2007-05-21 Andrew Pinski <andrew_pinski@playstation.sony.com>

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

2007-05-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31995
        * tree-chrec.c (evolution_function_is_affine_multivariate_p):
        Add loopno argument.  Use evolution_function_is_invariant_rec_p
        instead of evolution_function_is_constant_p.
        Update calls to evolution_function_is_affine_multivariate_p.
        * tree-chrec.h  (evolution_function_is_affine_multivariate_p):
        Add loopno argument.
        * tree-scalar-evolution.c (gather_chrec_stats): Call
        evolution_function_is_affine_multivariate_p with a  loop
        number of 0.
        * tree-data-ref.c (analyze_miv_subscript): Likewise.
        (analyze_overlapping_iterations): Likewise.
        (access_functions_are_affine_or_constant_p):
        Likewise.
        (build_classic_dist_vector_1): If the access functions
        are equal, don't do anything.

2007-05-21  Paolo Bonzini  <bonzini@gnu.org>
            Paolo Carlini  <pcarlini@suse.de>
            Uros Bizjak  <ubizjak@gmail.com>

        * c-cppbuiltin.c (c_cpp_builtins): Define
        __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2,
        __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8,
        __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16, if appropriate.
        * doc/cpp.texi ([Standard Predefined Macros]): Document.

2007-05-21  Mike Stump  <mrs@apple.com>

        * config/darwin.h (LINK_COMMAND_SPEC): Add .cxx for dsymutil
        handling as well.
        * config/darwin9.h (LINK_COMMAND_SPEC): Likewise.

2007-05-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/tmmintrin.h (_mm_alignr_epi8): Provide macro
        implementation if __OPTIMIZE__ is not defined.
        (_mm_alignr_pi8): Ditto.
        * config/i386/ammintrin.h (_mm_extracti_si64): Ditto.
        (_mm_inserti_si64): Ditto.
        * config/i386/emmintrin.h (_mm_shuffle_pd): Ditto.
        (_mm_slli_epi16): Ditto.
        (_mm_slli_epi32): Ditto.
        (_mm_slli_epi64): Ditto.
        (_mm_srai_epi16): Ditto.
        (_mm_srai_epi32): Ditto.
        (_mm_srli_si128): Ditto.
        (_mm_slli_si128): Ditto.
        (_mm_srli_epi16): Ditto.
        (_mm_srli_epi32): Ditto.
        (_mm_srli_epi64): Ditto.
        (_mm_extract_epi16): Ditto.
        (_mm_insert_epi16): Ditto.
        (_mm_shufflehi_epi16): Ditto.
        (_mm_shufflelo_epi16): Ditto.
        (_mm_shuffle_epi32): Ditto.
        * config/i386/xmmintrin.h (_mm_extract_pi16): Ditto.
        (_m_pextrw): Ditto.
        (_mm_insert_pi16): Ditto.
        (_m_pinsrw): Ditto.
        (_mm_shuffle_pi16): Ditto.
        (_m_pshufw): Ditto.
        (_mm_shufle_ps): Ditto.
        (_mm_prefetch): Ditto.

2007-05-21  Andreas Krebbel  <krebbel1@de.ibm.com>

        * defaults.h (IBM_FLOAT_FORMAT): Macro definition removed.
        * doc/tm.texi (IBM_FLOAT_FORMAT): Documentation entry removed.
        * real.c (encode_i370_single, decode_i370_single,
        encode_i370_double, decode_i370_double): Functions removed.
        (i370_single_format, i370_double_format): Initializations removed.
        (real_maxval, round_for_format, exact_real_truncate, significand_size):
        Consider the log2_b field to always be one.
        (ieee_single_format, mips_single_format, coldfire_single_format,
        ieee_double_format, mips_double_format, coldfire_double_format,
        ieee_extended_motorola_format, ieee_extended_intel_96_format,
        ieee_extended_intel_128_format, ieee_extended_intel_96_round_53_format,
        ibm_extended_format, mips_extended_format, ieee_quad_format,
        mips_quad_format, vax_f_format, vax_d_format, vax_g_format,
        decimal_single_format, decimal_double_format, decimal_quad_format,
        c4x_single_format, c4x_extended_format, real_internal_format): Remove
        initialization of log2_b.
        * real.h (i370_single_format, i370_double_format): Declarations removed.
        * c-cppbuiltin.c (builtin_define_float_constants): Consider the log2_b
        field to always be one.

2007-05-21  Andreas Schwab  <schwab@suse.de>

        * config/ia64/ia64.c (emit_predicate_relation_info): Fix use of
        NOTE_INSN_BASIC_BLOCK_P.
        (process_for_unwind_directive): Likewise.

2007-05-21  Nathan Sidwell  <nathan@codesourcery.com>

        * builtins.c (expand_builtin_setjmp_setup): Update comment.
        * function.h (struct function): Move va_list_gpr_size,
        va_list_fpr_size, function_frequency to front of bitfields.  Add
        calls_unwind_init.
        (current_function_calls_unwind_init): New.
        * except.c (expand_builtin_unwind_init): Set
        current_function_calls_unwind_init not
        current_function_has_nonlocal_label.
        * reload1.c (has_nonexceptional_receiver): New.
        (reload): Use it and current_function_calls_unwind_init to
        determine whether call-saved regs must be saved.

2007-05-20  Jan Hubicka  <jh@suse.cz>

        * gengtype.c (adjust_field_rtx_def): Use NOTE_KIND instead of
        NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P when possible.
        * ddg.c (create_ddg): LIkewise.
        * final.c (final): Remove hunk moving line numbernotes around since
        they are no longer present at this stage.
        (final_scan_insn): Use NOTE_KIND instead of
        NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P when possible.
        (output_asm_label): Likewise.
        * reorg.c (dbr_schedule): Likewise.
        * haifa-sched.c (unlink_other_notes): Likewise.
        * mode-switching.c (optimize_mode_switching): Likewise.
        * graph.c (start_bb): Likewise.
        * rtl.def (NOTE): Update description.
        * jump.c (squeeze_notes): Delete.
        (mark_jump_label): Use NOTE_KIND instead of NOTE_LINE_NUMBER; use
        NOTE_INSN_BASIC_BLOCK_P when possible.
        * ifcvt.c (dead_or_predicable): Remove call of squeeze_notes.
        * dwarf2out.c (gen_label_die): Use NOTE_KIND instead of
        NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P when possible.
        (dwarf2out_var_location): Likewise.
        * cfgbuild.c (make_edges): Likewise.
        (find_basic_blocks_1): Likewise.
        * function.c (reorder_blocks_1): Likewise.
        (epilogue_done): Likewise.
        (reposition_prologue_and_epilogue_notes): Likewise.
        * print-rtl.c (print_rtx): Likewise; drop code for printing line number
        notes.
        (print_rtl): Likewise.
        (print_rtl_single): Likewise.
        * gcse.c (insert_insn_start_bb): Likewise.
        * alias.c (init_alias_analysis): Likewise.
        * calls.c (fixup_tail_calls): Likewise.
        * except.c (sjlj_emit_function_enter): Likewise.
        * emit-rtl.c (add_insn_after): Likeiwse.
        (emit_label_before): Likewise.
        (emit_label_after): Likewise.
        (emit_note_before, emit_note_after, emit_note): Update
        parameter to be enum insn_note; do not deal with source
        files.
        * cfgcleanup.c (merge_blocks_move_predecessor_nojumps):
        Use NOTE_KIND instead of NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P
        when possible.
        (merge_blocks_move_successor_nojumps): Simplify now when
        we don't have BLOCK notes.
        (try_optimize_cfg): Likewise.
        * cfglayout.c (skip_insns_after_block): Likewise.
        (record_effective_endpoints): Likewise.
        (duplicate_insn_chain): Likewise.
        * varasm.c (output_constant_pool_1): Likewise.
        * sched-deps.c (sched_analyze): Likewise.
        * rtl.c (NOTE_INSN_MAX_isnt_negative_adjust_NOTE_INSN_BIAS):
        Exterminate.
        (note_insn_name): Simplify now when NOTE_INSN_BIAS is gone.
        * rtl.h (NOTE_SOURCE_LOCATION, NOTE_EXPANDED_LOCATION): Exterminate.
        (SET_INSN_DELETED): Simplify.
        (NOTE_LINE_NUMBER): Exterminate.
        (NOTE_LINE_KIND): New.
        (NOTE_INSN_BASIC_BLOCK_P): Update.
        (enum insn_note): Simplify.
        (GET_NOTE_INSN_NAME) Simplify.
        (emit_note_before, emit_note_after, emit_note): Update prototype.
        (squeeze_notes): Remove.
        * sched-int.h (NOTE_NOT_BB_P): Update.
        * resource.c (mark_target_live_regs): Update.
        * sched-rgn.c (debug_dependencies): Update.
        * sched-vis.c (print_insn): Update.
        * config/alpha/alpha.c (alpha_handle_trap_shadows): Update.
        * config/i386/i386.c (ix86_output_function_epilogue): Update.
        * config/sh/sh.c (sh_adjust_unroll_max): Function dead since gcc 4.0.0.
        (TARGET_ADJUST_UNROLL_MAX): Likewise.
        (split_branches): Update.
        (sh_optimize_target_register_callee_saved): Remove hunk dead since gcc
        4.0.0.
        (sh_adjust_unroll_max): Exterminate.
        * config/c4x/c4x.c (c4x_reorg): Use SET_INSN_DELETED.
        * config/m68hc11/m68hc11.c (m68hc11_check_z_replacement): Likewise.
        (m68hc11_reorg): Likewise.
        * config/ia64/ia64.c (emit_insn_group_barriers): Update.
        (emit_predicate_relation_info): Update.
        (process_for_unwind_directive): Update.
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Update.
        (output_call): Update.
        * config/pa/pa.c (output_lbranch): Update.
        (output_millicode_call): Update.
        (output_call): Update.
        (pa_combine_instructions): Update.
        * config/mips/mips.c (mips16_gp_pseudo_reg): Update.
        * config/bfin/bfin.c (gen_one_bundle): Update.
        * cfgrtl.c (can_delete_note_p): Update.
        (delete_insn): Update.
        (rtl_merge_blocks): Update.
        (commit_one_edge_insertion): Update.
        (rtl_verify_flow_info): Update.
        * stmt.c (expand_case): Do not call squeeze_notes.

2007-05-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
        
        PR middle-end/7651
        PR c++/11856
        PR c/12963
        PR c/23587
        PR other/29694
        * c.opt (Wtype-limits): New.
        * doc/invoke.texi (Wtype-limits): Document it.
        (Wextra): Enabled by -Wextra.
        * c-opts.c (c_common_post_options): Enabled by -Wextra.
        * c-common.c (shorten_compare): Warn with Wtype-limits.

2007-05-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/tmmintrin.h (_mm_alignr_epi32): Implement as always
        inlined function, not as a macro.
        (_mm_alignr_pi8): Ditto.
        * config/i386/ammintrin.h (_mm_extracti_si64): Ditto.
        (_mm_inserti_si64): Ditto.
        * config/i386/emmintrin.h (_mm_shuffle_pd): Ditto.
        (_mm_extract_epi16): Ditto.
        (_mm_insert_epi16): Ditto.
        (_mm_shufflehi_epi16): Ditto.
        (_mm_shufflelo_epi16): Ditto.
        (_mm_shuffle_epi32): Ditto.
        * config/i386/xmmintrin.h (_mm_set_ss): Use 0.0f for float constant.
        * config/386/mm3dnow.h: Add __attribute__((__always_inline__)) to
        all functions.
        (_m_from_float): Add __extension__ to conversion.  Use 0.0f for
        float constant.
        (_m_to_float): Use C89 compatible assignment.

2007-04-20  Martin Michlmayr  <tbm@cyrius.com>

        PR target/32007
        * config/arm/lib1funcs.asm: Define __ARM_ARCH__ on v2/v3 machines.

2007-05-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * doc/invoke.texi (Wreturn-type): Complete description.
        (Wextra): Delete item about return-type warning.
        * c-decl.c: Delete redundant Wextra warning.
        
2007-05-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31585
        * config/i386/pmmintrin.h: Do not include xmmintrin.h
        * config/i386/xmmintrin.h (_mm_extract_pi16): Implement as always
        inlined function, not as a macro.
        (_mm_prefetch): Ditto.
        (_m_pextrw): Ditto.
        (_mm_insert_pi16): Ditto.
        (_m_pinsrw): Ditto.
        (_mm_shuffle_pi16): Ditto.  Add const to __N argument.
        (_m_pshufw): Ditto. Add const to __N argument.
        (_mm_shufle_ps): Ditto.  Add const to __mask argument.
        * config/i386/emmintrin.h (_mm_slli_epi16): Add const to __B argument.
        (_mm_slli_epi32): Ditto.
        (_mm_srli_si128): Implement as always inlined function, not as a macro.
        Add __inline to function declaration.
        (_mm_slli_si128): Ditto.

2007-05-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sfp-machine.h (FP_EX_INVALID, FP_EX_DENORM,
        FP_EXP_DIVZERO, FP_EX_OVERFLOW, FP_EX_UNDERFLOW, FP_EX_INEXACT):
        New constants.
        (struct fenv): New structure.
        (FP_HANDLE_EXCEPTIONS): New define.
        (FP_RND_NEAREST, FP_RND_ZERO, FP_RND_PINF, FP_RND_MINF): New constants.
        (_FP_DECL_EXP): New define.
        (FP_INIT_ROUNDMODE): New define.
        (FP_ROUNDMODE): New define.

2007-05-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Warning Options): Add -Wconversion-sign.
        (Wconversion): Update description.
        (Wconversion-sign): New.
        * c.opt (Wconversion-sign): New.
        * c-opts.c (c_common_post_options): Uninitialized Wconversion-sign
        means disabled for C++. Otherwise, take the status of Wconversion.
        * c-common.c (conversion_warning): Warn with either Wconversion or
        Wconversion-sign.
        (warnings_for_convert_and_check): Conditions are already checked by
        conversion_warning.
        (convert_and_check): Don't check warnings if the conversion failed.

2007-05-19 Andy Hutchinson <HutchinsonAndy@netscape.net>
           Anatoly Sokolov <aesok@dol.ru>

        * config/avr/avr-protos.h (expand_prologue, expand_epilogue, 
        avr_epilogue_uses) : Add declaration.
        * config/avr/predicates.md (avr_sp_immediate_operand): New predicate.
        * config/avr/constraints.md (R): New constraint.
        config/avr/avr.md (SREG_ADDR, UNSPEC_SEI, UNSPEC_CLI, 
        UNSPECV_PROLOGUE_SAVES, UNSPECV_EPILOGUE_RESTORES): New constants.
        (*pop1, *pop2, *pop3, *pop4, *pop5): Combine into ...
        (*addhi3_sp_R_pc2, *addhi3_sp_R_pc3): ... these patterns.
        (*movhi_sp, popqi, pophi, enable_interrupt, disable_interrupt, 
        call_prologue_saves, epilogue_restores, return_from_epilogue,
        return_from_main_epilogue, return_from_interrupt_epilogue, 
        return_from_naked_epilogue, prologue, epilogue): New patterns.
        (jump): Handle symbol reference.
        * config/avr/avr.c (out_adj_frame_ptr, out_set_stack_ptr, 
        avr_output_function_prologue, avr_output_function_epilogue): Remove 
        functions.
        (avr_init_machine_status, expand_prologue, expand_epilogue, 
        avr_asm_function_end_prologue, avr_epilogue_uses, 
        avr_asm_function_begin_epilogue): New functions.
        (prologue_size, epilogue_size, jump_tables_size): Remove global 
        variables.
        (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Remove.
        (TARGET_ASM_FUNCTION_END_PROLOGUE): Define.
        (TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): Define.
        (avr_override_options): Initialise init_machine_status.
        (output_movhi): Handle all stack pointer loads.
        (out_movqi_r_mr, out_movqi_mr_r): Handle SREG_ADDR address.
        (avr_output_addr_vec_elt): Do not use variable jump_tables_size.
        * config/avr/avr.h (AVR_2_BYTE_PC, AVR_3_BYTE_PC): New.
        (EPILOGUE_USES) Redefine.
        (machine_function) Declare.

2007-05-19  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c (mips_offset_within_alignment_p): Tweak comment.
        Use a single return statement.

2007-05-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/30250
        * builtins.c (do_mpfr_lgamma_r): New.
        (fold_builtin_2): Handle builtin gamma_r/lgamma_r.
        * tree.h (CASE_FLT_FN_REENT): New.

2007-05-18  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (print_die): Use '%ld' not '%lu' to print a 'long'.
        (output_die): Use 'unsigned long' with %x.
        * sched-vis.c (print_value): Use 'unsigned HOST_WIDE_INT' and
        HOST_WIDE_INT_PRINT_HEX to print HOST_WIDE_INT.
        * tree-dump.c (dump_pointer): Use 'unsigned long' for %lx.

        * unwind-dw2.c (uw_identify_context): Use the CFA, not the IP.

2007-05-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/31989
        PR target/31681
        PR target/31666
        * config/i386/i386.c (init_cumulative_args): Set maybe_vaarg to
        true if function has no argument.

2007-05-18  DJ Delorie  <dj@redhat.com>

        * config/mips/mips.c (mips_offset_within_alignment_p): New.
        (mips_symbolic_constant_p): Call it for TPREL and DTPREL symbols.

2007-05-18  Uros Bizjak  <ubizjak@gmail.com>

        * longlong.h (__x86_64__): Add definitions for add_ssaaaa,
        sub_ddmmss, umul_ppmm, udiv_qrnnd, count_leading_zeros and
        count_trailing_zeros.
        (__i386__): Implement count_leading_zeros using __builtin_clz().
        Implement count_trailing_zeros usign __builtin_ctz().

2007-05-18  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/vxworks.h (ASM_PREFERRED_EH_DATA_FORMAT): Undefine.

2007-05-18  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/31344
        * expr.c (emit_move_change_mode): Change mode of push operands here.

2007-05-17  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31953
        * tree-vrp.c (set_value_range_to_value): Add equiv parameter.
        Change all callers.
        (set_value_range_to_null): Call set_value_range_to_value.
        (extract_range_from_comparison): Likewise.

2007-05-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.c (print_version): Output GMP/MPFR version info.

        * builtins.c (CASE_MATHFN_REENT): New macro.
        (mathfn_built_in): Use it.
        * builtins.def (BUILT_IN_GAMMA_R, BUILT_IN_GAMMAF_R,
        BUILT_IN_GAMMAL_R, BUILT_IN_LGAMMA_R, BUILT_IN_LGAMMAF_R,
        BUILT_IN_LGAMMAL_R): New.
        * doc/extend.texi: Document new builtins.

        PR middle-end/31796
        * builtins.c (do_mpfr_remquo): New.
        (fold_builtin_2): Handle BUILT_IN_DREM/BUILT_IN_REMAINDER.
        (fold_builtin_3): Handle BUILT_IN_REMQUO.

        PR middle-end/30251
        * builtins.c (fold_builtin_1): Handle y0, y1.
        (fold_builtin_2): Handle yn.

        PR middle-end/30251
        * builtins.c (do_mpfr_bessel_n): New.
        (fold_builtin_1): Handle BUILT_IN_J0 and BUILT_IN_J1.
        (fold_builtin_2): Handle BUILT_IN_JN.

2007-05-17  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/31965
        * config/i386/mingw32.h (_INTEGRAL_MAX_BITS): Define builtin as
        TYPE_PRECISION (intmax_type_node).

2007-05-17  Steve Ellcey  <sje@cup.hp.com>

        PR target/31850
        * reload.c (subst_reloads): Remove checking.

2007-05-17  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/31691
        * combine.c (simplify_set): Build a new src pattern instead of
        substituting its operands in the COMPARE case.

2007-05-17  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-vrp.c (finalize_jump_threads): Do not care about dominance info.
        (execute_vrp): Preserve loops through jump threading.
        * tree-ssa-threadupdate.c (thread_single_edge,
        dbds_continue_enumeration_p, determine_bb_domination_status,
        thread_through_loop_header): New functions.
        (create_edge_and_update_destination_phis,
        create_edge_and_update_destination_phis): Set loops for the new blocks.
        (prune_undesirable_thread_requests): Removed.
        (redirect_edges): Do not pretend that redirect_edge_and_branch can
        create new blocks.
        (thread_block): Do not call prune_undesirable_thread_requests.
        Update loops.
        (mark_threaded_blocks): Select edges to thread here.
        (thread_through_all_blocks): Take may_peel_loop_headers argument.
        Thread edges through loop headers independently.
        * cfgloopmanip.c (create_preheader, mfb_keep_just): Export.
        * tree-pass.h (TODO_mark_first_instance): New.
        (first_pass_instance): Declare.
        * cfghooks.c (duplicate_block): Put the block to the original loop
        if copy is not specified.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Preserve loops through
        jump threading.  Pass may_peel_loop_headers to
        thread_through_all_blocks according to first_pass_instance.
        * cfgloop.h (create_preheader): Declare.
        * tree-flow.h (thread_through_all_blocks): Declaration changed.
        * basic-block.h (mfb_keep_just, mfb_kj_edge): Declare.
        * passes.c (first_pass_instance): New variable.
        (next_pass_1): Set TODO_mark_first_instance.
        (execute_todo): Set first_pass_instance.

2007-05-17  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/24659
        * optabs.h (enum optab_index): Add OTI_vec_unpacks_float_hi,
        OTI_vec_unpacks_float_lo, OTI_vec_unpacku_float_hi,
        OTI_vec_unpacku_float_lo, OTI_vec_pack_sfix_trunc and
        OTI_vec_pack_ufix_trunc.
        (vec_unpacks_float_hi_optab): Define new macro.
        (vec_unpacks_float_lo_optab): Ditto.
        (vec_unpacku_float_hi_optab): Ditto.
        (vec_unpacku_float_lo_optab): Ditto.
        (vec_pack_sfix_trunc_optab): Ditto.
        (vec_pack_ufix_trunc_optab): Ditto.
        * genopinit.c (optabs): Implement vec_unpack[s|u]_[hi|lo]_optab
        and vec_pack_[s|u]fix_trunc_optab using
        vec_unpack[s|u]_[hi\lo]_* and vec_pack_[u|s]fix_trunc_* patterns
        * tree-vectorizer.c (supportable_widening_operation): Handle
        FLOAT_EXPR and CONVERT_EXPR.  Update comment.
        (supportable_narrowing_operation): New function.
        * tree-vectorizer.h (supportable_narrowing_operation): Prototype.
        * tree-vect-transform.c (vectorizable_conversion): Handle
        (nunits_in == nunits_out / 2) and (nunits_out == nunits_in / 2) cases.
        (vect_gen_widened_results_half): Move before vectorizable_conversion.
        (vectorizable_type_demotion): Call supportable_narrowing_operation()
        to check for target support.
        * optabs.c (optab_for_tree_code) Return vec_unpack[s|u]_float_hi_optab
        for VEC_UNPACK_FLOAT_HI_EXPR, vec_unpack[s|u]_float_lo_optab
        for VEC_UNPACK_FLOAT_LO_EXPR and vec_pack_[u|s]fix_trunc_optab
        for VEC_PACK_FIX_TRUNC_EXPR.
        (expand_binop): Special case mode of the result for
        vec_pack_[u|s]fix_trunc_optab.
        (init_optabs): Initialize vec_unpack[s|u]_[hi|lo]_optab and
        vec_pack_[u|s]fix_trunc_optab.

        * tree.def (VEC_UNPACK_FLOAT_HI_EXPR, VEC_UNPACK_FLOAT_LO_EXPR,
        VEC_PACK_FIX_TRUNC_EXPR): New tree codes.
        * tree-pretty-print.c (dump_generic_node): Handle
        VEC_UNPACK_FLOAT_HI_EXPR, VEC_UNPACK_FLOAT_LO_EXPR and
        VEC_PACK_FIX_TRUNC_EXPR.
        (op_prio): Ditto.
        * expr.c (expand_expr_real_1): Ditto.
        * tree-inline.c (estimate_num_insns_1): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Ditto.

        * config/i386/sse.md (vec_unpacks_float_hi_v8hi): New expander.
        (vec_unpacks_float_lo_v8hi): Ditto.
        (vec_unpacku_float_hi_v8hi): Ditto.
        (vec_unpacku_float_lo_v8hi): Ditto.
        (vec_unpacks_float_hi_v4si): Ditto.
        (vec_unpacks_float_lo_v4si): Ditto.
        (vec_pack_sfix_trunc_v2df): Ditto.

        * doc/c-tree.texi (Expression trees) [VEC_UNPACK_FLOAT_HI_EXPR]:
        Document.
        [VEC_UNPACK_FLOAT_LO_EXPR]: Ditto.
        [VEC_PACK_FIX_TRUNC_EXPR]: Ditto.
        * doc/md.texi (Standard Names) [vec_pack_sfix_trunc]: Document.
        [vec_pack_ufix_trunc]: Ditto.
        [vec_unpacks_float_hi]: Ditto.
        [vec_unpacks_float_lo]: Ditto.
        [vec_unpacku_float_hi]: Ditto.
        [vec_unpacku_float_lo]: Ditto.

2007-05-16  Uros Bizjak  <ubizjak@gmail.com>

        * soft-fp/README: Update for new files.
        * soft-fp/floattisf.c: New file.
        * soft-fp/floattidf.c: New file.
        * soft-fp/floattitf.c: New file.
        * soft-fp/floatuntisf.c: New file.
        * soft-fp/floatuntidf.c: New file.
        * soft-fp/floatuntitf.c: New file.
        * soft-fp/fixsfti.c: New file.
        * soft-fp/fixdfti.c: New file.
        * soft-fp/fixtfti.c: New file.
        * soft-fp/fixunssfti.c: New file.
        * soft-fp/fixunsdfti.c: New file.
        * soft-fp/fixunstfti.c: New file.
        * soft-fp/extendxftf.c: New file.
        * soft-fp/trunctfxf.c: New file.

        * libgcc-std.ver (__extendxftf2): Added to GCC_4.3.0 section.
        (__trunctfxf2): Ditto.

        * config/i386/libgcc-x86_64-glibc.ver (__addtf3, __divtf3, __eqtf2,
        __extenddftf2, __extendsftf2, __fixtfdi, __fixtfsi, __fixtfti,
        __fixunstfdi, __fixunstfsi, __fixunstfti, __floatditf, __floatsitf,
        __floattitf, __floatunditf, __floatunsitf, __floatuntitf, __getf2,
        __letf2, __multf3, __negtf2, __subtf3, __trunctfdf2, __trunctfsf2,
        __unordtf2): Exclude and add to GCC_4.3.0 section for x86_64 targets.

        * config/i386/t-fprules-softfp64: New file.
        * config/i386/sfp-machine.h: New file.
        * config.gcc (x86_64-*-linux*, x86_64-*-kfreebsd*-gnu,
        x86_64-*-knetbsd*-gnu): Add i386/t-fprules-softfp64
        and soft-fp/t-softfp to tmake_file.
        (i[34567]86-*-linux*, i[34567]86-*-kfreebsd*-gnu,
        i[34567]86-*-knetbsd*-gnu): Ditto for --enable-targets=all.
        
        * config/i386/t-linux64 (softfp_wrap_start): New.
        (softfp_wrap_end): New.
        * config/i386/i386.c (ix86_scalar_mode_supported): TFmode is
        supported for TARGET_64BIT.

2007-05-16  Rafael Avila de Espindola  <espindola@google.com>

        * c-common.c (c_common_signed_or_unsigned_type): Emulate 
        c_common_unsigned_type behavior.

2007-05-16  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.c (legitimize_tls_address): Mark __tls_get_addr
        calls as pure.

2007-05-16  Eric Christopher  <echristo@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Move altivec register
        saving after stack push. Set sp_offset whenever we push.
        (rs6000_emit_epilogue): Move altivec register restore before
        stack push.

2007-05-16  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac: Allow sysroots to be relocated under $prefix as
        well as $exec_prefix.
        * configure: Regenerate.

2007-05-16  Richard Sandiford  <richard@codesourcery.com>

        Revert:

        2007-05-12  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac (gcc_gxx_include_dir): Use $(libsubdir_to_prefix).
        (gcc_tooldir): Likewise.
        * configure: Regenerate.
        * Makefile.in (libsubdir_to_prefix): New variable, based on the
        old configure.ac gcc_tooldir setting.
        (prefix_to_exec_prefix): New variable.
        (DRIVER_DEFINES): Use $(libsubdir_to_prefix)$(prefix_to_exec_prefix)
        rather than $(unlibsubdir)/../ to derive TOOLDIR_BASE_PREFIX.

2007-05-14  Janis Johnson  <janis187@us.ibm.com>

        * c-typeck.c (build_binary_op): Return early for error.

2007-05-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (record_estimate): Use GGC_NEW to allocate
        struct nb_iter_bound.
        (free_numbers_of_iterations_estimates_loop): Use ggc_free.
        * gengtype.c (open_base_files): Add cfhloop.h to the list of includes.
        * cfgloopmanip.c (place_new_loop): Vector larray is gc-allocated.
        * tree-scalar-evolution.c: Include gt-tree-scalar-evolution.h.
        (struct scev_info_str, scalar_evolution_info): Add GTY markers.
        (new_scev_info_str): Use GGC_NEW to allocate struct scev_info_str.
        (del_scev_info): Use ggc_free.
        (scev_initialize): Allocate scalar_evolution_info in gc memory.
        * loop-init.c: Include ggc.h.
        (loop_optimizer_init): Use GGC_CNEW to allocate struct loops.
        (loop_optimizer_finalize): Use ggc_free.
        * tree-ssa-loop.c (pass_tree_unswitch, pass_vectorize,
        pass_linear_transfom, pass_empty_loop, pass_complete_unroll,
        pass_iv_optimize): Add TODO_ggc_collect.
        * function.h (struct function): Remove skip marker from x_current_loops.
        * cfgloop.c: Include ggc.h.
        (flow_loops_free, flow_loop_free): Free the loop descriptions in gc
        memory.
        (establish_preds): Vector superloops is gc allocated.
        (alloc_loop): Allocate loop using GGC_CNEW.  Allocate head of
        loop->exits list.
        (flow_loops_find): Vector larray is gc allocated.
        (loop_exit_free): Use ggc_free.
        (rescan_loop_exit): Use GGC_NEW to allocate struct loop_exit.  Reflect
        that head of exits list is now not a part of struct loop.
        (record_loop_exits): Allocate exits table in gc memory.
        (get_loop_exit_edges, verify_loop_structure, single_exit): Reflect that
        head of exits list is now not a part of struct loop.
        * cfgloop.h (struct lpt_decision, struct nb_iter_bound,
        struct loop_exit): Add GTY marker.
        (struct loop): Add GTY marker.  Make superloops vector gc allocated.
        Add skip marker to aux field.  Make head of exits list a separate
        object.
        (struct loops): Add GTY marker.  Make larray vector gc allocated.
        Add param marker to exits table.
        (get_loops): Type changed.
        * Makefile.in (tree-scalar-evolution.o): Add gt-tree-scalar-evolution.h
        dependency.
        (cfgloop.o, loop-init.o): Add ggc.h dependency.
        (GTFILES): Add cfgloop.h and tree-scalar-evolution.c.
        * basic-block.h (struct basic_block_def): Remove skip marker from
        loop_father field.

2007-05-14  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (expand_builtin_mathfn): Use EXPAND_NORMAL instead
        of 0 in the call to expand_expr().
        (expand_builtin_mathfn_3): Ditto.
        (expand_builtin_interclass_mathfn): Ditto.
        (expand_builtin_cexpi): Ditto.
        (expand_builtin_int_roundingfn): Ditto.
        (expand_builtin_int_roundingfn_2): Ditto.
        (expand_builtin_pow): Ditto.
        (expand_builtin_powi): Ditto.
        (expand_builtin_bswap): Ditto.
        (expand_builtin_unop): Ditto.
        (expand_builtin_fabs): Ditto.
        (get_builtin_sync_mem): Use NULL_RTX instead of NULL in
        the call to expand_expr().
        (expand_builtin_sync_operation): Ditto.
        (expand_builtin_compare_and_swap): Ditto.
        (expand_builtin_lock_test_and_set): Ditto.
        * except.c (expand_builtin_eh_return_data_regno): Use EXPAND_NORMAL
        instead of 0 in the call to expand_expr().
        (expand_builtin_extract_return_addr): Ditto.
        (expand_builtin_eh_return): Ditto.
        (expand_eh_return): Ditto.
        * explow.c (expr_size): Ditto.
        * expr.c (optimize_bitfield_assignment_op): Ditto.
        (expand_assignement): Ditto.
        (store_expr): Ditto.
        (store_field): Ditto.
        (expand_expr_addr_expr_1): Use NULL_RTX instead of NULL in
        the call to expand_expr().
        (expand_expr_real_1) [COMPLEX_CST]: Use EXPAND_NORMAL instead of 0
        in the call to expand_expr().
        [CONSTRUCTOR, PLUS_EXPR, MINUS_EXPR, NEGATE_EXPR, ABS_EXPR,
        BIT_NOT_EXPR, LSHIFT_EXPR, LT_EXPR, TRUTH_NOT_EXPR]: Ditto.
        [VEC_UNPACK_HI_EXPR, VEC_UNPACK_LO]: Use expand_normal() instead
        of expand_expr().
        * optabs.c (expand_vec_shift_expr): Ditto.
        (expand_vec_cond_expr): Ditto.
        (vector_compare_rtx): Use EXPAND_STACK_PARM instead of 1 in the
        call to expand_expr().
        * stmt.c (expand_return): Use EXPAND_NORMAL instead of 0
        in the call to expand_expr().

2007-05-14  Dave Korn  <dave.korn@artimi.com>

        * genautomata.c (gen_regexp_el):  Allocate correct size for regexp.

2007-05-14  Rafael Avila de Espindola  <espindola@google.com>

        * c-common.c (warnings_for_convert_and_check): Use unsigned_type_for
        instead of c_common_unsigned_type.
        (c_common_unsigned_type): Remove.
        (shorten_compare): Use c_common_signed_or_unsigned_type instead of
        c_common_unsigned_type.
        (c_common_nodes_and_builtins): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * c-common.h (c_common_unsigned_type): Remove.
        * c-decl.c (grokdeclarator): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * c-format.c (check_format_types): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * c-objc-common.h (LANG_HOOKS_UNSIGNED_TYPE): Remove.
        * c-typeck.c (convert_for_assignment): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * convert.c (convert_to_integer): Use unsigned_type_for instead of
        lang_hooks.types.unsigned_type.
        * expmed.c (make_tree): Use unsigned_type_for instead of
        lang_hooks.types.unsigned_type.
        * fold-const.c (fold_negate_expr): Use unsigned_type_for instead of
        lang_hooks.types.unsigned_type.
        (build_range_check): Likewise.
        (fold_unary): Likewise.
        (fold_binary): Likewise.
        (fold_ternary): Likewise.
        * langhooks-def.h (LANG_HOOKS_UNSIGNED_TYPE): Remove.
        * langhooks.h (lang_hooks_for_types): Remove unsigned_type.
        * tree.c (get_unsigned_type): New.
        (unsigned_type_for): Use get_unsigned_type instead of
        lang_hooks.types.unsigned_type.

2007-05-14  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k-protos.h: Rename m68k_interrupt_function_p
        to m68k_get_function_kind.  Update its prototype.
        * config/m68k/m68k.c (m68k_attribute_table): Add an entry for
        interrupt_thread.
        (m68k_interrupt_function_p): Return enum m68k_function_type
        instead of bool.  Rename to m68k_get_function_kind.
        (m68k_handle_fndecl_attribute): Reject interrupt_thread if the
        target is not fido.
        (m68k_compute_frame_layout): Don't mark any register for save
        if an interrupt_thread attribute is specified.
        (m68k_hard_regno_rename_ok): Update a use of
        m68k_interrupt_function_p.
        * config/m68k/m68k.h (EPILOGUE_USES): Update a use of
        m68k_interrupt_function_p.
        (m68k_function_type): New.
        * config/m68k/m68k.md (*return): Output a 'sleep' instruction
        for a function with an interrupt_thread attribute.
        * doc/extend.texi: Document the interrupt_thread attribute.

2007-05-13  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/31911
        * tree-ssa-pre.c (phi_translate): Make sure to cache results even
        if they didn't change the expression.

2007-05-13  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-scalar-evolution.c (resolve_mixers): Exported.
        * tree-scalar-evolution.h (resolve_mixers): Declare.
        * tree-data-ref.c (object_analysis, ptr_decl_may_alias_p,
        ptr_ptr_may_alias_p, may_alias_p, record_ptr_differ_p,
        record_record_differ_p, record_array_differ_p, array_ptr_differ_p,
        base_object_differ_p, base_addr_differ_p, analyze_array_indexes,
        init_array_ref, init_pointer_ref, analyze_indirect_ref,
        strip_conversion, analyze_offset_expr, address_analysis,
        object_analysis, analyze_offset): Removed.
        (dr_analyze_innermost, dr_analyze_indices, dr_analyze_alias,
        split_constant_offset, canonicalize_base_object_address,
        object_address_invariant_in_loop_p, disjoint_objects_p,
        dr_may_alias_p, dr_address_invariant_p): New functions.
        (create_data_ref): Use dr_analyze_innermost, dr_analyze_indices
        and dr_analyze_alias.
        (initialize_data_dependence_relation): Use dr_may_alias_p
        and object_address_invariant_in_loop_p.
        (compute_self_dependence): Handle the case when DDR_ARE_DEPENDENT (ddr)
        is chrec_dont_know.
        (find_data_references_in_stmt): Restrict the analysis of data references
        to the given loop nest.
        (find_data_references_in_loop): Made static.  Pass loop nest to
        find_data_references_in_stmt.
        (compute_data_dependences_for_loop): Use DR_VOPS.
        (free_data_ref): Free DR_VOPS.
        * tree-data-ref.h (struct first_location_in_loop): Replaced by ...
        (struct innermost_loop_behavior): ... new.
        (struct base_object_info): Replaced by ...
        (struct indices): ... new.
        (struct dr_alias): New.
        (enum data_ref_type): Removed.
        (struct data_reference): Consist of struct innermost_loop_behavior,
        struct indices and struct dr_alias.
        (DR_SET_ACCESS_FNS, DR_FREE_ACCESS_FNS): Removed.
        (DR_MEMTAG): Renamed to ...
        (DR_SYMBOL_TAG): ... this.
        (find_data_references_in_loop): Declaration removed.
        * tree-vect-analyze.c (vect_compute_data_ref_alignment): Use DR_INIT
        instead of DR_OFFSET_MISALIGNMENT.  DR_ALIGNED_TO is never NULL.
        (vect_analyze_data_refs): Use DR_SYMBOL_TAG instead of DR_MEMTAG.
        * tree-vect-transform.c (vect_create_data_ref_ptr): Ditto.

2007-05-13  Revital Eres  <eres@il.ibm.com>

        * tree-ssa-dse.c (get_use_of_stmt_lhs): New function
        which walks virtual def-use chains to find redundant stores.
        (dse_optimize_stmt): Call it.

2007-05-12  Steven Bosscher  <steven@gcc.gnu.org>

        * gcse.c (gcse_main): Do jump bypassing in CPROP2.
        * passes.c (init_optimization_passes): Move pass_jump_bypass
        after loop2.

        * basic-block.h (bb_has_eh_pred): Fix style issue.

2007-05-12  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/31848
        * loop-invariant.c (move_invariant_reg): If we move an insn
        with a REG_EQUAL note, and that insn is not always executed,
        remove the REG_EQUAL note.

2007-05-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31797
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Do not
        propagate into a stmt that has volatile ops.

2007-05-12  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac (gcc_gxx_include_dir): Use $(libsubdir_to_prefix).
        (gcc_tooldir): Likewise.
        * configure: Regenerate.
        * Makefile.in (libsubdir_to_prefix): New variable, based on the
        old configure.ac gcc_tooldir setting.
        (prefix_to_exec_prefix): New variable.
        (DRIVER_DEFINES): Use $(libsubdir_to_prefix)$(prefix_to_exec_prefix)
        rather than $(unlibsubdir)/../ to derive TOOLDIR_BASE_PREFIX.

2007-05-11  Silvius Rus  <rus@google.com>

        * Makefile.in (OBJS-common): Add tree-ssa-alias-warnings.o.
        * c-common.c (strict_aliasing_warning): Modify -Wstrict-aliasing logic.
        * c-common.h (strict_aliasing_warning): Change return type.
        * c-opts.c (c_common_handle_option): Add call to set_Wstrict_aliasing.
        * c-typeck.c (build_indirect_ref): Add call to strict_aliasing_warning.
        (build_c_cast): Condition call to strict_aliasing_warning.
        * doc/invoke.texi: Update description of -Wstrict-aliasing[=n].
        * flags.h (set_Wstrict_aliasing): Declare.
        * opts.c (set_Wstrict_alising): Define, add call to.
        * tree-flow.h (strict_aliasing_warning_backend): Declare.
        * tree-ssa-alias-warnings.c: New file.
        * tree-ssa-alias.c (compute_may_aliases): Add call to
        strict_aliasing_warning_backend.

2007-05-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-loop-linear.c (gather_interchange_stats, try_interchange_loops):
        Use loop_depth and loop_outer accessor functions.
        * tree-ssa-loop-im.c (outermost_invariant_loop, set_level,
        determine_invariantness_stmt, move_computations_stmt): Ditto.
        * cfgloopmanip.c (fix_bb_placement, fix_loop_placement, remove_path,
        add_loop, loopify, unloop, fix_loop_structure): Ditto.
        * tree-ssa-loop-manip.c (find_uses_to_rename_use): Ditto.
        * tree-scalar-evolution.c (interpret_loop_phi,
        compute_scalar_evolution_in_loop, analyze_scalar_evolution_in_loop,
        instantiate_parameters_1, scev_const_prop): Ditto.
        * cfghooks.c (make_forwarder_block): Ditto.
        * cfgloopanal.c (mark_irreducible_loops, mark_loop_exit_edges): Ditto.
        * modulo-sched.c (loop_canon_p): Ditto.
        * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg,
        slpeel_can_duplicate_loop_p): Ditto.
        * lambda-code.c (invariant_in_loop_and_outer_loops): Ditto.
        * tree-cfg.c (tree_duplicate_sese_region): Ditto.
        * cfgloop.c (flow_loop_dump, flow_loop_nodes_find, rescan_loop_exit,
        cancel_loop, verify_loop_structure): Ditto.
        (flow_loop_nested_p, superloop_at_depth, flow_loop_free,
        add_bb_to_loop, remove_bb_from_loops, find_common_loop): Use the
        superloops vector instead of "pred" array.
        (establish_preds): Take father loop as an argument.  Initialize the
        superloops vector.
        (flow_loop_tree_node_add): Pass father loop to establish_preds.  Do not
        initialize loop->outer.
        (flow_loop_tree_node_remove): Truncate the superloops vector.
        * cfgloop.h (struct loop): Removed field "outer", fields "depth" and
        "pred" merged to "superloops" vector.
        (loop_depth, loop_outer): New.
        (fel_init): Use loop_outer.

2007-05-11  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c: Include gt-cgraphunit.h
        (static_ctors, static_dtors): New static vars.
        (record_cdtor_fn, build_cdtor, cgraph_build_cdtor_fns): New functions,
        based on implementation in c-common.c
        (cgraph_finalize_function): Call record_cdtor_fn.
        (cgraph_optimize): Call cgraph_build_cdtor_fns.
        * decl.c (finish_function): Do not call c_record_cdtor_fn.
        (c_write_global_declarations): Do not call c_build_cdtor_fns.
        * c-common.c (static_ctors, static_dtors, c_record_cdtor_fn,
        build_cdtor, c_build_cdtor_fns): Remove.
        * c-common.h (static_ctors, static_dtors, c_record_cdtor_fn,
        c_build_cdtor_fns): Remove prototype.

2007-05-11  Paolo Carlini  <pcarlini@suse.de>

        PR other/31852
        * builtin-types.def: Add BT_FN_PTR_CONST_PTR_INT_SIZE.
        * builtins.def: Add BUILT_IN_MEMCHR, use the latter.
        * builtins.c (fold_builtin_memchr): New.
        (expand_builtin_memchr): Call the latter.
        (expand_builtin, fold_builtin_3): Deal with BUILT_IN_MEMCHR.
        * doc/extend.texi ([Other built-in functions provided by GCC]):
        Document memchr.

2007-05-11  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (GPR0_REGNUM, FPR0_REGNUM, FPR2_REGNUM,
        PFPO_CONVERT, PFPO_OP_TYPE_SF, PFPO_OP_TYPE_DF, PFPO_OP_TYPE_TF,
        PFPO_OP_TYPE_SD, PFPO_OP_TYPE_DD, PFPO_OP_TYPE_TD, PFPO_OP0_TYPE_SHIFT,
        PFPO_OP1_TYPE_SHIFT): Constants added.
        (DFP_ALL): Mode macro defined.
        ("*trunc<BFP:mode><DFP_ALL:mode>2", "*trunc<DFP_ALL:mode><BFP:mode>2",
        "*extend<BFP:mode><DFP_ALL:mode>2", "*extend<DFP_ALL:mode><BFP:mode>2"):
        Insn definitions added.
        ("trunc<BFP:mode><DFP_ALL:mode>2", "trunc<DFP_ALL:mode><BFP:mode>2",
        "extend<BFP:mode><DFP_ALL:mode>2", "extend<DFP_ALL:mode><BFP:mode>2"):
        Expanders added.

2007-05-10  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31885
        * tree-chrec.c (chrec_contains_undetermined): Do not consider NULL_TREE
        to be undetermined.
        (automatically_generated_chrec_p): Return false for NULL.

2007-05-08  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (MOVE_RATIO): Define.

2007-05-10  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (sparc-wrs-vxworks): New target.
        * config/sparc/vxworks.h, config/sparc/t-vxworks: New files.
        * config/sparc/sparc-protos.h (sparc_emit_call_insn): Declare.
        * config/sparc/sparc.h: Include vxworks-dummy.h.
        (PRINT_OPERAND_ADDRESS): Extend SYMBOL_REF handling to
        include LABEL_REFs too.
        * config/sparc/sparc.c (sparc_expand_move): Don't assume that
        _GLOBAL_OFFSET_TABLE_ - label_ref is a link-time constant on
        VxWorks.
        (legitimize_pic_address): Handle LABEL_REFs like SYMBOL_REFs
        on VxWorks.
        (load_pic_register): Use gen_vxworks_load_got for VxWorks.
        (sparc_emit_call_insn): New function.
        (sparc_function_ok_for_sibcall): Restrict sibcalls to locally-binding
        functions when generating VxWorks PIC.
        * config/sparc/sparc.md (vxworks_load_got): New pattern.
        (call, call_value): Use sparc_emit_call_insn instead of
        emit_call_insn.

2007-05-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_output_literal): Don't use #if.

2007-05-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_output_literal): Mask out high bits
        for floating-point values if HOST_BITS_PER_LONG > 32.  Use split_double
        instead of operand_subword.

2007-05-08  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (LOCAL_ALIGNMENT): Define.
        * config/bfin/bfin.c (bfin_local_alignment): New function.
        * config/bfin/bfin-protos.h (bfin_local_alignment): Declare it.

2007-05-08  Chao-ying Fu  <fu@mips.com>

        * doc/md.texi (msub@var{m}@var{n}4, usub@var{m}@var{n}4): Document.
        * optabs.h (OTI_smsub_widen, OTI_umsub_widen): New optab_indexes.
        (smsub_widen_optab, umsub_widen_optab): Define.
        * optabs.c (init_optabs): Initialize smsub_widen_optab and
        umsub_widen_optab.
        * genopinit.c (optabs): Fill in smsub_widen_optab and
        umsub_widen_optab.
        * expr.c (expand_expr_real_1): Try to use smsub_widen_optab
        and umsub_widen_optab to implement multiply-subtract sequences.
        * config/mips/mips.md (*msac<u>_di): Rename to...
        (<u>msubsidi4): ...this.  Extend condition to include
        GENERATE_MADD_MSUB and TARGET_DSPR2.  Change the constraint
        of operand 0 to "ka" and use the three-operand form of msub<u>
        for TARGET_DSPR2.
        * config/mips/mips-dspr2.md (mips_msub, mips_msubu): Convert
        to define_expands.

2007-05-08  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/28011
        * reload.c (push_reload): Set dont_share if IN appears in OUT
        also when IN is a PLUS rtx.
        (reg_overlap_mentioned_for_reload_p): Return true if X and IN
        are same PLUS rtx.

2007-05-08  Kazu Hirata  <kazu@codesourcery.com>

        * emit-rtl.c (unshare_all_rtl_1): Don't copy DECL_RTL.  Don't
        call unshare_all_decls.
        (unshare_all_rtl): Adjust the call to unshare_all_rtl_1.
        (unshare_all_decls): Remove.

2007-05-08  Simon Martin  <simartin@users.sourceforge.net>

        PR 31847
        * tree-dump.c (dump_options): Don't use TDF_DIAGNOSTIC in "*-all" tree
        dumps.

2007-05-08  Sandra Loosemore  <sandra@codesourcery.com>
            Nigel Stephens  <nigel@mips.com>

        * config/mips/mips.h (MAX_FPRS_PER_FMT): Renamed from FP_INC.
        Update comments and all uses.
        (MIN_FPRS_PER_FMT): Define.
        * config/mips/mips.c (function_arg): Fix to correctly handle
        the -mips32r2 -mfp64 -mabi=32 case.
        (override_options): Enable use of odd-numbered registers for
        SFmode values on MIPS32.
        (mips_save_reg_p): Save whole floating-point register pair if
        either half is used.
        (compute_frame_size): Fix comment.

2007-05-08  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin-protos.h (bfin_expand_epilogue): Add a third
        argument of type bool.
        * config/bfin/bfin.c (add_to_reg): Add epilogue_p as a fourth
        argument. Safely select temporary P register according to it.
        (do_link): Change call site of add_to_reg accordingly.
        (do_unlink): Add epilogue_p as a fourth argument and pass it
        to add_to_reg.
        (expand_interrupt_handler_epilogue): Change call of do_unlink
        accordingly.
        (bfin_expand_prologue): Add a third argument sibcall_p.
        * config/bfin/bfin.md (epilogue): Change call of
        bfin_expand_epilogue accordingly.
        (sibcall_epilogue): Likewise.
        (eh_return_internal): Likewise.

        * config/bfin/bfin-protos.h (enum bfin_cpu): Add
        BFIN_CPU_BF534, BFIN_CPU_BF536 and BFIN_CPU_BF561.
        * config/bfin/bfin.c (bfin_handle_option): Handle
        -mcpu=bf534, -mcpu=bf536 and -mcpu=bf561.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS):
        Support bf534, bf536 and bf561.
        * doc/invoke.texi (Blackfin Options): Document -mcpu and -msim.

2007-05-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31854
        * config/i386/i386.c (ix86_function_regparm): Process local
        functions only when TREE_CODE (decl) equals FUNCTION_DECL.

2007-05-07  Mike Stump  <mrs@apple.com>

        * doc/invoke.texi (Warning Options): Document that -Wempty-body
        also checks for and while statements in C++.

2007-05-07  Nathan Froyd  <froydnj@codesourcery.com>

        * gcc.c (at_file_supplied): New variable.
        (main): Set it if we expanded argv.
        (do_spec_1): Pass an @-file to the linker if we were called with
        an @-file argument and HAVE_GNU_LD.
        * collect2.c (at_file_supplied): New variable.
        (response_file): New variable.
        (collect_exit): Unlink response_file if necessary.
        (handler): Likewise.
        (do_wait): Likewise.
        (main): Set at_file_supplied if we expanded argv.
        (collect_execute): Pass an @-file to subprocesses if we were called
        with an @-file argument.
        * configure.ac: Add define for HAVE_GNU_LD.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-05-07  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/m32c/muldiv.md (mulhisi3_c): Limit the mode of the 2nd
        operand to HI mode.
        (mulsi3): New.
        (divsi3): New.
        (udivsi3): New.

2007-05-07  Jayant Sonar  <jayants@kpitcummins.com>

        * config/m32c/m32c.c (SYMBOL_FLAG_FUNCVEC_FUNCTION): Define.
        (TARGET_ENCODE_SECTION_INFO): Re-define.
        (m32c_encode_section_info): New
        (function_vector_handler): New
        (current_function_special_page_vector): New
        (m32c_special_page_vector_p): New.
        * config/m32c/m32c-protos.h (m32c_special_page_vector_p):
        Prototype.
        * config/m32c/jump.md: Added instruction JSRS for functions
        with attribute "function_vector".
        * doc/extend.texi (function_vector): Added description
        for M16C, M32C targets.

2007-05-07  DJ Delorie  <dj@redhat.com>

        PR 31794
        * config/m32c/shift.md (ashlpsi3_i, ashrpsi3_i, ashlpsi3,
        ashrpsi3, lshrpsi3): Update shift count constraint.

2007-05-07  Danny Smith  <dannysmith@users.sourceforge.net>
            Nathan Froyd  <froydnj@codesourcery.com>

        PR 22133
        * c-incpath.c (add_path): Strip trailing path separators.

2007-05-07  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Reset cfg_altered.
        Free dominance info before purging EH edges.
        (eliminate_degenerate_phis): Likewise.
        (propagate_rhs_into_lhs): Set cfg_altered to true instead of 1.

2007-05-07  Jan Hubicka  <jh@suse.cz>

        * gimplify.c (gimplify_expr): Do not crash when folding
        (void *)(int)&a + 4.

2007-05-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR driver/31694
        * c-opts.c (lang_fortran): Make it non static.
        * c-common.h (lang_fortran): New prototype.
        * c-cppbuiltin.c (c_cpp_builtins): Create a __GFORTRAN__ if the
        -lang-fortran option was passed by the driver.

2007-05-06  Eric Botcazou  <ebotcazou@adacore.com>

        * timevar.c (timevar_print): Test ENABLE_ASSERT_CHECKING instead
        of ASSERT_CHECKING.  Tweak message.

2007-05-06  Revital Eres  <eres@il.ibm.com>

        PR 30957
        * loop-unroll.c (insert_var_expansion_initialization):
        Initialize the expansions with -zero instead of +zero.

2007-05-05  Aurelien Jarno  <aurelien@aurel32.net>

        * config/pa/pa.md: Split tgd_load, tld_load and tie_load
        into pic and non-pic versions. Mark r19 as used for
        tgd_load_pic, tld_load_pic and tie_load_pic. Mark r27 as used
        for tgd_load, tld_load and tie_load .
        * config/pa/pa.c (legitimize_tls_address): Emit pic or non-pic
        version of tgd_load, tld_load and tie_load depending on the
        value of flag_pic.

2007-05-04  Ulrich Drepper  <drepper@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * crtstuff.c (HIDDEN_DTOR_LIST_END): New macro.
        (__do_global_dtors_aux): Use more paranoid loop to run
        destructors if HIDDEN_DTOR_LIST_END.
        (__DTOR_END__): Export as a hidden symbol when HIDDEN_DTOR_LIST_END.

2007-05-04  Jakub Jelinek  <jakub@redhat.com>

        * varasm.c (align_variable): Don't increase alignment for
        DECL_THREAD_LOCAL_P variables above BITS_PER_WORD through
        DATA_ALIGNMENT or CONSTANT_ALIGNMENT.

2007-05-04  Josh Conner  <jconner@apple.com>

        * basic-block.h (cdi_direction): Assign values to all enumeration
        constants.
        (dom_computed): Remove.
        (dom_info_state): New.
        (set_dom_info_availability): New.
        * tree-ssa-loop-im.c (determine_invariantness): Initialize
        walk_data.dom_direction.
        * cfghooks.c (delete_basic_block): Use dom_info_available_p()
        instead of dom_computed[].
        (split_edge): Likewise.
        (create_basic_block): Likewise.
        (merge_blocks): Likewise.
        * ifcvt.c (find_if_header): Likewise.
        * tree-cfgcleanup.c (cleanup_tree_cfg): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * tree-ssa.c (verify_ssa): Likewise.
        * tree-cfg.c (tree_verify_flow_info): Likewise.
        (remove_edge_and_dominated_blocks): Likewise.
        * dominance.c (dom_computed): Make static.
        (calc_dfs_tree_nonrec): Change third param to a bool.
        (calc_dfs_tree): Change second param to a bool.
        (calc_idioms): Change second param to a bool.  Use
        dom_convert_dir_to_idx.
        (init_dom_info): Validate dir before using.
        (dom_convert_dir_to_idx): New.
        (calculate_dominance_info): Use dom_convert_dir_to_idx.  New
        variable 'reverse' used for calling calc_dfs_tree and calc_idoms.
        (free_dominance_info): Use dom_convert_dir_to_idx.
        (get_immediate_dominator): Likewise.
        (set_immediate_dominator): Likewise.
        (get_dominated_by): Likewise.
        (redirect_immediate_dominators): Likewise.
        (nearest_common_denominator): Likewise.
        (dominated_by_p): Likewise.
        (bb_dom_dfs_in): Likewise.
        (bb_dom_dfs_out): Likewise.
        (recount_dominator): Likewise.
        (iterate_fix_dominators): Likewise.
        (add_to_dominance_info): Likewise.
        (delete_from_dominance_info): Likewise.
        (first_dom_son): Likewise.
        (next_dom_son): Likewise.
        (dom_info_available_p): Likewise.
        (dom_info_state): New.
        (set_dom_info_availability): New.

2007-05-04  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("fix_trunc<mode>di2", "fix_trunc<mode>si2"):
        Expander removed.
        ("fix_trunc<DSF:mode><GPR:mode>2"): Expander added.

2007-05-04  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.md (adddi3, adddi_carry): Delete.
        (subdi3, subdi_carry): Delete.

2007-05-04  Jan Hubicka  <jh@suse.cz>
            Richard Guenther  <rguenther@suse.de>

        * opts.c (decode_options): Do not fiddle with inlining
        parameters in case of optimizing for size.
        * ipa-inline.c (cgraph_decide_recursive_inlining): When optimizing
        for size do nothing.
        (cgraph_decide_inlining_of_small_function): When optimizing for
        size never inline functions increasing caller size.
        (cgraph_early_inlining): Inline for size when optimizing for size.

2007-04-18  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (<optab>di3): Now a define_expand which expands
        logical operations piecewise.
        (<optab>di_zesidi_di, <optab>di_sesidi_di, negdi2, one_cmpldi2,
        zero_extendsidi2, subdi_di_zesidi, subdi_zesidi_di, subdi_di_sesidi,
        subdi_sesidi_di): Delete.
        (add_with_carry): Produce carry in CC instead of a DREG to shorten
        the generated sequence.  Allow three-reg add in constraints.  Rewrite
        the rtl expression for carry to avoid zero_extend of a constant.
        (sub_with_carry): New pattern.
        (adddi3, subdi3): Change into define_expand.  For subtract, generate a
        different sequence not involving jumps.
        (notbi): Now a named pattern.

2007-05-04  Bradley Lucier  <lucier@math.purdue.edu>

        * doc/invoke.texi (i386 and x86-64 Options) [-mpc32, -mpc64, -mpc80]:
        Add the note about a significant loss of accuracy of some
        mathematical routines when these options are used.

2007-05-04  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (rtx_vec_t): New typedef.
        (contributes_to_priority_p): Extract piece of priority () into new
        static function.
        (priority): Use the function.  Add assertion.
        (rank_for_schedule, set_priorities): Add assertion to check that
        insn's priority is initialized.
        (clear_priorities, calc_priorities): Change signature.  Make it update
        all relevant insns.  Update all callers ('add_to_speculative_block ()'
        and 'create_block_check_twin ()').
        * sched-int.h (struct haifa_insn_data): Remove field 'priority_known'.
        Add new field 'priority_status'.
        (INSN_PRIORITY_STATUS): New macro.
        (INSN_PRIORITY_KNOWN): Change to use INSN_PRIORITY_STATUS.

2007-05-04  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * sched-ebb.c (debug_ebb_dependencies): New static function.
        (init_ready_list): Use it.

        * sched-rgn.c (debug_dependencies): Split into 'debug_dependencies ()'
        with changed signature and 'debug_rgn_dependencies ()'.
        (debug_rgn_dependencies): New static function.
        (init_ready_list): Use it.

        * sched-int.h (debug_dependencies): Declare.

2007-05-04  Andreas Krebbel  <krebbel1@de.ibm.com>

        * libgcc-std.ver (__ffssi2): Added to GCC_4.3.0 section.

2007-05-04  Dirk Mueller  <dmueller@suse.de>

        * c.opt(Wmain,ffreestanding): Enable for C++,ObjC++.

2007-05-03  Jan Hubicka  <jh@suse.cz>

        * fold-const.c (fold_unary): Convert (T1)(X op Y) into ((T1)X op (T1)Y),
        for pointer type in more cases than before.

        * gimplify.c (gimplify_expr): Fold (void *)&a + 4.

        * tree-object-size.c (plus_expr_object_size): When operand size is
        unknown, return unknown.

2007-05-03  Dirk Mueller  <dmueller@suse.de>

        * doc/invoke.texi (-m386,-m486,-mpentium,-mpentiumpro): Remove.

        * config/i386/i386.h (CC1_CPU_SPEC): Remove handling for deprecated
        options.

        * config/i386/i386.opt (m386,m486,mpentium,mpentiumpro): Remove.

2007-05-03  Janis Johnson  <janis187@us.ibm.com>

        * doc/sourcebuild.texi (Test Directives) Clarify dg-excess-errors.

2007-05-03  Joseph Myers  <joseph@codesourcery.com>

        * config/soft-fp/double.h, config/soft-fp/extended.h,
        config/soft-fp/floatundidf.c, config/soft-fp/floatundisf.c,
        config/soft-fp/floatunsidf.c, config/soft-fp/floatunsisf.c,
        config/soft-fp/op-2.h, config/soft-fp/op-4.h,
        config/soft-fp/op-common.h, config/soft-fp/quad.h: Update from
        glibc CVS.

2007-05-03  Ian Lance Taylor  <iant@google.com>

        * config/rs6000/rs6000.c (rs6000_override_options): Don't set
        MASK_PPC_GFXOPT for 8540 or 8548.

2007-05-03  Uros Bizjak  <ubizjak@gmail.com>

        * tree-vect-transform.c (vect_update_inits_of_drs): Use
        vect_print_dump_info() to output debug information.

2007-05-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31768
        * config/i386/i386.c (print_operand) ['z']: Output 'w' for
        operands of size 2 when operand is not MEM_P.

2007-05-03  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30565
        * lambda-code.c (perfect_nestify): Fix updating of dominators.

2007-05-03  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (addpdi3, us_truncpdisi2): New patterns.
        (umulsi3_highpart): Use them.
        * config/bfin/lib1funcs.asm (__umulsi3_highpart): Use unsigned move
        for final accumulator to D regisster tranfser.

2007-05-03  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/31699
        * tree-vect-analyze.c (vect_update_misalignment_for_peel): Remove wrong
        code.
        (vect_enhance_data_refs_alignment): Compute peel amount using
        TYPE_VECTOR_SUBPARTS instead of vf.
        * tree-vect-transform.c (vect_gen_niters_for_prolog_loop): Likewise.

2007-05-02  Brooks Moses  <brooks.moses@codesourcery.com>

        PR bootstrap/31776
        * system.h: Remove inclusion of double-int.h
        * tree.h: Include double-int.h
        * gengtype.c: Likewise
        * cfgloop.h: Likewise
        * Makefile.in: Adjust dependencies on double-int.h

2007-05-02  Eric Christopher  <echristo@apple.com>

        * config/darwin.h (TARGET_OPTION_TRANSLATE_TABLE): Translate
        -shared to -Zdynamiclib.

2007-05-02  Seongbae Park  <seongbae.park@gmail.com>

        PR c++/31663
        * c-common.c (strip_pointer_or_array_types): New function.
        * c-common.h (strip_pointer_or_array_types): New function declaration.

2007-05-03  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31771
        * tree-cfg.c (move_block_to_fn): Assign bb to the correct index.

2007-05-02  Paul Brook  <paul@codesourcery.com>

        * config/arm/bpabi.S (aeabi_lcmp): Fix result on overflow.

2007-05-02  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/29715
        * fold-const.c (fold_comparision): Remove the "foo++ == CONST"
        transformation.

2007-05-02  Nick Clifton  <nickc@redhat.com>

        * config/frv/predicates.md (symbolic_operand): Accept CONSTs.

2007-05-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31146
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): New
        argument, single_use_p.  If we have a single use that is
        a conversion to the definition rhs type, propagate that rhs.
        (forward_propagate_addr_expr): Pass single_use_p argument
        to forward_propagate_addr_expr_1.

2007-05-01  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_expand_sse_comi): Remove unused
        variable.

2007-05-01  Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>

        * doc/invoke.texi: Fix typo, 'AMD Family 10h core' instead of
        'AMD Family 10 core'.

2007-05-01  Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>

        * config/i386/i386.c (override_options): Accept k8-sse3, opteron-sse3
        and athlon64-sse3 as improved versions of k8, opteron and athlon64
        with SSE3 instruction set support.
        * doc/invoke.texi: Likewise.

2007-05-01  Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>

        * config/i386/i386.c (override_options): Tuning 32-byte loop
        alignment for amdfam10 architecture. Increasing the max loop
        alignment to 24 bytes.

2007-05-01  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/constraints.md: New.
        * config/m68k/m68k.h (REG_CLASS_FROM_LETTER,
        CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P,
        EXTRA_CONSTRAINT): Remove.
        * config/m68k/m68k.md: Include constraints.md.
        * expr.c (expand_expr_real_1): Copy DECL_RTL before using it.

2007-05-01  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31739
        * tree-vrp.c (vrp_val_is_max): New static function.
        (vrp_val_is_min): New static function.
        (set_value_range_to_value): Use TYPE_{MAX,MIN}_VALUE rather than
        copying the node.
        (set_value_range): Use vrp_val_is_{max,min}.
        (extract_range_from_assert): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (dump_value_range, vrp_meet): Likewise.
        (vrp_visit_phi_node): Likewise.
        * tree.c (build_distinct_type_copy): Revert change of 2007-04-27.

2007-05-01  Mark Mitchell  <mark@codesourcery.com>

        * config/i386/gmon-sol2.c (size_t): New type.
        (intptr_t): Likewise.
        (s_textsize): Declare as size_t.
        (sbrk): Declare.
        (monstartup): Use size_t for sizes.
        (_mcount): Save and restore registers.
        (internal_mcount): Pass 0 as the first argument to monstartup
        in 64-bit mode.
        (moncontrol): Convert pointer to appropriately sized integer
        before passing to profil.

2007-05-01  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/darwin-ldouble.c (__gcc_qunord): Define if
        __NO_FPRS__, not just if _SOFT_DOUBLE.
        * config/rs6000/libgcc-ppc-glibc.ver (__gcc_qunord): Likewise.
        * config/rs6000/rs6000.c (rs6000_init_libfuncs): Use __gcc_qunord
        also for E500 double.
        * config/rs6000/rs6000.md (buneq, bunge, bungt, bunle, bunlt,
        suneq, sunge, sungt, sunle, sunlt): Disable for (TARGET_HARD_FLOAT
        && !TARGET_FPRS).

2007-05-01  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-manip.c (ip_normal_pos): Check if last stmt
        is NULL.

2007-05-01  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/libgcc-ppc-glibc.ver (__gcc_qgt): Fix typo.

2007-05-01  Jan Hubicka  <jh@suse.cz>

        * tree-vectorize.c (vect_is_simple_use): gimple_min_invariant is
        invariant.

2007-05-01  Jan Hubicka  <jh@suse.cz>

        * tree.h (maybe_fold_offset_to_component_ref): Remove.
        (maybe_fold_offset_to_reference): Declare.
        * fold-const.c (fold_unary): Do not fold
        (type *)&A into &A->field_of_type_and_offset_0
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): When base type
        size is unknown, give up.
        (maybe_fold_offset_to_component_ref): Ignore firelds with unknown
        offsets.
        (maybe_fold_offset_to_reference): New.
        (maybe_fold_stmt_indirect): Use it.
        (fold_stmt_r): Fold (type *)&A+offset into A->field_if_type_and_offset.
        * gimplify.c (gimplify_conversion): Canonicalize conversions to
        field references.
        (gimplify_expr): Likewise for plus_expr.

2007-05-01  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Use
        bsi_after_labels.  Always insert statements before bsi.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Ditto.
        * predict.c (apply_return_prediction): Check for empty blocks.
        * cfgexpand.c (lab_rtx_for_bb): New variable.
        (label_rtx_for_bb): Do not create new tree labels.
        (expand_gimple_basic_block): Add labels recorded in lab_rtx_for_bb.
        (tree_expand_cfg): Initialize lab_rtx_for_bb.
        * tree-cfg.c (build_tree_cfg): Call cleanup_dead_labels after
        creating edges.
        (label_for_bb): Add field used.
        (update_eh_label, main_block_label): Mark the label used.
        (cleanup_dead_labels): Remove unused labels.

2007-05-01  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (set_value_range): Do not allocate equiv bitmap
        if it is not about to be set.
        (get_value_range): Do not pre-allocate equiv bitmap.
        (update_value_range): No need to clear equiv field.
        (add_equivalence): Change prototype to get bitmap pointer.
        Allocate bitmap here if it is not already.
        (extract_range_from_assert): Do not allocate bitmap here.
        Update callers to add_equivalence.
        (extract_range_from_ssa_name): Likewise.
        (get_vr_for_comparison): New static helper.
        (compare_name_with_value): Handle NULL equiv bitmap by
        peeling the first iteration of the comparison loop.
        Use get_vr_for_comparison.
        (compare_names): Handle NULL equiv bitmaps by using fake
        ones.  Use get_vr_for_comparison.

2007-04-30  Brooks Moses  <brooks.moses@codesourcery.com>

        * double-int.c (mpz_set_double_int): Moved from
        tree-ssa-loop-niter.c.
        (mpz_get_double_int): Likewise; also, add option to wrap
        out-of-range integers.
        * double-int.h: New prototypes for above.
        * tree.c (get_static_type_bounds): Moved from
        tree-ssa-loop-niter.c; now returns TYPE_MIN_VALUE and
        TYPE_MAX_VALUE if they exist..
        * tree.h: New prototype for above.
        * tree-ssa-loop-niter.c: Adjust mpz_to_double_int and
        get_type_bounds calls.
        (mpz_set_double_int): Move to double-int.c.
        (get_type_bounds): Move to tree.c, rename to
        get_static_type_bounds.
        (mpz_to_double_int): Move to double-int.c, rename to
        mpz_get_double_int.

2007-04-30  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (__umodsi3, __modsi3): Rearrange so that
        DIV0 exception can fall through to a normal return.

2007-04-30  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/22156
        Temporarily revert:
        2007-04-06  Andreas Tobler  <a.tobler@schweiz.org>
        * tree-sra.c (sra_build_elt_assignment): Initialize min/maxshift.
        2007-04-05  Alexandre Oliva  <aoliva@redhat.com>
        * tree-sra.c (try_instantiate_multiple_fields): Needlessly
        initialize align to silence bogus warning.
        2007-04-05  Alexandre Oliva  <aoliva@redhat.com>
        * tree-sra.c (struct sra_elt): Add in_bitfld_block.  Remove
        all_no_warning.
        (struct sra_walk_fns): Remove use_all parameter from use.
        (sra_hash_tree): Handle BIT_FIELD_REFs.
        (sra_elt_hash): Don't hash bitfld blocks.
        (sra_elt_eq): Skip them in parent compares as well.  Handle
        BIT_FIELD_REFs.
        (sra_walk_expr): Don't maintain or pass down use_all_p.
        (scan_use): Remove use_all parameter.
        (scalarize_use): Likewise.  Re-expand assignment to
        BIT_FIELD_REF of gimple_reg.  De-scalarize before input or
        output, and re-scalarize after output.  Don't mark anything
        for no warning.
        (scalarize_ldst): Adjust.
        (scalarize_walk_gimple_modify_statement): Likewise.
        (build_element_name_1): Handle BIT_FIELD_REFs.
        (instantiate_element): Don't warn for any element whose parent
        is used as a whole.
        (instantiate_missing_elements_1): Return the sra_elt.
        (canon_type_for_field): New.
        (try_instantiate_multiple_fields): New.
        (instantiate_missing_elemnts): Use them.
        (mark_no_warning): Removed.
        (generate_one_element_ref): Handle BIT_FIELD_REFs.
        (REPLDUP, sra_build_elt_assignment): New.
        (generate_copy_inout): Use them.
        (generate_element_copy): Likewise.  Handle bitfld differences.
        (generate_element_zero): Don't recurse for blocks.  Use
        sra_build_elt_assignment.
        (generate_one_element_int): Take elt instead of var.  Use
        sra_build_elt_assignment.
        (generate_element_init_1): Adjust.
        (scalarize_use, scalarize_copy): Use REPLDUP.
        (scalarize_ldst): Move assert before dereference.
        (dump_sra_elt_name): Handle BIT_FIELD_REFs.

2007-04-30  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C++/31721
        * tree.c (reconstruct_complex_type): Reconstruct a reference
        correctly.
        Also use the same mode for the pointer as the old pointer type.

2007-04-30  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * doc/trouble.texi (Interoperation): Remove note about Ultrix
        Fortran compiler.

2007-04-29  Zdenek Dvorak  <dvorakz@suse.cz>

        PR rtl-optimization/31676
        * df-scan.c (record_nonlocal_goto_receiver_defs): New function.
        (df_refs_record): Call it.

2007-04-29  Bernd Schmidt  <bernd.schmidt@analog.com>

        * rtl.def (SS_ABS): New code.
        * config/bfin/bfin.c (print_operand): New modifier 'v'.
        (enum bfin_builtins): Add BFIN_BUILTIN_SUM_2X16, BFIN_BUILTIN_ABS_1x32,
        BFIN_BUILTIN_ROUND_1x32, BFIN_BUILTIN_MULT_1x32x32,
        BFIN_BUILTIN_MULT_1x32x32NS, BFIN_BUILTIN_SSASHIFT_1x32.
        (bfin_init_builtins): Define them.
        (bdesc_1arg, bdesc_2arg): Add some of them here, ...
        (bfin_expand_builtin): ... and handle the others here.
        * config/bfin/bfin.md (ssabssi2, ssroundsi2, ssashiftsi3,
        flag_mul_macv2hi_parts_acconly_andcc0): New patterns.
        (ss_absv2hi2): Renamed from absv2hi; use ss_abs code.
        (ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3): Shift count
        operand is only HImode.

2007-04-29  Steven Bosscher  <steven@gcc.gnu.org>

        * regclass.c (scan_one_insn): Remove splitting of
        two address insns.

2007-04-28  Sandra Loosemore  <sandra@codesourcery.com>
            Nigel Stephens  <nigel@mips.com>

        * config/mips/mips.h (SLOW_BYTE_ACCESS): Turn off for MIPS16.

2007-04-28  Jan Hubicka  <jh@suse.cz>

        * config/alpha/alpha.c (alpha_output_mi_thunk_osf): Use
        insn_locators_alloc instead of insn_locators_initialize;
        call reset_block_changes.
        * config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
        * config/sh/sh.c (sparc_output_mi_thunk): Likewise.
        * config/is64/ia64.c (ia64_output_mi_thunk): Likewise.
        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
        * config/score/score.c (th_output_mi_thunk): Likewise.
        * config/mips/mips.c (mips_output_mi_thunk): Likewise.
        * cfglyaout.c (set_curr_insn_source_location, set_curr_insn_block):
        tolerate uninitialized locator info.

        Re-apply:
        * function.c (init_function_start): Don't init line number info.
        (expand_function_end): Update.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): Kill.
        * function.h (reset_block_changes, record_block_change,
        finalize_block_changes, check_block_change, free_block_changes): Remove
        prototypes.
        (struct function): Remove ib_boundaries_block.
        * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
        Use curr_insn_locator to initialize locator.
        (emit_line_note): Remove.
        * cfgexpand.c (expand_gimple_cond_expr): Update.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Initialize/finalize locators.
        * expr.c (expand_expr_real): Update.
        * cfglayout.c (line_locators_locs, line_locators_lines,
        file_locators_locs, file_locators_files): Remove.
        (set_block_levels): Move to cfgexpand.c.
        (insn_locators_initialize): Remove.
        (pass_insn_locators_initialize): Remove.
        (locations_locators_locs, locations_locators_vals): New static vars.
        (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
        Likewise.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        New functions.
        (locator_location): New.
        (locator_line, locator_file): Rewrite.
        * rtl.h (emit_line_note): Kill.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        Declare.
        * tree-inline.c (initialize_cfun): Do not initialize
        ib_boundaries_block.
        * passes.c (pass_insn_locators_initialize): Remove.

2007-04-28  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfg.c (move_block_to_fn): Release bb from dominance
        info.  Update last_basic_block correctly.

2007-04-27  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31701
        * config/sh/sh.c (output_stack_adjust): Avoid using the frame
        register itself to hold the offset constant.  Tell flow the use
        of r4 and r5 when they are used.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_into_cond): Keep track
        if we simplified anything.
        (tree_ssa_forward_propagate_single_use_vars): Defer overflow
        warnings until we did a simplification and the stmt was not
        marked as TREE_NO_WARNING.

2007-04-27  Mike Stump  <mrs@apple.com>

        * config/rs6000/darwin.h (ALWAYS_PUSH_CONSTS_USING_REGS_P): Remove.

2007-04-27  Ian Lance Taylor  <iant@google.com>

        PR middle-end/31710
        * tree.c (build_distinct_type_copy): If TYPE_MIN_VALUE or
        TYPE_MAX_VALUE exist, convert them to the new type.

2007-04-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfgcleanup.c (cleanup_tree_cfg): Verify dominance info
        if it claims to be available.
        * tree-ssa-dce.c (remove_dead_stmt): Mark cfg as altered when
        edge is redirected.
        (perform_tree_ssa_dce): Always free postdominators.

2007-04-27  Richard Henderson  <rth@redhat.com>

        * config/alpha/predicates.md (aligned_memory_operand): Mark
        as define_special_predicate.
        (unaligned_memory_operand, normal_memory_operand): Likewise.
        (reg_or_unaligned_mem_operand): Remove.
        (any_memory_operand): Match the documentation and check for
        non-renumbered pseudos during reload.
        * config/alpha/alpha.c (alpha_secondary_reload): Rename from
        alpha_secondary_reload_class, update to new interface, make static.
        Handle CQImode like HImode.  Remove FP subreg check.
        (alpha_expand_mov): Use replace_equiv_address.
        (alpha_expand_mov_nobwx): Use any_memory_operand.
        (TARGET_SECONDARY_RELOAD): New.
        * config/alpha/alpha.h (SECONDARY_INPUT_RELOAD_CLASS): Remove.
        (SECONDARY_OUTPUT_RELOAD_CLASS): Remove.
        * config/alpha/sync.md (I12MODE, I48MODE, modesuffix): Move ...
        * config/alpha/alpha.md: ... here.
        (RELOAD12, reloadmode): New.
        (movcqi): New.
        (reload_in<RELOAD12>): Macro-ize from reload_inqi, reload_inhi.
        Don't handle the aligned case here.
        (reload_out<RELOAD12>): Macro-ize from reload_outqi, reload_outhi.
        (reload_in<I12MODE>_aligned): Macro-ize from reload_inqi_help,
        reload_inhi_help.  Don't expect a scratch register.
        (reload_out<I12MODE>_aligned): Macro-ize from reload_outqi_help,
        reload_outhi_help.
        * config/alpha/alpha-protos.h (alpha_secondary_reload_class): Remove.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (get_prop_dest_stmt): Fix comment typo.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30965
        PR tree-optimization/30978
        * Makefile.in (tree-ssa-forwprop.o): Depend on $(FLAGS_H).
        * tree-ssa-forwprop.c (forward_propagate_into_cond_1): Remove.
        (find_equivalent_equality_comparison): Likewise.
        (simplify_cond): Likewise.
        (get_prop_source_stmt): New helper.
        (get_prop_dest_stmt): Likewise.
        (can_propagate_from): Likewise.
        (remove_prop_source_from_use): Likewise.
        (combine_cond_expr_cond): Likewise.
        (forward_propagate_comparison): New function.
        (forward_propagate_into_cond): Rewrite to use fold for
        tree combining.
        (tree_ssa_forward_propagate_single_use_vars): Call
        forward_propagate_comparison to propagate comparisons.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31715
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make
        sure to do computation on the offset in an appropriate
        signed type.

2007-04-27  Richard Sandiford  <richard@codesourcery.com>

        * reload.h (elimination_target_reg_p): Declare.
        * reload.c (find_reloads): Don't apply the reg_rtx move
        optimization if the SET_DEST satisfies elimination_target_reg_p.
        * reload1.c (elimination_target_reg_p): New function.
        (gen_reload): In the move/add2 fallback, make sure that op0
        does not overlap the destination register.

2007-04-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-im.c (determine_invariantness_stmt): Attempt to
        transform only GIMPLE_MODIFY_STMTs.
        * tree-complex.c (expand_complex_operations_1): Ditto.
        (expand_complex_div_wide): Do not create gotos in COND_EXPR branches.
        * tree-ssa-loop-manip.c (build_if_stmt): Removed.
        (tree_transform_and_unroll_loop): Do not create gotos in COND_EXPR
        branches.
        * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
        tree_mod_subtract, tree_ic, tree_stringop_fixed_value): Ditto.
        * omp-low.c (expand_parallel_call, expand_omp_for_generic,
        expand_omp_for_static_chunk, expand_omp_for_static_nochunk): Ditto.
        * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes,
        slpeel_add_loop_guard): Ditto.
        * tree-mudflap.c (mf_build_check_statement_for): Ditto.
        * lambda-code.c (perfect_nestify): Ditto.
        * tree-iterator.c (tsi_split_statement_list_before): Fix splitting
        before the first statement.
        * tree-optimize.c (execute_free_datastructures): Fix comments.
        (execute_free_cfg_annotations): Do not call disband_implicit_edges.
        * tree-flow.h (disband_implicit_edges): Declaration removed.
        * tree-cfg.c (make_cond_expr_edges): Remove gotos from COND_EXPR
        branches.
        (cleanup_dead_labels, tree_redirect_edge_and_branch): Handle COND_EXPRs
        without gotos.
        (disband_implicit_edges, has_label_p): Removed.
        (tree_verify_flow_info): Verify that COND_EXPR branches are empty.
        (tree_lv_add_condition_to_bb): Do not create gotos in COND_EXPR
        branches.
        * tree.c (build3_stat): Mark COND_EXPRs used as statements as having
        side effects.
        * tree-pretty-print.c (dump_implicit_edges): Dump implicit edges
        also for COND_EXPRs.
        * cfgexpand.c (label_rtx_for_bb): New function.
        (expand_gimple_cond_expr): Do not expect gotos in COND_EXPR branches.
        Use label_rtx_for_bb to find the labels.
        (expand_gimple_basic_block): Remove RETURN_EXPR at the end of the
        last block.  Detect fallthru edges.

2007-04-26  Ian Lance Taylor  <iant@google.com>

        PR target/28675
        * reload.c (find_reloads_subreg_address): If the address was valid
        in the original mode but not in the new mode, reload the whole
        address.

2007-04-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfgcleanup.c (cfgcleanup_altered_bbs): New global variable.
        (remove_fallthru_edge): Use remove_edge_and_dominated_blocks.
        (cleanup_control_expr_graph): Do not invalidate dominance info.
        Record altered blocks.
        (cleanup_control_flow, cleanup_forwarder_blocks): Removed.
        (cleanup_control_flow_bb, split_bbs_on_noreturn_calls,
        cleanup_tree_cfg_bb): New functions.
        (remove_forwarder_block): Do not maintain the worklist of blocks.
        Record altered blocks.
        (cleanup_tree_cfg_1): Iterate over cfgcleanup_altered_bbs,
        not over whole cfg.
        (cleanup_tree_cfg): Do not iterate cleanup_tree_cfg_1.  Only call
        delete_unreachable_blocks if dominators are not available.
        * tree-inline.c (optimize_inline_calls): Free dominance information
        earlier.
        * tree-flow.h (remove_edge_and_dominated_blocks,
        cfgcleanup_altered_bbs): Altered.
        * tree-cfg.c (replace_uses_by, tree_merge_blocks): Record altered
        blocks.
        (get_all_dominated_blocks, remove_edge_and_dominated_blocks): New
        functions.
        (tree_purge_dead_eh_edges): Use remove_edge_and_dominated_blocks,
        do not invalidate dominators.

2007-04-26  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for ATmega8HVA and
        ATmega16HVA devices. Move AT90USB82 device to 'avr5' architecture.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2007-04-26  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.md (ip_value):  Fix itanium_class attribute.

2007-04-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31703
        * tree-ssa-loop-im.c (rewrite_bittest): Make sure to use
        the right type for the target of the bittest.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/vx-common.h (RETURN_IN_MEMORY): Use
        ix86_sol10_return_in_memory.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/i386.c (ix86_sol10_return_in_memory): Remove unused
        variables.

2007-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/31598
        * tree-inline.c (copy_body_r): Don't touch TREE_TYPE of OMP_CLAUSE.

        PR tree-optimization/30558
        * tree-eh.c (lower_eh_filter): If EH_FILTER_MUST_NOT_THROW
        clear this_state.prev_try.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>
            Mark Mitchell  <mark@codesourcery.com>

        * config/i386/i386-protos.h (ix86_sol10_return_in_memory): Declare.
        * config/i386/i386.c (ix86_sol10_return_in_memory): New function.
        * config/i386/sol2-10.h (RETURN_IN_MEMORY): Use it.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>

        PR driver/31107
        * doc/invoke.texi (%:print-asm-header): Document.
        * gcc.c (asm_options): Use %:print-asm-header() for --target-help
        and -ftarget-help.
        (static_spec_functions): Add print-asm-header.
        (main): Print a banner before the --target-help linker options.
        (print_asm_header_spec_function): New function.

2007-04-25  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31403
        * config/sh/sh.md (movsi_ie): Fix length for TARGET_SH2A.
        (movsf_ie): Likewise.

2007-04-25  Paolo Carlini  <pcarlini@suse.de>

        * doc/extend.texi ([Type Traits]): Adjust per N2255.

2007-04-25  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (__udivsi3, __divsi3): Throw an exception
        for divide-by-zero.
        (__umodsi3, __modsi3): Likewise.

2007-04-25  Dirk Mueller  <dmueller@suse.de>

        * c-typeck.c (build_compound_expr): Annotate warning()
        call with OPT_Wunused_value.
        * tree-ssa.c (warn_uninit): Annotate warning with
        OPT_Wunintialized.
        * c-common.c (handle_sentinel_attribute): Annotate warning
        call with OPT_Wattributes.

2007-04-25  Thiemo Seufer  <ths@mips.com>

        * config/mips/mips.opt (mdmx, mmt, mno-mdmx): New options.
        (mips16): Fix typo.
        * config/mips/mips.h (ASM_SPEC): Pass -mmt/-mno-mt and -mdmx/-mno-mdmx
        on to the assembler.  Improve handling of -mno-mips16.  Add handling
        of -mno-mips3d, -mno-dsp, -mno-dspr2.
        * doc/invoke.texi (MIPS Options): Whitespace cleanup.  Fix wrong use
        of @itemx.  Document -mno-dsp, -mno-dspr2, -mno-paired-single, -mdmx,
        -mno-mdmx, -mno-mips3d, -mmt and -mno-mt.

2007-04-25  Danny Smith  <dannysmith.users.sourceforge.net>

        PR target/31680
        * config/i386/winnt.c (i386_pe_file_end): Strip only
        USER_LABEL_PREFIX when writing export name.

2007-04-25  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (sh-wrs-vxworks): Don't include dbxelf.h.  Include
        sh/elf.h, vx-common.h and vxworks.h.
        * config/sh/sh.h: Include config/vxworks-dummy.h.
        (SUBTARGET_OVERRIDE_OPTIONS): Define.
        (OVERRIDE_OPTIONS): Use it.
        * config/sh/sh.md (GOTaddr2picreg): Add suport for VxWorks RTPs.
        (vxworks_picreg): New pattern.
        * config/sh/vxworks.h (TARGET_OS_CPP_BUILTINS): Use
        VXWORKS_OS_CPP_BUILTINS.
        (LIB_SPEC, LINK_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Redefine
        to their VXWORKS_* equivalents.
        (SUBTARGET_OVERRIDE_OPTIONS, SUBTARGET_CPP_SPEC): Define.
        (SUBTARGET_LINK_EMUL_SUFFIX, FUNCTION_PROFILER): Define.
        * config/sh/lib1funcs.asm (NO_FPSCR_VALUES): Define for VxWorks PIC.
        (set_fpscr, ic_invalidate): Add VxWorks PIC sequences.
        * config/sh/t-vxworks (MULTILIB_OPTIONS): Add m4a, -mrtp and
        -mrtp/-fPIC multilibs.
        (MULTILIB_EXCEPTIONS): Generalize globs accordingly.
        (MULTILIB_MATCHES, EXTRA_MULTILIB_PARTS): Define.
        (MULTILIB_OSDIRNAMES): Delete.

2007-04-25  Anatoly Sokolov <aesok@post.ru>

        PR target/18989
        * config/avr/avr.h (ASM_OUTPUT_ALIGN): Redefine.

2007-04-24  Brooks Moses  <brooks.moses@codesourcery.com>

        * real.c (mpfr_from_real): Handle Inf and NaN, and allow the
        rounding mode to be specified by the caller.
        (real_to_mpfr) Likewise.
        * real.h: Update mpfr_from_real, mpfr_to_real prototypes to
        include new arguments.
        * builtins.c: Update mpfr_from_real, mpfr_to_real calls.

2007-04-24  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31605
        * tree-vrp.c (set_value_range): Check that min and max are not
        both overflow infinities.
        (set_value_range_to_value): New static function.
        (extract_range_from_binary_expr): Call set_value_range_to_value.
        (extract_range_from_cond_expr): Likewise.
        (extract_range_from_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.  Don't create a range
        which overflows on both sides.
        (vrp_meet): Check for a useless range.
        (vrp_visit_phi_node): If we see a constant which looks like an
        overflow infinity, turn off the TREE_OVERFLOW flag.

2007-04-24  Ian Lance Taylor  <iant@google.com>

        * flow.c (elim_reg_cond): Handle a comparison of a subreg.

2007-04-24  Simon Martin  <simartin@users.sourceforge.net>

        PR diagnostic/25923
        * tree-pass.h (TDF_DIAGNOSTIC): New dump control to specify that a
        diagnostic message is being built.
        * tree-pretty-print.c (dump_generic_node): Only write the
        formatted text into BUFFER's stream if we are not building a
        diagnostic message.
        * toplev.c (default_tree_printer): Pass TDF_DIAGNOSTIC to
        dump_generic_node.
        * Makefile.in (toplev.o): Depend on tree-pass.h.

2007-04-24  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31602
        * tree-ssa-loop-ch.c (copy_loop_headers): Set TREE_NO_WARNING for
        conditionals in the copied loop header.
        * tree-cfg.c (fold_cond_expr_cond): Don't issue undefined overflow
        warnings if TREE_NO_WARNING is set.
        * doc/invoke.texi (Warning Options): Clarify that
        -Wstrict-overflow does not warn about loops.

2007-04-24  Janis Johnson  <janis187@us.ibm.com>

        * config/rs6000/rs6000.c (function_arg_advance): For 32-bit ELF ABI,
        expand on the comment about _Decimal128 arguments and check the
        integer result of the modulus operation; for 64-bit ELF ABI, ensure
        that _Decimal128 argument uses even/odd register pair.
        (function_arg): Ditto.

2007-04-24  Hui-May Chang <hm.chang@apple.com>

        * reload1.c (merge_assigned_reloads) : Do not merge a RELOAD_OTHER
        instruction with a RELOAD_FOR_OPERAND_ADDRESS instruction.

2007-04-24  Richard Guenther  <rguenther@suse.de>
            Olga Golovanevsky  <olga@il.ibm.com>

        * fold-const.c (multiple_of_p): Check for bottom
        to be zero.

2007-04-24  Richard Henderson  <rth@redhat.com>

        * libgcc2.h (AVOID_FP_TYPE_CONVERSION): Rename from
        IS_IBM_EXTENDED.  Also define in terms of WIDEST_HARDWARE_FP_SIZE.
        * libgcc2.c (__floatdisf): Avoid double-word arithmetic when
        looking for non-zero bits shifted out.  Avoid a recursive call
        when constructing the scalar.
        (__floatundisf): Likewise.

2007-04-24  Nathan Froyd  <froydnj@codesourcery.com>

        * dwarf2out.c (field_byte_offset): Move the existing logic
        under the control of PCC_BITFIELD_TYPE_MATTERS and just use
        the bit offset of the field if !PCC_BITFIELD_TYPE_MATTERS.

2007-04-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR target/31641
        * config/s390/s390.c (s390_expand_setmem): Don't ICE for constant length
        argument of 0 for memset.
        (s390_expand_movmem, s390_expand_setmem, s390_expand_cmpmem): Use
        unsigned shift instead of the signed variant.

2007-04-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs_ibm",
        "fix_trunc<BFP:mode><GPR:mode>2_ieee", "fix_truncdfsi2_ibm",
        "floatsidf2_ibm", "floatsisf2", "truncdfsf2_ieee", "truncdfsf2_ibm",
        "*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
        "*trunctfsf2_ibm", "extendsfdf2_ieee", "extendsfdf2_ibm",
        "*extenddftf2_ieee", "*extenddftf2_ibm", "*extendsftf2_ieee",
        "*extendsftf2_ibm", "*add<mode>3", "*add<mode>3_ibm", "*sub<mode>3_ibm",
        "*mul<mode>3", "*mul<mode>3_ibm", "*div<mode>3", "*div<mode>3_ibm",
        "*neg<mode>2_ibm", "*abs<mode>2_ibm"): Insn definitions removed.
        ("fix_trunc<BFP:mode><GPR:mode>2_bfp", "floatsi<mode>2",
        "truncdfsf2", "trunctf<mode>2", "add<mode>3", "sub<mode>3",
        "mul<mode>3", "div<mode>3"): Insn definitions added.
        ("fixuns_trunc<BFP:mode><GPR:mode>2", "fix_trunc<mode>di2",
        "fix_trunc<mode>si2"): gen_fix_trunc<BFP:mode><GPR:mode>2_ieee renamed
        to gen_fix_trunc<BFP:mode><GPR:mode>2_bfp.
        ("fix_truncdfsi2", "floatsitf2", "truncdfsf2", "trunctfdf2",
        "trunctfsf2", "extendsfdf2", "extenddftf2", "extendsftf2", "add<mode>3",
        "sub<mode>3", "mul<mode>3", "div<mode>3"): Expander removed.
        ("fix_trunc<mode>si2", "extend<DSF:mode><BFP:mode>2"): Expander added.
        * config/s390/s390.h (TARGET_IBM_FLOAT, TARGET_IEEE_FLOAT,
        TARGET_FLOAT_FORMAT): Macro definitions removed.
        (FP_REGNO_P): No special case for !TARGET_IEEE_FLOAT anymore.
        * config/s390/s390.c (struct processor_costs, z900_cost, z990_cost,
        z9_109_cost): Remove fields for hexfloat instructions: dxr, ddr and der.
        (s390_rtx_costs): Remove !TARGET_IEEE_FLOAT special branches.
        (s390_gen_rtx_const_DI): Function removed.
        * config/s390/s390-protos.h (s390_gen_rtx_const_DI): Prototype removed.

2007-04-24  Richard Sandiford  <richard@codesourcery.com>

        * optabs.c (set_conv_libfunc): Prefer libgcc2's __ffsMM2 functions
        over an external ffs function.

2007-04-24  Chao-ying Fu  <fu@mips.com>
            Richard Sandiford  <richard@nildram.co.uk>

        * doc/md.texi (madd@var{m}@var{n}4, umadd@var{m}@var{n}4): Document.
        * optabs.h (OTI_smadd_widen, OTI_umadd_widen): New optab_indexes.
        (smadd_widen_optab, umadd_widen_optab): Define.
        * optabs.c (init_optabs): Initialize smadd_widen_optab and
        umadd_widen_optab.
        * genopinit.c (optabs): Fill in smadd_widen_optab and
        umadd_widen_optab.
        * expr.c (expand_expr_real_1): Try to use smadd_widen_optab
        and umadd_widen_optab to implement multiply-add sequences.
        * config/mips/mips.md (*<su>mul_acc_di): Rename to...
        (<u>maddsidi4): ...this.  Extend condition to include
        GENERATE_MADD_MSUB and TARGET_DSPR2.  Change the constraint
        of operand 0 to "ka" and use the three-operand form of madd<u>
        for TARGET_DSPR2.
        * config/mips/mips-dspr2.md (mips_madd, mips_maddu): Convert
        to define_expands.
        * config/mips/constraints.md (ka): New register constraint.

2007-04-24  Jan Hubicka  <j@suse.cz>

        Revert:

        2007-04-23  Jan Hubicka  <jh@suse.cz>
        * function.c (init_function_start): Don't init line number info.
        (expand_function_end): Update.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): Kill.
        * function.h (reset_block_changes, record_block_change,
        finalize_block_changes, check_block_change, free_block_changes): Remove
        prototypes.
        (struct function): Remove ib_boundaries_block.
        * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
        Use curr_insn_locator to initialize locator.
        (emit_line_note): Remove.
        * cfgexpand.c (expand_gimple_cond_expr): Update.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Initialize/finalize locators.
        * expr.c (expand_expr_real): Update.
        * cfglayout.c (line_locators_locs, line_locators_lines,
        file_locators_locs, file_locators_files): Remove.
        (set_block_levels): Move to cfgexpand.c.
        (insn_locators_initialize): Remove.
        (pass_insn_locators_initialize): Remove.
        (locations_locators_locs, locations_locators_vals): New static vars.
        (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
        Likewise.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        New functions.
        (locator_location): New.
        (locator_line, locator_file): Rewrite.
        * rtl.h (emit_line_note): Kill.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        Declare.
        * tree-inline.c (initialize_cfun): Do not initialize
        ib_boundaries_block.
        * passes.c (pass_insn_locators_initialize): Remove.

2007-04-24  Daniel Franke  <franke.daniel@gmail.com>

        * doc/invoke.texi: Removed leading '-' from option index entries.

2007-04-23  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-phinodes.c (reserve_phi_args_for_new_edge, remove_phi_node):
        Use phi_nodes_ptr.
        (create_phi_node): Use set_phi_nodes.
        * omp-low.c (expand_omp_parallel): Use bb_stmt_list.
        * tree-if-conv.c (process_phi_nodes): Use set_phi_nodes.
        (combine_blocks):  Use bb_stmt_list and set_bb_stmt_list.
        * tree-flow-inline.h (phi_nodes, set_phi_nodes,
        (bsi_start, bsi_last): Use bb_stmt_list.
        (phi_nodes_ptr, bb_stmt_list, set_bb_stmt_list): New functions.
        * cfgexpand.c (expand_gimple_basic_block): Use bb_stmt_list.
        Traverse the statements using tsi iterator.
        * basic-block.h (struct basic_block_def): Fields stmt_list
        and phi_nodes moved to ...
        (struct tree_bb_info): ... new structure.
        * tree-cfg.c (create_bb): Allocate il.tree.  Use set_bb_stmt_list.
        (tree_merge_blocks): Use bb_stmt_list and set_bb_stmt_list.
        (remove_bb): Handle blocks with NULL stmt list.  Clear il.tree field.
        (tree_verify_flow_info): Verify that il.tree is not set for
        entry and exit block.
        (tree_split_block): Use set_bb_stmt_list.

2007-04-23  Mike Stump  <mrs@apple.com>

        * config/i386/i386.c (ix86_tune_features
        [X86_TUNE_DEEP_BRANCH_PREDICTION]: Prefer call over thunks on
        nocona and core2.

2007-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.md (prefix_extra): New attribute.
        (length): Add prefix_extra.

        * onfig/i386/sse.md (sse2_movdqu): Set prefix_data16.
        (sse2_movntv2di): Likewise.
        (sse2_cvtps2dq): Likewise.
        (sse2_cvtpd2pi): Likewise.
        (sse2_cvttpd2pi): Likewise.
        (*sse2_cvtpd2ps): Likewise.
        (*add<mode>3): Likewise.
        (sse2_ssadd<mode>3): Likewise.
        (sse2_usadd<mode>3): Likewise.
        (*sub<mode>3): Likewise.
        (sse2_sssub<mode>3): Likewise.
        (sse2_ussub<mode>3): Likewise.
        (*mulv8hi3): Likewise.
        (*smulv8hi3_highpart): Likewise.
        (*umulv8hi3_highpart): Likewise.
        (sse2_umulv2siv2di3): Likewise.
        (sse2_pmaddwd): Likewise.
        (ashr<mode>3): Likewise.
        (lshr<mode>3): Likewise.
        (ashl<mode>3): Likewise.
        (sse2_ashlti3): Likewise.
        (sse2_lshrti3): Likewise.
        (*umaxv16qi3): Likewise.
        (*smaxv8hi3): Likewise.
        (*uminv16qi3): Likewise.
        (*sminv8hi3): Likewise.
        (sse2_eq<mode>3): Likewise.
        (sse2_gt<mode>3): Likewise.
        (*and<mode>3): Likewise.
        (sse2_nand<mode>3): Likewise.
        (*ior<mode>3): Likewise.
        (*xor<mode>3): Likewise.
        (sse2_packsswb): Likewise.
        (sse2_packssdw): Likewise.
        (sse2_packuswb): Likewise.
        (sse2_punpckhbw): Likewise.
        (sse2_punpcklbw): Likewise.
        (sse2_punpckhwd): Likewise.
        (sse2_punpcklwd): Likewise.
        (sse2_punpckhdq): Likewise.
        (sse2_punpckldq): Likewise.
        (sse2_punpckhqdq): Likewise.
        (sse2_punpcklqdq): Likewise.
        (*sse2_pinsrw): Likewise.
        (*sse2_pextrw): Likewise.
        (sse2_pshufd_1): Likewise.
        (sse2_uavgv16qi3): Likewise.
        (sse2_uavgv8hi3): Likewise.
        (sse2_psadbw): Likewise.
        (sse2_pmovmskb): Likewise.
        (*sse2_maskmovdqu): Likewise.
        (*sse2_maskmovdqu_rex64): Likewise.
        (sse4a_extrqi): Likewise.
        (sse4a_extrq): Likewise.
        (sse3_lddqu): Set prefix_rep.
        (sse3_addsubv4sf3): Likewise.
        (sse3_haddv4sf3): Likewise.
        (sse3_hsubv4sf3): Likewise.
        (sse_cvtss2si): Likewise.
        (sse_cvtss2si_2): Likewise.
        (sse_cvtss2siq): Likewise.
        (sse_cvtss2siq_2): Likewise.
        (sse_cvttss2si): Likewise.
        (sse_cvttss2siq): Likewise.
        (sse2_cvttps2dq): Likewise.
        (sse3_movshdup): Likewise.
        (sse3_movsldup): Likewise.
        (sse2_cvtsd2si): Likewise.
        (sse2_cvtsd2si_2): Likewise.
        (sse2_cvtsd2siq): Likewise.
        (sse2_cvtsd2siq_2): Likewise.
        (sse2_cvttsd2si): Likewise.
        (sse2_cvttsd2siq): Likewise.
        (*sse2_cvtpd2dq): Likewise.
        (*sse2_cvttpd2dq): Likewise.
        (sse2_pshuflw_1): Likewise.
        (sse2_pshufhw_1): Likewise.
        (sse4a_insertqi): Likewise.
        (sse4a_insertq): Likewise.
        (ssse3_phaddwv8hi3): Set prefix_data16 and prefix_extra.
        (ssse3_phadddv4si3): Likewise.
        (ssse3_phaddswv8hi3): Likewise.
        (ssse3_phsubwv8hi3): Likewise.
        (ssse3_phsubdv4si3): Likewise.
        (ssse3_phsubswv8hi3): Likewise.
        (ssse3_pmaddubswv8hi3): Likewise.
        (ssse3_pmulhrswv8hi3): Likewise.
        (ssse3_pshufbv16qi3): Likewise.
        (ssse3_psign<mode>3): Likewise.
        (ssse3_palignrti): Likewise.
        (abs<mode>2): Likewise.
        (ssse3_phaddwv4hi3): Set prefix_extra.
        (ssse3_phadddv2si3): Likewise.
        (ssse3_phaddswv4hi3): Likewise.
        (ssse3_phsubwv4hi3): Likewise.
        (ssse3_phsubdv2si3): Likewise.
        (ssse3_phsubswv4hi3): Likewise.
        (ssse3_pmaddubswv4hi3): Likewise.
        (ssse3_pmulhrswv4hi3): Likewise.
        (ssse3_pshufbv8qi3): Likewise.
        (ssse3_psign<mode>3): Likewise.
        (ssse3_palignrdi): Likewise.
        (abs<mode>2): Likewise.
        (sse2_cvtdq2ps): Set mode to V4SF instead of V2DF.
        (*vec_dupv2df): Set mode to V2DF instead of V4SF.
        (sse2_pmovmskb): Set mode to SI instead of V2DF.

2007-04-23  Nick Clifton  <nickc@redhat.com>

        * params.def: Fix formatting of emacs local variables.

2007-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (sse2_stored): Don't split to inter-unit
        move if inter-unit move isn't allowed.
        Don't split moving the first element of V2DI to DI to inter-unit
        move if inter-unit move isn't allowed.

2007-04-23  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sink.c (execute_sink_code): Calculate CDI_DOMINATORS
        and CDI_POST_DOMINATORS separately.

2007-04-23  Nick Clifton  <nickc@redhat.com>

        * c.opt (Wformat-contains-nul): Add warning attribute.

2007-04-23  Jan Hubicka  <jh@suse.cz>

        * function.c (init_function_start): Don't init line number info.
        (expand_function_end): Update.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): Kill.
        * function.h (reset_block_changes, record_block_change,
        finalize_block_changes, check_block_change, free_block_changes): Remove
        prototypes.
        (struct function): Remove ib_boundaries_block.
        * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
        Use curr_insn_locator to initialize locator.
        (emit_line_note): Remove.
        * cfgexpand.c (expand_gimple_cond_expr): Update.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Initialize/finalize locators.
        * expr.c (expand_expr_real): Update.
        * cfglayout.c (line_locators_locs, line_locators_lines,
        file_locators_locs, file_locators_files): Remove.
        (set_block_levels): Move to cfgexpand.c.
        (insn_locators_initialize): Remove.
        (pass_insn_locators_initialize): Remove.
        (locations_locators_locs, locations_locators_vals): New static vars.
        (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
        Likewise.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        New functions.
        (locator_location): New.
        (locator_line, locator_file): Rewrite.
        * rtl.h (emit_line_note): Kill.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        Declare.
        * tree-inline.c (initialize_cfun): Do not initialize
        ib_boundaries_block.
        * passes.c (pass_insn_locators_initialize): Remove.

2007-04-22  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31448
        * expr.c (reduce_to_bit_field_precision): Handle
        CONST_INT rtx's.

2007-04-22  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/24659
        * optabs.h (enum optab_index) [OTI_vec_unpacks_hi,
        OTI_vec_unpacks_lo]: Update comment to mention floating point operands.
        (vec_pack_trunc_optab): Rename from vec_pack_mod_optab.
        * genopinit.c (optabs): Rename vec_pack_mod_optab
        to vec_pack_trunc_optab.
        * tree-vect-transform.c (vectorizable_type_demotion): Do not fail
        early for scalar floating point operands for NOP_EXPR.
        (vectorizable_type_promotion): Ditto.
        * optabs.c (optab_for_tree_code) [VEC_PACK_TRUNC_EXPR]: Return
        vec_pack_trunc_optab.
        (expand_binop): Rename vec_float_trunc_optab to vec_pack_mod_optab.

        * tree.def (VEC_PACK_TRUNC_EXPR): Rename from VEC_PACK_MOD_EXPR.
        * tree-pretty-print.c (dump_generic_node) [VEC_PACK_TRUNC_EXPR]:
        Rename from VEC_PACK_MOD_EXPR.
        (op_prio) [VEC_PACK_TRUNC_EXPR]: Ditto.
        * expr.c (expand_expr_real_1): Ditto.
        * tree-inline.c (estimate_num_insns_1): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Ditto.

        * config/i386/sse.md (vec_unpacks_hi_v4sf): New expander.
        (vec_unpacks_lo_v4sf): Ditto.
        (vec_pack_trunc_v2df): Ditto.
        (vec_pack_trunc_v8hi): Rename from vec_pack_mod_v8hi.
        (vec_pack_trunc_v4si): Rename from vec_pack_mod_v4si.
        (vec_pack_trunc_v2di): Rename from vec_pack_mod_v2di.

        * config/rs6000/altivec.md (vec_pack_trunc_v8hi): Rename from
        vec_pack_mod_v8hi.
        (vec_pack_trunc_v4si): Rename from vec_pack_mod_v4si.

        * doc/c-tree.texi (Expression trees) [VEC_PACK_TRUNC_EXPR]:
        Rename from VEC_PACK_MOD_EXPR.  This expression also represent
        packing of floating point operands.
        [VEC_UNPACK_HI_EXPR, VEC_UNPACK_LO_EXPR]: These expression also
        represent unpacking of floating point operands.
        * doc/md.texi (Standard Names) [vec_pack_trunc]: Update documentation.
        [vec_unpacks_hi]: Ditto.
        [vec_unpacks_lo]: Ditto.

2007-04-22  Jan Hubicka  <jh@suse.cz>

        * final.c (rest_of_handle_final): Call
        targetm.asm_out.constructor/targetm.asm_out.destructor
        * cgraphunit.c (cgraph_build_static_cdtor): Don't do it here; set
        proper priority via decl_*_priority_insert.
        * c-common.c (c_expand_body): Likewise.

2007-04-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/29789
        * tree-ssa-loop-im.c (stmt_cost): Adjust cost of shifts.
        (rewrite_reciprocal): New helper split out from
        determine_invariantness_stmt.
        (rewrite_bittest): Likewise.
        (determine_invariantness_stmt): Rewrite (A >> B) & 1 to
        A & (1 << B) if (1 << B) is loop invariant but (A >> B)
        is not.

2007-04-22  Revital Eres  <eres@il.ibm.com>

        * loop-unroll.c (var_to_expand): New field to support also
        insns of the form x = something + x.
        (analyze_insn_to_expand_var): Use it.
        (expand_var_during_unrolling): Likewise.

2007-04-21  Zdenek Dvorak  <dvorakz@suse.cz>

        * predict.c: Include pointer-set.h.
        (bb_predictions): New variable.
        (tree_predicted_by_p, tree_predict_edge,
        remove_predictions_associated_with_edge): Use bb_predictions map
        instead of bb->predictions.
        (clear_bb_predictions, assert_is_empty): New functions.
        (combine_predictions_for_bb): Use bb_predictions map.  Call
        clear_bb_predictions.
        (tree_estimate_probability): Create and free bb_predictions map.
        * Makefile.in (predict.o): Add pointer-set.h dependency.
        * basic-block.h (struct basic_block_def): Remove predictions
        field.
        * cfgrtl.c (rtl_verify_flow_info_1): Do not check bb->predictions.

2007-04-21  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31480
        * config/sh/sh.md (length): Check if prev_nonnote_insn (insn)
        is null.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * timevar.c (timevar_print): Change reference of --disable-checking to
        --enable-checking=release.  Also warn if assert checking is disabled.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C/30265
        * c-gimplifier.c (gimplify_compound_literal_expr): Mark the
        decl as addressable if the compound literal was marked as
        addressable.
        Mark the decl as a gimple register if it is a complex or
        vector decl and does not live in memory.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * tree.h (GIMPLE_TUPLE_P): Also true for PHI_NODEs.
        (GENERIC_NEXT): New function macro.
        (PHI_CHAIN): Use phi_node's new chain variable.
        (tree_phi_node): Change tree_common to tree_base
        and add the chain field.
        * tree-phinodes.c (make_phi_node): Don't set
        TREE_TYPE on the new node.
        * c-decl.c (lang_tree_node): Use GENERIC_NEXT
        instead of checking GIMPLE_TUPLE_P in chain_next.
        * tree-vect-transform.c
        (get_initial_def_for_induction): Look at
        PHI_RESULT_TREE for the type of the phi node.
        (update_vuses_to_preheader): Use PHI_CHAIN
        instead of TREE_CHAIN on the phi node.
        * tree-ssa-structalias.c (compute_points_to_sets):
        Likewise.
        (ipa_pta_execute): Likewise.

2007-04-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/31136
        * fold-const.c (fold_unary): Call fold_convert_const on the
        original tree.

2007-04-21  Alexandre Oliva  <aoliva@redhat.com>

        * gcse.c (store_killed_in_insn): Handle PARALLELs.
        (store_killed_in_pat): New.

2007-04-20  Richard Henderson  <rth@redhat.com>

        PR target/31628
        * config/i386/i386.c (type_has_variadic_args_p): Look for any
        TREE_LIST with a void_type_node value, not void_list_node exactly.

2007-04-21  Douglas Gregor  <doug.gregor@gmail.com>

        * doc/standards.texi: Re-arrange into language-specific
        subsections. Add a C++ section, documenting which standards we
        support.

2007-04-21  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-structalias.c (delete_points_to_sets): Free graph->complex.
        * tree-ssa-operands.c (finalize_ssa_vuse_ops): Free new_ops.

2007-04-20  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/rs6000/sysv4.h (STARTFILE_DEFAULT_SPEC): Include
        ecrti.o and crtbegin.o.
        (LIB_DEFAULT_SPEC): Include -lc.
        (ENDFILE_DEFAULT_SPEC): Include crtend.o and ecrtn.o.

2007-04-20  Richard Henderson  <rth@redhat.com>

        PR target/28623
        * config/alpha/alpha.c (get_unaligned_address): Remove extra_offset
        argument; update all callers.
        (get_unaligned_offset): New.
        * config/alpha/alpha.md (extendqidi2, extendhidi2): Don't use
        get_unaligned_address, just pass on the address directly.
        (unaligned_extendqidi): Use gen_lowpart instead of open-coding
        the subreg in the helper patterns.
        (unaligned_extendqidi_le): Use get_unaligned_offset.
        (unaligned_extendqidi_be, unaligned_extendhidi_le): Likewise.
        (unaligned_extendhidi_be): Likewise.
        (unaligned_extendhidi): Tidy.
        * config/alpha/alpha-protos.h: Update.

2007-04-20  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.h (CPP_SPEC, CPP_SUBTARGET_SPEC): Remove.
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): Remove.
        * config/alpha/linux.h (CPP_SPEC): Undef before redefine.
        * config/alpha/linux-elf.h (EXTRA_SPECS): Rename SUBTARGET_EXTRA_SPECS.
        * config/alpha/freebsd.h (EXTRA_SPECS): Rename SUBTARGET_EXTRA_SPECS.
        (CPP_SPEC): Don't include %(cpp_subtarget).
        * config/alpha/netbsd.h (CPP_SPEC): Rename CPP_SUBTARGET_SPEC.
        (EXTRA_SPECS): Rename SUBTARGET_EXTRA_SPECS.
        * config/alpha/osf.h (CPP_SPEC, EXTRA_SPECS): Similarly.

2007-04-20  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (bdesc_2arg): Use ORDERED rather than UNORDERED
        for __builtin_ia32_cmpordss.

        PR tree-optimization/31632
        * fold-const.c (fold_binary): Use op0 and op1 instead of arg0
        and arg1 for optimizations of comparison against min/max values.
        Fold arg0 to arg1's type for optimizations of comparison against
        min+1 and max-1 values.

2007-04-19  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload.c (combine_reloads): When trying to use a dying register,
        check whether it's uninitialized and don't use if so.

2007-04-19  Brooks Moses  <brooks.moses@codesourcery.com>

        * fold-const.c: Remove prototypes for native_encode_expr and
        native_interpret_expr.
        (native_encode_expr): Make non-static.
        (native_interpret_expr): Likewise.
        * tree.h: Add prototypes for the above.

2007-04-19  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/spe.md (*frob_tf_ti, *frob_ti_tf, *frob_ti_tf_2,
        *mov_si<mode>_e500_subreg0, *mov_si<mode>_e500_subreg0_2,
        *mov_sitf_e500_subreg8, *mov_sitf_e500_subreg8_2, spe_extenddftf2,
        spe_fix_trunctfsi2_internal, spe_negtf2_internal, cmptfeq_gpr,
        tsttfeq_gpr, cmptfgt_gpr, tsttfgt_gpr, cmptflt_gpr, tsttflt_gpr):
        Add length attributes.

2007-04-19  Janis Johnson  <janis187@us.ibm.com>

        * ginclude/float.h: Check that __STDC_WANT_DEC_FP__ is defined,
        not that it is 1.

        * c-cppbuiltin.c (c_cpp_builtins): Remove definition of
        __STDC_WANT_DEC_FP__.

2007-04-19  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac: Allow both powerpc*-*-linux* and powerpc*-*-gnu*
        for long double compatibility.
        * configure: Regenerate.

2007-04-19  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/29841
        * cfgbuild.c (control_flow_insn_p): Return TRUE for unconditional
        trap instructions.
        * sched-deps.c (sched_analyze_insn): Prevent all non-jump instructions
        that may cause control flow transfer from being moved.

2007-04-18  Jan Hubicka  <jh@suse.cz>

        * fold-const.c (div_if_zero_remainder): Do signed divide for pointer
        types.

2007-04-18  Eric Christopher  <echristo@apple.com>

        * config/rs6000/darwin.md (load_macho_picbase): Use link register
        only. Update operands.
        * config/rs6000/rs6000.c (rs6000_emit_prologue): Update caller.
        * config/rs6000/rs6000.md (builtin_setjmp_receiver): Ditto. Move from
        link register to pic register.

2007-04-18  Dirk Mueller  <dmueller@suse.de>

        PR diagnostic/31227
        * tree-vrp.c (search_for_addr_array): New.
        (check_array_bounds): Suppress warning about
        address taken of array refs if its not de-referenced.

2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vectorizer.c (destroy_loop_vec_info): Set loop->aux to NULL.
        * tree-vect-analyze.c (vect_analyze_loop_form): Set loop->aux.

        * tree-vectorizer.h (NITERS_KNOWN_P): New.
        * tree-vect-analyze.c (vect_analyze_loop_form): Call NITERS_KNOWN_P
        instead of LOOP_VINFO_INT_NITERS to avoid having to geneate loop_info.

        * tree-vect-analyze.c (vect_determine_vectorization_factor): Add
        dump print.
        (vect_analyze_operations): Fix indenetation.  Fix a comment.  Fix a
        print message.
        (vect_analyze_scalar_cycles): Fix indentation.
        (vect_enhance_data_refs_alignment): Fix check in case of peeling.
        (vect_mark_relevant): Include phis in relevance analysis.

        * tree-vect-transform.c (vect_transform_loop): Add an assert.

2007-04-18  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (ptrreg_to_str): Replace error() with
        output_operand_lossage().

2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (get_initial_def_for_reduction): Clean away
        the unused code for reduction without adjust-in-epilog to simplify the
        function.

2007-04-18  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.h (S390_TDC_POSITIVE_ZERO): New constant.
        (S390_TDC_NEGATIVE_ZERO): New constant.
        (S390_TDC_POSITIVE_NORMALIZED_NUMBER): New constant.
        (S390_TDC_NEGATIVE_NORMALIZED_NUMBER): New constant.
        (S390_TDC_POSITIVE_DENORMALIZED_NUMBER): New constant.
        (S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): New constant.
        (S390_TDC_POSITIVE_INFINITY): New constant.
        (S390_TDC_NEGATIVE_INFINITY): New constant.
        (S390_TDC_POSITIVE_QUIET_NAN): New constant.
        (S390_TDC_NEGATIVE_QUIET_NAN): New constant.
        (S390_TDC_POSITIVE_SIGNALING_NAN): New constant.
        (S390_TDC_NEGATIVE_SIGNALING_NAN): New constant.
        (S390_TDC_INFINITY): New constant.
        * config/s390/s390.c (s390_canonicalize_comparison): Renamed
        UNSPEC_CMPINT to UNSPEC_CCU_TO_INT, added a UNSPEC_CCU_TO_INT-like
        optimization for UNSPEC_CCZ_TO_INT.
        * config/s390/s390.md ("*TDC_insn_<mode>"): New insn.
        ("*ccz_to_int"): New insn.
        ("isinf<mode>2"): New insn.
        (UNSPEC_CMPINT): Renamed to UNSPEC_CCU_TO_INT.
        (UNSPEC_CCU_TO_INT): New constant, replaces UNSPEC_CMPINT.
        (UNSPEC_CCZ_TO_INT): New constant.

2007-04-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/19431
        PR tree-optimization/21463
        * tree-pass.h (pass_phiprop): Declare.
        * passes.c (init_optimization_passes): New phiprop pass.
        * tree-ssa-forwprop.c (struct phiprop_d): New structure.
        (phivn_valid_p): New helper function.
        (phiprop_insert_phi): Likewise.
        (propagate_with_phi): Likewise.
        (tree_ssa_phiprop): New propagator propagating loads
        through phi nodes if profitable.

2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-analyze.c (process_use): New function.
        (vect_mark_stmts_to_be_vectorized): Factor out code to process_use.
        Check phis in all bbs.
        * tree-vectorizer.c (vect_is_simple_use): Remove a no longer relavant
        assert.

2007-04-18  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload1.c (eliminte_regs_in_insn): Use REG_EQUIV notes the same way
        we use REG_EQUAL.

2007-04-17  Anatoly Sokolov <aesok@post.ru>

        PR target/30483
        * config/avr/avr.c (ptrreg_to_str): Replace gcc_unreachable() with
        error().

2007-04-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (sse_vmaddv4sf3): Use register_operand
        on "0".
        (sse_vmmulv4sf3): Likewise.
        (sse2_vmaddv2df3): Likewise.
        (sse2_vmmulv2df3): Likewise.

2007-04-17  Zdenek Dvorak  <dvorakz@suse.cz>

        PR rtl-optimization/31360
        * cfgloopanal.c (target_small_cost, target_pres_cost): Removed.
        (target_reg_cost): New.
        (init_set_costs): Initialize target_reg_cost.  Add comments
        regarding the rationale of the costs.
        (global_cost_for_size): Renamed to...
        (estimate_reg_pressure_cost): ... and simplify.  Decrease importance
        of register pressure.
        * tree-ssa-loop-ivopts.c (ivopts_global_cost_for_size): Use
        estimate_reg_pressure_cost.  Add number of ivs.
        (determine_set_costs): Dump target_reg_cost.
        * loop-invariant.c (gain_for_invariant):  Use
        estimate_reg_pressure_cost.  Removed n_inv_uses argument.
        (best_gain_for_invariant, find_invariants_to_move): Remove
        n_inv_uses.
        * cfgloop.h (target_small_cost, target_pres_cost): Removed.
        (target_reg_cost): Declare.
        (global_cost_for_size): Declaration removed.
        (estimate_reg_pressure_cost): Declare.

2007-04-17  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Force TDmode
        regnos into even/odd register pairs.
        * config/rs6000/rs6000.h [SLOW_UNALIGNED_ACCESS]: Treat DDmode and
        TDmode similar to the other floating point modes.
        [SECONDARY_MEMORY_NEEDED]: Treat DDmode similar to DFmode.
        * config/rs6000/dfp.md (negdd2, absdd2, negtd2, abstd2): New
        define_expand's.
        (negdd2_fpr, absdd2_fpr, nabsdd2_fpr, negtd2_fpr, abstd2_fpr,
        nabstd2_fpr, movdd_hardfloat64_mfpgpr): New define_insn's.
        (movdd_hardfloat64): Use TARGET_MFPGPR.

2007-04-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload1.c (delete_output_reload): Don't count output in n_inherited.

        Revert
        2005-01-05  Richard Henderson  <rth@redhat.com>
        PR rtl-opt/10692
        * reload1.c (do_input_reload): Restrict the optimization deleteing
        a previous output reload to RELOAD_FOR_INPUT.

2007-04-17  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vectorizer.h (stmt_vec_info_type): Add enum value
        induc_vec_info_type.
        (vectorizable_induction): New function declaration.
        * tree-vect-transform.c (get_initial_def_for_induction): No need to
        check if already vectorized.  Find first place in BB where new stmts
        can be inserted.  Takes only one argument.
        (vectorizable_induction): New function.
        (vect_transform_stmt): Add case for induc_vec_info_type to call
        vectorizable_induction.
        (vect_transform_loop): Consider phis for vectorization.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Simplify
        condition.
        (analyze_operations): Call vectorizable_induction when analyzing phis.
        Fix comment.
        (vect_mark_stmts_to_be_vectorized): Remove redundant checks.
        (vect_mark_relevant): Include phis in relevance analysis.
        (vect_mark_stmts_to_be_vectorize): Likewise.
        * tree-vect-patterns.c (widened_name_p): Remove obsolete asserts.

2007-04-16  Lawrence Crowl  <crowl@google.com>

        * doc/invoke.texi (Debugging Options): Add documentation for the
        -femit-struct-debug options -femit-struct-debug-baseonly,
        -femit-struct-debug-reduced, and
        -femit-struct-debug-detailed[=...].

        * c-opts.c (c_common_handle_option): Add
        OPT_femit_struct_debug_baseonly, OPT_femit_struct_debug_reduced,
        and OPT_femit_struct_debug_detailed_.
        * c.opt: Add specifications for
        -femit-struct-debug-baseonly, -femit-struct-debug-reduced,
        and -femit-struct-debug-detailed[=...].
        * opts.c (set_struct_debug_option): Parse the
        -femit-struct-debug-... options.
        * opts.c (matches_main_base, main_input_basename,
        main_input_baselength, base_of_path, matches_main_base): Add
        variables and functions to compare header base name to compilation
        unit base name.
        * opts.c (should_emit_struct_debug): Add to determine to emit a
        structure based on the option.
        (dump_struct_debug) Also disabled function to debug this
        function.
        * opts.c (handle_options): Save the base name of the
        compilation unit.

        * langhooks-def.h (LANG_HOOKS_GENERIC_TYPE_P): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add.
        This hook indicates if a type is generic.  Set it by default
        to "never generic".
        * langhooks.h (struct lang_hooks_for_types): Add a new hook
        to determine if a struct type is generic or not.
        * cp/cp-tree.h (class_tmpl_impl_spec_p): Declare a C++ hook.
        * cp/tree.c (class_tmpl_impl_spec_p): Implement the C++ hook.
        * cp/cp-lang.c (LANG_HOOKS_GENERIC_TYPE_P): Override null C hook
        with live C++ hook.

        * flags.h (enum debug_info_usage): Add an enumeration to describe
        a program's use of a structure type.
        * dwarf2out.c (gen_struct_or_union_type_die): Add a new parameter
        to indicate the program's usage of the type.  Filter structs based
        on the -femit-struct-debug-... specification.
        (gen_type_die): Split into two routines, gen_type_die and
        gen_type_die_with_usage.  gen_type_die is now a wrapper
        that assumes direct usage.
        (gen_type_die_with_usage): Replace calls to gen_type_die
        with gen_type_die_with_usage adding the program usage of
        the referenced type.
        (dwarf2out_imported_module_or_decl): Suppress struct debug
        information using should_emit_struct_debug when appropriate.

2007-04-16  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31522
        * tree-vrp.c (vr_phi_edge_counts): New static variable.
        (vrp_initialize): Allocate vr_phi_edge_counts.
        (vrp_visit_phi_node): Don't push to infinity if we saw a new
        executable edge.  Drop test for all constants.
        (vrp_finalize): Free vrp_phi_edge_counts.

        * doc/cpp.texi (Common Predefined Macros): Clarify description of
        __GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

        * tree-ssa-propagate.c (cfg_blocks_add): Insert blocks with fewer
        predecessors at head rather than tail.

2007-04-16  Matthias Klose  <doko@debian.org>

        * config/alpha/linux.h (CPP_SPEC): Define.
        * config/arm/linux-gas.h (SUBTARGET_CPP_SPEC): Extend.

2007-04-16  Aldy Hernandez  <aldyh@redhat.com>

        * function.h: Remove sequence_stack extern declaration.

2007-04-16  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Change to 64 on
        TARGET_FIDOA.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Change to 64 if __mfido__ is
        defined.

2007-04-16  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_arch_types): Rearranging  array.
        (enum avr_arch): Add.
        (avr_mcu_types): Use avr_arch enumeration constants instead of
        numbers.
        * config/avr/avr.h (LINK_SPEC): Simplify.

2007-04-16  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_libcall_value,
        m68k_function_value): Use macros for register names more.

        * config/m68k/m68k.h (FRAME_POINTER_REGNUM): Use A6_REG
        instead.
        (M68K_REGNAME): Use A6_REG.
        * config/m68k/m68k.md (FP_REG): Rename to A6_REG.

2007-04-16  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR middle-end/28071
        * sched-int.h (struct deps): Split field 'pending_lists_length' into
        'pending_read_list_length' and 'pending_write_list_length'.  Update
        comment.
        * sched-deps.c (add_insn_mem_dependence): Change signature.  Update
        to handle two length counters instead of one.  Update all uses.
        (flush_pending_lists, sched_analyze_1, init_deps): Update to handle
        two length counters instead of one.
        * sched-rgn.c (propagate_deps): Update to handle two length counters
        instead of one.

2007-04-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/31582
        * config/i386/i386.c (ix86_expand_vec_set_builtin): Make a
        copy of source, pass it to ix86_expand_vector_set and return
        it as target.

2007-04-16  David Ung  <davidu@mips.com>
            Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.h (PROCESSOR_74KC, PROCESSOR_74KF,
        PROCESSOR_74KX, TUNE_74K, GENERATE_MADD_MSUB): Define.
        * config/mips/mips.c (mips_cpu_info_table, mips_rtx_cost_data):
        Add 74K processor information.
        * config/mips/mips.md: Include 74k.md.
        (cpu): Add 74kc,74kf,74kx.
        (ISA_HAS_MADD_MSUB): Change to GENERATE_MADD_MSUB throughout.
        * config/mips/74k.md: New.
        * doc/invoke.texi (MIPS Options): Document 74K support.

2007-04-16  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-analyze.c (vect_analyze_operations): Reorganize calls to
        vectorizable_* functions.
        * tree-vect-transform.c (vectorizable_call): Add check for
        STMT_VINFO_RELEVANT_P, STMT_VINFO_DEF_TYPE and STMT_VINFO_LIVE_P.
        (vectorizable_store): likewise.
        (vectorizable_conversion): Add check for STMT_VINFO_DEF_TYPE.
        Add comments.
        (vectorizable_operation, vectorizable_type_demotion): Likewise.
        (vectorizable_type_promotion, vectorizable_load): Likewise.
        (vectorizable_live_operation, vectorizable_condition): Likewise.
        (vectorizable_assignment): Add check for STMT_VINFO_DEF_TYPE and
        STMT_VINFO_LIVE_P.
        (vect_transform_stmt): Reorganize calls to vectorizable_* functions.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/linux.h (FUNCTION_VALUE_REGNO_P): Use macros for
        register numbers more.
        * config/m68k/m68k.h (STACK_POINTER_REGNUM,
        FRAME_POINTER_REGNUM, STATIC_CHAIN_REGNUM,
        M68K_STRUCT_VALUE_REGNUM, FUNCTION_VALUE, LIBCALL_VALUE,
        FUNCTION_VALUE_REGNO_P): Likewise.
        * config/m68k/m68kelf.h (M68K_STRUCT_VALUE_REGNUM,
        STATIC_CHAIN_REGNUM): Likewise.
        * config/m68k/m68kemb.h (FUNCTION_VALUE_REGNO_P): Likewise.
        * config/m68k/netbsd-elf.h (M68K_STRUCT_VALUE_REGNUM,
        STATIC_CHAIN_REGNUM, FUNCTION_VALUE_REGNO_P): Likewise.
        * config/m68k/m68k.md (FP_REG): New.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Prefer 32-bit
        alignment on fido.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/i386/i386.c, config/s390/s390.c, config/s390/s390.md,
        tree-ssa-loop-niter.c, tree-ssa-structalias.c, tree-vrp.c: Fix
        comment typos.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Ignore
        cold loops.

2007-04-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR c/31520
        * c-decl.c (finish_decl): Grab the type of the decl after the call
        to store_init_value.

2007-04-14  Steven Bosscher  <steven@gcc.gnu.org>

        * common.opt (fforward-propagate): Fix "Optimization" annotation.

2007-04-14  Jakub Jelinek  <jakub@redhat.com>

        PR c++/25874
        * omp-low.c (expand_omp_parallel): If child_cfun->cfg, free dominators,
        post dominators and cleanup cfg before returning.

2007-04-14  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (MODES_TIEABLE_P): Allow more modes to be tied.
        * config/bfin/bfin.md (movsi_insn): Delete two unused alternatives.

2007-04-14  Kazu Hirata  <kazu@codesourcery.com>

        * config.gcc: Recognize fido.
        * config/m68k/m68k-devices.def (fidoa): New.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define
        __mfido__.
        (FL_FIDOA, TARGET_FIDOA): New.
        * config/m68k/m68k.opt (mfidoa): New.

2007-04-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/31322
        * dwarf2out.c (output_call_frame_info): Call assemble_external_libcall
        when a personality function is used.

2007-04-13  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_expand_builtin): Use CALL_EXPR_FN.

2007-04-13  Mike Stump  <mrs@apple.com>

        * config/darwin-c.c (handle_c_option): Handle -fapple-kext here so
        we can...
        * config/darwin.opt (fapple-kext): Make C++ only.
        * config/darwin.c (darwin_override_options): Remove code to ensure
        -fapple-kext is given for C++ only.

2007-04-13  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/vxworks.h (SUBTARGET_OVERRIDE_OPTIONS): Define.
        * config/mips/mips.c (override_options): Call
        SUBTARGET_OVERRIDE_OPTIONS, if defined.

2007-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.opt (msvr3-shlib): Removed.

        * doc/invoke.texi: Remove -msvr3-shlib.

2007-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.opt (mpopcnt): Replace "popcount" instruction
        with "popcnt" instruction.

2007-04-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/21258
        * tree-vrp.c (compare_case_labels): New helper.
        (find_switch_asserts): New function.
        (find_assert_locations): Call it for SWITCH_EXPRs.

2007-04-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (X87_FLOAT_MODE_P): Check for TARGET_80387.
        * config/i386/i386.md (*cmpfp0): Remove check for TARGET_80387, this
        check is now implied in X87_FLOAT_MODE_P.
        (*cmpfp_u, *cmpfp_<mode>, *cmpfp_i_i387): Ditto.
        (*cmpfp_iu_387, fix_trunc<mode>_fisttp_i386_1): Ditto.
        (fix_trunc<mode>_i386_fisttp): Ditto.
        (fix_trunc<mode>_i387_fisttp_with_temp): Ditto.
        (*fix_trunc<mode>_i387_1, fix_truncdi_i387): Ditto.
        (fix_truncdi_i387_with_temp, fix_trunc<mode>_i387): Ditto.
        (fix_trunc<mode>_i387_with_temp, *fp_jcc_1_387): Ditto.
        (*fp_jcc_2_387, *fp_jcc_5_387, *fp_jcc_6_387): Ditto.
        (*fp_jcc_7_387, *fp_jcc_8<mode>_387): Ditto.
        (unnamed_splitters): Ditto.
        * config/i386/i386.c (function_value_32): Generate FIRST_FLOAT_REG
        for X87_FLOAT_MODE_P mode.  Override FIRST_FLOAT_REG with
        FIRST_SSE_REG for local functions when SSE math is enabled or
        for functions with sseregparm attribute.
        (standard_80387_constant_p): Return -1 if mode is not
        X87_FLOAT_MODE_P.
        (ix86_cc_mode): Assert that scalar mode is not DECIMAL_FLOAT_MODE_P.
        (ix86_expand_compare): Ditto.
        (ix86_expand_carry_flag_compare): Ditto.
        (ix86_expand_int_movcc): Check for SCALAR_FLOAT_MODE_P instead
        of FLOAT_MODE_P for cmp_mode and assert that cmp_mode is not
        DECIMAL_FLOAT_MODE_P.
        (ix86_preferred_output_reload_class): Use X87_FLOAT_MODE_P instead
        of SCALAR_FLOAT_MODE_P.
        (ix86_rtx_costs) [PLUS] Remove FLOAT_MODE_P and fall through to ...
        [MINUS]: ... here.  Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P
        checks before FLOAT_MODE_P.
        [MULT]: Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P checks
        before FLOAT_MODE_P.
        [DIV]: Ditto.
        [NEG]: Ditto.
        [ABS]: Ditto.
        [SQRT]: Ditto.
        [FLOAT_EXTEND]: Use SSE_FLOAT_MODE_P.

2007-04-12  Paolo Bonzini  <bonzini@gnu.org>
            Charles Wilson  <libtool@cwilson.fastmail.fm>

        * Makefile.in (stamp-as, stamp-collect-ld, stamp-nm): Remove.
        (libgcc.mvars): Don't depend on them.
        * configure.ac (as, collect-ld, nm): Create from exec-tool.in.
        * exec-tool.in: New.

2007-04-12  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/invoke.text (--help): Document --help=common.

2007-04-12  Thomas Neumann  <tneumann@users.sourceforge.net>

        * stub-objc.c (objc_build_keyword_decl): Avoid C++ keywords.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (insn-emit.o): Depend on $(INTEGRATE_H).
        * genemit.c (main): Emit #include "integrate.h".
        * config/mips/mips-protos.h (SYMBOL_HALF): New mips_symbol_type.
        (LOADGP_RTP): New mips_loadgp_style.
        * config/mips/mips.h: Include config/vxworks-dummy.h.
        (TARGET_RTP_PIC): New macro.
        (TARGET_USE_GOT): Return true for TARGET_RTP_PIC.
        (TARGET_USE_PIC_FN_ADDR_REG): Return true for TARGET_VXWORKS_RTP.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Emit function-relative case tables
        for TARGET_RTP_PIC.
        * config/mips/vxworks.h (SUBTARGET_ASM_SPEC): Define.  Pass down
        -mvxworks-pic when using -mrtp and a PIC option.
        * config/mips/mips.c (mips_classify_symbol): Return SYMBOL_GOT_DISP
        for RTP PIC.
        (mips_symbolic_constant_p, mips_symbolic_address_p)
        (mips_symbol_insns): Handle SYMBOL_HALF.
        (override_options): Warn about -G and -mrtp being used together.
        Initialize mips_lo_relocs[SYMBOL_HALF].
        (mips_current_loadgp_style): Return LOADGP_RTP for RTP PIC.
        (mips_emit_loadgp): Handle LOADGP_RTP.
        (mips_in_small_data_p): Return false for TARGET_VXWORKS_RTP.
        * config/mips/mips.md (loadgp_rtp): New insn and splitter.
        (tablejump): Handle function-relative case table entries if
        TARGET_RTP_PIC.
        * config/mips/predicates.md (symbol_ref_operand): New predicate.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.md (load_call<mode>): Allow any general register.
        destination.
        (sibcall_value_internal, sibcall_value_multiple_internal)
        (call_value_internal, call_value_split, call_value_multiple_internal)
        (call_value_multiple_split): Remove constraints from operand 0.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h: In comments, refer to loadgp_absolute
        rather than loadgp_noshared.
        * config/mips/mips.c (mips_emit_loadgp): Use gen_loadgp_absolute
        instead of gen_loadgp_noshared.  Use gen_loadgp_newabi instead of
        gen_loadgp.
        * config/mips/mips.md (loadgp): Rename to...
        (loadgp_newabi): ...this.
        (loadgp_noshared): Rename to...
        (loadgp_absolute): ...this.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c (mips_ok_for_lazy_binding_p): Always return
        false for locally-binding symbols.
        (mips_dangerous_for_la25_p): Check mips_global_symbol_p.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h (SYMBOL_GOT_LOCAL): Rename to...
        (SYMBOL_GOT_PAGE_OFST): ...this.
        (SYMBOL_GOT_GLOBAL): Rename to...
        (SYMBOL_GOT_DISP): ...this.
        (SYMBOL_GOTOFF_GLOBAL): Rename to...
        (SYMBOL_GOTOFF_DISP): ...this.  Update comments accordingly.
        * config/mips/mips.c (mips_global_symbol_p): New function.
        (mips_symbol_binds_local_p): Likewise.
        (mips_classify_symbol): Rename SYMBOL_GOT_GLOBAL to SYMBOL_GOT_DISP
        and SYMBOL_GOT_LOCAL to SYMBOL_GOT_PAGE_OFST.  Use mips_global_symbol_p
        and mips_symbol_binds_local_p.
        (mips_symbolic_constant_p, mips_symbolic_address_p, mips_symbol_insns)
        (override_options): Rename SYMBOL_GOT_GLOBAL to SYMBOL_GOT_DISP,
        SYMBOL_GOT_LOCAL to SYMBOL_GOT_PAGE_OFST and SYMBOL_GOTOFF_GLOBAL to
        SYMBOL_GOTOFF_DISP.
        (mips_ok_for_lazy_binding_p): New function.
        (mips_load_call_address, mips_expand_call): Use it.
        (mips_dangerous_for_la25_p): Likewise.
        * config/mips/mips.md (*xgot_hi<mode>, *xgot_lo<mode>)
        (*got_disp<mode>): Use got_disp_operand instead of
        global_got_operand.  Use SYMBOL_GOTOFF_DISP instead of
        SYMBOL_GOTOFF_GLOBAL.
        (*got_page<mode>): Use got_page_ofst_operand instead of
        local_got_operand.
        * config/mips/predicates.md (const_call_insn_operand): Use
        SYMBOL_GOT_DISP instead of SYMBOL_GOT_GLOBAL.
        (global_got_operand): Rename to...
        (got_disp_operand): ...this and use SYMBOL_GOT_DISP instead of
        SYMBOL_GOT_GLOBAL.
        (local_got_operand): Rename to...
        (got_page_ofst_operand): ...this and use SYMBOL_GOT_PAGE_OFST instead
        of SYMBOL_GOT_LOCAL.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.h (TARGET_SPLIT_CALLS): Check
        TARGET_CALL_CLOBBERED_GP.
        (TARGET_SIBCALLS): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        (TARGET_USE_GOT, TARGET_CALL_CLOBBERED_GP): New macros.
        (TARGET_CALL_SAVED_GP, TARGET_USE_PIC_FN_ADDR_REG): Likewise.
        (STARTING_FRAME_OFFSET): Check TARGET_CALL_CLOBBERED_GP instead
        of TARGET_ABICALLS && !TARGET_NEWABI.
        (MIPS_CALL): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        * config/mips/mips.c (mips_load_call_address): Check
        TARGET_CALL_SAVED_GP instead of TARGET_NEWABI.
        (mips_global_pointer): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        Check TARGET_CALL_SAVED_GP instead of TARGET_NEWABI.
        (mips_save_reg_p): Check TARGET_CALL_SAVED_GP instead of
        TARGET_ABICALLS && TARGET_NEWABI.
        (mips_current_loadgp_style): Check TARGET_USE_GOT instead of
        TARGET_ABICALLS.
        (mips_expand_prologue): Check TARGET_OLDABI instead of !TARGET_NEWABI.
        (mips_expand_epilogue): Check TARGET_CALL_SAVED_GP instead of
        TARGET_ABICALLS && TARGET_NEWABI.
        (mips_output_mi_thunk): Check TARGET_USE_GOT instead of
        TARGET_ABICALLS.  Check TARGET_CALL_SAVED_GP instead of
        TARGET_NEWABI.  Use TARGET_USE_PIC_FN_ADDR_REG to decide
        whether indirect calls must use $25.
        (mips_extra_live_on_entry): Check TARGET_GOT instead of
        TARGET_ABICALLS.
        * config/mips/mips.md (jal_macro): Check flag_pic and
        TARGET_CALL_CLOBBERED_GP instead of TARGET_ABICALLS and TARGET_NEWABI.
        (builtin_setjmp_setup, builtin_longjmp): Check TARGET_USE_GOT
        instead of TARGET_ABICALLS.
        (exception_receiver): Check TARGET_CALL_CLOBBERED_GP instead of
        TARGET_ABICALLS && TARGET_OLDABI.
        (load_call<mode>): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        (sibcall): In the comment above the define_insn, mention
        TARGET_USE_PIC_FN_ADDR_REG instead of TARGET_ABICALLS.
        * config/mips/constraints.md (c): Check TARGET_USE_PIC_FN_ADDR_REG
        instead of TARGET_ABICALLS.

2007-04-12  Bernd Schmidt  <bernd.schmidt@analog.com>

        * doc/md.texi (Blackfin family constraints): Document PA and PB.
        * config/bfin/bfin.h (CONST_OK_FOR_P): Handle PA and PB.
        (MACFLAGS_MATCH_P): New macro.
        * config/bfin/bfin.c (print_operand): Handle MACFLAG_IS_M.
        (bfin_secondary_reload): Treat EVEN_AREGS and ODD_AREGS like AREGS.
        * config/bfin/bfin.md (MACFLAG_IS_M): New constant.  Renumber some of
        the other MACFLAG constants.
        (sum_of_accumulators, lshrpdi3, ashrpdi3): New patterns.
        (flag_machi): Tighten constraints.  Renumber some of the operands.
        (flag_machi_acconly): Tighten constraints.  Correct operand numbers in
        output template.
        (flag_machi_parts_acconly): New pattern.
        (flag_macinithi): Tighten constraints.  Allow any accumulator to be
        used.
        (flag_macinit1hi): Tighten constraints.
        (flag_mul_macv2hi_parts_acconly): New pattern.

        * config/bfin/lib1funcs.asm (___umulsi3_highpart, __smulsi3_highpart):
        Use a more efficient implementation.
        * config/bfin/bfin.md (umulsi3_highpart, smulsi3_highpart): Emit
        inline sequences when not optimizing for size.

        * config/bfin/bfin.md (movhi_low2high, movhi_high2high, movhi_low2low,
        movhi_high2low): Delete, merge functionality into...
        (packv2hi): ... this pattern.

        2007-02-11  Jie Zhang  <jie.zhang@analog.com>
        * config/bfin/bfin.opt (msim): New option.
        (mcpu=): New option.
        * config/bfin/bfin-protos.h (enum bfin_cpu): New.
        (bfin_cpu_t): Typedef of enum bfin_cpu.
        (bfin_cpu_type): New declaration.
        * config/bfin/elf.h (STARTFILE_SPEC): Add support for
        -msim and -mcpu= options.
        (LIB_SPEC): Likewise.
        * config/bfin/bfin.c (bfin_cpu_type): Define.
        (bfin_handle_option): Handle -mcpu= option.
        * config/bfin/bfin.h (DEFAULT_CPU_TYPE): Define as BFIN_CPU_BF532.
        (TARGET_CPU_CPP_BUILTINS): Define __ADSPBF531__, __ADSPBF532__,
        __ADSPBF533__ or __ADSPBF537__ according to the cpu type.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (*-*-vxworks*): Don't add to tm_files in this stanza.
        (arm-wrs-vxworks, mips-wrs-vxworks, powerpc-wrs-vxworks)
        (powerpc-wrs-vxworksae): Use ${tm_file}.
        (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add svr4.h
        after elfos.h.  Remove i386/sysv4.h and add i386/vx-common.h.
        * config/i386/vx-common.h: New file.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_STARTFILE_SPEC): Use -l:crt0.o instead
        of crt0.o%s.

2007-04-12  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("trunctddd2"): Use TDmode for the target of
        ldxtr.

2007-04-12  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/31078
        PR c++/31103
        * c-common.c (c_build_qualified_type): Set canonical type
        appropriately.

2007-04-12  Richard Guenther  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Print ARRAY_REF
        lower bound and element size if lower bound is not zero
        or either of the ARRAY_REF operands is set.

2007-04-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/24689
        PR tree-optimization/31307
        * fold-const.c (operand_equal_p): Compare INTEGER_CST array
        indices by value.
        * gimplify.c (canonicalize_addr_expr): To be consistent with
        gimplify_compound_lval only set operands two and three of
        ARRAY_REFs if they are not gimple_min_invariant.  This makes
        it never at this place.
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Likewise.

2007-04-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (pa_som_asm_init_sections): Ensure that cfun->machine is not
        null before emitting a .nsubspa directive.

2007-04-11  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-alias.c (dump_mem_ref_stats): Do not call
        need_to_partition_p if there are no memory statements in the
        function.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-data-ref.c (chrec_steps_divide_constant_p): Removed.
        (gcd_of_steps_may_divide_p): New function.
        (analyze_miv_subscript): Use gcd_of_steps_may_divide_p.

2007-04-11  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload.c (find_reloads_toplev, find_reloads_address,
        find_reloads_address_1, find_reloads_subreg_address): Use rtx_equal_p,
        not a pointer equality test, to decide if we need to call
        push_reg_equiv_alt_mem.

2007-04-11  Sebastian Pop  <sebastian.pop@inria.fr>

        * tree-data-ref.c (affine_function_zero_p, constant_access_functions,
        insert_innermost_unit_dist_vector, add_distance_for_zero_overlaps): New.
        (build_classic_dist_vector): Call add_distance_for_zero_overlaps.