_list, parm_birth_insn,
        frame_offset, stack_check_probe_note, arg_pointer_save_area,
        used_temp_slots avail_temp_slots, temp_slot_level,
        nonlocal_goto_handler_labels): Update accesstors.
        (rtl): New global variable.
        (struct function): Move some fileds to rtl_data.
        (get_arg_pointer_save_area): Update prototype.
        * emit-rtl.c (rtl): Declare.
        (regno_reg_rtx): Declare.
        (first_insn, last_insn, cur_insn_uid, last_location, first_label_num):
        Update.
        (gen_reg_rtx): Update.
        (init_virtual_regs): Do not tate emit_status argument.
        (init_emit): Do not allocate emit.
        * varasm.c (varasm_statuc): Move to function.h.
        (n_deferred_constatns): Update accestor.
        (init_varasm_status): Do not allocate varasm_status.
        (force_const_mem, get_pool_size, output_constant_pool): Update.
        * stmt.c (force_label_rtx): Do not use x_ prefixes.
        (expand_nl_goto_receiver): Update get_arg_pointer_save_area.

2008-03-31  Zdenek Dvorak  <ook@ucw.cz>

        PR rtl-optimization/35729
        * loop-invariant.c (check_maybe_invariant): Disallow volatile memory
        references.

2008-03-31  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/32000
        * config/i386/i386.md (*movti_internal): Emit unaligned SSE
        load/store if memory is unaligned.
        (*movti_rex64): Likewise.

        * config/i386/predicates.md (misaligned_operand): New.

2008-03-31  Andrew Pinski  <pinskia@gmail.com>

        PR tree-opt/35431
        * tree-ssa-phiopt.c (conditional_replacement): Return early for
        complex types.

2008-03-31  Jan Beulich  <jbeulich@novell.com>

        * config/ia64/constraints.md: Add 'j' constraint.
        * config/ia64/ia64.md (movsi_internal): Add addp4 case.
        (movdi_internal): Likewise.

2008-03-30  Volker Reichelt  <v.reichelt@netcologne.de>

        PR c/35748
        * c-typeck.c (build_c_cast): Skip invalid fields in unions.

2008-03-30  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/35757
        * config/i386/i386.c (ix86_expand_sse_4_operands_builtin): Issue
        proper error message for the third argument on blendpd and
        blendps.

        * config/i386/sse.md (blendbits): New.
        (sse4_1_blendp<ssemodesuffixf2c>): Use it.

2008-03-30  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Add missing conversions.

2008-03-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/31023
        * fold-const.c (fold_sign_changed_comparison): Do leave
        conversions to base-types alone.

2008-03-29  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): Don't force saving of
        the link register if one altivec register is be saved.

2008-03-30  Ben Elliston  <bje@au.ibm.com>

        * final.c (final_scan_insn): Remove if (0) code.

2008-03-28  Volker Reichelt  <v.reichelt@netcologne.de>

        * c-parser.c (c_parser_next_token_is_keyword): Simplify.

2008-03-28  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (*and<mode>3): Pass <MODE>mode instead
        of V4SFmode to ix86_binary_operator_ok.

2008-03-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Initialize
        ix86_veclib_handler to ix86_veclibabi_svml when
        -mveclibabi=svml is used.
        (ix86_veclibabi_svml): New function for SVML ABI style
        vectorization support.
        * doc/invoke.texi (-mveclibabi) [svml]: Document new target option.

2008-03-28  Rafael Espindola  <espindola@google.com>

        * fold-const.c (tree_unary_nonnegative_warnv_p): Make it public.
        (tree_binary_nonnegative_warnv_p): Make it public.
        (tree_single_nonnegative_warnv_p): Make it public.
        (tree_invalid_nonnegative_warnv_p): Make it public.
        (tree_unary_nonzero_warnv_p): Make it public.
        (tree_binary_nonzero_warnv_p): Make it public
        (tree_single_nonzero_warnv_p): Make it public.
        * tree-vrp.c (vrp_evaluate_conditional_warnv_with_ops): New function.
        (extract_range_from_binary_expr): Split the expr argument.
        (extract_range_from_unary_expr): Split the expr argument.
        (extract_range_from_comparison): Split the expr argument.
        (extract_range_from_expr): Use the new aux functions.
        (vrp_evaluate_conditional_warnv): Use
        vrp_evaluate_conditional_warnv_with_ops.
        * tree.h (tree_unary_nonzero_warnv_p): Declare.
        (tree_binary_nonzero_warnv_p): Declare.
        (tree_single_nonzero_warnv_p): Declare.
        (tree_expr_nonzero_warnv_p): Declare.
        (tree_unary_nonnegative_warnv_p): Declare.
        (tree_binary_nonnegative_warnv_p): Declare.
        (tree_single_nonnegative_warnv_p): Declare.
        (tree_invalid_nonnegative_warnv_p): Declare.

2008-03-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30317
        PR tree-optimization/30911
        PR tree-optimization/34793
        * tree-vrp.c (set_and_canonicalize_value_range): New function.
        (struct assert_locus_d): New member EXPR.
        (register_new_assert_for): Add EXPR parameter to support
        ASSERT_EXPR <name, expr OP limit>.
        (register_edge_assert_for_1): Adjust callers.
        (find_assert_locations): Likewise.
        (process_assert_insertions_for): Build condition from expression.
        (extract_range_from_assert): Handle ASSERT_EXPRs
        of the form ASSERT_EXPR <name, expr OP limit>.
        (register_edge_assert_for_2): New helper registering
        asserts for comparisons.  Recognize range tests of the form
        (unsigned)i - CST1 OP CST2.
        (register_edge_assert_for_1): Use it.
        (register_edge_assert_for): Likewise.
        (needs_overflow_infinity): Integer sub-types
        do not need overflow infinities.
        (vrp_val_is_max): The extreme values of integer sub-types
        are those of the base type.
        (vrp_val_is_min): Likewise.
        * tree.def (ASSERT_EXPR): Document extra allowed conditional
        expressions.

2008-03-28  Nick Clifton  <nickc@redhat.com>

        PR target/31110
        * config/mn10300/mn10300.c (mn10300_secondary_reload_class):
        Return GENERAL_REGS for stack adjustment reloads.

2008-03-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31334
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Create a
        const_vector when all the vectors are constant.

2008-03-27  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (gen_float_relational): Handle unordered
        comparisons.
        * config/xtensa/xtensa.md (any_cond): Add unordered comparisons.
        (any_scc_sf): Add uneq, unlt, unle and unordered operators.
        (scc_sf): New.
        (s<code>_sf): Use new scc_sf attribute for opcode names.

2008-03-27  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi, doc/install.texi, configure, aclocal.m4,
        configure.ac, Makefile.in, config/t-darwin, config/m32c/t-m32c,
        config/spu/t-spu-elf, config/i386/t-interix,
        config/i386/t-cygming, config/i386/x-i386, config/i386/t-cygwin,
        config/i386/x-darwin, config/i386/x-mingw32,
        config/i386/t-netware, config/i386/x-cygwin, config/i386/t-nwld,
        config/sh/t-sh, config/sh/t-symbian, config/x-linux,
        config/t-sol2, config/x-hpux, config/x-darwin, config/ia64/t-ia64,
        config/x-solaris, config/t-vxworks, config/m68k/t-uclinux,
        config/rs6000/x-rs6000, config/rs6000/x-darwin64,
        config/rs6000/x-darwin, config/rs6000/t-rs6000,
        config/score/t-score-elf, config/arm/t-strongarm-pe,
        config/arm/t-pe, config/arm/t-arm, config/arm/t-wince-pe,
        config/v850/t-v850, config/v850/t-v850e, config/bfin/t-bfin-linux:
        Revert automatic dependency patch.

2008-03-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/35657
        * config/i386/i386.c (ix86_function_arg_boundary): Align
        decimal floating point to its natural boundary.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35716
        * fold-const.c (fold_comparison): Restrict distinct decl
        comparison folding to VAR_DECLs and PARM_DECLs.  Do not
        solely rely on operand_equal_p.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        PR c/32511
        * c-common.c (handle_weak_attribute): Reject combination of
        weak and inline.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/32810
        * tree-ssa-ccp.c (get_symbol_constant_value): Strip useless
        conversions from DECL_INITIAL.
        (fold_const_aggregate_ref): Likewise from constructor elements.

2008-03-27  Zdenek Dvorak  <ook@ucw.cz>

        * tree-affine.h (aff_combination_expand): Declare.
        (get_inner_reference_aff): Likewise.
        * tree-affine.c (aff_combination_expand): Split out from
        tree_to_aff_combination_expand.
        (get_inner_reference_aff): New function.
        * tree-parloops.c (loop_parallel_p): Free vectorizer info.
        * tree-ssa-loop-im.c: Include tree-affine.h and pointer-set.h.
        (struct lim_aux_data): sm_done field removed.
        (mem_ref_loc_p, mem_ref_locs_p): New types.
        (struct mem_ref): Added id, stored, accesses_in_loop,
        indep_loop, dep_loop, indep_ref, dep_ref fields.
        Removed is_stored, locs and next fields.
        (memory_accesses): New variable.
        (movement_possibility): Do not allow moving statements
        that store to memory.
        (outermost_indep_loop, simple_mem_ref_in_stmt, mem_ref_in_stmt):
        New functions.
        (determine_max_movement): For statements with memory references,
        find the outermost loop in that the reference is independent.
        (move_computations_stmt): Mark the virtual operands for renaming.
        (memref_free, mem_ref_alloc, mem_ref_locs_alloc, mark_ref_stored,
        gather_mem_refs_stmt, gather_mem_refs_in_loops, vtoe_hash, vtoe_eq,
        vtoe_free, record_vop_access, get_vop_accesses, get_vop_stores,
        add_vop_ref_mapping, create_vop_ref_mapping_loop,
        create_vop_ref_mapping, analyze_memory_references,
        cannot_overlap_p, mem_refs_may_alias_p, rewrite_mem_ref_loc,
        get_all_locs_in_loop, ref_always_accessed_p,
        refs_independent_p, record_indep_loop, ref_indep_loop_p_1,
        ref_indep_loop_p, can_sm_ref_p, find_refs_for_sm,
        store_motion_loop, store_motion): New functions.
        (struct vop_to_refs_elt): New type.
        (record_mem_ref_loc, free_mem_ref_locs, rewrite_mem_refs,
        memref_hash, memref_eq, hoist_memory_references): Rewritten.
        (schedule_sm): Replaced by...
        (execute_sm): ... this.
        (determine_lsm_ref, hoist_memory_references,
        loop_suitable_for_sm, gather_mem_refs_stmt, gather_mem_refs,
        find_more_ref_vops, free_mem_ref, free_mem_refs,
        determine_lsm_loop, determine_lsm): Removed.
        (tree_ssa_lim_finalize): Free data structures used by store motion.
        (tree_ssa_lim): Call analyze_memory_references.  Use
        store_motion instead of determine_lsm.

2008-03-27  Paolo Bonzini  <bonzini@gnu.org>

        * config.cc (m68hc11, m6811, m68hc12, m6812): Add usegas.h,
        rename tmake_file to m68hc11/t-m68hc11.
        (mcore): Set inhibit_libc to true.
        * config.host (alpha*-dec-*vms*): Set extra_programs.
        (interix3*): Don't use host_xmake_file.
        * configure.ac: Let config.gcc override inhibit_libc.
        * configure: Regenerate.

        * config/alpha/x-vms (EXTRA_PROGRAMS): Remove.
        * config/t-openbsd-thread: Remove commented out lines.
        
        * config/x-interix: Remove.

        * config/m68hc11/t-m68hc11-gas: Rename to...
        * config/m68hc11/t-m68hc11: ... this.  Remove T_CPPFLAGS.

        * config/mcore/t-mcore: Remove T_CFLAGS.
        * config/mcore/t-mcore-pe: Likewise.

2008-03-27  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Replace custom __GNU_SOURCE test with
        AC_USE_SYSTEM_EXTENSIONS.  Move it earlier.
        * aclocal.m4: Regenerate.
        * configure: Regenerate.
        * config.in: Regenerate.

2008-03-27  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (target.h): Include.
        (fold_comparison): Fold comparison of addresses of decls
        that bind locally or of constants.  Consolidate address folding code.
        * tree-vrp.c (operand_less_p): Deal with non-INTEGER_CST
        results from fold_binary_to_constant.
        (compare_values_warnv): Likewise.

2008-03-27  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/35429
        * fold-const.c (fold_truthop): Check for integeral types when folding
        a == 0 && b == 0 and a != 0 || b != 0 .

2008-03-26  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (get_unwidened): Remove code fiddling with COMPONENT_REF.

2008-03-26  Andreas Schwab  <schwab@suse.de>

        * doc/invoke.texi: Fix use of @item vs. @itemx.

2008-03-26  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (build/gensupport.o, build/print-rtl.o,
        build/read-rtl.o, build/rtl.o, build/gencondmd.o, build/genattr.o,
        build/genattrtab.o, build/genautomata.o, build/gencheck.o,
        build/gencodes.o, build/genconditions.o, build/genconfig.o,
        build/genconstants.o, build/genemit.o, build/genextract.o,
        build/genflags.o, build/genmddeps.o, build/genopinit.o,
        build/genoutput.o, build/genpeep.o, build/genrecog.o): Depend on
        options.h.

2008-03-26  Richard Guenther  <rguenther@suse.de>

        Revert
        2008-03-26  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (target.h): Include.
        (fold_comparison): Fold comparison of addresses of two decls
        that bind locally.  Consolidate address folding code.

2008-03-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_pow, fold_builtin_cabs,
        fold_builtin_sqrt, fold_builtin_cbrt, fold_builtin_logarithm,
        fold_builtin_hypot, fold_builtin_pow): Remove uses of dconst3,
        dconstsqrt2, dconstthird, dconste and/or dconst10.
        * config/i386/i386.c (ix86_emit_swsqrtsf): Likewise.
        * emit-rtl.c (dconst3, dconst10, dconstm2, dconstthird,
        dconstsqrt2, dconste): Delete.
        (init_emit_once): Likewise.  Simplify initializing dconstm1.
        Constify variable.
        * real.c (get_real_const): New.
        * real.h (dconst3, dconst10, dconstm2, dconstthird,
        dconstsqrt2, dconste): Delete.
        (real_value_const, get_real_const): New.

2008-03-26  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/cygming.h (BIGGEST_ALIGNMENT): Removed.

        * config/i386/i386.c (ix86_function_arg_boundary): Check
        BIGGEST_ALIGNMENT instead of 128.
        (setup_incoming_varargs_64): Likewise.

2008-03-26  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (DEPFILES): Add missing '/'.

2008-03-26  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (target.h): Include.
        (fold_comparison): Fold comparison of addresses of two decls
        that bind locally.  Consolidate address folding code.

2008-03-26  Nick Clifton  <nickc@redhat.com>

        PR target/31232
        * config/stormy16/stormy16.c (xstormy16_legitimate_address_p): Do
        not allow INT+INT as a legitimate addressing mode.

2008-03-26  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (widen_bitfield): Remove declaration.
        * tree-ssa-ccp.c (visit_assignment): Remove unneeded code.
        (widen_bitfield): Remove function.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Remove unneeded
        code.

2008-03-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31558
        * config/rs6000/rs6000-c.c (rs6000_builtin_type_compatible): Handle
        error_mark_node's.

2008-03-25  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/35232
        * reload1.c (reg_reloaded_call_part_clobbered): Clarify comment.
        (forget_old_reloads_1, forget_marked_reloads): Don't clear
        reg_reloaded_call_part_clobbered here.
        (reload_regs_reach_end_p): New function.
        (reload_reg_rtx_for_input): New variable.
        (reload_reg_rtx_for_output): Likewise.
        (emit_input_reload_insns): Use reloadreg rather than rl->reg_rtx
        when reassigning a pseudo register.  Load reloadreg from 
        reload_reg_rtx_for_input, moving the mode and register
        calculation to...
        (do_input_reload): ...here.  Use the mode-adjusted reg_rtx
        instead of the original when deciding whether an input reload
        would be a no-op or whether an output reload can be deleted.
        (emit_output_reload_insns): Use the mode-adjusted reg_rtx
        when setting up new_spill_reg_store.  Load it from
        reload_reg_rtx_for_output, moving the mode and register
        calculation to...
        (do_output_reload): ...here.  Use the mode-adjusted reg_rtx
        instead of the original when deciding whether an output reload
        would be a no-op.  Do the same when modifying insn notes.
        Use rtx_equal_p instead of == to compare the registers.
        (inherit_piecemeal_p): Take a mode and two register numbers
        as argument.
        (emit_reload_insns): Clear new_spill_reg_store for every hard
        register in the reload register.  Remove spill registers
        from reg_reloaded_valid before considering whether to record
        inheritance information for them.  Use reload_reg_rtx_for_output
        instead of reg_rtx when recording output reloads.  Use
        reload_reg_rtx_for_input instead of reg_rtx when recording
        input reloads.  Set or clear reg_reloaded_call_part_clobbered
        at the same time as setting reg_reloaded_valid.
        (delete_output_reload): Add a new_reload_reg parameter and use it
        instead of rld[j].reg_rtx.
        (emit_input_reload_insns, do_input_reload, do_output_reload): Adjust
        calls accordingly.

2008-03-25  Tom Tromey  <tromey@redhat.com>

        * Makefile.in (build/gensupport.o): Depend on insn-modes.h.
        (build/genattr.o): Likewise.
        (build/genattrtab.o): Likewise.
        (build/gencodes.o): Likewise.
        (build/genconfig.o): Likewise.
        (build/genconstants.o): Likewise.
        (build/genemit.o): Likewise.
        (build/genextract.o): Likewise.
        (build/genflags.o): Likewise.

2008-03-25  Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/xtensa.c (xtensa_va_start): Use build_int_cst
        instead of size_int for integer types.
        (xtensa_gimplify_va_arg_expr): Likewise.  Convert index to sizetype
        to match type of MINUS_EXPR.
        
2008-03-25  Tom Tromey  <tromey@redhat.com>

        * configure: Rebuilt.
        * configure.ac (BUILD_DEPMODE): Extract CCDEPMODE from temporary
        Makefile.

2008-03-25  Tom Tromey  <tromey@redhat.com>

        * config/x-solaris (host-solaris.o): Update.
        * config/x-linux (host-linux.o): Update.
        * config/x-hpux (host-hpux.o): Update.
        * config/x-darwin (host-darwin.o): Update.
        * config/v850/t-v850e (v850-c.o): Update.
        * config/v850/t-v850 (v850-c.o): Update.
        * config/t-vxworks (vxworks.o): Update.
        * config/t-sol2 (sol2-c.o, sol2.o): Update.
        * config/t-darwin (darwin.o, darwin-c.o, darwin-driver.o): Update.
        * config/spu/t-spu-elf (spu-c.o): Update.
        (spu.o): Remove.
        * config/sh/t-symbian (sh-c.o): Update.
        (symbian.o): Update.
        * config/sh/t-sh (sh-c.o): Update.
        * config/score/t-score-elf (score7.o, score3.o): Update.
        * config/rs6000/x-rs6000 (driver-rs6000.o): Update.
        * config/rs6000/x-darwin64 (host-ppc64-darwin.o): Update.
        * config/rs6000/x-darwin (host-ppc-darwin.o): Update.
        * config/rs6000/t-rs6000 (rs6000-c.o): Update.
        (rs6000.o): Remove.
        * config/m68k/t-uclinux (generated_files): Add sysroot-suffix.h.
        * config/m32c/t-m32c (m32c-pragma.o): Update.
        * config/ia64/t-ia64 (ia64-c.o): Update.
        * config/i386/x-mingw32 (host-mingw32.o): Update.
        * config/i386/x-i386 (driver-i386.o): Update.
        * config/i386/x-darwin (host-i386-darwin.o): Update.
        * config/i386/x-cygwin (host-cygwin.o): Update.
        * config/i386/t-nwld (nwld.o): Update.
        * config/i386/t-netware (netware.o): Update.
        * config/i386/t-interix (winnt.o): Update.
        * config/i386/t-cygwin (cygwin1.o, cygwin2.o): Update.
        * config/i386/t-cygming (winnt.o, winnt-cxx.o, winnt-stubs.o,
        msformat-c.o): Update.
        * config/bfin/t-bfin-linux (generated_files): Add
        linux-sysroot-suffix.h.
        * config/arm/t-wince-pe (pe.o): Update.
        * config/arm/t-strongarm-pe (pe.o): Update.
        * config/arm/t-pe (pe.o): Update.
        * config/arm/t-arm (arm-c.o): Update.
        * doc/install.texi (Prerequisites): Require make 3.80.
        * Makefile.in: Remove .o targets.
        (CCDEPMODE, DEPDIR, depcomp, BUILD_DEPMODE): New variables.
        (OBSTACK_H, FIBHEAP_H, PARTITION_H, MD5_H, BCONFIG_H): Remove.
        (simple_generated_h, simple_generated_c): Move earlier.
        (generated_files): New variable.
        (TARGET_H, MACHMODE_H, HOOKS_H, HOSTHOOKS_DEF_H, LANGHOOKS_DEF_H,
        TARGET_DEF_H, RTL_BASE_H, RTL_H, PARAMS_H, BUILTINS_DEF, TREE_H,
        BASIC_BLOCK_H, GCOV_IO_H, COVERAGE_H, DEMANGLE_H, RECOG_H,
        ALIAS_H, EMIT_RTL_H, FLAGS_H, FUNCTION_H, EXPR_H, OPTABS_H,
        REGS_H, RA_H, RESOURCE_H, SCHED_INT_H, INTEGRATE_H, CFGLAYOUT_H,
        CFGLOOP_H, IPA_UTILS_H, IPA_REFERENCE_H, IPA_TYPE_ESCAPE_H,
        CGRAPH_H, DF_H, RESOURCE_H, DDG_H, GCC_H, GGC_H, TIMEVAR_H,
        INSN_ATTR_H, C_COMMON_H, C_PRAGMA_H, C_TREE_H, SYSTEM_H,
        PREDICT_H, DECNUM_H, MKDEPS_H, SYMTAB_H, TREE_DUMP_H,
        TREE_GIMPLE_H, TREE_FLOW_H, TREE_SSA_LIVE_H, PRETTY_PRINT_H,
        DIAGNOSTIC_H, C_PRETTY_PRINT_H, SCEV_H, LAMBDA_H, TREE_DATA_REF_H,
        VARRAY_H, TREE_INLINE_H, REAL_H, DBGCNT_H, EBIMAP_H): Remove.
        (.c.o): Remove.
        (COMPILE.base, COMPILE): New variables.
        (%.o): New pattern rule.
        (ALL_HOST_OBJS): New variable.
        (xgcc$(exeext), cpp$(exeext)): Remove extra version.o.
        (dummy-checksum.o, cc1-checksum.o): Remove.
        (DRIVER_SHLIB): New variable.
        (DRIVER_DEFINES): Use it.
        (gencondmd.c): Move out of build/.
        (s-conditions): Update.
        (BUILDCOMPILE.base, BUILDCOMPILE): New variables.
        (ALL_BUILD_OBJS): Likewise.
        (build/%.o): Use BUILDCOMPILE.
        (build/ggc-none.o, build/ggc-none.o, build/min-insn-modes.o,
        build/print-rtl.o, build/read-rtl.o, build/rtl.o, build/vec.o,
        build/gencondmd.o, build/genattrtab.o, build/genautomata.o,
        build/gencheck.o, build/gencodes.o, build/genconditions.o,
        build/genconfig.o, build/genconstants.o, build/genemit.o,
        build/genextract.o, build/genflags.o, build/genmddeps.o,
        build/genopinit.o, build/genoutput.o, build/genpeep.o,
        build/genpreds.o, build/genrecog.o, build/gcov-iov.o,
        build/gen-protos.o, build/scan.o, build/fix-header.o,
        build/scan-decls.o): Simplify.
        (collect2.o, c-opts.o, gcc.o, gccspec.o, gcc-options.o,
        cppdefault.o, protoize.o, unprotoize.o, intl.o, version.o,
        prefix.o, toplev.o): Reduce to variable setting.
        (libbackend.o): Use COMPILE.  Remove most dependencies.  Move later.
        ($(out_object_file), gcc-options.o): New targets.
        ($(ALL_HOST_OBJS)): New target.  Include dependency files.
        * configure: Rebuilt.
        * configure.ac: Call ZW_CREATE_DEPDIR, ZW_PROG_COMPILER_DEPENDENCIES.
        * doc/sourcebuild.texi (Front End Directory): Document new variable.

2008-03-25  Douglas Gregor  <doug.gregor@gmail.com>

        * c-common.c (c_sizeof_or_alignof_type): If we're not allowed to
        complain when we hit an error, return ERROR_MARK_NODE.

2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/constraints.md (Pso, Psz): New constraints.
        * config/sh/sh.c (print_operand): Add %V and %W operand codes.
        * config/sh/sh.md (*andsi3_bclr, *iorsi3_bset): New insns.

2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/sh.c (sh_expand_t_scc): Emit movrt for SH2A if possible.
        * config/sh/sh.md (xorsi3_movrt, movrt): New insns.

2008-03-25  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/sh.md (prefetch): Add condition for SH2A target.
        (prefetch_sh2a): New.   

2008-03-25  Jayant Sonar  <Jayant.sonar@kpitcummins.com>
            Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/constraints.md (I28): New constraint.
        * config/sh/sh.c (broken_move): Add support for movi20s.
        * config/sh/sh.md (movsi_ie): Add the alternative for movi20s.

2008-03-25  Anil Paranjape  <anil.paranjape@kpitcummins.com>
            Jayant Sonar  <Jayant.sonar@kpitcummins.com>
            Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/sh/sh.c (SH_ATTRIBUTES): Define.
        (SYMBOL_FLAG_FUNCVEC_FUNCTION): Define.
        (print_operand): Handle resbank in %@ operand code.
        (sh_encode_section_info): New.
        (push_regs): Add conditions for resbank.
        (sh_expand_epilogue): Likewise.
        (sh_insert_attributes): Likewise.
        (sh_attribute_table): Likewise.
        (sh_handle_resbank_handler_attribute): New.
        (sh2a_handle_function_vector_handler_attribute): New.
        (sh2a_is_function_vector_call): New.
        (sh2a_get_function_vector_number): New.
        (sh2a_function_vector_p): New.
        (sh_cfun_resbank_handler_p): New.
        * config/sh/sh.md (calli): Emit jsr/n if possible.
        (calli_tbr_rel): New.
        (calli_pcrel): Emit jsr/n if possible.
        (return_i): Emit rts/n if possible.
        (call_valuei_tbr_rel): New.
        (call_valuei_pcrel): Add condition for SH2A target.
        (call_value): Likewise.
        * config/sh/sh-protos.h (sh_cfun_resbank_handler_p): Declare.
        (sh2a_get_function_vector_number): Likewise.
        (sh2a_is_function_vector_call): Likewise.
        * doc/extend.texi: Document TBR relative addressing of SH2A.
        (resbank): Add description for SH2A.

2008-03-24  Richard Guenther  <rguenther@suse.de>

        PR c/22371
        * gimplify.c (gimplify_modify_expr): For frontend type-correct
        pointer assignments change conversions according to middle-end rules.
        (gimplify_modify_expr_rhs): Deal with NULL TARGET_EXPR_INITIAL.
        * configure.ac: Include type checking in yes.
        * configure: Regenerate.

2008-03-24  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * diagnostic.c (diagnostic_count_diagnostic): Delete.
        (diagnostic_report_diagnostic): Update. Handle ICEs here.
        
2008-03-24  Nathan Sidwell  <nathan@codesourcery.com>

        * gthr-vxworks.h (UNUSED): Define.

2008-03-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (STATIC_CHAIN_REGNUM): Use R10_REG and CX_REG.

2008-03-23  Zuxy Meng <zuxy.meng@gmail.com>

        * doc/extend.texi (Function Attributes): Add missing comma in the
        example of the "alloc_size" attribute.
        
2008-03-23  Uros Bizjak  <ubizjak@gmail.com>

        Revert:
        2008-03-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-modes.def: Use 4 byte alignment on DI for
        32bit host.

        2008-03-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35496
        * stor-layout.c (update_alignment_for_field): Set minimum alignment
        of the underlying type of a MS bitfield layout to the natural
        alignment of the type.

        2008-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (assign_386_stack_local): Align DImode slots
        to their natural alignment to avoid store forwarding stalls.

2008-03-22  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (verify_expr): Recurse again for invariant addresses.
        For PHI nodes verify the address is invariant.
        * tree-ssa-ccp.c (ccp_decl_initial_min_invariant): Remove.
        (get_symbol_constant_value): Use is_gimple_min_invariant.
        (maybe_fold_stmt_indirect): Likewise.

2008-03-22  Richard Sandiford  <rsandifo@nildram.co.uk>

        PR rtl-optimization/33927
        * Makefile.in (dse.o): Depend on $(TM_P_H).
        * expr.h (extract_low_bits): Declare.
        * expmed.c (extract_low_bits): New function.
        * rtlhooks.c (gen_lowpart_general): Generalize SUBREG handling.
        * dse.c: Include tm_p.h.
        (find_shift_sequence): Remove the read_reg argument and return the
        read value.  Emit the instructions instead of returning them.
        Iterate on new_mode rather than calculating it each time.
        Check MODES_TIEABLE_P.  Use simplify_gen_subreg to convert the
        source to NEW_MODE and extract_low_bits to convert the shifted
        value to READ_MODE.
        (replace_read): Allow the load and store to have different mode
        classes.  Use extract_low_bits when SHIFT == 0.  Create the shift
        or extraction instructions before trying the replacement.  Update
        dump-file code accordingly, avoiding use of REGNO (store_info->rhs).

2008-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (assign_386_stack_local): Align DImode slots
        to their natural alignment to avoid store forwarding stalls.

2008-03-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/27946
        * config/rs6000/rs6000.md (floatdidf2): Discouraging fprs and
        encouraging but not allowing gprs for input;
        change the input constraint to !f#r.
        (fix_truncdfdi2): Discouraging fprs and encouraging but not allowing
        gprs for output;
        change the output constraint to !f#r.

2008-03-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/13958
        * config/i386/i386.md ("*floatunssi<mode2>_1"): New pattern with
        corresponding post-reload splitters.
        ("floatunssi<mode>2"): Expand to unsigned_float x87 insn pattern
        when x87 FP math is selected.
        * config/i386/i386-protos.h (ix86_expand_convert_uns_sixf_sse):
        New function prototype.
        * config/i386/i386.c (ix86_expand_convert_uns_sixf_sse): New
        unreachable function to ease macroization of insn patterns.

2008-03-21  Martin Jambor  <mjambor@suse.cz>

        * tree-data-ref.c (dump_data_dependence_relation): Avoid data
        reference dumps if ddr is NULL or dependence is unknown.

2008-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-atomic.asm (ATOMIC_TEST_AND_SET): Take
        unsigned extension into account.
        (ATOMIC_COMPARE_AND_SWAP): Likewise.
        (ATOMIC_FETCH_AND_OP, ATOMIC_FETCH_AND_COMBOP): Likewise.
        Do computations on a scratch register.

2008-03-21  Richard Guenther  <rguenther@suse.de>

        * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
        Use is_gimple_min_invariant instead of TREE_INVARIANT.
        * tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Likewise.
        * tree-ssa-dom.c (record_equality): Likewise.
        * tree-inline.c (copy_body_r): Likewise.
        * tree-ssa-pre.c (make_values_for_stmt): Remove test for
        TREE_INVARIANT.

2008-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (split_branches): Pass zero to redirect_jump
        as 'delete_unused' argument.

2008-03-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Remove
        special casing of constant qualifiers.
        * tree-ssa.c (useless_type_conversion_p_1): Instead do not
        care about them in general.
        * tree-ssa-ccp.c (ccp_fold): Addresses are constant or not
        regardless of their type.
        (fold_stmt_r): Forcefully fold *& if we end up with that.

2008-03-20  Paul Brook  <paul@codesourcery.com>

        * config.gcc (arm*-*-uclinux*): Remove duplicate arm/uclinux-elf.h.
        * config/arm/uclinux-eabi.h (SUBTARGET_EXTRA_LINK_SPEC): Add extra
        linker flags.
        * config/arm/bpabi.h (SUBTARGET_EXTRA_LINK_SPEC): Provide default
        definition.
        (LINK_SPEC): Use SUBTARGET_EXTRA_LINK_SPEC.
        * config/arm/unwind-arm.h (_Unwind_decode_target2): Add uClinux.

2008-03-20  Volker Reichelt  <v.reichelt@netcologne.de>

        * common.opt (Wmudflap): New option.
        * tree-mudflap.c (mf_xform_derefs_1): Guard warning by OPT_Wmudflap.
        (mx_register_decls): Likewise.
        (mudflap_finish_file): Likewise.
        * doc/invoke.texi: Document -Wno-mudflap.

2008-03-20  Kai Tietz  <kai.tietz@onevision.com>

        * c-format.c (replace_format_name_to_system_name): New.
        (cmp_attribs): New.
        (convert_format_name_to_system_name): New.
        (decode_format_attr): Add use of convert_format_name_to_system_name.
        (format_types_orig): Add gnu_ prefix to names.
        (check_format_info_main): Special treating of \0 escaped names for
        supporting multi-character format specifiers as I32, I64.
        (TARGET_OVERRIDES_FORMAT_ATTRIBUTES): Use of user defined attributes.
        (gnu_target_overrides_format_attributes): New.
        * c-format.h: Add structure target_ovr_attr to hold
        system specific formatter names.
        * config.gcc: Add for x86&x86_64 cygwin and mingw32 targets the
        msformat-c.o file to c_target_objs and cxx_target_objs.
        * config/i386/mingw32.h (TARGET_OVERRIDES_FORMAT_ATTRIBUTES): New.
        (TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT): New.
        (TARGET_N_FORMAT_TYPES): New.
        * config/i386/msformat-c.c: New.
        * config/i386/t-cygming: Add build rule for msformat-c.o.
        * doc/extend.texi: Add new format names gnu_* and ms_* and
        further details.
        * doc/tm.texi: (TARGET_OVERRIDES_FORMAT_ATTRIBUTES): New.

2008-03-20  Ira Rosen  <irar@il.ibm.com>

        * doc/invoke.texi (-O3): Add -ftree-vectorize to the list of
        optimizations turned on under -O3.
        (ftree-vectorize): Add that the flag is turned on with -O3.

2008-03-20  Ben Elliston  <bje@au.ibm.com>

        * regmove.c (try_auto_increment): Fix spelling error in comment.
        * final.c (final_scan_insn): Likewise.

2008-03-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/14552
        * config/i386/mmx.md (*mov<mode>_internal_rex64"): Adjust register
        allocator preferences for "y" and "r" class registers.
        ("*mov<mode>_internal"): Ditto.
        ("*movv2sf_internal_rex64"): Ditto.
        ("*movv2sf_internal"): Ditto.

2008-03-19  Michael Matz  <matz@suse.de>

        PR middle-end/35616
        * calls.c (expand_call): Check overlap of arguments with call
        address for sibcalls.

2008-03-19  Uros Bizjak  <ubizjak@gmail.com>

        PR target/35496
        * stor-layout.c (update_alignment_for_field): Set minimum alignment
        of the underlying type of a MS bitfield layout to the natural
        alignment of the type.

2008-03-19  Jan Hubicka  <jh@suse.cz>

        PR other/35094
        * toplev.c (decode_d_option): Handle all CPP flags.
        * tree-vrp.c: Update tree_pass descriptors.
        * regrename.c: Update tree_pass descriptors.
        * fwprop.c: Update tree_pass descriptors.
        * doc/invoke.texi: Remove documentation of dropped -d? flags.
        * tree-into-ssa.c: Update tree_pass descriptors.
        * tree-dump.c: Update tree_pass descriptors.
        * tree-complex.c: Update tree_pass descriptors.
        * tree-dump.h: Update tree_pass descriptors.
        * see.c: Update tree_pass descriptors.
        * cgraphbuild.c: Update tree_pass descriptors.
        * tracer.c: Update tree_pass descriptors.
        * tree-loop-distribution.c: Update tree_pass descriptors.
        * cgraph.c: Update tree_pass descriptors.
        * postreload-gcse.c: Update tree_pass descriptors.
        * postreload.c: Update tree_pass descriptors.
        * tree-ssa-loop-ch.c: Update tree_pass descriptors.
        * tree-tailcall.c: Update tree_pass descriptors.
        * tree-pass.h (tree_opt_pass): Rename to ...
        (opt_pass) ... this one; add "type" field and remove letter field.
        (gimple_opt_pass, rtl_opt_pass, simple_ipa_opt_pass): New.
        (execute_pass_list, execute_ipa_pass_list, all_passes, all_ipa_passes,
        all_lowering_passes): Update declaration.
        * ipa-cp.c: Update tree_pass descriptors.
        * final.c: Update tree_pass descriptors.
        * omp-low.c: Update tree_pass descriptors.
        * tree-ssa-dse.c: Update tree_pass descriptors.
        * ipa-reference.c: Update tree_pass descriptors.
        * tree-ssa-uncprop.c: Update tree_pass descriptors.
        * auto-inc-dec.c: Update tree_pass descriptors.
        * reorg.c: Update tree_pass descriptors.
        * cgraphunit.c: Update tree_pass descriptors.
        * tree-ssa-copyrename.c: Update tree_pass descriptors.
        * tree-ssa-ccp.c: Update tree_pass descriptors.
        * df-core.c: Update tree_pass descriptors.
        * mode-switching.c: Update tree_pass descriptors.
        * tree-nomudflap.c: Update tree_pass descriptors.
        * modulo-sched.c: Update tree_pass descriptors.
        * ipa-pure-const.c: Update tree_pass descriptors.
        * cse.c: Update tree_pass descriptors.
        * web.c: Update tree_pass descriptors.
        * tree-stdarg.c: Update tree_pass descriptors.
        * tree-ssa-math-opts.c: Update tree_pass descriptors.
        * tree-ssa-dom.c: Update tree_pass descriptors.
        * tree-nrv.c: Update tree_pass descriptors.
        * tree-ssa-alias.c: Update tree_pass descriptors.
        * loop-init.c: Update tree_pass descriptors.
        * gimple-low.c: Update tree_pass descriptors.
        * ipa-inline.c: Update tree_pass descriptors.
        * tree-ssa-sink.c: Update tree_pass descriptors.
        * global.c: Update tree_pass descriptors.
        * ifcvt.c: Update tree_pass descriptors.
        * jump.c: Update tree_pass descriptors.
        * predict.c: Update tree_pass descriptors.
        * tree-ssa-loop.c: Update tree_pass descriptors.
        * recog.c: Update tree_pass descriptors.
        * dse.c: Update tree_pass descriptors.
        * tree-ssa-ifcombine.c: Update tree_pass descriptors.
        * tree-eh.c: Update tree_pass descriptors.
        * regmove.c: Update tree_pass descriptors.
        * local-alloc.c
        * function.c: Update tree_pass descriptors.
        * tree-vectorizer.c: Update tree_pass descriptors.
        * gcse.c: Update tree_pass descriptors.
        * ipa-type-escape.c: Update tree_pass descriptors.
        * tree-if-conv.c: Update tree_pass descriptors.
        * init-regs.c: Update tree_pass descriptors.
        * ipa.c: Update tree_pass descriptors.
        * tree-ssa-phiopt.c: Update tree_pass descriptors.
        * rtl-factoring.c: Update tree_pass descriptors.
        * lower-subreg.c: Update tree_pass descriptors.
        * bt-load.c: Update tree_pass descriptors.
        * tree-dfa.c: Update tree_pass descriptors.
        * except.c: Update tree_pass descriptors.
        * emit-rtl.c: Update tree_pass descriptors.
        * cfgexpand.c: Update tree_pass descriptors.
        * tree-cfgcleanup.c: Update tree_pass descriptors.
        * cfgcleanup.c: Update tree_pass descriptors.
        * tree-ssa-pre.c: Update tree_pass descriptors.
        * tree-sra.c: Update tree_pass descriptors.
        * tree-mudflap.c: Update tree_pass descriptors.
        * tree-ssa-copy.c: Update tree_pass descriptors.
        * cfglayout.c: Update tree_pass descriptors.
        * tree-ssa-forwprop.c: Update tree_pass descriptors.
        * tree-ssa-dce.c: Update tree_pass descriptors.
        * tree-ssa.c: Update tree_pass descriptors.
        * regclass.c: Update tree_pass descriptors.
        * integrate.c: Update tree_pass descriptors.
        * tree-optimize.c: Update tree_pass descriptors.
        * tree-ssa-phiprop.c: Update tree_pass descriptors.
        * tree-object-size.c: Update tree_pass descriptors.
        * combine.c: Update tree_pass descriptors.
        * tree-outof-ssa.c: Update tree_pass descriptors.
        * bb-reorder.c: Update tree_pass descriptors.
        * stack-ptr-mod.c: Update tree_pass descriptors.
        * var-tracking.c: Update tree_pass descriptors.
        * tree-profile.c: Update tree_pass descriptors.
        * tree-vect-generic.c: Update tree_pass descriptors.
        * reg-stack.c: Update tree_pass descriptors.
        * sched-rgn.c: Update tree_pass descriptors.
        * tree-ssa-structalias.c: Update tree_pass descriptors.
        * tree-cfg.c: Update tree_pass descriptors.
        * passes.c (current_pass): Update declaration.
        (finish_optimization_passes): Update.
        (all_passes, all_ipa_passes, all_lowering_passes): Update declaration.
        (register_one_dump_file, register_dump_files_1, next_pass_1):
        Update arguments.
        (init_optimization_passes): Update handling of new types.
        (execute_one_pass, execute_pass_list, execute_ipa_pass_list): Update.
        * ipa-struct-reorg.c: Update tree_pass descriptors.
        * tree-ssa-reassoc.c: Update tree_pass descriptors.
        * combine-stack-adj.c: Update tree_pass descriptors.
        * cfgrtl.c: Update tree_pass descriptors.
        * dce.c: Update tree_pass descriptors.
        * tree-ssanames.c: Update tree_pass descriptors.

2008-03-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35609
        * tree-ssa.c (walk_data): New structure.
        (warn_uninitialized_var): If not always_executed warn with "maybe"
        instead of "is".
        (execute_early_warn_uninitialized): Compute post-dominators.
        Initialize always_executed before processing each basic block.

2008-03-18  Mikulas Patocka  <mikulas@artax.karlin.mff.cuni.cz>

        PR target/35504
        * config/i386/i386.c (x86_this_parameter): Calculate correct location
        of "this" pointer when "regparm = N" or "fastcall" is in effect.

2008-03-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/include/texinfo.tex: Update to version 2008-03-17.10.

2008-03-18  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (store_expr): Assume lang_hooks.reduce_bit_field_operations
        is true.
        (expand_expr_real_1) <REDUCE_BIT_FIELD>: Don't look at ignore.
        (expand_expr_real_1): Assume lang_hooks.reduce_bit_field_operations
        is true.  Add "&& !ignore" condition to reduce_bit_field.  Modify
        target after ignore has been set, and move there also the commputation
        of subtarget and original_target.
        * langhooks-def.h (LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS): Delete.
        (LANG_HOOKS_INITIALIZER): Remove it.
        * langhooks.h (struct lang_hooks): Remove reduce_bit_field_operations.

2008-03-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (visit_reference_op_load): If the lookup
        found an expression with constants, note that in the VN for the lhs.
        * tree-ssa-pre.c (eliminate): Visit COND_EXPR statements and
        fold them to constants if possible.  Run cleanup_cfg if done so.
        (execute_pre): Return todo.
        (do_pre): Likewise.
        (execute_fre): Likewise.
        * tree-ssa-forwprop.c (can_propagate_from): Allow propagation
        of constants.
        (get_prop_source_stmt): Look through pointer conversions.

2008-03-18  Jan Hubicka  <jh@suse.cz>

        * tree-pretty-print.c: Include predict.h.
        (dump_generic_node): Dump predictor.
        * tree.h (PREDICT_EXPR_OUTCOME, PREDICT_EXPR_PREDICTION): Update.
        * tree-gimple.c (is_gimple_stmt): Add PREDICT_EXPR.
        * gimple-low.c (lower_stmt): Likewise.
        * expr.c (expand_expr_real): Likewise.
        * predict.c (tree_bb_level_predictions): Use PREDICT_EXPRs and remove
        them.
        (build_predict_expr, build_predict_expr): New.
        * predict.h (predictor_name, build_predict_expr): Update.
        * c-typeck.c (c_finish_bc_stmt): Add prediction.
        * gimplify.c (gimplify_expr): Add PREDICT_EXPR.
        * predict.def (PRED_CONTINUE): Update hitrate.
        * tree.def (PREDICT_EXPR): Define.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark PREDICT_EXPR;
        do not handle BIND_EXPR.
        * tree-inline.c (estimate_num_insns_1): PREDICT_EXPR is free.
        * tree-cfg.c (verify_gimple_stmt): PREDICT_EXPR is valid.
        * tree-ssa-operands.c (get_expr_operands): PREDICT_EXPR takes no
        operands.

2008-03-18  Michael Matz  <matz@suse.de>

        * gcov-io.h (__gcov_merge_ior, __gcov_fork): Mark hidden.

2008-03-18  Richard Guenther  <rguenther@suse.de>

        * tree-gimple.h (is_gimple_invariant_address): Declare.
        (is_gimple_constant): Likewise.
        * tree-gimple.c (is_gimple_constant): New function.
        (is_gimple_invariant_address): Likewise.
        (is_gimple_min_invariant): Implement in terms of is_gimple_constant
        and is_gimple_invariant_address.
        * tree-ssa-loop-niter.c (expand_simple_operations): Revert
        previous change.
        * tree-data-ref.c (get_references_in_stmt): A SSA_NAME is not
        an addressable base.

2008-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35611
        * gimplify.c (gimplify_expr): Gimplify second operand of
        OMP_ATOMIC_LOAD.

2008-03-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/19637
        * fold-const.c (fold_unary): Remove restrictions of removing
        intermediate pointer-conversions (P2)(P1)P0.
        * tree-ssa-ccp.c (maybe_fold_stmt_addition): Recover from
        conversion to void pointer.
        (get_maxval_strlen): Handle addresses of the form &(*p)[0].

2008-03-16  James E. Wilson  <wilson@tuliptree.org>

        PR debug/31510
        * dbxout.c (dbxout_expand_expr, case VAR_DECL): Return NULL for
        emulated thread local variables.

2008-03-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35607
        * tree-ssa-loop-niter.c (expand_simple_operations): Do not
        expand TREE_INVARIANT operations that are not gimple invariant.

2008-03-16  Hans-Peter Nilsson  <hp@axis.com>

        * doc/extend.texi (Alignment): Say that the ABI controls
        the __alignof__ for non-strict-alignment targets rather
        than being a recommendation.

2008-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_unwind_emit): Suppress unused unwinding
        annotations.
        (arm_output_fn_unwind): Mark functions that can not be unwound.

2008-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_rtx_costs_1): Add costs for ARMv6 value
        extension instructions.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (ccp_fold): Also read from constant values
        and fold constant aggregate refs.
        (fold_const_aggregate_ref): Handle string constants
        and constructors in ARRAY_REFs.  Handle INDIRECT_REF.
        (evaluate_stmt): Simplify now that ccp_fold folds constant
        aggregate refs.

2008-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (insv): Use gen_insv_t2 and gen_insv_zero.
        (extzv): Use gen_extzv_t2.
        (insv_t2, insv_zero, extv, extzv_t2): New patterns.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (get_symbol_constant_value): Export.
        (fold_const_aggregate_ref): Likewise.
        (get_value): Return NULL if we don't have any values.
        (ccp_finalize): Set const_val to NULL after freeing it.
        * tree-flow.h (get_symbol_constant_value): Declare.
        (fold_const_aggregate_ref): Likewise.
        * tree-ssa-sccvn.c (try_to_simplify): Use them.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35593
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make sure
        to not produce negative array indices if not allowed.  Add
        parameter to indicate that.
        (maybe_fold_offset_to_component_ref): Allow negative array
        indices only for the first member of a structure.
        (maybe_fold_offset_to_reference): Allow negative array indices.
        (maybe_fold_stmt_addition): Likewise.

2008-03-15  Bjoern Haase  <bjoern.m.haase@web.de>
            Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_arch_types): Add avr6 entry.
        (avr_arch): Add ARCH_AVR6.
        (avr_mcu_types): Add 'atmega2560' and 'atmega2561' entry.
        (initial_elimination_offset): Initialize and use 'avr_pc_size' 
        instead of fixed value 2.
        (print_operand_address): Use gs() asm specifier instead of pm().
        (avr_assemble_integer): (Ditto.).
        (avr_output_addr_vec_elt): (Ditto.).
        (print_operand): Handle "!" code.
        * config/avr/avr.h (TARGET_CPU_CPP_BUILTINS): Add 
        __AVR_3_BYTE_PC__, __AVR_2_BYTE_PC__ and __AVR_HAVE_JMP_CALL__.
        (AVR_HAVE_EIJMP_EICALL): Define.
        (AVR_3_BYTE_PC): Redefine.
        (AVR_2_BYTE_PC): (Ditto.).
        (PRINT_OPERAND_PUNCT_VALID_P): Add '!' code.
        (LINK_SPEC): Add atmega2560 and atmega2561.
        (CRT_BINUTILS_SPEC): Add atmega2560 (crtm2560.o) and atmega2561 
        (crtm2561.o).
        * config/avr/avr.md (call_insn): Use eicall instead of icall 
        for 3 byte PC devices.
        (call_value_insn): (Ditto.).
        (*tablejump_enh): Use eijmp instead of ijmp for 3 byte PC devices.
        (indirect_jump): Use only for for 2 byte PC devices.
        (*tablejump): (Ditto.).
        (*indirect_jump_avr6): Add insn.
        (*tablejump_rjmp): Don't use for 3 byte PC devices.
        * config/avr/libgcc.S (__prologue_saves__): Use eijmp 
        instead of ijmp for 3 byte PC devices.
        (__tablejump2__): (Ditto.).
        * config/avr/t-avr (MULITLIB_OPTIONS): Add avr6 architecture.
        (MULITLIB_DIRNAMES): (Ditto.). 
        (MULTILIB_MATCHES): Add atmega2560 and atmega2561 to list.

2008-03-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md ("sse2_umulv1siv2di3"): Rename from
        "sse2_umulsidi3".  Use V1DI mode for operand 0.
        ("mmx_psadbw"): Use V1DI mode for operand 0.
        * config/i386/i386-modes.def (V1SI): New vector mode.
        * config/i386/i386.c (struct builtin_description)
        [IX86_BUILTIN_PMULUDQ]: Use CODE_FOR_sse2_umulv1siv1di3.
        (v1di_ftype_v8qi_v8qi): Rename from di_ftype_v8qi_v8qi.
        (v1di_ftype_v2si_v2si): Rename from di_ftype_v2si_v2si.
        (ix86_init_mmx_sse_builtins) [__builtin_ia32_psadbw]: Use
        v1di_ftype_v8qi_v8qi type.
        [__builtin_ia32_pmuludq]: Use v1di_ftype_v2si_v2si type.

        * doc/extend.texi (X86 Built-in Functions) [__builtin_ia32_psadbw,
        __builtin_ia32_pmuludq]: Fix the mode of return value.

2008-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/35595
        * tree-ssa-pre.c (bitmap_find_leader): Handle expression
        being a PHI_NODE.

2008-03-14  Bob Wilson  <bob.wilson@acm.org>
        
        * doc/invoke.texi (Option Summary, Xtensa Options): Document
        -mserialize-volatile and -mno-serialize-volatile Xtensa options.
        * config/xtensa/xtensa.c (print_operand): Do not emit MEMW instructions
        unless TARGET_SERIALIZE_VOLATILE is enabled.
        * config/xtensa/xtensa.md (*lsiu, *ssiu): Likewise.
        * config/xtensa/xtensa.h (TARGET_DEFAULT): Add MASK_SERIALIZE_VOLATILE.
        * config/xtensa/xtensa.opt (mserialize_volatile): New option.

2008-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34172
        * tree-flow.h (refs_may_alias_p): Declare.
        (get_single_def_stmt): Likewise.
        (get_single_def_stmt_from_phi): Likewise.
        (get_single_def_stmt_with_phi): Likewise.
        * tree-dfa.c (refs_may_alias_p): New function.
        (get_single_def_stmt): Likewise.
        (get_single_def_stmt_from_phi): Likewise.
        (get_single_def_stmt_with_phi): Likewise.
        * tree-ssa-sccvn.c (get_def_ref_stmt_vuses): New function.
        (vn_reference_lookup_1): New helper function.
        (vn_reference_lookup): Walk the virtual use-def chain to
        continue searching for a match if the def does not alias the
        reference we are looking for.

2008-03-14  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi (Binaries): Remove UCLA archive.  Add HVCC
        archive and Perzl.  Update The Written Word listing.

2008-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/34043
        PR tree-optimization/33989
        * tree-ssa-pre.c (execute_pre): Allow SCCVN to do insertion
        when doing FRE.
        (bitmap_find_leader): Use extra argument to verify dominance
        relationship inside a basic-block.
        (can_PRE_operation): Add VIEW_CONVERT_EXPR.
        (find_leader_in_sets): Adjust.
        (create_component_ref_by_pieces): Take extra argument for
        dominance check, handle lookup failures.
        (find_or_generate_expression): Likewise.
        (create_expression_by_pieces): Likewise.
        (insert_into_preds_of_block): Adjust.
        (create_value_expr_from): If asked for, verify all operands
        are in the blocks AVAIL_OUT set.
        (make_values_for_stmt): Check for SSA_NAMEs that are life
        over an abnormal edge.
        (compute_avail): Remove such check.
        (do_SCCVN_insertion): New function.
        (eliminate): If we do not find a leader suitable for replacement
        insert a replacement expression from SCCVN if available.
        * tree-ssa-sccvn.h (run_scc_vn): Update prototype.
        (struct vn_ssa_aux): Add needs_insertion flag.
        * tree-ssa-sccvn.c (may_insert): New global flag.
        (copy_reference_ops_from_ref): Value-number union member access
        based on its size, not type and member if insertion is allowed.
        (visit_reference_op_load): For a weak match from union type
        punning lookup a view-converted value and insert a SSA_NAME
        for that value if that is not found.
        (visit_use): Make dumps shorter.  Do not disallow value numbering
        SSA_NAMEs that are life over an abnormal edge to constants.
        (free_scc_vn): Release inserted SSA_NAMEs.
        (run_scc_vn): New flag to specify whether insertion is allowed.
        Process SSA_NAMEs in forward order.
        * tree-ssa-loop-im.c (for_each_index): Handle invariant
        ADDR_EXPRs inside VIEW_CONVERT_EXPR.
        * fold-const.c (fold_unary): Fold VIEW_CONVERT_EXPRs from/to
        pointer type to/from integral types that do not change the
        precision to regular conversions.

2008-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (X86 Built-in Functions) [__builtin_ia32_psll?,
        __builtin_ia32_psrl?, __builtin_ia32_psra?, __builtin_ia32_psll?i,
        __builtin_ia32_psrl?i, __builtin_ia32_psra?i, __builtin_ia32_psll?128,
        __builtin_ia32_psrl?128, __builtin_ia32_psra?128]: Fix the mode of
        input arguments and the mode of return value.  Built-in functions
        that operate on whole 64-bit MMX register now use V1DI mode.

2008-03-13  Alon Dayan  <alond@il.ibm.com>
            Olga Golovanevsky  <olga@il.ibm.com>

        PR tree-optimization/35041
        * ipa-struct-reorg.c (find_pos_in_stmt_1): Add another option
        to locate the right position in a statement.

2008-03-13  Uros Bizjak  <ubizjak@gmail.com>

        PR target/34000
        PR target/35553
        * config/i386/xmmintrin.h:  Change all static inline functions to
        extern inline and add __gnu_inline__ attribute.
        * config/i386/bmintrin.h: Ditto.
        * config/i386/smmintrin.h: Ditto.
        * config/i386/tmmintrin.h: Ditto.
        * config/i386/mmintrin-common.h: Ditto.
        * config/i386/ammintrin.h: Ditto.
        * config/i386/emmintrin.h: Ditto.
        * config/i386/pmmintrin.h: Ditto.
        * config/i386/mmintrin.h: Ditto.
        * config/i386/mm3dnow.h: Ditto.

2008-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/35185
        * omp-low.c (lower_regimplify, init_tmp_var, save_tmp_var): Removed.
        (lower_omp_2): New function.
        (lower_omp_1, lower_omp): Rewritten.

2008-03-13  Danny Smith  <dannysmith@users.sourceforge.net>

        PR 35054
        * doc/extend.texi (Structure-Packing Pragmas): Replace "Win32"
        with the phrase "Microsoft Windows compilers".
        (Push/Pop Macro Pragmas): New subsection. Document
        #pragma push_macro and pragma pop_macro.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (output_move_double): Prefer LDRD to LDM.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/thumb2.md: Extend peephole to cover 3-arg subs.
        (thumb2_alusi3_short): Exclude PLUS and MINUS.
        (thumb2_addsi_shortim): Rename ...
        (thumb2_addsi_short): ... to this.  Allow register operands.
        (thumb2_subsi_short): New pattern.
        (thumb2_one_cmplsi2_short,
        thumb2_negsi2_short): New patterns and peepholes.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_size_rtx_costs): Use ARM costs for Thumb-2.

2008-03-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (int_cond): New code iterator.
        (fp_cond): Ditto.
        ("s<code>"): Macroize expander from seq, sne, sgt, sgtu, slt, sltu,
        sge, sgeu, sle and sleu expanders usign int_cond code iterator.
        ("s<code>"): Macroize expander from sunordered, sordered, suneq, sunge,
        sungt, sunle, sunlt and sltgt expanders usign fp_cond code iterator.
        ("b<code>"): Macroize expander from beq, bne, bgt, bgtu, blt, bltu,
        bge, bgeu, ble and bleu expanders usign int_cond code iterator.
        ("b<code>"): Macroize expander from bunordered, bordered, buneq, bunge,
        bungt, bunle, bunlt and bltgt expanders usign fp_cond code iterator.

2008-03-12  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (use_return_insn): Use offsets->saved_regs_mask
        instead of {arm,thumb}_compute_save_reg_mask.
        (output_return_instruction): Ditto.
        (thumb_unexpanded_epilogue): Ditto.
        (thumb1_expand_prologue): Ditto.
        (thumb1_output_function_prologue): Ditto.
        (arm_set_return_address): Ditto.
        (thumb_set_return_address): Ditto.
        (arm_get_frame_offsets): Set offsets->saved_regs_mask.  Push extra
        regs to achieve stack alignment.
        (thumb1_compute_save_reg_mask): Fix compiler warning.
        (arm_output_epilogue): Use offsets->saved_regs_mask.
        Adjust stack pointer by poping call clobered registers.
        (arm_expand_prologue): Use offsets->saved_regs_mask.
        Adjust stack pointer by pushing extra registers.
        * config/arm.h (arm_stack_offsets): Add saved_regs_mask.

2008-03-12  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-opt/35422
        * fold-const.c (fold_unary) <NOP_EXPR>: Distribute a narrowing
        conversion to the operands of a multiplication.

2008-03-12  Richard Guenther  <rguenther@suse.de>

        * Makefile.in (OBJS-common): Add tree-ssa-phiprop.o
        (tree-ssa-phiprop.o): Copy dependencies from tree-ssa-forwprop.o.
        * timevar.def (TV_TREE_PHIPROP):&