2006-01-31 Richard Guenther <rguenther@suse.de>

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

2006-01-31  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-msselibm): Document.
        * target.h (expand_library_builtin): New target hook.
        * builtins.c (expand_builtin): Use expand_library_builtin.
        (default_expand_library_builtin): New function.
        * gcc.c (LINK_GCC_MATH_SPEC): Define.
        (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
        (link_gcc_math_spec): Declare.
        (static_specs): Add link_gcc_math_spec.
        * expr.h (default_expand_library_builtin): Declare.
        * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
        * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
        * config/i386/i386.opt (msselibm): New target option.
        * config/i386/i386.c (ix86_builtin_function_variants): New array.
        (ix86_init_sse_abi_builtins): New function.
        (ix86_expand_library_builtin): Likewise.
        (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
        (override_options): Handle error conditions wrt -msselibm.
        (ix86_builtins): Add function codes for SSE2 ABI builtins.
        (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
        * doc/extend.texi (__builtin_sse2_*): Document new target specific
        builtins.

2006-01-31  Richard Guenther  <rguenther@suse.de>
        Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi (--disable-libgcc-math): Document.

2006-01-30  Marcin Dalecki  <martin@dalecki.de>

        * expr.h (expand_normal): new inline function.
        * builtins.c: use it, use EXPAND_NORMAL explicitely.
        * dojump.c: use it.
        * dwarf2out.c: use it.
        * expr.c: use it.
        * calls.c: use it.
        * expmed.c: use it.
        * except.c: use it.
        * config/sparc/sparc.c: use it.
        * config/i386/i386.c: use it.
        * config/rs6000/rs6000.c: use it.
        * config/arm/arm.c: use it.
        * config/mips/mips.c: use it.
        * stmt.c: use it, use EXPAND_NORMAL explicitely.

2006-01-30  Roger Sayle  <roger@eyesopen.com>

        * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
        argv to the appropriate type.

2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
        unreachable code.

2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/26018
        * config/s390/s390.c (struct machine_function): New flag
        decomposed_literal_pool_addresses_ok_p.
        (s390_reorg): Set it before final stage of literal pool transforms.
        (s390_decompose_address): Only accept displacements of the form
        (minus (label_ref ...) (label_ref ...)) if that flag is set.

2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>

        * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
        the comparison routine return.

2006-01-30  Michael Matz  <matz@suse.de>

        * global.c (find_reg): Only evict for global regs.
        Take n_refs into account and dump more info.

2006-01-30  J"orn Rennecke <joern.rennecke@st.com>

        PR target/14798:
        * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
        (pragma_trap, pragma_nosave_low_regs): Likewise.
        (current_function_anonymous_args): Likewise.
        (sh_deferred_function_attributes): New variable.
        (sh_deferred_function_attributes_tail): Likewise.
        (print_operand): For '@', look up trap_exit attribute.
        (calc_live_regs): Look up trapa_handler attribute.  For trapa
        handlers, save/restore fpscr, but don't do any other
        interrupt-specific saves.
        Don't save r0..r7 if the nosave_low_regs attribute is in effect.
        Fix check for partially saved registers to check for SHmedia.
        (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
        (sh_output_function_epilogue): Don't clear any of the removed
        variables.
        (sh_insert_attributes): Don't check pragma_interrupt.
        Insert deferred attributes.  Check that interrupt attribute is
        present for other attributes that require its presence.
        (sh_attribute_table): Add new attributes trapa_handler and
        nosave_low_regs.
        (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
        Don't check for pragma_interrupt.  Don't store argument.
        * sh.h (pragma_interrupt, sp_switch): Don't declare.
        (sh_deferred_function_attributes): Declare.
        (sh_deferred_function_attributes_tail): Likewise.
        * sh.md (sp_switch_1): Add operand.  Change generator caller.
        (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
        (*return_i): Don't use when trap_exit attribute is in effect.
        (*return_trapa): New insn pattern.
        * sh-c.c: New file.
        * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
        setting c_target_objs and cxx_target_objs.
        * t-sh: Add rule for sh-c.o.

2006-01-30  Richard Guenther  <rguenther@suse.de>

        PR c++/23372
        * gimplify.c (gimplify_target_expr): Handle easy cases
        without creating a temporary.

2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>

        * vec.h (safe_grow): Remove duplicated line.

2006-01-29  Diego Novillo  <dnovillo@redhat.com>

        PR 25874
        * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
        (expand_omp): ... here.
        (expand_omp_parallel): Only remove barriers for combined
        parallel+workshare constructs.

2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>

        Revert

        2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
        * tree.c (build_qualified_type): Chain the new type to the original
        type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
        a POINTER_TYPE or a REFERENCE_TYPE respectively.
        (build_pointer_type_for_mode): Only return unqualified types.
        (build_reference_type_for_mode): Likewise.

2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>

        * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
        * Makefile.in (CXX_COMPAT_WARN): Define.
        * configure: Regenerate.

2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-opt/25911
        * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
        to an if check.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        * toplev.c: Fix thinko.

2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
            Marcin Dalecki  <martin@dalecki.de>

        * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
        (push_srcloc): Use XNEW.
        (init_asm_output, default_get_pch_validity): Use XNEWVEC.

2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-core.c (df_set_blocks): Deleted all variable.

2006-01-28  Ian Lance Taylor  <ian@airs.com>

        * cgraphunit.c (cgraph_assemble_pending_functions): Call
        cgraph_output_pending_asms.

2006-01-28  Zack Weinberg  <zackw@panix.com>

        * c.opt: Add -W(no-)overlength-strings.
        * doc/invoke.texi: Document it.
        * c-opts.c (c_common_handle_option): -pedantic implies
        -Woverlength-strings, if not explicitly disabled already.
        (c_common_post_options): -Woverlength-strings defaults to off, and
        is always off for C++.
        * c-common.c (fix_string_type): Issue warning about strings longer
        than is portable only if warn_overlength_strings.  Rearrange code
        a little for clarity.
        * configure.in: Check for -Wno-overlength-strings as well before
        enabling -pedantic in stage 1.
        * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
        (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.

        * genconditions.c (write_header, write_one_condition)
        (write_conditions, write_writer): Consolidate very long strings
        that were broken up to fit in C89 portable limit.  Don't use
        printf when fputs will do.

2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_comparison <AND>): Check
        TRULY_NOOP_TRUNCATION before start using a subreg.

        * config/mips/mips.md (*branch_zero<mode>,
        *branch_zero<mode>_inverted, *branch_equality<mode>,
        *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
        Remove mode check from comparisons.

2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>

        * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

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

        * recog.c (validate_replace_rtx_subexp): Remove.
        * recog.h: Remove the prototype for
        validate_replace_rtx_subexp.

        * integrate.h: Remove the prototype for
        copy_decl_for_inlining.
        * rtl.h: Remove the prototype for mark_constant_function.
        * tree-vectorizer.h: Remove the prototype for
        vect_strip_conversion.

        * modulo-sched.c (create_partial_schedule,
        free_partial_schedule, reset_partial_schedule): Make them
        static.

        * hooks.c (hook_bool_rtx_int_false): Remove.
        * hooks.h: Remove the prototype for hook_bool_rtx_int_false.

2006-01-28  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
        and -mlong-double-128 are incompatible.
        * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
        * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
        (TARGET_LIBGCC2_CFLAGS): Define.
        * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
        (TARGET_LIBGCC2_CFLAGS): Same.
        * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.

2006-01-28  Kazu Hirata  <kazu@codesourcery.com>

        PR c/19606.
        * c-typeck.c (build_binary_op): Perform implicit casts of
        operands before shortening them.

        * cfgloopmanip.c (split_loop_bb): Remove.
        * cfgloop.h: Remove the prototype for split_loop_bb.

        * cfgloop.c (flow_loop_outside_edge_p): Remove.
        * cfgloop.h: Remove the prototype for
        flow_loop_outside_edge_p.

        * emit-rtl.c (init_virtual_regs): Make it static.
        * function.h: Remove the prototype for init_virtual_regs.

        * recog.c (peephole2_optimize): Make it static.
        * recog.h: Remove the prototype for peephole2_optimize.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        * df-scan.c (df_record_entry_block_defs): Check if
        INCOMING_RETURN_ADDR_RTX is defined.

2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/24762
        * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
        * targhooks.c (hook_void_bitmap): New hook prototype.
        * targhoohs.h (hook_void_bitmap): Ditto.
        * bitmap.h (bitmap_head_def): Moved to coretypes.h.
        * coretypes.h (bitmap_head_def): Moved from bitmap.h.
        * target.h (live_on_entry): New function pointer.
        * df-scan.c (df_all_hard_regs): Removed.
        (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
        (df_scan_free_internal): Added df->entry_block_defs.
        (df_scan_alloc): Ditto.
        (df_scan_dump): Ditto.
        (df_uses_record): Plumbed flag field properly thru calls.
        Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
        This part fixes PR24762.
        (df_bb_refs_record): Added code to make the frame and arg
        pointers live in EH blocks.
        (df_refs_record): Added call to df_record_entry_block_defs.
        (df_record_entry_block_defs): New function.
        * df-core.c: Added comments to describe new artifical defs.
        * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
        (entry_block_defs): New field in struct df.
        (df_all_hard_regs): Deleted.
        * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
        * df-problems.c (df_ru_bb_local_compute_process_def):
        Added code to handle artifical defs in the entry to a function.
        (df_ru_bb_local_compute): Ditto.
        (df_rd_bb_local_compute_process_def):  Ditto.
        (df_rd_bb_local_compute): Ditto.
        (df_lr_bb_local_compute): Ditto.
        (df_ur_bb_local_compute): Ditto.
        (df_urec_bb_local_compute):  Ditto.
        (df_chain_create_bb):  Ditto.
        (df_ur_local_finalize): Removed entry.
        (df_urec_init): Ditto.
        (df_urec_local_finalize): Ditto.
        (df_ri_bb_compute): Added detection of last use of pseudos.
        * Makefile.in (df-scan.o): Updated dependencies.
        * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
        * config/mips/mips.c (mips_set_live_on_entry): Added.
        * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
        for target hook.
        * dce.c (marked_insn_p): Added code to handle artifical defs.

2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
        intrinsic.
        (_mm_cvtsi128_si64): Likewise.
        (_mm_cvtsd_si64): Likewise.
        (_mm_cvttsd_si64): Likewise.
        (_mm_cvtsi64_sd): Likewise.
        (_mm_cvtsi64_si128): Likewise.
        * config/i386/mmintrin.h (_m_from_int64): Likewise.
        (_mm_cvtsi64_m64): Likewise.
        (_m_to_int64): Likewise.
        (_mm_cvtm64_si64): Likewise.
        * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
        (_mm_cvttss_si64): Likewise.
        (_mm_cvtsi64_ss): Likewise.
        (_mm_cvtss_f32): Likewise.

2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>

        * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
        for pragma redefine_extname.

2006-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/25864
        * libgcc-std.ver: Add GCC_4.1.0 symbol version.
        * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
        -mno-minimal-toc to previous content.
        (bispecs): Remove goal.
        * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
        * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
        compatibility aliases on powerpc-*-*gnu*.
        * config/rs6000/libgcc-ppc-glibc.ver: New file.
        * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
        libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
        (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
        (ldblspecs): New goal.
        * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
        * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
        _df_to_tf.
        * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
        L_sf_to_tf or L_df_to_tf is defined.

2006-01-27  David Edelsohn  <edelsohn@gnu.org>
            Alan Modra  <amodra@bigpond.net.au>

        PR target/25864
        * config/rs6000/linux.h (POWERPC_LINUX): Define.
        * config/rs6000/linux64.h (POWERPC_LINUX): Define.
        * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
        * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
        * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
        * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
        (rs6000_override_options): Initialize rs6000_ieeequad.
        Initialize TFmode format to ibm_extended_format if not
        TARGET_IEEEQUAD.
        (rs6000_handle_option): Accept -mabi= ibmlongdouble and
        ieeelongdouble.
        (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
        (rs6000_return_in_memory): Only return IEEEQUAD in memory.
        (function_arg_advance): IBM long double passed in two FPRs, not
        split.
        (function_arg): IBM long double passed in FPRs.
        (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
        (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
        Only multireg GPR aligned.
        (rs6000_init_libfuncs): Enable IBM long double functions if not
        IEEEQUAD.
        (rs6000_generate_compare): Use IBM long double compare if not
        TARGET_IEEEQUAD.
        * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
        (TARGET_IEEEQUAD): Define.
        (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
        not TARGET_IEEEQUAD.
        * config/rs6000/rs6000.md: Enable TFmode patterns if
        !TARGET_IEEEQUAD.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
        * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
        and -mlong-double-128 are incompatible.
        * doc/invoke.texi (-mabi): Collect options together.  Add
        ibmlongdouble and ieeelongdouble.

2006-01-27  Richard Sandiford  <richard@codesourcery.com>

        * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
        opaque type.
        * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
        * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
        (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
        * rtl.h (rtunion_def): Remove rt_ptr.
        (X0PTR): Delete.
        (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
        (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
        * config/i386/winnt.c (i386_pe_mark_dllexport)
        (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.

2006-01-27 Gabor Loki <loki@gcc.gnu.org>

        * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.

2006-01-26 Alexandre Oliva  <aoliva@redhat.com>

        PR other/24829
        PR target/24831
        * gthr-dce.h: Do not gthrw-ify pthread_once_init,
        pthread_key_delete.  From John David Anglin.  gthrw-ify
        pthread_getunique_np only if it it's not a macro.  Delete
        UNUSED macro.
        (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
        __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
        __gthread_objc_condition_signal, __gthread_key_delete): Add
        "__attribute__ ((__unused__))" to unused arguments.
        (__gthread_recursive_mutex_init_function): Add missing return.
        * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
        gthr-posix95.h: Use macro-based approach for name redirection
        on targets missing weakref.

2006-01-26  Zack Weinberg  <zackw@panix.com>

        * genconditions.c (write_header): In generated code, #ifdef out
        all includes and fake declarations, except includes of bconfig.h
        and system.h, unless GCC_VERSION >= 3001.  Do not include
        gensupport.h in any case.
        (write_conditions): Generate a definition of struct c_test.  Add
        a comment to the generated #endif.
        (write_one_condition): Escape backslashes in string too.
        (write_writer): Generated code must escape backslashes and quote
        marks (but not newlines) in the strings it writes.
        * Makefile.in (build/gencondmd.o): Update dependencies.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/25961
        * Makefile.in (insn-automata.o): Add header file dependencies.
        * genautomata.c: Add includes.

2006-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/25961
        * Makefile.in (insn-automata.o): Add -Wno-error flag.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Expect target tools paths to be passed from the toplevel
        and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
        AS_SET_VAR_IF.
        * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.

2006-01-26  Alexandre Oliva  <aoliva@redhat.com>

        PR c/25892
        * c.opt (Wpointer-sign): Init to -1.
        * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
        OPT_pedantic, to 0 otherwise.
        * doc/invoke.texi: Update.

2006-01-26  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
        constants provided by 80387 instructions in the destination mode.

2006-01-26  Richard Guenther  <rguenther@suse.de>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/21470
        partial PR tree-opt/17064
        * tree-ssa-structalias.c (intra_create_variable_infos):
        Create heap variables for incoming parameters if
        flag_argument_noalias > 1.
        (find_what_p_points_to): Look through default defs of
        parameter decls.

2006-01-26  Jeff Law  <law@redhat.com>

        PR ada/25900
        * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
        with a VR_ANTI_RANGE and the VR_ANTI_RANGEis completely contained
        within the VR_RANGE, use the VR_RANGE as the result, not the
        VR_ANTI_RANGE.
        (adjust_range_with_scev): Reject ranges from SCEV which are out
        of bounds for the type.

2006-01-26  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (maybe_create_global_var): Change
        subvar walking to an assertion that we don't have subvar'd variables.

2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>

        PR C/25861
        * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
        Use a new variable, inner.  PARM_DECLs are always non-weak.

2006-01-26  Shantonu Sen  <ssen@opendarwin.org>

        * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
        --disable-checking.

2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (*clear_upper32): New combiner pattern.

2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>

        * arm.md (smaxsi3, sminsi3): Convert to define_expand.
        (smax_insn, smin_insn, smax_0, smin_0): New.

2006-01-26  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25947
        * config/cris/cris.c (cris_order_for_addsi3): New function.
        * config/cris/cris-protos.h: Prototype it.
        * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
        (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
        (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
        (split for "op.S1 [rx=rx+i],ry (swapped)")
        (split for "op(s|u).S1 [rx=rx+i],ry")
        (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
        Apply cris_order_for_addsi3 when generating addsi3 insns.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

        * tree.h (TREE_RANGE_CHECK): Fix range predicate.
        (TREE_BLOCK): Add call to EXPR_CHECK.

2006-01-25  Diego Novillo  <dnovillo@redhat.com>

        PR 25886
        * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
        * tree-pretty-print.c (dump_omp_clause): Extract from ...
        (dump_omp_clauses): ... here.
        (dump_generic_node): Handle OMP_CLAUSE.
        * tree.c (omp_clause_num_ops): New.
        (omp_clause_code_name): New.
        (tree_code_size): Handle OMP_CLAUSE.
        (tree_size): Likewise.
        (make_node): Document handling of OMP_CLAUSE.
        (tree_node_structure): Handle OMP_CLAUSE.
        (omp_clause_check_failed): New.
        (omp_clause_range_check_failed): New.
        (omp_clause_operand_check_failed): New.
        (build_omp_clause): New.
        (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
        * tree.h (enum omp_clause_code): Declare.
        (OMP_CLAUSE_SUBCODE_CHECK): Define.
        (OMP_CLAUSE_RANGE_CHECK): Define.
        (OMP_CLAUSE_ELT_CHECK): Define.
        (omp_clause_check_failed): Declare.
        (omp_clause_operand_check_failed): Declare.
        (omp_clause_range_check_failed): Declare.
        (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
        (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
        (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
        (OMP_CLAUSE_LASTPRIVATE): Likewise.
        (OMP_CLAUSE_IF_EXPR): Likewise.
        (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
        (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
        (OMP_CLAUSE_REDUCTION_CODE): Likewise.
        (OMP_CLAUSE_REDUCTION_INIT): Likewise.
        (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
        (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
        Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
        (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
        (OMP_CLAUSE_DEFAULT_KIND): Likewise.
        (OMP_CLAUSE_CODE): Define.
        (OMP_CLAUSE_SET_CODE): Define.
        (OMP_CLAUSE_CODE): Define.
        (OMP_CLAUSE_OPERAND): Define.
        (struct tree_omp_clause): Declare.
        (union tree_node): Add field 'omp_clause'.
        * treestruct.def (TS_OMP_CLAUSE): Define.
        * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
        OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
        OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
        OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
        OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
        OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
        (OMP_CLAUSE): Define.
        * print-tree.c (print_node): Handle OMP_CLAUSE.
        * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
        * c-typeck.c: Likewise.
        * gimplify.c: Likewise.
        * c-omp.c: Likewise.
        * tree-nested.c: Likewise.
        * tree-inline.c: Likewise.
        * c-parser.c: Likewise.
        * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
        clauses.

2006-01-25  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/25703
        * combine.c (try_combine): Handle zero_extract and strict_low_part
        of non-lowpart SUBREGs for constant reg_subword_p set optimization.

2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>

        * global.c: Fix comment typos.

2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25758
        * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
        Use output_addr_const instead of assemble_name.

2006-01-25  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (sched-vis.o): Update dependencies.
        * haifa-sched.c (sched_finish): Clear current_sched_info.
        * cfg.c (dump_bb_info): New, split from dump_flow_info.
        (dump_flow_info): Call it.
        * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
        a slim RTL dump.
        * basic-block.h (dump_bb_info): Declare.
        * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
        option, and apply options only for dump files whose TDF_RTL,
        TDF_TREE, or TDF_IPA bits match.
        * rtl.h: Declare new functions exported from sched-vis.c.
        * sched-vis.c: Enable also if scheduling is not used.
        (print_value): Print the mode of registers if not inside scheduling.
        (print_insn): Make it work outside the scheduler.  Beautify the output
        a bit.
        (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

        * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
        * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
        a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
        depending on the value of CONSTANT_POOL_ADDRESS_P.
        * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
        SYMBOL_REF_DECL.
        * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        (rtx_constant_pool): Remove const_rtx_sym_htab.
        (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
        (init_varasm_status): Don't initialize const_rtx_sym_htab.
        (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
        Remove handling of const_rtx_sym_htab.
        (find_pool_constant): Delete.
        (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
        rather than find_pool_constant.
        (get_pool_constant_for_function): Delete.
        (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
        find_pool_constant.
        * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
        (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
        (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
        (SYMBOL_REF_CONSTANT): New macro.
        (get_pool_constant_for_function): Delete.
        * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        (i386_pe_mark_dllimport): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
        rather than SYMBOL_REF_DECL.
        * config/darwin.c (machopic_indirect_data_reference): Likewise.
        (machopic_indirect_call_target): Likewise.

2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>

        * flow.c (delete_noop_moves): Add missing EOL to dump message.

2006-01-25  Richard Sandiford  <richard@codesourcery.com>

        * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.

2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.

2006-01-24  David Daney  <ddaney@avtrex.com>

        PR java/25816
        * configure.ac (enable_tls): New enable option.
        (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
        * configure: Regenerate.
        * doc/install.texi (--enable-tls): Document new option.
        (--disable-tls): Ditto.

2006-01-24  Richard Henderson  <rth@redehat.com>

        * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
        * alias.c (true_dependence): Respect it.
        (canon_true_dependence, write_dependence_p): Likewise.
        * builtins.c (get_builtin_sync_mem): Set it.

2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
        efficient way.

2006-01-24  DJ Delorie  <dj@redhat.com>

        * expmed.c (store_bit_field): Don't arbitrarily deny using insv
        for storing constants in single-bit bitfields.

2006-01-25  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.

2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25860
        * tree-ssa-pre.c (phi_translate): Return NULL
        for AGGREGATE_TYPE's.

2006-01-24  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (process_state_for_insn_equiv_partition):
        Use xcalloc for insn_arcs_array.
        * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
        (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.

2006-01-24  Richard Henderson  <rth@redhat.com>

        * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
        update all callers.

2006-01-23  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/25890
        PR rtl-optimization/25905
        * combine.c (expand_compound_operation, expand_field_assignment):
        Fail if the bitfield's final position is out of bounds.

2006-01-24  Ian Lance Taylor  <ian@airs.com>

        PR middle-end/25930
        * cgraphunit.c (cgraph_output_in_order): Don't clear
        cgraph_asm_nodes until after asm strings have been output.

2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>

        * fix-header.c (read_scan_file): Add new parameter imultilib when
        calling register_include_chains.

2006-01-23  Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c: Update documentation.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
            Daniel Berlin  <dberlin@dberlin.org>

        PR tree-opt/25315
        PR tree-opt/25857
        * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
        return from the function.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * rtl.def (match_code): Add second argument.
        * genpreds.c (write_extract_subexp): New function.
        (write_match_code): Add path argument.  Use write_extract_subexp.
        (write_predicate_expr): Pass path to write_match_code.
        (mark_mode_tests): MATCH_CODE applied to a subexpression does
        not perform a mode test.
        * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
        a subexpression does not constrain the top-level code set.
        * read-rtl.c (read_rtx_variadic): New function.
        (read_rtx_1): Use it; allow AND and IOR to be variadic.
        * doc/md.texi: Document new notation.
        * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
        (cmpsi_operand): ... here, using new notation.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * varray.c: Remove GENERATOR_FILE #ifdefs.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (output_reserved_units_table): Emit nothing if
        description->query_units_num is zero.  Remove extra blank line.
        (output_cpu_unit_reservation_p): Short circuit
        if description->query_units_num is zero.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
        and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
        nor any of the random handful of variables that used to be necessary
        when this program was linked with rtlanal.o.  Prune set of forward
        function declarations.
        (struct attr_desc): Remove static_p field.
        (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
        (check_attr_test, make_internal_attr, make_numeric_value): Make static.
        (attr_string): Do not read the character one past the length of
        the string.
        (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
        (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
        (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
        (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
        (make_automaton_attrs): New.
        (main): Do not call into genautomata.  Call local gen_bypass
        and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
        Remove special case for insn_alts.
        * genautomata.c: Include gensupport.h; not genattrtab.h nor
        varray.h (leftover from previous change).  Prune set of forward
        function declarations.  Remove state_alts fields from all
        structures.  Remove state_alts_table from struct automaton.
        Make everything except main static.  Do not maintain num_dfa_decls.
        Do not maintain state_alts fields of various structures.
        (process_decls): Don't validate condexp for dm_insn_reserv decls.
        (add_arc): Remove state_alts argument.  All callers updated.
        (output_reserved_units_table): Emit #ifdef here...
        (output_tables): ...not here.  Don't generate state_alts tables.
        (expand_automata): Don't generate attributes.
        (write_automata): Don't generate state_alts functions.
        (main): New function.
        (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
        (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
        (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
        (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
        (BYPASS_P_FUNC_NAME, output_state_alts_table)
        (output_automata_list_state_alts_code, output_internal_state_alts_func)
        (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
        (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
        Delete.
        * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
        * genattrtab.h: Delete file.
        * Makefile.in (OBJS-common): Add insn-automata.o.
        (insn-automata.o): New rule.
        (simple_generated_c): Add insn-automata.c.
        (build/genattrtab.o, build/genautomata.o): Update dependencies.
        (genprogmd): Add automata.
        (build/genattrtab): Needs no extra objects nor libraries.
        (build/genautomata): Needs build/vec.o and -lm.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
        (output_dfa_max_issue_rate, locked_states_num): Delete.
        (struct automaton): Add locked_states field.
        (output_dead_lock_vect): Save number of locked states in
        automaton->locked_states.  If it is zero, don't print anything.
        (output_max_insn_queue_index_def): Define max_insn_queue_index const.
        (output_internal_dead_lock_func): Only test the dead_lock_vect
        for automata that have locked states.
        (output_statistics): Always print the number of locked states for
        each automaton.  Calculate total number of locked states here.
        (write_automata): Don't call output_dfa_max_issue_rate.
        * genattrtab.c: Define length_unit_log as a const variable.
        * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
        max_insn_queue_index const.
        * final.c (length_unit_log): Declare const.
        * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genautomata.c:  Include vec.h, not varray.h.
        Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
        VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
        VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
        VEC_* macros operating on appropriately typed vectors, or to
        malloced arrays when the size is known in advance.  Const-ify
        many char* variables and function arguments.  No functional changes.
        * Makefile.in (build/varray.o): Delete rule.
        (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
        (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * gensupport.c: Define get_insn_name and record_insn_name here.
        (read_md_rtx): Call record_insn_name as appropriate.
        * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
        * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
        * genpreds.c, genrecog.c: Don't define get_insn_name nor
        record_insn_name.
        * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
        (BUILD_VARRAY): Delete.
        (genprognormal): Rename genprogmd.  Fold in all programs from
        genprognoprint; also attrtab.
        (build/genattrtab): Just mention genautomata.o and varray.o.
        Reorganize a bit, add comments to make the categories clearer.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genconditions.c (condition_table, add_condition): Delete.
        (write_conditions): Don't emit n_insn_conditions nor
        insn_elision_unavailable.  Issue the gcc version #ifdef here,
        inside the table, with no #else clause ...
        (write_header): ...not here.
        (write_writer): New function.
        (main): Don't initialize condition_table.  Use add_c_test.
        Call write_writer.
        * gensupport.c (init_md_reader_args_cb): Handle multiple input
        files on the command line.
        (maybe_eval_c_test): Don't check insn_elision_unavailable.
        Return -1 if there is no entry in the table, don't abort.
        (add_c_test, traverse_c_tests): New functions.
        * gensupport.h (insn_elision_unavailable, insn_conditions)
        (n_insn_conditions): Delete declarations.
        (add_c_test, traverse_c_tests): Declare.
        * read-rtl.c: Include gensupport.h.
        (read_conditions): New function.
        (read_rtx): If read_rtx_1 returns 0, treat as EOF.
        (read_rtx_1): If we get EOF when we were looking for an initial
        open paren, return 0.  Call read_conditions when appropriate.
        * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
        dummy-conditions.o.  Eliminate references to insn-conditions.o,
        or change them to build/gencondmd.o, as appropriate.  Remove
        insn-constants.h from $(simple_generated_h) and insn-conditions.c
        from $(simple_generated_c).  For all files remaining in those
        two lists, add insn-conditions.md to the generator command line.
        Give insn-constants.h/s-constants their own rules.  Add rules
        for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
        (build/read-rtl.o): Depend on gensupport.h.
        (genprognormal): Include preds.
        (genprogearly): Rename genprognoprint; only difference is now that
        they don't link with $(BUILD_PRINT).
        * dummy-conditions.c: Delete.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * genextract.c: Don't include insn-config.h.  Do include vec.h.
        Declare vectors of int, char, and locstr.
        (locstr): New typedef.
        (struct extraction): Make all array fields into bare pointers.
        (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
        (insn_code_number): Delete.
        (accum_extract): New struct.
        (VEC_safe_set_locstr, VEC_char_to_string): New functions.
        (gen_insn): Take insn_code_number as an argument.  Use an
        accum_extract structure instead of loading data directly into
        a struct extraction, and having to know how big it might get.
        (walk_rtx): Operate entirely on an accum_extract structure.
        (print_path): Avoid unnecessary use of printf.
        (print_header): New function, split out of main.  Distinguish
        more carefully between an unrecognizable insn and an insn that
        has the code number of a define_expand.
        (main): Pass insn_code_number to gen_insn.  Call print_header
        only after parsing.  Avoid unnecessary use of printf.
        * Makefile.in (build/vec.o): New rule.
        (build/genextract): Depend on build/vec.o.
        (build/genextract.o): Don't depend on insn-config.h.

2006-01-22  Zack Weinberg  <zackw@panix.com>

        * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
        $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
        practical.  Eliminate per-generator-program link rules.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/24437
        * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
        with a call expr to ...
        * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-01-23  Richard Guenther  <rguenther@suse.de>

        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
        before make_edge with conditional EDGE_TRUE_VALUE.

2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
        Jan Hubicka  <jh@suse.cz>
        Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/25654
        * cfgexpand.c (aggregate_contains_union_type): New function.
        (add_alias_set_conflicts): Call it.  Make sure to add conflicts
        for structure variables that contain a union type.

2006-01-23  Richard Sandiford  <richard@codesourcery.com>

        * gengtype.c (new_structure): Return the structure.
        (create_option): Add an extra "next" argument.
        (create_field): New function.
        (adjust_field_rtx_def): Use create_option and create_field.
        Remove a now-unnecessary call to find_structure.
        (adjust_field_tree_def): Likewise.
        (note_yacc_type): Remove an unnecessary call to find_structure.
        * gengtype.h (new_structure): Return the structure.
        (create_option): Add an extra argument.
        * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
        (option): Adjust calls to create_option.

2006-01-22  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix.h (STACK_BOUNDARY): Define.

2006-01-22  Paul Brook  <paul@codesourcery.com>
        Peter Barada  <peter@the-baradas.com>

        * config/m68k/m68k.md: Add Coldfire FPU support.
        Define FP mode macro and associated attributes.
        Use it for float mode patterns.
        * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
        (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
        (m68k_function_value): Ditto.
        (emit_move_sequence): Ditto.
        * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
        * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
        (MULTILIB_EXCEPTIONS): Ditto.
        * config/m68k/m68k.opt: Add mcfv4e.
        * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
        (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
        (m68k_output_function_prologue): Save ColdFire FPU registers.
        (m68k_output_function_epilogue): Restore ColdFire FPU registers.
        (force_mode, fp_reg_operand, emit_move_sequence): New functions.
        (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
        ColdFire FPU registers.
        (m68k_libcall_value, m68k_function_value): New functions.
        * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
        (LIBCALL_VALUE): Use m68k_libcall_value.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
        (MASK_COLDFIRE): Add MASK_CFV4E.
        (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
        (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
        (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
        (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
        (GO_IF_LEGITIMATE_ADDRESS): Use it.
        (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
        * doc/invoke.tex: Document -mcfv4e on m68k.

2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>

        * doc/contribute.texi: Change CVS to SVN and update the corresponding
        URL.

2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>

        PR c++/16190
        * c-opts.c (c_common_handle_option): Don't include
        -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
        * doc/invoke.texi (C++ Dialect Options): Document that
        -Wnon-virtual-dtor is no longer included in -Wall.

2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>

        * gcov.c (print_version), gcov-dump.c (print_version),
        mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
        dates.

2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (problem_SCAN): Added NULL reset function.
        (df_scan_reset_blocks): Added code to call reset block function
        (df_bb_refs_delete) Fixed comment.
        (df_insn_refs_delete): Made tolerant of deleting non existent info
        for dataflow problems that need to be reset.
        * df-core.c (df_set_blocks): Ditto.
        * df.h (struct df_problem): Added reset_fun.
        * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
        problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
        (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
        functions to clear out all references to def-use or use-def chains.

2006-01-21  Ben Elliston  <bje@au.ibm.com>

        * varasm.c (assemble_real): Initialise data array.

2006-01-20  Paul Brook  <paul@codesourcery.com>

        Merge from csl-arm-branch.
        2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
        * config/arm/arm.md (movdi): Force operands[1] to a register
        if we have a non-register source.
        (*arm_movdi, *movdf_soft_insn): Require that one of the
        operands be a register.
        * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
        * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.

2006-01-20  DJ Delorie  <dj@redhat.com>

        * varasm.c (initialize_constant_valid_p): Allow pointers
        initialized from integer constants of lesser precision.
        (output_constant): Allow non-int-sized pointer modes to be
        initialized from integer constants.

2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>

        PR libstdc++/25524
        * cppdefault.h (struct default_include): Add multilib flag.
        * cppdefault.c (cpp_include_defaults): Set it.
        * c.opt (-imultilib): New option.
        * c-opts.c (imultilib): New.
        (c_common_handle_option): Handle -imultilib.
        (c_common_post_options): Likewise.
        * c-incpath.c (add_standard_paths, register_include_chains):
        Likewise.
        * c-incpath.h (register_include_chains): Add extra parameter.
        * gcc.c (do_spec_1): Generate -imultilib option.
        (The Specs Language): Update %I description.
        (process_command): Update copyright notice.
        * doc/cppopts.texi (-imultilib): Document.
        * doc/invoke.texi (-imultilib): Include in option summary.
        (%I): Update specs documentation.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.

2006-01-20  Richard Sandiford  <richard@codesourcery.com>

        * stmt.c (case_bit_test_cmp): Stabilize the sort using code
        label numbers.

2006-01-20  Richard Guenther  <rguenther@suse.de>
        Steven Bosscher <stevenb.gcc@gmail.com>

        PR rtl-optimization/24626
        * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
        EDGE_TRUE_VALUE if in RTL mode.

        Revert
        2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
        * cfgrtl.c (rtl_verify_flow_info_1): Fix.

2006-01-20  Dirk Mueller  <dmueller@suse.com>

        PR c++/5520
        * c-parser.c (c_parser_if_body): Use build_empty_stmt()
        instead of a special NOP marker.
        * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
        NOP marker handling.
        * c-common.h (empty_body_warning): Add forward declaration.
        * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
        Now uses IS_EMPTY_STMT() instead of special NOP markers.

2006-01-20  Paul Brook  <paul@codesourcery.com>

        * Makefile.in (lang_checks): Keep going if mkdir fails.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
        be able to clean out basic block when not necessary.
        (df_scan_free): Fixed to properly delete information if df is
        unused before calling df_finish.
        (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
        df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
        or comment typos.
        (df_bb_refs_delete): New function.
        (df_refs_delete): Moved per block code to df_bb_refs_delete.
        * df-core.c (df_set_blocks): Added code to properly clean out
        unused blocks if they are not part of the blocks to consider.
        Added additional null check.
        (df_compact_blocks): Added basic block parameter to free_bb_fun to
        be able to clean out basic block when not necessary
        * df.h (df_free_bb_function): Ditto.
        (df_bb_refs_delete): New function.
        * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
        df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
        basic block parameter to be able to clean out basic block when not
        necessary.
        (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
        (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
        Fixed to properly delete information if df is unused before
        calling df_finish.

2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/25799
        * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
        Corrected confluence operator to remove bits from op2 before oring
        with op1 rather than removing bits from op1.
        (df_ru_transfer_function): Corrected test on wrong bitmap which
        caused infinite loop.  Both of these problems were introduced in
        the dataflow rewrite.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * reload1.c (find_reload_regs): Note the details of reload
        failures in the dump file.
        (spill_failure): Likewise.

2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-iv.c: Include df.h and hashtab.h.
        (enum iv_grd_result): New enum.
        (DF_REF_IV, DF_REF_IV_SET): New macros.
        (struct biv_entry): New.
        (df, bivs): New global variables.
        (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
        assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
        Removed.
        (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
        iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
        analyzed_for_bivness_p, record_biv): New functions.
        (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
        get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
        iv_analyze, biv_p, iv_analysis_done): Work with df representation of
        UD chains.
        (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
        analysed.
        (iv_number_of_iterations): Use new interface to iv analysis.
        * loop-unroll.c: Do not include varray.h.
        (analyze_iv_to_split_insn): Use new interface to iv
        analysis.
        * loop-unswitch.c (may_unswitch_on): Ditto.
        * df.c (df_bitmaps_free): Only work for bbs for that structures are
        allocated.
        (df_bb_modify): Realloc tables to the new index.
        (df_find_use): New function.
        * df.h (df_find_use): Declare.
        * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
        outmode.
        * cfgloop.h (struct rtx_iv): Remove analysed field.
        (iv_get_reaching_def): Removed.
        (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
        * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
        (loop-iv.o): Add df.h and hashtab.h dependency.
        * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.

2006-01-20  Alan Modra  <amodra@bigpond.net.au>

        * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
        Double TFmode.
        (__floatundisf, __floatundidf): Likewise.
        * libgcc2.h (IS_IBM_EXTENDED): Define.

2006-01-19  DJ Delorie  <dj@redhat.com>

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

2006-01-19  Paul Brook  <paul@codesourcery.com>

        * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
        as nothrow when unwinding tables are disabled.

2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR testsuite/25171
        * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
        of bit-field" when in system header.

2006-01-19  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
        the 16 bit shift limit of the m16c.

2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/22099
        * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
        * config/i386/i386.c (output_set_got): Output the label if we have one
        for the TARGET_DEEP_BRANCH_PREDICTION case.

2006-01-19  Jan Hubicka  <jh@suse.cz>
            H.J. Lu  <hongjiu.lu@intel.com>
            Evandro Menezes <evandro.menezes@amd.com>

        * invoke.texi (generic): Document
        (i686) Update.
        * config.gcc: Make x86_64-* and i686-* default to generic tunning.
        * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
        TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
        (x86_use_incdec, x86_pad_returns): New variables
        (TARGET_CPU_DEFAULT_generic): New constant
        (TARGET_CPU_DEFAULT_NAMES): Add generic.
        (enum processor_type): Add generic32 and generic64.
        * i386.md (cpu attribute): Add generic32/generic64
        (movhi splitter): Behave sanely when both partial_reg_dependency and
        partial_reg_stall are set.
        (K8 splitters): Enable for generic as well.
        * predicates.md (incdec_operand): Use TARGET_INCDEC
        (aligned_operand): Avoid memory mismatch stalls.
        * athlon.md: Enable for generic64, new patterns for 128bit moves.
        * ppro.md: Enable for generic32
        * i386.c (generic64_cost, generic32_cost): New.
        (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
        (x86_use_leave): Enable for generic64.  (x86_use_sahf,
        x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
        x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
        x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
        x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_prologue_using_move,
        x86_epilogue_using_move, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
        Enable for generic.
        (x86_use_incdec, x86_pad_returns): New.
        (override_options): Add generic32 and generic64, translate "generic"
        to generic32/generic64 and "i686" to "generic32", refuse
        "generic32"/"generic64" as arch target.
        (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
        (ix86_reorg): Honor PAD_RETURNS.

2006-01-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-pretty-print.c (dump_generic_node): Handle
        OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
        * cgraph.c (cgraph_expand_queue): Rename from
        cgraph_analyze_queue.  Update all users.
        * cgraphunit.c (cgraph_assemble_pending_functions): Process
        cgraph_expand_queue.
        (cgraph_expand_all_functions): Likewise.
        (cgraph_finalize_pending_functions): Remove.  Update callers.

        * tree.h (OMP_DIRECTIVE_P): Define.
        (OMP_PARALLEL_FN): Define.
        (OMP_PARALLEL_DATA_ARG): Define.
        (OMP_SECTIONS_SECTIONS): Define.
        * tree-pass.h (pass_expand_omp): Declare.
        * omp-low.c (struct omp_region): Declare.
        (struct omp_context): Remove fields 'parallel_type',
        'parallel_start_ix' and 'parallel_start_additional_args'.
        Update all users.
        (struct omp_for_data): Rename from struct expand_omp_for_data.
        (omp_regions): New static variable.
        (root_omp_region): New static variable.
        (find_omp_clause): Make static.
        (is_in_combined_parallel_ctx): Remove.
        (is_combined_parallel): New.
        (extract_omp_for_data): Move earlier in the file.
        (workshare_safe_to_combine_p): New.
        (get_ws_args_for): New.
        (determine_parallel_type): Move earlier in the file.
        (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
        child function.
        (omp_copy_decl): Likewise.
        (create_omp_child_function): Likewise.
        (lookup_omp_region): New.
        (dump_omp_region): New.
        (debug_omp_region): New.
        (debug_all_omp_regions): New.
        (new_omp_region): New.
        (scan_omp_parallel): If parallel_nesting_level > 1, the
        directive is nested within another parallel directive.
        Set OMP_PARALLEL_FN.
        (scan_omp_for): Do not try to handle combined parallel+for
        cases.
        Remove FIXME comment.
        (scan_omp_nested): Remove.
        (scan_omp_1): Do not call scan_omp_nested when
        parallel_nesting_level is > 1.
        Do not change the DECL_CONTEXT of local variables found.
        (lookup_decl_in_outer_ctx): New.
        (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
        (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
        (lower_reduction_clauses): Rename from expand_reduction_clauses.
        (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignment.
        (lower_send_clauses): Rename from expand_send_clauses.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignments.
        (lower_send_shared_vars): Rename from expand_send_shared_vars.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignments.
        (expand_parallel_call): Rename from build_parallel_call.
        Handle combined parallel+workshare cases.
        Re-implement to emit code into the CFG.
        (list2chain): New.
        (expand_omp_parallel): Re-implement to emit code into the CFG.
        Call move_sese_region_to_fn to outline the sub-graph
        containing the parallel region.
        (expand_omp_for_1): Remove.
        (expand_omp_for_generic): Re-implement to emit code into the
        CFG.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_for_static_chunk): Likewise.
        (expand_omp_for): Likewise.
        (expand_omp_sections): Likewise.
        (remove_exit_barriers): New.
        (expand_omp_synch): New.
        (expand_omp): New.
        (build_omp_regions_1): New.
        (build_omp_regions): New.
        (execute_expand_omp): New.
        (gate_expand_omp): New.
        (pass_expand_omp): Define.
        (lower_omp_sections): Rename from expand_omp_sections.
        Set OMP_SECTIONS_SECTIONS.
        (lower_omp_single_simple): Rename from expand_omp_single_simple.
        (lower_omp_single_copy): Rename from expand_omp_single_copy.
        (lower_omp_single): Rename from expand_omp_simple.
        (lower_omp_master): Rename from expand_omp_master.
        (lower_omp_ordered): Rename from expand_omp_ordered.
        (lower_omp_critical): Rename from expand_omp_critical.
        (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
        (lower_omp_for): Re-implement.
        (lower_omp_parallel): Re-implement.
        (lower_regimplify): Rename from expand_regimplify.
        (lower_omp_1): Rename from expand_omp_1.
        If there are syntax errors in the program, replace every
        OpenMP directive with NOP.
        Call lower_omp_* instead of expand_omp_*.
        (lower_omp): Rename from expand_omp.

        * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
        * tree-gimple.h (enum omp_parallel_type): Remove.
        (gimple_boolify): Declare extern.
        (find_omp_clause, determine_parallel_type): Remove.

        * gimple-low.c (lower_omp_directive): New.
        (lower_stmt): Call it.
        (record_vars_into): Move from ...
        (record_vars): ... here.
        Call record_vars_into with current_function_decl.

        * gimplify.c (struct gimplify_ctx): Remove fields
        combined_pre_p and combined_ctxp.  Update users.
        (get_formal_tmp_var): Add documentation.
        (gimple_boolify): Make extern.
        (gimplify_expr_in_ctx): Remove.  Update callers.
        (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
        will always be a BIND_EXPR.
        (gimplify_expr): Handle OMP_RETURN_EXPR.
        * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
        (OMP_PARALLEL): Add 3 operands.
        (OMP_SECTIONS): Add 1 operand.
        (OMP_RETURN_EXPR): Define.

        * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
        (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
        * tree-iterator.c (alloc_stmt_list): Assert that we are not
        creating a circular free list.
        (free_stmt_list): Assert that we are not freeing stmt_list_cache.

        * tree-flow.h (move_sese_region_to_fn): Declare.
        (record_vars_into): Declare.
        * tree-cfg.c (make_omp_sections_edges): New.
        (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
        OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
        OMP_SECTIONS and OMP_SECTION.
        (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
        (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
        (verify_stmt): Do not handle OMP_DIRECTIVE_P.
        (gather_blocks_in_sese_region): New.
        (struct move_stmt_d): Declare.
        (move_stmt_r): New.
        (move_block_to_fn): New.
        (move_sese_region_to_fn): New.

        * passes.c (init_optimization_passes): Schedule
        pass_expand_omp after pass_init_datastructures.

        * tree-ssa-operands.c (get_expr_operands): Handle
        OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
        OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.

2006-01-19  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_assert): Refine the result range
        if the variable referenced by the ASSERT_EXPR has a range and
        either the tentative result range or the previous range is a
        VR_ANTI_RANGE.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

        * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.

2006-01-19  Jan Hubicka  <jh@suse.cz>

        * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.

2006-01-19  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
        (expand_compound_operation, expand_field_assignment): Fail if the
        bit lengths of an extract operation are out of range.
        (make_extraction): Compute wanted_inner_mode based on the position
        and length of the extraction.  Make it extraction_mode for non-constant
        positions, and do not modify offset in that case.  When generating a
        new MEM, use a mode that can hold the extraction while keeping correct
        alignment.  Remove code that supported MEMs wrapped by USEs.
        (simplify_shift_const_1, force_to_mode) <case USE>: Remove.

2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("Y", "y"): New mode attribute.
        ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
        "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
        "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
        "*addsi3_imm_cc", "*addsi3_carry1_cc",
        "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
        "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
        "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
        "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
        "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
        "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
        "addsi3", "subsi3"): Insn patterns removed.
        ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
        "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
        "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
        "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
        "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
        "*sub<mode>3_cconly2"): New insn patterns.
        ("addsi3", "subsi3"): New expanders.

2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>

        * Makefile.in (tree-vect-patterns.o): Add rule for new file.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
        existing STMT_VINFO_VECTYPE if available.
        (vect_mark_relevant): Add special handling for stmts that are
        marked as STMT_VINFO_IN_PATTERN_P.
        (vect_analyze_loop): Call vect_pattern_recog.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
        * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
        stmt_info.
        (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
        (vect_recog_func_ptr): New function-pointer type.
        * tree-vect-patterns.c: New file.
        (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
        (vect_recog_dot_prod_pattern, vect_pattern_recog):
        (vect_pattern_recog_1): New functions.
        (vect_pattern_recog_funcs): New array of function pointers.

        * tree-vectorizer.h (ternary_op): New enum value.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
        declaration. Revised documentation. Removed redundant dump prints.
        Removed redundant argument. Added support for reduction patterns.
        (vectorizable_reduction): Added support for reduction patterns.
        (vect_transform_stmt): Added support for patterns.

        * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
        * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
        * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
        (expand_widen_pattern_expr): New function.
        (init_optabs): Initialize new optabs udot_prod_optab,
        sdot_prod_optab.
        * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
        (sdot_prod_optab, udot_prod_optab): Define new optabs.
        (expand_widen_pattern_expr): New function declaration.
        * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
        tree-codes.
        * tree-inline.c (estimate_num_insns_1): Added cases for new
        tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        (op_prio): Likewise.
        (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
        * tree-ssa-operands.c (get_expr_operands): Added case for
        DOT_PROD_EXPR.
        * tree-vect-patterns.c (widened_name_p): New function.
        (vect_recog_dot_prod_pattern): Added function implementation.
        * tree-vect-transform.c (get_initial_def_for_reduction): Added
        cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
        * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
        * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.

        * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
        * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
        * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
        (init_optabs): Initialize new optabs widen_ssum_optab,
        widen_usum_optab.
        * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
        (widen_ssum_optab, widen_usum_optab): Define new optabs.
        * tree-vect-generic.c: (expand_vector_operations_1): Check type of
        use instead of type of def.
        * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
        function implementation.
        * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
        widen_ssumv8hi): New.

        * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
        patterns.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

        PR c/25805
        * c-decl.c (add_flexible_array_elts_to_size): New function.
        (finish_decl): Use it.

2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>

        * diagnostic.h: Include options.h.
        * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
        dependancies for diagnostic.h.
        * Makefile.in (DIAGNOSTIC_H): Add options.h.

2006-01-16  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
        (ssa_ro_call_cache_valid): Ditto.
        * tree-ssa-alias.c (sort_tags_by_id): New function.
        (init_transitive_clobber_worklist): Ditto.
        (add_to_worklist): Ditto.
        (mark_aliases_call_clobbered): Ditto.
        (compute_tag_properties): Ditto.
        (set_initial_properties): Ditto.
        (compute_call_clobbered): Ditto.
        (compute_may_aliases):  Call compute_call_clobbered and grouping.
        (compute_flow_sensitive_aliasing): Remove clobbering related code.
        (compute_flow_insensitive_aliasing): Grouping now happens in our
        caller.
        (setup_pointers_and_addressables): Remove clobbering related code.
        (add_may_alias): Ditto.
        (replace_may_alias): Ditto.
        (get_nmt_for): Ditto.
        (create_global_var):
        (is_escape_site): Return an escape_type enumeration.
        * tree-flow-inline.h (is_call_clobbered):  Global var does not
        imply call clobbered.
        (mark_call_clobbered): Take a reason for marking this. Remove
        marking of globalness, and cache invalidation.
        (clear_call_clobbered): Remove cache invalidation code.
        * tree-dfa.c (dump_variable): If details is on, dump the reason
        for escaping.
        * tree-outof-ssa.c (create_temp): Copy escape mask from original
        variable.
        * tree-flow.h (struct ptr_info_def): Add escape mask member.
        (struct var_ann_d): Ditto.
        (enum escape_type): New.
        (mark_call_clobbered): Adjust prototype.
        * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
        are never call clobbered.
        Record reasons for escaping.
        * tree-ssa-structalias.h (is_escape_site): Update prototype.
        * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
        (ssa_ro_call_cache_valid): Ditto.
        (clobbered_v_may_defs): Ditto.
        (clobbered_vuses): Ditto.
        (ro_call_vuses): Ditto.
        (clobber_stats): New.
        (init_ssa_operands): Zero out clobber stats.
        (fini_ssa_operands): Print out clobber stats.
        (get_call_expr_operands): Pass callee fndecl to
        add_call_read_ops).
        (add_call_clobber_ops): Remove use of cache.
        Add use of PURE_CONST information.
        (add_call_read_ops): Remove use of cache.
        Add use of static not_read information.

2006-01-18  Alexandre Oliva  <aoliva@redhat.com>

        Introduce TLS descriptors for i386 and x86_64.
        * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
        (TARGET_ANY_GNU_TLS): New macro.
        (enum tls_dialect): Added TLS_DIALECT_GNU2.
        (struct machine_function): Add tls_descriptor_call_expanded_p.
        (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
        (ix86_current_function_calls_tls_descriptor): Likewise.
        * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
        (override_options): Introduce gnu2 tls dialect.
        (ix86_frame_pointer_required): Functions containing TLSCALLs are
        not leaves.
        (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
        Likewise.
        (legitimize_tls_address): Adjust logic for GNU2 TLS.
        (ix86_init_machine_status): Initialize new field.
        (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
        (ix86_tls_module_base): New.
        * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
        * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
        (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
        (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
        (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
        (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
        (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
        (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
        * config/i386/predicates.md (tls_modbase_operand): New.
        (tp_or_register_operand): New.

2006-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
        (look_for_address_of): Ditto.
        (ipa_init): Walk the function decls.
        (static_execute): Don't set readonly on FUNCTION_DECL's.

2006-01-18  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
        for shifts where the source and destination registers are different.

2006-01-18  Paul Brook  <paul@codesourcery.com>

        Merge from csl-arm-branch.
        2005-03-14  Julian Brown  <julian@codesourcery.com>
        * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
        (aeabi_llsl): Likewise.
        (ashrdi3): Likewise.
        (aeabi_lasr): Likewise.
        (lshrdi3): Likewise.
        (aeabi_llsr): Likewise.
        2005-03-10  Julian Brown  <julian@codesourcery.com>
        * config.gcc: Disable shared libgcc for SymbianOS.
        * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.

2006-01-18  DJ Delorie  <dj@redhat.com>

        * c-pragma.c (handle_pragma_diagnostic): New.
        (init_pragma): Register it.
        * doc/extend.texi: Document it.

        * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
        * diagnostic.h (diagnostic_classify_diagnostic): Declare.
        (diagnostic_context): Add classify_diagnostic[].
        * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
        as errors if they're overridden to DK_WARNING.
        (diagnostic_initialize): Initialize classify_diagnostic[].
        (diagnostic_set_kind_override): New.
        (diagnostic_report_diagnostic): Check for kind changes.
        * opts.c (common_handle_option): Take lang_mask.  Update callers.
        Handle OPT_Werror_.
        * common.opt (Werror=): New.
        * doc/invoke.texi: Document -Werror=*

2006-01-18  Jeff Law  <law@redhat.com>

        * tree-vrp.c (test_for_singularity): Correct test for new
        min limit.  Use operand_equal_p rather than pointer equality
        for testing if new min/max values are equal.

        * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
        using range information until after propagation and folding.

2006-01-18  Richard Henderson  <rth@redhat.com>
            Aldy Hernandez  <aldyh@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c: New file.
        * c-omp.c: New file.

2006-01-18  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * doc/invoke.texi: Document -fopenmp.
        * tree-dump.h (debug_function): Declare.
        * hooks.c (hook_bool_tree_bool_false): New function.
        (hook_tree_tree_null): Remove.
        (hook_tree_tree_tree_null): New.
        * hooks.h: Update to match.
        * tree-pretty-print.c (debug_tree_chain): New.
        (print_generic_expr): Handle TDF_CHAIN.
        (dump_generic_node): Handle BLOCK.
        Do not abort with incomplete SWITCH_EXPRs.
        Do not dump body of an OpenMP directive if TDF_SLIM is given.
        <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
        print space after directive name.
        <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
        Handle OMP_MASTER and OMP_ORDERED.
        Handle printing of OMP_BODY just in one place, goto
        dump_omp_body in the rest of OMP_* nodes that have
        OMP_BODY.
        Don't handle clause nodes here.  Update omp statements to
        use dump_omp_clauses.
        Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
        OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
        OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
        GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
        GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
        GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
        Adjust output for GOMP_PARALLEL.
        (dump_omp_clauses): New.
        (print_declaration): Dump DECL_VALUE_EXPR.
        (op_symbol_1): Split out of op_symbol.
        (dumping_stmts): Remove.  Update all users.
        * cgraph.c (cgraph_analyze_queue): New.
        (cgraph_add_new_function): New.
        * cgraph.h (cgraph_analyze_queue): Declare.
        (cgraph_add_new_function): Declare.
        (cgraph_lower_function): Remove.
        * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
        nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
        and TYPE_P nodes in its default clause.
        (empty_body_p): New.
        (tree_range_check_failed): New.
        (build5_stat): New.
        * tree.h (OMP_CLAUSE_REDUCTION_INIT,
        OMP_CLAUSE_REDUCTION_MERGE,
        OMP_CLAUSE_REDUCTION_PLACEHOLDER,
        OMP_CLAUSE_PRIVATE_DEBUG,
        OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
        OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
        OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
        OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
        OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
        OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
        OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
        OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
        OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
        OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
        OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
        OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
        OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
        OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
        (TREE_RANGE_CHECK): New.
        (empty_body_p): Declare.
        (enum omp_clause_default_kind): New.
        (build_string_literal): Declare.
        (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
        (build5_stat, build5): Declare.
        * tree-pass.h (TDF_CHAIN): Define.
        * tree-pass.h (PROP_gimple_lomp): Define.
        (pass_lower_omp): Declare.
        * diagnostic.h (debug_tree_chain): Declare.
        * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
        mode_for_size.
        (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
        * builtins.c (build_string_literal): Make extern.
        * gcc.c (include_spec_function): New.
        (static_spec_functions): Add it.
        (main): Move load of libgomp.spec ...
        (LINK_COMMAND_SPEC): ... here.
        (link_gomp_spec): New.
        (static_specs): Include it.
        (LINK_COMMAND_SPEC): Add link_gomp.
        (GOMP_SELF_SPECS): New.
        (driver_self_specs): Include it.
        (switch_matches): Don't mark inline.
        (main): Load libgomp.spec.
        * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
        OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
        and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
        * tree-gimple.h (enum omp_parallel): Declare.
        (determine_parallel_type): Declare.
        (omp_firstprivatize_variable): Declare.
        (omp_reduction_init): Declare.
        (diagnose_omp_structured_block_errors): Declare.
        (struct walk_stmt_info): Add want_return_expr.
        (struct walk_stmt_info): Add want_bind_expr, want_locations.
        (find_omp_clause): Declare.
        (insert_field_into_struct): Declare.
        (struct walk_stmt_info): Move from tree-nested.c
        (walk_stmts): Declare.
        * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
        to 200505.
        * cgraphunit.c (cgraph_lower_function): Make static.
        (cgraph_finalize_pending_functions): New.
        (cgraph_finalize_function): Call it.
        (cgraph_finalize_compilation_unit): Likewise.
        * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
        BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
        (BT_FN_UINT_UINT): New.
        (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
        DEF_FUNCTION_TYPE_VAR_4): Document.
        (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
        BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
        BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
        BT_FN_VOID_OMPFN_PTR_UINT_UINT,
        BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
        BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
        BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
        BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
        * builtins.def: Update DEF_BUILTIN comment to include COND argument.
        Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
        into separate files.
        (DEF_GOMP_BUILTIN): New.
        (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
        BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
        BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
        BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
        BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
        BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
        BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
        BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
        BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
        BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
        BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
        BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
        BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
        BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
        BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
        BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
        * sync-builtins.def: New file, moved from builtins.def.
        * omp-builtins.def: New file, moved from builtins.def.
        * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
        * gimple-low.c (lower_function_body): Clear data.
        (lower_stmt): Do not handle COMPOUND_EXPR.
        Remove call to print_node_brief.
        * c-tree.h (c_finish_omp_clauses): New prototype.
        (C_DECL_THREADPRIVATE_P): Define.
        (lookup_name_no_remap, c_omp_remap_private): Remove
        (c_begin_omp_parallel, c_finish_omp_parallel): Update.
        (check_for_loop_decls): Update decl.
        (lookup_name_no_remap, c_omp_remap_private): Declare.
        (build_indirect_ref, build_modify_expr, pushdecl,
        pushdecl_top_level): Move to c-common.h.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
        before the switch, but just in the 2 places that need it.
        * c-decl.c (diagnose_mismatched_decls): Do not check for
        mismatched thread-local attributes when OLDDECL is marked
        threadprivate and NEWDECL has no thread-local attributes.
        (merge_decls): Merge C_DECL_THREADPRIVATE_P.
        (c_gimple_diagnostics_recursively): Rename from
        c_warn_unused_result_recursively.  Invoke
        diagnose_omp_structured_block_errors.
        (check_for_loop_decls): Return a singular decl found.
        * langhooks.c (lhd_omp_predetermined_sharing): Return
        OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
        (lhd_omp_firstprivatize_type_sizes): New.
        (lhd_omp_assignment): New.
        (lhd_omp_predetermined_sharing): New.
        * langhooks.h (struct gimplify_omp_ctx): Forward declare.
        (struct lang_hooks_for_types): Add
        omp_firstprivatize_type_sizes, omp_privatize_by_reference,
        omp_predetermined_sharing, omp_disregard_value_expr,
        omp_private_debug_clause, omp_clause_default_ctor,
        omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
        (c_finish_omp_clauses): New.
        (c_finish_bc_stmt): Diagnose break within omp for.
        (c_begin_omp_parallel, c_finish_omp_parallel): New.
        (build_unary_op): Return error_mark after reporting
        a readonly_error.
        (build_modify_expr): Likewise.
        * gimplify.c: Include optabs.h and pointer-set.h.
        (enum gimplify_omp_var_data): Declare.
        (struct gimplify_omp_ctx): Declare.
        (struct gimplify_ctx): Add fields prev_context, combined_pre_p
        and combined_ctxp.
        (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
        (push_gimplify_context, pop_gimplify_context): Allow nesting.
        (splay_tree_compare_decl_uid): New.
        (new_omp_context): New.
        (delete_omp_context): New.
        (gimple_add_tmp_var): Call omp_add_variable.
        (gimplify_bind_expr): Likewise.
        (gimplify_var_or_parm_decl): If omp_notice_variable returned
        true, disregard DECL_VALUE_EXPR on the decl if any.
        (gimplify_expr_in_ctx): New.
        (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
        omp_add_variable, omp_notice_variable, omp_is_private
        gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
        gimplify_adjust_omp_clauses, gimplify_omp_parallel
        gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
        gimplify_omp_atomic_fetch_op, goa_stabilize_expr
        gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
        gimplify_omp_atomic): New.
        (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
        OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
        OMP_CRITICAL and OMP_ATOMIC.
        (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
        * c-pragma.h (enum pragma_kind): Add
        PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
        PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
        PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
        PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
        PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
        PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
        PRAGMA_OMP_THREADPRIVATE.
        * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
        OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
        OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
        OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
        OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
        OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
        OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
        OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
        OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
        * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
        * tree-ssa-dce.c (find_control_dependence): Do not assume that
        ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
        * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
        OpenMP directives.
        (struct nesting_info): Add field_map,
        suppress_expansion, debug_var_chain.
        (create_nesting_tree): Initialize them.
        (lookup_field_for_decl): Use field_map.
        (get_nonlocal_debug_decl, get_local_debug_decl): New.
        (convert_local_omp_clauses): New.
        (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
        (walk_body): Split out of walk_function.
        (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
        (convert_nonlocal_reference): Handle omp statements.
        (convert_local_reference): Likewise.
        (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
        (unnest_nesting_tree): New.
        (lower_nested_functions): Call it.
        (insert_field_into_struct): Make extern.
        (struct walk_stmt_info): Move to tree-gimple.h.
        (walk_stmts): Make extern.
        * omp-builtins.def: New file.
        * tree-iterator.c (expr_only): Clarify comment.
        * c-common.h (pushdecl_top_level, pushdecl,
        build_modify_expr, build_indirect_ref,
        c_finish_omp_master, c_finish_omp_critical,
        c_finish_omp_ordered, c_finish_omp_barrier,
        c_finish_omp_atomic, c_finish_omp_flush,
        c_finish_omp_for, c_split_parallel_clauses,
        omp_clause_default_kind, c_omp_sharing_predetermined,
        c_omp_remap_decl): Declare.
        * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
        (OBJS-common): Add omp-low.o.
        (c-omp.o, omp-low.o): Add.
        (gimplify.o): Add dependency on $(OPTABS_H).
        (GTFILES): Add omp-low.c.
        (gt-stringpool.h): Add.
        * tree-cfg.c (set_bb_for_stmt): Do not update the
        block-to-labels map if we are currently expanding to RTL.
        (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
        checks.
        Handle IDENTIFIER_NODE.
        (tree_verify_flow_info): Do not ICE when emitting error
        messages about invalid labels.
        (dump_function_to_file): Reset CFUN before emitting the body
        of the function.
        (debug_function): New.
        * passes.c (init_optimization_passes): Schedule
        pass_lower_omp.
        * langhooks-def.h (lhd_omp_predetermined_sharing,
        lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
        Declare.
        (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
        (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
        LANG_HOOKS_OMP_PREDETERMINED_SHARING,
        LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
        LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
        LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
        LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
        LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
        LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
        (LANG_HOOK_DECLS): Use them.

2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
            Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * c-parser.c (pragma_omp_clause): Define.
        (c_parser_declaration_or_fndef): Document OpenMP syntax.
        (c_parser_compound_statement): Likewise.
        (c_parser_statement): Likewise.
        (c_parser_pragma): Handle omp pragmas.
        (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
        OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
        (c_parser_omp_clause_name, check_no_duplicate_clause,
        c_parser_omp_variable_list,
        c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
        c_parser_omp_clause_copyprivate,
        c_parser_omp_clause_default,
        c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
        c_parser_omp_clause_lastprivate,
        c_parser_omp_clause_nowait,
        c_parser_omp_clause_num_threads,
        c_parser_omp_clause_ordered, c_parser_omp_clause_private,
        c_parser_omp_clause_reduction,
        c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
        c_parser_omp_all_clauses, c_parser_omp_structured_block,
        c_parser_omp_atomic, c_parser_omp_barrier,
        c_parser_omp_critical, c_parser_omp_flush,
        c_parser_omp_for_loop, c_parser_omp_for,
        c_parser_omp_master, c_parser_omp_ordered,
        c_parser_omp_sections_scope, c_parser_omp_sections,
        c_parser_omp_parallel, c_parser_omp_single,
        c_parser_omp_construct, c_parser_omp_threadprivate): New.
        * c-pragma.c (init_pragma): Do omp pragma registration here.
        * c.opt (fopenmp): New flag.

2006-01-18  Eric Christopher  <echristo@apple.com>

        * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
        * config/darwin.h (GOMP_SELF_SPECS): Define.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * rtl.h: Remove the prototype for reg_alloc.

2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25731
        * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
        hppa[12]*-*-hpux11*): Override default shared libgcc version for both
        sjlj and dwarf2 exception handling.
        * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
        Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
        * pa/pa.c (function_value): Treat complex and vector types as
        aggregates.
        (function_arg): Likewise.  Only pass scalar floats in the floating
        point argument registers.
        * pa/t-slibgcc-dwarf-ver: New file.
        * pa/t-slibgcc-sjlj-ver: New file.
        * pa/t-slibgcc-elf-ver: Delete file.

2006-01-19  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
        unlikely_test_section_p test.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * mode-switching.c (optimize_mode_switching): Make it static.
        * basic-block.h: Remove the prototype for
        optimize_mode_switching.

        * modulo-sched.c (sms_schedule): Make it static.
        * rtl.h: Remove the prototype for sms_schedule.

        * postreload-gcse.c (gcse_after_reload_main): Make it static.
        * rtl.h: Remove the prototype for gcse_after_reload_main.

        * reg-stack.c (reg_to_stack): Make it static.
        * rtl.h: Remove the prototype for reg_to_stack.

        * regrename.c (regrename_optimize, copyprop_hardreg_forward):
        Make them static.
        * rtl.h: Remove the prototypes for regrename_optimize and
        copyprop_hardreg_forward.

2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>

        * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
        alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
        Test against the appropriate null constant for the mode.
        If 'fixup_overlap' is true, swap the operands if they overlap.
        (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
        * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
        alpha_split_tmode_pair and adjust for above change.
        * config/alpha/alpha.md (movtf_internal): Adjust call to
        alpha_split_tfmode_pair and rely on it to swap the operands.
        (movti_internal): New insn and post-reload splitter.
        (movti): New expander.

2006-01-18  Philippe De Muyter  <phdm@macqel.be>

        * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
        operands.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (global_reg_mentioned_p_1,
        global_reg_mentioned_p): Remove.
        * rtl.h: Remove the prototype for global_reg_mentioned_p.

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

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

        * regmove.c (regmove_optimize, combine_stack_adjustments):
        Make them static.
        * rtl.h: Remove the prototypes for regmove_optimize and
        combine_stack_adjustments.

2006-01-17  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (COSTS_N_BYTES): New macro.
        (size_cost): Encode costs in bytes so that a reg-reg addition is
        equivalent to COSTS_N_INSNS(1).
        (override_options): Use the size_cost.branch_cost as the default
        ix86_branch_cost when optimizing for size.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * Makefile.in (D32PBIT_FUNCS): New.
        (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
        (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
        D64PBIT_FUNCS and D128PBIT_FUNCS.
        (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
        * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
        D128PBIT are set.
        (decnumber_dep): Define.
        * doc/libgcc.texi (Decimal float library routines): New node.
        * config/dfp-bit.h, config/dfp-bit.c: New files.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * expr.c (emit_move_change_mode): Always adjust addresses, not
        just during reload.  Copy replacements only during reload.
        (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
        emit_move_via_integer.

2006-01-17  Shantonu Sen  <ssen@opendarwin.org>

        * Makefile.in (check-%, check-consistency): Use $${srcdir}
        instead of $(srcdir) and ${srcdir}.

2006-01-17  Richard Earnshaw  <rearnsha@arm.com>

        PR target/592
        PR middle-end/11135
        * arm.h (struct machine_function): Add pic_reg.
        * arm.c (arm_pic_register): Make unsigned.
        (arm_override_options): Only set arm_pic_register if
        TARGET_SINGLE_PIC_BASE.
        (use_return_insn): Only test for a pic register if it is fixed.
        (arm_compute_save_reg0_reg12_mask): Likewise.
        (thumb_compute_save_reg_mask): Likewise.
        (legitimate_pic_operand): Factor out some known invariants.
        (legitimize_pic_address): If we don't have a fixed pic register,
        then set up a pseudo in the function entry sequence.  Handle the
        pic base being in a pseudo.
        (arm_load_pic_register): Handle the pic register being in a pseudo.
        (arm_expand_prologue): Only set up the pic register if it is fixed.
        (thumb_expand_prologue): Likewise.
        * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
        (pic_load_addr_based_insn): Likewise.
        (builtin_setjmp_receiver): Don't restore the pic base if it isn't
        fixed.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
        decimal float modes for all floating point registers.

        * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
        match_code "mem" with match_test "macho_lo_sum_memory_operand".

2006-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/25682
        * c-typeck.c (build_unary_op): Fold offsetof-like expressions
        even when the pointer is not NULL.

2006-01-16  Ian Lance Taylor  <ian@airs.com>

        * common.opt (ftoplevel-reorder): New option.
        * cgraph.c (cgraph_asm_nodes): New global variable.
        (cgraph_asm_last_node): New static variable.
        (cgraph_order): New global variable.
        (cgraph_create_node): Set new order field.
        (cgraph_varpool_node): Likewise.
        (decide_is_variable_needed): Return true if not
        flag_toplevel_reorder.
        (cgraph_add_asm_node): New function.
        * cgraph.h (struct cgraph_node): Add order field.
        (struct cgraph_varpool_node): Add order field.
        (struct cgraph_asm_node): Define.
        (cgraph_asm_nodes, cgraph_order): Declare.
        (cgraph_add_asm_node): Declare.
        * cgraphunit.c (cgraph_varpool_assemble_decl): New static
        function.
        (cgraph_varpool_assemble_pending_decls): Call it.
        (cgraph_output_pending_asms): New static function.
        (cgraph_finalize_compilation_unit): Call it.
        (struct cgraph_order_sort): Define.
        (cgraph_output_in_order): New static function.
        (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
        !flag_toplevel_reorder case.
        * c-parser.c: Include "cgraph.h".
        (c_parser_asm_definition): Call cgraph_add_asm_node rather than
        assemble_asm.
        * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
        than -fno-unit-at-a-time.
        * doc/invoke.texi (Option Summary): Mention
        -fno-toplevel-reorder.
        (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
        -funit-at-a-time documentation.

2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
            Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.

2006-01-17  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (FUNCTION_H): New.  Use it instead of
        function.h throughout the file.
        * function.h: Include tree.h.

2006-01-17  Ben Elliston  <bje@au.ibm.com>

        * recog.c: Separate some functions with whitespace.

2006-01-16  Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
        * tree-inline.h (struct copy_body_data): Move from tree-inline.c
        and rename from struct inline_data.  Rename callee* to dst*;
        caller* to src*; add copy_decl hook, transform_call_graph_edges,
        transform_new_cfg, transform_return_to_modify, and
        transform_lang_insert_block flags; remove cloning_p, versioning_p,
        update_clones_p.
        (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
        (copy_decl_for_dup): Remove.
        * tree-inline.c (struct inline_data): Move to header.
        (insert_decl_map): Export.
        (remap_decl): Update for member name changes.  Use copy_decl hook.
        Allow for replacement to be a non-decl.  Remove dead code.
        (remap_type_1): Check for existing mapping.
        (remap_type): Export.
        (remap_decls): Update for member name changes.
        (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
        (copy_body, setup_one_parameter, declare_return_variable): Likewise.
        (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
        (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
        (tree_function_versioning, build_duplicate_type): Likewise.
        (copy_body_r): Likewise.  Export.
        (copy_decl_for_dup): Split into ...
        (copy_decl_for_dup_finish, copy_decl_to_var,
        copy_decl_no_change, copy_decl_maybe_to_var): ... these.
        (replace_ref_tree, inlining_p): Remove.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * ifcvt.c (if_convert): Make it static.
        * rtl.h: Remove the prototype for if_convert.

        * local-alloc.c (local_alloc): Make it static.
        * rtl.h: Remove the prototype for local_alloc.

        * loop.c (loop_optimize): Make it static.
        * cfgloop.h: Remove the prototype for loop_optimize.
        * rtl.h: Likewise.

2006-01-16  DJ Delorie  <dj@redhat.com>

        * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
        mems.

2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Disparage copies between general and floating-point registers
        in 32-bit move patterns.

2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR testsuite/25741
        * Makefile.in (check-%): Depend on site.exp instead of
        $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
        directories.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * global.c (global_alloc): Make it static.
        * rtl.h: Remove the prototype for global_alloc.

2006-01-16  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (struct used_part): Add write_only field.
        (get_or_create_used_part_for): Initialize it to true.
        (create_overlap_variables_for): Don't create structure variables
        for structures that only are written to.
        (find_used_portions): Handle MODIFY_EXPR to track whether a
        structure is only written to.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
        static.
        * basic-block.h: Remove the prototype for
        partition_hot_cold_basic_blocks.

2006-01-16  Rafael Ãvila de Espíndola <rafael.espindola@gmail.com>

        * cppspec.c (lang_specific_spec_functions): Remove.
        * gcc.c (lookup_spec_function): Use static_spec_functions directly.
        * gcc.h (lang_specific_spec_functions): Remove.
        * gccspec.c (lang_specific_spec_functions): Remove.

2006-01-16  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (record_value_for_reg): Invalidate registers
        if INSN is null.
        (record_dead_and_set_regs_1): Likewise, by passing them to
        record_value_for_reg.
        (record_dead_and_set_regs): Invalidate stores made by a
        call.  We do not combine across a call, but we still
        relied on equivalences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_binary_expr): Cope with
        vrp_int_const_binop returning non-constant nodes.

2006-01-16  Paul Brook  <paul@codesourcery.com>

        * config/m68k/m68k.c (output_move_const_into_data_reg):
        Output correct mnemonic for mvz and mvs.

2006-01-16  Gabor Loki  <loki@gcc.gnu.org>

        * rtl-factoring.c: Add sequence abstraction algorithm.
        * cfgcleanup.c (outgoing_edges_match): Extra checks.
        (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
        ABNORMAL edges.
        (block_has_preserve_label): New function.
        * common.opt: Register new pass.
        * Makefile.in: Ditto.
        * passes.c: Ditto.
        * timevar.def: Ditto.
        * tree-pass.h: Ditto.
        * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
        * rtl.h (make_jump_insn_raw): Add forward decl.
        * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
            Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_minmax): New static function.
        (fold_binary) <MIN_EXPR>: Call it.
        <MAX_EXPR>: Likewise.
        * stor-layout.c (place_field): Use DECL_SIZE consistently
        in the computation of the new record size.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * cse.c (cse_condition_code_reg): Make it static.
        * rtl.h: Remove the prototype for cse_condition_code_reg.

        * combine.c (combine_instructions): Make it static.
        * rtl.h: Remove the prototype for combine_instructions.

2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25168
        * tree.c (get_file_function_name_long): Concatenate the first global
        object name with a string derived from the input filename of the object
        for type "F".

2006-01-16  Ben Elliston  <bje@au.ibm.com>

        * config/i386/winnt-stubs.c: Update FSF address.
        * config/xtensa/ieee754-df.S: Ditto.
        * config/xtensa/ieee754-sf.S: Ditto.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

        * ifcvt.c (noce_init_if_info): New static function, broken out of
        noce_process_if_block.
        (noce_process_if_block): Call noce_init_if_info.
        (check_cond_move_block): New static function.
        (cond_move_process_if_block): New static function.
        (process_if_block): Call cond_move_process_if_block.

2006-01-15  Kazu Hirata  <kazu@codesourcery.com>

        * cselib.c (hash_table): Rename to cselib_hash_table.
        (cselib_clear_table, discard_useless_values,
        remove_useless_values, cselib_lookup_mem, cselib_lookup,
        cselib_init, cselib_finish): Adjust uses of hash_table.

2006-01-14  Kazu Hirata  <kazu@codesourcery.com>

        PR tree-optimization/25485
        * tree-vrp.c (extract_range_from_binary_expr): Handle cases
        where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
        is known to be false and true, respectively.

2006-01-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22548
        PR tree-optimization/22555
        PR tree-optimization/22501
        * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
        * params.def (salias-max-array-elements): New parameter.
        * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
        * doc/invoke.texi (salias-max-array-elements): Document.
        * tree-flow-inline.h (var_can_have_subvars): We also handle
        arrays now.
        * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
        COMPONENT_REF.
        * tree-ssa-structalias.c (params.h): Include.
        (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
        (find_func_aliases): Handle multiple constraints from ARRAY_REF.
        (get_constraint_for): For ADDR_EXPR operating on something
        containing an ARRAY_REF, add all subvars to the solution.
        (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
        * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
        for creating MUST_DEFs.
        (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.

2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
        functions.
        (number_of_iterations_ne, number_of_iterations_lt_to_ne,
        assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
        number_of_iterations_le): New functions.
        (number_of_iterations_special): Removed.
        (number_of_iterations_exit): Do not use number_of_iterations_special.
        * tree.c (unsigned_type_for): Always return integer type.

2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
        Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/24257
        * gcse.c (find_moveable_store): Only consider a store movable
        when the SET_SRC of the insn can be assigned to a register.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

        * tree.c (tree_not_class_check_failed): New function.
        * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
        (tree_not_class_check_failed): Declare.

2006-01-13  Ian Lance Taylor  <ian@airs.com>

        * reload1.c (do_output_reload): Add assertion rejecting a
        CALL_INSN.

2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (struct reg_stat): Add new fields truncation_label and
        truncated_to_mode.
        (record_value_for_reg): Reset truncated_to_mode.
        (record_truncated_value): New function.
        (check_promoted_subreg): Call it.  Rename to check_conversions.
        (combine_instructions): Rename check_promoted_subreg to
        check_conversions.
        (reg_truncated_to_mode): New function.
        (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
        (gen_lowpart_or_truncate): New function.
        (force_to_mode): Use it instead of gen_lowpart.

2006-01-13  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
        VAR is a tag, not its type tag.

2006-01-13  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
        alternatives to match style of other entries.
        (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.

2006-01-13  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/25771
        * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
        SSA_NAMES.

2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): If the return variable
        was marked as a non gimple complex, set the return slot variable
        to be a non gimple comple variable.

2006-01-13  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_sincos): New function.
        (expand_builtin_mathfn_3): Remove dead code, sin and cos
        do not set errno.
        (expand_builtin): Expand sincos using expand_builtin_sincos.

2006-01-12  DJ Delorie  <dj@redhat.com>

        * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
        shift counts, separate SI shifts for m32c vs m16c, pass shift type
        so that constant shifts can be split.
        * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
        (m32c_valid_pointer_mode): Make static.
        (shift_gen_func_for): New.
        (m32c_prepare_shift): Use it.  Split large const shifts into
        multiple shifts.
        * config/m32c/predicates.md (shiftcount_operand): Allow more
        general operands.
        (longshiftcount_operand): New.
        * doc/md.texi (Machine Constraints): Document In6.

2006-01-13  Ben Elliston  <bje@au.ibm.com>

        * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
        REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
        documentation.

2006-01-12  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
        to try to avoid clobbering pieces of structures when we know
        something about the whole structure.
        * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR

2006-01-13  Ben Elliston  <bje@au.ibm.com>

        * doc/rtl.texi (Insns): Remove statement that libcalls cannot
        return in memory, as this is no limitation is no longer present.

2006-01-12  DJ Delorie  <dj@redhat.com>

        * config/m32c/addsub.md (addhi3): Add two more alternatives, for
        mova with fb, and for fb+0 -> An.

        * config/m32c/mov.md (peephole2): Fix enabling logic.

        * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
        DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
        DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
        FINI_ARRAY_SECTION_ASM_OP): Define.

        * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
        variable.
        (m32c_legitimize_reload_address): New logic to reload FB to An.
        (m32c_output_reg_push): Add newline.
        (m32c_output_reg_pop): Likewise.

2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>

        * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.

2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/predicates.md (sh_rep_vec): Add parallel to
        match_code.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

        * rtlanal.c (find_reg_note): Assert insn is not null.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_hard_reg_init): Move declaration of i outside
        ifdef.

2006-01-11  Jeff Law  <law@redhat.com>

        * tree-ssa-threadupdate.c (threaded_edges): New VEC to
        hold edge pairs.
        (mark_threaded_blocks, register_jump_thread): New functions.
        (thread_through_all_blocks): Remove unwanted argument.  No
        longer rely on e->aux to communicate thread target info.
        Call mark_threaded_blocks.  Release the threaded_blocks
        bitmap and threaded_edges vector when complete.
        * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
        (threaded_blocks): Remove.
        (tree_ssa_dominator_optimize): Remove initialization and
        finalization of threaded_blocks.  Simplify call to
        thread_through_all_blocks.
        (thread_across_edge): Call register_jump_thread rather than
        storing thread information into e->aux.
        (free_all_edge_infos): Simplify now that e->aux is no longer
        used to communicate with thread_through_all_blocks.
        * tree-flow.h (thread_through_all_blocks): Update prototype.
        (register_jump_thread): Prototype.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * df-core.c (df_compact_blocks, df_bb_replace): Use
        SET_BASIC_BLOCK instead of BASIC_BLOCK.

2006-01-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/25734
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
        stop propagation after successful propagation to the LHS.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (control_flow_graph): Change the type of
        x_basic_block_info to VEC(basic_block,gc) *.
        (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
        basic_block_info.
        (SET_BASIC_BLOCK): New.
        * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
        instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfglayout.c (fixup_reorder_chain): Likewise.
        * cfgrtl.c (create_basic_block_structure,
        rtl_create_basic_block): Likewise.
        * ifcvt.c (find_if_case_1): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
        Likewise.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * Makefile.in: Removed rotted odf.c entry.

2006-01-11  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25706
        * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
        ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
        ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
        output pattern modifier, not %e.
        * config/cris/cris.c (cris_op_str): Update comment about pattern
        modifier.
        (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
        before falling through into...
        <case 'E'>: Redefined from old 'e' case.

2006-01-11  Jan Hubicka  <jh@suse.cz>

        PR target/25042
        * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128

2006-01-11  Jan Hubicka  <jh@suse.cz>

        * i386.h (TARGET_DECOMPOSE_LEA): Kill.
        * i386.c (x86_decompose_lea): Kill.
        (ix86_rtx_costs): Kill.

2006-01-11  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_insert_node_to_hashtable): New function.
        * cgraph.h (cgraph_node): Add inline_decl.
        (cgraph_insert_node_to_hashtable): Declare.
        (save_inline_function_body): Declare.
        * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
        clones.
        (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
        (cgraph_function_versioning): Update call of tree_function_versioning.
        (save_inline_function_body): New function.
        * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
        saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
        * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
        (cgraph_default_inline_p): Likewise.
        (cgraph_decide_inlining_incrementally): Likewise.
        * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
        (copy_bb): Kill saving; do updating of clones.
        (copy_cfg_body): Kill saving.
        (initialize_inlined-parameters): Likewise.
        (expand_call_inline): Likewise.
        (save_body): Kill.
        (tree_function_versioning): New parameter "update_clones".
        (inlining_p): Kill saving.
        * tree-inline.h (tree_function_versioning): Update prototype.
        * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
        saving.

2006-01-11  Ian Lance Taylor <ian@airs.com>

        * combine.c (struct undo): Remove is_int.  Enumify types of undos.
        Allow undoing set of machine mode.
        (do_SUBST): Use enums instead of is_int.
        (do_SUBST_MODE): New function.
        (SUBST_MODE): New macro.
        (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
        reg and trying to replace reg_regno_rtx with a new register.
        (undo_all): Use new enums, handle undoing a PUT_MODE change.
        (simplify_set): Use SUBST_MODE.
        (distribute_notes): Remove code that tried to update reg notes
        for regno_reg_rtx changes.

2006-01-11  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/23109
        PR tree-optimization/23948
        PR tree-optimization/24123

        * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
        * tree-cfg.c (single_noncomplex_succ): New.
        * tree-flow.h (single_noncomplex_succ): Declare it.
        * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
        * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
        (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
        insert_bb, register_division_in, insert_reciprocals,
        replace_reciprocal, free_bb): New.
        (execute_cse_reciprocals_1): Rewritten.
        (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
        Do not commit any edge insertion.  Always compute dominators and
        create the allocation pool.
        * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
        * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
        * targhooks.c (default_min_divistions_for_recip_mul): New.
        * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
        * passes.c (init_optimization_passes): Run recip after tree loop
        optimizations.
        * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.

2006-01-11  Danny Berlin <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
        DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
        DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
        DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
        DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
        DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
        DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
        DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
        DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
        DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
        DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
        DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
        DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
        DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
        DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
        DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
        DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
        DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
        DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
        DF_SCAN_POST_ALLOC): New macros.
        (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
        df_free_bb_function, df_local_compute_function, df_init_function,
        df_dataflow_function, df_confluence_function_0,
        df_confluence_function_n, df_transfer_function,
        df_finalizer_function, df_free_function, df_dump_problem_function,
        df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
        df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
        df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
        df_urec_bb_info, ) New types.
        (df_invalidated_by_call, df_all_hard_regs, df_state) New public
        variables.
        (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
        df_analyze_simple_change_some_blocks,
        df_analyze_simple_change_one_block, df_compact_blocks,
        df_bb_replace, df_bb_regno_last_use_find,
        df_bb_regno_first_def_find, df_bb_regno_last_def_find,
        df_insn_regno_def_p, df_find_def, df_find_use,
        df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
        df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
        df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
        debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
        debug_df_chain, df_get_dependent_problem, df_chain_create,
        df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
        df_grow_bb_info, df_chain_dump, df_print_bb_index,
        df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
        df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
        df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
        df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
        df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
        df_rescan_blocks, df_ref_create, df_get_artificial_defs,
        df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
        df_ref_remove, df_insn_refs_delete, df_refs_delete,
        df_reorganize_refs, df_set_state, df_hard_reg_init,
        df_read_modify_subreg_p) New public functions.
        * df-core.c: The core dataflow solver and glue routines for rtl
        dataflow.
        (df_init, df_add_problem, df_set_blocks, df_finish,
        df_hybrid_search_forward, df_hybrid_search_backward,
        df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
        df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
        df_bb_regno_last_use_find, df_bb_regno_first_def_find,
        df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
        df_reg_defined, df_find_use, df_reg_used, df_dump,
        df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
        df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
        debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
        debug_df_useno, reset_df_after_reload): New functions.
        * df-scan.c: The scanning fuctions, once in df.c, completely
        rewritten so that they now fully model the functionality of
        register usage at the backend.
        (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
        df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
        df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
        df_grow_insn_info, df_rescan_blocks, df_ref_create,
        df_get_artificial_defs, df_get_artificial_uses,
        df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
        df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
        df_refs_delete, df_reorganize_refs, df_set_state,
        df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
        df_def_record_1, df_defs_record, df_uses_record,
        df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
        df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
        df_record_exit_block_uses, df_hard_reg_init): New functions.

        * df-problems.c: Seven concrete dataflow problems that use the
        scanning in df-scan.c and are solved by the engine in df-core.c.
        (df_get_dependent_problem, df_chain_create, df_chain_unlink,
        df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
        df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
        df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
        df_ru_free_bb_info, df_ru_alloc,
        df_ru_bb_local_compute_process_def,
        df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
        df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
        df_ru_transfer_function, df_ru_free, df_ru_dump,
        df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
        df_rd_free_bb_info, df_rd_alloc,
        df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
        df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
        df_rd_transfer_function, df_rd_free, df_rd_dump,
        df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
        df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
        df_lr_local_compute, df_lr_init, df_lr_confluence_0,
        df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
        df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
        df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
        df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
        df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
        df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
        df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
        df_urec_mark_reg_change, df_urec_check_earlyclobber,
        df_urec_mark_reg_use_for_earlyclobber,
        df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
        df_urec_local_compute, df_urec_init, df_urec_local_finalize,
        df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
        df_urec_dump, df_urec_add_problem, df_chain_alloc,
        df_chain_create_bb_process_use, df_chain_create_bb,
        df_chain_finalize, df_chain_free, df_chains_dump,
        df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
        df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
        df_reg_lifetime): New functions.
        * df.c: Deleted file.
        * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
        consistent with new df api.
        * modulo-sched.c (sms_schedule, rest_of_handle_sms,
        rest_of_handle_sms): Ditto.
        * web.c (unionfind_union, union_defs, entry_register, web_main):
        Ditto.
        * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
        invariant_expr_equal_p, find_defs, check_dependencies,
        find_invariant_insn, find_invariants_to_move, move_invariant_reg,
        free_inv_motion_data, move_loop_invariants): Ditto.
        * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
        Update dependencies.
        (odf.c): Added defective entry that was deleted later in day.
        * sched-deps.c (sched_analyze_1): Ditto.

2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-operands.c (get_expr_operands): Record addressable
        variables directly.  Do not call add_stmt_operands for CONST_DECLs
        and ARRAY_DECLs.
        (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
        (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

        * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
        function returns true in the positive case.

2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/20754
        * config/pa/pa.md: Create separate 32 and 64-bit move patterns
        for SI, DI, SF and DF modes.  Add alternatives to copy between
        general and floating point registers to the 32-bit patterns.
        * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
        * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
        (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
        generating 64-bit code.
        * config/pa/pa.c (output_move_double): Handle copies between general
        and floating registers.

2006-01-10  Stuart Hastings  <stuart@apple.com>

        * config/i386/i386.md (set_got): Update.
        (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
        (builtin_setjmp_receiver): Mach-O support.
        * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
        (GOT_SYMBOL_NAME): Define.
        (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
        (TARGET_DEEP_BRANCH_PREDICTION): Remove.
        * config/i386/i386.c (override_options): Revise for Darwin.
        (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
        support.  (darwin_x86_file_end): New.  (output_set_got): Add label
        parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
        * config/i386/i386-protos.h (output_set_got): Likewise.
        * config/darwin.c (machopic_legitimize_pic_address): Update
        regs_ever_live[].

2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
        when MODE isn't BLKmode.

2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/25367
        * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.

2006-01-10  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25718
        * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
        for a negative bound.

2006-01-10  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Never override with anything constraint.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
        256 bits when optimize_size.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
        MASK_ALIGN_DOUBLE.
        * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
        * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
        arguments.

2006-01-10  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
        float modes.
        * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
        (USE_FP_FOR_ARG): Reject decimal float modes.
        (function_arg_advance): Likewise.
        (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
        (rs6000_handle_altivec_attribute): Do not permit decimal floating
        point types in AltiVec vectors.
        (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
        (rs6000_libcall_value): Likewise.

2006-01-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/ieee754-df.S: New file.
        * config/xtensa/ieee754-sf.S: New file.
        * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
        (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
        * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.

2006-01-09  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/predicates.md (binary_float_operator,
        binary_logical_operator, commutative_float_operator,
        equality_comparison_operator, greater_comparison_operator,
        less_comparison_operator, logical_operator,
        noncommutative_float_operator, shift_operator,
        symbol_ref_operand, unary_float_operator): Remove redundant
        conditionals.

2006-01-09  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
        code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
        now unused arguments.  Callers updated.
        (eliminate_redundant_computations): Remove now unused arguments,
        callers updated.
        (local_fold): Remove, no longer used.
        (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
        and moved to...
        * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
        (simplify_cond): New function.
        (forward_propagate_into_cond): Call simplify_cond.

2006-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
        (*vec_extractv2di_1_sse): New.

2006-01-09  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.

2006-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for): Remove
        anyoffset argument.
        (get_constraint_for_component_ref): Likewise.
        (do_deref): Likewise.
        (get_constraint_for): Likewise.
        (do_structure_copy): Likewise.
        (handle_ptr_arith): Likewise.
        (find_func_aliases): Likewise.  Remove unused need_anyoffset
        variable.

2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (CONST_OK_FOR_K16): Define.
        (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
        (EXTRA_CONSTRAINT_C16): Remove.
        (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
        (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
        EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
        * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
        constants of SHmedia.  Handle nested constant expressions of
        SHmedia correctly.
        (andcosts): Fix the costs for SHmedia constants.
        (sh_rtx_costs): Take account of outer_code for SHmedia constants.
        * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
        (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
        (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
        (movv4hi_i, movv2si_i): Likewise.
        (movsi_const): Adjust the second operand of ior so to match with
        the Csu constraint.
        (movdi_const, movdi_const_32bit): Likewise.
        (movdi_const_16bit+1): Don't sign-extend LOW.
        (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
        step.
        (*double_shori): Fix the split condition.  Use GEN_INT instead
        of get_int_mode calls.  Mask lower 16-bit of the argument of
        the last GEN_INT.
        (sym2GOTPLT): Remove.
        (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
        gen_rtx_UNSPEC.
        * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
        instead of EXTRA_CONSTRAINT_C16.

2006-01-07  Ian Lance Taylor  <ian@airs.com>
            David Edelsohn  <edelsohn@gnu.org>

        PR rtl-optimization/25662
        * optabs.c (simplify_expand_binop): Use simplify_binary_operation
        for constant operands instead of simplify_gen_binary.
        * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
        after trying simplify_binary_operation

2006-01-06  Daniel Berlin  <dberlin@dberlin.org>

        * tree.c (iterative_hash_expr): Hash decls based on UID.

2006-01-06  Eric Christopher  <echristo@apple.com>

        * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
        (TARGET_UNWIND_EMIT): Fix spelling.
        * target.h (gcc_target): Add except_table_label.
        * except.c (output_function_exception_table): Use.
        * varasm.c (default_emit_except_table_label): New.
        * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
        define.
        (asm_out): Add here.
        * output.h (default_emit_except_table_label): Prototype.
        * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
        * config/darwin.c (darwin_emit_except_table_label): Define.
        * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.

2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/18527
        * tree-ssa-loop-niter.c (number_of_iterations_cond,
        number_of_iterations_special, number_of_iterations_exit):
        Move base and step of an iv to a single structure.  Add
        no_overflow flag, and use it in # of iterations analysis.
        * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
        folded_casts argument.
        (simple_iv): Pass base and step in a structure.  Set no_overflow
        flag.
        (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
        Evaluate expensiveness of computing # of iterations instead of
        the final expression.
        * tree-scalar-evolution.h (affine_iv): New structure.
        (simple_iv): Declaration changed.
        * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
        * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
        find_givs_in_stmt): Changed due to simple_iv change.

2006-01-06  Jeff Law  <law@redhat.com>

        PR ada/24994
        * tree-cfg.c (bsi_replace): Rename final argument from
        PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
        change (stmt -> orig_stmt).
        * tree-eh.c (verify_eh_throw_stmt_node): New function.
        (bsi_remove): Add new argument.  Remove EH information
        if requested.
        (verify_eh_throw_table_statements): New function.
        (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
        updated.
        * tree-optimize.c (execute_free_cfg_annotations): Verify
        the EH throw statement table after removing annotations.
        * except.h (verify_eh_throw_table_statements): Prototype.
        * tree-flow.h (bsi_remove): Update prototype.
        * tree-vrp.c (remove_range_assertions): Add new argument to
        bsi_remove call.
        * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
        * tree-complex.c (expand_complex_div_wide): Likewise.
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
        * tree-tailcall.c (eliminate_tailcall): Likewise.
        * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
        * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
        * tree-nrv.c (tree_nrv): Likewise.
        * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
        * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
        (combine_blocks): Likewise.
        * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
        * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
        (cleanup_control_flow): Likewise.
        (remove_forwarder_block): Likewise.
        * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
        * tree-sra.c (sra_replace): Likewise.
        * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
        (forward_propagate_single_use_vars): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.
        * tree-vect-transform.c (vect_transform_loop): Likewise.
        * tree-outof-ssa.c (rewrite_trees): Likewise.
        * tree-cfg.c (make_goto_expr_edges): Likewise.
        (cleanup_dead_labels): Likewise.
        (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
        (bsi_move_before, bsi_move_after): Likewise.
        (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
        (tree_redirect_edge_and_branch, tree_split_block): Likewise.

2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25528
        * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
        and IMAGPART_EXPR.
        * tree-flow-inline.h (var_can_have_subvars): Handle complex types
        on non gimple variables.  Also add checks at the top for decls and
        mtags.
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
        complex types.
        * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
        and IMAGPART_EXPR for creating MUST_DEFs.
        (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
        and NAME_MEMORY_TAG separately from the DECLs.

2006-01-06  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (mark_new_vars_to_rename): Create stmt
        annotation, if necessary.
        * tree-ssa-pre.c (create_expression_by_pieces): Remove
        redundant calls to update_stmt.
        * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
        Likewise.

2006-01-05  Richard Henderson  <rth@redhat.com>

        * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

        * c-typeck.c: Update copyright date.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

        * c-typeck.c (build_c_cast): Always warn when casting
        from a pointer to an integer of different size, even if
        the node was constant.

2006-01-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22555
        * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
        if one structure field is an array.
        * tree-ssa-operands.c (get_expr_operands): Continue scanning
        operands even if we found a subvar, but ignore VOPs in this
        case.
        * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
        for renaming.
        * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.

2006-01-05  Richard Earnshaw  <rearnsha@arm.com>

        PR middle-end/24998
        * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.

2006-01-05  Richard Guenther  <rguenther@suse.de>
            Diego Novillo  <dnovillo@redhat.com>

        * tree-pass.h (TODO_remove_unused_locals): Define.
        * gimple-low.c (expand_var_p, remove_useless_vars,
        pass_remove_useless_vars): Remove.  Update all users.
        * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
        (remove_unused_locals): New function.
        * tree-flow.h (remove_unused_locals): Declare.
        * passes.c (execute_todo): Call remove_unused_locals if
        TODO_remove_unused_locals is set.
        * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
        * tree-ssa-dce.c (pass_dce): Likewise.
        * tree-outof-ssa.c (pass_del_ssa): Likewise.

2006-01-05  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (struct fieldoff): Decompose field to
        type, size and decl.
        * tree-ssa-alias.c (create_sft): Take type as parameter.
        (create_overlap_variables_for): Store type, size and decl
        in the fieldoff structure.
        * tree-ssa-structalias.c (fieldoff_compare): Adjust users
        of struct fieldoff.
        (push_fields_onto_fieldstack): Likewise.
        (create_variable_info_for): Likewise.  Use offset for the
        SFT name if the decl is not available.

2006-01-04  Paul Brook  <paul@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.

2006-01-04  Daniel Berlin  <dberlin@dberlin.org>

        * lambda-code.c (can_put_in_inner_loop): Relax
        restrictions.
        (can_put_after_inner_loop): New function.
        (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
        (perfect_nestify): Change to make copies and modify uses.

2006-01-04  Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
        via integer constant.
        (pragma_lex): Remove.
        * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
        rather than parsing it.
        * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
        handle_pragma_extern_prefix): Add %< %> quotes.
        (registered_pragmas): New.
        (c_register_pragma_1): New.
        (c_register_pragma): Use it.
        (c_register_pragma_with_expansion): Likewise.
        (c_invoke_pragma_handler): New.
        (init_pragma): Use cpp_register_deferred_pragma directly for
        pch_preprocess.
        * c-pragma.h (enum pragma_kind): New.
        (pragma_handler): New.
        (c_invoke_pragma_handler): Declare.
        * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
        CPP_PRAGMA_EOL.
        * c-common.h (c_common_pch_pragma): Update decl.
        * Makefile.in (c-parser.o): Update dependencies.
        (GTFILES): Add c-pragma.h.
        * c-parser.c (struct c_token): Add pragma_kind.
        (struct c_parser): Add in_pragma.
        (c_lex_one_token): Always initialize keyword and pragma_kind.
        Extract data for CPP_PRAGMA.
        (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
        (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
        Don't allow CPP_PRAGMA_EOL if in_pragma.
        (c_parser_consume_pragma): New.
        (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
        (c_parser_skip_to_end_of_parameter): Likewise.
        (c_parser_skip_to_end_of_block_or_statement): Likewise.
        (c_parser_skip_to_pragma_eol): New.
        (c_parser_external_declaration): Handle CPP_PRAGMA.
        (c_parser_compound_statement_nostart): Likewise.
        (c_parser_statement_after_labels): Likewise.
        (c_parser_pragma): New.
        (pragma_lex): Likewise.
        (c_parser_pragma_pch_preprocess): New.
        (c_parser_new): Merge into ...
        (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.

2006-01-04  Jeff Law  <law@redhat.com>

        PR ada/24994
        * tree-cfg.c (bsi_replace): Remove the original statement
        from the EH throw statement table.

2006-01-04  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
        make the prototype extern "C" and add throw ().

        PR target/25554
        * config/i386/i386.md (testqi_ext_3): Ensure len is positive
        and pos non-negative and pos + len <= 32.
        (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
        drop pos + len < HOST_BITS_PER_WIDE_INT test.
        (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.

        PR c/25559
        * c-common.c (handle_vector_size_attribute): Reject zero vector size
        as well as sizes not multiple of component size.

        PR debug/25562
        * function.c (instantiate_expr): New function.
        (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
        walk its DECL_VALUE_EXPR with instantiate_expr.

        * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
        DW_OP_deref{,_size} if address isn't going to be added.

2006-01-04  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
        * config/fp-bit.c: Likewise.

2006-01-03  Daniel Berlin  <dberlin@dberlin.org>

        * dominance.c: Add comment about why we use DFS numbering
        of dominance tree.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>
            Richard Henderson  <rth@redhat.com>

        Merge from gomp-branch:
        * varasm.c (assemble_variable): Handle thread-local COMMON data.
        * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.

2006-01-03  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/25578
        * combine.c (combine_simplify_rtx, force_to_mode): Don't
        pass a parameter to simplify_shift_const if changing ASHIFTRT
        to LSHIFTRT.

2006-01-03  Adrian Straetling  <straetling@de.ibm.com>

        * builtins.c (get_builtin_sync_mem): New function.
        (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
        expand_builtin_lock_test_and_set, expand_builtin_lock_release):
        Call get_builtin_sync_mem to generate mem rtx.

2006-01-03  Richard Guenther  <rguenther@suse.de>

        PR c/25183
        * stmt.c (add_case_node): Make sure to clear overflow flags
        from ranges.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>

        Merge from gomp-branch.
        * config/sparc/sync.md: New file.
        * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
        UNSPECV_LDSTUB): New constants.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
        * config/sparc/predicates.md (memory_reg_operand): New predicate.
        * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
        prototype.

2006-01-03  Roger Sayle  <roger@eyesopen.com>

        * combine.c (reg_subword_p): New predicate to test whether the
        destination of a set refers to a subword/piece of a register.
        (try_combine): Generalize the code to merge the setting of a
        pseudo to a constant followed by a set of a subword of that
        register to a constant.

2006-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (control_flow_graph): Change the type of
        x_label_to_block_map to VEC(basic_block,gc) *.
        * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
        set_bb_for_stmt): Adjust the uses of x_label_to_block_map.

        * tree-ssa-propagate.c (cfg_blocks): Change the type to
        VEC(basic_block,heap) *.
        (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
        ssa_prop_fini): Adjust the uses of cfg_blocks.

2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>

        * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
        COMPONENT_REFs.
        * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
        hashing trees instead of a pointer hash.
        (mem_attrs_htab_eq): Do a deep compare instead of a pointer
        compare for MEM_EXPR.

        PR rtl-optimization/25130
        * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
        when comparing MEMs for GCSE

2006-01-03  Ben Elliston  <bje@au.ibm.com>

        * targhooks.h (default_decimal_float_supported_p): Declare.
        * targhooks.c (default_decimal_float_supported_p): Define.
        * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
        `default_decimal_float_supported_p'.
        * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.

2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (apply_distributive_law <SUBREG>): Check
        TRULY_NOOP_TRUNCATION.

2006-01-02  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (have_switched_text_section): Delete.
        (have_multiple_function_sections): New.
        (have_location_lists): Make 'bool'.
        (add_AT_loc_list): Use 'true' not '1'.
        (dwarf2out_switch_text_section): Set have_multiple_function_sections.
        (output_loc_list): Use have_multiple_function_sections.
        (output_ranges): Likewise.
        (dwarf2out_begin_function): Set have_multiple_function_sections if
        necessary.
        (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
        Check function_section rather than DECL_SECTION_NAME.
        (dwarf2out_finish): Use have_multiple_function_sections.
        Don't clear have_location_lists.

2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
            Jan Hubicka  <jh@suse.cz>

        * cfglayout.c (fixup_reorder_chain): Remove kludge for the
        case of conditional jump jumping to the next instruction.
        * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
        cases of conditional jump jumping to the next instruction.

2006-01-02  Jan Hubicka  <jh@suse.cz>

        * i386.c (*_cost): Add COSTS_N_INSNS.
        (ix86_rtx_costs): Do not use COSTS_N_INSNS.

2006-01-02  Paolo Bonzini  <bonzini@gnu.org>

        PR target/25259
        * Makefile.in (DECNUMINC): Include libdecnumber's build directory.

2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        * config/arm/arm.c (all_fpus): Fix comment typo.
        * config/darwin.c: Likewise.
        * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
        * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
        * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.

2006-01-01  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
        (rs6000_split_compare_and_swapqhi): New.
        * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
        (sync_compare_and_swapqhi_internal): New.
        * config/rs6000/rs6000-protos.h: Declare.