* config/sh/linux-atomic.asm (ATOMIC_COMPARE_AND_SWAP): Rename

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

2009-08-03  SUGIOKA Toshinobu  <sugioka@itonet.co.jp>

        * config/sh/linux-atomic.asm (ATOMIC_COMPARE_AND_SWAP): Rename
        __sync_compare_and_swap_* to __sync_val_compare_and_swap_*.

2009-08-03  Richard Guenther  <rguenther@suse.de>

        * tree.c (make_vector_type): Build a main variant first,
        get the canonical one and then build the variant.
        * tree-ssa.c (useless_type_conversion_p_1): Handle
        fixed-point types.
        (useless_type_conversion_p): Conversions to pointers to
        incomplete record types are useless.

2009-08-03  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (pass_warn_unused_result): Mark name that no dump
        file will be created.
        * omp-low.c (pass_diagnose_omp_blocks): Likewise.
        * toplev.c (compile_file): Adjust comment.

2009-08-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh-protos.h (sh_promote_function_mode): Remove.
        * config/sh/sh.c (sh_promote_function_mode): Wrap long lines.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS): Remove.
        (sh_promote_function_mode): Fix typo.

2009-08-03  Andreas Krebbel  <krebbel1@de.ibm.com>

        * explow.c (promote_mode): Mark TYPE and PUNSIGNEDP as
          possibly unused.

2009-08-02  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (pa_promote_function_mode): Remove ATTRIBUTE_UNUSED from
        declaration arguments.

2009-08-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_expand_fp_compare): Use const0_rtx instead
        of GEN_INT (0x00) and const1_rtx instead of GEN_INT (0x01).
        (ix86_split_ashl): Ditto.
        (ix86_expand_vector_init_one_nonzero): Ditto.
        (ix86_expand_vector_set): Ditto.
        (ix86_expand_reduc_v4sf): Ditto.

2009-08-02  Paolo Bonzini  <bonzini@gnu.org>

        * explow.c (promote_function_mode): Remove assert.
        * config/sh/sh.c (sh_promote_function_mode): Declare.

2009-08-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/pa.c (pa_promote_function_mode): Declare.
        Change to static.  Fix promote_mode call.

        * gthr-dce.h (CONST_CAST2): Define if not defined.
        (__gthread_setspecific): Use CONST_CAST2 to fix warning.

        * config.gcc (hppa[12]*-*-hpux10*): Add stdint support.

2009-08-01  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (store_constructor): Use promote_decl_mode.  Remove
        now write-only variable unsignedp.
        (expand_expr_real_1): Use promote_decl_mode.
        * expr.h (promote_function_mode, promote_decl_mode): New.
        (promote_mode): Remove last argument.
        * function.c (assign_temp): Drop last argument of promote_mode.
        (assign_parm_find_data_types): Use promote_function_mode.
        (assign_parm_setup_reg): Likewise.
        (expand_function_end): Use promote_function_mode.
        * calls.c (initialize_argument_information): Use promote_function_mode.
        (precompute_arguments): Use promote_mode instead of checking if
        only PROMOTE_FUNCTION_MODE is defined.
        (expand_call): When making sibcall decisions, use promote_function_mode.
        Below, remove an if for targetm.calls.promote_function_return and
        and use promote_function_mode.
        (emit_library_call_value_1): Use promote_function_mode, fix bug
        where promote_mode was passed FOR_CALL == 0 for a return value in an
        assertion.
        * cfgexpand.c (expand_one_register_var): Use promote_decl_mode.
        * explow.c (promote_function_mode, promote_decl_mode): New.
        (promote_mode): Keep only the FOR_CALL == 0 case.
        * combine.c (setup_incoming_promotion): Remove test of
        promote_function_args.  Use promote_function_mode.
        * stmt.c (expand_value_return): Use promote_decl_mode.
        (expand_decl): Use promote_decl_mode.

        * expr.c (store_constructor): Use promote_decl_mode.  Remove
        now write-only variable unsignedp.
        (expand_expr_real_1): Use promote_decl_mode.
        * expr.h (promote_function_mode, promote_decl_mode): New.
        (promote_mode): Remove last argument.
        * function.c (assign_temp): Drop last argument of promote_mode.
        (assign_parm_find_data_types): Use promote_function_mode.
        (assign_parm_setup_reg): Likewise.
        (expand_function_end): Use promote_function_mode.
        * calls.c (initialize_argument_information): Use promote_function_mode.
        (precompute_arguments): Use promote_mode instead of checking if
        only PROMOTE_FUNCTION_MODE is defined.
        (expand_call): When making sibcall decisions, use promote_function_mode.
        Below, remove an if for targetm.calls.promote_function_return and
        and use promote_function_mode.
        (emit_library_call_value_1): Use promote_function_mode, fix bug
        where promote_mode was passed FOR_CALL == 0 for a return value in an
        assertion.
        * cfgexpand.c (expand_one_register_var): Use promote_decl_mode.
        * explow.c (promote_function_mode, promote_decl_mode): New.
        (promote_mode): Keep only the FOR_CALL == 0 case.
        * combine.c (setup_incoming_promotion): Remove test of
        promote_function_args.  Use promote_function_mode.
        * stmt.c (expand_value_return): Use promote_decl_mode.
        (expand_decl): Use promote_decl_mode.

        * explow.c (promote_function_mode): Just call the target hook.
        * targhooks.c (default_promote_function_mode,
        default_promote_function_mode_always_promote): New.
        * targhooks.h (default_promote_function_mode,
        default_promote_function_mode_always_promote): Declare.
        * target.h (promote_function_args, promote_function_return): Remove.
        (promote_function_mode): New.
        * target-def.h (TARGET_PROMOTE_FUNCTION_ARGS,
        TARGET_PROMOTE_FUNCTION_RETURN): Remove.
        (TARGET_PROMOTE_FUNCTION_MODE): New.
        (TARGET_CALLS): Adjust.
        * system.h (TARGET_PROMOTE_FUNCTION_ARGS,
        TARGET_PROMOTE_FUNCTION_RETURN, PROMOTE_FUNCTION_MODE): Poison.

        * config/s390/s390.h (PROMOTE_FUNCTION_MODE): Move...
        * config/s390/s390.c (s390_promote_function_mode): ... here,
        with pointer handling.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS, TARGET_PROMOTE_FUNCTION_RETURN): Remove.

        * config/sparc/sparc.h (PROMOTE_FUNCTION_MODE): Move...
        * config/sparc/sparc.c (sparc_promote_function_mode): ... here,
        with pointer handling.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS, TARGET_PROMOTE_FUNCTION_RETURN): Remove.
        
        * config/sh/sh-protos.h (sh_promote_function_mode): New.
        * config/sh/sh.c (sh_promote_function_mode): New.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS, TARGET_PROMOTE_FUNCTION_RETURN): Remove.

        * config/cris/cris.h (PROMOTE_FUNCTION_MODE): Move...
        * config/cris/cris.c (cris_promote_function_mode): ... here.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS): Remove.

        * config/mmix/mmix.h (PROMOTE_FUNCTION_MODE): Move...
        * config/mmix/mmix.c (mmix_promote_function_mode): ... here.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS): Remove.

        * config/arm/arm.h (PROMOTE_FUNCTION_MODE): Move...
        * config/arm/arm.c (arm_promote_function_mode): ... here, without
        complex type handling.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_ARGS, TARGET_PROMOTE_FUNCTION_RETURN): Remove.

        * config/pa/pa.c (pa_promote_function_mode): New.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_RETURN): Remove.

        * config/alpha/alpha.c (TARGET_PROMOTE_FUNCTION_ARGS,
        TARGET_PROMOTE_FUNCTION_RETURN): Remove.
        (TARGET_PROMOTE_FUNCTION_MODE): Define equivalently.
        * config/xtensa/xtensa.c: Likewise.
        * config/stormy16/stormy16.c: Likewise.
        * config/iq2000/iq2000.c: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/picochip/picochip.c: Likewise.
        * config/arc/arc.c: Likewise.
        * config/mcore/mcore.c: Likewise.
        * config/score/score.c: Likewise.
        * config/mips/mips.c: Likewise.
        * config/bfin/bfin.c: Likewise.
        * config/ia64/ia64.c: Likewise (disabled though).

        * config/frv/frv.h: Remove pointless remark.

        * doc/tm.texi (PROMOTE_FUNCTION_MODE,
        TARGET_PROMOTE_FUNCTION_ARGS,
        TARGET_PROMOTE_FUNCTION_RETURN): Consolidate into...
        (TARGET_PROMOTE_FUNCTION_MODE): ... this.

2009-08-01  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi (-fgraphite-force-parallel): Renamed
        -floop-parallelize-all.
        * toplev.c (process_options): Rename flag_graphite_force_parallel to
        flag_loop_parallelize_all.
        * tree-ssa-loop.c (gate_graphite_transforms): Same.
        * graphite.c (graphite_transform_loops): Same.
        * common.opt: Same.
        * graphite-poly.c (apply_poly_transforms): Same.

2009-07-31  Richard Earnshaw  <rearnsha@arm.com>

        PR tree-optimization/40914
        * ipa-prop.c (ipa_get_ptr_load_param): New argument use_delta,
        if set, then check the delta field of the PMF record.
        (ipa_get_stmt_member_ptr_load_param): Propagate new param use_delta.
        (ipa_analyze_call_uses): Handle machines where the vbit for a PMF
        call is stored in the delta.

2009-07-31  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (*clear_upper32_dext): New pattern.

2009-07-31  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/bsd.h (ASM_BYTE): New define.
        * config/i386/darwin.h (ASM_BYTE): Rename from ASM_BYTE_OP.
        * config/i386/att.h (ASM_BYTE): New define. Use ASM_BYTE instead of
        .byte.  Use fputs or putc instead of fprintf where appropriate.
        * config/i386/i386-interix.h: Use ASM_BYTE instead of .byte.  Use
        fputs or putc instead of fprintf where appropriate.
        * config/i386/i386elf.h: Ditto.
        * config/i386/sysv4.h: Ditto.
        
        * config/i386/i386.c (TARGET_ASM_BYTE_OP): New define.
        * config/i386/i386.md (x86_sahf_1): Use ASM_BYTE instead of .byte.
        (*tls_global_dynamic_64): Ditto.

2009-07-31  Christian Bruel  <christian.bruel@st.com>   

        * gcc/config.gcc (sh*-*-elf): test with_libgloss.
        
2009-07-31  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/arm.c (arm_arm_address_cost): Fix typo. 
        Remove dead code for MINUS.

2009-07-31  Anthony Green  <green@moxielogic.com>

        * config/moxie/moxie.c (moxie_expand_prologue): Use $r5 instead of
        $r12 in prologue.
        (moxie_expand_epilogue): Ditto for epilogue.
        (moxie_setup_incoming_varargs): ABI change.  Use 5 registers for
        incoming arguments.
        (moxie_function_arg): Ditto.
        (moxie_pass_by_reference): Ditto.
        (moxie_arg_partial_bytes): Ditto.
        * config/moxie/moxie.h (CALL_USED_REGISTERS): Ditto.
        (FUNCTION_ARG_ADVANCE) Ditto.
        (REG_PARM_STACK_SPACE) Ditto.
        (FUNCTION_ARG_REGNO_P) Dito.

        * config.gcc: Add moxie linux config support.
        * gcc/config/moxie/uclinux.h: New file.

2009-07-31  DJ Delorie  <dj@redhat.com>

        * config/sh/sh.md (UNSPECV_SP_SWITCH_B): New.
        (UNSPECV_SP_SWITCH_E): New.
        (sp_switch_1): Change to an unspec.
        (sp_switch_2): Change to an unspec.  Don't use post-inc when we
        replace $r15.
        * config/sh/sh.c (sh_expand_prologue): Use the constant pool to
        reference the new stack's address

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * Makefile.in (OBJS-common): Added dependence on graphite-blocking.o,
        graphite-clast-to-gimple.o, graphite-dependences.o,
        graphite-interchange.o, graphite-poly.o, graphite-ppl.o,
        graphite-scop-detection.o, graphite-sese-to-poly.o, and sese.o.
        (graphite-blocking.o,
        graphite-clast-to-gimple.o, graphite-dependences.o,
        graphite-interchange.o, graphite-poly.o, graphite-ppl.o,
        graphite-scop-detection.o, graphite-sese-to-poly.o, and sese.o): New.
        * cfgloop.c (alloc_loop): Set loop->can_be_parallel to false.
        * cfgloop.h (struct loop): Add can_be_parallel field.
        * common.opt (fgraphite-identity): Moved up.
        (fgraphite-force-parallel): New flag.
        * graphite.c: Rewrite.
        * graphite.h: Rewrite.
        * passes.c (init_optimization_passes): Schedule a pass of DCE and LIM
        after Graphite.
        * toplev.c (graphite_out_file): New file descriptor.
        (graphite_in_file): New.
        (process_options): flag_graphite_force_parallel cannot be used without
        Graphite.
        * tree-ssa-loop.c: Include toplev.h.
        (gate_graphite_transforms): Enable flag_graphite for
        flag_graphite_force_parallel.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * ChangeLog.graphite: New.
        * graphite-blocking.c: New.
        * graphite-clast-to-gimple.c: New.
        * graphite-clast-to-gimple.h: New.
        * graphite-dependences.c: New.
        * graphite-dependences.h: New.
        * graphite-interchange.c: New.
        * graphite-poly.c: New.
        * graphite-poly.h: New.
        * graphite-ppl.c: New.
        * graphite-ppl.h: New.
        * graphite-scop-detection.c: New.
        * graphite-scop-detection.h: New.
        * graphite-sese-to-poly.c: New.
        * graphite-sese-to-poly.h: New.
        * sese.c: New.
        * sese.h: New.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-chrec.c (evolution_function_right_is_integer_cst): New.
        * tree-chrec.h (evolution_function_right_is_integer_cst): Declared.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-chrec.c (operator_is_linear): Handle BIT_NOT_EXPR.
        (scev_is_linear_expression): Return false if the evolution is not
        affine multivariate.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-data-ref.c (graphite_find_data_references_in_stmt): New.
        * tree-data-ref.h (graphite_find_data_references_in_stmt): Declared.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-data-ref.c (debug_data_references): New.
        (debug_data_reference): New.
        * tree-data-ref.h (debug_data_references): Declared.
        (debug_data_reference): Declared.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-data-ref.c (stmt_simple_memref_p: Removed.
        * tree-data-ref.h (scop_p): Removed.
        (struct data_reference): Remove field scop.
        (DR_SCOP): Removed.
        (stmt_simple_memref_p): Removed.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * cfgloop.h (create_empty_loop_on_edge): Pass an extra argument.
        * cfgloopmanip.c (create_empty_loop_on_edge): Leave the loop_latch
        basic block empty.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi (-fgraphite-force-parallel): Documented.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi (-fgraphite-identity): Documented.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c: Fix comment.
        (instantiate_scev_1): Return unknow from scev instantiation if the
        result is not above instantiate_below.

2009-07-30  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop): Not
        static anymore.  Instantiate the symbols that may have been introduced
        by chrec_apply.
        * tree-scalar-evolution.h (compute_overall_effect_of_inner_loop):
        Declared.

2009-07-30  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_asm_init_sections): Add section flags and
        .vliw directive to VLIW sections.

2009-07-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * Makefile.in (AUTOCONF, ACLOCAL, ACLOCAL_AMFLAGS, aclocal_deps):
        New variables.
        ($(srcdir)/configure, $(srcdir)/aclocal.m4): New rules.
        (AUTOHEADER): New variable.
        ($(srcdir)/cstamp-h.in): Use it.

2009-07-30  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Pat Haugen  <pthaugen@us.ibm.com>
            Revital Eres <ERES@il.ibm.com>

        * config/rs6000/vector.md (VEC_F): Add VSX support.
        (VEC_A): Ditto.
        (VEC_N): Ditto.
        (mov<mode>): Ditto.
        (vector_load_<mode>): Ditto.
        (vector_store_<mode>): Ditto.
        (vector GPR move split): Ditto.
        (vec_reload_and_plus_<mptrsize>): Ditto.
        (vec_reload_and_reg_<mptrsize>): Ditto.
        (add<mode>3): Ditto.
        (sub<mode>3): Ditto.
        (mul<mode>3): Ditto.
        (neg<mode>2): Ditto.
        (abs<mode>2): Ditto.
        (smin<mode>3): Ditto.
        (smax<mode>3): Ditto.
        (vector_eq<mode>): Ditto.
        (vector_gt<mode>): Ditto.
        (vector_ge<mode>): Ditto.
        (vector_gtu<mode>): Ditto.
        (vector_select_<mode>_uns): Ditto.
        (vector_eq_<mode>_p): Ditto.
        (vector_gt_<mode>_p): Ditto.
        (vector_ge_<mode>_p): Ditto.
        (vector_gtu_<mode>_p): Ditto.
        (cr6_test_for_zero): Ditto.
        (cr6_test_for_zero_reverse): Ditto.
        (cr6_test_for_lt): Ditto.
        (cr6_test_for_lt_reverse): Ditto.
        (xor<mode>3): Ditto.
        (ior<mode>3): Ditto.
        (and<mode>3): Ditto.
        (one_cmpl<mode>2): Ditto.
        (nor<mode>2): Ditto.
        (andc<mode>2): Ditto.
        (float<VEC_int<mode>2): Ditto.
        (unsigned_float<VEC_int><mode>2): Ditto.
        (fix_trunc<mode><VEC_int>2): Ditto.
        (fixuns_trunc<mode><VEC_int>2): Ditto.
        (vec_init<mode>):
        (vec_set<mode>): Ditto.
        (vec_extract<mode>): Ditto.
        (vec_interleave_highv4sf): Ditto.
        (vec_interleave_lowv4sf): Ditto.
        (vec_realign_load_<mode>): Ditto.
        (vec_shl_<mode>): Ditto.
        (vec_shr_<mode>): Ditto.
        (div<mode>3): New patterns for VSX.
        (vec_interleave_highv2df): Ditto.
        (vec_interleave_lowv2df): Ditto.
        (vec_pack_trunc_v2df): Ditto.
        (vec_pack_sfix_trunc_v2df): Ditto.
        (vec_pack_ufix_trunc_v2df): Ditto.
        (vec_unpacks_hi_v4sf): Ditto.
        (vec_unpacks_lo_v4sf): Ditto.
        (vec_unpacks_float_hi_v4si): Ditto.
        (vec_unpacku_float_lo_v4si): Ditto.
        (vec_unpacku_float_hi_v4si): Ditto.
        (vec_unpacks_float_lo_v4si): Ditto.
        (movmisalign<mode>): Ditto.
        (vector_ceil<mode>2): New patterns for vectorizing math library.
        (vector_floor<mode>2): Ditto.
        (vector_btrunc<mode>2): Ditto.
        (vector_copysign<mode>3): Ditto.

        * config/rs6000/predicates.md (easy_vector_constant_msb): New
        predicate for setting the high bit in each word, used for copysign.

        * config/rs6000/ppc-asm.h (f19): Whitespace.
        (f32-f63): Define if VSX.
        (v0-v31): Define if Altivec.
        (vs0-vs63): Define if VSX.

        * config/rs6000/t-rs6000 (MD_INCLUDES): Add power7.md and vsx.md.

        * config/rs6000/power7.md: New file, provide tuning parameters for
        -mcpu=power7.

        * config/rs6000/rs6000-c.c (rs6000_macro_to_expand): Add VSX support.
        (rs6000_cpu_cpp_builtins): Ditto.
        (altivec_overloaded_builtins): Ditto.
        (altivec_resolve_overloaded_builtin): Ditto.

        * config/rs6000/rs6000.opt (-mno-vectorize-builtins): Add new
        debug switch to disable vectorizing simple math builtin
        functions.

        * config/rs6000/rs6000.c (rs6000_builtin_vectorized_function):
        Vectorize simple math builtin functions.
        (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Define target
        hook to vectorize math builtins.
        (rs6000_override_options): Enable -mvsx on -mcpu=power7.
        (rs6000_builtin_conversion): Add VSX/power7 support.
        (rs6000_builtin_vec_perm): Ditto.
        (vsplits_constant): Add support for loading up a vector constant
        with just the high bit set in each part.
        (rs6000_expand_vector_init): Add VSX/power7 support.
        (rs6000_expand_vector_set): Ditto.
        (rs6000_expand_vector_extract): Ditto.
        (rs6000_emit_move): Ditto.
        (bdesc_3arg): Ditto.
        (bdesc_2arg): Ditto.
        (bdesc_1arg): Ditto.
        (rs6000_expand_ternop_builtin): Ditto.
        (altivec_expand_builtin): Ditto.
        (rs6000_expand_unop_builtin): Ditto.
        (rs6000_init_builtins): Ditto.
        (altivec_init_builtins): Ditto.
        (builtin_function_type): Ditto.
        (rs6000_common_init_builtins): Ditto.
        (rs6000_handle_altivec_attribute); Ditto.
        (rs6000_mangle_type): Ditto.
        (rs6000_vector_mode_supported_p): Ditto.
        (rs6000_mode_dependent_address): Altivec addresses with AND -16
        are mode dependent.

        * config/rs6000/vsx.md: New file for VSX support.

        * config/rs6000/rs6000.h (EASY_VECTOR_MSB): New macro for
        identifing values with just the most significant bit set.
        (enum rs6000_builtins): Add builtins for VSX.  Add simple math
        vectorized builtins.

        * config/rs6000/altivec.md (UNSPEC_VRFIP): Delete.
        (UNSPEC_VRFIM): Delete.
        (splitter for loading up vector with most significant bit): New
        splitter for vectorizing copysign.
        (altivec_vrfiz): Rename from altivec_fturncv4sf2.  Add support for
        vectorizing simple math functions.
        (altivec_vrfip): Add support for vectorizing simple math functions.
        (altivec_vrfim): Ditto.
        (altivec_copysign_v4sf3): New insn for Altivec copysign support.

        * config/rs6000/rs6000.md (UNSPEC_BPERM): New constant.
        (power7.md, vsx.md): Include for power7 support.
        (copysigndf3): Use VSX instructions if -mvsx.
        (negdf2_fpr): Ditto.
        (absdf2_fpr): Ditto.
        (nabsdf2_fpr): Ditto.
        (adddf3_fpr): Ditto.
        (subdf3_fpr): Ditto.
        (muldf3_fpr): Ditto.
        (divdf3_fpr): Ditto.
        (fix_truncdfdi2_fpr): Ditto.
        (cmpdf_internal1): Ditto.
        (fred, fred_fpr): Convert into expander/insn to add VSX support.
        (btruncdf2, btruncdf2_fpr): Ditto.
        (ceildf2, ceildf2_fpr): Ditto.
        (floordf2, floordf2_fpr): Ditto.
        (floatdidf2, floatdidf2_fpr): Ditto.
        (fmadddf4_fpr): Name insn.  Use VSX instructions if -mvsx.
        (fmsubdf4_fpr): Ditto.
        (fnmadddf4_fpr_1): Ditto.
        (fnmadddf4_fpr_2): Ditto.
        (fnmsubdf4_fpr_1): Ditto.
        (fnmsubdf4_fpr_2): Ditto.
        (fixuns_truncdfdi2): Add expander for VSX support.
        (fix_truncdfdi2): Ditto.
        (fix_truncdfsi2): Ditto.
        (ftruncdf2): Ditto.
        (btruncsf2): Whitespace.
        (movdf_hardfloat32): Add support for VSX registers.
        (movdf_softfloat32): Ditto.
        (movdf_hardfloat64): Ditto.
        (movdf_hardfloat64_mfpgpr): Ditto.
        (movdf_softfloat64): Ditto.
        (movti splitters): Add check for vector registers supporting
        TImode in the future.
        (bpermd): Add power7 bpermd instruction.

        * config/rs6000/altivec.h (vec_div): Define if VSX.
        (vec_mul): Ditto.
        (vec_msub): Ditto.
        (vec_nmadd): Ditto.
        (vec_nearbyint): Ditto.
        (vec_rint): Ditto.
        (vec_sqrt): Ditto.
        (all predicates): Use the generic builtin function, and not the V4SF
        specific function so that the predicates will work with VSX's V2DF.
        (vec_all_*): Ditto.
        (vec_any_*): Ditto.

        * doc/extend.texi (PowerPC Altivec/VSX Built-in Functions):
        Document new VSX functions and types.

        * doc/invoke.texi (PowerPc options): Document -mpopcntd, -mvsx
        switches.

        * doc/md.texi (PowerPC constraints): Document "wd", "wf", "ws",
        "wa", and "j" constraints.  Modify "v" to talk about Altivec
        instead of just vector.

2009-07-30  Andrew MacLeod  <amacleod@redhat.com>

        PR debug/26475
        * tree-into-ssa.c (insert_phi_nodes_for, rewrite_add_phi_arguments): Set
        location for phi arguments.
        (rewrite_update_phi_arguments): Find locations for reaching defs.
        * tree-ssa-threadupdate.c (create_edge_and_update_destination_phis):
        Add location to add_phi_arg calls.
        * tree-loop-districbution.c (update_phis_for_loop_copy): Add locations.
        * tree-ssa-loop-manip.c (create_iv, add_exit_phis_edge,
        split_loop_exit_edge, tree_transform_and_unroll_loop): Add locations.
        * tree-tailcall.c (add_successor_phi_arg, eliminate_tail_call,
        create_tailcall_accumulator, tree_optimize_tail_calls_1): Add locations.
        * tree.h (struct phi_arg_d): Add location_t to PHI arguments.
        * tree-phinodes.c (make_phi_node): Initialize location.
        (resize_phi_node): Initialize location to UNKNOWN_LOCATION.
        (add_phi_arg): Add location parameter.
        (remove_phi_arg_num): Move location when moving phi argument.
        * omp-low.c (expand_parallel_call, expand_omp_for_static_chunk): Set 
        location.
        * tree-vect-loop-manip.c (slpeel_update_phis_for_duplicate_loop,
        slpeel_update_phi_nodes_for_guard1,
        slpeel_update_phi_nodes_for_guard2,
        slpeel_tree_duplicate_loop_to_edge_cfg, set_prologue_iterations,
        vect_loop_versioning): Set locations.
        * tree-parloops.c (create_phi_for_local_result,
        transform_to_exit_first_loop, create_parallel_loop): Add locations.
        * gimple-pretty-print.c (dump_gimple_phi): Dump lineno's if present.
        * tree-vect-loop.c (get_initial_def_for_induction,
        vect_create_epilog_for_reduction, vect_finalize_reduction): Add
        locations.
        * tree-flow-inline.h (gimple_phi_arg_location): New.  Return locus.
        (gimple_phi_arg_location_from_edge): New.  Return locus from an edge.
        (gimple_phi_arg_set_location): New.  Set locus.
        (gimple_phi_arg_has_location): New.  Check for locus.
        (redirect_edge_var_map_location): New.  Return locus from var_map.
        * tree-vect-data-refs.c (vect_setup_realignment): Set location.
        * tree-ssa-phiopt.c (conditional_replacement): Set locus when
        combining PHI arguments.
        (cond_store_replacement): Set location.
        * cfgexpand.c (gimple_assign_rhs_to_tree): Transfer locus if possible.
        * grpahite.c (add_loop_exit_phis, add_guard_exit_phis,
        scop_add_exit_phis_edge): Add locations.
        * tree-cfgcleanup.c (remove_forwarder_block,
        remove_forwarder_block_with_phi): Add locations.
        * tree-ssa-pre.c (insert_into_preds_of_block): Add locations.
        * tree-predcom.c (initialize_root_vars, initialize_root_vars_lm): Add
        locations.
        * tree-ssa-dce.c (forward_edge_to_pdom): Add locations.
        * tree-ssa.c (redirect_edge_var_map_add, ssa_redirect_edge,
        flush_pending_stmts): Add source location.
        * lambda-code.c (perfect_nestify): Maintain location stack with argument
        stack to preserve locations.
        * tree-vect-stmts.c (vectorizable_load): Add location.
        * tree-inline.c (copy_phis_for_bb): Copy locus.
        (setup_one_parameter): Add call locus to inlined parameter stmts.
        (initialize_inlined_parameters): Pass in call location as parameter
        assignment locus.
        (tree_function_versioning): Pass location to setup_one_parameter.
        * tree-ssa-phiprop.c (phiprop_insert_phi): Set locations.
        * tree-outof-ssa.c (struct _elim_graph): Add source_location vecs for
        copy and edge lists.
        (insert_partition_copy_on_edge, insert_value_copy_on_edge,
        insert_rtx_to_part_on_edge, insert_part_to_rtx_on_edge): Provide a 
        locus parameter and override the stmt default if provided.
        (new_elim_graph, clear_elim_graph, delete_elim_graph,
        elim_graph_add_edge, elim_graph_remove_succ_edge,
        FOR_EACH_ELIM_GRAPH_SUCC, FOR_EACH_ELIM_GRAPH_PRED, eliminate_build,
        elim_forward, elim_unvisited_predecessor, elim_backward, elim_create,
        eliminate_phi):  Add locus info in elimination graph for each edge and
        value copy.
        (insert_backedge_copies): Copy locus if present.
        * tree-flow.h (struct _edge_var_map): Add locus field.
        * tree-switch_conversions.c (fix_phi_nodes): Add locations.
        * tree-cfg.c (reinstall_phi_args, gimple_make_forwarder_block,
        add_phi_args_after_copy_edge, gimple_lv_adjust_loop_header_phi): Add 
        locations.
        * ipa-struct-reorg.c (make_edge_and_fix_phis_of_dest): Add locations.
        
2009-07-30  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40570
        * ipa-inline.c (cgraph_decide_inlining): Watch out for dead single
        use inlining loops.

2009-07-30  Razya Ladelsky <razya@il.ibm.com>

        * ssa-loop-manip.c: Include langhooks.h.
        (rewrite_phi_with_iv): New.
        (rewrite_all_phi_nodes_with_iv): New.
        (canonicalize_loop_ivs): Move here from tree-parloops.c.
        Remove reduction_list argument. Use rewrite_all_phi_nodes_with_iv.
        * tree-parloops.c (loop_parallel_p): Move out all conditions
        except dependency check.
        (canonicalize_loop_ivs): Move to tree-ssa-loop-manip.c.
        (gen_parallel_loop): Call canonicalize_loop_ivs without
        reduction_list argument.
        (build_new_reduction): New.
        (gather_scalar_reductions): New.
        (try_get_loop_niter): New.
        (try_create_reduction_list): New.
        (parallleize_loops): Change the parallel conditions check.
        * tree-flow.h (canonicalize_loop_ivs): Remove one argument.
        * Makefile.in (tree-ssa-loop-manip.o): Add langhooks.h dependency.

2009-07-30  Dave Korn  <dave.korn.cygwin@gmail.com>

        * opt-functions.awk (opt_args): Allow argument to be enclosed in
        curly braces.
        * doc/options.texi (Option properties):  Mention new quoting syntax.

2009-07-29  Douglas B Rupp  <rupp@gnat.com>

        * config/alpha/alpha.c (alpha_start_function):
        Handle VMS_DEBUG_MAIN_POINTER
        * config/alpha/vms.h (VMS_DEBUG_MAIN_POINTER): Define new macro.
        * doc/invoke.texi: Document -mdebug-main switch.

2009-07-29  Richard Henderson  <rth@redhat.com>

        * cgraph.c (cgraph_set_call_stmt_including_clones): Tidy.
        (cgraph_create_edge_including_clones): Likewise.
        * tree-inline.c (copy_bb): Operate on the correct edges
        when updating the callgraph.

2009-07-29  Douglas B Rupp  <rupp@gnat.com>

        * config/alpha/vms-cc.c: Deleted.
        * config/alpha/vms-ld.c: Deleted.
        * config/alpha/t-vms64: Moved to config/vms
        * config/alpha/vms-crt0-64.c: Moved to config/vms
        * config/alpha/vms-crt0.c: Moved to config/vms
        * config/alpha/vms-psxcrt0-64.c: Moved to config/vms
        * config/alpha/vms-psxcrt0.c: Moved to config/vms
        * config/alpha/xm-vms.h: Moved to config/vms
        * config/alpha/x-vms: Moved to config/vms
        * config/alpha/t-vms (vcrt0.o, pcrt0.o): Move rules to new file
        config/vms/t-vms.
        * config/vms/t-vms: Moved here from config/alpha. Alpha specific
        parts removed. (STMP_FIXPROTO, STMP_FIXINC, LIMITS_H_TEST): Set.
        (version): Set.
        * config/vms/t-vms64: Moved here from config/alpha
        * config/vms/vms-crt0-64.c: Moved here from config/alpha.
        (argc,argv,envp): Enforce 32bit malloc'ing.
        * config/vms/vms-psxcrt0-64.c: Likewise.
        * config/vms/vms-crt0.c: Moved here from config/alpha.
        * config/vms/vms-psxcrt0.c: Likewise.
        * config/vms/vms-crtl-64.h: New file.
        * config/vms/vms-crtl.h: New file.
        * config/vms/vms.opt: New file.
        * config/vms/xm-vms64.h: New file.
        * config/vms/xm-vms.h: Moved here from config/alpha.
        (STANARD_EXEC_PREFIX, STANDARD_STARTFILE_PREFIX, STANDARD_INCLUDE_DIR):
        Set.
        * config/vms/x-vms: Moved here from config/alpha.
        (version, VMS_EXTRA_PARTS): Moved to t-vms.
        (vms-ld.o, vms-cc.o): Removed.
        (LN, LN_S, USE_COLLECT2, POD2MAN): Set.

2009-07-29  Douglas B Rupp  <rupp@gnat.com>

        * dwarf2out.c (add_name_and_src_coords_attributes): Push on the
        correct stack (obvious VMS fix).

2009-07-29  Douglas B Rupp  <rupp@gnat.com>

        * dwarf2out.c (output_file_names): Output VMS style file name, size,
        date, version info if VMS_DEBUGGING_INFO defined.
        * vmsdgbout.c (vms_file_stats_name): New functon. VMS style file name,
        size, date calculating code moved here.

2009-07-29  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm (clear_cache): Use ARM_FUNC_START and
        do_push/do_pop.

2009-07-29  Uros Bizjak  <ubizjak@gmail.com>

        PR target/40577
        * config/alpha/alpha.c (alpha_expand_unaligned_store): Convert src
        to DImode when generating insq_le insn.

2009-07-28  Douglas B Rupp  <rupp@gnat.com>

        * dwarf2out.c (DWARF2_INDIRECT_STRING_SUPPORT_MISSING_ON_TARGET):
        New macro set for VMS_DEBUGGGING_INFO.
        (AT_string_form): Use it.

2009-07-28  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (vtext_section): New.
        (vftext_section): New.
        (ftext_section): New.
        (mep_select_section): Add support for functions.
        (mep_unique_section): Likewise.
        (mep_asm_init_sections): Likewise.
        (mep_encode_section_info): Remove it from here.

        * config/mep/mep.h (USE_SELECT_SECTION_FOR_FUNCTIONS): Define.

2009-07-28  Paolo Bonzini  <bonzinI@gnu.org>

        * tree.h (TREE_DEPRECATED): Document it is used for types too.
        (TYPE_VECTOR_OPAQUE): Use default_def_flag

2009-07-28  Douglas B Rupp  <rupp@gnat.com>

        * dwarf2out.c (output_file_names): Test new macro
        DWARF2_DIR_SHOULD_END_WITH_SEPARATOR.
        (add_comp_dir_attribute): Likewise.

2009-07-28  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/mingw-w64.h (LINK_SPEC): Add
        separating space between commands.

2009-07-28  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/40759
        * tree-ssa-dce.c (mark_virtual_phi_result_for_renaming): Mark all uses
        for renaming.

2009-07-27  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_expand_builtin_saveregs): Make sure 64-bit
        types are dword-aligned.
        (mep_expand_va_start): Likewise.

2009-07-27  Olivier Hainque  <hainque@adacore.com>
            Douglas B Rupp  <rupp@gnat.com>

        * convert.c (convert_to_pointer): Don't assume the target
        pointer type is POINTER_SIZE long. Fetch its precision instead.

2009-07-27  Douglas B Rupp  <rupp@gnat.com>

        * system.h (fopen): Undefine if macro.

2009-07-27  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (output_cfi_p): Removed.
        (output_cfis): New function.
        (output_fde): New function, split from output_call_frame_info.
        (output_call_frame_info): Use it.
        (dwarf2out_switch_text_section): Use output_cfis.

2009-07-24  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (DWARF2_UNWIND_INFO): Error build when
        TARGET_BI_ARCH is specified without enabling SJLJ.
        * config/i386/mingw32.h (MD_UNWIND_SUPPORT): Define MD_UNWIND_SUPPORT,
        if TARGET_64BIT and TARGET_BI_ARCH aren't defined.

2009-07-26  Mikael Pettersson <mikpe@it.uu.se>

        * arm.md (negdi2): Use DImode if forcing a value into a register.

2009-07-26  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/40801
        * tree-vect-stmts.c (vectorizable_call): Get previous copy
        of vector operand from the previous copy of vector statement.
        Pass the correct definition type value to
        vect_get_vec_def_for_stmt_copy().

2009-07-25  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * collect2.c (scan_libraries): Use CONST_CAST2 to perform char ** to
        const char ** conversion.

2009-07-25 David Daney <ddaney@caviumnetworks.com>

        * system.h (gcc_assert): Invoke __builtin_unreachable() instead of
        fancy_abort() if !ENABLE_ASSERT_CHECKING.
        (gcc_unreachable): Invoke __builtin_unreachable() if
        !ENABLE_ASSERT_CHECKING.

2009-07-25  David Daney  <ddaney@caviumnetworks.com>

        PR rtl-optimization/40445
        * emit-rtl.c (next_nonnote_insn_bb): New function.
        * rtl.h (next_nonnote_insn_bb): Declare new function.
        * cfgcleanup.c (try_optimize_cfg): Don't remove an empty block
        with no successors that is the successor of the ENTRY_BLOCK.
        Continue from the top after removing an empty fallthrough block.
        * cfgrtl.c (get_last_bb_insn): Call next_nonnote_insn_bb instead
        of next_nonnote_insn.

2009-07-25  David Daney  <ddaney@caviumnetworks.com>

        * cfgcleanup.c (old_insns_match_p): Handle the case of empty blocks.
        
2009-07-25  Martin Jambor  <mjambor@suse.cz>

        * c-common.c (c_common_attribute_table): New element for noclone.
        (handle_noclone_attribute): New function. Forward-declare.
        * tree-inline.c (tree_versionable_function_p): Check for noclone
        attribute.
        * doc/extend.texi (Labels as Values): Document need for noclone.
        (Function Attributes): Document noclone attribute.

2009-07-25  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/34999
        * dwarf2out.c (struct dw_fde_struct): Add dw_fde_switch_cfi
        and dw_fde_switched_cold_to_hot fields.
        (output_cfi_p): New function.
        (output_call_frame_info): If fde->dw_fde_switched_sections,
        output 2 FDEs instead of one with corrupted header.
        (dwarf2out_do_cfi_startproc): New function.
        (dwarf2out_begin_prologue): Use it.  Initialize fde->dw_fde_switch_cfi
        and fde->dw_fde_switched_cold_to_hot.
        (dwarf2out_switch_text_section): Compute
        fde->dw_fde_switched_cold_to_hot.  Switch to new text section here.
        If dwarf2out_do_cfi_asm, emit .cfi_endproc before it and call
        dwarf2out_do_cfi_startproc plus emit again currently active CFI insns.
        Otherwise, compute fde->dw_fde_switch_cfi.

2009-07-24  Cary Coutant  <ccoutant@google.com>

        * tree-cfg.c (assign_discriminator): Add explicit parentheses.

2009-07-24  Cary Coutant  <ccoutant@google.com>

        * cfghooks.c (split_block): Copy discriminator to new block.
        * tree-cfg.c (assign_discriminator): Check location of last
        instruction in block as well as first.

2009-07-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/linux.c: Use fputs or putc instead of fprintf
        where appropriate.
        * config/i386/gas.h: Ditto.
        * config/i386/x86-64.h: Ditto.
        * config/i386/att.h: Ditto.

2009-07-24  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * expmed.c (emit_store_flag): Use a recursive call to optimize the
        xor case.

2009-07-24  Martin Jambor  <mjambor@suse.cz>

        * ipa-prop.h (struct ipa_node_params): New flag node_enqued.
        (ipa_push_func_to_list_1): Declare.
        (ipa_push_func_to_list): New function.

        * ipa-prop.c (ipa_push_func_to_list_1): New function.
        (ipa_init_func_list): Call ipa_push_func_to_list_1.
        (ipa_push_func_to_list): Removed.
        (ipa_pop_func_from_list): Clear node_enqueued flag.

2009-07-24  Andreas Krebbel  <krebbel1@de.ibm.com>
        
        * config/s390/s390.c (override_options): Default
        max-unrolled-insns to 100 for z10 tuning.

2009-07-24  Tobias Grosser  <grosser@fim.uni-passau.de>

        * Makefile.in (TREE_DATA_REF_H, tree-vrp.o, tree-cfg.o, tree-if-conv.o
        tree-ssa-loop.o, tree-ssa-loop-niter.o, tree-ssa-loop-ivcanon.o,
        tree-ssa-loop-prefetch.o, tree-predcom.o, tree-affine.o,
        tree-scalar-evolution.o, tree-data-ref.o, tree-vect-loop.o,
        tree-vect-data-refs.o, tree-loop-linear.o, tree-loop-distribution.o
        tree-parloops.o, tree-pretty-printer.o, fold-const.o, tree-ssa-dce.o,
        lambda-code.o, params.o): Cleanup use of SCEV_H and TREE_DATA_REF_H.

2009-07-24  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/mingw-w64.h (STANDARD_INCLUDE_DIR): Remove and
        use default set in mingw32.h header.
        * config/i386/mingw32.h (STANDARD_INCLUDE_DIR): Use for 32-bit and
        64-bit /mingw/include path.
        (STANDARD_STARTFILE_PREFIX_1): Use for 32-bit and 64-bit /mingw/lib
        path.

2009-07-23  Neil Vachharajani  <nvachhar@google.com>

        PR rtl-optimization/40209
        * loop-iv.c (iv_analysis_loop_init): Call df_note_add_problem.

2009-07-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c: Use ASM_LONG instead of .long.  Concatenate
        ASM_LONG, LPREFIX, MCOUNT_NAME and PROFILE_COUNT_REGISTER strings
        with the rest of string where appropriate.  Use fputs or putc
        instead of fprintf where appropriate.

2009-07-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Pat Haugen  <pthaugen@us.ibm.com>
            Revital Eres <ERES@il.ibm.com>

        * config/rs6000/vector.md: New file.  Move most of the vector
        expander support here from altivec.md to allow for the VSX vector
        unit in the future.  Add support for secondary_reload patterns.
        Rewrite the patterns for vector comparison, and vector comparison
        predicate instructions so that the RTL expresses the desired
        behavior, instead of using unspec.

        * config/rs6000/constraints.md ("f" constraint): Use
        rs6000_constraints to hold the precalculated register class.
        ("d" constraint): Ditto.
        ("wd" constraint): New constraint for VSX.
        ("wf" constraint): Ditto.
        ("ws" constraint): Ditto.
        ("wa" constraint): Ditto.
        ("wZ" constraint): Ditto.
        ("j" constraint): Ditto.

        * config/rs6000/predicates.md (vsx_register_operand): New
        predicate for VSX.
        (vfloat_operand): New predicate for vector.md.
        (vint_operand): Ditto.
        (vlogical_operand): Ditto.
        (easy_fp_constant): If VSX, 0.0 is an easy constant.
        (easy_vector_constant): Add VSX support.
        (altivec_indexed_or_indirect_operand): New predicate for
        recognizing Altivec style memory references with AND -16.

        * config/rs6000/rs6000.c (rs6000_vector_reload): New static global
        for vector secondary reload support.
        (rs6000_vector_reg_class): Delete, replacing it with
        rs6000_constraints.
        (rs6000_vsx_reg_class): Ditto.
        (rs6000_constraints): New array to hold the register classes of
        each of the register constraints that can vary at runtime.
        (builtin_mode_to_type): New static array for builtin function type
        creation.
        (builtin_hash_table): New static hash table for builtin function
        type creation.
        (TARGET_SECONDARY_RELOAD): Define target hook.
        (TARGET_IRA_COVER_CLASSES): Ditto.
        (rs6000_hard_regno_nregs_internal): If -mvsx, floating point
        registers are 128 bits if VSX memory reference instructions are used.
        (rs6000_hard_regno_mode_ok): For VSX, only check if the VSX memory
        unit is being used.
        (rs6000_debug_vector_unit): Move into rs6000_debug_reg_global.
        (rs6000_debug_reg_global): Move -mdebug=reg statements here.
        Print several of the scheduling related parameters.
        (rs6000_init_hard_regno_mode_ok): Switch to putting constraints in
        rs6000_constraints instead of rs6000_vector_reg_class.  Move
        -mdebug=reg code to rs6000_debug_reg_global.  Add support for
        -mvsx-align-128 debug switch.  Drop testing float_p if VSX or
        Altivec.  Add VSX support.  Setup for secondary reload support on
        Altivec/VSX registers.
        (rs6000_override_options): Make power7 set the scheduling groups
        like the power5.  Add support for new debug switches to override
        the scheduling defaults.  Temporarily disable -mcpu=power7 from
        setting -mvsx.  Add support for debug switches -malways-hint,
        -msched-groups, and -malign-branch-targets.
        (rs6000_buitlin_conversion): Add support for returning unsigned
        vector conversion functions to fix regressions due to stricter
        type checking.
        (rs6000_builtin_mul_widen_even): Ditto.
        (rs6000_builtin_mul_widen_odd): Ditto.
        (rs6000_builtin_vec_perm): Ditto.
        (rs6000_vec_const_move): On VSX, use xxlxor to clear register.
        (rs6000_expand_vector_init): Initial VSX support for using xxlxor
        to zero a register.
        (rs6000_emit_move): Fixup invalid const symbol_ref+reg that is
        generated upstream.
        (bdesc_3arg): Add builtins for unsigned types.  Add builtins for
        VSX types for bit operations.  Changes to accomidate vector.md.
        (bdesc_2arg): Ditto.
        (bdesc_1arg): Ditto.
        (struct builtin_description_predicates): Rewrite predicate
        handling so that RTL describes the operation, instead of passing
        the instruction to be used as a string argument.
        (bdesc_altivec_preds): Ditto.
        (altivec_expand_predicate_builtin): Ditto.
        (altivec_expand_builtin): Ditto.
        (rs6000_expand_ternop_builtin): Use a switch instead of an if
        statement for vsldoi support.
        (altivec_expand_ld_builtin): Change to use new names from vector.md.
        (altivec_expand_st_builtin): Ditto.
        (paired_expand_builtin): Whitespace changes.
        (rs6000_init_builtins): Add V2DF/V2DI types.  Initialize the
        builtin_mode_to_type table for secondary reload.  Call
        builtin_function_type to build random builtin functions.
        (altivec_init_builtins): Change to use builtin_function_type to
        create builtin function types dynamically as we need them.
        (builtin_hash_function): New support for hashing the tree types
        for builtin function as we need it, rather than trying to build
        all of the trees that we need.  Add initial preliminary VSX support.
        (builtin_function_type): Ditto.
        (builtin_function_eq): Ditto.
        (builtin_hash_struct): Ditto.
        (rs6000_init_builtins): Ditto.
        (rs6000_common_init_builtins): Ditto.
        (altivec_init_builtins): Ditto.
        (rs6000_common_init_builtins): Ditto.
        (enum reload_reg_type): New enum for simplifing reg classes.
        (rs6000_reload_register_type): Simplify register classes into GPR,
        Vector, and other registers.  Altivec and VSX addresses in reload.
        (rs6000_secondary_reload_inner): Ditto.
        (rs6000_ira_cover_classes): New target hook, that returns the
        appropriate cover classes, based on -mvsx being used or not.
        (rs6000_secondary_reload_class): Add VSX support.
        (get_vec_cmp_insn): Delete, rewrite vector conditionals.
        (get_vsel_insn): Ditto.
        (rs6000_emit_vector_compare): Rewrite vector conditional support
        so that where we can, we use RTL operators, instead of blindly use
        UNSPEC.
        (rs6000_emit_vector_select): Ditto.
        (rs6000_emit_vector_cond_expr): Ditto.
        (rs6000_emit_minmax): Directly generate min/max under altivec, vsx.
        (create_TOC_reference): Add -mdebug=addr support.
        (emit_frame_save): VSX loads/stores need register indexed addressing.

        * config/rs6000/rs6000.md: Include vector.md.

        * config/rs6000/t-rs6000 (MD_INCLUDES): Add vector.md.

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        support for V2DI, V2DF in logical, permute, select operations.

        * config/rs6000/rs6000.opt (-mvsx-scalar-double): Add new debug
        switch for vsx/power7.
        (-mvsx-scalar-memory): Ditto.
        (-mvsx-align-128): Ditto.
        (-mallow-movmisalign): Ditto.
        (-mallow-df-permute): Ditto.
        (-msched-groups): Ditto.
        (-malways-hint): Ditto.
        (-malign-branch-targets): Ditto.
        
        * config/rs6000/rs6000.h (IRA_COVER_CLASSES): Delete, use target
        hook instead.
        (IRA_COVER_CLASSES_PRE_VSX): Cover classes if not -mvsx.
        (IRA_COVER_CLASSES_VSX): Cover classes if -mvsx.
        (rs6000_vector_reg_class): Delete.
        (rs6000_vsx_reg_class): Ditto.
        (enum rs6000_reg_class_enum): New enum for the constraints that
        vary based on target switches.
        (rs6000_constraints): New array to hold the register class for all
        of the register constraints that vary based on the switches used.
        (ALTIVEC_BUILTIN_*_UNS): Add unsigned builtin functions.
        (enum rs6000_builtins): Add unsigned varients for the builtin
        declarations returned by target hooks for expanding multiplies,
        select, and permute operations.  Add VSX builtins.
        (enum rs6000_builtin_type_index): Add entries for VSX.
        (V2DI_type_node): Ditto.
        (V2DF_type_node): Ditto.
        (unsigned_V2DI_type_node): Ditto.
        (bool_long_type_node): Ditto.
        (intDI_type_internal_node): Ditto.
        (uintDI_type_internal_node): Ditto.
        (double_type_internal_node): Ditto.

        * config/rs6000/altivec.md (whole file): Move all expanders to
        vector.md from altivec.md.  Rename insn matching functions to be
        altivec_foo.
        (UNSPEC_VCMP*): Delete, rewrite vector comparisons.
        (altivec_vcmp*): Ditto.
        (UNSPEC_VPERM_UNS): New, add for unsigned types using vperm.
        (VM): New iterator for moves that includes the VSX types.
        (altivec_vperm_<mode>): Add VSX types.  Add unsigned types.
        (altivec_vperm_<mode>_uns): New, for unsigned types.
        (altivec_vsel_*): Rewrite vector comparisons and predicate builtins.
        (altivec_eq<mode>): Ditto.
        (altivec_gt<mode>): Ditto.
        (altivec_gtu<mode>): Ditto.
        (altivec_eqv4sf): Ditto.
        (altivec_gev4sf): Ditto.
        (altivec_gtv4sf): Ditto.
        (altivec_vcmpbfp_p): Ditto.

2009-07-23  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (split for ior/xor with shift and zero-extend): Cast op3 to 
        unsigned HWI.

2009-07-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/40832
        * config/i386/i386.c (output_387_ffreep): Rewrite to use
        ASM_SHORT instead of .word.
        * config/i386/i386.md (*tls_global_dynamic_64): Use ASM_SHORT
        instead of .word in asm template.

2009-07-22  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/37488
        * ira-lives.c (bb_has_abnormal_call_pred): New function.
        (process_bb_node_lives): Use it.

        * ira.c (setup_cover_and_important_classes): Don't setup
        ira_important_class_nums.  Add cover classes to the end of
        important classes.
        (cover_class_order, comp_reg_classes_func, reorder_important_classes):
        New.
        (find_reg_class_closure): Use reorder_important_classes.

        * config/i386/i386.h (IRA_COVER_CLASSES): Remove.

        * config/i386/i386.c (i386_ira_cover_classes): New function.
        (TARGET_IRA_COVER_CLASSES): Redefine.

        * doc/tm.texi (TARGET_IRA_COVER_CLASSES): Add a comment about
        importance of order of cover classes in the array.
        
2009-07-22  Diego Novillo  <dnovillo@google.com>

        * tree-pass.h (TDF_EH): Define.
        * gimple-pretty-print.c (dump_gimple_stmt): If FLAGS
        contains TDF_EH, print the EH region number holding GS.
        * tree-dump.c (dump_options): Add "eh".
        * doc/invoke.texi: Document it.

2009-07-22  Doug Kwan  <dougkwan@google.com>

        * config/arm/arm.md (subdi3) Copy non-reg values to DImode registers.

2009-07-22  Michael Matz  <matz@suse.de>

        PR tree-optimization/35229
        PR tree-optimization/39300

        * tree-ssa-pre.c (includes): Include tree-scalar-evolution.h.
        (inhibit_phi_insertion): New function.
        (insert_into_preds_of_block): Call it for REFERENCEs.
        (init_pre): Initialize and finalize scalar evolutions.
        * Makefile.in (tree-ssa-pre.o): Depend on tree-scalar-evolution.h .

2009-07-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (zero_extended_scalar_load_operand):
        Use CONST_VECTOR_NUNITS to determine number of elements.

2009-07-22  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/constraints.md (ZQ, ZR, ZS, ZT): New constraints.
        (U, W): Constraints are now deprecated and will be removed if we
        run out of letters.     
        * config/s390/s390.md (U, W): Replaced with ZQZR, ZSZT throughout
        the file.
        ("prefetch"): Add the stcmh instruction for prefetching.
        * config/s390/s390.c (s390_symref_operand_p): Function moved. No
        changes.
        (s390_short_displacement): Return always true if compiling for
        machines not providing the long displacement facility.
        (s390_mem_constraint): Support the new constraint letter Z.
        (s390_check_qrst_address): New function.

2009-07-21  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_legitimize_arg): Leave control registers
        alone too.

2009-07-21  Jason Merrill  <jason@redhat.com>

        * c-common.c (max_tinst_depth): Increase default to 1024.

2009-07-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (vec_unpacku_float_hi_v4si): New expander.
        (vec_unpacku_float_lo_v4si): Ditto.

2009-07-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/40811
        * config/i386/sse.md (sse2_cvtudq2ps): New expander.
        (enum ix86_builtins): Add IX86_BUILTIN_CVTUDQ2PS.
        (builtin_description): Add __builtin_ia32_cvtudq2ps.
        (ix86_vectorize_builtin_conversion): Handle IX86_BUILTIN_CVTUDQ2PS.

2009-07-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/40813
        * tree-inline.c (copy_bb): Regimplify RHS after last stmt, not before
        it.

2009-07-21  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_gimplify_va_arg_expr): Wrap the result
        with a NOP_EXPR if needed.

2009-07-21  Paul Brook <paul@codesourcery.com>

        * tree-vectorizer.c (increase_alignment): Handle nested arrays.
        Terminate debug dump with newline.

2009-07-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (compute_zdepwi_operands): Limit deposit length to 32 - lsb.
        Cast "1" to unsigned HOST_WIDE_INT.
        (compute_zdepdi_operands): Limit maximum length to 64 bits.  Limit
        deposit length to the maximum length - lsb.  Extend length if
        HOST_BITS_PER_WIDE_INT is 32.

2009-07-20  Olatunji Ruwase <tjruwase@google.com>

        * cgraph.h (constant_pool_htab): New function.
        (constant_descriptor_tree): Move from varasm.c.
        * varasm.c (constant_pool_htab): New function.
        (constant_descriptor_tree): Move to cgraph.h.

2009-07-20  Olatunji Ruwase  <tjruwase@google.com>

        * toplev.c: Invoke FINISH_UNIT callbacks before call to finalize().

2009-07-20  Shujing Zhao  <pearly.zhao@oracle.com>

        * Makefile.in (TREE_INLINE_H, tree-inline.o, cgraph.o): Remove
        $(VARRAY_H).

2009-07-20  Xinliang David Li  <davidxl@google.com>

        * dbgcnt.c (dbg_cnt_set_limit_by_name): Add length check.

2009-07-20  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (move_type): Add arith.
        (type): Handle arith.
        (zero_extendsidi2): Rename this into ...
        (*zero_extendsidi2): ... this.  Don't match if ISA_HAS_EXT_INS.
        (zero_extendsidi2): New expander.
        (*zero_extendsidi2_dext): New pattern.

2009-07-20  Nick Clifton  <nickc@redhat.com>

        * config.gcc (mips64-*-*): Add definition of tm_defines in order
        to set MIPS_ABI_DEFAULT.
        * config/mips/vr.h (MIPS_ABI_DEFAULT): Remove definition.

2009-07-20  Jakub Jelinek  <jakub@redhat.com>

        * tree-object-size.c (addr_object_size): Handle unions with
        array in it as last field of structs in __bos (, 1) as __bos (, 0).

        PR tree-optimization/40792
        * tree.c (build_function_type_skip_args): Remove bogus assert.

2009-07-20  Jan Hubicka  <jh@suse.cz>
            Martin Jambor  <mjambor@suse.cz>

        * cgraph.h (combined_args_to_skip): New field.
        * cgraph.c (cgraph_create_virtual_clone): Properly handle
        combined_args_to_skip and args_to_skip.
        * tree-inline.c (update_clone_info): New function.
        (tree_function_versioning): Call update_clone_info.
        * cgraphunit.c: (cgraph_materialize_clone): Dump materialized
        functions.
        (cgraph_materialize_all_clones): More extensive dumping, working
        with combined_args_to_skip rather than args_to_skip.

2009-07-20  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.h (vectorizable_condition): Add parameters.
        * tree-vect-loop.c (vect_is_simple_reduction): Support COND_EXPR.
        (get_initial_def_for_reduction): Likewise.
        (vectorizable_reduction): Skip the check of first operand in case
        of COND_EXPR. Add check that it is outer loop vectorization if
        nested cycle was detected. Call vectorizable_condition() for 
        COND_EXPR. If reduction epilogue cannot be created do not fail for
        nested cycles (if it is not double reduction). Assert that there
        is only one type in the loop in case of COND_EXPR. Call
        vectorizable_condition() to vectorize COND_EXPR.
        * tree-vect-stmts.c (vectorizable_condition): Update comment.
        Add parameters. Allow nested cycles if called from 
        vectorizable_reduction(). Use reduction vector variable if provided.
        (vect_analyze_stmt): Call vectorizable_reduction() before
        vectorizable_condition().
        (vect_transform_stmt): Update call to vectorizable_condition().

2009-07-20  Christian Bruel  <christian.bruel@st.com>
        
        * config/sh/sh.opt (-mfmovd): Resurrect and document.
        * doc/invoke.texi (-mfmovd): Likewise.
        * config/sh/sh.h (TARGET_FMOVD, MASK_FMOVD): Remove default setting.
        
2009-07-20  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (remove_dead_phis): Only look for abnormal PHIs
        when handling SSA name.

2009-07-19  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/40676
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do renaming on all
        virtual PHIs in empty BBs.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (make_compound_operation) <SUBREG>: If force_to_mode
        re-expanded the compound use gen_lowpart instead to convert to the
        desired mode.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (try_widen_shift_mode): Add COUNT, OUTER_CODE and
        OUTER_CONST arguments.
        <LSHIFTRT>: Use them to allow widening if the bits shifted in from
        the new wider mode will be masked off.
        (simplify_shift_const_1): Adjust calls to try_widen_shift_mode.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (try_widen_shift_mode) <LSHIFTRT>: Allow widening if the
        high-order bits are zero.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_shift_const_1): Split code to determine
        shift_mode into ...
        (try_widen_shift_mode): ... here.  Allow widening for ASHIFTRT if the
        new bits shifted in are identical to the old sign bit.

2009-07-18  Richard Guenther  <rguenther@suse.de>

        PR c/40787
        * gimplify.c (gimplify_call_expr): Reject code using results from
        functions returning void.

2009-07-18  Richard Sandiford  <r.sandiford@uk.ibm.com>

        * doc/md.texi: Document the new PowerPC "es" constraint.
        Document that "m" can include automodified addresses on this target,
        and explain how %U must be used.  Extend the "Q" and "Z" documentation
        to suggest "es" as well as "m".
        * config/rs6000/constraints.md (es): New memory constraint.
        (Q, Z): Update strings to match new documentation.

2009-07-18  Richard Sandiford  <r.sandiford@uk.ibm.com>

        * config/rs6000/rs6000.c (rs6000_mode_dependent_address): Allow any
        offset from virtual_stack_vars_rtx and arg_pointer_rtx.
        * config/rs6000/predicates.md (volatile_mem_operand): Use
        offsettable_nonstrict_memref_p.
        * config/rs6000/rs6000.md (*floatsidf2_internal): Remove split check.
        (*floatunssidf2_internal): Likewise.
        (*fix_truncdfsi2_internal): Likewise.
        (*fix_trunctfsi2_internal): Likewise.

2009-07-17  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr-devices.c (avr_mcu_t): Add atmega8u2, atmega16u2 and
        atmega32u2 devices.
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2009-07-17  Richard Guenther  <rguenther@suse.de>

        PR c/40401
        * tree-pass.h (pass_diagnose_omp_blocks): Declare.
        (pass_warn_unused_result): Likewise.
        (TODO_set_props): Remove.
        * omp-low.c (diagnose_omp_structured_block_errors): Change to
        run as a pass.
        (pass_diagnose_omp_blocks): Define.
        * c-decl.c (pop_file_scope): Do not finalize the CU here.
        (c_gimple_diagnostics_recursively): Remove.
        (finish_function): Do not call it.
        (c_write_global_declarations): Continue after errors.
        Finalize the CU here.
        * c-gimplify.c (c_genericize): Do not gimplify here.
        * c-common.c (c_warn_unused_result): Move ...
        * tree-cfg.c (do_warn_unused_result): ... here.
        (run_warn_unused_result): New function.
        (gate_warn_unused_result): New function.
        (pass_warn_unused_result): New pass.
        * c-common.h (c_warn_unused_result): Remove.
        * flags.h (flag_warn_unused_result): Declare.
        * c-opts.c (c_common_init_options): Enable flag_warn_unused_result.
        * opts.c (flag_warn_unused_result): Initialize to false.
        * toplev.c (compile_file): Add comment.
        * omp-low.c (create_omp_child_function): Do not register
        the function with the frontend.
        (diagnose_omp_structured_block_errors): Prepare to be
        called as optimization pass.
        (gate_diagnose_omp_blocks): New function.
        (pass_diagnose_omp_blocks): New pass.
        * cgraph.h (cgraph_optimize): Remove.
        (cgraph_analyze_function): Likewise.
        * cgraph.c (cgraph_add_new_function): Gimplify C++ thunks.
        * cgraphunit.c (cgraph_lower_function): Lower nested functions
        before their parents here.
        (cgraph_finalize_function): Not here.
        (cgraph_analyze_function): Gimplify functions here.
        (cgraph_finalize_compilation_unit): Continue after errors.
        Optimize the callgraph from here.
        (cgraph_optimize): Make static.
        * langhooks.c (write_global_declarations): Finalize the CU.
        * gimplify.c (gimplify_asm_expr): Do not emit ASMs with errors.
        (gimplify_function_tree): Assert we gimplify only once.
        Set PROP_gimple_any property.
        * tree-nested.c (gimplify_all_functions): New function.
        (lower_nested_functions): Gimplify all nested functions.
        * gimple.h (diagnose_omp_structured_block_errors): Remove.
        * passes.c (init_optimization_passes): Add pass_warn_unused_result
        and pass_diagnose_omp_blocks after gimplification.  Do not
        set TODO_set_props on all_lowering_passes.
        (execute_one_pass): Do not handle TODO_set_props.
        * Makefile.in (cgraphunit.o): Add $(TREE_DUMP_H) dependency.
        (gimplify.o): Add tree-pass.h dependency.
        * tree-inline.c (copy_statement_list): Properly copy STATEMENT_LIST.
        (copy_tree_body_r): Properly handle TARGET_EXPR like SAVE_EXPR.
        (unsave_r): Likewise.
        * c-omp.c (c_finish_omp_atomic): Set DECL_CONTEXT on the
        temporary variable.

2009-07-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/service.texi (Service): Restore previously removed link,
        which isn't broken after all.

2009-07-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40321
        * tree-ssa-pre.c (add_to_exp_gen): Also add names defined by
        PHI nodes to the maximal set.
        (make_values_for_phi): Add PHI arguments to the maximal set.
        (execute_pre): Dump PHI_GEN and the maximal set.

2009-07-17  Jakub Jelinek  <jakub@redhat.com>

        PR c++/40780
        * gimplify.c (gimplify_conversion): Don't change non-conversions into
        VIEW_CONVERT_EXPR.

2009-07-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (Nested Functions): Replace broken link with
        textual reference.
        * doc/service.texi (Service): Remove broken link.

2009-07-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/40781
        * builtins.c (expand_builtin_memcmp): Use loc instead of
        EXPR_LOCATION (exp).
        (expand_builtin_strncmp): Likewise.

2009-07-17  Aldy Hernandez  <aldyh@redhat.com>
            Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 40435 
        * tree-complex.c, tree-loop-distribution.c, tree.c, tree.h,
        builtins.c, fold-const.c, omp-low.c, cgraphunit.c, tree-ssa-ccp.c,
        tree-ssa-dom.c, gimple-low.c, expr.c, tree-ssa-ifcombine.c,
        c-decl.c, stor-layout.c, tree-if-conv.c, c-typeck.c, gimplify.c,
        calls.c, tree-sra.c, tree-mudflap.c, tree-ssa-copy.c,
        tree-ssa-forwprop.c, c-convert.c, c-omp.c, varasm.c,
        tree-inline.c, c-common.c, c-common.h, gimple.c,
        tree-switch-conversion.c, gimple.h, tree-cfg.c, c-parser.c,
        convert.c: Add location argument to fold_{unary,binary,ternary},
        fold_build[123], build_call_expr, build_size_arg,
        build_fold_addr_expr, build_call_array, non_lvalue, size_diffop,
        fold_build1_initializer, fold_build2_initializer,
        fold_build3_initializer, fold_build_call_array,
        fold_build_call_array_initializer, fold_single_bit_test,
        omit_one_operand, omit_two_operands, invert_truthvalue,
        fold_truth_not_expr, build_fold_indirect_ref, fold_indirect_ref,
        combine_comparisons, fold_builtin_*, fold_call_expr,
        build_range_check, maybe_fold_offset_to_address, round_up,
        round_down.

2009-07-16  Jason Merrill  <jason@redhat.com>

        PR libstdc++/37907
        * c-common.c (c_common_reswords): Add __is_standard_layout
        and __is_trivial.
        * c-common.h (enum rid): Add RID_IS_STD_LAYOUT and RID_IS_TRIVIAL.
        * doc/implement-cxx.texi: New.
        * doc/gcc.texi: Include it.

2009-07-16  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_compare_redundant): Avoid removing
        compares that may be indirectly affected by previous instructions.

2009-07-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (do_mpc_arg2): New.
        (fold_builtin_2): Fold builtin cpow.
        * real.h (HAVE_mpc_pow): New.

2009-07-16  Bingfeng Mei  <bmei@broadcom.com>

        * modulo-sched.c (sms_schedule): stage_count <= 1 as correct
        comparison to skip unprofitable schedule

2009-07-16  Simon Baldwin  <simonb@google.com>

        * gcc.c (option_map): New flag -no-canonical-prefixes.
        * (display_help): Print help text for new flag.
        * (process_command): Move options translation and language specifics
        and handle new flag early.  Use it to set a function pointer to a
        prefix builder.  Replace make_relative_prefix calls with calls to
        the function pointed to.  Ignore new flag in regular options handling.
        * doc/invoke.texi (Overall Options): Documented -no-canonical-prefixes.

2009-07-15  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.md (sibcall_internal): Change register to avoid
        argument registers.
        (sibcall_value_internal): Likewise.

2009-07-15  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/40710
        * resource.c (mark_target_live_regs): Reset DF problem to LR.

2009-07-15  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (*extenddi_truncate<mode>,
        *extendsi_truncate<mode>): Change type attribute to move_type
        with shift_shift.  Split out code handling exts from here ...
        (*extend<GPR:mode>_truncate<SHORT:mode>_exts): ... to this new
        pattern.
        (*extendhi_truncateqi): Change type attribute to move_type with
        shift_shift.  Split out code handling exts from here ...
        (*extendhi_truncateqi_exts): ... to this new pattern.

2009-07-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (copysign<mode>3): Use "and-not" SSE instruction
        instead of "and" with inverted sign bit mask value.  Use
        "nonimmediate_operand" for operand 1 and operand 2 predicate.
        Allocate registers only for operand 4 and operand 5.

2009-07-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40747
        * fold-const.c (fold_cond_expr_with_comparison): When folding
        < and <= to MIN, make sure the MIN uses the same type as the
        comparison's operands.

2009-07-15  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (ior_xor): New code iterator.
        (split for ior/xor with shift and zero-extend): New split pattern.
        * arm/predicates.md (subreg_lowpart_operator): New special predicate.

2009-07-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (make_constraint_from_heapvar): Initialize
        offset member.

2009-07-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/40753
        * alias.c (ao_ref_from_mem): Reject FUNCTION_DECL and LABEL_DECL bases.

2009-07-15  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/linux-unwind.h (m68k_fallback_frame_state): Update to
        handle 2.6.30 kernel.

2009-07-15  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.md (sibcall_internal): Change register to allow
        for 24-bit addresses.
        (sibcall_value_internal): Likewise.

2009-07-14  Ghassan Shobaki  <ghassan.shobaki@amd.com>
        
        * doc/invoke.texi: Added descriptions of the  scheduling heuristics
        that are enabled/disabled by the flags introduced by a previous patch.
        
2009-07-14  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.md (sibcall_internal): Include non-toggling
        non-jmp case.
        (sibcall_value_internal): Likewise.

2009-07-14  Taras Glek  <tglek@mozilla.com>
            Rafael Espindola  <espindola@google.com>

        * doc/sourcebuild.texi: Document install-plugin target.
        * configure.ac: Added install-plugin target to language makefiles.
        * configure: Regenerate.
        * Makefile.in: (install-plugin): Install more headers,
        depend on lang.install-plugin.

2009-07-15  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree-vrp.c (vrp_evaluate_conditional): Mark strings for
        translation.
        
2009-07-14  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_vliw_jmp_match): New function.
        * config/mep/mep-protos.h (mep_vliw_jmp_match): Prototype it.
        * config/mep/mep.md (sibcall_internal): Change test from
        mep_vliw_mode_match to mep_vliw_jmp_match.
        (sibcall_value_internal): Likewise.

2009-07-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (copysign<mode>3): New expander.
        * config/i386/i386-protos.h (ix86_build_signbit_mask): New prototype.
        * config/i386/i386.c (ix86_build_signbit_mask): Make public.
        Use ix86_build_const_vector.
        (enum ix86_builtins): Add IX86_BUILTIN_CPYSGNPS and
        IX86_BUILTIN_CPYSGNPD.
        (builtin_description): Add __builtin_ia32_copysignps and
        __builtin_ia32_copysignpd.
        (ix86_builtin_vectorized_function): Handle BUILT_IN_COPYSIGN
        and BUILT_IN_COPYSIGNF.

2009-07-13  Jason Merrill  <jason@redhat.com>

        * builtins.c (can_trust_pointer_alignment): New fn.
        (get_pointer_alignment): Factor it out from here.
        * tree.h: Declare it.

2009-07-14  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/predicates.md (offsettable_mem_operand): Test
        RTX_AUTOINC class.

2009-07-14  Dodji Seketeli  <dodji@redhat.com>

        PR debug/40705
        PR c++/403057
        * dwarf2.out.c (gen_type_die_with_usage): Added comment.

2009-07-14  Richard Guenther  <rguenther@suse.de>
            Andrey Belevantsev <abel@ispras.ru>

        PR middle-end/40745
        * cfgexpand.c (partition_stack_vars): Do not bother to update
        alias information when not optimizing.

2009-07-14  Richard Guenther  <rguenther@suse.de>
            Andrey Belevantsev <abel@ispras.ru>

        * tree-ssa-alias.h (refs_may_alias_p_1): Declare.
        (pt_solution_set): Likewise.
        * tree-ssa-alias.c (refs_may_alias_p_1): Export.
        * tree-ssa-structalias.c (pt_solution_set): New function.
        * final.c (rest_of_clean_state): Free SSA data structures.
        * print-rtl.c (print_decl_name): Remove.
        (print_mem_expr): Implement in terms of print_generic_expr.
        * alias.c (ao_ref_from_mem): New function.
        (rtx_refs_may_alias_p): Likewise.
        (true_dependence): Query alias-export info.
        (canon_true_dependence): Likewise.
        (write_dependence_p): Likewise.
        * tree-dfa.c (get_ref_base_and_extent): For void types leave
        size unknown.
        * emit-rtl.c (component_ref_for_mem_expr): Remove.
        (mem_expr_equal_p): Use operand_equal_p.
        (set_mem_attributes_minus_bitpos): Do not use
        component_ref_for_mem_expr.
        * cfgexpand.c (add_partitioned_vars_to_ptset): New function.
        (update_alias_info_with_stack_vars): Likewise.
        (partition_stack_vars): Call update_alias_info_with_stack_vars.
        * tree-ssa.c (delete_tree_ssa): Do not release SSA names
        explicitly nor clear stmt operands.
        Free the decl-to-pointer map.
        * tree-optimize.c (execute_free_datastructures): Do not free
        SSA data structures here.
        * tree-flow.h (struct gimple_df): Add decls_to_pointers member.
        * Makefile.in (emit-rtl.o): Add pointer-set.h dependency.
        (alias.o): Add tree-ssa-alias.h, pointer-set.h and $(TREE_FLOW_H)
        dependencies.
        (print-rtl.o): Add $(DIAGNOSTIC_H) dependency.

2009-07-13  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.h (CC1_SPEC): Tweak parameters to trigger
        unrolling at the right iteration count.

        * config/mep/mep.c (mep_expand_prologue): Fix frame pointer
        calculations.

2009-07-13  Ghassan Shobaki  <ghassan.shobaki@amd.com>
        
        * haifa-sched.c (rank_for_schedule): Introduced flags to
        enable/disable individual scheduling heuristics.
        * common.opt: Introduced flags to enable/disable individual
        heuristics in the scheduler.    
        * doc/invoke.texi: Introduced flags to enable/disable individual
        heuristics in the scheduler.
        
2009-07-13  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/t-gthr-win32 (LIB2FUNCS_EXTRA): Remove file
        config/i386/mingw-tls.c.
        * config/i386/mingw-tls.c: Removed.

2009-07-13  Ira Rosen  <irar@il.ibm.com>

        * tree-vect-loop.c (get_initial_def_for_reduction): Ensure that the 
        checks access only relevant statements.
        (vectorizable_reduction): Likewise.

2009-07-12  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Define _X86_
        just for 32-bit case.

2009-07-12  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/40585
        * except.c (expand_resx_expr): When there already is resume
        instruction, produce linked list.
        (build_post_landing_pads): Assert that resume is empty.
        (connect_post_landing_pads): Handle resume lists.
        (dump_eh_tree): Dump resume list.

2009-07-12  Ira Rosen  <irar@il.ibm.com>

        * tree-parloops.c (loop_parallel_p): Call vect_is_simple_reduction
        with additional argument.
        * tree-vectorizer.h (enum vect_def_type): Add
        vect_double_reduction_def.
        (vect_is_simple_reduction): Add argument.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Fix
        indentation.
        (vect_analyze_scalar_cycles_1): Detect double reduction. Call
        vect_is_simple_reduction with additional argument.
        (vect_analyze_loop_operations): Handle exit phi nodes in case of
        double reduction.
        (reduction_code_for_scalar_code): Handle additional codes by
        returning ERROR_MARK for them. Fix comment and indentation.
        (vect_is_simple_reduction): Fix comment, add argument to specify
        double reduction. Detect double reduction.
        (get_initial_def_for_induction): Fix indentation.
        (get_initial_def_for_reduction): Fix comment and indentation.
        Handle double reduction. Create initial definitions that do not
        require adjustment if ADJUSTMENT_DEF is NULL. Handle additional cases.
        (vect_create_epilog_for_reduction): Fix comment, add argument to
        handle double reduction. Use PLUS_EXPR in case of MINUS_EXPR in
        epilogue result extraction. Create double reduction phi node and
        replace relevant uses.
        (vectorizable_reduction): Call vect_is_simple_reduction with
        additional argument. Fix indentation. Update epilogue code treatment
        according to the changes in reduction_code_for_scalar_code. Check
        for double reduction. Call vect_create_epilog_for_reduction with
        additional argument.
        * tree-vect-stmts.c (process_use): Handle double reduction, update
        documentation.
        (vect_mark_stmts_to_be_vectorized): Handle double reduction.
        (vect_get_vec_def_for_operand): Likewise.

2009-07-12  Danny Smith  <dansmister@gmail.com>

        * config/i386/winnt.c (i386_pe_determine_dllexport_p): Don't
        dllexport if !TREE_PUBLIC.
        (i386_pe_maybe_record_exported_symbol): Assert TREE_PUBLIC.

2009-07-11  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.h (TARGET_CPU_CPP_BUILTINS): Redefine.
        (avr_extra_arch_macro) Remove declatation.
        * config/avr/avr.c (avr_cpu_cpp_builtins): New function.
        (avr_extra_arch_macro) Declare as static.
        * config/avr/avr-protos.h (avr_cpu_cpp_builtins): Dclare.

2009-07-11  Jan Hubicka  <jh@suse.cz>

        PR middle-end/48388
        * except.c (can_be_reached_by_runtime): Test for NULL aka bitmap.

2009-07-11  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40713
        * dwarf2out.c (dw_fde_struct): Add in_std_section and
        cold_in_std_section bits.
        (dwarf2out_begin_prologue): Initialize them.
        (dwarf2out_finish): Don't emit FDE range into .debug_ranges
        if already covered by text_section or cold_text_section range.

        PR rtl-optimization/40667
        * defaults.h (MINIMUM_ALIGNMENT): Define if not defined.
        * doc/tm.texi (MINIMUM_ALIGNMENT): Document it.
        * config/i386/i386.h (MINIMUM_ALIGNMENT): Define.
        * config/i386/i386.c (ix86_minimum_alignment): New function.
        * config/i386/i386-protos.h (ix86_minimum_alignment): New prototype.
        * cfgexpand.c (expand_one_var): Use MINIMIM_ALIGNMENT.
        * emit-rtl.c (gen_reg_rtx): Likewise.
        * function.c (assign_parms): Likewise.  If nominal_type needs
        bigger alignment than FUNCTION_ARG_BOUNDARY, use its alignment
        rather than passed_type's alignment.

        PR target/40668
        * function.c (assign_parm_setup_stack): Adjust
        MEM_OFFSET (data->stack_parm) if promoted_mode is different
        from nominal_mode on big endian.

2009-07-11  Paolo Bonzini  <bonzini@gnu.org>

        * expmed.c (emit_store_flag_1): Fix choice of zero vs. sign extension.

2009-07-10  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_can_inline_p): Correct logic, and simplify.

2009-07-10  Mark Mitchell  <mark@codesourcery.com>

        * config/arm/thumb2.md (thumb2_cbz): Correct computation of length
        attribute.
        (thumb2_cbnz): Likewise.

2009-07-10  David Daney  <ddaney@caviumnetworks.com>

        PR target/39079
        * config.gcc (supported_defaults): Add synci.
        (with_synci): Add validation.
        (all_defaults): Add synci.
        * config/mips/mips.md (clear_cache): Use TARGET_SYNCI instead of
        ISA_HAS_SYNCI.
        (synci): Same.
        * config/mips/mips.opt (msynci): New option.
        * config/mips/mips.c (mips_override_options): Warn on use of
        -msynci for targets that do now support it.
        * gcc/config/mips/mips.h (OPTION_DEFAULT_SPECS): Add a default for
        msynci.
        * gcc/doc/invoke.texi (-msynci): Document the new option.
        * doc/install.texi (--with-synci): Document the new option.

2009-07-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40496
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Create
        the PHI result with a compatible type.

2009-07-10  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 25509
        PR 40614
        * c.opt (Wunused-result): New.
        * doc/invoke.texi: Document it.
        * c-common.c (c_warn_unused_result): Use it.

2009-07-09  DJ Delorie  <dj@redhat.com>

        * targhooks.c (default_target_can_inline_p): Rename from
        default_target_option_can_inline_p.
        * targhooks.h (default_target_can_inline_p): Likewise.
        * target-def.h (TARGET_CAN_INLINE_P): Rename from
        TARGET_OPTION_CAN_INLINE_P.
        * config/i386/i386.c (TARGET_CAN_INLINE_P): Likewise.
        * config/mep/mep.c (TARGET_CAN_INLINE_P): Likewise.
        (mep_target_can_inline_p): Rename from
        mep_target_option_can_inline_p.

        PR target/40626
        * config/mep/mep.h (FUNCTION_ARG_REGNO_P): Add coprocessor
        registers used to pass vectors.

        * config/mep/mep.c (mep_option_can_inline_p): Remove error call.

2009-07-09  Tom Tromey  <tromey@redhat.com>

        * unwind-dw2-fde-darwin.c: Include dwarf2.h.
        * config/mmix/mmix.c: Include dwarf2.h.
        * config/rs6000/darwin-fallback.c: Include dwarf2.h.
        * config/xtensa/unwind-dw2-xtensa.c: Include dwarf2.h.
        * config/sh/sh.c: Include dwarf2.h.
        * config/i386/i386.c: Include dwarf2.h.
        * Makefile.in (DWARF2_H): Remove 'elf'.
        * except.c: Include dwarf2.h.
        * unwind-dw2.c: Include dwarf2.h.
        * dwarf2out.c: Include dwarf2.h.
        * unwind-dw2-fde-glibc.c: Include dwarf2.h.
        * unwind-dw2-fde.c: Include dwarf2.h.
        * dwarf2asm.c: Include dwarf2.h.

2009-07-09  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * haifa-sched.c (insn_finishes_cycle_p): New static function.
        (max_issue): Use it.
        * sched-int.h (struct sched_info: insn_finishes_block_p): New
        scheduler hook.
        * sched-rgn.c (rgn_insn_finishes_block_p): Implement it.
        (region_sched_info): Update.
        * sched-ebb.c (ebb_sched_info): Update.
        * modulo-sched.c (sms_sched_info): Update.
        * sel-sched-ir.c (sched_sel_haifa_sched_info): Update.

2009-07-09  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * varasm.c (build_constant_desc): Don't share RTL in pool entries.

2009-07-09  Basile Starynkevitch  <basile@starynkevitch.net>

        * plugin.c (try_init_one_plugin): passes RTLD_GLOBAL to dlopen. 

2009-07-09  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40692
        * fold-const.c (fold_cond_expr_with_comparison): Don't replace
        arg1 with arg01 if arg1 is already INTEGER_CST.

2009-07-08  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_binary_operation_1) <AND>:
        Transform (and (truncate)) into (truncate (and)).

2009-07-08  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (make_extraction): Check TRULY_NOOP_TRUNCATION before
        creating LHS paradoxical subregs.  Fix surrounding returns to
        use NULL_RTX rather than 0.

2009-07-08  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c: (mep_option_can_inline_p): New.
        (TARGET_OPTION_CAN_INLINE_P): Define.

2009-07-08  Mark Wielaard  <mjw@redhat.com>

        PR debug/40659
        * dwarf2out.c (add_data_member_location_attribute): When we have
        only a constant offset don't emit a new location description using
        DW_OP_plus_uconst, but just add the constant with add_AT_int, when
        dwarf_version > 2.

2009-07-08  Richard Henderson  <rth@redhat.com>

        PR target/38900
        * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move to i386.c.
        (enum reg_class): Add CLOBBERED_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Likewise.
        * config/i386/i386.c (ix86_conditional_register_usage): Moved
        from CONDITIONAL_REGISTER_USAGE; build CLOBBERED_REGS for 64-bit.
        (ix86_function_ok_for_sibcall): Tidy.  Disallow MS->SYSV sibcalls.
        (ix86_expand_call): Use sibcall_insn_operand when needed.  Don't
        force 64-bit sibcalls into R11.
        * config/i386/constraints.md (U): New constraint.
        * config/i386/i386.md (sibcall_1, sibcall_value_1): Use it.
        (sibcall_1_rex64, sibcall_value_1_rex64): Likewise.
        (sibcall_1_rex64_v, sibcall_value_1_rex64_v): Remove.

2009-07-08  Shujing Zhao  <pearly.zhao@oracle.com>

        * basic-block.h (dump_regset, debug_regset): Remove duplicate
        prototypes.
        * c-objc-common.h (c_initialize_diagnostics): Ditto.
        * ebitmap.h (dump_ebitmap): Ditto.
        * optabs.h (optab_libfunc): Ditto.
        * tree.h (tree_expr_nonzero_warnv_p): Ditto.
        * tree-flow.h (vect_can_force_dr_alignment_p,
        get_vectype_for_scalar_type): Ditto.
        (vectorize_loops): Move prototype to ...
        * tree-vectorizer.h: ... here. Also, adjust comment.
        (vect_set_verbosity_level): Remove duplicate prototype.
        * tree-ssa-loop.c: Include tree-vectorizer.h.
        * Makefile.in (tree-ssa-loop.o): Depend on tree-vectorizer.h.

2009-07-08  Nick Clifton  <nickc@redhat.com>

        * config/i386/unix.h (ASM_COMMENT_START): Add a space after the
        forward slash.

2009-07-08  DJ Delorie  <dj@redhat.com>

        * config/mep/mep-ivc2.cpu (cpmovtocsar0_C3, cpmovtocsar1_C3,
        cpmovtocc_C3, cpmovtocsar0_P0S_P1, cpmovtocsar1_P0S_P1,
        cpmovtocc_P0S_P1): Mark volatile.  Note which registers are
        written to.
        * config/mep/intrinsics.md: Regenerated.
        * config/mep/mep.c (mep_interrupt_saved_reg): Save IVC2 control
        registers when asm() or calls are detected.

2009-07-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/31246
        * gimplify.c (gimplify_expr): Propagate no_warning flag when
        gimplifying.
        * gimple (gimple_build_call_from_tree): Likewise.
        * tree-cfg.c (remove_useless_stmts_warn_notreached): Check
        no_warning flag before warning.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree.c (set_expr_locus): Remove.
        * tree.h (EXPR_LOCUS,SET_EXPR_LOCUS,set_expr_locus): Remove.
        * c-typeck.c (c_finish_stmt_expr):  Replace EXPR_LOCUS by
        EXPR_LOCATION.
        * gimplify.c (internal_get_tmp_var): Likewise.
        (gimplify_call_expr): Likewise.
        (gimplify_one_sizepos): Likewise.

2009-07-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR debug/40666
        * dbxout.c (dbxout_symbol) <PARM_DECL>: Deal with parameters pointing
        to variables for debugging purposes.

2009-06-23  Mark Loeser  <mark@halcy0n.com>

        PR build/40010
        * Makefile.in (gcc.pod): Depend on gcc-vers.texi.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * pretty-print.c (pp_base_format): Remove %J.
        * c-format.c (gcc_diag_char_table, gcc_tdiag_char_table,
        gcc_cxxdiag_char_table): Likewise.
        (init_dynamic_diag_info): Likewise.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * pretty-print.c (pp_base_format): Remove %H.
        * c-format.c (gcc_diag_char_table, gcc_tdiag_char_table,
        gcc_cxxdiag_char_table): Likewise.
        (init_dynamic_diag_info): Likewise.
        * config/mep/mep.c (mep_select_section): Likewise.

2009-07-07  Duncan Sands  <baldrick@free.fr>

        * final.c (pass_clean_state): Give the pass a name.
        * passes.c (pass_rest_of_compilation): Likewise.
        * tree-optimize.c (pass_all_optimizations): Likewise.

2009-07-07  H.J. Lu  <hongjiu.lu@intel.com>

        * config/ia64/ia64.c (ia64_handle_model_attribute): Remove
        an extra 'decl' for error_at.

2009-07-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40669
        * tree-tailcall.c (adjust_return_value_with_ops,
        create_tailcall_accumulator): Set DECL_GIMPLE_REG_P on the temporary
        if it has complex or vector type.

2009-07-07  Olivier Hainque  <hainque@adacore.com>

        * config/alpha/t-osf4 (SHLIB_LINK): Do not hide the dummy weak
        pthread symbols.

2009-07-07  Basile Starynkevitch  <basile@starynkevitch.net>

        * Makefile.in: added more lists of includes to PLUGIN_HEADERS.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * cgraphunit.c: Replace %J by an explicit location.  Update all calls.
        * c-decl.c: Likewise.
        * function.c: Likewise.
        * varasm.c: Likewise.
        * tree-ssa.c: Likewise.
        * c-common.c: Likewise.
        * tree-cfg.c: Likewise.
        * config/spu/spu.c: Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/v850/v850.c: Likewise.

2009-07-06  DJ Delorie  <dj@redhat.com>

        * config/mep/mep-core.cpu (fsft, ssarb): Mark as VOLATILE.
        * config/mep/mep-ivc2.cpu (many): Add VOLATILE to more insns that make
        unspecified accesses to control registers.
        * config/mep/intrinsics.md: Regenerate.
        * config/mep/intrinsics.h: Regenerate.
        * config/mep/mep-intrin.h: Regenerate.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * c-lex.c: Replace %H by an explicit location. Update all calls.
        * c-common.c: Likewise.
        * c-decl.c: Likewise.
        * c-typeck.c: Likewise.
        * fold-const.c: Likewise.
        * gimplify.c: Likewise.
        * stmt.c: Likewise.
        * tree-cfg.c: Likewise.
        * tree-ssa-loop-niter.c: Likewise.
        * tree-vrp.c: Likewise.
        * value-prof.c: Likewise.

2009-07-06  Diego Novillo  <dnovillo@google.com>

        * tree-dfa.c (dump_variable): Write DECL_INITIAL for VAR
        if it has one.  Handle cases where VAR does not have an
        annotation or cfun is NULL.

2009-07-06  Diego Novillo  <dnovillo@google.com>

        * tree.c: Include debug.h.
        (initialize_tree_contains_struct): New.
        (init_ttree): Call it.
        (tree_node_structure_for_code): Factor out of ...
        (tree_node_structure): ... here.
        * treestruct.def (TS_PHI_NODE): Remove.
        (TS_GIMPLE_STATEMENT): Remove.

2009-07-06  Diego Novillo  <dnovillo@google.com>

        * tree-pretty-print.c (dump_generic_node): Protect against NULL op0.
        (debug_tree_chain): Handle cycles.

2009-07-06  Nick Clifton  <nickc@redhat.com>
            DJ Delorie  <dj@redhat.com>

        * config.sh/lib1funcs.h (FMOVD_WORKS): Only define if
        __FMOVD_ENABLED__ is defined.
        * config/sh/sh.h
        (TARGET_FMOVD): Provide a default definition.
        (MASK_FMOVD): Likewise.
        (TARGET_CPU_CPP_BUILTINS): Define
        __FMOVD_ENABLED__ if TARGET_FMOVD is true.
        * config/sh/sh.md (movdf_i4): For alternative 0 use either one or
        two fmov instructions depending upon whether TARGET_FMOVD is enabled.
        (split for DF load from memory into register): Also handle
        MEMs which consist of REG+DISP addressing.
        (split for DF store from register to memory): Likewise.
        (movsf_ie): Always use single fp_mode.
        * config/sh/sh.c (sh_override_options): Do not automatically
        enable TARGET_MOVD for the SH2A when supporting doubles - leave
        that to the -mfmovd command line switch.
        (broken_move): Do not restrict fldi test to only the SH4 and SH4A.
        (fldi_ok): Always allow.
        * config/sh/sh.opt (mfmovd): Remove this switch.
        * doc/invoke.texi (-mfmovd): Remove documentation of this switch.

2009-07-06  J"orn Rennecke  <joern.rennecke@arc.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/30807
        * postreload.c (reload_combine): For every new use of REG_SUM,
        record the use of BASE.

2009-07-06  Jan Hubicka  <jh@suse.cz>

        * params.def: Revert my accidental commit at 2009-06-30.

2009-07-04  Ian Lance Taylor  <iant@google.com>

        PR target/40636
        * config/i386/msformat-c.c (mingw_format_attributes): Declare as
        EXPORTED_CONST.
        (mingw_format_attribute_overrides): Likewise.

2009-07-04  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40596
        * dwarf2out.c (based_loc_descr): For crtl->stack_realign_tried
        don't check cfa.reg.  Instead of cfa.indirect use
        fde && fde->drap_reg != INVALID_REGNUM test.

2009-07-04  Eric Botcazou  <ebotcazou@adacore.com>

        * postreload.c (reload_combine): Replace CONST_REG with INDEX_REG.

2009-07-03  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/40587
        * ira.c (build_insn_chain): Use DF_LR_OUT instead of df_get_live_out.

2009-07-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40640
        * tree-switch-conversion.c (build_arrays): Perform arithmetic
        in original type.

2009-07-03  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): When optimizing
        for size, reduce amount of inlining.

2009-07-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34163
        * tree-chrec.c (chrec_convert_1): Fold (T2)(t +- x) to (T2)t +- (T2)x
        if t +- x is known to not overflow and the conversion widens the
        operation.
        * Makefile.in (tree-chrec.o): Add $(FLAGS_H) dependency.

2009-07-03  Jan Hubicka  <jh@suse.cz>

        * ipa-pure-const.c (analyze): Update loop optimizer init.
        * tree-ssa-loop-iv-canon.c (empty_loop_p, remove_empty_loop,
        try_remove_empty_loop, remove_empty_loops): Remove.
        * tree-ssa-loop.c (tree_ssa_empty_loop, pass_empty_loop): Remove.
        * tree-ssa-dce.c (find_obviously_necessary_stmts): Use finiteness info
        to mark regular loops as neccesary.
        (degenerate_phi_p): New function.
        (propagate_necessity, remove_dead_phis): Use it.
        (forward_edge_to_pdom): Likewise.
        (eliminate_unnecessary_stmts): Take care to remove uses of results of
        virtual PHI nodes that became unreachable.
        (perform_tree_ssa_dce): Initialize/deinitialize loop optimizer.
        * tree-flow.h (remove_empty_loops): Remove.
        * passes.c (init_optimization_passes): Remove.

2009-07-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fix_trunc<mode>_fisttp_i387_1): Use
        can_create_pseudo_p.
        (*fix_trunc<mode>_i387_1): Ditto.
        (*floathi<mode>2_1): Ditto.
        (*float<SSEMODEI24:mode><X87MODEF:mode>2_1): Ditto.
        (*fistdi2_1): Ditto.
        (*fist<mode>2_1): Ditto.
        (frndintxf2_floor): Ditto.
        (*fist<mode>2_floor_1): Ditto.
        (frndintxf2_ceil): Ditto.
        (*fist<mode>2_ceil_1): Ditto.
        (frndintxf2_trunc): Ditto.
        (frndintxf2_mask_pm): Ditto.
        (fxam<mode>2_i387_with_temp): Ditto.
        * config/i386/sse.md (mulv16qi3): Ditto.
        (*sse2_mulv4si3): Ditto.
        (mulv2di3): Ditto.
        (sse4_2_pcmpestr): Ditto.
        (sse4_2_pcmpistr): Ditto.

2009-07-03  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (bb_contains_live_stmts): New bitmap.
        (mark_stmt_necessary): Set it.
        (mark_operand_necessary): Set it.
        (mark_control_dependent_edges_necessary): Set it.
        (mark_virtual_phi_result_for_renaming): New function.
        (get_live_post_dom): New function.
        (forward_edge_to_pdom): New function.
        (remove_dead_stmt): Fix handling of control dependences.
        (tree_dce_init): Init new bitmap.
        (tree_dce_done): Free it.

2009-07-02  Richard Guenther  <rguenther@suse.de>

        PR bootstrap/40617
        * tree-ssa-structalias.c (new_var_info): Initialize
        is_restrict_var.

2009-07-02  Jan Hubicka  <jh@suse.cz>

        * ipa-pure-const.c (check_op): Use PTA info to see if indirect_ref is
        local.

2009-07-02  Paolo Bonzini  <bonzini@gnu.org>

        * expmed.c (emit_cstore, emit_store_flag_1): Accept target_mode
        instead of recomputing it.  Adjust calls.
        (emit_store_flag): Adjust recursive calls.

2009-07-02  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-live.c (remove_unused_locals): Do not remove
        heap variables.
        * tree-ssa-structalias.c (handle_lhs_call): Delay setting
        of DECL_EXTERNAL for HEAP variables.
        (compute_points_to_sets): Set DECL_EXTERNAL for escaped
        HEAP variables.  Do not adjust RESTRICT vars.
        (find_what_var_points_to): Nobody cares if something
        points to READONLY.

2009-07-02  Ben Elliston  <bje@au.ibm.com>

        * unwind-dw2-fde-glibc.c (_Unwind_IteratePhdrCallback): Move
        pc_low and pc_high declarations to the top of the function.

2009-07-01  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_handle_option): Leave IVC2 control
        registers as fixed.
        (mep_interrupt_saved_reg): Save appropriate IVC2 control registers.
        * config/mep/mep-ivc2.cpu: Add VOLATILE to insns that make
        unspecified accesses to control registers.
        * config/mep/intrinsics.md: Regenerate.
        * config/mep/intrinsics.h: Regenerate.
        * config/mep/mep-intrin.h: Regenerate.

2009-07-01  Anthony Green  <green@moxielogic.com>

        * config/moxie/moxie.c (moxie_expand_prologue): Use dec
        instruction when possible.
        (moxie_expand_prologue): Ditto.  Also, save an instruction and
        some complexity by popping off of $r12 instead of $sp.
        * config/moxie/moxie.md (movsi_pop): Don't assume $sp.  Take two
        operands.

2009-07-01  Richard Henderson  <rth@redhat.com>

        PR bootstrap/40347
        * function.c (reposition_prologue_and_epilogue_notes): If epilogue
        contained no insns, reposition note before last insn.

2009-07-01  Richard Henderson  <rth@redhat.com>

        PR debug/40431
        * dwarf2out.c (def_cfa_1): Revert 2009-06-11 change for
        DW_CFA_def_cfa_offset and DW_CFA_def_cfa.

2009-07-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR bootstrap/40558
        * config/rs6000/rs6000.c (print_operand): Undo change that breaks
        darwin9 for printing reg addresses with %y.

2009-07-01  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (force_to_mode): Handle TRUNCATE.  Factor out
        truncation from operands in binary operations.

2009-07-01  Adam Nemet  <anemet@caviumnetworks.com>

        Revert:
        2009-01-11  Adam Nemet  <anemet@caviumnetworks.com>
        * expmed.c (store_bit_field_1): Properly truncate the paradoxical
        subreg of op0 to the original op0.

        * expmed.c (store_bit_field_1): Use a temporary as the destination
        instead of a paradoxical subreg when we need to truncate the result.

2009-07-01  DJ Delorie  <dj@redhat.com>

        * config/mep/mep-ivc2.cpu (cmov, cmovc, cmovh): Add intrinsic
        names to VLIW variants.
        (ivc2rm, ivc2crn): Make data type consistent with non-VLIW variants.
        * config/mep/intrinsics.md: Regenerate.
        * config/mep/intrinsics.h: Regenerate.
        * config/mep/mep-intrin.h: Regenerate.

2009-07-01  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40462
        * jump.c (returnjump_p): Revert last patch.
        * dwarf2out.c (dwarf2out_begin_epilogue): Handle SEQUENCEs.

2009-07-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/40575
        * pa.md (casesi32p): Use jump table label to determine the offset
        of the jump table.
        (casesi64p): Likewise.

        * pa.c (forward_branch_p): Return bool type.  Use instruction
        addresses when available.  Assert that INSN has a jump label.
        (pa_adjust_insn_length): Don't call forward_branch_p if INSN doesn't
        have a jump label.

2009-07-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/19831
        * tree-ssa-dce.c (propagate_necessity): Calls to functions
        that only act as barriers do not make any previous stores necessary.
        * tree-ssa-structalias.c (handle_lhs_call): Delay making
        HEAP variables global, do not add a constraint from nonlocal.
        (find_func_aliases): Handle escapes through return statements.
        (compute_points_to_sets): Make escaped HEAP variables global.

2009-07-01  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/40597
        * expmed.c (emit_store_flag): Perform a conversion if necessary,
        after reducing a DImode cstore to SImode.

2009-07-01  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (expand_expr_real_1): Reinstate fallthrough to
        TRUTH_ANDIF_EXPR if do_store_flag returns NULL.

2009-07-01  Maciej W. Rozycki  <macro@linux-mips.org>

        * config/vax/vax.h (TARGET_BSD_DIVMOD): New macro.  Set to 1.
        * config/vax/linux.h (TARGET_BSD_DIVMOD): New macro.  Redefine the
        to 0.
        * config/vax/vax.c (vax_init_libfuncs): Only redefine udiv_optab
        and umod_optab if TARGET_BSD_DIVMOD.
        * config/vax/lib1funcs.asm: New file.
        * config/vax/t-linux: New file.
        * config.gcc (vax-*-linux*): Set tmake_file to vax/t-linux.

2009-06-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/40566
        * convert.c (convert_to_integer) <case COND_EXPR>: Don't convert
        to type arguments that have void type.

        PR debug/40573
        * dwarf2out.c (gen_formal_parameter_die): Call
        equate_decl_number_to_die if node is different from origin.

2009-06-30  Anthony Green  <green@moxielogic.com>

        Clean up moxie port for --enable-build-with-cxx.
        * config/moxie/moxie.c (moxie_function_value): First two
        parameters are const_tree, not tree.
        * config/moxie/moxie.h (enum reg_class): Rename CC_REG to CC_REGS.
        (REG_CLASS_NAMES): Ditto.
        (REGNO_REG_CLASS): Ditto.
        * config/moxie/moxie-protos.h (moxie_override_options): Declare.
        (moxie_function_value): Fix constyness of arguments.

2009-06-30  Eric Botcazou  <ebotcazou@adacore.com>

        * cgraphunit.c (cgraph_finalize_compilation_unit): Call
        finalize_size_functions before further processing.
        * stor-layout.c: Include cgraph.h, tree-inline.h and tree-dump.h.
        (variable_size): Call self_referential_size on size expressions
        that contain a PLACEHOLDER_EXPR.
        (size_functions): New static variable.
        (copy_self_referential_tree_r): New static function.
        (self_referential_size): Likewise.
        (finalize_size_functions): New global function.
        * tree.c: Include tree-inline.h.
        (push_without_duplicates): New static function.
        (find_placeholder_in_expr): New global function.
        (substitute_in_expr) <tcc_declaration>: Return the replacement object
        on equality.
        <tcc_expression>: Likewise.
        <tcc_vl_exp>: If the replacement object is a constant, try to inline
        the call in the expression.
        * tree.h (finalize_size_functions): Declare.
        (find_placeholder_in_expr): Likewise.
        (FIND_PLACEHOLDER_IN_EXPR): New macro.
        (substitute_placeholder_in_expr): Update comment.
        * tree-inline.c (remap_decl): Do not unshare trees if do_not_unshare
        is true.
        (copy_tree_body_r): Likewise.
        (copy_tree_body): New static function.
        (maybe_inline_call_in_expr): New global function.
        * tree-inline.h (struct copy_body_data): Add do_not_unshare field.
        (maybe_inline_call_in_expr): Declare.
        * Makefile.in (tree.o): Depend on TREE_INLINE_H.
        (stor-layout.o): Depend on CGRAPH_H, TREE_INLINE_H, TREE_DUMP_H and
        GIMPLE_H.

2009-06-30  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-dce.c (mark_all_reaching_defs_necessary_1): Always
        continue walking.
        (propagate_necessity): Do not mark reaching defs of stores
        as necessary.

2009-06-30  Jan Hubicka  <jh@suse.cz>

        * cfgloopanal.c (check_irred): Move into ...
        (mark_irreducible_loops): ... here; return true if ireducible
        loops was found.
        * ipa-pure-const.c: Include cfgloop.h and tree-scalar-evolution.h
        (analyze_function): Try to prove loop finiteness.
        * cfgloop.h (mark_irreducible_loops): Update prototype.
        * Makefile.in (ipa-pure-const.o): Add dependency on SCEV and CFGLOOP.

2009-06-30  Basile Starynkevitch  <basile@starynkevitch.net>

        * Makefile.in (PLUGIN_HEADERS): added ggc, tree-dump, pretty-print.

2009-06-30  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/40542
        * tree-vect-stmts.c (vect_analyze_stmt): Don't vectorize volatile 
        types.

2009-06-30  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40582
        * tree-sra.c (build_ref_for_offset_1): Use types_compatible_p rather
        than useless_type_conversion_p.
        (generate_subtree_copies): Increment sra_stats.subtree_copies at a
        proper place.

2009-06-30  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/40554
        * tree-sra.c (sra_modify_expr): Add access->offset to start_offset.

2009-06-30  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (walk_aliased_vdefs_1): Change interface to
        use ao_ref references.
        (walk_aliased_vdefs): Likewise.
        * tree-ssa-alias.h (walk_aliased_vdefs): Adjust prototype.
        * tree-ssa-dce.c (struct ref_data): Remove.
        (mark_aliased_reaching_defs_necessary_1): Use the ao_ref argument.
        (mark_aliased_reaching_defs_necessary): Adjust.
        (mark_all_reaching_defs_necessary_1): Likewise.

2009-06-30  Paolo Bonzini  <bonzini@gnu.org>

        PR boostrap/40597
        * expmed.c (emit_cstore): New name of emit_store_flag_1.
        (emit_store_flag_1): Extract from emit_store_flag, adjust
        calls to (what now is) emit_cstore.
        (emit_store_flag): Call emit_store_flag_1 and also use it
        for what used to be recursive calls.

2009-06-30  Wei Guozhi  <carrot@google.com>

        PR/40416
        * tree-ssa-sink.c (statement_sink_location): Stop sinking expression
        if the target bb post dominates from bb.
        * config/i386/i386.c (memory_address_length): Check existence of base
        register before using it.

2009-06-30  Nick Clifton  <nickc@redhat.com>
            DJ Delorie  <dj@redhat.com>

        * config.sh/lib1funcs.h (FMOVD_WORKS): Only define if
        __FMOVD_ENABLED__ is defined.
        * config/sh/sh.h
        (TARGET_FMOVD): Provide a default definition.
        (MASK_FMOVD): Likewise.
        (TARGET_CPU_CPP_BUILTINS): Define
        __FMOVD_ENABLED__ if TARGET_FMOVD is true.
        * config/sh/sh.md (movdf_i4): For alternative 0 use either one or
        two fmov instructions depending upon whether TARGET_FMOVD is
        enabled.
        (split for DF load from memory into register): Also handle
        MEMs which consist of REG+DISP addressing.
        (split for DF store from register to memory): Likewise.
        * config/sh/sh.opt (mfmovd): Remove this switch.
        * doc/invoke.texi (-mfmovd): Remove documentation of this switch.
        * config/sh/sh.c (sh_override_options): Do not automatically
        enable TARGET_MOVD for the SH2A when supporting doubles - leave
        that to the -mfmovd command line switch.

        * config/sh/sh.c (broken_move): Do not restrict fldi test to only
        the SH4 and SH4A.
        (fldi_ok): Always allow.
        * config/sh/sh.md (movsf_ie): Always use single fp_mode.

2009-06-29  DJ Delorie  <dj@redhat.com>

        * doc/install.texi (mep-x-elf): Correct chip's full name.

2009-06-29  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/extend.texi: Fix typo.

2009-06-29  Tom Tromey  <tromey@redhat.com>

        * dwarf2.h: Remove.
        * Makefile.in (DWARF2_H): New variable.
        (except.o): Use it.
        (dwarf2out.o): Likewise.
        (dwarf2asm.o): Likewise.
        * config/i386/t-i386: Use DWARF2_H.
        * except.c: Include elf/dwarf2.h.
        * unwind-dw2.c: Include elf/dwarf2.h.
        * dwarf2out.c: Include elf/dwarf2.h.
        (dw_loc_descr_struct) <dw_loc_opc>: Now a bitfield.
        <dtprel>: New field.
        (dwarf_stack_op_name): Don't handle INTERNAL_DW_OP_tls_addr.
        (size_of_loc_descr): Likewise.
        (output_loc_operands_raw): Likewise.
        (output_loc_operands): Handle new dtprel field.
        (loc_checksum): Update.
        (loc_descriptor_from_tree_1) <VAR_DDECL>: Set dtprel field.
        * unwind-dw2-fde-glibc.c: Include elf/dwarf2.h.
        * unwind-dw2-fde.c: Include elf/dwarf2.h.
        * dwarf2asm.c: Include elf/dwarf2.h.
        * unwind-dw2-fde-darwin.c: Include elf/dwarf2.h.
        * config/mmix/mmix.c: Include elf/dwarf2.h.
        * config/rs6000/darwin-fallback.c: Include elf/dwarf2.h.
        * config/xtensa/unwind-dw2-xtensa.c: Include elf/dwarf2.h.
        * config/sh/sh.c: Include elf/dwarf2.h.
        * config/i386/i386.c: Include elf/dwarf2.h.

2009-06-29  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.h (CPP_SPEC): Remove __cop macro.

        * doc/extend.texi: Add MeP attributes and pragmas.
        * doc/invoke.text: Add MeP Options.
        * doc/contrib.texi: Add MeP contribution.
        * doc/md.texi: Add MeP constraints.
        * doc/install.texi: Add MeP target.

2009-06-30  Anatoly Sokolov  <aesok@post.ru>

        * target.h (struct gcc_target): Add frame_pointer_required field.
        * target-def.h (TARGET_FRAME_POINTER_REQUIRED): New.
        (TARGET_INITIALIZER): Use TARGET_FRAME_POINTER_REQUIRED.
        * ira.c (setup_eliminable_regset): Use frame_pointer_required target
        hook.
        * reload1.c (update_eliminables): (Ditto.).
        * gcc/system.h (FRAME_POINTER_REQUIRED): Poison.
        * doc/tm.texi (FRAME_POINTER_REQUIRED): Revise documentation.
        (INITIAL_FRAME_POINTER_OFFSET): (Ditto.).

        * config/arc/arc.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/arm/arm.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/arm/arm.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (arm_frame_pointer_required): New function.

        * config/avr/avr.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/avr/avr.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (avr_frame_pointer_required_p): Declare as static.
        * config/avr/avr-protos.h (avr_frame_pointer_required_p): Remove.

        * config/bfin/bfin.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/bfin/bfin.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (bfin_frame_pointer_required): Make as static, change return type
        to bool.
        * config/bfin/bfin-protos.h (bfin_frame_pointer_required): Remove.

        * config/cris/cris.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/cris/cris.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (cris_frame_pointer_required): New function.
        
        * config/crx/crx.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/fr30/fr30.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/fr30/fr30.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (fr30_frame_pointer_required): New function.
        
        * config/frv/frv.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/frv/frv.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (frv_frame_pointer_required): Make as static, change return type
        to bool.
        * config/bfin/bfin-protos.h (frv_frame_pointer_required): Remove.

        * config/i386/i386.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/i386/i386.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (ix86_frame_pointer_required): Make as static, change return type to
        bool.
        * config/i386/i386-protos.h (ix86_frame_pointer_required): Remove.

        * config/m32c/m32c.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/m32c/m32c.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.

        * config/m32r/m32r.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/mcore/mcore.h (CAN_ELIMINATE): Remove macro.
        
        * config/mep/mep.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/mips/mips.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/mips/mips.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (mips_frame_pointer_required): Make as static.
        * config/mips/mips-protos.h (mips_frame_pointer_required): Remove.
        
        * config/mmix/mmix.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/mmix/mmix.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (mmix_frame_pointer_required): Mew function.

        * config/moxie/moxie.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/moxie/moxie.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.

        * config/pa/pa.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/score/score.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/sh/sh.h (CAN_ELIMINATE): Remove macro.

        * config/sparc/sparc.h (FRAME_POINTER_REQUIRED): Remove macro.
        (CAN_ELIMINATE): Redefine.
        * config/sparc/sparc.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (sparc_frame_pointer_required): New function.
        (sparc_can_eliminate): New function.
        * config/sparc/sparc-protos.h (sparc_can_eliminate): Declare.

        * config/vax/vax.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/vax/vax.c (TARGET_FRAME_POINTER_REQUIRED): Define.

        * config/xtensa/xtensa.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/xtensa/xtensa.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (xtensa_frame_pointer_required): Make as static, change return type
        to bool.
        * config/xtensa/xtensa-protos.h (xtensa_frame_pointer_required):
        Remove.

2009-06-29  Olatunji Ruwase  <tjruwase@google.com>

        * doc/plugins.texi: Document PLUGIN_START_UNIT.
        * toplev.c (compile_file): Call PLUGIN_START_UNIT.
        * gcc-plugin.h (PLUGIN_START_UNIT): Added new event.
        * plugin.c (plugin_event_name): Added PLUGIN_START_UNIT.
        (register_callback): Handle PLUGIN_START_UNIT.
        (invoke_plugin_callbacks): Handle PLUGIN_START_UNIT.

2009-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (process_call_operands): Propagate TREE_READONLY from the
        operands.
        (PROCESS_ARG): Do not clear TREE_READONLY if CONSTANT_CLASS_P.
        (build3_stat): Propagate TREE_READONLY for COND_EXPR.

2009-06-29  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/arm/arm.h (REGISTER_MOVE_COST): Increase VFP register
        move cost.

2009-06-29  Uros Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (Additional Floating Types): __float128 is also
        supported on i386 targets.

2009-06-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/14187
        * tree-ssa-alias.h (struct pt_solution): Add vars_contains_restrict
        flag.
        (pt_solutions_same_restrict_base): Declare.
        * tree-ssa-structalias.c (struct variable_info): Add is_restrict_var
        flag.
        (new_var_info): Initialize is_global_var properly for SSA_NAMEs.
        (make_constraint_from, make_copy_constraint): Move earlier.
        (make_constraint_from_heapvar): New function.
        (make_constraint_from_restrict): Likewise.
        (handle_lhs_call): Use it.
        (find_func_aliases): Use it to track conversions to restrict
        qualified pointers.
        (struct fieldoff): Add only_restrict_pointers flag.
        (push_fields_onto_fieldstack): Initialize it.
        (create_variable_info_for): Track global restrict qualified pointers.
        (intra_create_variable_infos): Use make_constraint_from_heapvar.
        Track restrict qualified pointer arguments.
        (set_uids_in_ptset): Use varinfo is_global_var flag.
        (find_what_var_points_to): Set the vars_contains_restrict flag.
        Always create the points-to solution for sets including restrict tags.
        (pt_solutions_same_restrict_base): New function.
        * tree-ssa-alias.c (ptr_derefs_may_alias_p): For two restrict
        qualified pointers use pt_solutions_same_restrict_base as
        additional source for disambiguation.

2009-06-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/38212
        * alias.c (find_base_decl): Remove.
        (get_deref_alias_set_1): Remove restrict handling.
        * c-common.c (c_apply_type_quals_to_decl): Do not set
        DECL_POINTER_ALIAS_SET.
        * gimplify.c (find_single_pointer_decl_1): Remove.
        (find_single_pointer_decl): Likewise.
        (internal_get_tmp_var): Remove restrict handling.
        (gimple_regimplify_operands): Likewise.
        * omp-low.c (expand_omp_atomic_pipeline): Do not set
        DECL_POINTER_ALIAS_SET. Use ref-all pointers.
        * print-tree.c (print_node): Do not print DECL_POINTER_ALIAS_SET.
        * tree.c (restrict_base_for_decl): Remove.
        (init_ttree): Do not allocate it.
        (make_node_stat): Do not set DECL_POINTER_ALIAS_SET.  Set
        LABEL_DECL_UID for label decls.
        (copy_node_stat): Do not copy restrict information.
        (decl_restrict_base_lookup): Remove.
        (decl_restrict_base_insert): Likewise.
        (print_restrict_base_statistics): Likewise.
        (dump_tree_statistics): Do not call print_restrict_base_statistics.
        * tree.h (DECL_POINTER_ALIAS_SET): Remove.
        (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
        (struct tree_decl_common): Rename pointer_alias_set to label_decl_uid.
        (LABEL_DECL_UID): Adjust.
        (DECL_BASED_ON_RESTRICT_P): Remove.
        (DECL_GET_RESTRICT_BASE): Likewise.
        (SET_DECL_RESTRICT_BASE): Likewise.
        (struct tree_decl_with_vis): Remove based_on_restrict_p flag.

        * config/i386/i386.c (ix86_gimplify_va_arg): Use ref-all pointers
        instead of DECL_POINTER_ALIAS_SET.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
        * config/s390/s390.c (s390_gimplify_va_arg): Likewise.
        * config/spu/spu.c (spu_gimplify_va_arg_expr): Likewise.

2009-06-29  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40579
        * tree-vrp.c (vrp_evaluate_conditional): Bail out early if
        the IL to simplify has constants that overflowed.

2009-06-28  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/40550
        * tree-vect-generic.c (expand_vector_operations_1): Compute in
        vector_compute_type only when the size of vector_compute_type is
        less than the size of type.

2009-06-28  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (contains_label_1): Fix comments.
        (contains_label_p): Do not walk trees multiple time.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.h (enum ix86_fpcmp_strategy): New.
        * config/i386/i386.md (cbranchxf4, cstorexf4, cbranch<MODEF>4,
        cstore<MODEF>4, mov<X87MODEF>cc): Change predicate to
        ix86_fp_comparison_operator.
        (*fp_jcc_1_mixed, *fp_jcc_1_sse, *fp_jcc_1_387, *fp_jcc_2_mixed,
        *fp_jcc_2_sse, *fp_jcc_2_387): Delete
        (*fp_jcc_3_387, *fp_jcc_4_387, *fp_jcc_5_387, *fp_jcc_6_387,
        *fp_jcc_7_387, *fp_jcc_8<MODEF>_387): Eliminate call to
        !ix86_use_fcomi_compare, change ix86_fp_jump_nontrivial_p call
        to !TARGET_CMOVE, change predicate to ix86_fp_comparison_operator.
        (related splits): Change predicate to ix86_fp_comparison_operator.
        * config/i386/predicates.md: Use ix86_trivial_fp_comparison_operator
        instead of ix86_fp_comparison_codes.
        (ix86_trivial_fp_comparison_operator,
        ix86_fp_comparison_operator): New.
        * config/i386/i386-protos.h (ix86_fp_comparison_strategy): New.
        (ix86_expand_compare): Eliminate last two parameters.
        (ix86_fp_jump_nontrivial_p): Kill.
        * config/i386/i386.c (put_condition_code): Eliminate call to
        ix86_fp_comparison_codes and subsequent assertion.
        (ix86_fp_comparison_codes): Eliminate.
        (ix86_fp_swap_condition): New.
        (ix86_fp_comparison_arithmetics_cost, ix86_fp_comparison_fcomi_cost,
        ix86_fp_comparison_sahf_cost, ix86_use_fcomi_compare): Consolidate
        into ix86_fp_comparison_cost and ix86_fp_comparison_strategy.
        (ix86_prepare_fp_compare_args): Use ix86_fp_comparison_strategy
        and ix86_fp_swap_condition.
        (ix86_expand_fp_compare): Eliminate code for second jump/bypass jump.
        Use ix86_fp_comparison_strategy.
        (ix86_expand_compare): Likewise.  Eliminate last two arguments.
        (ix86_fp_jump_nontrivial_p): Eliminate.
        (ix86_expand_branch): Treat SFmode/DFmode/XFmode as simple.  Adjust
        call to ix86_expand_compare.
        (ix86_split_fp_branch, ix86_expand_setcc,
        ix86_expand_carry_flag_compare, ix86_expand_int_movcc,
        ix86_expand_fp_movcc): Eliminate code for second jump/bypass jump.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * config/arm/arm.c (arm_final_prescan_ins): Eliminate code
        related to jump_clobbers.
        * config/arm/arm.md (conds): Remove jump_clob case.
        (addsi3_cbranch, addsi3_cbranch_scratch, subsi3_cbranch, two
        splits): Change comparison_operator to arm_comparison_operator.
        (*arm_buneq, *arm_bltgt, *arm_buneq_reversed, *arm_bltgt_reversed):
        Eliminate.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * dojump.c (do_compare_rtx_and_jump): Try swapping the
        condition for floating point modes.
        * expmed.c (emit_store_flag_1): Move here a bigger part
        of emit_store_flag.
        (emit_store_flag): Try swapping the condition for floating point
        modes.
        * optabs.c (emit_cmp_and_jump_insns): Cope with constant op0 better.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (expand_expr_real_1): Just use do_store_flag.
        (do_store_flag): Drop support for TRUTH_NOT_EXPR.  Use
        emit_store_flag_force.
        * expmed.c (emit_store_flag_force): Copy here trick
        previously in expand_expr_real_1.  Try reversing the comparison.
        (emit_store_flag_1): Work if target is NULL.
        (emit_store_flag): Work if target is NULL, using the result mode
        from the comparison.  Use split_comparison, restructure final part
        to simplify conditionals.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * builtins.c (expand_errno_check): Use do_compare_rtx_and_jump.
        * dojump.c (do_jump): Change handling of floating-point
        ops to use just do_compare_and_jump.
        (split_comparison): New.
        (do_compare_rtx_and_jump): Add here logic coming previously
        in do_jump, using split_comparison.

2009-06-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/40489
        * config/ia64/ia64.c (ia64_reorg): Check NULL insn.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * tree-ssa-alias.c: Fix unintentional commit.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * passes.c (execute_one_pass): Fix unintentional commit.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * df-problems.c (df_set_seen, df_unset_seen): Delete.
        (df_rd_local_compute, df_md_local_compute): Inline them.

        (df_md_scratch): New.
        (df_md_alloc, df_md_free): Allocate/free it.
        (df_md_local_compute): Only include live registers in init.
        (df_md_transfer_function): Prune the in-set computed by
        the confluence function, and the gen-set too.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/26854
        * timevar.def: Remove TV_DF_RU, add TV_DF_MD.
        * df-problems.c (df_rd_add_problem): Fix comment.
        (df_md_set_bb_info, df_md_free_bb_info, df_md_alloc,
        df_md_simulate_artificial_defs_at_top,
        df_md_simulate_one_insn, df_md_bb_local_compute_process_def,
        df_md_bb_local_compute, df_md_local_compute, df_md_reset,
        df_md_transfer_function, df_md_init, df_md_confluence_0,
        df_md_confluence_n, df_md_free, df_md_top_dump, df_md_bottom_dump,
        problem_MD, df_md_add_problem): New.
        * df.h (DF_MD, DF_MD_BB_INFO, struct df_md_bb_info, df_md,
        df_md_get_bb_info): New.
        (DF_LAST_PROBLEM_PLUS1): Adjust.

        * Makefile.in (fwprop.o): Include domwalk.h.
        * fwprop.c: Include domwalk.h.
        (reg_defs, reg_defs_stack): New.
        (bitmap_only_bit_between): Remove.
        (process_defs): New.
        (process_uses): Use reg_defs and local_md instead of
        bitmap_only_bit_between and local_rd.
        (single_def_use_enter_block): New, from build_single_def_use_links.
        (single_def_use_leave_block): New.
        (build_single_def_use_links): Remove code moved to
        single_def_use_enter_block, invoke domwalk.
        (use_killed_between): Adjust comment.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * bitmap.h (bitmap_ior_and_into): New.
        * bitmap.c (bitmap_ior_and_into): New.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * domwalk.h (struct dom_walk_data): Remove all callbacks except
        before_dom_children_before_stmts and after_dom_children_after_stmts.
        Rename the two remaining callbacks to just before_dom_children and 
        after_dom_children. Remove other GIMPLE statement walking bits.
        * domwalk.c (walk_dominator_tree): Remove now unsupported features.
        * graphite.c: Do not include domwalk.h.
        * tree-into-ssa.c (interesting_blocks): New global.
        (struct mark_def_sites_global_data): Remove it and names_to_rename.
        (mark_def_sites, rewrite_stmt, rewrite_add_phi_arguments,
        rewrite_update_stmt, rewrite_update_phi_arguments): Simplify
        now that they're not domwalk callbacks.
        (rewrite_initialize_block): Rename to...
        (rewrite_enter_block): ... this, place after called functions.  Test
        interesting_blocks, call rewrite_stmt and rewrite_add_phi_arguments.
        (rewrite_finalize_block): Rename to...
        (rewrite_leave_block): ... this, place after called functions.
        (rewrite_update_init_block): Rename to...
        (rewrite_update_enter_block): ... this, place after called functions.
        Test interesting_blocks, call rewrite_update_stmt and 
        rewrite_update_phi_arguments.
        (rewrite_update_fini_block): Rename to...
        (rewrite_leave_block): ... this, place after called functions.
        (rewrite_blocks): Remove last argument, simplify initialization of
        walk_data.
        (mark_def_sites_initialize_block): Rename to...
        (mark_def_sites_block): ... this, call mark_def_sites.
        (mark_def_sites_blocks): Remove argument, simplify initialization of
        walk_data.
        (rewrite_into_ssa): Adjust for interesting_blocks_being a global.
        (update_ssa): Likewise.
        * tree-ssa-dom.c (optimize_stmt): Simplify now that it's not a domwalk
        callback.
        (tree_ssa_dominator_optimize): Simplify initialization of walk_data.
        (dom_opt_initialize_block): Rename to...
        (dom_opt_enter_block): ... this, place after called functions.  Walk
        statements here, inline propagate_to_outgoing_edges.
        (dom_opt_finalize_block): Rename to...
        (dom_opt_leave_block): ... this, place after called functions.
        * tree-ssa-dse.c (dse_optimize_stmt): Simplify now that it's not a
        domwalk callback.
        (dse_enter_block, dse_record_phi): New.
        (dse_record_phis): Delete.
        (dse_finalize_block): Rename to...
        (dse_leave_block): ... this.
        (tree_ssa_dse): Simplify initialization of walk_data.
        * tree-ssa-loop-im.c (determine_invariantness, move_computations):
        Adjust initialization of walk_data.
        * tree-ssa-loop-unswitch.c: Do not include domwalk.h.
        * tree-ssa-loop-phiopt.c (get_non_trapping):
        Adjust initialization of walk_data.
        * tree-ssa-loop-threadedge.c: Do not include domwalk.h.
        * tree-ssa-uncprop.c (uncprop_into_successor_phis): Simplify now that
        it's not a domwalk callback.
        (uncprop_initialize_block): Rename to...
        (dse_enter_block): ... this, call uncprop_into_successor_phis.
        (dse_finalize_block): Rename to...
        (dse_leave_block): ... this.
        (tree_ssa_uncprop): Simplify initialization of walk_data.
        * Makefile.in: Adjust dependencies.

2009-06-27  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (casesi): Fix test for Thumb1.
        (thumb1_casesi_internal_pic): Likewise.
        (thumb1_casesi_dispatch): Likewise.

2009-06-26  Daniel Gutson  <dgutson@codesourcery.com>

        * config/arm/arm-cores.def: Added core cortex-m0.
        * config/arm/arm-tune.md: Regenerated.
        * doc/invoke.texi: Added entry for cpu ARM Cortex-M0.

2009-06-26  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.opt (mfar): Remove -mfar as it doesn't do anything.

        * config/mep/mep.c (mep_bundle_insns): Account for the fact that
        the scheduler doesn't tag jump insns.

2009-06-26  H.J. Lu  <hongjiu.lu@intel.com>

        * c-decl.c (merge_decls): Re-indent.

2009-06-26  Janis Johnson  <janis187@us.ibm.com>

        PR c/39902
        * tree.c (real_zerop, real_onep, real_twop, real_minus_onep):
        Special-case decimal float constants.

2009-06-26  Richard Henderson  <rth@redhat.com>

        * function.h (struct function): Add cannot_be_copied_reason,
        and cannot_be_copied_set.
        * tree-inline.c (has_label_address_in_static_1): Rename from
        inline_forbidden_p_2; don't set inline_forbidden_reason here.
        (cannot_copy_type_1): Rename from inline_forbidden_p_op; likewise
        don't set inline_forbidden_reason.
        (copy_forbidden): New function, split out of inline_forbidden_p.
        (inline_forbidden_p_stmt): Don't check for nonlocal labels here.
        (inline_forbidden_p): Use copy_forbidden.
        (tree_versionable_function_p): Likewise.
        (inlinable_function_p): Merge into tree_inlinable_function_p.
        (tree_function_versioning): Remap cfun->nonlocal_goto_save_area.
        * ipa-cp.c (ipcp_versionable_function_p): New function.
        (ipcp_cloning_candidate_p): Use it.
        (ipcp_node_modifiable_p): Likewise.

2009-06-26  Olatunji Ruwase  <tjruwase@google.com>

        * builtins.c (expand_builtin_alloca): Handle builtin alloca
        that is marked not to be inlined. Remove flag_mudflap use.
        * tree-mudflap.c: Rename mf_xform_derefs to mf_xfrom_statements.
        (mf_xform_statements): Mark builtin alloca calls as un-inlineable.

2009-06-26  Steve Ellcey  <sje@cup.hp.com>

        PR bootstrap/40338
        * config/pa/t-pa-hpux10 (TARGET_LIBGCC2_CFLAGS): Add -frandom-seed.
        * config/pa/t-pa-hpux11 (TARGET_LIBGCC2_CFLAGS): Ditto.

2009-06-26  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/mingw-tls.c (__mingwthr_key_dtor): Remove for none
        shared libgcc.
        (__mingwthr_remove_key_dtor): Likewise.

2009-06-26  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (do_ds_constraint): Simplify escape handling.

2009-06-26  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/40525
        * ifcvt.c (dead_or_predicable): If predicating MERGE_BB fails,
        try the non-cond_exec path also.

2009-06-25  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/40468
        * pa.c (branch_to_delay_slot_p, branch_needs_nop_p): New functions.
        (output_cbranch): Use new functions.
        (output_lbranch, output_bb, output_bvb, output_dbra, output_movb):
        Likewise.

2009-06-25  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Pat Haugen  <pthaugen@us.ibm.com>
            Revital Eres <ERES@il.ibm.com>

        * config/rs6000/rs6000.c (print_operand): Correct lossage message
        for %c error.  Add %x support to print VSX registers as a unified
        register set, instead of separate float and altivec registers.
        Switch to use VECTOR_MEM_ALTIVEC_P instead of TARGET_ALTIVEC for
        %y case, and add support for VSX pre-modify addresses.
        (output_toc): Add assert for CONST containing an integer constant
        in the PLUS case.
        (rs6000_adjust_cost): Add POWER7 support.
        (insn_must_be_first_in_group): Ditto.
        (insn_must_be_last_in_group): Ditto.
        (rs6000_emit_popcount): Ditto.
        (rs6000_vector_mode_supported_p): Ditto.

        * config/rs6000/rs6000-protos.h (rs6000_secondary_reload_class):
        Change some of the functions called by macros to being called
        through a pointer, so debug functions can be inserted if
        -mdebug=addr or -mdebug=cost. 
        (rs6000_preferred_reload_class_ptr): Ditto.
        (rs6000_secondary_reload_class_ptr): Ditto.
        (rs6000_secondary_memory_needed_ptr): Ditto.
        (rs6000_cannot_change_mode_class_ptr): Ditto.
        (rs6000_secondary_reload_inner): Ditto.
        (rs6000_legitimize_reload_address): Ditto.
        (rs6000_legitimize_reload_address_ptr): Ditto.
        (rs6000_mode_dependent_address): Ditto.
        (rs6000_mode_dependent_address_ptr): Ditto.

        * config/rs6000/rs6000.c (reg_offset_addressing_ok_p): New
        function to return true if the mode allows reg + integer
        addresses.
        (virtual_stack_registers_memory_p): New function to return true if
        the address refers to a virtual stack register.
        (rs6000_legitimate_offset_address_p): Move code to say whether a
        mode supports reg+int addressing to reg_offset_addressing_ok_p and
        call it.
        (rs6000_legitimate_address_p): Add checks for modes that only can
        do reg+reg addressing.  Start adding VSX support.
        (rs6000_legitimize_reload_address): Ditto.
        (rs6000_legitimize_address): Ditto.
        (rs6000_debug_legitimate_address_p): New debug functions for
        -mdebug=addr and -mdebug=cost.
        (rs6000_debug_rtx_costs): Ditto.
        (rs6000_debug_address_costs): Ditto.
        (rs6000_debug_adjust_cost): Ditto.
        (rs6000_debug_legitimize_address): Ditto.
        (rs6000_legitimize_reload_address_ptr): Point to call normal
        function or debug function.  Make functions called via pointer
        static.
        (rs6000_mode_dependent_address_ptr): Ditto.
        (rs6000_secondary_reload_class_ptr): Ditto.
        (rs6000_hard_regno_mode_ok): Add preliminary VSX support.
        (rs6000_emit_move): Add -mdebug=addr support.  Change an abort
        into a friendlier error.
        (rs6000_init_builtins): Add initial VSX support.
        (rs6000_adjust_cost): Fix some spacing issues.

        * config/rs6000/rs6000.h (enum reg_class): Add VSX_REGS.
        (REG_CLASS_NAMES): Ditto.
        (REG_CLASS_CONTENTS): Ditto.
        (PREFERRED_RELOAD_CLASS): Move from a macro to calling through a
        pointer, to add -mdebug=addr support.
        (CANNOT_CHANGE_MODE_CLASS): Ditto.
        (SECONDARY_RELOAD_CLASS): Call through a pointer to add
        -mdebug=addr support.
        (LEGITIMIZE_RELOAD_ADDRESS): Ditto.
        (GO_IF_MODE_DEPENDENT_ADDRESS): Ditto.
        (enum rs6000_builtins): Add RS6000_BUILTIN_BSWAP_HI.

        * config/rs6000/rs6000.md (bswaphi*): Add support for swapping
        16-bit values.
        (bswapsi*): Set attribute types for load/store.  Add combiner
        patterns to eliminate zero extend on 64-bit.
        (bswapdi*): Add support for swapping 64-bit values.  Use ldbrx and
        stdbrx if the hardware supports those instructions.

2009-06-25  Ian Lance Taylor  <iant@google.com>

        * doc/invoke.texi (Option Summary): Mention -static-libstdc++.
        (Link Options): Document -static-libstdc++.

2009-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/38731
        * config/rs6000/rs6000.c (LOCAL_ALIGNMENT): Redefine to just use
        DATA_ALIGNMENT instead.

2009-06-25  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Disambiguate
        indirect references against the callused/escaped solutions.
        (call_may_clobber_ref_p_1): Likewise.

2009-06-25  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40493
        * tree-sra.c (sra_modify_expr): Correct BIT_FIELD_REF argument numbers.
        (enum unscalarized_data_handling): New type.
        (handle_unscalarized_data_in_subtree): Return what has been done.
        (load_assign_lhs_subreplacements): Handle left flushes differently.
        (sra_modify_assign): Use unscalarized_data_handling, simplified
        condition determining whether to remove the statement.

2009-06-25  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/plugins.texi (Building GCC plugins): Correct typo in Makefile
        excerpt - @ should be doubled for texinfo.

2009-06-24  Ian Lance Taylor  <iant@google.com>

        * config/arc/arc.c: Include "df.h".
        (arc_attribute_table): Make static.  Move higher in file.
        (arc_address_cost): Call SMALL_INT on INTVAL, not rtx.
        (output_shift): Initialize n later to avoid warning.
        * config/arm/arm.c (arm_attribute_table): Make static.  Move
        higher in file.
        * config/avr/avr.c (avr_attribute_table): Make static.  Move
        higher in file.
        (reg_class_tab): Change array type from int to enum reg_class.
        (avr_jump_mode): Change GET_MODE to GET_CODE when checking for
        LABEL_REF.
        (out_tsthi, ashlhi3_out): Don't use AS2 with "or" or "and".
        (lshrhi3_out): Likewise.
        (class_likely_spilled_p): Change return type to bool.
        (avr_rtx_costs): Use local code variable with enum type.
        * config/avr/avr.md (movmemhi): Use add_reg_note.
        (andhi3, andsi3): Don't use AS2 with "and".
        (iorhi3, iorsi3): Don't use AS2 with "or".
        * config/avr/avr-protos.h (class_likely_spilled_p): Update declaration.
        * config/crx/crx.c: Include "df.h".
        (crx_attribute_table): Make static.
        * config/m32r/m32r.c: Include "df.h".
        (m32r_attribute_table): Make static.  Move higher in file.
        (pop): Use add_reg_note.
        (block_move_call): Change 0 to LCT_NORMAL in function call.
        * config/m32r/m32r.md (movsi_insn): Remove unused local value.
        * config/m32r/m32r.h (INITIALIZE_TRAMPOLINE): Likewise.
        * config/m32r/m32r-protos.h (m32r_compute_function_type): Always
        declare, not just when TREE_CODE is defined.
        * config/m68hc11/m68hc11.c: Include "expr.h".
        (m68hc11_attribute_table): Make static.  Move higher in file.
        (m68hc11_small_indexed_indirect_p): Change 0 to VOIDmode in
        function call.
        (m68hc11_register_indirect_p): Likewise.
        (m68hc11_function_arg_padding): Change return type to enum
        direction.
        (emit_move_after_reload): Use add_reg_note.
        (m68hc11_emit_logical): Change code parameter to enum rtx_code.
        (m68hc11_split_logical): Likewise.
        (m68hc11_rtx_costs): Add local code_and outer_code variables with
        enum type.
        * config/m68hc11/predicates.md (reg_or_some_mem_operand): Change 0
        to VOIDmode in function call.
        * config/m68hc11/m68hc11-protos.h: Don't check TREE_CODE to see if
        tree is defined.
        (m68hc11_split_logical): Update declaration.
        (m68hc11_function_arg_padding): Update declaration.
        * config/mcore/mcore.c (regno_reg_class): Change form array of int
        to array of enum reg_class.
        (mcore_attribute_table): Make static.  Move higher in file.
        (mcore_rtx_costs): Add cast to enum type.
        * config/mcore/mcore.h (regno_reg_class): Update declaration.
        (GO_IF_LEGITIMATE_INDEX): Add cast to avoid warning.
        * config/sh/sh.c (sh_attribute_table): Make static.  Move higher
        in file.
        * config/sh/predicates.md (trapping_target_operand): Rename and to
        and_expr.
        * config/sparc/sparc.c (sparc_attribute_table): Make static.  Move
        higher in file.
        * config/spu/spu.c (spu_attribute_table): Make static.  Move
        higher in file.
        * config/v850/v850.c (v850_attribute_table): Make static.  Move
        higher in file.
        (v850_rtx_costs): Use local code with enum type.
        (expand_epilogue): Add cast.
        * config/v850/v850-c.c (ghs_pragma_section): Initialize repeat.

2009-06-23  Takashi YOSHII  <yoshii.takashi@renesas.com>

        PR target/40515
        * doc/invoke.texi (SH Options): Document -m2a, -m2a-single,
        -m2a-single-only and -m2a-nofpu.
        * config/sh/sh.opt: Document m2a generates FPU code.  

2009-06-24  Anatoly Sokolov  <aesok@post.ru>

        * defaults.h (CAN_ELIMINATE): Provide default.
        * doc/tm.texi (CAN_ELIMINATE): Revise documentation.
        * config/alpha/alpha.h (CAN_ELIMINATE): Delete.
        * config/m32c/m32c.h (CAN_ELIMINATE): Delete.
        * config/spu/spu.h (CAN_ELIMINATE): Delete.
        * config/xtensa/xtensa.h (CAN_ELIMINATE): Delete.
        * config/moxie/moxie.h (CAN_ELIMINATE): Delete.
        * config/cris/cris.h (CAN_ELIMINATE): Delete.
        * config/mn10300/mn10300.h (CAN_ELIMINATE): Delete.
        * config/pa/pa64-linux.h (CAN_ELIMINATE): Delete.
        * config/mmix/mmix.h (CAN_ELIMINATE): Delete.

2009-06-24  DJ Delorie  <dj@redhat.com>

        * mep-ext-cop.cpu: Fix copyright notice.
        * mep-default: Fix copyright notice.
        * mep-core: Fix copyright notice.
        * mep: Fix copyright notice.
        * mep-ivc2: Fix copyright notice.
        * mep-c5: Fix copyright notice.

2009-06-24  Denis Chertykov  <chertykov@gmail.com>

        * doc/contrib.texi (Contributors): 

2009-06-24  Andreas Krebbel  <krebbel1@de.ibm.com>
        
        PR middle-end/40501
        * tree-ssa-math-opts.c (execute_optimize_bswap): Convert the bswap
        src and dst operands if necessary.

2009-06-23  DJ Delorie  <dj@redhat.com>

        Add MeP port.
        * config.gcc: Add mep support.
        * recog.c: Resurrect validate_replace_rtx_subexp().
        * recog.h: Likewise.
        * config/mep/: Add new port:
        * config/mep/constraints.md: New file.
        * config/mep/default.h: New file.
        * config/mep/intrinsics.h: New file.
        * config/mep/intrinsics.md: New file.
        * config/mep/ivc2-template.h: New file.
        * config/mep/mep-c5.cpu: New file.
        * config/mep/mep-core.cpu: New file.
        * config/mep/mep-default.cpu: New file.
        * config/mep/mep-ext-cop.cpu: New file.
        * config/mep/mep-intrin.h: New file.
        * config/mep/mep-ivc2.cpu: New file.
        * config/mep/mep-lib1.asm: New file.
        * config/mep/mep-lib2.c: New file.
        * config/mep/mep-pragma.c: New file.
        * config/mep/mep-protos.h: New file.
        * config/mep/mep-tramp.c: New file.
        * config/mep/mep.c: New file.
        * config/mep/mep.cpu: New file.
        * config/mep/mep.h: New file.
        * config/mep/mep.md: New file.
        * config/mep/mep.opt: New file.
        * config/mep/predicates.md: New file.
        * config/mep/t-mep: New file.

2009-06-23  Ian Lance Taylor  <iant@google.com>

        * configure.ac: Invoke AC_PROG_CXX.  Separate C specific warnings
        from loose_warn into c_loose_warn and from strict_warn into
        c_strict_warn.  Set and substitute warn_cxxflags.  Check for
        --enable-build-with-cxx.  Set and substitute
        ENABLE_BUILD_WITH_CXX.  Set and substitute HOST_LIBS.
        * Makefile.in (CXXFLAGS): New variable.
        (C_LOOSE_WARN, C_STRICT_WARN): New variables.
        (GCC_WARN_CFLAGS): Add $(C_LOOSE_WARN).  Add $(C_STRICT_WARN) if
        the default is the same as $(STRICT_WARN).
        (GCC_WARN_CXXFLAGS, WARN_CXXFLAGS): New variables.
        (CXX): New variable.
        (COMPILER): New value if ENABLE_BUILD_WITH_CXX.
        (COMPILER_FLAGS, LINKER, LINKER_FLAGS): Likewise.
        (ALL_COMPILERFLAGS, ALL_LINKERFLAGS): Likewise.
        (HOST_LIBS): New variable.
        (GCC_CFLAGS): Add $(C_LOOSE_WARN).
        (ALL_CXXFLAGS): New variable.
        (LIBS, BACKENDLIBS): Add $(HOST_LIBS).
        * doc/install.texi (Configuration): Document
        --enable-build-with-cxx, --with-stage1-ldflags,
        --with-stage1-libs, --with-boot-ldflags, --with-boot-libs.
        * configure: Rebuild.

2009-06-24  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/arm.c (arm_override_options): Fix braces and formatting
        from previous commit.

2009-06-23  Ian Lance Taylor  <iant@google.com>

        * Makefile.in ($(out_object_file)): Depend upon $(DF_H).

2009-06-23  Ian Lance Taylor  <iant@google.com>

        * reload.c (alternative_allows_const_pool_ref): Mark mem parameter
        with ATTRIBUTE_UNUSED.

2009-06-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Pat Haugen  <pthaugen@us.ibm.com>