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

2013-03-26  Walter Lee  <walt@tilera.com>

        Backport from mainline:
        2013-03-25  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx-builtins.h (enum tilegx_builtin): Add
        TILEGX_INSN_SHUFFLEBYTES1.
        * config/tilegx/tilegx.c (tilegx_builtin_info): Add entry for
        shufflebytes1.
        (tilegx_builtins): Ditto.
        * config/tilegx/tilegx.md (insn_shufflebytes1): New pattern.

2013-03-26  Walter Lee  <walt@tilera.com>

        Backport from mainline:
        2013-03-25  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (expand_set_cint64_one_inst): Inline
        tests for constraint J, K, N, P.

2013-03-26  Walter Lee  <walt@tilera.com>

        Backport from mainline:
        2013-03-25  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (tilegx_asm_preferred_eh_data_format):
        Use indirect/pcrel encoding.
        * config/tilepro/tilepro.c (tilepro_asm_preferred_eh_data_format):
        Ditto.

2013-03-25  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline:
        2013-03-13  Oleg Endo  <olegendo@gcc.gnu.org>
        2013-03-14  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/49880
        * config/sh/sh.opt (FPU_SINGLE_ONLY): New mask.
        (musermode): Convert to Var(TARGET_USERMODE).
        * config/sh/sh.h (SELECT_SH2A_SINGLE_ONLY, SELECT_SH4_SINGLE_ONLY,
        MASK_ARCH): Add MASK_FPU_SINGLE_ONLY.
        * config/sh/sh.c (sh_option_override): Use
        TARGET_FPU_DOUBLE || TARGET_FPU_SINGLE_ONLY for call-fp case.
        * config/sh/sh.md (udivsi3_i1, divsi3_i1): Remove ! TARGET_SH4
        condition.
        (udivsi3_i4, divsi3_i4): Use TARGET_FPU_DOUBLE condition instead of
        TARGET_SH4.
        (udivsi3_i4_single, divsi3_i4_single): Use
        TARGET_FPU_SINGLE_ONLY || TARGET_FPU_DOUBLE instead of TARGET_HARD_SH4.
        * config/sh/linux.h (TARGET_DEFAULT): Remove MASK_USERMODE.
        (SUBTARGET_OVERRIDE_OPTIONS): Set TARGET_USERMODE as default.
        * config/sh/netbsd-elf.h (TARGET_DEFAULT): Remove MASK_USERMODE.
        (SUBTARGET_OVERRIDE_OPTIONS): New.

2013-03-25  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline:
        2012-04-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-sh (MULTILIB_MATCHES): Match m2a-single-only
        to m2a-single instead of m2e.

2013-03-22  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/56560
        * config/i386/i386.h (ix86_args): Define only if USED_FOR_TARGET
        isn't defined.

2013-03-22  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/56560
        * config/i386/i386.c (init_cumulative_args): Also set
        cum->callee_return_avx256_p.
        (ix86_function_arg): Set cum->callee_pass_avx256_p.  Set
        cfun->machine->callee_pass_avx256_p only when MODE == VOIDmode.

        * config/i386/i386.h (ix86_args): Add callee_pass_avx256_p and
        callee_return_avx256_p.

2013-03-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        Backport from mainline:
        2012-12-04  Ian Lance Taylor  <iant@google.com>

        * godump.c (find_dummy_types): Output a dummy type if we couldn't
        output the real type.

2013-03-20  Jack Howarth  <howarth@bromo.med.uc.edu>

        PR bootstrap/56258
        * doc/generic.texi (POINTER_PLUS_EXPR): Use @item instead of @itemx.
        (PLUS_EXPR): Likewise.
        * doc/cppopts.texi (--help): Likewise.
        * doc/invoke.texi (-fenable-@var{kind}-@var{pass}): Likewise.
        (-fdump-rtl-cprop_hardreg): Likewise.
        (-fdump-rtl-csa): Likewise.
        (-fdump-rtl-dce): Likewise.
        (-fdump-rtl-dbr): Likewise.
        (-fdump-rtl-into_cfglayout): Likewise.
        (-fdump-rtl-outof_cfglayout): Likewise.

2013-03-18  Richard Earnshaw  <rearnsha@arm.com>

        PR target/56470
        * config/arm/arm.c (shift_op): Validate RTL pattern on the fly.
        (arm_print_operand, case 'S'): Don't use shift_operator to validate
        the RTL.

2013-03-14  Seth LaForge  <sethml@google.com>

        PR target/56351
        Backport from mainline
        2012-10-22  Julian Brown  <julian@codesourcery.com>

        * config/arm/arm.h (CANNOT_CHANGE_MODE_CLASS): Avoid subreg'ing
        VFP D registers in big-endian mode.

2013-03-08  Joey Ye  <joey.ye@arm.com>

        Backport from mainline
        2013-03-06  Joey Ye  <joey.ye@arm.com>

        PR lto/50293
        * gcc.c (convert_white_space): New function.
        (main): Handles white space in function name.

2013-03-06  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline
        2013-03-06  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/56529
        * config/sh/sh.c (sh_option_override): Check for TARGET_DYNSHIFT
        instead of TARGET_SH2 for call-table case.  Do not set sh_div_strategy
        to SH_DIV_CALL_TABLE for TARGET_SH2.
        * config.gcc (sh_multilibs): Add m2 and m2a to sh*-*-linux* multilib
        list.
        * doc/invoke.texi (SH options): Use table for mdiv= option.  Document
        mdiv= call-div1, call-fp, call-table options.

2013-03-06  Sebastian Huber <sebastian.huber@embedded-brains.de>

        * config.gcc (arm*-*-rtemself*): New.
        (arm*-*-rtems*): Removed.
        (arm*-*-eabi* | arm*-*-symbianelf* | arm*-*-rtemseabi*): Rename
        "arm*-*-rtemseabi*" to "arm*-*-rtems*".

2013-03-01  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-12-12  Zdenek Dvorak  <ook@ucw.cz>

        PR tree-optimization/55481
        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Fall
        back to general rewriting if we cannot leave an original biv
        definition alone.

2013-03-01  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-04-10  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/52888
        * gimple-low.c (gimple_check_call_args): Properly account for
        compatible aggregate types.

2013-02-26  Nick Clifton  <nickc@redhat.com>

        PR target/56453
        Import this patch from the mainline:

        2012-08-17  Nick Clifton  <nickc@redhat.com>

        * config/fr30/fr30.md (cbranchsi4): Remove mode from comparison.
        (branch_true): Likewise.
        (branch_false): Likewise.

2013-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/56443
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): For
        overaligned types, pass TYPE_UNSIGNED (scalar_type) as second argument
        to type_for_mode langhook.

2013-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/56258
        * doc/invoke.texi (-fdump-rtl-pro_and_epilogue): Use @item
        instead of @itemx.

2013-02-19  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2013-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/56350
        * tree-vect-loop.c (vectorizable_reduction): If orig_stmt, return false
        if haven't found reduction or nested cycle operand, rather than
        asserting we must find it.

        PR tree-optimization/56381
        * tree-ssa-pre.c (create_expression_by_pieces): Fix up last argument
        to fold_build3.

        2013-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/56250
        * fold-const.c (extract_muldiv_1) <case NEGATE_EXPR>: Don't optimize
        if type is unsigned and code isn't MULT_EXPR.

        2013-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/56217
        * omp-low.c (use_pointer_for_field): Return false if
        lower_send_shared_vars doesn't generate any copy-out code.

        2012-11-27  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/55110
        * tree-vect-loop.c (vectorizable_reduction): Don't assert
        that STMT_VINFO_RELATED_STMT of orig_stmt is stmt.

2013-02-18  Richard Biener  <rguenther@suse.de>

        Revert
        2013-02-04  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-07-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53844
        * tree-ssa-dse.c (dse_possible_dead_store_p): Properly handle
        the loop virtual PHI.

2013-02-13  David S. Miller  <davem@davemloft.net>

        * expmed.c (expand_shift_1): Only strip scalar integer subregs.

2013-02-11  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-02-11  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/56275
        * simplify-rtx.c (avoid_constant_pool_reference): Check that
        offset is non-negative and less than cmode size before
        calling simplify_subreg.

2013-02-09  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-02-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (FMAMODEM): New mode iterator.
        (fma<mode>4, fms<mode>4, fnma<mode>4, fnms<mode>4): Use FMAMODEM
        mode iterator. Do not use TARGET_SSE_MATH in insn constraint.

        2013-02-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/gnu-user.h (TARGET_CAN_SPLIT_STACK): Define only
        when HAVE_GAS_CFI_PERSONALITY_DIRECTIVE is set.
        * config/i386/gnu-user64.h (TARGET_CAN_SPLIT_STACK): Ditto.

2013-02-08  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from mainline
        2013-02-08  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/56043
        * config/rs6000/rs6000.c (rs6000_builtin_vectorized_libmass):
        If there is no implicit builtin declaration, just return NULL.

2013-02-08  David Edelsohn  <dje.gcc@gmail.com>
            Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from mainline
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Clear
        MASK_VSX from set_masks if OS_MISSING_ALTIVEC.

2013-02-07  David S. Miller  <davem@davemloft.net>

        * dwarf2out.c (based_loc_descr): Perform leaf register remapping
        on 'reg'.
        * var-tracking.c (vt_add_function_parameter): Test the presence of
        HAVE_window_save properly and do not remap argument registers when
        we have a leaf function.

2013-02-07  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-02-07  Uros Bizjak  <ubizjak@gmail.com>

        PR bootstrap/56227
        * ggc-page.c (ggc_print_statistics): Use HOST_LONG_LONG_FORMAT
        instead of "ll".
        * config/i386/i386.c (ix86_print_operand): Ditto.

2013-02-07  Alan Modra  <amodra@gmail.com>

        PR target/53040
        * config/rs6000/rs6000.c (rs6000_savres_strategy): When using
        static chain, set REST_INLINE_FPRS too.

2013-02-06  David Edelsohn  <dje.gcc@gmail.com>

        Backport from mainline
        2013-01-25  Michael Haubenwallner  <michael.haubenwallner@salomon.at>

        * configure.ac (gcc_cv_ld_static_dynamic): Define for AIX native ld.
        * configure: Regenerate.

2013-02-05  David Edelsohn  <dje.gcc@gmail.com>

        Backport from mainline
        2013-02-03  David Edelsohn  <dje.gcc@gmail.com>
                    Andrew Dixie  <andrewd@gentrack.com>

        * collect2.c (GCC_CHECK_HDR): Do not scan objects with F_LOADONLY
        flag set.

2013-02-05  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-12-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/55107
        * tree-ssa-pre.c (struct pre_stats): Remove constified field.
        (bitmap_set_replace_value): Add gcc_unreachable.
        (do_regular_insertion): Re-write all_same handling.  Insert
        an assignment instead of a PHI in this case.
        (execute_pre): Do not record constified events.

2013-02-05  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/54767
        * tree-vrp.c (vrp_visit_phi_node): For PHI arguments coming via
        backedges drop all symbolical range information.
        (execute_vrp): Compute backedges.

2013-02-04  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-01-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44061
        * tree-vrp.c (extract_range_basic): Compute zero as
        value-range for __builtin_constant_p of function parameters.

        2013-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/55890
        * tree-ssa-ccp.c (evaluate_stmt): Use gimple_call_builtin_class_p.

2013-02-04  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-07-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53844
        * tree-ssa-dse.c (dse_possible_dead_store_p): Properly handle
        the loop virtual PHI.

        2012-12-13  Richard Biener  <rguenther@suse.de>

        PR lto/55660
        * tree-streamer.c (record_common_node): Check that we are not
        recursively pre-loading nodes we want to skip.  Handle
        char_type_node appearing as part of va_list_type_node.

2013-02-04  Richard Biener  <rguenther@suse.de>

        PR middle-end/55890
        * gimple.h (gimple_call_builtin_class_p): New function.
        * gimple.c (validate_call): New function.
        (gimple_call_builtin_class_p): Likewise.
        * tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
        Use gimple_call_builtin_class_p.
        (find_func_clobbers): Likewise.
        * tree-ssa-strlen.c (adjust_last_stmt): Likewise.
        (strlen_optimize_stmt): Likewise.

2013-02-01  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2013-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/56125
        * tree-ssa-math-opts.c (gimple_expand_builtin_pow): Don't optimize
        pow(x,c) into sqrt(x) * powi(x, n/2) or
        1.0 / (sqrt(x) * powi(x, abs(n/2))) if c is an integer or when
        optimizing for size.
        Don't optimize pow(x,c) into powi(x, n/3) * powi(cbrt(x), n%3) or
        1.0 / (powi(x, abs(n)/3) * powi(cbrt(x), abs(n)%3)) if 2c is an
        integer.

        2013-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/56098
        * tree-ssa-phiopt.c (nt_init_block): Don't call add_or_mark_expr
        for stmts with volatile ops.
        (cond_store_replacement): Don't optimize if assign has volatile ops.
        (cond_if_else_store_replacement_1): Don't optimize if either
        then_assign or else_assign have volatile ops.

        2013-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/49069
        * config/arm/arm.md (cbranchdi4, cstoredi4): Use s_register_operand
        instead of cmpdi_operand for first comparison operand.
        Don't assert that comparison operands aren't both constants.

        2013-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/56051
        * fold-const.c (fold_binary_loc): Don't fold
        X < (cast) (1 << Y) into (X >> Y) != 0 if cast is either
        a narrowing conversion, or widening conversion from signed
        to unsigned.

        2013-01-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/56015
        * expr.c (expand_expr_real_2) <case COMPLEX_EXPR>: Handle
        the case where writing real complex part of target modifies
        op1.

        2013-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/55940
        * function.c (thread_prologue_and_epilogue_insns): Always
        add crtl->drap_reg to set_up_by_prologue.set, even if
        stack_realign_drap is false.

        2013-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/55921
        * tree-complex.c (expand_complex_asm): New function.
        (expand_complex_operations_1): Call it for GIMPLE_ASM.

        2013-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/55838
        * loop-iv.c (iv_number_of_iterations): Call lowpart_subreg on
        iv0.step, iv1.step and step.

        2012-11-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/54046
        * Makefile.in (gimple-low.o): Depend on langhooks.h.
        * gimple-low.c: Include langhooks.c.
        (block_may_fallthru): Handle TARGET_EXPR and ERROR_MARK,
        by default call lang_hooks.block_may_fallthru.
        * langhooks.h (struct lang_hooks): Add block_may_fallthru
        langhook.
        * langhooks-def.h (LANG_HOOKS_BLOCK_MAY_FALLTHRU): Define.
        (LANG_HOOKS_INITIALIZER): Use it.

        2012-11-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/55094
        * builtins.c (expand_builtin_trap): Add REG_ARGS_SIZE note
        on the trap insn for !ACCUMULATE_OUTGOING_ARGS.
        * cfgcleanup.c (outgoing_edges_match): Don't look at debug insns
        on the first old_insns_match_p call.  For !ACCUMULATE_OUTGOING_ARGS
        fail if the last real insn doesn't have REG_ARGS_SIZE note.

        2012-11-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/55236
        * fold-const.c (make_range_step) <case NEGATE_EXPR>: For -fwrapv
        and signed ARG0_TYPE, force low and high to be non-NULL.

        2012-11-13  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/54127
        * cfgrtl.c (force_nonfallthru_and_redirect): When redirecting
        asm goto labels from BB_HEAD (e->dest) to target bb, decrement
        LABEL_NUSES of BB_HEAD (e->dest) and increment LABEL_NUSES of
        BB_HEAD (target) appropriately and adjust JUMP_LABEL and/or
        REG_LABEL_TARGET and REG_LABEL_OPERAND.

2013-02-01  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (make_range_step) <TRUTH_NOT_EXPR>: Bail out if the
        range isn't testing for zero.

2013-01-29  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/56113
        * tree-ssa-structalias.c (equiv_class_lookup): Also return
        the bitmap leader.
        (label_visit): Free duplicate bitmaps and record the leader instead.
        (perform_var_substitution): Adjust.

2013-01-28  Serowk  <serowk@yandex.ru>

        PR target/35294
        * config/arm/arm.c (arm_expand_binop_builtin): Add new parameter.
        Fix mode checks to allow for the passing of constants in the
        second parameter.
        (arm_expand_builtin): Adjust calls to arm_expand_binop_builtin.
        Add entries in the switch statement for builtin iwmmxt vector
        shift and rotate builtins.

2013-01-27  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-01-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/56114
        * config/i386/i386.md (*movabs<mode>_1): Add square brackets around
        operand 0 in movabs insn template for -masm=intel asm alternative.
        (*movabs<mode>_2): Ditto for operand 1.

2013-01-27  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-01-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/56028
        * config/i386/i386.md (*movti_internal_rex64): Change (o,riF)
        alternative to (o,r).
        (*movdi_internal_rex64): Remove (!o,n) alternative.
        (DImode immediate->memory splitter): Remove.
        (DImode immediate->memory peephole2): Remove.
        (movtf): Enable for TARGET_64BIT || TARGET_SSE.
        (*movtf_internal_rex64): Rename from *movtf_internal. Change (!o,F*r)
        alternative to (!o,*r).
        (*movtf_internal_sse): New pattern.
        (*movxf_internal_rex64): New pattern.
        (*movxf_internal): Disable for TARGET_64BIT.
        (*movdf_internal_rex64): Remove (!o,F) alternative.

        2013-01-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movdf_internal_rex64): Disparage alternatives
        involving stack registers slightly.

        2013-01-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/constraints.md (Yf): New constraint.
        * config/i386/i386.md (*movdf_internal_rex64): Use Yf*f instead
        of f constraint to conditionaly disable x87 register preferences.
        (*movdf_internal): Ditto.
        (*movsf_internal): Ditto.

        2012-01-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movti_internal_rex64): Add (o,e) alternative.
        (*movtf_internal_rex64): Add (!o,C) alternative
        (*movxf_internal_rex64): Ditto.
        (*movdf_internal_rex64): Add (?r,C) and (?m,C) alternatives.

2013-01-25  Georg-Johann Lay  <avr@gjlay.de>

        * doc/invoke.texi (AVR Built-in Macros): Document __XMEGA__.

2013-01-24  Martin Jambor  <mjambor@suse.cz>

        Backport from mainline
        2013-01-04  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/55755
        * tree-sra.c (sra_modify_assign): Do not check that an access has no
        children when trying to avoid producing a VIEW_CONVERT_EXPR.

2013-01-21  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-01-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (enabled): Do not disable fma4 for TARGET_FMA.

2013-01-21  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/56023
        * haifa-sched.c (fix_inter_tick): Do not update ticks of instructions,
        dependent on debug instruction.

2013-01-21  Martin Jambor  <mjambor@suse.cz>

        Backport from mainline
        2013-01-17  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimizations/55264
        * cgraph.c (cgraph_create_virtual_clone): Mark clones as non-virtual.
        * cgraph.h (cgraph_only_called_directly_p_or_aliased_p): Return false
        for virtual functions.
        * ipa-inline-transform.c (can_remove_node_now_p_1): Never return true
        for virtual methods.
        * ipa.c (cgraph_remove_unreachable_nodes): Never return true for
        virtual methods before inlining is over.

2013-01-17  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-01-17  Uros Bizjak  <ubizjak@gmail.com>

        PR target/55981
        * config/i386/sync.md (atomic_store<mode>): Generate SWImode
        store through atomic_store<mode>_1.
        (atomic_store<mode>_1): Macroize insn using SWI mode iterator.

2013-01-16  Richard Biener  <rguenther@suse.de>

        PR middle-end/55882
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Correctly
        account for bitpos when computing alignment.

2013-01-14  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2013-01-14 trunk r195169.

        PR target/55974
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Define __FLASH
        etc. to 1 and not to __flash.
        Use LL suffix for __INT24_MAX__ with -mint8.
        Use ULL suffix for __UINT24_MAX__ with -mint8.

2013-01-14  Matthias Klose  <doko@ubuntu.com>

        * doc/invoke.texi: Document -print-multiarch.
        * doc/install.texi: Document --enable-multiarch.
        * doc/fragments.texi: Document MULTILIB_OSDIRNAMES, MULTIARCH_DIRNAME.
        * configure.ac: Add --enable-multiarch option.
        Substitute with_cpu, with_float.
        * configure: Regenerate.
        * Makefile.in (s-mlib): Pass MULTIARCH_DIRNAME to genmultilib.
        enable_multiarch, with_cpu, with_float: New macros.
        if_multiarch: New macro, define in terms of enable_multiarch.
        * genmultilib: Add new argument for the multiarch name.
        * gcc.c (multiarch_dir): Define.
        (for_each_path): Search for multiarch suffixes.
        (driver_handle_option): Handle multiarch option.
        (do_spec_1): Pass -imultiarch if defined.
        (main): Print multiarch.
        (set_multilib_dir): Separate multilib and multiarch names
        from multilib_select.
        (print_multilib_info): Ignore multiarch names in multilib_select.
        * incpath.c (add_standard_paths): Search the multiarch include dirs.
        * cppdefault.h (default_include): Document multiarch in multilib
        member.
        * cppdefault.c: [LOCAL_INCLUDE_DIR, STANDARD_INCLUDE_DIR] Add an
        include directory for multiarch directories.
        * common.opt: New options --print-multiarch and -imultilib.

        * config.gcc <i[34567]86-*-linux* | x86_64-*-linux*> (tmake_file):
        Include i386/t-linux.
        <i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu> (tmake_file):
        Include i386/t-kfreebsd.
        <i[34567]86-*-gnu*> (tmake_file): Include i386/t-gnu.
        * config/i386/t-linux64: Add multiarch names in
        MULTILIB_OSDIRNAMES, define MULTIARCH_DIRNAME.
        * config/i386/t-gnu: New file.
        * config/i386/t-kfreebsd: Likewise.
        * config/i386/t-linux: Likewise.

        * config/sparc/t-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.
        * config/sparc/t-linux: New file; define MULTIARCH_DIRNAME.
        * config.gcc <sparc-*-linux*> (tmake_file): Include sparc/t-linux
        for 32bit non-biarch configurations.

        * config/pa/t-linux: New file; define MULTIARCH_DIRNAME.
        * config.gcc <hppa*64*-*-linux*, hppa*-*-linux*> (tmake_file):
        Include pa/t-linux.

        * config/mips/t-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.

        * config/arm/t-linux-eabi: Define MULTIARCH_DIRNAME for linux target.

        * config/rs6000/t-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.
        * config/rs6000/t-linux: New file; define MULTIARCH_DIRNAME.
        * config/rs6000/t-fprules (SOFT_FLOAT_CPUS): New macro. Add e300c2
        to the list.
        (MULTILIB_MATCHES_FLOAT): Define in terms of SOFT_FLOAT_CPUS.
        * config.gcc <powerpc-*-linux* | powerpc64-*-linux*> (tmake_file):
        Include rs6000/t-linux for 32bit non-biarch configurations.

        * config/s390/t-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.

        * config/m68k/t-linux: Define MULTIARCH_DIRNAME.

        * config/ia64/t-linux: New file; define MULTIARCH_DIRNAME.
        * config.gcc <ia64*-*-linux*> (tmake_file): Include ia64/t-linux.

        * config/alpha/t-linux: New file; define MULTIARCH_DIRNAME.
        * config.gcc <alpha*-*-linux*> (tmake_file): Include alpha/t-linux.

2013-01-14  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vectorizer.h (vect_get_single_scalar_iteraion_cost): Fix typo.
        * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Likewise.
        (vect_estimate_min_profitable_iter): Adjust to above fix.
        * tree-vect-data-refs.c (vect_peeling_hash_get_lowest_cost): Likewise.

2013-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from mainline
        2013-01-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * doc/extend.texi (X86 Built-in Functions): Add whitespace in
        __builtin_ia32_paddb256 and __builtin_ia32_pavgb256
        documentation.  Add missing '__' in front of
        __builtin_ia32_packssdw256.

2013-01-09  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-01-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (*vec_interleave_highv2df): Change mode
        attribute of movddup insn to DF.
        (*vec_interleave_lowv2df): Ditto.
        (vec_dupv2df): Ditto.

2013-01-07  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2013-01-07 trunk r194991, r194992.

        PR target/55897
        * doc/extend.texi (AVR Named Address Spaces): __memx goes into
        .progmemx.data now.

        * config/avr/avr.h (ADDR_SPACE_COUNT): New enum.
        (avr_addrspace_t): Add .section_name field.
        * config/avr/avr.c (progmem_section): Use ADDR_SPACE_COUNT as
        array size.
        (avr_addrspace): Same.  Initialize .section_name.  Remove last
        NULL entry.  Put __memx into .progmemx.data.
        (progmem_section_prefix): Remove.
        (avr_asm_init_sections): No need to initialize progmem_section.
        (avr_asm_named_section): Use avr_addrspace[].section_name to get
        section name prefix.
        (avr_asm_select_section): Ditto.  And use get_unnamed_section to
        retrieve the progmem section.
        * avr-c.c (avr_cpu_cpp_builtins): Use ADDR_SPACE_COUNT as loop
        boundary to run over avr_addrspace[].
        (avr_register_target_pragmas): Ditto.

2013-01-07  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2013-01-07 trunk r194978.

        PR target/54461
        * doc/install.texi (Cross-Compiler-Specific Options): Document
        --with-avrlibc.

2013-01-07  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2013-01-07 trunk r194968.

        PR other/55243
        * config/avr/t-avr: Don't automatically rebuild
        $(srcdir)/config/avr/t-multilib
        $(srcdir)/config/avr/avr-tables.opt
        (avr-mcus): New phony target to build them on request.
        (s-avr-mlib): Remove.
        * avr/avr-mcus.def: Adjust comments.

2013-01-07  Terry Guo  <terry.guo@arm.com>

        Backport from mainline
        2012-12-19  Terry Guo  <terry.guo@arm.com>

        * config/arm/arm.c (thumb_find_work_register): Check argument
        register number based on current PCS.

2013-01-06  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2013-01-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/55712
        * config/i386/i386-c.c (ix86_target_macros_internal): Depending on
        selected code model, define __code_mode_small__, __code_model_medium__,
        __code_model_large__, __code_model_32__ or __code_model_kernel__.
        * config/i386/cpuid.h (__cpuid, __cpuid_count) [__i386__]: Prefix
        xchg temporary register with %k.  Declare temporary register as
        early clobbered.
        [__x86_64__]: For medium and large code models, preserve %rbx register.

2013-01-03  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_expand_move): Always assign to op1
        after eliminating TLS symbols.

2013-01-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/53789
        * config/pa/pa.md (movsi): Revert previous change.
        * config/pa/pa.c (pa_legitimate_constant_p): Reject all TLS symbol
        references.

2013-01-02  Rainer Emrich  <rainer@emrich-ebersheim.de>

        PR bootstrap/55707
        * graphite-dependences.c (hash_poly_ddr_p): Cast from pointer via
        intptr_t.

2013-01-02  Jason Merrill  <jason@redhat.com>

        PR c++/55804
        * tree.c (build_array_type_1): Revert earlier change.

2012-12-25  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/53789
        * config/pa/pa.md (movsi): Reject expansion of TLS symbol references
        after reload starts.

2012-12-21  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/55355
        * tree-sra.c (type_internals_preclude_sra_p): Also check that
        bit_position is small enough to fit a single HOST_WIDE_INT.

2012-12-21  Matthew Gretton-Dann  <matthew.gretton-dann@linaro.org>

        * config.gcc: Match arm*-*-uclinux*eabi* for EABI uCLinux.

2012-12-18  Matthew Gretton-Dann  <matthew.gretton-dann@linaro.org>

        Backport from mainline
        2012-10-15  Matthias Klose  <doko@ubuntu.com>

        * config.gcc: Match arm*-*-linux-* for ARM Linux/GNU.
        * doc/install.texi: Use arm-*-*linux-* instead of arm-*-*linux-gnueabi.

2012-12-16  Eric Botcazou  <ebotcazou@adacore.com>
            Tomash Brechko  <tomash.brechko@gmail.com>

        PR target/55673
        * config/sparc/sparc.c (sparc_emit_membar_for_model): Fix reversed
        handling of before and after cases.
        * config/sparc/sync.md (atomic_store): Fix pasto.

2012-12-14  Yvan Roux  <yvan.roux@linaro.org>

        * optabs.c (expand_atomic_store): Elide redundant model test.

2012-12-13  Richard Henderson  <rth@redhat.com>

        PR middle-end/55492
        * optabs.c (expand_atomic_load): Emit acquire barrier after the load.

2012-12-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/54121
        * config/sparc/sparc.md (tldo_stb_sp32): Fix pasto.
        (tldo_stb_sp64): Likewise.
        (tldo_sth_sp32): Likewise.
        (tldo_sth_sp64): Likewise.
        (tldo_stw_sp32): Likewise.
        (tldo_stw_sp64): Likewise.
        (tldo_stx_sp64): Likewise.

2012-12-10 Kai Tietz  <ktietz@redhat.com>

        PR target/53912
        * print-tree.c (print_node): Cast from pointer via uintptr_t.

2012-12-07  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-12-06  Uros Bizjak  <ubizjak@gmail.com>
                    H.J. Lu  <hongjiu.lu@intel.com>

        PR target/55597
        * config/i386/i386.c (legitimize_tls_address): Zero-extend x to Pmode,
        before using it as insn or call equivalent.

2012-12-06  Jason Merrill  <jason@redhat.com>

        PR c++/55032
        * tree.c (build_array_type_1): Re-layout if we found it in the
        hash table.

2012-12-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/pa.md: Use "const_int 0" instead of match_test to simplify
        opaque cond in all call insns.

2012-12-03  Eric Botcazou  <ebotcazou@adacore.com>

        * config/ia64/ia64.c (ia64_compute_frame_size): Allocate the scratch
        area if the function allocates dynamic stack space.
        (ia64_initial_elimination_offset): Adjust offsets to above change.

2012-12-03  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-09-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53663
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Conditional
        native encode/interpret translation on VN_WALKREWRITE.

2012-12-03 Kai Tietz  <ktietz@redhat.com>

        PR target/53912
        * ggc-common.c (POINTER_HASH): Cast from pointer via intptr_t.

        PR target/53912
        * tree-dump.c (dump_pointer): Print pointer via HOST_WIDE_INT_PRINT.

        PR target/53912
        * pointer-set.c (hash1): Cast from pointer via uintptr_t.

2012-12-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        Backport from mainline:
        2012-11-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/55195
        * config/pa/pa.md (type): Add sibcall and sh_func_adrs insn types.
        (in_branch_delay): Don't allow sibcall or sh_func_adrs insns.
        (in_nullified_branch_delay): Likewise.
        (in_call_delay): Likewise.
        Define delay for sibcall insns.  Adjust Z3 and Z4 insn reservations for
        new types.  Add opaque cond to mark all calls, sibcalls, dyncalls and
        the $$sh_func_adrs call as variable.  Update type of sibcalls and
        $$sh_func_adrs call.
        * config/pa/pa.c (pa_adjust_insn_length): Revise to return updated
        length instead of adjustment.  Handle negative and undefined call
        adjustments for insn_default_length.  Remove adjustment for millicode
        insn with unfilled delay slot.
        (pa_output_millicode_call): Update for revised millicode length.
        * config/pa/pa.h (ADJUST_INSN_LENGTH): Revise to set LENGTH.

2012-11-29  Kai Tietz  <ktietz@redhat.com>

        PR target/55171
        * prefix.c (lookup_key): Replace xmalloc/xrealloc
        use by XNEWVEC/XRESIZEVEC.

        * i386.c (get_scratch_register_on_entry): Handle
        thiscall-convention.
        (split_stack_prologue_scratch_regno): Likewise.
        (ix86_static_chain): Likewise.
        (x86_output_mi_thunk): Likewise.

2012-11-28  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-11-27  H.J. Lu  <hongjiu.lu@intel.com>
                    Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR lto/54795
        * lto-opts.c (lto_write_options): Also handle
        OPT_SPECIAL_unknown, OPT_SPECIAL_ignore and
        OPT_SPECIAL_program_name.

        PR lto/55474
        * lto-wrapper.c (merge_and_complain): Handle
        OPT_SPECIAL_unknown, OPT_SPECIAL_ignore,
        OPT_SPECIAL_program_name and OPT_SPECIAL_input_file.

2012-11-27  Paolo Bonzini  <pbonzini@redhat.com>

        PR rtl-optimization/55489
        * gcse.c (compute_transp): Precompute a canonical version
        of XEXP (x, 0), and pass it to canon_true_dependence.

2012-11-27  Richard Biener  <rguenther@suse.de>

        PR middle-end/55331
        * gimple-fold.c (gimplify_and_update_call_from_tree): Replace
        stmt with a NOP instead of removing it.

2012-11-26  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2012-10-19  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/54976
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size):
        Robustify against odd inner_mode inputs.

        2012-10-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/54894
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size):
        Handle over-aligned scalar types properly.

        2012-10-02  Richard Guenther  <rguenther@suse.de>

        PR middle-end/54735
        * tree-ssa-pre.c (do_pre): Make sure to update virtual SSA form before
        cleaning up the CFG.

2012-11-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from mainline
        2012-11-20  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.md (movdf_hardfloat32): Add a comment
        explaining the register ordering preferences.

        2012-11-19  Michael Meissner  <meissner@linux.vnet.ibm.com>
        * config/rs6000/rs6000.md (movdf_hardfloat32): Reorder move
        constraints so that the traditional floating point loads, stores,
        and moves are done first, then the VSX loads, stores, and moves,
        and finally the GPR loads, stores, and moves so that reload
        chooses FPRs over GPRs, and uses the traditional load/store
        instructions which provide an offset.
        (movdf_hardfloat64): Likewise.

2012-11-19  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-11-13  Eric Botcazou  <ebotcazou@adacore.com>
                    H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/55142
        * config/i386/i386.c (legitimize_pic_address): Properly handle
        REG + CONST.
        (ix86_print_operand_address): Set code to 'k' when forcing
        addr32 prefix.  For x32, zero-extend negative displacement if
        it < -16*1024*1024.

2012-11-12  Eric Botcazou  <ebotcazou@adacore.com>

        * common.opt (fvar-tracking-uninit): Document.
        * toplev.c (process_options): Fix handling of flag_var_tracking_uninit.
        * config/darwin.c (darwin_override_options): Likewise.

2012-11-11  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h (AS_NIAGARA3_FLAG): Tweak.
        * config/sparc/sol2.h (TARGET_CPU_niagara4 support): Fix pasto.

2012-11-09  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/install.texi (sparc64-x-solaris2): Mention MPC as well.

2012-11-09  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (release_scratch_register_on_entry): Also adjust
        sp_offset manually.

2012-11-07  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-11-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_init_machine_status): Do not
        explicitly clear tls_descriptor_call_expanded_p again.

        2012-11-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md
        (<avx_avx2>_maskstore<ssemodesuffix><avxsizesuffix>): Mark operand 0
        as read and written by the instruction.

        2012-11-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (TARGET_INSTANTIATE_DECLS): New define.
        (ix86_instantiate_decls): New function.
        (ix86_expand_builtin) <case IX86_BUILTIN_LDMXCSR>: Use SLOT_TEMP
        stack slot instead of SLOT_VIRTUAL.
        <case IX86_BUILTIN_STMXCSR>: Ditto.
        (assign_386_stack_local): Do not assert when virtual slot is valid.
        * config/i386/i386.h (enum ix86_stack_slot): Remove SLOT_VIRTUAL.
        * config/i386/i386.md (truncdfsf2): Do not use SLOT_VIRTUAL stack slot.
        (truncxf<mode>2): Ditto.
        (floatunssi<mode>2): Ditto.
        (isinf<mode>2): Ditto.
        * config/i386/sync.md (atomic_load<mode>): Ditto.
        (atomic_store<mode>): Ditto.

2012-11-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/55219
        * fold-const.c (fold_binary_op_with_conditional_arg): Do not fold if
        the argument is itself a conditional expression.

2012-11-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (print_reg): Replace REX_INT_REG_P with
        REX_INT_REGNO_P.

2012-11-05  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/54986
        * gimple-fold.c (canonicalize_constructor_val): Strip again all no-op
        conversions on entry but add them back on exit if needed.

2012-11-05  Richard Sandiford  <rdsandiford@googlemail.com>

        PR target/55204
        * config/i386/i386.c (ix86_address_subreg_operand): Remove stack
        pointer check.
        (print_reg): Use true_regnum rather than REGNO.
        (ix86_print_operand_address): Remove SUBREG handling.

2012-11-05  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2012-10-24  Jakub Jelinek  <jakub@redhat.com>

        PR debug/54828
        * gimple.h (is_gimple_sizepos): New inline function.
        * gimplify.c (gimplify_one_sizepos): Use it.  Remove useless
        final assignment to expr variable.
        * tree.c (RETURN_TRUE_IF_VAR): Return true also if
        !TYPE_SIZES_GIMPLIFIED (type) and _t is going to be gimplified
        into a local temporary.

        2012-10-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/54877
        * tree-vect-loop.c (vect_is_simple_reduction_1): For MINUS_EXPR
        use make_ssa_name instead of copy_ssa_name.

2012-11-03  Peter Bergner  <bergner@vnet.ibm.com>

        Backport from mainline
        2012-10-31  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53708
        * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Preserve
        user-supplied alignment when used with an explicit section name.

2012-11-02  Jeff Law  <law@redhat.com>

        PR tree-optimization/54985
        * tree-ssa-threadedge.c (cond_arg_set_in_bb): New function extracted
        from thread_across_edge.
        (thread_across_edge): Use it in all cases where we might thread
        across a back edge.

2012-10-31  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (ix86_expand_prologue): Emit frame info for the
        special register pushes before frame probing and allocation.

2012-10-31  Ralf Corsépius  <ralf.corsepius@rtems.org>,
            Joel Sherrill  <joel.sherrill@oarcorp.com>

        * config/sparc/t-rtems: New (Custom multilibs).
        * config/sparc/t-rtems-64: New (Custom multilibs).
        * config.gcc (sparc64-*-rtems*): Add sparc/t-rtems-64.
        (sparc-*-rtems*): Add sparc/t-rtems.

2012-10-30  Eric Botcazou  <ebotcazou@adacore.com>

        * cse.c (hash_rtx_cb): Replace RTX_UNCHANGING_P with MEM_READONLY_P in
        head comment.
        (hash_rtx): Likewise.

2012-10-29  Terry Guo  <terry.guo@arm.com>

        Backport from mainline
        2012-10-11  Terry Guo  <terry.guo@arm.com>

        * config/arm/arm.c (arm_arch6m): New variable to denote armv6-m
        architecture.
        * config/arm/arm.h (TARGET_HAVE_DMB): The armv6-m also has DMB
        instruction.

2012-10-26  Gunther Nikl  <gnikl@users.sourceforge.net>

        * common/config/m68k/m68k-common.c (m68k_handle_option): Set
        gcc_options fields of opts_set for -m68020-40 and -m68020-60.

2012-10-26  Ralf Corsépius  <ralf.corsepius@rtems.org>

        * config/avr/t-rtems: Revert previous commit.

2012-10-26  Terry Guo  <terry.guo@arm.com>

        Backport from mainline
        2012-10-23  Terry Guo  <terry.guo@arm.com>

        PR target/55019
        * config/arm/arm.c (thumb1_expand_prologue): Don't push high regs with
        live argument regs.

2012-10-26  Ralf Corsépius  <ralf.corsepius@rtems.org>

        * config/avr/rtems.h (TARGET_OS_CPP_BUILTINS): Remove
        __USE_INIT_FINI__.
        * config/avr/t-rtems (LIB1ASMFUNCS): Filter out _exit.

2012-10-25  Ralf Corsépius  <ralf.corsepius@rtems.org>

        * config.gcc (microblaze*-*-rtems*): New target.
        * config/microblaze/rtems.h: New.
        * config/microblaze/t-rtems: New.

2012-10-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/54902
        * tree-ssa-pre.c (fini_pre): Return TODO.
        (execute_pre): Adjust.
        * tree-ssa-tailmerge.c (tail_merge_optimize): Delete unreachable
        blocks before computing dominators.

2012-10-24  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-10-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (memory_address_length): Assert that non-null
        base or index RTXes are registers.  Do not check for REG RTXes.
        Determine addr32 prefix using SImode_address_operand or
        from original base and index RTXes.  Simplify code.

        2012-10-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (memory_address_length): Add new bool
        argument.  Update all uses.
        * config/i386/i386.c (memory_address_length): If not LEA insn, then
        add length of addr32 prefix based on mode of base or index register.
        (ix86_attr_length_address_default) <TYPE_LEA>: Do not handle SImode
        addresses here.  Update call to memory_address_length.
        (ix86_print_address_operand): Use SImode_address_operand predicate.
        * config/i386/predicates.md (SImode_address_operand): New.
        * config/i386/i386.md (lea<mode>): Use SImode_address_operand
        to calculate "mode" attribute.  Use SImode_address_operand predicate
        instead of open-coding accepted RTX codes.

2012-10-22  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-10-22 trunk r192685.
        * doc/invoke.texi (AVR Options): Document __AVR_ARCH__.
        Note __AVR_<device>__ is not defined for cores.
        Don't point to --help=target.
        Order --mcu= documentation according to trunk:/gcc/doc/avr-mmcu.texi.

2012-10-19  Marek Polacek  <polacek@redhat.com>

        Backported from mainline
        2012-10-19  Marek Polacek  <polacek@redhat.com>

        PR middle-end/54945
        * fold-const.c (fold_sign_changed_comparison):  Punt if folding
        pointer/non-pointer comparison.

2012-10-19  Zhenqiang Chen <zhenqiang.chen@linaro.org>

        Backported from mainline
        2012-10-19  Zhenqiang Chen <zhenqiang.chen@linaro.org>

        PR target/54892
        * config/arm/arm.c (arm_expand_compare_and_swap): Use SImode to make
        sure the mode is correct when falling through from above cases.

2012-10-19  Alan Modra  <amodra@gmail.com>

        * configure.ac (HAVE_LD_NO_DOT_SYMS): Set if using gold.
        (HAVE_LD_LARGE_TOC): Likewise.
        * configure: Regenerate.

2012-10-19  Alan Modra  <amodra@gmail.com>

        * config/rs6000/predicates.md (splat_input_operand): Don't call
        input_operand for MEMs.  Instead check for volatile and call
        memory_address_addr_space_p with modified mode.

2012-10-17  Matthew Gretton-Dann  <matthew.gretton-dann@linaro.org>

        Backported from mainline
        2012-07-23  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * config/arm/arm.c (arm_reorg): Ensure all insns are split.

2012-10-16  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/54870
        * tree.h (TREE_ADDRESSABLE): Document special usage on SSA_NAME.
        * cfgexpand.c (update_alias_info_with_stack_vars ): Set it on the
        SSA_NAME pointer that points to a partition if there is at least
        one variable with it set in the partition.
        * dse.c (local_variable_can_escape): New predicate.
        (can_escape): Call it.
        * gimplify.c (mark_addressable): If this is a partitioned decl, also
        mark the SSA_NAME pointer that points to a partition.

2012-10-16  Andrey Belevantsev  <abel@ispras.ru>

        Backport from mainline
        2012-08-09  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/53701
        * sel-sched.c (vinsn_vec_has_expr_p): Clarify function comment.
        rocess not only expr's vinsns but all old vinsns from expr's
        istory of changes.

2012-10-16  Andrey Belevantsev  <abel@ispras.ru>

        Backport from mainline
        2012-07-31  Andrey Belevantsev  <abel@ispras.ru>
        PR target/53975

        * sel-sched-ir.c (has_dependence_note_reg_use): Clarify comment.
        Revert
        2011-08-04  Sergey Grechanik  <mouseentity@ispras.ru>
        * sel-sched-ir.c (has_dependence_note_reg_use): Call ds_full_merge
        only if producer writes to the register given by regno.

2012-09-15  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-10-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (UNSPEC_MOVU): Remove.
        (UNSPEC_LOADU): New.
        (UNSPEC_STOREU): Ditto.
        (<sse>_movu<ssemodesuffix><avxsizesuffix>): Split to ...
        (<sse>_loadu<ssemodesuffix><avxsizesuffix>): ... this and ...
        (<sse>_storeu<ssemodesuffix><avxsizesuffix>) ... this.
        (<sse2>_movdqu<avxsizesuffix>): Split to ...
        (<sse2>_loaddqu<avxsizesuffix>): ... this and ...
        (<sse2>_storedqu<avxsizesuffix>): ... this.
        (*sse4_2_pcmpestr_unaligned): Update.
        (*sse4_2_pcmpistr_unaligned): Ditto.

        * config/i386/i386.c (ix86_avx256_split_vector_move_misalign): Use
        gen_avx_load{dqu,ups,upd}256 to load from unaligned memory and
        gen_avx_store{dqu,ups,upd}256 to store to unaligned memory.
        (ix86_expand_vector_move_misalign): Use gen_sse_loadups or
        gen_sse2_load{dqu,upd} to load from unaligned memory and
        gen_sse_loadups or gen_sse2_store{dqu,upd}256 to store to
        unaligned memory.
        (struct builtin_description bdesc_spec) <IX86_BUILTIN_LOADUPS>:
        Use CODE_FOR_sse_loadups.
        <IX86_BUILTIN_LOADUPD>: Use CODE_FOR_sse2_loadupd.
        <IX86_BUILTIN_LOADDQU>: Use CODE_FOR_sse2_loaddqu.
        <IX86_BUILTIN_STOREUPS>: Use CODE_FOR_sse_storeups.
        <IX86_BUILTIN_STOREUPD>: Use CODE_FOR_sse2_storeupd.
        <IX86_BUILTIN_STOREDQU>: Use CODE_FOR_sse2_storedqu.
        <IX86_BUILTIN_LOADUPS256>: Use CODE_FOR_avx_loadups256.
        <IX86_BUILTIN_LOADUPD256>: Use CODE_FOR_avx_loadupd256.
        <IX86_BUILTIN_LOADDQU256>: Use CODE_FOR_avx_loaddqu256.
        <IX86_BUILTIN_STOREUPS256>: Use CODE_FOR_avx_storeups256.
        <IX86_BUILTIN_STOREUPD256>: Use CODE_FOR_avx_storeupd256.
        <IX86_BUILTIN_STOREDQU256>: Use CODE_FOR_avx_storedqu256.

2012-10-15  Steven Bosscher  <steven@gcc.gnu.org>

        Backport from trunk (r190222):

        PR tree-optimization/54146
        * ifcvt.c: Include pointer-set.h.
        (cond_move_process_if_block): Change type of then_regs and
        else_regs from alloca'd array to pointer_sets.
        (check_cond_move_block): Update for this change.
        (cond_move_convert_if_block): Likewise.
        * Makefile.in: Fix dependencies for ifcvt.o.

2012-10-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/54920
        * tree-ssa-pre.c (create_expression_by_pieces): Properly
        allocate temporary storage for all NARY elements.

2012-10-08  Georg-Johann Lay  <avr@gjlay.de>

        PR target/54854
        * doc/invoke.texi (AVR Options): Deprecate -mshort-calls.

2012-10-05  Mark Kettenis  <kettenis@openbsd.org>

        * config.gcc (*-*-openbsd4.[3-9]|*-*-openbsd[5-9]*): Set
        default_use_cxa_atexit to yes.

2012-10-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/pa.md: Adjust unamed HImode add insn pattern.

2012-10-05  Jan Hubicka  <jh@suse.cz>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/33763
        * tree-inline.c (expand_call_inline): Silently ignore always_inline
        attribute for redefined extern inline functions.

2012-10-03  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-10-03  Andrew W. Nosenko <andrew.w.nosenko@gmail.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Fix logic
        in SSE and YMM state support check for -march=native.

2012-10-03  Alexandre Oliva <aoliva@redhat.com>

        PR debug/53135
        * dwarf2out.c (value_format): Use block4 for dw_val_class_loc
        when needed.

2012-10-02  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-10-02  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/54785
        * doc/invoke.texi: Document -mprefer-avx128.

2012-10-02  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-10-02  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/54741
        *  config/i386/driver-i386.c (XCR_XFEATURE_ENABLED_MASK): New.
        (XSTATE_FP): Likewise.
        (XSTATE_SSE): Likewise.
        (XSTATE_YMM): Likewise.
        (host_detect_local_cpu): Disable AVX, AVX2, FMA, FMA4 and XOP if
        SSE and YMM states aren't supported.

2012-10-01  Tom de Vries  <tom@codesourcery.com>

        * var-tracking.c (set_dv_changed): Add an 'inline' function specifier to
        the prototype.

2012-10-01  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR target/54746
        * config/s390/s390.c (s390_option_override): Add missing break.

2012-09-29  Andreas Tobler  <andreast@fgznet.ch>

        Backport from mainline
        2012-09-29  Andreas Tobler  <andreast@fgznet.ch>

        * config.gcc: Replace 'host' with 'target' when configuring for
        powerpc64*-*-freebsd.

2012-09-28  Meador Inge  <meadori@codesourcery.com>

        Backport from mainline
        2012-09-27  Meador Inge  <meadori@codesourcery.com>

        * gcc-ar.c (main): Handle the returning of the sub-process error
        code correctly.

2012-09-28  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-09-28 trunk r191821.
        * config/avr/avr.c (avr_pgm_check_var_decl): Fix non-error diagnostic.

2012-09-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/54703
        * simplify-rtx.c (simplify_binary_operation_1): Perform
        (x - (x & y)) -> (x & ~y) optimization only for integral modes.

2012-09-24  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-streamer-in.c (unpack_ts_type_common_value_fields): Stream in
        TYPE_NONALIASED_COMPONENT flag.
        * tree-streamer-out.c (pack_ts_type_common_value_fields): Stream out
        TYPE_NONALIASED_COMPONENT flag.

2012-09-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/54638
        Backport from mainline
        2012-04-19  Richard Guenther  <rguenther@suse.de>

        * ira-int.h (ira_allocno_object_iter_cond): Avoid out-of-bound
        array access.

2012-09-20  Joseph Myers  <joseph@codesourcery.com>

        PR c/54552
        * c-typeck.c (c_cast_expr): When casting to a type requiring
        C_MAYBE_CONST_EXPR to be created, pass the inner expression to
        c_fully_fold first.

2012-09-20  Joseph Myers  <joseph@codesourcery.com>

        PR c/54103
        * c-typeck.c (build_unary_op): Pass original argument of
        TRUTH_NOT_EXPR to c_objc_common_truthvalue_conversion, then remove
        any C_MAYBE_CONST_EXPR, if it has integer operands.
        (build_binary_op): Pass original arguments of TRUTH_ANDIF_EXPR,
        TRUTH_ORIF_EXPR, TRUTH_AND_EXPR, TRUTH_OR_EXPR and TRUTH_XOR_EXPR
        to c_objc_common_truthvalue_conversion, then remove any
        C_MAYBE_CONST_EXPR, if they have integer operands.  Use
        c_objc_common_truthvalue_conversion not
        c_common_truthvalue_conversion.
        (c_objc_common_truthvalue_conversion): Build NE_EXPR directly and
        call note_integer_operands for arguments with integer operands
        that are not integer constants.

2012-09-20  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2012-09-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/54563
        * tree-ssa-math-opts.c (execute_cse_sincos): Call
        gimple_purge_dead_eh_edges if last call has been changed.

        2012-09-14  Jakub Jelinek  <jakub@redhat.com>

        PR target/54564
        * config/i386/sse.md (fmai_vmfmadd_<mode>): Use (match_dup 1)
        instead of (match_dup 0) as second argument to vec_merge.
        (*fmai_fmadd_<mode>, *fmai_fmsub_<mode>): Likewise.
        Remove third alternative.
        (*fmai_fnmadd_<mode>, *fmai_fnmsub_<mode>): Likewise.  Negate
        operand 2 instead of operand 1, but put it as first argument
        of fma.
        * config/i386/fmaintrin.h (_mm_fnmadd_sd, _mm_fnmadd_ss,
        _mm_fnmsub_sd, _mm_fnmsub_ss): Negate the second argument instead
        of the first.

2012-09-20  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Set to 4.7.3.
        * DEV-PHASE: Set to prerelease.

2012-09-20  Release Manager

        * GCC 4.7.2 released.

2012-09-15  Andi Kleen  <ak@linux.intel.com>

        Backport from mainline
        2012-09-07  Andi Kleen  <ak@linux.intel.com>

        * gcc/lto-streamer.h (res_pair): Add.
        (lto_file_decl_data): Replace resolutions with respairs.
        Add max_index.
        * gcc/lto/lto.c (lto_resolution_read): Remove max_index.  Add rp.
        Initialize respairs.
        (lto_file_finalize): Set up resolutions vector lazily from respairs.

2012-09-14  Walter Lee  <walt@tilera.com>

        Backport from mainline.
        2012-09-14  Walter Lee  <walt@tilera.com>

        * doc/invoke.texi (Option Summary): fix typesetting for -mcpu
        option for TILEPro and TILE-Gx.

2012-09-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (x86_prefetchw): New global variable.
        (TARGET_PREFETCHW): New macro.
        * config/i386/i386.c (PTA_PREFETCHW): Ditto.
        (processor_alias_table): Add PTA_PREFETCHW to
        bdver1, bdver2 and btver1.
        (ix86_option_override_internal): Set x86_prefetchw for
        PTA_PREFETCHW targets.
        * config/i386/i386.md (prefetch): Expand to prefetchw
        for TARGET_PREFETCHW.
        (*prefetch_3dnow_<mode>): Also enable for TARGET_PREFETCHW.

        Backport from mainline
        2012-08-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (prefetch): Do not assert mode of operand 0.
        (*prefetch_sse_<mode>): Do not set mode of address_operand predicate.
        Rename to ...
        (*prefetch_sse): ... this.
        (*prefetch_3dnow_<mode>): Do not set mode of address_operand predicate.
        Rename to ...
        (*prefetch_3dnow): ... this.

2012-09-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/54559
        * c-typeck.c (c_finish_return): Do convert to BOOLEAN_TYPE or
        COMPLEX_TYPE with in_late_binary_op set temporarily to true.

2012-09-12  Teresa Johnson  <tejohnson@google.com>

        Backport from mainline.
        2012-09-12  Teresa Johnson  <tejohnson@google.com>

        PR gcov-profile/54487
        * configure.ac (HOST_HAS_F_SETLKW): Set based on compile
        test using F_SETLKW with fcntl.
        * configure, config.in: Regenerate.

2012-09-12  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-09-12  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>

        * config/i386/i386.md : Comments on fma4 instruction selection
        reflect requirement on register pressure based cost model.

        * config/i386/driver-i386.c (host_detect_local_cpu): fma4
        flag is set-reset as informed by the cpuid flag.

        * config/i386/i386.c (processor_alias_table): fma4
        flag is enabled for bdver2.

2012-09-12  Christian Bruel  <christian.bruel@st.com>

        * config/sh/newlib.h (NO_IMPLICIT_EXTERN_C): Define.

2012-09-12  Jakub Jelinek  <jakub@redhat.com>

        * config.gcc: Obsolete picochip-*.

2012-09-11  Richard Guenther  <rguenther@suse.de>

        PR debug/54534
        * cgraph.h (varpool_can_remove_if_no_refs): Restore dependence
        on flag_toplevel_reorder.

2012-09-10  Richard Henderson  <rth@redhat.com>

        * config/alpha/predicates.md (small_symbolic_operand): Disallow
        large offsets.

2012-09-10  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-09-10 mainline r191132.

        PR target/54536
        * config/avr/avr-mcus.def (at90usb1287): Set LIBRARY_NAME to "usb1287".

2012-09-10  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR middle-end/54515
        * tree-sra.c (disqualify_base_of_expr): Check for possible
        NULL_TREE returned by get_base_address()

2012-09-07  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-06-26  Jan Hubicka  <jh@suse.cz>

        PR lto/53572
        * cgraph.h (varpool_can_remove_if_no_refs): Fix handling of
        used symbols.

2012-09-07  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-07-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53922
        * tree-vrp.c (value_inside_range): Change prototype to take
        min/max instead of value-range.
        (range_includes_zero_p): Likewise.  Return the result from
        value_inside_range.
        (extract_range_from_binary_expr_1): Adjust to handle dont-know
        return value from range_includes_zero_p.
        (extract_range_from_unary_expr_1): Likewise.
        (compare_range_with_value): Likewise.
        (vrp_meet_1): Likewise.

2012-09-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53667
        * tree-ssa-structalias.c (handle_rhs_call): Properly clobber
        EAF_NOESCAPED arguments.  Transitively close non-EAF_DIRECT
        arguments separately.

2012-09-07  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2012-09-06  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/54455
        * sel-sched-ir.c (maybe_tidy_empty_bb): Give up if previous fallthru
        bb ends up with asm goto referencing bb's label.

2012-09-07  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        Backport from mainline.
        2012-08-29  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
                    Richard Earnshaw  <richard.earnshaw@arm.com>

        PR target/54252
        * config/arm/arm.c (neon_dereference_pointer): Adjust nelems by
        element size. Use elem_type from the formal parameter. New parameter
        fcode.
        (neon_expand_args): Adjust call to neon_dereference_pointer.

2012-09-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (<sse4_1_avx2>_pblendvb): Use
        reg_not_xmm0_operand_maybe_avx as operand 0 constraint.

2012-09-06  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-08-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (isa): Add fma and fma4.
        (enabled): Handle fma and fma4.
        * config/i386/sse.md (*fma_fmadd_<mode>): Merge *fma4_fmadd_<mode>.
        (*fma_fmsub_<mode>): Merge *fma4_fmsub_<mode>.
        (*fma_fnmadd_<mode>): Merge *fma4_fnmadd_<mode>.
        (*fma_fnmsub_<mode>): Merge *fma4_fnmsub_<mode>.
        (*fma_fmaddsub_<mode>): Merge *fma4_fmaddsub_<mode>.
        (*fma_fmsubadd_<mode>): Merge *fma4_fmsubadd_<mode>.

        2012-08-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (*fma_fmadd_<mode>, *fma_fmsub_<mode>,
        *fma_fnmadd_<mode>, *fma_fnmsub_<mode>, *fma_fmaddsub_<mode>,
        *fma_fmsubadd_<mode>): Move FMA3 insn patterns before FMA4 patterns.

2012-09-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/54498
        * tree-ssa-alias.h (get_continuation_for_phi): Add flag to
        abort when reaching an already visited region.
        * tree-ssa-alias.c (maybe_skip_until): Likewise.  And do it.
        (get_continuation_for_phi_1): Likewise.
        (walk_non_aliased_vuses): When we translated the reference,
        abort when we re-visit a region.
        * tree-ssa-pre.c (translate_vuse_through_block): Adjust.

2012-09-06  Andrew Pinski  <apinski@cavium.com>

        PR tree-opt/54494
        * tree-inline.c (remap_gimple_op_r): Copy TREE_SIDE_EFFECTS also.

2012-09-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/54486
        * builtins.c (fold_builtin_strspn, fold_builtin_strcspn): Use
        build_int_cst with size_type_node instead of size_int.

2012-09-05  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-09-05 mainline r190697.

        PR target/54461
        * config.gcc (tm_file,target=avr-*-*): Add avr/avrlibc.h if
        configured --with-avrlibc.
        (tm_defines,target=avr-*-*): Add WITH_AVRLIBC if configured
        --with-avrlibc.
        * config/avr/avrlibc.h: New file.
        * config/avr/avr-c.c: Build-in define __WITH_AVRLIBC__ if
        configured --with-avrlibc.
        * doc/invoke.texi (AVR Built-in Macros): Document __WITH_AVRLIBC__

2012-09-05  Bin Cheng  <bin.cheng@arm.com>

        Backport from 2012-09-04 mainline r190919

        PR target/45070
        * config/arm/arm.c (thumb1_extra_regs_pushed): Handle return value
        of size less than 4 bytes by using macro ARM_NUM_INTS.
        (thumb1_unexpanded_epilogue): Use macro ARM_NUM_INTS.

2012-09-04  Richard Henderson  <rth@redhat.com>

        * alias.c (read_dependence): Return true for ALIAS_SET_MEMORY_BARRIER.

2012-09-04  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-09-04 mainline r190920

        PR target/54476
        * config/avr/avr.c (avr_expand_delay_cycles): Mask operand with SImode.

2012-09-04  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        Backport from 2012-09-04 mainline r190914

        PR target/54220
        * config/avr/avr.c (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): New
        define to...
        (avr_allocate_stack_slots_for_args): ...this new static function.

2012-09-03  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-08-23  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/54335
        * doc/invoke.texi: Add -da and remove -dm.

2012-09-03  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2012-09-01  Jakub Jelinek  <jakub@redhat.com>

        PR target/54436
        * config/i386/i386.md (*mov<mode>_insv_1_rex64, *movsi_insv_1): If
        operands[1] is CONST_INT_P, convert it to QImode before printing.

        2012-08-31  Jakub Jelinek  <jakub@redhat.com>

        PR c/54428
        * c-convert.c (convert): Don't call fold_convert_loc if
        TYPE_MAIN_VARIANT of a COMPLEX_TYPE is the same, unless e
        is a COMPLEX_EXPR.  Remove TYPE_MAIN_VARIANT check from
        COMPLEX_TYPE -> COMPLEX_TYPE conversion.

        2012-08-24  Jakub Jelinek  <jakub@redhat.com>

        PR c/54363
        * gimplify.c (optimize_compound_literals_in_ctor): Only recurse
        if init is a CONSTRUCTOR.

2012-09-02  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/54369
        * config/mips/mips.c (mips_reorg): Invoke cleanup_barriers before
        calling dbr_schedule.
        * config/sparc/sparc.c (sparc_reorg): Likewise.

2012-08-31  Kirill Yukhin  <kirill.yukhin@intel.com>

        Backport from mainline
        2012-08-23  Yuri Rumyantsev  <ysrumyan@gmail.com>

        * config/i386/i386.c (ia32_multipass_dfa_lookahead) : Add
        case for Atom processor.

2012-08-28  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-08-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46254
        * config/i386/predicates.md (cmpxchg8b_pic_memory_operand): Return
        true for TARGET_64BIT or !flag_pic.
        * config/i386/sync.md (*atomic_compare_and_swap_doubledi_pic): Remove.
        (atomic_compare_and_swap_double<mode>): Change operand 2 predicate
        to cmpxchg8b_pic_memory_operand.  Use DWIH mode iterator.
        Add insn constraint.  Conditionally emit xchg asm insns.
        (atomic_compare_and_swap<mode>): Update calls.  Check only
        cmpxchg8b_pic_memory_operand in memory address fixup.
        (DCASMODE): Remove.
        (CASHMODE): Rename from DCASHMODE.
        (doublemodesuffix): Update modes.
        (regprefix): New mode attribute.

        (unspecv) <UNSPECV_CMPXCHG_{1,2,3,4}>: Remove.
        <UNSPECV_CMPXCHG>: New constant.
        (atomic_compare_and_swap<mode>_1): Rename from
        atomic_compare_and_swap_single<mode>.  Update calls and
        unspec_volatile constants.
        (atomic_compare_and_swap<mode>_doubleword): Rename from
        atomic_compare_and_swap_double<mode>.  Update calls and
        unspec_volatile constants.

2012-08-28  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-28  Walter Lee  <walt@tilera.com>

        * confg/tilegx/tilegx.md: Fix code style.
        (*zero_extendsidi_truncdisi): Fix typo.
        * config/tilegx/tilegx.c: Fix code style.
        (tilegx_function_profiler): Fix typo.

2012-08-27  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-27  Walter Lee  <walt@tilera.com>

        * doc/md.texi (TILE-Gx): Fix typo.

2012-08-27  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-27  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (tilegx_function_profiler): Fix typo.
        * config/tilepro/tilepro.c (tilepro_function_profiler): Ditto.

2012-08-27  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-27  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.md (*bfins): Rename to insn_bfins.
        (insn_bfins): Delete.

2012-08-27  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-27  Walter Lee  <walt@tilera.com>

        * config/tilegx/sync.md (atomic_compare_and_swap_bare<mode>,
        atomic_exchange_bare<mode>,
        atomic_fetch_<fetchop_name>_bare<mode>): Set type to X1_remote.
        * config/tilegx/tilegx-generic.md (X1_remote): New insn_reservation.
        * config/tilegx/tilegx.md (type): Add X1_remove.
        (insn_cmpexch<four_if_si>, insn_exch<four_if_si>,
        insn_fetchadd<four_if_si>, insn_fetchaddgez<four_if_si>,
        insn_fetchand<four_if_si>, insn_fetchor<four_if_si>): Set type to
        X1_remote.

2012-08-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/54088
        * jump.c (delete_related_insns): Robustify latest change.

2012-08-21  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-08-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/54146
        * tree-ssa-loop-niter.c (find_loop_niter_by_eval): Free the
        exit vector.
        * ipa-pure-const.c (analyze_function): Use FOR_EACH_LOOP_BREAK.
        * cfgloop.h (FOR_EACH_LOOP_BREAK): Fix.
        * tree-ssa-structalias.c (handle_lhs_call): Properly free rhsc.
        * tree-ssa-loop-im.c (analyze_memory_references): Adjust.
        (tree_ssa_lim_finalize): Free all mem_refs.
        * tree-ssa-sccvn.c (extract_and_process_scc_for_name): Free
        scc when bailing out.
        * modulo-sched.c (sms_schedule): Use FOR_EACH_LOOP_BREAK.
        * ira-build.c (loop_with_complex_edge_p): Free loop exit vector.
        * graphite-sese-to-poly.c (scop_ivs_can_be_represented): Use
        FOR_EACH_LOOP_BREAK.

        2012-08-17  Richard Guenther  <rguenther@suse.de>

        * tree-sra.c (modify_function): Free redirect_callers vector.
        * ipa-split.c (split_function): Free args_to_pass vector.
        * tree-vect-stmts.c (vectorizable_operation): Do not pre-allocate
        vec_oprnds.
        (new_stmt_vec_info): Do not pre-allocate STMT_VINFO_SAME_ALIGN_REFS.
        * tree-vect-slp.c (vect_free_slp_instance): Free the instance.
        (vect_analyze_slp_instance): Free everything.
        (destroy_bb_vec_info): Free the SLP instances.

        2012-08-17  Richard Guenther  <rguenther@suse.de>

        * params.def (integer-share-limit): Decrease from 256 to 251,
        add rationale.

        2012-08-21  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-im.c (tree_ssa_lim_finalize): Properly free
        the affine expansion cache.

2012-08-20  Patrick Marlier  <patrick.marlier@gmail.com>

        Backported from trunk
        2012-08-20  Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/53992
        * omp-low.c (lower_omp_1): Handle GIMPLE_TRANSACTION.

2012-08-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        Backport from mainline.
        2012-08-15  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/54212
        * config/arm/neon.md (vec_set<mode>_internal VD,VQ): Do not
        mark as predicable. Adjust asm template.
        (vec_setv2di_internal): Likewise.
        (vec_extract<mode> VD, VQ): Likewise.
        (vec_extractv2di): Likewise.
        (neon_vget_lane<mode>_sext_internal VD, VQ): Likewise.
        (neon_vset_lane<mode>_sext_internal VD, VQ): Likewise.
        (neon_vdup_n<mode> VX, V32): Likewise.
        (neon_vdup_nv2di): Likewise.

2012-08-17  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-17  Walter Lee  <walt@tilera.com>

        * config/tilegx/feedback.h (FEEDBACK_ENTER_EXPLICIT): Define.
        (FEEDBACK_ENTER): Define.
        (FEEDBACK_REENTER): Define.
        (FEEDBACK_ENTRY): Define.
        * config/tilepro/feedback.h: (FEEDBACK_ENTER_EXPLICIT): Define.
        (FEEDBACK_ENTER): Define.
        (FEEDBACK_REENTER): Define.
        (FEEDBACK_ENTRY): Define.

2012-08-16  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-08-16  Walter Lee  <walt@tilera.com>

        * config.gcc (tilegx-*-linux*): Add feedback.h.
        (tilepro-*-linux*): Likewise.
        * config/tilegx/feedback.h: New file.
        * config/tilepro/feedback.h: New file.

2012-08-08  Pavel Chupin  <pavel.v.chupin@intel.com>

        Backport from mainline r189840 and r187586:
        2012-07-25 Sergey Melnikov <sergey.melnikov@intel.com>

        * config/i386/i386.md (stack_protect_set): Disable the pattern
        for Android since Android libc (bionic) does not provide random
        value for stack protection guard at gs:0x14. Guard value
        will be provided from external symbol (default implementation).
        (stack_protect_set_<mode>): Likewise.
        (stack_protect_test): Likewise.
        (stack_protect_test_<mode>): Likewise.
        * gcc/defaults.h: Define macro TARGET_HAS_BIONIC to 0 - target does
        not have Bionic by default
        * config/linux.h: Redefine macro TARGET_HAS_BIONIC to (OPTION_BIONIC)
        Macro OPTION_BIONIC is defined in this file and provides Bionic
        accessibility status

        2012-05-16  Igor Zamyatin  <igor.zamyatin@intel.com>

        * configure.ac: Stack protector enabling for Android targets.
        * configure: Regenerate.

2012-08-13  Jakub Jelinek  <jakub@redhat.com>

        Backported from trunk
        2012-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/53942
        * function.c (assign_parm_setup_reg): Avoid zero/sign extension
        directly from likely spilled non-fixed hard registers, move them
        to pseudo first.

2012-08-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (xop_phaddbq):  Fix vec_select selectors.
        (xop_phaddubq): Ditto.

2012-08-10  Ulrich Weigand  <ulrich.weigand@linaro.org>

        Backport from mainline
        2012-07-30  Ulrich Weigand  <ulrich.weigand@linaro.org>
                    Richard Earnshaw  <rearnsha@arm.com>

        * target.def (vector_alignment): New target hook.
        * doc/tm.texi.in (TARGET_VECTOR_ALIGNMENT): Document new hook.
        * doc/tm.texi: Regenerate.
        * targhooks.c (default_vector_alignment): New function.
        * targhooks.h (default_vector_alignment): Add prototype.
        * stor-layout.c (layout_type): Use targetm.vector_alignment.
        * config/arm/arm.c (arm_vector_alignment): New function.
        (TARGET_VECTOR_ALIGNMENT): Define.

        * tree-vect-data-refs.c (vect_update_misalignment_for_peel): Use
        vector type alignment instead of size.
        * tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound): Use
        element type size directly instead of computing it from alignment.
        Fix variable naming and comment.

2012-08-09  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-08-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_pad_noreturn): Rename to ...
        (alpha_pad_function_end): ... this.  Also insert NOP between
        sibling call and GP load.
        (alpha_reorg): Update call to alpha_pad_function_end.  Expand comment.

2012-08-09  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline
        2012-08-08  Richard Sandiford  <rdsandiford@googlemail.com>
                    H.J. Lu  <hongjiu.lu@intel.com>

        PR rtl-optimization/54157
        * combine.c (gen_lowpart_for_combine): Don't return identity
        for CONST or symbolic reference.

2012-08-06  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-07-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_lea_outperforms): Remove prototype.
        * config/i386/i386.c (ix86_lea_outperforms): Make static.  Make
        split_cost argument signed.
        (ix86_use_lea_for_mov): Use INVALID_REGNUM instead of -1.
        (ix86_avoid_lea_for_addr): Ditto.

        2012-07-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_avoid_lea_for_addr): Return false if
        the address has less than two components.

2012-08-02  Steve Ellcey  <sellcey@mips.com>

        Backport from mainline
        2012-07-19  Steve Ellcey  <sellcey@mips.com>

        * config/mips/mips.c (mips_set_mips16_mode): Clear SYNCI_MASK in
        MIPS16 mode.

2012-08-02  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-07-24  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53961
        * config/i386/i386.c (ix86_legitimate_address_p): Move check for
        negative constant address for TARGET_X32 ...
        (ix86_decompose_address): ... here.  Reject constant addresses
        that don't satisfy x86_64_immediate_operand predicate.

        2012-07-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53961
        * config/i386/i386.md (*lea): Add asserts to detect invalid addresses.
        * config/i386/i386.c (ix86_print_operand_address): Ditto.
        (ix86_decompose_address): Allow (zero_extend:DI (subreg:SI (...)))
        addresses.  Prevent zero extensions of CONST_INT operands.

        2012-07-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53961
        * config/i386/i386.md (*lea): New insn pattern.
        (*lea_1): Remove.
        (*lea<mode>_2): Ditto.
        (*lea_{3,4,5,6}_zext): Ditto.
        * config/i386/predicates.md (lea_address_operand): Do not reject
        zero-extended address operands.
        * config/i386/constraints.md (j): Remove address constraint.
        * config/i386/i386.c (ix86_decompose_address): Allow SImode subreg
        of an address.
        (ix86_print_operand_address): Handle SImode subreg of an address.
        (ix86_avoid_lea_for_addr): Reject zero-extended addresses for now.

2012-08-01  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-03-09  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52530
        * config/i386/i386.c (ix86_print_operand): Handle 'E' operand modifier.
        (ix86_print_operand_address): Handle UNSPEC_LEA_ADDR. Do not fallback
        to set code to 'q'.
        * config/i386/i386.md (UNSPEC_LEA_ADDR): New unspec.
        (*movdi_internal_rex64): Use %E operand modifier for lea.
        (*movsi_internal): Ditto.
        (*lea_1): Ditto.
        (*lea<mode>_2): Ditto.
        (*lea_{3,4,5,6}_zext): Ditto.
        (*tls_global_dynamic_32_gnu): Ditto.
        (*tls_global_dynamic_64): Ditto.
        (*tls_dynamic_gnu2_lea_32): Ditto.
        (*tls_dynamic_gnu2_lea_64): Ditto.
        (pro_epilogue_adjust_stack_<mode>_add): Ditto.

2012-08-01  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-08-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_address_subreg_operand): Reject
        stack pointer.
        (ix86_print_operand_address): Assert that parts.base and parts.index
        are non-NULL after call to simplify_subreg.

2012-07-22  Oleg Endo  <olegendo@gcc.gnu.org>

        PR target/33135
        * config/sh/sh.opt (mieee): Use Var instead of Mask.  Correct
        description.
        * config/sh/sh.c (sh_option_override): Do not change
        flag_finite_math_only.  Set TARGET_IEEE to complement of
        flag_finite_math_only.
        * doc/invoke.texi (SH options): Add mno-ieee.  Correct
        description of mieee and mno-ieee behavior.

2012-07-20  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/53877
        * config/i386/lzcntintrin.h (_lzcnt_u32): New.
        (_lzcnt_u64): Ditto.

2012-07-20  Andrey Belevantsev  <abel@ispras.ru>

        Backport from mainline
        2012-03-06  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/52250
        * sel-sched-ir.c (maybe_tidy_empty_bb): Try harder to find a bb
        to put note list into.  Unconditionally call move_bb_info.
        (move_bb_info): Do not assert the blocks being in the same region,
        just drop the note list if they are not.

2012-07-19  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (adddi3_insn_sp32): Add earlyclobber.

2012-07-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-forwprop.c (combine_conversions): Punt if the RHS of the
        defining statement is a SSA name that occurs in abnormal PHIs.

2012-07-19  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-fold.c (canonicalize_constructor_val): Strip only useless type
        conversions.

2012-07-19  Richard Guenther  <rguenther@suse.de>
            Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-ccp.c (valid_lattice_transition): Clarify comment
        about transition from invariant to known bits.
        (likely_value): Addresses with UNDEFINED components are UNDEFINED.

2012-07-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/54017
        * tree-cfgcleanup.c (cleanup_omp_return): Remove.
        (cleanup_tree_cfg_bb): Don't call it.
        * omp-low.c (expand_omp_sections): Fix up the !exit_reachable case
        handling.

2012-07-19  Christian Bruel  <christian.bruel@st.com>

        PR target/54029
        * config/sh/sh.c (gen_far_branch): Set JUMP_LABEL for return jumps.

2012-07-18  Ralf Corsépius  <ralf.corsepius@rtems.org>

        * config.gcc (v850-*-rtems*): New target.
        * config/v850/rtems.h: New.
        * config/v850/t-rtems: New.

2012-07-18  Nick Clifton  <nickc@redhat.com>

        * doc/invoke.texi (ARM Options): Document -munaligned-access.

2012-07-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53961

        Backport from mainline
        2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/53110
        * config/i386/i386.md (and<mode>3): For andq $0xffffffff, reg
        instead expand it as zero extension.

2012-07-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (QImode and HImode cmove splitters): Merge
        QImode and HImode splitters.  Use ix86_comparison_operator.
        Explicitly match FLAGS_REG.
        (DFmode cmove splitter): Explicitly match FLAGS_REG.

2012-07-13  Richard Sandiford  <rdsandiford@googlemail.com>
            Steven Bosscher  <steven@gcc.gnu.org>
            Bernd Schmidt  <bernds@codesourcery.com>

        PR rtl-optimization/53908
        * df-problems.c (can_move_insns_across): When doing
        memory-reference book-keeping, handle call insns.

2012-07-10  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-07-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53811
        * config/i386/i386.c (x86_output_mi_thunk): Check if fnaddr satisfies
        sibcall_insn_operand.  Move it to a temporary register if not.

        2012-07-06  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53853
        * config/i386/i386.c (x86_output_mi_thunk): For CM_LARGE_PIC model,
        emit PIC sequence for fnaddr symbol reference in advance.

2012-07-09  Jason Merrill  <jason@redhat.com>

        PR c++/53882
        * tree.c (type_contains_placeholder_1): Handle NULLPTR_TYPE.
        (type_hash_eq): Likewise.

        PR c++/53826
        * tree.c (build_zero_cst): Handle NULLPTR_TYPE.

2012-07-07  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * combine.c (force_to_mode) [LSHIFTRT]: Avoid undefined behaviour
        due to negative shift amount.

2012-07-06  Kai Tietz  <ktietz@redhat.com>

        Backport from mainline.
        PR bootstrap/52947
        * config/i386/mingw32.h (NATIVE_SYSTEM_HEADER_DIR): Define it always
        as "/mingw/include".

2012-07-06  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.c (mn10300_encode_section_info): Call
        default_encode_section_info.

2012-07-06  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-03-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52786
        * double-int.c (rshift_double): Remove not needed cast.

        2012-03-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50708
        * double-int.h (rshift_double): Remove.
        * double-int.c (lshift_double): Use absu_hwi to make count
        positive.
        (rshift_double): Make static, take unsigned count argument,
        remove handling of negative count argument.
        (double_int_rshift): Dispatch to lshift_double.

2012-07-06  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-06-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53693
        * tree-vect-patterns.c (vect_operation_fits_smaller_type):
        Reject operands with more than one use.

2012-07-06  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-04-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52621
        * tree-chrec.c (evolution_function_is_invariant_rec_p): Properly
        consider loop nesting.
        (evolution_function_is_univariate_p): Properly check the remainder
        for chrecs.

2012-07-05  Pat Haugen <pthaugen@us.ibm.com>

        Backport from mainline
        2012-05-24  Pat Haugen <pthaugen@us.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Change
        rs6000_sched_costly_dep default to true_store_to_load_dep_costly.
        (adjacent_mem_locations): Move some code to and call...
        (get_memref_parts): ...new function.
        (mem_locations_overlap): New function.
        (rs6000_adjust_priority): Adjust calls to is_load_insn/is_store_insn.
        (is_mem_ref): Rename to...
        (find_mem_ref): ...this. Return MEM rtx.
        (get_store_dest): Remove function.
        (is_load_insn1, is_load_insn, is_store_insn1, is_store_insn): Add
        new parameter and adjust calls.
        (rs6000_is_costly_dependence): Update calls for extra arg. Make sure
        mem refs overlap for true_store_to_load_dep_costly.
        (rs6000_sched_reorder2): Update calls for extra arg. Adjust args
        passed to adjacent_mem_locations.
        (is_costly_group): Walk resolved dependency list.
        (force_new_group): Emit group ending nop for Power6/Power7.
        * config/rs6000/rs6000.md (UNSPEC_GRP_END_NOP): New enum value.
        (group_ending_nop): New define_insn.

2012-07-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53433
        * gimple-fold.c (get_base_constructor): Do not return an
        error_mark_node DECL_INITIAL.

2012-07-04  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-07-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_option_override_internal): Fix wrong
        code model string in the error message.

2012-07-04  Tristan Gingold  <gingold@adacore.com>

        Backport from mainline.
        2012-06-25  Tristan Gingold  <gingold@adacore.com>

        * config/i386/winnt.c (i386_pe_seh_end_prologue): Move code to ...
        (seh_cfa_adjust_cfa): ... that function.
        (seh_emit_stackalloc): Do not emit out of range values.
        * config/i386/i386.md: Delete unused UNSPEC_REG_SAVE,
        UNSPEC_DEF_CFA constants.
        * config/i386/i386.h (SEH_MAX_FRAME_SIZE): Define.
        * config/i386/i386.c (ix86_frame_pointer_required): Required
        for very large frames on SEH target.
        (ix86_compute_frame_layout): Save area is before frame pointer
        on SEH target.  Handle very large frames.
        (ix86_expand_prologue): Likewise.

2012-07-04  Richard Guenther  <rguenther@suse.de>

        * tree.c (find_decls_types_r): Handle TYPE_CONTEXT the same
        as in free_lang_data_in_type.

2012-07-02  Martin Jambor  <mjambor@suse.cz>

        Backport from mainline.
        2012-07-02  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/38474
        * ipa-prop.c (compute_known_type_jump_func): Put BINFO check before a
        dynamic type change check.

2012-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.c (lower_try_finally_switch): Really put the location of the
        last statement of the finally block onto the switch.

2012-06-29  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * configure: Regenerate.

        Backport from mainline.
        2012-03-15  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config.gcc (target_type_format_char): New. Document it. Set it for
        arm*-*-* .
        * configure.ac (gnu_unique_option): Use target_type_format_char
        in test.  Comment rationale.

2012-06-29  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        Backport from mainline.
        2012-05-30  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config/arm/arm.c (arm_evpc_neon_vrev): Adjust off by one error.

2012-06-28  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-06-28 mainline r189049

        PR 53595
        * config/avr/avr.c (avr_hard_regno_call_part_clobbered): New.
        * config/avr/avr-protos.h (avr_hard_regno_call_part_clobbered): New.
        * config/avr/avr.h (HARD_REGNO_CALL_PART_CLOBBERED): Forward to
        avr_hard_regno_call_part_clobbered.

2012-06-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53790
        * expr.c (expand_expr_real_1): Verify if the type is complete
        before inspecting its size.

2012-06-27  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (comparesi3_extend): Remove = modifier from
        input operand.

2012-06-26  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/53682
        * cselib.c (promote_debug_loc): Don't crash on NULL argument.

2012-06-26  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (simple_return): Use the simple_return rtx.

2012-06-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/53759
        * config/i386/sse.md (sse_loadlps): Use x m x constraints instead
        of x x x in the vmovlps load alternative.

2012-06-22  Richard Guenther  <rguenther@suse.de>

        * gcov-iov.c: Include bconfig.h and system.h.

2012-06-22  Richard Guenther  <rguenther@suse.de>

        PR gcov-profile/53744
        * gcov-iov.c (main): Treat "" and "prerelease" the same.

2012-06-22  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-live.c (remove_unused_scope_block_p): Remove again
        DECL_IGNORED_P non-reg vars even if they are used.

2012-06-19  Jason Merrill  <jason@redhat.com>

        PR c++/52637
        * dwarf2out.c (modified_type_die): Use scope_die_for.
        (gen_type_die_with_usage, dwarf2out_finish): Likewise.
        (uses_local_type_r, uses_local_type): New.
        (scope_die_for): Keep a type that uses a local type in local scope.
        Use get_context_die for namespace and type scope.

2012-06-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53470
        * tree.c (free_lang_data_in_type): Do not clear TYPE_CONTEXT but
        replace it with the first non-BLOCK context.

2012-06-18  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/53700

        Backport from mainline
        2012-03-29  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-color.c (setup_left_conflict_sizes_p): Process all
        conflicting objects.

2012-06-18  Venkataramanan Kumar <venkataramanan.kumar@amd.com>

        Backport from mainline
        2012-05-09 Uros Bizjak  <ubizjak@gmail.com>

        PR target/52908
        * config/i386/sse.md (vec_widen_smult_hi_v4si): Expand using
        xop_pmacsdqh insn pattern instead of xop_mulv2div2di3_high.
        (vec_widen_smult_lo_v4si): Expand using xop_pmacsdql insn pattern
        instead of xop_mulv2div2di3_low.
        (xop_p<macs>dql): Fix vec_select selector.
        (xop_p<macs>dqh): Ditto.
        (xop_mulv2div2di3_low): Remove insn_and_split pattern.
        (xop_mulv2div2di3_high): Ditto.

2012-06-17  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline:
        2012-06-17  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (vcvtph2ps): Fix vec_select selector.

2012-06-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        Backport from mainline:
        2012-06-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/pa.h (MAX_PCREL17F_OFFSET): Define.
        * config/pa/pa.c (pa_attr_length_millicode_call): Use
        MAX_PCREL17F_OFFSET instead of fixed offset.
        (pa_attr_length_call): Likewise.
        (pa_attr_length_indirect_call): Likewise.

2012-06-15  Walter Lee  <walt@tilera.com>

        Backport from mainline:
        2012-06-15  Walter Lee  <walt@tilera.com>

        * config/tilegx/sync.md (atomic_fetch_<fetchop_name><mode>): Fix typo.

        2012-06-14  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/tilegx/sync.md (atomic_fetch_sub<mode>): Fix typo.

2012-06-15  Aldy Hernandez  <aldyh@redhat.com>

        Backport from mainline:

        2012-05-31  Aldy Hernandez  <aldyh@redhat.com>
        * tree-ssa-loop-im.c (execute_sm): Do not check flag_tm.
        * gimple.h (block_in_transaction): Check for flag_tm.

2012-06-14  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/52558

        Backport from mainline:
        2012-05-21  Aldy Hernandez  <aldyh@redhat.com>
        * gimple.h (gimple_set_in_transaction): Remove.
        (gimple_in_transaction): Look in BB instead.
        (gimple_statement_base): Remove in_transaction field.
        * basic-block.h (enum bb_flags): Add BB_IN_TRANSACTION.
        * trans-mem.c (compute_transaction_bits): Place transaction bit
        information into basic blocks.

        2012-05-31  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/52558
        * cfg.c (alloc_aux_for_edge): Fix comment.
        (alloc_aux_for_edge): Remove static.
        * basic-block.h (alloc_aux_for_edge): Protoize.
        * tree-ssa-loop-im.c (execute_sm_if_changed): New.
        (execute_sm_if_changed_flag): New.
        (execute_sm_if_changed_flag_set): New.
        (execute_sm): Do not generate data races unless requested.
        (tree_ssa_lim_initialize): Call alloc_aux_for_edges.
        (tree_ssa_lim_finalize): Call free_aux_for_edges.
        * gimple.h (block_in_transaction): New.
        (gimple_in_transaction): Use block_in_transaction.

2012-06-14  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2012-06-12  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/53589
        * cfgrtl.c (force_nonfallthru_and_redirect): Do asm_goto_edge
        discovery even when e->dest != target.  If any LABEL_REF points
        to e->dest label, redirect it to target's label.

        2012-06-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/53580
        * omp-low.c (scan_omp_1_stmt): If check_omp_nesting_restrictions
        returns false, replace stmt with GIMPLE_NOP.
        (check_omp_nesting_restrictions): Instead of issuing warnings,
        issue errors and return false if any errors were reported.

2012-06-14  Richard Guenther  <rguenther@suse.de>

        * BASE-VER: Set to 4.7.2.
        * DEV-PHASE: Set to prerelease.

2012-06-12  Christian Bruel  <christian.bruel@st.com>

        PR target/53621
        * config/sh/sh.c (sh_option_override): Don't force
         flag_omit_frame_pointer and maccumulate_outgoing_args.
        * config/sh/sh.opt (maccumulate-outgoing-args): Init as Var.

2012-06-14  Release Manager

        * GCC 4.7.1 released.

2012-06-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/ia64/sync.md (fetchop_name): Change ior attribute to "or".

2012-06-13  Richard Henderson  <rth@redhat.com>

        * config/rs6000/sync.md (atomic_load, atomic_store): Use INT1 mode
        iterator instead of INT.

2012-06-08  Richard Henderson  <rth@redhat.com>

        PR c++/53602
        * combine-stack-adj.c (force_move_args_size_note): Add ARGS_SIZE
        note to a clobber insn when no other insn is available.

2012-06-04  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/53524
        * doc/invoke.texi (Wenum-compare): Update documentation.

2012-06-04  Edmar Wienskoski  <edmar@freescale.com>

        PR target/53559
        * config/rs6000/altivec.md (altivec_stvlx): Change machine mode of
        operands.
        (altivec_stvlxl): Ditto.
        (altivec_stvrx): Ditto.
        (altivec_stvrxl): Ditto.

2012-06-04  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/47530
        * trans-mem.c (expand_block_edges): Do not skip the first
        statement when resetting the BB.

2012-06-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53471
        * dwarf2out.c (dwarf2out_finish): If generating LTO do not
        create new assembler names.

2012-06-04  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52979
        * stor-layout.c (get_best_mode): Don't return mode with bitsize
        larger than maxbits.  Don't compute maxbits modulo align.
        Also check that unit bytes long store at bitpos / unit * unit
        doesn't affect bits beyond bitregion_end.
        * expmed.c (store_bit_field_1): Avoid trying insv if OP_MODE MEM
        would not fit into bitregion_start ... bitregion_end + 1 bit
        region.
        (store_split_bit_field): Decrease unit close to end of bitregion_end
        if access is restricted in order to avoid mutual recursion.

2012-06-04  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-06-04 mainline r188172

        PR target/46261
        * config/avr/avr-stdint.h: New file.
        * config.gcc (avr-*-*,tm_file): Use avr/avr-stdint.h instead of
        newlib-stdint.h

2012-06-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53550
        * tree-ssa-loop-niter.c (number_of_iterations_cond): If type
        is POINTER_TYPE_P, use sizetype as step type instead of type.

2012-06-04  Richard Guenther  <rguenther@suse.de>
            Eric Botcazou  <ebotcazou@adacore.com>

        Backport from mainline
        2012-04-03  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (get_bit_range): Add OFFSET parameter and adjust BITPOS.
        Change type of BITOFFSET to signed.  Make sure the lower bound of
        the computed range is non-negative by adjusting OFFSET and BITPOS.
        (expand_assignment): Adjust call to get_bit_range.

        2012-03-27  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (get_bit_range): Return the null range if the enclosing record
        is part of a larger bit field.

        2012-03-20  Richard Guenther  <rguenther@suse.de>

        * stor-layout.c (finish_bitfield_representative): Fallback
        to conservative maximum size if the padding up to the next
        field cannot be computed as a constant.
        (finish_bitfield_layout): If we cannot compute the distance
        between the start of the bitfield representative and the
        bitfield member start a new representative.
        * expr.c (get_bit_range): The distance between the start of
        the bitfield representative and the bitfield member is zero
        if the field offsets are not constants.

        2012-03-16  Richard Guenther  <rguenther@suse.de>

        * stor-layout.c (finish_bitfield_representative): Fall back
        to the conservative maximum size if we cannot compute the
        size of the tail padding.

        2012-03-14  Richard Guenther  <rguenther@suse.de>

        * tree.h (DECL_BIT_FIELD_REPRESENTATIVE): New define.
        * stor-layout.c (start_bitfield_representative): New function.
        (finish_bitfield_representative): Likewise.
        (finish_bitfield_layout): Likewise.
        (finish_record_layout): Call finish_bitfield_layout.
        * tree.c (free_lang_data_in_decl): Only free DECL_QUALIFIER
        for QUAL_UNION_TYPE fields.
        * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
        Stream DECL_BIT_FIELD_REPRESENTATIVE.
        * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.

        PR middle-end/52080
        PR middle-end/52097
        PR middle-end/48124
        * expr.c (get_bit_range): Unconditionally extract bitrange
        from DECL_BIT_FIELD_REPRESENTATIVE.
        (expand_assignment): Adjust call to get_bit_range.

2012-06-01  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/53501
        * fold-const.c (fold_binary_loc): Refine previous change.

2012-06-01  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline
        2012-03-27  Chung-Lin Tang  <cltang@codesourcery.com>

        PR target/52667
        * config/sh/sh.c (find_barrier): Add equality check of last_got to
        avoid going above orig insn.  Update comments.

2012-06-01  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline
        2012-03-21  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/52642
        * config/sh/sh.c (sh_expand_prologue): Emit blockage at the end of
        prologue for unwinder and profiler.

2012-06-01  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline
        2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.md (abssi2): Add TARGET_SH1 condition.

2012-06-01  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline
        2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_dwarf_register_span): Don't apply
        DBX_REGISTER_NUMBER.

2012-06-01  Oleg Endo  <olegendo@gcc.gnu.org>

        Backport from mainline
        2012-03-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (shiftcosts): Return MAX_COST when the first
        operand is CONST_INT.  Take COSTS_N_INSNS into account.
        (sh_rtx_costs): Don't apply COSTS_N_INSNS to the return value of
        shiftcosts.     

2012-05-31  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.opt (-msp8): Document it.
        * doc/invoke.texi (AVR Options): Copy from trunk docu.

2012-05-31  Richard Guenther  <rguenther@suse.de>

        PR middle-end/48493
        * expr.c (expand_assignment): Do not use movmisalign on
        non-memory.

2012-05-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/52999
        * config/pa/pa.c (TARGET_SECTION_TYPE_FLAGS): Define.
        (pa_section_type_flags): New.
        (pa_legitimate_constant_p): Revert previous change.

2012-05-30  Aldy Hernandez  <aldyh@redhat.com>

        Backport from mainline
        2012-05-25  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/53008
        * trans-mem.c (ipa_tm_create_version_alias): Output new_node if
        accessed indirectly.
        (ipa_tm_create_version): Same.

2012-05-30  Jason Merrill  <jason@redhat.com>

        PR c++/53220
        * c-typeck.c (array_to_pointer_conversion): Give -Wc++-compat warning
        about array compound literals.

2012-05-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53501
        * fold-const.c (fold_binary_loc): Make sure to call
        fold_plusminus_mult_expr with the original sign of operands.

2012-05-30  Eric Botcazou  <ebotcazou@adacore.com>

        * explow.c (probe_stack_range): Restore simple control flow and stop
        again when the probe cannot be generated if HAVE_check_stack.

2012-05-30  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/53519
        * combine.c (simplify_shift_const_1) <case NOT>: Use constm1_rtx
        instead of GEN_INT (GET_MODE_MASK (mode)) as second operand of XOR.

2012-05-29  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53516
        * tree-data-ref.c (stmt_with_adjacent_zero_store_dr_p): Reject
        bitfield accesses.
        * tree-vect-data-refs.c (vect_analyze_data_refs): Likewise.

2012-05-28  Bill Schmidt  <wschmidt@linux.ibm.com>

        Backport from mainline
        2012-05-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53438
        * tree-sra.c (analyze_access_subtree): Correct bitfield exclusion.

2012-05-26  Eric Botcazou  <ebotcazou@adacore.com>

        Backport from mainline
        2012-03-10  Chung-Lin Tang  <cltang@codesourcery.com>

        PR rtl-optimization/52528
        * combine.c (can_combine_p): Add setting of subst_low_luid
        before call to expand_field_assignment().

2012-05-26  Martin Jambor  <mjambor@suse.cz>

        Backport from mainline
        2012-05-23  Martin Jambor  <mjambor@suse.cz>

        * ipa-inline-analysis.c (inline_merge_summary): Free operand_map.

2012-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR lto/52178
        * tree-inline.c (remap_gimple_op_r): Fix handling of FIELD_DECL.
        * tree.c (RETURN_TRUE_IF_VAR): Do not return true for PLACEHOLDER_EXPR.

2012-05-25  Alexander Ivchenko  <alexander.ivchenko@intel.com>

        PR target/53435
        * config/i386/i386.c (ix86_expand_vec_perm): Use correct op.
        (ix86_expand_vec_perm): Use int mode instead of float.

2012-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/52362
        * config.gcc (i[34567]86-*-mingw* | x86_64-*-mingw*): Set gas and
        gnu_ld variables to yes.
        * configure.ac (HAVE_GNU_LD): Move to after config.gcc inclusion.
        (HAVE_GNU_AS): Likewise.
        * config.in: Regenerate.
        * configure: Likewise.

2012-05-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        Backport from mainline
        2012-03-12  Richard Guenther  <rguenther@suse.de>
        * config/arm/arm.c (neon_dereference_pointer): Do not call
        covert during RTL expansion.

2012-05-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        Backport from mainline
        2012-05-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR target/53385
        * config/rs6000/rs6000.c (print_operand): Revise code that unsafely
        relied on signed overflow behavior.

2012-05-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/53460
        * tree-profile.c (tree_profiling): Cleanup the CFG if
        execute_fixup_cfg requests it.

2012-05-24  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53465
        * tree-vrp.c (extract_range_from_cond_expr): First copy_value_range
        vr0 into *vr, then vrp_meet that.
        (vrp_meet): If one vr type is VR_UNDEFINED, ensure the result doesn't
        have any equivalences.
        (vrp_visit_phi_node): Call copy_value_range instead of vrp_meet the
        first time.

2012-05-23  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.c (gimple_types_compatible_p_1) <ARRAY_TYPE>: Remove bogus
        size handling.
        (gimple_canonical_types_compatible_p) <ARRAY_TYPE>: Likewise.
        (iterative_hash_gimple_type): Adjust comment.
        (iterative_hash_canonical_type): Likewise.  Hash the bounds of the
        domain for an array type instead of the domain type itself.

2012-05-23  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-05-23 mainline r187803

        PR target/53448
        * config/avr/avr.h (ASM_OUTPUT_ALIGN): Don't inhibit .p2align 1.
        * config/avr/elf.h (ASM_OUTPUT_BEFORE_CASE_LABEL): Use
        ASM_OUTPUT_ALIGN.

2012-05-23  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>

        Backport from 2012-05-03 mainline r187075

        * config/i386/driver-i386.c (host_detect_local_cpu): Reset
        has_fma4 for AMD processors with both fma3 and fma4 support.

2012-05-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53408
        * tree-vect-loop.c (vectorizable_induction): Properly check
        the restriction that we cannot handle induction results from
        the inner loop outside of the outer loop.

2012-05-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53436
        * omp-low.c (omp_build_component_ref): New function.
        (build_receiver_ref, build_sender_ref, create_task_copyfn): Use it.

        PR tree-optimization/53366
        * tree-vect-slp.c (vect_supported_load_permutation_p): Don't shortcut
        tests if complex_numbers == 2, but there are non-complex number loads
        too.

        PR tree-optimization/53409
        * tree-vect-loop.c (vect_analyze_loop_operations): Don't check
        vinfo_for_stmt (op_def_stmt) if op_def_stmt isn't inside loop.

        PR tree-optimization/53410
        * fold-const.c (fold_binary_loc): Use build_zero_cst (type)
        instead of build_int_cst (type, 0) where vector types might be
        involved.

2012-05-21  Joseph Myers  <joseph@codesourcery.com>

        PR c/53418
        * c-typeck.c (build_conditional_expr): Remove C_MAYBE_CONST_EXPR
        from folded operands before wrapping another around the
        conditional expression.

2012-05-21  Dave Boutcher  <daveboutcher@gmail.com>
            Patrick Marlier  <patrick.marlier@gmail.com>

        * trans-mem.c (ipa_tm_transform_clone): Transform functions with
        indirect calls.

2012-05-21  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline
        2012-05-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/53416
        * config/i386/i386.md (UNSPEC_RDRAND): Renamed to ...
        (UNSPECV_RDRAND): This.
        (rdrand<mode>_1): Updated.

2012-05-20  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline
        2012-05-20  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Support
        RDRND, F16C and FSGSBASE.

2012-05-19  Eric Botcazou  <ebotcazou@adacore.com>

        Backport from mainline
        2012-05-14  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-pre.c (can_value_number_call): Delete.
        (compute_avail): Skip all statements with side effects.
        <GIMPLE_CALL>: Skip calls to internal functions.

2012-05-18  David S. Miller  <davem@davemloft.net>

        Backport r185385 from mainline
        2012-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52584
        * tree-vect-generic.c (type_for_widest_vector_mode): Take
        element type instead of mode, use build_vector_type_for_mode
        instead of the langhook, build a vector of proper signedness.
        (expand_vector_operations_1): Adjust.

2012-05-18  Olivier Hainque  <hainque@adacore.com>

        * Makefile.in (FLAGS_TO_PASS): Pass $(libexecsubdir) instead of
        $(libsubdir) as libexecsubdir.

2012-05-16  Andrew Pinski  <apinski@cavium.com>

        * gimple-fold.c (get_maxval_strlen): Move COND_EXPR handling under
        GIMPLE_ASSIGN.

2012-05-16  David S. Miller  <davem@davemloft.net>

        * jump.c (delete_related_insns): If we remove a CALL, make sure
        we delete it's NOTE_INSN_CALL_ARG_LOCATION note too.

2012-05-16  Richard Henderson  <rth@redhat.com>

        PR debug/52727
        * combine-stack-adj.c (prev_active_insn_bb): New.
        (next_active_insn_bb): New.
        (force_move_args_size_note): New.
        (combine_stack_adjustments_for_block): Use it.

2012-05-16  Olivier Hainque  <hainque@adacore.com>

        * Makefile.in (install-no-fixedincludes): New target, former toplevel
        gcc-no-fixedincludes. Stash "include-fixed" in addition to "include".
        Add comments and improve stamp preservation across the whole sequence.
        (stmp-int-hdrs): Use move-if-change + cp -p to setup fix_dir/limits.h.

2012-05-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53364
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Properly
        detect a view-conversion of the decl.

2012-05-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/53358
        * config/i386/i386.md (*addqi_2 peephole with QImode addition): Check
        that operands[2] is either immediate, or q_regs_operand.

2012-05-15  Bin Cheng  <bin.cheng@arm.com>

        Backport r187139 from mainline.
        2012-05-04  Bin Cheng  <bin.cheng@arm.com>

        PR rtl-optimization/52804
        * reload1.c (reload_reg_reaches_end_p): Check whether successor
        reload with type RELOAD_FOR_INPUT_ADDRESS kills reload register
        of current one with type RELOAD_FOR_INPADDR_ADDRESS.
        Same stands for reloads with type RELOAD_FOR_OUTPUT_ADDRESS and
        RELOAD_FOR_OUTADDR_ADDRESS.

2012-05-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46098
        * config/i386/i386.c (ix86_expand_special_args_builtin): Always
        generate target register for "load" class builtins.

        Revert:
        2010-10-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/46098
        * config/i386/sse.md (*avx_movu<ssemodesuffix><avxmodesuffix>):
        Rename from avx_movu<ssemodesuffix><avxmodesuffix>.
        (avx_movu<ssemodesuffix><avxmodesuffix>): New expander.
        (*<sse>_movu<ssemodesuffix>): Rename from <sse>_movu<ssemodesuffix>.
        (<sse>_movu<ssemodesuffix>): New expander.
        (*avx_movdqu<avxmodesuffix>): Rename from avx_movdqu<avxmodesuffix>.
        (avx_movdqu<avxmodesuffix>): New expander.
        (*sse2_movdqu): Rename from sse2_movdqu.
        (sse2_movdqu): New expander.

2012-05-14  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (dwarf2out_define, dwarf2out_undef): Treat
        lineno 1 the same as lineno 0 before first start file directive.
        (optimize_macinfo_range): Likewise.

        * dwarf2out.c (have_macinfo): Define.
        (dwarf2out_finish): Don't emit DW_AT_GNU_macros or DW_AT_macro_info
        attribute, don't force empty compilation unit and don't emit any
        .debug_macinfo/.debug_macro section if macinfo_table is empty.

2012-05-13  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-05-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_emit_conditional_branch): Handle
        ORDERED and UNORDERED conditions.

2012-05-12  Eric Botcazou  <ebotcazou@adacore.com>

        * function.c (requires_stack_frame_p): If the function can throw
        non-call exceptions, return true if the insn can throw internally.

2012-05-10  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_decl_expr): For a TYPE_DECL, also gimplify the
        DECL_ORIGINAL_TYPE if it is present.

2012-05-09  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-05-12 mainline r187342.

        PR target/53256
        * config/avr/elf.h (ASM_DECLARE_FUNCTION_NAME): Remove.
        * config/avr/avr-protos.h (avr_asm_declare_function_name): Remove.
        * config/avr/avr.h (struct machine_function): Add attributes_checked_p.
        * config/avr/avr.c (avr_asm_declare_function_name): Remove.
        (expand_prologue): Move initialization of cfun->machine->is_naked,
        is_interrupt, is_signal, is_OS_task, is_OS_main from here to...
        (avr_set_current_function): ...this new static function.
        (TARGET_SET_CURRENT_FUNCTION): New define.
        (avr_function_ok_for_sibcall): Use cfun->machine->is_* instead of
        checking attributes of current_function_decl.
        (avr_regs_to_save): Ditto.
        (signal_function_p): Rename to avr_signal_function_p.
        (interrupt_function_p): Rename to avr_interrupt_function_p.

        * doc/extend.texi (Function Attributes): Better explanation of
        'interrupt' and 'signal' for AVR. Move 'ifunc' down to establish
        alphabetical order.

2012-05-09  Matthias Klose  <doko@ubuntu.com>

        * gcc-ar.c (main): Don't check for execute bits for the plugin.

2012-05-08  Hans-Peter Nilsson  <hp@axis.com>

        PR target/53272
        * config/cris/cris.c (cris_normal_notice_update_cc): For TARGET_V32,
        when a constant source operand matches an "I" constraint, the "no
        CC0 change" applies to a register-destination only, not a
        strict_low_part-destination.

2012-05-07  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        Backport from mainline:
        2012-04-19  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config/arm/sync.md (sync_optab): Change ior attribute to "or".

2012-05-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53239
        * tree-vrp.c (get_value_range): Set VR of
        SSA_NAME_IS_DEFAULT_DEF of DECL_BY_REFERENCE RESULT_DECL
        to nonnull.

2012-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53195
        * tree-inline.c (setup_one_parameter): Properly add referenced
        vars from the parameters new known value.

2012-05-06  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        Backport from mainline:
        2012-04-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/52999
        * config/pa/pa.c (pa_legitimate_constant_p): Don't put function labels
        in constant pool.

2012-05-04  Ian Lance Taylor  <iant@google.com>

        * tree-vect-patterns.c (vect_single_imm_use): Correct return
        values from false to NULL.

2012-05-04  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-05-04  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53228
        * config/i386/i386.h (X86_ARCH_CMOV): Rename from X86_ARCH_CMOVE.
        (TARGET_CMOV): Rename from TARGET_CMOVE.
        (TARGET_CMOVE): New define.
        * config/i386/i386.c (ix86_option_override_internal): Use TARGET_CMOV.
        Do not set TARGET_CMOVE here.

2012-05-04  Ulrich Weigand  <ulrich.weigand@linaro.org>

        Backport from mainline:

        2012-05-04  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR tree-optimization/52633
        * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Swap order of
        vect_recog_widen_shift_pattern and vect_recog_over_widening_pattern.
        (vect_recog_over_widening_pattern): Remove handling of code that was
        already detected as over-widening pattern.  Remove special handling
        of "unsigned" cases.  Instead, support general case of conversion
        of the shift result to another type.

        2012-05-04  Ulrich Weigand  <ulrich.weigand@linaro.org>

        * tree-vect-patterns.c (vect_single_imm_use): New function.
        (vect_recog_widen_mult_pattern): Use it instead of open-coding loop.
        (vect_recog_over_widening_pattern): Likewise.
        (vect_recog_widen_shift_pattern): Likewise.

        2012-04-10  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR tree-optimization/52870
        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Verify that
        presumed pattern statement is within the same loop or basic block.

2012-05-04  Richard Guenther  <rguenther@suse.de>

        * common.opt (flto-report): Do not mark as Optimization.

2012-05-04  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/48496
        * recog.c (constrain_operands): If extra constraints are present, also
        accept pseudo-registers with equivalent memory locations during reload.

2012-05-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from the mainline
        2012-05-03  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/53199
        * config/rs6000/rs6000.md (bswapdi splitters): If
        -mavoid-indexed-addresses (or -mcpu=power6 which sets it by
        default) is used, generate an alternate sequence that does not
        depend on using indexed addressing.

2012-05-03  David S. Miller  <davem@davemloft.net>

        PR target/52684
        * config/sparc/sparc.c (emit_soft_tfmode_libcall): If we pass a
        MEM directly into a libcall, mark it's MEM_EXPR as addressable.
        (sparc_emit_float_lib_cmp): Likewise.

2012-05-04  Martin Jambor  <mjambor@suse.cz>

        Backport from mainline
        2012-05-02  Martin Jambor  <mjambor@suse.cz>

        PR lto/52605
        * dwarf2out.c (dwarf2out_decl): Only lookup die representing context
        of a variable when the contect is a function.

2012-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR plugins/53126
        * gcc-ar.c (main): If GCC_EXEC_PREFIX is set in env,
        append program name to it and pass that as first argument
        to make_relative_prefix.  Always pass standard_libexec_prefix
        as last argument to make_relative_prefix.  If
        make_relative_prefix returns NULL, fall back to
        standard_libexec_prefix.

        PR debug/53174
        * tree-predcom.c (remove_stmt): Call reset_debug_uses on stmts being
        removed.

        PR target/53187
        * config/arm/arm.c (arm_select_cc_mode): If x has MODE_CC class
        mode, return that mode.

2012-05-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53144
        * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_constant_for_pieces):
        Rename to ...
        (vn_reference_lookup_or_insert_for_pieces): ... this.  Properly deal
        with SSA name values.
        (vn_reference_lookup_3): Adjust callers.

2012-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/53163
        * tree-ssa-phiopt.c (cond_if_else_store_replacement): Don't ignore
        return value from compute_all_dependences.

        PR rtl-optimization/53160
        * ree.c (combine_reaching_defs): Handle the case where cand->insn
        has been modified by ree pass already.

2012-05-01  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-04-30  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/53136
        * ipa-prop.c (ipa_print_node_jump_functions): Wrap multiple
        calls to cgraph_node_name in xstrdup.
        (ipa_make_edge_direct_to_target): Ditto.
        * tree-sra.c (convert_callers_for_node): Ditto.
        * lto-symtab.c (lto_cgraph_replace_node): Ditto.
        * ipa-cp.c (perhaps_add_new_callers): Ditto.
        * cgraphunit.c (cgraph_redirect_edge_call_stmt_to_callee): Ditto.
        (cgraph_materialize_all_clones): Ditto.
        * ipa-inline.c (report_inline_failed_reason): Ditto.
        (want_early_inline_function_p): Ditto.
        (edge_badness): Ditto.
        (update_edge_key): Ditto.
        (flatten_function): Ditto.
        (ipa_inline): Ditto.
        (inline_always_inline_functions): Ditto.
        (early_inline_small_functions): Ditto.

2012-04-30  Andreas Tobler  <andreast@fgznet.ch>

        Backport from mainline
        2012-03-21  Andreas Tobler  <andreast@fgznet.ch>

        * configure.ac (HAVE_LD_NO_DOT_SYMBOLS): Add powerpc64-*-freebsd*.
        Introduce emul_name to select the right linker emulation for
        powerpc64-*-freebsd*.
        * configure: Regenerate.
        * config.gcc: Add bits to support powerpc64-*-freebsd*.
        * config/rs6000/freebsd.h (POWERPC_FREEBSD): Define.
        * config/rs6000/freebsd64.h: New file.
        * config/rs6000/rs6000.c (rs6000_option_override_internal): Use
        POWERPC_FREEBSD.
        (rs6000_savres_strategy): Likewise.
        (rs6000_savres_routine_name): Likewise.
        (rs6000_elf_file_end): Likewise.
        * config/rs6000/t-freebsd64: New file.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set the
        rs6000_current_abi for 64-bit FreeBSD to ABI_AIX.

2012-04-30  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-04-27  Paolo Bonzini  <bonzini@gnu.org>

        PR target/53138
        * config/i386/i386.md (x86_mov<mode>cc_0_m1_neg): Add clobber.

2012-04-30  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (ix86_handle_struct_attribute): Use the proper
        predicate to discriminate types.

2012-04-27  Richard Guenther  <rguenther@suse.de>

        PR c/51527
        * convert.c (convert_to_integer): Avoid infinite recursion for
        target-defined built-in types.

2012-04-26  Hans-Peter Nilsson  <hp@axis.com>

        PR target/53120
        * config/cris/cris.md ("*andhi_lowpart_v32")
        ("*andqi_lowpart_v32"): Change first input-only operand from
        a (match_operand ...) to (match_dup 0).  Drop alternatives with
        const_int-matching constraints for redundancy.
        ("*andhi_lowpart_non_v32", "*andqi_lowpart_non_v32"): Ditto.  Drop
        three-operand alternative.

2012-04-26  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-04-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*add<mode>_2): Add r/r/0 alternative.
        (*addsi_2_zext): Ditto.
        (*add<mode>_3): Ditto.
        (*addsi_3_zext): Ditto.
        (*add<mode>_5): Ditto.

2012-04-25  Jakub Jelinek  <jakub@redhat.com>

        PR c/52880
        * c-typeck.c (set_nonincremental_init,
        set_nonincremental_init_from_string): Pass true instead of false
        as IMPLICIT to add_pending_init.

2012-04-24  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-04-24 mainline r186768.

        PR target/53065
        * config/avr/avr.h (HARD_REGNO_CALL_PART_CLOBBERED): New hook define.

2012-04-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/53085
        * tree-ssa-pre.c (eliminate): Do not eliminate volatile redundant
        stores.

2012-04-24  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/53084
        * varasm.c (compute_reloc_for_constant): Handle ADDR_EXPR
        of MEM_REF.
        (output_addressed_constants): Likewise.

        PR middle-end/52999
        * varasm.c (get_section): Don't ICE for section conflicts with
        built-in section kinds.

2012-04-23  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/sync.md (fetchop_name): Change ior attribute to "or".

2012-04-23  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Named Address Spaces): Fix typos.

2012-04-23  Richard Guenther  <rguenther@suse.de>

        PR c/53060
        * c-typeck.c (build_binary_op): Fix typo.

2012-04-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimizations/52891
        * tree-vect-patterns.c (adjust_bool_pattern): Use
        build_nonstandard_type even if rhs1 has unsigned INTEGER_TYPE,
        but with non-standard precision.

2012-04-22  Ian Lance Taylor  <iant@google.com>

        * godump.c (go_output_typedef): Dump size of structs.

2012-04-20  Ulrich Weigand  <ulrich.weigand@linaro.org>

        Backport from mainline:

        * config/arm/arm.c (arm_print_operand): Fix invalid alignment
        hints for 'A' operand types.

2012-04-19  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-04-19 mainline r186588.

        PR target/53033
        * config/avr/avr.c (avr_out_load_psi): Fix assembler template for
        the case *(X+const).

2012-04-18  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/sync.md (fetchop_name): Change ior attribute to "or".

2012-04-17  Uros Bizjak  <ubizjak@gmail.com>

        PR target/53020
        * config/i386/sync.md (atomic_<code><mode>): Rename to
        atomic_<logic><mode>.

2012-04-16  Uros Bizjak  <ubizjak@gmail.com>

        Backport from mainline
        2012-04-12  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52932
        * config/i386/avx2intrin.h (_mm256_permutevar8x32_ps): Change second
        argument type to __m256i.  Update call to __builtin_ia32_permvarsf256.
        * config/i386/sse.md (avx2_permvarv8sf): Change operand 1 to V8SI.
        (avx2_permvarv8sf, avx2_permvarv8si): Switch operands 1 and 2.
        * config/i386/i386.c (bdesc_args) <__builtin_ia32_permvarsf256>:
        Update builtin type to V8SF_FTYPE_V8SF_V8SI.
        (ix86_expand_vec_perm): Update calls to gen_avx2_permvarv8si and
        gen_avx2_permvarv8sf.

2012-04-16  Martin Jambor  <mjambor@suse.cz>

        Backported from mainline

        2012-04-13  Martin Jambor  <mjambor@suse.cz>
        PR middle-end/52939

        * gimple-fold.c (gimple_get_virt_method_for_binfo): Bail out if
        fold_ctor_reference returns a zero constant.

2012-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        Backported from mainline
        2012-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-c.c (ix86_target_macros): Define _ILP32
        and __ILP32__ for x32.

2012-04-13  Tom de Vries  <tom@codesourcery.com>

        Backport from mainline r186418.

        2012-04-13  Tom de Vries  <tom@codesourcery.com>

        * tree-ssa-tail-merge.c (gsi_advance_bw_nondebug_nonlocal): Add
        parameters vuse and vuse_escaped.
        (find_duplicate): Init vuse1, vuse2 and vuse_escaped.  Pass to
        gsi_advance_bw_nondebug_nonlocal.  Return if vuse_escaped and
        vuse1 != vuse2.

2012-04-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52969
        * tree-if-conv.c (predicate_mem_writes): Properly gimplify
        the condition for the COND_EXPR and handle predicate negation
        by swapping the COND_EXPR arms.

2012-04-13  Richard Guenther  <rguenther@suse.de>

        PR c/52862
        * convert.c (convert_to_pointer): Remove special-casing of
        zero.

2012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from mainline
        2012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/52775
        * config/rs6000/rs6000.h (TARGET_FCFID): Add TARGET_PPC_GPOPT to
        the list of options to enable the FCFID instruction.
        (TARGET_EXTRA_BUILTINS): Adjust comment.

2012-04-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52943
        * tree-chrec.h (chrec_is_positive): Remove.
        * tree-scalar-evolution.c (chrec_is_positive): Move ...
        * tree-data-ref.c (chrec_is_positive): ... here.  Make static.
        Return false for a constant zero instead of negative.
        (analyze_siv_subscript_cst_affine): Handle zero difference
        in the initial condition explicitely.

2012-04-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/52894
        * varasm.c (process_pending_assemble_externals): Set
        pending_assemble_externals_processed true.
        (assemble_external): Call assemble_external_real if the pending
        assemble externals have been processed.

2012-04-09  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/52717
        * config/sparc/sparc.c (sparc_file_end): Set TREE_PUBLIC explicitly on
        the DECL generated for the special GOT helper.

2012-04-06  Walter Lee  <walt@tilera.com>

        Backport from mainline
        2012-03-07  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (tilegx_expand_prologue): Don't generate
        REG_CFA_* notes for the stack pointer.
        (tilegx_expand_epilogue): Restore stack pointer by adjusting it by
        EH_RETURN_STACKADJ_RTX.
        * config/tilepro/tilepro.c (tilepro_expand_prologue): Don't
        generate REG_CFA_* notes for the stack pointer.
        (tilepro_expand_epilogue): Restore stack pointer by adjusting it
        by EH_RETURN_STACKADJ_RTX.

2012-04-06  Matt Turner  <mattst88@gmail.com>

        * doc/install.texi: Correct typo "-mno-lsc" -> "-mno-llsc".

2012-04-06  Eric Botcazou  <ebotcazou@adacore.com>

        * config/ia64/ia64.c (ia64_load_pair_ok): Return 0 if the second member
        of the destination isn't also a FP_REGS register.

2012-04-03  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-03-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52406
        * tree-data-ref.h: Update documentation about DR_BASE_OBJECT.
        (struct indices): Add unconstrained_base member.
        (struct dr_alias): Remove unused vops member.
        (DR_UNCONSTRAINED_BASE): New define.
        * tree-data-ref.c (dr_analyze_indices): For COMPONENT_REFs
        add indices to allow their disambiguation.  Make DR_BASE_OBJECT
        be an artificial access that covers the whole indexed object,
        or mark it with DR_UNCONSTRAINED_BASE if we cannot do so.  Canonicalize
        plain decl base-objects to their MEM_REF variant.
        (dr_may_alias_p): When the base-object of either data reference
        has unknown size use only points-to information.
        (compute_affine_dependence): Make dumps easier to read and
        more verbose.
        * tree-vect-data-ref.c (vector_alignment_reachable_p): Use
        DR_REF when looking for packed references.
        (vect_supportable_dr_alignment): Likewise.

2012-04-03  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52580
        * tree-data-ref.c (subscript_dependence_tester_1): Check
        all dimensions for non-conflicting access functions.

2012-04-03  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2012-03-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52493
        * tree-ssa-alias.c (ptr_derefs_may_alias_p): Robustify.

        2012-03-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52678
        * tree-vectorizer.h (struct _stmt_vec_info): Add
        loop_phi_evolution_part member.
        (STMT_VINFO_LOOP_PHI_EVOLUTION_PART): New define.
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Initialize
        STMT_VINFO_LOOP_PHI_EVOLUTION_PART.
        * tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer):
        Use the cached evolution part and the PHI nodes value from
        the loop preheader edge instead of re-analyzing the evolution.

        2012-03-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52701
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Always
        compute and set the evolution part of PHI nodes.

        2012-03-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52754
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Only
        propagate arbitrary addresses into really plain dereferences.

2012-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52835
        * tree-data-ref.c (build_rdg): Return NULL if
        compute_data_dependences_for_loop failed.

2012-03-31  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (call_can_make_abnormal_goto): New predicate.
        (stmt_can_make_abnormal_goto): Use it.
        (is_ctrl_altering_stmt): Likewise.

2012-03-31  Martin Jambor  <mjambor@suse.cz>

        Backported from mainline
        2012-03-30  Martin Jambor  <mjambor@suse.cz>

        * tree-ssa-ccp.c (insert_clobbers_for_var): Do not assert that there
        is a builtin_stack_save in a dominating BB.

2012-03-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (avx_h<plusminus_insn>v4df3): Fix results
        crossing 128bit lane boundary.

2012-03-29  Uros Bizjak  <ubizjak@gmail.com>

        Backported from mainline
        2012-03-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52698
        * config/i386/i386-protos.h (ix86_legitimize_reload_address):
        New prototype.
        * config/i386/i386.h (LEGITIMIZE_RELOAD_ADDRESS): New define.
        * config/i386/i386.c: Include reload.h.
        (ix86_legitimize_reload_address): New function.

2012-03-28  Martin Jambor  <mjambor@suse.cz>

        Backported from mainline
        2012-03-27  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/52693
        * tree-sra.c (sra_modify_assign): Do not call
        load_assign_lhs_subreplacements when working with an unscalarizable
        region.

2012-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52691
        * tree-ssa-ccp.c (optimize_stdarg_builtin): Optimize
        __builtin_va_start to __builtin_next_arg if the latter is
        builtin_decl_explicit_p rather than when it is not.

        PR middle-end/52750
        * tree-vect-generic.c (vector_element): Perform multiplication
        for pos in bitsizetype type instead of idx type.

2012-03-28  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-03-28 mainline r185910.

        PR target/52692
        * config/avr/avr.c (TARGET_BUILTIN_DECL): New define.
        (avr_builtin_decl): New static function.
        (struct avr_builtin_description, avr_bdesc): Move up.
        Add GTY marker. Add field fndecl. Remove redundant field id.
        (avr_init_builtins): Initialize avr_bdesc[ID].fndecl.
        (avr_expand_builtin): Code cleanup because .id is removed.

2012-03-28  Aurelien Buhrig  <aurelien.buhrig.gcc@gmail.com>

        PR middle-end/51893
        * expmed.c (store_bit_field_1): Fix wordnum value for big-endian
        targets.

2012-03-28  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-03-28 mainline r185907.

        PR target/52737
        * config.gcc (tm_file): Remove avr/multilib.h.

        * doc/invoke.texi (AVR Options): Adjust
        documentation of -mtiny-stack.

        * config/avr/genmultilib.awk: Remove code to generate multilib.h.
        (BEGIN): Use -msp8 as multilib option instead of -mtiny-stack.
        * config/avr/t-avr: Remove generation of multilib.h.
        * config/avr/t-multilib: Regenerate.
        * config/avr/multilib.h: Remove.
        * config/avr/avr.opt (-msp8): New option.
        (avr_sp8): New variable.
        * config/avr/driver-avr.c (avr_device_to_sp8): New function.
        * config/avr/avr.h (AVR_HAVE_SPH): New define.
        (AVR_HAVE_8BIT_SP): Also set by avr_sp8 i.e. -msp8.
        (avr_device_to_sp8): New prototype.
        (EXTRA_SPEC_FUNCTIONS): Add { "device_to_sp8", avr_device_to_sp8 }
        (DRIVER_SELF_SPECS): New define.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
        __AVR_SP8__, __AVR_HAVE_SPH__.
        * config/avr/avr.c (output_movhi): Use AVR_HAVE_SPH instead of
        AVR_HAVE_8BIT_SP to decide if SP_H is present.
        (avr_file_start): Ditto.

2012-03-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/52736
        * config/i386/sse.md (sse2_loadlpd splitter): Use offset 0
        instead of 8 in adjust_address.

2012-03-27  Eric Botcazou  <ebotcazou@adacore.com>

        * expmed.c (store_bit_field): Assert that BITREGION_START is a multiple
        of a unit before computing the offset in units.

2012-03-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52720
        * fold-const.c (try_move_mult_to_index): Handle &x.array more
        explicitely.

2012-03-24  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/52610
        * config/sparc/sparc.h (ASM_CPU_SPEC): Pass -Av8 if -mcpu=leon.

2012-03-24  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/52640
        * varasm.c: Include pointer-set.h.
        (pending_assemble_externals_set): New pointer set.
        (process_pending_assemble_externals): Destroy the pointer set.
        (assemble_external): See if decl is in pending_assemble_externals_set,
        and add it to pending_assemble_externals if necessary.
        (init_varasm_once): Allocate pending_assemble_externals_set.

2012-03-23  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backported from mainline
        2012-03-06  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/50310
        * config/rs6000/vector.md (vector_uneq<mode>): Add support for
        UNEQ, LTGT, ORDERED, and UNORDERED IEEE vector comparisons.
        (vector_ltgt<mode>): Likewise.
        (vector_ordered<mode>): Likewise.
        (vector_unordered<mode>): Likewise.
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare_inner): Likewise.

2012-03-23  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.c (epiphany_function_value_regno_p):
        Make static.

2012-03-22  Kaz Kojima  <kkojima@gcc.gnu.org>

        Backported from mainline
        2012-03-02  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/48596
        PR target/48806
        * config/sh/sh.c (sh_register_move_cost): Increase cost between
        GENERAL_REGS and FP_REGS for SImode.

2012-03-22  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52547
        * tree-nested.c (convert_tramp_reference_stmt): Call declare_vars
        on any new_local_var_chain vars declared during recursing on
        GIMPLE_OMP_PARALLEL or GIMPLE_OMP_TASK body.

2012-03-22  Georg-Johann Lay  <avr@gjlay.de>

        Backport from 2012-03-22 mainline r185692.

        PR target/52496
        * config/avr/avr.md (unspec): Remove UNSPEC_MEMORY_BARRIER.
        (unspecv): Add UNSPECV_MEMORY_BARRIER.
        (cli_sei): Use unspec_volatile instead of unspec for memory barrier.
        (delay_cycles_1, delay_cycles_2): Ditto.
        (delay_cycles_3, delay_cycles_4): Ditto.
        (nopv, *nopv): Ditto.
        (sleep, *sleep): Ditto.
        (wdr, *wdr): Ditto.

        Backport from 2012-03-21 mainline r185605.

        PR rtl-optimization/52543
        PR target/52461
        * config/avr/avr-protos.h (avr_load_lpm): New prototype.
        * config/avr/avr.c (avr_mode_dependent_address_p): New function.
        (TARGET_MODE_DEPENDENT_ADDRESS_P): New define.
        (avr_load_libgcc_p): Restrict to __flash loads.
        (avr_out_lpm): Only handle 1-byte loads from __flash.
        (avr_load_lpm): New function.
        (avr_find_unused_d_reg): Remove.
        (avr_out_lpm_no_lpmx): Remove.
        (adjust_insn_length): Handle ADJUST_LEN_LOAD_LPM.
        * config/avr/avr.md (unspec): Add UNSPEC_LPM.
        (load_<mode>_libgcc): Use UNSPEC_LPM instead of MEM.
        (load_<mode>, load_<mode>_clobber): New insns.
        (mov<mode>): For multi-byte move from non-generic
        16-bit address spaces: Expand to load_<mode> resp.
        load_<mode>_clobber.
        (load<mode>_libgcc): Remove expander.
        (split-lpmx): Remove split.

        Backport from 2012-03-13 mainline r185329.

        PR target/52488
        * config/avr/avr.c (avr_prologue_setup_frame): Cut down stack
        offset (size) to a value the insns can deal with.
        (expand_epilogue): Ditto.

        Backport from 2012-03-12 mainline r185256.

        PR target/52499
        * config/avr/avr.c (avr_mode_code_base_reg_class): Change return
        type from reg_class_t to enum reg_class.
        * config/avr/avr-protos.h (avr_mode_code_base_reg_class): Ditto.

        Backport from 2012-03-12 mainline r185253.

        PR target/52148
        * config/avr/avr.c (avr_out_movmem): Fix typo in output template
        for the case ADDR_SPACE_FLASH and AVR_HAVE_LPMX introduced in
        r184615 from 2012-02-28.

        Backport from 2012-03-08 mainline r185105.

        * config/avr/avr.md (*addhi3, addhi3_clobber): Add "w" alternative
        for constants in [-63,63].

        Backport from 2012-03-08 mainline r185100.

        PR target/52496
        * config/avr/avr.c (avr_mem_clobber): New static function.
        (avr_expand_delay_cycles): Add memory clobber operand to
        delay_cycles_1, delay_cycles_2, delay_cycles_3, delay_cycles_4.
        * config/avr/avr.md (unspec): Add UNSPEC_MEMORY_BARRIER.
        (enable_interrupt, disable_interrupt): New expander.
        (nopv, sleep, wdr): New expanders.
        (delay_cycles_1): Add memory clobber.
        (delay_cycles_2): Add memory clobber.
        (delay_cycles_3): Add memory clobber.
        (delay_cycles_4): Add memory clobber.
        (cli_sei): New insn from former "enable_interrupt",
        "disable_interrupt" with memory clobber.
        (*wdt): New insn from former "wdt" with memory clobber.
        (*nopv): Similar, but for "nopv".
        (*sleep): Similar, but for "sleep".

        Backport from 2012-03-07 mainline r185043.

        PR target/52484
        * config/avr/avr.md (xload<mode>_A): Add R22... to register footprint.

        Backport from 2012-03-07 mainline r185032.

        PR target/52506
        * gcc/config/avr/avr.c (expand_epilogue): Fix order of restoration
        to: RAMPZ, RAMPY, RAMPX, RAMPD.
        (expand_prologue): Only clear RAMPZ if it has effect on RAM-read.

        Backport from 2012-03-07 mainline r185031.

        PR target/52505
        * config/avr/avr.c (avr_out_xload): Don't read unintentionally
        from RAM.
        * config/avr/avr.md (xload_8): Adjust insn length.

        Backport from 2012-03-07 mainline r185030.

        PR target/52461
        * gcc/config/avr/avr.c (avr_out_lpm): Clear RAMPZ after usage
        if RAMPZ affects reading from RAM.

        Backport from 2012-03-05 mainline r184919.

        * config/avr/avr.md (*umaddqihi4.2): New insn-and-split.

2012-03-22  Georg-Johann Lay  <avr@gjlay.de>

        Backport from mainline r185259.

        PR other/52545
        * output.h (SECTION_EXCLUDE, SECTION_MACH_DEP): Don't use
        SECTION_MACH_DEP reserved bits for SECTION_EXCLUDE.

2012-03-22  Jakub Jelinek  <jakub@redhat.com>

        Backported from mainline
        2012-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR c/52577
        * c-parser.c (c_parser_postfix_expression)
        <case RID_BUILTIN_SHUFFLE>: Call mark_exp_read on argument values.

        * config/i386/smmintrin.h: Avoid /* within a comment.
        * config/i386/nmmintrin.h: Likewise.

2012-03-22  Richard Guenther  <rguenther@suse.de>

        * BASE-VER: Set to 4.7.1.
        * DEV-PHASE: Set to prerelease.

2012-03-22  Release Manager

        * GCC 4.7.0 released.

2012-03-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, *-*-solaris2*): Improve wording.

2012-03-15  Jakub Jelinek  <jakub@redhat.com>
            Andrew Pinski  <apinski@cavium.com>

        PR middle-end/52592
        * builtins.c (expand_builtin_int_roundingfn_2): If expanding
        BUILT_IN_IR{INT,OUND}* using optab fails, emit lr{int,ound}*
        calls instead of __builtin_ir{int,ound}*.

2012-03-14  Jakub Jelinek  <jakub@redhat.com>

        PR c++/52582
        * config/rs6000/rs6000.c (call_ABI_of_interest): Return true
        if c_node is NULL.

2012-03-13  Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (-std=c99), doc/standards.texi (C language):
        Refer to GCC 4.7 version of c99status.html.

2012-03-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        Backport from mainline
        2012-03-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/linux64.h (OPTION_TARGET_CPU_DEFAULT): Do not
        redefine to be NULL if the current bit-size is different from the
        configured bit-size.

        * config/rs6000/rs6000.c (rs6000_option_override_internal): If the
        cpu is defaulted, use PROCESSOR_DEFAULT and PROCESSOR_DEFAULT64 to
        set the default tuning.  Add asserts to make sure the cpu and tune
        indexes are defined.  Fix tests for cpu/tune index to use >= 0 to
        test whether the index is set, instead of > 0.
        (rs6000_file_start): Do not reset the default cpu if the current
        bit-size is different from the configured bit-size.

2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, i?86-*-solaris2.[89]): Update
        binutils reference.
        (Specific, i?86-*-solaris2.10): Remove GCC 4.0 reference.
        Update binutils references.
        (Specific, *-*-solaris2*): Mention bundled GCC in Solaris 10 and 11.
        Update binutils reference.
        Update Sun as/GNU ld caveat.
        Document binutils largefile requirement for LTO plugin.
        Remove reference to alternate libpthread.

2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, alpha*-dec-osf5.1): Update binutils
        reference.
        (Specific, mips-sgi-irix6): Likewise.

2012-03-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_ix86_tlsldmplt): Add label.
        * configure: Regenerate.

2012-03-07  Richard Henderson  <rth@redhat.com>

        * config/m68k/m68k.h (ISA_HAS_TAS): New.
        * config/m68k/sync.md (atomic_test_and_set): Use it.
        (atomic_test_and_set_1): Likewise.

2012-03-07  Ralf Corsépius  <ralf.corsepius@rtems.org>

        PR target/51417
        * Makefile.in: Let install-gcc-ar depend on installdirs,
        gcc-ar$(exeext), gcc-nm$(exeext), gcc-ranlib$(exeext).
        Don't double canonicalize if cross-compiling.

2012-03-06  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c: New typedef for tm_region_p.
        Define vector types for tm_region_p.
        (tm_region_init): Replace region_worklist to a vector called
        bb_regions.

2012-03-06  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/52463
        * trans-mem.c (tm_region_init): Use last_basic_block.

2012-03-05  Richard Henderson  <rth@redhat.com>

        PR tree-opt/52242
        Revert: 2011-11-26  Richard Henderson  <rth@redhat.com>
        * omp-low.c (expand_omp_atomic): Assume anything aligned to
        BIGGEST_ALIGNMENT is aligned.

2012-03-05  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New hook.

2012-03-05  Richard Henderson  <rth@redhat.com>

        PR target/52481
        * config/m68k/sync.md (atomic_test_and_set): Use expand_simple_unop
        instead of calling negqi2 directly.

2012-03-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/mips/iris6.h [!USED_FOR_TARGET] (long_intmax): Declare.
        (INTMAX_TYPE): Use it.
        (UINTMAX_TYPE): Likewise.
        (SUBTARGET_OVERRIDE_OPTIONS): Define.
        (irix6_c_common_override_options): Declare.
        (C_COMMON_OVERRIDE_OPTIONS): Define.
        * config/mips/mips.c [TARGET_IRIX6] (long_intmax): Define.
        * config/mips/irix6-c.c: New file.
        * config/mips/t-irix6 (irix6-c.o): New target.
        * config.gcc (mips-sgi-irix6.5): Set c_target_objs,
        cxx_target_objs.

2012-03-02  Richard Henderson  <rth@redhat.com>

        * optabs.c (expand_atomic_test_and_set): Honor
        atomic_test_and_set_trueval even when atomic_test_and_set
        optab is not in use.

2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>

        Backport from mainline
        2012-03-02  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/vsx.md (vsx_set_<mode>): Reorder operands.

2012-03-02  Richard Guenther  <rguenther@suse.de>

        * DEV-PHASE: Set to prerelease.

2012-03-01  Richard Earnshaw  <rearnsha@arm.com>

        * config.gcc (obsolete): Add all ARM targets using the FPA.
        (with_fpu): Obsolete selection of the FPA or Maverick on ARM.
        * doc/install.texi: Avoid references to obsolete ARM ports.

2012-03-01  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.md (movmisalign<mode>): New patterns.

2012-03-01  Jeremy Bennett  <jeremy.bennett@embecosm.com>
            Joern Rennecke  <joern.rennecke@embecosm.com>

        * doc/extend.texi: Expand and update information on interrupt
        attribute for Epiphany.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h: Update copyright notice dates.
        * config/sh/sh.h: Likewise.
        * config/sh/sh.md: Likewise.
        * config/sh/constraints.md: Likewise.
        * config/sh/predicates.md: Likewise.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh-protos.h (tertiary_reload_operand): Remove dead function.
        * config/sh/sh.c (tertiary_reload_operand): Likewise.

2012-03-01  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/constraints.md: Fix comment typo.

2012-03-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/52408
        * config/pa/pa.md (zvdep_imm32): Change type of variable x from int to
        unsigned HOST_WIDE_INT.
        (zvdep_imm64): Likewise.
        (vdepi_ior): Change type of variable x from int to HOST_WIDE_INT.
        (vdepi_and): Likewise.
        Likewise for unamed 64-bit patterns.
        * config/pa/predicates.md (lhs_lshift_cint_operand): Update comment.

2012-03-01  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/52001
        PR rtl-optimization/52417
        * cselib.c (cselib_any_perm_equivs): New variable.
        (cselib_reset_table): Check that it's not set when not
        preserving constants.
        (cselib_add_permanent_equiv): Set it.
        (cselib_have_permanent_equivalences): New.
        (cselib_init, cselib_finish): Reset it.
        * cselib.h (cselib_have_permanent_equivalences): Declare.
        * alias.c (get_addr): Restore earlier behavior when there
        aren't permanent equivalences.

2012-03-01  Steven Bosscher  <steven@gcc.gnu.org>

        * config/mn10300/mn10300-modes.def: Fix copyright notice.
        * config/v850/v850-modes.def: Fix copyright notice.

2012-03-01  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Built-in Functions): Document
        __builtin_avr_flash_segment.

        * config/avr/builtins.def (__builtin_avr_flash_segment): New entry.
        * config/avr/avr.md (flash_segment, flash_segment1): New expanders.
        (*split.flash_segment): New insn-and-split.
        * config/avr/avr.c (avr_init_builtins): Add local variables:
        const_memx_void_node, const_memx_ptr_type_node,
        char_ftype_const_memx_ptr.

2012-03-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52445
        * tree-ssa-phiopt.c (struct name_to_bb): Remove ssa_name field,
        add ssa_name_ver, offset and size fields and change store field
        to bool.
        (name_to_bb_hash, name_to_bb_eq): Adjust for the above changes.
        (add_or_mark_expr): Likewise.  Only consider previous stores
        with the same size and offset.
        (nt_init_block): Only look at gimple_assign_single_p stmts,
        doesn't look at rhs2.

2012-03-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52443
        * tree-cfg.c (verify_gimple_assign_unary): Allow any
        conversions from integral types to pointer types.

2012-03-01  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Restore built-in
        defines for __UINT24_MAX__, __INT24_MAX__, __INT24_MIN__
        unintentionally removed in r184616.

2012-03-01  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        * doc/invoke.texi: Document AMD bdver2 and remove mentioning
        3DNow from bdver1.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>
            Uros Bizjak  <ubizjak@gmail.com>

        PR target/52437
        * config/i386/sse.md (vec_set<mode>_0): Swap "*r" and "fF"
        alternatives, add "e" constraint to the new last alternative
        and ! to last 3 alternatives.

2012-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (modified_type_die): Set DW_AT_GNAT_descriptive_type and
        DW_AT_artificial attributes at the end of the processing.
        (gen_array_type_die): Likewise.
        (gen_enumeration_type_die): Likewise.
        (gen_struct_or_union_type_die): Likewise.
        (add_gnat_descriptive_type_attribute): Do not suppress debug info for
        the parent type.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52419
        * expr.c (expand_assignment): If doing misaligned store that doesn't
        cover all mode bits, perform a RMW cycle.

        PR tree-optimization/52429
        * tree-parloops.c (separate_decls_in_region_debug): Return early
        if var is LABEL_DECL.

2012-02-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/52424
        * tree-ssa-dom.c (dom_opt_leave_block): Push a marker before
        calling dom_thread_across_edge.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c: Move definition of TARGET macros to end of file.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_output_bld): Remove unused prototype.
        * config/avr/avr.c (avr_output_bld): Remove unused function.
        (avr_out_sbxx_branch): Use "%T" to print bit position.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md: Untabify.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (eqne): New code iterator.
        (*dec-and-branchsi): Use it in text peephole's condition.
        (*dec-and-branchhi): Ditto.
        (*dec-and-branchqi): Ditto.

2012-02-29  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49939
        * config/avr/avr.h (ASM_SPEC): Add -mno-skip-bug if we know that
        the device does not have the skip-bug.

2012-02-29  Oleg Endo  <olegendo@gcc.gnu.org>

        * doc/invoke.texi (-msoft-atomic): Add more detailed description.
        (-mbranch-cost, -mcbranchdi -mcmpeqdi -mfused-madd
        -mpretend-cmove): New.

2012-02-29  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52397
        * df.h (struct df_d): Adjust comment that hard_regs_live_count
        doesn't count DEBUG_INSN refs.
        * df-scan.c (df_ref_create_structure): Don't set DF_HARD_REG_LIVE
        for DEBUG_INSN refs.

2012-02-28  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        Partially revert:

        2012-02-20  Richard Guenther  <rguenther@suse.de>
        PR tree-optimization/52298
        * tree-vect-stmts.c (vectorizable_load): Properly use
        STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
        outer loops.

2012-02-28  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51752
        * gimple.h (gimple_in_transaction): New.
        (gimple_set_in_transaction): New.
        (struct gimple_statement_base): Add in_transaction field.
        * tree-ssa-loop-im.c: (movement_possibility): Restrict movement of
        transaction loads.
        (tree_ssa_lim_initialize): Compute transaction bits.
        * tree.h (compute_transaction_bits): Protoize.
        * trans-mem.c (tm_region_init): Use the heap to store BB
        auxilliary data.
        (compute_transaction_bits): New.

2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * gcc.c (display_help): Document --help=common and sort entries
        alphabetically.

2012-02-28  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/install.texi: Document check-$LANG specific shortcuts

2012-02-28  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        PR target/51534
        * config/arm/arm.c (neon_builtin_data): Add entries for vcgeu
        and vcgtu.
        * config/arm/arm_neon.h: Regenerate.
        * config/arm/neon.md (unspec): Add UNSPEC_VCGEU, and UNSPEC_VCGTU.
        (neon_vcgeu): New insn.
        (neon_vcgtu): Likewise.
        * config/arm/neon.ml (s_8_32, u_8_32): New lists.
        (ops): Unsigned comparison intrinsics call a different
        builtin.

2012-02-28  Richard Guenther  <rguenther@suse.de>

        PR target/52407
        * config/i386/i386.c (ix86_expand_vector_set): Fix element
        ordering for the VEC_CONCAT for two element vectors for
        V2SFmode, V2SImode and V2DImode.

2012-02-28  Richard Earnshaw  <rearnsha@arm.com>

        PR target/49448
        * config.gcc (arm*-*-linux*): Use an unambiguous pattern for
        detecting big-endian triplets.

2012-02-28  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (aapcs_vfp_is_call_or_return_candidate): Only use the machine
        mode if there is no type information available.

2012-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR tree-optimization/53207
        * doc/invoke.texi: Document as experimental and relying on graphite.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-devices.c (avr_mcu_type): Adjust NULL part
        of initializer to changes from r184614.

2012-02-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52395
        * tree-sra.c (build_ref_for_offset): Also look at the base
        TYPE_ALIGN when figuring out the alignment of the replacement.

2012-02-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52402
        * ipa-prop.c (ipa_modify_call_arguments): Properly use
        mis-aligned types when creating the accesses at the call site.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/builtins.def: New file.
        * config/avr/t-avr (avr.o, avr-c.o): Depend on it.
        * config/avr/avr.c (enum avr_builtin_id): Use it.
        (avr_init_builtins): Use it. And use avr_bdesc.
        (bdesc_1arg): Remove.
        (bdesc_2arg): Remove.
        (bdesc_3arg): Remove.
        (struct avr_builtin_description): Add field n_args.
        (avr_bdesc): New static variable using builtins.def.
        (avr_expand_builtin): Use it.
        Don't call avr_expand_delay_cycles if op0 is not CONST_INT.
        (avr_fold_builtin): Fold AVR_BUILTIN_SWAP.
        Don't fold AVR_BUILTIN_INSERT_BITS if arg0 is not INTEGER_CST.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52148
        * config/avr/avr.md (movmem_<mode>): Replace match_operand that
        match only one single hard register with respective hard reg rtx.
        (movmemx_<mode>): Ditto.
        * config/avr/avr.c (avr_emit_movmemhi): Adapt expanding to new
        insn anatomy of movmem[x]_<mode>.
        (avr_out_movmem): Same for printing assembler and operand usage.

2012-02-28  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        PR target/52261
        * doc/extend.texi (AVR Named Address Spaces): No more try to fix
        address spaces located outside of device flash.

        * config/avr/avr.h (base_arch_s): Remove field n_segments.
        (mcu_type_s): Add field n_flash.
        * config/avr/avr-devices.c (avr_arch_types): Remove .n_segments.
        Set .have_elpm and .have_elpmx to 1 for avrxmega4 and avrxmega5.
        (AVR_MCU): Add N_FLASH argument.
        * config/avr/avr-mcus.def (AVR_MCU): Add initializer for .n_flash.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Only define built-in
        macro __FLASH<n> if that address space makes sense for the device.
        * config/avr/avr.c (avr_out_lpm): Don't try to fix address spaces
        outside of target flash.
        (avr_asm_named_section): Ditto.
        (avr_asm_select_section): Ditto.
        (avr_addr_space_convert): Ditto.
        (avr_emit_movmemhi): Ditto.
        (avr_nonconst_pointer_addrspace, avr_pgm_check_var_decl): Error if
        address space is outside of device flash.
        (avr_insert_attributes): Ditto.
        (avr_xload_libgcc_p): Use avr_current_device->n_flash instead of
        avr_current_arch->n_segments.

2012-02-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/52352
        * config/i386/i386.md (*movabs<mode>_1): Enable only for
        TARGET_LP64.
        (*movabs<mode>_2): Likewise.

2012-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/52375
        * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
        s_register_operand in the test instead of REG_P.  Don't call
        gen_reg_rtx if it won't be used.

        PR tree-optimization/52376
        * ipa-split.c (split_function): Ignore CLOBBER stmts.

2012-02-27  Stuart Henderson  <shenders@gcc.gnu.org>

        * ifcvt.c (noce_get_condition): Check condition variable is not
        small_register_classes_for_mode_p before accepting.

2012-02-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*movabs<mode>_1): Fix operand 1 constraints.

2012-02-27  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        Revert:
        2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
        * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
        tuning parameters.
        * config/arm/arm.c (arm_cortex_a15_tune): New static variable.

2012-02-27  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/sh.h: Delete dead GO_IF_LEGITIMATE_INDEX macro.

2012-02-26  Oleg Endo  <olegendo@gcc.gnu.org>

        * config/sh/predicates.md: Remove blank lines.
        * config/sh/sh.c: Fix typos in comments.
        * config/sh/constraints.md: Likewise.
        * config/sh/sh.md: Remove blank lines.
        Fix typos in comments.  Use ;; as comment characters.

2012-02-26  Walter Lee  <walt@tilera.com>

        * config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction pattern.
        (replace_mov_pcrel_step2): Ditto.

2012-02-25  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/52001
        * alias.c (refs_newer_value_cb, refs_newer_value_p): New.
        (get_addr): Walk canonical value's locs.  Avoid returning VALUEs
        and locs that reference values newer than the non-canonical value
        at hand.  Return the canonical value as a worst case.
        (memrefs_conflict_p): Walk canonical value's locs.

        PR debug/52001
        * cselib.c (preserve_only_constants): Rename to...
        (preserve_constants_and_equivs): ... this.  Split out...
        (invariant_or_equiv_p): ... this.  Preserve plus expressions
        of other preserved expressions too.
        (cselib_reset_table): Adjust.
        * var-tracking.c (reverse_op): Use canonical value to build
        reverse operation.

2012-02-23  Kai Tietz  <ktietz@redhat.com>

        * config/i386/i386.c (ix86_delegitimize_address): Handle
        UNSPEC_PCREL plus displacement.

2012-02-24  Georg-Johann Lay  <avr@gjlay.de>

        PR target/52261
        * config/avr/avr.c (avr_out_movhi_mr_r_xmega): Use base
        to test for unusedness in st X addressing.

2012-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52361
        * gimple.c (walk_gimple_op): Use predicates with less redundant tests.
        (is_gimple_reg_type): Move inline ...
        * gimple.h (is_gimple_reg_type): ... here.

2012-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52361
        * passes.c (execute_function_todo): When verifying SSA form
        verify gimple form first.
        * tree-ssa.c (verify_ssa): Do not verify gimple form here.

2012-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52355
        * fold-const.c (fold_addr_of_array_ref_difference): New function.
        (fold_binary_loc): Use it to extend the existing &a[i] - &a[j] folding.

2012-02-13  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * tree-if-conv (predicate_scalar_phi): Commentary typo fix.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * tree-phinodes.c (make_phi_node): Mark static.
        * tree-flow.h (make_phi_node): Remove extern decl.
        * doc/gimple.texi (make_phi_node): Remove documentation.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * tree-into-ssa (update_ssa): Avoid trailing whitespace in dump_file.
        * tree-ssa-sccvn.c (print_scc): Ditto.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/passes.texi (Full redundancy elimination): Fix typo.

2012-02-23  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * doc/invoke.texi (-fdse, -fdce): Remove duplicate entries.

2012-02-23  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/52287
        * haifa-sched.c (rank_for_schedule): Stabilize sort for debug insns.

2012-02-23  Uros Bizjak  <ubizjak@gmail.com>

        PR c/52290
        * c-decl.c (start_function): Exit early if decl1 is not FUNTION_DECL.

2012-02-23  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (code_stdname): Add ior, xor.
        (xior): New code iterator.
        (*<code_stdname><mode>qi.byte0): Use xior instead of ior.
        (*<code_stdname><mode>qi.byte1-3): Ditto.

2012-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52019
        * ipa-split.c (find_return_bb, find_retval, visit_bb): Ignore
        CLOBBER stmts.

2012-02-23  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * acinclude.m4: Use HAVE_INITFINI_ARRAY_SUPPORT instead of
        HAVE_INITFINI_ARRAY to work around namespace pollution in
        certain versions of newlib system headers.
        * config.in: Regenerate.
        * configure: Regenerate.
        * config/initfini-array.h: Use HAVE_INITFINI_ARRAY_SUPPORT
        instead of HAVE_INITFINI_ARRAY.

2012-02-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52330
        * config/i386/i386.c (ix86_print_operand) <case 'H'>: Error out if x
        is not offsettable memory reference.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

        PR target/18145
        * config/avr/avr.c (avr_asm_output_aligned_decl_common): Skip
        setting avr_need_clear_bss_p for __gnu_lto* symbols.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.h (avr_accumulate_outgoing_args): Return int.
        * config/avr/avr.c (avr_accumulate_outgoing_args): Return int.

2012-02-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
        library on Solaris 8 even without TLS support.
        * configure: Regenerate.

2012-02-22  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52329
        * gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
        for GIMPLE_DEBUG stmts.

2012-02-22  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/51782
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Set address space
        according to the base object.

2012-02-22  Georg-Johann Lay  <avr@gjlay.de>

        PR rtl-optimization/50063
        * config/avr/avr.md (movhi_sp_r): Handle -1 (unknown IRQ state)
        and 2 (8-bit SP) in operand 2.
        * config/avr/avr.c (avr_prologue_setup_frame): Adjust prologue
        setup to use movhi_sp_r instead of vanilla move to write SP.
        Adjust REG_CFA notes to superseed unspec.
        (expand_epilogue): Adjust epilogue setup to use movhi_sp_r instead
        of vanilla move.
        As function body might contain CLI or SEI: Use irq_state 0 (IRQ
        known to be off) only with TARGET_NO_INTERRUPTS. Never use
        irq_state 1 (IRQ known to be on) here.

2012-02-21  Bernd Schmidt  <bernds@codesourcery.com>

        * ira.c (check_allocation): Use REG_WORDS_BIG_ENDIAN, not
        WORDS_BIG_ENDIAN.
        * ira-color.c (setup_profitable_hard_regs, check_hard_reg_p,
        assign_hard_reg): Likewise.

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (neghi2): Remove "!d,0" alternative. Tweak "r,0".

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md
        (*dec-and-branchhi!=-1.d.clobber): New text peephole.
        (*dec-and-branchhi!=-1.l.clobber): New text peephole.

2012-02-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_accumulate_outgoing_args): Move
        prototype from here to...
        * config/avr/avr.h: ...here.

2012-02-21  Richard Earnshaw  <rearnsha@arm.com>

        PR target/52294
        * thumb2.md (thumb2_shiftsi3_short): Split register and
        immediate shifts.  For register shifts tie operands 0 and 1.
        (peephole2 for above): Check that register-controlled shifts
        have suitably tied operands.

2012-02-21  Quentin Neill  <quentin.neill@amd.com>

        PR target/52137
        * config/i386/bdver1.md (bdver1_call, bdver1_push,
        bdver1_pop, bdver1_leave, bdver1_lea, bdver1_imul_DI, bdver1_imul,
        bdver1_imul_mem_DI, bdver1_imul_mem, bdver1_idiv, bdver1_idiv_mem,
        bdver1_str, bdver1_idirect, bdver1_ivector, bdver1_idirect_loadmov,
        bdver1_idirect_load, bdver1_ivector_load, bdver1_idirect_movstore,
        bdver1_idirect_both, bdver1_ivector_both, bdver1_idirect_store,
        bdver1_ivector_store, bdver1_fldxf, bdver1_fld, bdver1_fstxf,
        bdver1_fst, bdver1_fist, bdver1_fmov_bdver1, bdver1_fadd_load,
        bdver1_fadd, bdver1_fmul_load, bdver1_fmul, bdver1_fsgn,
        bdver1_fdiv_load, bdver1_fdiv, bdver1_fpspc_load, bdver1_fpspc,
        bdver1_fcmov_load, bdver1_fcmov, bdver1_fcomi_load,
        bdver1_fcomi, bdver1_fcom_load, bdver1_fcom,
        bdver1_fxch, bdver1_ssevector_avx128_unaligned_load,
        bdver1_ssevector_avx256_unaligned_load,
        bdver1_ssevector_sse128_unaligned_load,
        bdver1_ssevector_avx128_load, bdver1_ssevector_avx256_load,
        bdver1_ssevector_sse128_load, bdver1_ssescalar_movq_load,
        bdver1_ssescalar_vmovss_load, bdver1_ssescalar_sse128_load,
        bdver1_mmxsse_load, bdver1_sse_store_avx256, bdver1_sse_store,
        bdver1_mmxsse_store_short, bdver1_ssevector_avx256,
        bdver1_movss_movsd, bdver1_mmxssemov, bdver1_sselog_load_256,
        bdver1_sselog_256, bdver1_sselog_load, bdver1_sselog,
        bdver1_ssecmp_load, bdver1_ssecmp, bdver1_ssecomi_load,
        bdver1_ssecomi, bdver1_vcvtX2Y_avx256_load, bdver1_vcvtX2Y_avx256,
        bdver1_ssecvt_cvtss2sd_load, bdver1_ssecvt_cvtss2sd,
        bdver1_sseicvt_cvtsi2sd_load, bdver1_sseicvt_cvtsi2sd,
        bdver1_ssecvt_cvtpd2ps_load, bdver1_ssecvt_cvtpd2ps,
        bdver1_ssecvt_cvtdq2ps_load, bdver1_ssecvt_cvtdq2ps,
        bdver1_ssecvt_cvtdq2pd_load, bdver1_ssecvt_cvtdq2pd,
        bdver1_ssecvt_cvtps2pd_load, bdver1_ssecvt_cvtps2pd,
        bdver1_ssecvt_cvtsX2si_load, bdver1_ssecvt_cvtsX2si,
        bdver1_ssecvt_cvtpd2pi_load, bdver1_ssecvt_cvtpd2pi,
        bdver1_ssecvt_cvtpd2dq_load, bdver1_ssecvt_cvtpd2dq,
        bdver1_ssecvt_cvtps2pi_load, bdver1_ssecvt_cvtps2pi,
        bdver1_ssemuladd_load_256, bdver1_ssemuladd_256,
        bdver1_ssemuladd_load, bdver1_ssemuladd, bdver1_sseimul_load,
        bdver1_sseimul, bdver1_sseiadd_load, bdver1_sseiadd,
        bdver1_ssediv_double_load_256, bdver1_ssediv_double_256,
        bdver1_ssediv_single_load_256, bdver1_ssediv_single_256,
        bdver1_ssediv_double_load, bdver1_ssediv_double,
        bdver1_ssediv_single_load, bdver1_ssediv_single, bdver1_sseins):
        Add "bdver2" attribute.

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_option_override): Make -mhard-dfp the
        default if possible and not specified otherwise.

2012-02-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/52314
        * gimplify.c (create_tmp_from_val): Use the main variant type
        for the type of the temporary we create.

2012-02-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52324
        * gimplify.c (gimplify_expr): When re-gimplifying expressions
        do not gimplify a MEM_REF address operand if it is already
        in suitable form.

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("fixuns_trunc<mode>si2"): Replace
        TARGET_HARD_FLOAT with TARGET_HARD_DFP.

2012-02-21  Richard Guenther  <rguenther@suse.de>

        * tree-vect-stmts.c (vectorizable_load): Use pre-computed
        nested_in_vect_loop.

2012-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52318
        * gimple-fold.c (gimplify_and_update_call_from_tree): Add
        vdef also to non-pure/const call stmts in the sequence.

2012-02-20  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (load_pcrel_sym<P:mode>): Explain why we
        don't use the "rd %pc" instruction on v9 for PIC register loads.

2012-02-20  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/52141
        * trans-mem.c (ipa_tm_scan_irr_block): Error out on GIMPLE_ASM's
        in a transaction safe function.

2012-02-20  Kai Tietz  <ktietz@redhat.com>

        PR target/52238
        * stor-layout.c (place_field): Handle desired_align for
        ms-bitfields, too.

2012-02-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52298
        * tree-vect-stmts.c (vectorizable_store): Properly use
        STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
        outer loops.
        (vectorizable_load): Likewise.
        * tree-vect-data-refs.c (vect_analyze_data_ref_access):
        Access DR_STEP after ensuring it is not NULL.

2012-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52286
        * fold-const.c (fold_binary_loc): For (X & C1) | C2
        optimization use double_int_to_tree instead of build_int_cst_wide,
        rewrite to use double_int vars.

2012-02-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/50166
        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Require gcc_SUN_LD_VERSION.
        Define _start.
        Remove -e 0 from $gcc_cv_ld invocation.
        Only use __GLIBC_PREREQ if defined.
        Enable on Solaris since Solaris 8 patch.
        (gcc_SUN_LD_VERSION): New macro.
        * configure.ac (ld_ver) <*-*-solaris2*>: Refer to
        gcc_SUN_LD_VERSION for version number format.
        * configure: Regenerate.
        * varasm.c (get_elf_initfini_array_priority_section): Set
        SECTION_NOTYPE for non-default priority.
        Use get_section instead of get_unnamed_section to emit
        .init_array/.fini_array with default priority.

2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_need_mips16_rdhwr_p): New variable.
        (mips_get_tp): Set it.  Record that __mips16_rdhwr binds locally.
        (mips_start_unique_function, mips_output_mips16_rdhwr)
        (mips_code_end): New functions.
        (TARGET_ASM_CODE_END): Define.

2012-02-19  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips16_build_call_stub): Add CFI information
        to stubs with non-sibling calls.

2012-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (-fira-* options): Copy-edit.
        (ira-* parameters): Copy-edit.

2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Minor copy-edits to bring into conformance with
        GCC coding conventions.

2012-02-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Consistently hyphenate "big-endian"/"little-endian"
        when used as adjectives.

2012-02-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Clean up "that"/"which" confusion.

2012-02-17  Steven Bosscher  <steven@gcc.gnu.org>

        * system.h: Poison SMALL_REGISTER_CLASSES
        * config/rl78/rl78.h: Replace SMALL_REGISTER_CLASSES with hook.
        * config/rx/rx.h: Remove SMALL_REGISTER_CLASSES.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52285
        * tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts
        when deciding if a call is a tail call or tail recursion.

2012-02-16  Kai Tietz  <ktietz@redhat.com>

        * config/i386/i386.c (legitimate_pic_address_disp_p): Allow
        interger-constant displacement for UNSPEC_PCREL.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/52208
        * ira-costs.c (scan_one_insn): Don't decrease mem_cost
        for MEMs with REG_EQUIV, if the MEM isn't general_operand.

        PR tree-optimization/52255
        * tree-vect-loop-manip.c (slpeel_tree_peel_loop_to_edge): If
        loop->header has virtual PHI, but exit_e->dest doesn't, add
        virtual PHI to exit_e->dest and adjust all uses after the loop.

        PR debug/52260
        * dwarf2out.c (copy_decls_walk): Fill in *slot before traversing
        children with clone_tree_hash, not after it.

2012-02-16  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin.h (ASM_OUTPUT_LABELREF): Add user label prefix for
        extended identifiers.

2012-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51929
        * cgraphunit.c (verify_edge_corresponds_to_fndecl): If node is
        a same_body_alias, also test whether e->callee isn't a former
        or current clone of the decl this is a same body alias of.

        PR translation/52264
        * cgraphunit.c (verify_cgraph_node): Fix a typo.

2012-02-15  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Clean up "n-bit/byte/word" modifiers.

2012-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/52199
        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
        force_reg instead of copy_to_reg for better optimization.  Force
        non-register or memory operands into a register.

2012-02-15  Andrew MacLeod  <amacleod@redhat.com>

        * extend.texi: Reserve upper bits of memory model for future use.

2012-01-15  Georg-Johann Lay  <avr@gjlay.de>
            Anatoly Sokolov <aesok@post.ru>
            Eric Weddington <eric.weddington@atmel.com>

        PR target/52261
        * config/avr/avr-devices.c (avr_arch_types): Add avrxmega2,
        avrxmega4, avrxmega5, avrxmega6, avrxmega7.
        Rewrite initializers for .macro.
        * config/avr/avr-mcus.def (AVR_MCU): Add known MCUs:
        avrxmega2: atxmega16a4, atxmega16d4, atxmega16x1, atxmega32a4
        atxmega32d4, atxmega32x1.
        avrxmega4: atxmega64a3, atxmega64d3.
        avrxmega5: atxmega64a1, atxmega64a1u.
        avrxmega6: atxmega128a3, atxmega128d3, atxmega192a3, atxmega192d3,
        atxmega256a3, atxmega256a3b, atxmega256a3bu, atxmega256d3.
        avrxmega7: atxmega128a1, atxmega128a1u.
        * config/avr/avr.h (enum avr_arch): Add: ARCH_AVRXMEGA2,
        ARCH_AVRXMEGA4, ARCH_AVRXMEGA5, ARCH_AVRXMEGA6, ARCH_AVRXMEGA7.
        (struct base_arch_s): Rename reserved to xmega_p.
        Rename reserved2 to have_rampd.
        (AVR_XMEGA): New define.
        (AVR_HAVE_RAMPD, AVR_HAVE_RAMPX, AVR_HAVE_RAMPY): New defines.
        (AVR_HAVE_RAMPZ): Change definition to fit xmega.
        * config/avr/predicates.md (io_address_operand): Take into
        account SFR offset.
        (low_io_address_operand): Ditto.
        (high_io_address_operand): Ditto.
        * config/avr/avr.md (isa): Add alternatives no_xmega, xmega.
        (enabled, movhi_sp_r): Use them.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use
        cpp_define_formatted to built-in define __AVR_ARCH__.
        (__AVR_XMEGA__): New built-in define.
        (__AVR_HAVE_RAMPD__): New built-in define.
        (__AVR_HAVE_RAMPX__): New built-in define.
        (__AVR_HAVE_RAMPY__): New built-in define.
        (__AVR_HAVE_RAMPZ__): Change condition when to built-in define it.

        * config/avr/avr.c (avr_addr_t): Add ccp, rampd, rampx, rampy.
        (avr_option_override): Initialize them.
        (sreg_rtx, rampd_rtx, rampx_rtx, rampy_rtx): New GTY rtx.
        (avr_init_expanders): Initialize them. No more block several calls.
        (emit_push_sfr): New static function.
        (avr_prologue_setup_frame): Use it to push SREG, RAMPD/X/Y/Z as needed.
        Handle AVR_XMEGA.
        (expand_epilogue): Handle AVR_XMEGA. Pop RAMPD/X/Y/Z as needed.
        (avr_print_operand): Print addreeses as symbols for
        RAMPX, RAMPY, RAMPD, CCP.
        (output_movhi): Handle AVR_XMEGA when writing to SP.
        (avr_out_movhi_mr_r_xmega): New static function.
        (out_movhi_mr_r): Forward to avr_out_movhi_mr_r_xmega for AVR_XMEGA.
        (avr_file_start): Print symbol defines for __RAMPX__,  __RAMPY__,
        __RAMPD__,  __CCP__ as needed.

        * config/avr/multilib.h: Regenerate.
        * config/avr/t-multilib: Regenerate.
        * config/avr/avr-tables.opt: Regenerate.

2012-02-15  Tobias Grosser <grosser@fim.uni-passau.de>

        PR tree-optimization/50561
        * graphite-flattening.c (lst_project_loop): Do not
        remove old scattering dimensions after flattening.
        (lst_do_flatten): Likewise.

2012-02-15  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Built-in Functions): Remove doc for
        __builtin_avr_map8, __builtin_avr_map16.
        Document __builtin_avr_insert_bits.

        * config/avr/avr.md (map_bitsqi, map_bitshi): Remove.
        (insert_bits): New insn.
        (adjust_len.map_bits): Rename to insert_bits.
        (UNSPEC_MAP_BITS): Rename to UNSPEC_INSERT_BITS.
        * avr-protos.h (avr_out_map_bits): Remove.
        (avr_out_insert_bits, avr_has_nibble_0xf): New.
        * config/avr/constraints.md (Cxf,C0f): New.
        * config/avr/avr.c (avr_cpu_cpp_builtins): Remove built-in
        defines __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.
        New built-in define __BUILTIN_AVR_INSERT_BITS.
        * config/avr/avr.c (TARGET_FOLD_BUILTIN): New define.
        (enum avr_builtin_id): Add AVR_BUILTIN_INSERT_BITS.
        (avr_move_bits): Rewrite.
        (avr_fold_builtin, avr_map_metric, avr_map_decompose): New static
        functions.
        (avr_map_op_t): New typedef.
        (avr_map_op): New static variable.
        (avr_out_insert_bits, avr_has_nibble_0xf): New functions.
        (adjust_insn_length): Handle ADJUST_LEN_INSERT_BITS.
        (avr_init_builtins): Add definition for __builtin_avr_insert_bits.
        (bdesc_3arg, avr_expand_triop_builtin): New.
        (avr_expand_builtin): Use them. And handle AVR_BUILTIN_INSERT_BITS.
        (avr_revert_map, avr_swap_map, avr_id_map, avr_sig_map): Remove.
        (avr_map_hamming_byte, avr_map_hamming_nonstrict): Remove.
        (avr_map_equal_p, avr_map_sig_p): Remove.
        (avr_out_swap_bits, avr_out_revert_bits, avr_out_map_bits): Remove.
        (bdesc_2arg): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
        (adjust_insn_length): Remove handling for ADJUST_LEN_MAP_BITS.
        (enum avr_builtin_id): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
        (avr_init_builtins): Remove __builtin_avr_map8, __builtin_avr_map16.
        (avr_expand_builtin): Remove AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.

2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>

        * config/c6x/c6x.md (reserve_cycles): New attribute.
        * config/c6x/c6x.c (c6x_sched_reorder_1): Ensure insns we predicate
        don't reserve functional units after the branch occurs.

2012-02-14  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/52142
        * ipa-inline.c (can_inline_edge_p): Do not inline tm_pure
        functions into non-tm_pure functions.

2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR lto/52178
        * gimple.c (iterative_hash_gimple_type): Use RECORD_OR_UNION_TYPE_P.
        (iterative_hash_canonical_type): Likewise.
        * tree-ssa-pre.c (fini_pre): Clean up the CFG only after purging all
        the dead edges.

2012-02-14  Bernd Schmidt  <bernds@codesourcery.com>

        * haifa-sched.c (prune_ready_list): Ensure that if there is a
        sched-group insn, it either remains alone or the entire list is pruned.

2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/install.texi (Prerequisites): Fix grammar.
        (Configuration): Likewise.

2012-02-14  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
        MPC as part of GCC before describing configuring with --with-gmp etc.
        (Installing GCC: Configuration): --with-gmp etc. aren't needed if
        sources are present.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51950
        * dwarf2out.c (clone_tree_hash): New function.
        (copy_decls_walk): Use it instead of clone_tree.

2012-02-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52244
        PR tree-optimization/51528
        * tree-sra.c (analyze_access_subtree): Only create INTEGER_TYPE
        replacements for integral types.

2012-02-14  Walter Lee  <walt@tilera.com>

        * config.gcc: Handle tilegx and tilepro.
        * configure.ac (gcc_cv_as_dwarf2_debug_line): Enable test for
        tilegx and tilepro.
        Add HAVE_AS_TLS check for tilegx and tilepro.
        * configure: Regenerate.
        * doc/contrib.texi: Add Mat Hostetter and self.
        * doc/extend.texi (TILE-Gx Built-in Functions): New node.
        Document instruction intrinsics and network accessing intrinsics.
        (TILEPro Built-in Functions): New node.  Document instruction
        intrinsics and network accessing intrinsics.
        * doc/install.texi (Specific, tilegx-*-linux*): Document it.
        (Specific, tilepro-*-linux*): Likewise.
        * doc/invoke.texi (TILE-Gx Options): New section.
        (TILEPro Options): New section.
        * doc/md.texi (TILE-Gx): New section.
        (TILEPro): New section.
        * common/config/tilegx/tilegx-common.c: New file.
        * common/config/tilepro/tilepro-common.c: New file.
        * config/tilegx/constraints.md: New file.
        * config/tilegx/linux.h: New file.
        * config/tilegx/mul-tables.c: New file.
        * config/tilegx/predicates.md: New file.
        * config/tilegx/sync.md: New file.
        * config/tilegx/t-tilegx: New file.
        * config/tilegx/tilegx-builtins.h: New file.
        * config/tilegx/tilegx-c.c: New file.
        * config/tilegx/tilegx-generic.md: New file.
        * config/tilegx/tilegx-modes.def: New file.
        * config/tilegx/tilegx-multiply.h: New file.
        * config/tilegx/tilegx-protos.h: New file.
        * config/tilegx/tilegx.c: New file.
        * config/tilegx/tilegx.h: New file.
        * config/tilegx/tilegx.md: New file.
        * config/tilegx/tilegx.opt: New file.
        * config/tilepro/constraints.md: New file.
        * config/tilepro/gen-mul-tables.cc: New file.
        * config/tilepro/linux.h: New file.
        * config/tilepro/mul-tables.c: New file.
        * config/tilepro/predicates.md: New file.
        * config/tilepro/t-tilepro: New file.
        * config/tilepro/tilepro-builtins.h: New file.
        * config/tilepro/tilepro-c.c: New file.
        * config/tilepro/tilepro-generic.md: New file.
        * config/tilepro/tilepro-modes.def: New file.
        * config/tilepro/tilepro-multiply.h: New file.
        * config/tilepro/tilepro-protos.h: New file.
        * config/tilepro/tilepro.c: New file.
        * config/tilepro/tilepro.h: New file.
        * config/tilepro/tilepro.md: New file.
        * config/tilepro/tilepro.opt: New file.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/52210
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Call
        vect_model_simple_cost with two entry vect_def_type array instead
        of an address of dt.

2012-02-14  Richard Guenther  <rguenther@suse.de>

        PR lto/52178
        * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
        Do not stream DECL_QUALIFIER.
        * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
        * tree.c (free_lang_data_in_decl): Free DECL_QUALIFIER.
        (find_decls_types_r): Do not walk DECL_QUALIFIER.

2012-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR c/52181
        * c-decl.c (merge_decls): Copy DECL_USER_ALIGN bit from olddecl to
        newdecl.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52172
        * cselib.h (cselib_subst_to_values_from_insn): New prototype.
        * cselib.c (cselib_subst_to_values_from_insn): New function.
        * sched-deps.c (add_insn_mem_dependence,
        sched_analyze_1, sched_analyze_2): Use it.

2012-02-13  Jan Hubicka  <jh@suse.cz>

        PR middle-end/52214
        * predict.c (predict_paths_for_bb): Fix thinko in prevoius patch.

2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc.c (LINK_COMMAND_SPEC): Deal with -fgnu-tm.
        (GTM_SELF_SPECS): Define if not already defined.
        (driver_self_specs): Add GTM_SELF_SPECS.
        * config/darwin.h (LINK_COMMAND_SPEC_A): Deal with -fgnu-tm.
        (GTM_SELF_SPECS): Define.
        * config/i386/cygwin.h (GTM_SELF_SPECS): Likewise.
        * config/i386/mingw32.h (GTM_SELF_SPECS): Likewise.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

        * cselib.c (expand_loc): Return sp, fp, hfp or cfa base reg right
        away if seen.

        * cselib.c (dump_cselib_val): Don't assume l->setting_insn is non-NULL.

        PR middle-end/52230
        * omp-low.c (expand_omp_for): If a static schedule without chunk size
        has NULL region->cont, force fd.chunk_size to be integer_zero_node.

2012-02-13  Andrew MacLeod  <amacleod@redhat.com>

        PR c/52190
        * doc/extend.texi : Fix another __atomic_compare_exchange typo.

2012-02-13  Richard Guenther  <rguenther@suse.de>

        PR translation/52211
        * passes.c (enable_disable_pass): Fix typo.

2012-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52209
        * expr.c (expand_expr_real_2) <case BIT_NOT_EXPR>: Only expand using
        XOR for reduce_bit_field if type is unsigned.

2012-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): In 64-bit mode,
        disallow changes from SFmode to mode with different size in FP regs.

2012-02-12  Robert Millan  <rmh@gnu.org>
            Gerald Pfeifer <gerald@pfeifer.com>

        * ginclude/stddef.h [__FreeBSD_kernel__] (__size_t): Do not define.
        Tweak comment.

2012-02-11  Richard Sandiford  <rdsandiford@googlemail.com>

        PR rtl-optimization/52175
        * reorg.c (fill_slots_from_thread): Don't apply add/sub optimization
        to frame-related instructions.

2012-02-10  Jason Merrill  <jason@redhat.com>

        PR c++/51910
        * tlink.c (demangled_hash_entry): Change mangled to a VEC.
        (demangle_new_symbols): Fill it.
        (scan_linker_output): Walk it.
        (start_tweaking): Split out from scan_linker_output.
        (maybe_tweak): Update sym->chosen.
        * Makefile.in (COLLECT2_OBJS): Add vec.o and gcc-none.o

2012-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52132
        * reg-stack.c (subst_stack_regs_in_debug_insn): Don't use get_true_reg.

2012-02-11  Uros Bizjak  <ubizjak@gmail.com>

        * compare-elim.c (find_comparisons_in_bb): Eliminate only compares
        having the same mode as previous compare.

2012-02-10  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_flat_expand_prologue): Use emit_use.
        * config/sparc/sparc.md (UNSPECV_GOTO): Delete.
        (nonlocal_goto_internal): Likewise.
        (nonlocal_goto): Emit a use and an indirect jump directly.

2012-02-10  Andrew MacLeod  <amacleod@redhat.com>

        PR c/52190
        * doc/extend.texi : Update comments for __atomic_compare_exchange and
        __atomic_{is,always}_lock_free.

2012-02-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/52146
        * config/i386/i386.c (ix86_legitimate_address_p): Disallow
        negative constant address for x32.

2012-02-10  Richard Henderson  <rth@redhat.com>

        * tree-ssa-dce.c (propagate_necessity): Handle GIMPLE_TRANSACTION.
        * tree-ssa-operands.c (parse_ssa_operands): Add virtual operands
        for GIMPLE_TRANSACTION.  Tidy if's into a switch.

2012-02-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/50031
        * targhooks.c (default_builtin_vectorization_cost): Handle
        vec_promote_demote.
        * target.h (enum vect_cost_for_stmt): Add vec_promote_demote.
        * tree-vect-loop.c (vect_get_single_scalar_iteraion_cost): Handle
        all types of reduction and pattern statements.
        (vect_estimate_min_profitable_iters): Likewise.
        * tree-vect-stmts.c (vect_model_promotion_demotion_cost): New function.
        (vect_get_load_cost): Use vec_perm for permutations; add dump logic
        for explicit realigns.
        (vectorizable_conversion): Call vect_model_promotion_demotion_cost.
        * config/spu/spu.c (spu_builtin_vectorization_cost): Handle
        vec_promote_demote.
        * config/i386/i386.c (ix86_builtin_vectorization_cost): Likewise.
        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Update
        vec_perm for VSX and handle vec_promote_demote.

2012-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52177
        * builtins.c (fold_builtin_atomic_always_lock_free,
        expand_builtin_atomic_always_lock_free,
        fold_builtin_atomic_is_lock_free, expand_builtin_atomic_is_lock_free):
        Return and/or test boolean_true_node/boolean_false_node instead of
        integer_one_node/integer_zero_node.

2012-02-10  Jan Hubicka  <jh@suse.cz>

        PR middle-end/48600
        * predict.c (predict_paths_for_bb): Prevent looping.
        (predict_paths_leading_to_edge, predict_paths_leading_to): Update.

2012-02-10  Roman Zhuykov  <zhroma@ispras.ru>

        * config/arm/arm.c (output_move_double): In one case properly
        count number of instructions that will be emitted.

2012-02-10  Richard Guenther  <rguenther@suse.de>

        PR translation/52193
        * cgraphunit.c (cgraph_mark_functions_to_output): Fix typo.

2012-02-09  Peter Bergner  <bergner@vnet.ibm.com>

        PR middle-end/52140
        * dojump.c (do_compare_rtx_and_jump): Use SCALAR_FLOAT_MODE_P.

2012-02-09  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52165
        * var-tracking.c (emit_note_insn_var_location): If
        EMIT_NOTE_BEFORE_INSN and insn is NOTE_INSN_CALL_ARG_LOCATION,
        emit it before next non-NOTE_INSN_CALL_ARG_LOCATION
        non-NOTE_DURING_CALL_P insn.

2012-02-09  Bin Cheng  <bin.cheng@arm.com>

        PR middle-end/51867
        * builtins.c (expand_builtin): Don't check DECL_ASSEMBLER_NAME_SET_P.

2012-02-08  Magnus Granberg  <zorry@gentoo.org>

        PR driver/48524
        * gcc.c (switch_matches) Support switches with separated form,
        -D and -U.

2012-02-08  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (SREG_ADDR): Remove constant definition.
        (SP_ADDR): Ditto.
        (RAMPZ_ADDR): Ditto.
        * config/avr/avr.c (avr_addr_t): New typedef.
        (avr_addr): New struct to hold RAM address of SPL, SPH, RAMPZ, SREG.
        (avr_init_expanders): Initialize it.
        (expand_prologue): Use avr_addr instead of RAMPZ_ADDR, SP_ADDR,
        SREG_ADDR.
        (expand_epilogue): Ditto.
        (avr_print_operand): Ditto.
        (avr_file_start): Ditto.
        (avr_emit_movmemhi): Ditto.

2012-02-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/46886
        * tree-flow.h (do_while_loop_p): Declare.
        * tree-ssa-loop-ch.c (do_while_loop_p): Export.
        * tree-parloops.c (parallelize_loops): Only parallelize do-while loops.

2012-02-08  Andrew MacLeod  <amacleod@redhat.com>

        * optabs.c (expand_atomic_load): Do not assume compare_and_swap will
        always succeed for integers larger than a native word.

2012-02-08  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/52170
        * simplify-rtx.c (simplify_plus_minus): Use CONSTM1_RTX to
        properly handle integer vector modes.

2012-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR gcov-profile/52150
        * coverage.c: Include target.h.
        (build_var): Call targetm.strip_name_encoding on the assembler name.
        Change one _ into . or $ if the target allows it.
        * Makefile.in (coverage.o): Depend on $(TARGET_H).

        PR rtl-optimization/52139
        * cfgrtl.c (cfg_layout_merge_blocks): If BB_END
        is a BARRIER after emit_insn_after_noloc, move BB_END
        to the last non-BARRIER insn before it.

2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/24306
        * config/mips/mips.c (mips_std_gimplify_va_arg_expr): New function.
        (mips_gimplify_va_arg_expr): Call it instead of
        std_gimplify_va_arg_expr.

2012-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_trampoline_init): Fix error
        message for -mno-pointers-to-nested-function.

2012-02-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/51994
        * expr.c (get_inner_reference): If there is an offset, add a negative
        bit position to it (if any).

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/52060
        * combine.c (try_combine): Add i0src_copy and i0src_copy2 variables,
        copy i1src to i1src_copy whenever added_sets_2 && i1_feeds_i2_n already
        before i1dest -> i1src substitution in newpat, copy i0src to i0src_copy
        and/or i0src_copy2 when needed.

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (main): Don't look for lto-wrapper or lto-wrapper
        or LTOPLUGINSONAME if have_c.

        * config/freebsd-spec.h: Add comment about what macros can be defined
        in this header.
        (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): Don't define here.
        * config/freebsd.h (LINK_EH_SPEC, LINK_SSP_SPEC, USE_LD_AS_NEEDED): But
        here instead.

2012-02-07  Richard Guenther  <rguenther@suse.de>

        * gimple-pretty-print.c (dump_gimple_phi): Avoid excessive
        newline in -alias dumps.

2012-02-07  Kai Tietz  <ktietz@redhat.com>
            Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/40068
        * config/i386/winnt-cxx.c (i386_pe_adjust_class_at_definition):
        Take care that typinfo gets dllexport-attribute.

2012-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/52074
        * expr.c (expand_expr_addr_expr_1): For CONSTANT_CLASS_P or CONST_DECL
        if modifier < EXPAND_SUM call force_operand on the result.

2012-02-07  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.h (ASM_DECLARE_FUNCTION_SIZE): Redefine,
        adding __forwarder_dst__ prefix if a forwarder_section attribute is
        present.
        (epiphany_function_type): Replace types for specific interrupts with
        EPIPHANY_FUNCTION_INTERRUPT.
        (EPIPHANY_INTERRUPT_P): Update.
        * config/epiphany/epiphany.c (epiphany_handle_forwarder_attribute):
        New static function.
        (epiphany_attribute_table) <interrupt>: min_len is 0, max_len is 9.
        <disinterrupt>: Affects type identity.
        (epiphany_handle_interrupt_attribute): Handle variable number of
        arguments.
        (epiphany_compute_function_type): Update for new
        epiphany_function_type definition.
        (epiphany_expand_prologue): Don't save (reg:DI GPR_0) for interrupt
        handlers with a longcall forwarder.
        (epiphany_start_function): Handle multiple interrupt arguments and/or
        forwarder_section attribute.

        * config/epiphany/epiphany.h (LIB_SPEC): Link libc again after
        libgloss.

2012-02-07  Alan Modra  <amodra@gmail.com>

        PR target/52107
        * config/rs6000/rs6000.c (rs6000_emit_move): Don't create DImode
        subregs of TFmode.

2012-02-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/50969
        * tree-vect-stmts.c (vect_model_store_cost): Correct statement cost to
        use vec_perm rather than vector_stmt.
        (vect_model_load_cost): Likewise.
        * config/i386/i386.c (ix86_builtin_vectorization_cost): Change cost of
        vec_perm to be the same as other vector statements.
        * config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): Revise
        cost of vec_perm for TARGET_VSX.

2012-02-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52115
        * tree-sra.c (access_has_replacements_p): New function.
        (sra_modify_assign): Use it to decide whether a use is uninitialized.

2012-02-06  Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/52047
        * trans-mem.c (expand_call_tm): Add an assertion.
        * calls.c (flags_from_decl_or_type): Add ECF_TM_PURE to 'no vops'
        functions.

2012-02-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50955
        * tree-ssa-loop-ivopts.c (get_computation_cost_at): Artificially
        raise cost of expressions that replace an address with an
        expression based on a different pointer.

2012-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/52129
        * calls.c (mem_overlaps_already_clobbered_arg_p): If val is
        CONST_INT_P, subtract resp. add crtl->args.pretend_args_size to it.

2012-02-06  Jonathan Wakely  <jwakely.gcc@gmail.com>

        PR c++/48680
        * doc/invoke.texi (C++ Dialect Options): Use @option markup for
        -Weffc++ and specify guidelines come from second edition.

2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.md (sibcall_internal, sibcall_value_internal)
        (sibcall_value_multiple_internal, call_split, call_internal_direct)
        (call_direct_split, call_value_split, call_value_internal_direct)
        (call_value_direct_split, call_value_multiple_split): Use jal and
        jal_macro attributes.

2012-02-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * reload1.c (reload_regs_reach_end_p): Replace with...
        (reload_reg_rtx_reaches_end_p): ...this function.
        (new_spill_reg_store): Update commentary.
        (emit_input_reload_insns): Don't clear new_spill_reg_store here.
        (emit_output_reload_insns): Check reload_reg_rtx_reaches_end_p
        before setting new_spill_reg_store.
        (emit_reload_insns): Use a separate loop to clear new_spill_reg_store.
        Use reload_reg_rtx_reaches_end_p instead of reload_regs_reach_end_p.
        Also use reload_reg_rtx_reaches_end_p when reading new_spill_reg_store
        for non-spill reload registers.

2012-02-05  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/52091
        * tree-vectorizer.h (vect_is_simple_use): Add an argument.
        (vect_is_simple_use_1): Likewise.
        * tree-vect-loop.c (vectorizable_reduction): Update calls
        to vect_is_simple_use_1 and vect_is_simple_use.
        (vectorizable_live_operation): Likewise.
        * tree-vect-patterns.c (widened_name_p,
        vect_recog_vector_vector_shift_pattern, check_bool_pattern): Likewise.
        * tree-vect-stmts.c (process_use, vect_get_vec_def_for_operand,
        vectorizable_call, vectorizable_conversion, vectorizable_assignment,
        vectorizable_shift,vectorizable_operation, vectorizable_store,
        vectorizable_load): Likewise.
        (vect_is_simple_cond): Add an argument, pass it to
        vect_is_simple_use_1.
        (vectorizable_condition): Update calls to vect_is_simple_cond,
        vect_is_simple_use.
        (vect_is_simple_use): Add an argument, the statement in which
        OPERAND is used.  Check that if OPERAND's def stmt is a double
        reduction phi node, the use is a phi node too.
        (vect_is_simple_use_1): Add an argument, pass it to
        vect_is_simple_use.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Update a call
        to vect_is_simple_use.

2012-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/52095
        * modulo-sched.c (dump_insn_locator): New function.
        (loop_canon_p, sms_schedule): Use it.

        PR rtl-optimization/52113
        * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
        even for decomposable shift/zext insns.

2012-02-03  Jakub Jelinek  <jakub@redhat.com>
            Zdenek Dvorak  <ook@ucw.cz>

        PR rtl-optimization/52092
        * loop-unswitch.c (unswitch_single_loop): Call copy_rtx_if_shared
        on get_iv_value result.

2012-02-02  Andrew Pinski  <apinski@cavium.com>

        PR middle-end/47982
        PR middle-end/43967
        * doc/libgcc.texi (__udivmoddi4/__udivmodti4): Fix documentation typo.

2012-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/48071
        * diagnostic.c (diagnostic_finish): Remove trailing newlines.

2012-02-02  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/49800
        * haifa-sched.c (sched_init): Call regstat_init_n_sets_and_refs.
        (sched_finish): Call regstat_free_n_sets_and_refs.

2012-02-02  Jia Liu  <proljc@gmail.com>

        * config/mips/mips-dspr2.md (mips_prepend): Mask operand 3 rather
        than operand 2.

2012-02-02  Jan Hubicka  <jh@suse.cz>
            Tom de Vries  <tom@codesourcery.com>

        PR middle-end/51998
        * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
        * varpool.c (varpool_analyze_pending_decls): Likewise.

2012-02-02  Sumanth G <sumanth.gundapaneni@kpitcummins.com>
            Jayant R Sonar <jayant.sonar@kpitcummins.com>

        * config.gcc: Add cr16-* support.

        * doc/extend.texi: Document cr16 extensions.
        * doc/install.texi: Document cr16 install.
        * doc/invoke.texi: Document cr16 options.
        * doc/md.texi: Document cr16 constraints.

        * common/config/cr16/cr16-common.c: New file.
        * config/cr16/cr16.c: New file.
        * config/cr16/cr16.h: New file.
        * config/cr16/cr16.md: New file.
        * config/cr16/cr16.opt: New file.
        * config/cr16/cr16-protos.h: New file.
        * config/cr16/predicates.md: New file.
        * config/cr16/constraints.md: New file.
        * config/cr16/t-cr16: New file.

2012-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/52086
        * config/i386/i386.md (*addqi_2 peephole with SImode addition): Check
        that operands[2] is either immediate, or q_regs_operand.

        PR tree-optimization/52073
        * tree-vect-stmts.c (vect_mark_relevant): When checking uses of
        a pattern stmt for pattern uses, ignore uses outside of the loop.

2012-02-01  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c: Resolve all AS1 and AS2 macros.
        * config/avr/avr.h (AS1, AS2, AS2C, AS3): Remove.
        (OUT_AS1, OUT_AS2): Remove.

2012-02-01  Georg-Johann Lay  <avr@gjlay.de>

        PR rtl-optimization/51374
        * combine.c (can_combine_p): Don't allow volatile_refs_p insns
        to cross other volatile_refs_p insns.

2012-02-01  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (fno-inline): Clarify documentation.
        (finline-small-functions): Likewise.
        (finline-functions): Likewise.
        * common.opt (finline): Adjust comment and documentation.
        (finline-small-functions): Clarify documentation.
        (finline-functions): Likewise.
        (finline-functions-called-once): Likewise.

2012-02-01  Tristan Gingold  <gingold@adacore.com>

        * c-typeck.c (composite_type): Keep mode for pointers.

2012-01-31  Richard Sandiford  <rdsandiford@googlemail.com>

        * function.h (regno_reg_rtx): Adjust comment.
        * reginfo.c (init_reg_modes_target): Only use the previous mode
        if it fits within one register.  Remove MIPS comment.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52058
        * combine.c (do_SUBST_LINK, SUBST_LINK): Guard with #ifndef HAVE_cc0.

2012-01-31  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("*ashr<mode>3_and"): Add missing z196 flag
        to srak instruction.

2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true condition.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52041
        PR bootstrap/52039
        PR target/51974
        * ipa-prop.c (detect_type_change_1): Call ao_ref_init.

2012-01-31  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51528
        * tree-sra.c (sra_modify_assign): Avoid copy-in/out for aggregate
        assigns.

2012-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/52041
        PR bootstrap/52039
        PR target/51974
        * ree.c (add_removable_extension): Change def_map argument
        to unsigned *, store in def_map 1 + offset into *insn_list vector
        instead of pointers into the vector.
        (find_removable_extensions): Adjust caller.

2012-01-30  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md: Resolve all AS1 and AS2 macros.
        Transform all "* quoted-c-code" to { c-code }.
        Remove redundant test for "optimize" in combine patterns.
        Move (include "avr-dimode.md") to end of file.

2012-01-30  Bin Cheng  <bin.cheng@arm.com>

        PR target/51835
        * config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
        for __aeabi_d2iz/__aeabi_d2uiz with hard-float.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52028
        * tree-loop-distribution.c (ldist_gen): Properly update
        virtual SSA form.

2012-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52027
        * dwarf2out.c (dwarf2out_switch_text_section): Don't call
        set_cur_line_info_table if not emitting debug info.

        PR tree-optimization/52046
        * tree-vect-patterns.c (check_bool_pattern): Give up if
        a comparison could throw.

        PR debug/52048
        * tree-ssa-tail-merge.c (local_def): Ignore debug uses.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52045
        * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
        SSA form if cfgcleanup did anything.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52045
        * ipa-inline-transform.c (inline_transform): Call execute_fixup_cfg
        before computing final todo.

2012-01-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51528
        * tree-sra.c (sra_modify_assign): Re-factor in preparation
        for PR51528 fix.

2012-01-30  Paolo Bonzini  <bonzini@gnu.org>

        * df-problems.c (df_kill_notes): Check that the use refers
        to the note under examination.

2012-01-30  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/51920
        * config/sparc/sparc.c (vector_init_fpmerge): Remove INNER_MODE
        parameter and use short-lived pseudos.
        (vector_init_faligndata): Remove INNER_MODE parameter and use loop.
        (sparc_expand_vector_init): Const-ify local variables and adjust
        calls to above functions.

2012-01-30  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (out_movqi_mr_r): Fix length computation.

2012-01-29  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Make usage of "compile time" and
        "run time"/"runtime" consistent throughout the file.

2012-01-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_option_override): Default to
        full IEEE compliance mode for Go language.

2011-01-29  Tijl Coosemans  <tijl@coosemans.org>

        * config/freebsd-spec.h [TARGET_LIBC_PROVIDES_SSP]
        (LINK_SSP_SPEC): Define.

2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/51871
        * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
        stubs.

2012-01-28  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Correct hyphenation of "floating point",
        "double precision", and related terminology throughout the file.

2012-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/52006
        * config/arm/arm.md (pic_add_dot_plus_eight peephole2): Use
        arm_general_register_operand predicate for operand 2 instead of
        register_operand.

2012-01-27  Ian Lance Taylor  <iant@google.com>

        PR go/47656
        * builtins.def (BUILT_IN_INIT_HEAP_TRAMPOLINE): Define.
        * builtins.c (expand_builtin_init_trampoline): Add onstack
        parameter.  Change caller.
        (expand_builtin): Handle BUILT_IN_INIT_HEAP_TRAMPOLINE.
        * tree.c (build_common_builtin_nodes): Declare
        __builtin_init_heap_trampoline.

2012-01-27  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (lpm_reg_rtx, lpm_addr_reg_rtx,
        tmp_reg_rtx, zero_reg_rtx, all_regs_rtx, rampz_rtx): Make global.
        * config/avr/avr.c: Ditto.
        (avr_regnames): Remove because unused.
        * config/avr/avr.md (*cpse.ne): New peephole.
        (*cpse.eq): New peephole from former cpse peepholes.

2012-01-27  Michael Eager  <eager@eagercon.com>

        * config/microblaze.c (microblaze_emit_compare): Correct
        test after pcmp instruction.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/52020
        * tree-sra.c (sra_modify_assign): Do not transform clobbers.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        * ipa-pure-const.c (check_stmt): Clobbers do not make a
        function non-const/pure.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50444
        * tree-sra.c (build_ref_for_offset): Properly adjust the
        MEM_REF type for unaligned accesses.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50444
        * expr.c (mem_ref_refers_to_non_mem_p): New function.
        (expand_assignment): Use it.  Properly handle misaligned
        bases when expanding stores to component references.
        (expand_expr_real_1): Use mem_ref_refers_to_non_mem_p and
        refactor that case.

2012-01-27  Andrey Belevantsev  <abel@ispras.ru>

        PR middle-end/51389
        * Makefile.in (tree-data-ref.o): Depend on $(PARAMS_H).
        * tree-data-ref.h (find_data_references_in_loop): Remove declaration.
        * tree-data-ref.c (find_data_references_in_loop): Make static.
        (compute_all_dependences): Change return type to bool.  Bail out
        for too many datarefs in a loop.  Move the hunk resetting the data
        dependences vector from ...
        (compute_data_dependences_for_loop): ... here.  Account for
        compute_all_dependences returning false.
        (compute_data_dependences_for_bb): Likewise.
        * params.def (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS): New param.
        * doc/invoke.texi (loop-max-datarefs-for-datadeps): Document it.

2012-01-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51959
        * expr.c (store_field): Use the alias-set of the scratch memory
        for storing to it.

2012-01-27  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/51990
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
        WITH_SIZE_EXPR.
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): Same.

2012-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR debug/52001
        * var-tracking.c (reverse_op): Don't add any reverse operation
        if V already has any constant locations.

2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi: Correct usage of "command line" (noun)
        vs "command-line" (adjective) throughout.

2012-01-27  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (Language Independent Options): Move
        -Wcoverage-mismatch blurb from here....
        (Warning Options): ...to here.

2012-01-27  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_option_override_internal):
        Set rs6000_always_hint to false for 476.

2012-01-27  Matthias Klose  <doko@ubuntu.com>

        * gcc.c (add_sysrooted_prefix): Remove trailing dir separator from
          system root.
        * incpath.c (add_standard_paths): Likewise.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * config/m68k/m68k.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
        * config/m68k/sync.md (atomic_test_and_set): Rename from
        sync_test_and_setqi and adjust the operands.
        (atomic_test_and_set_1): Rename from sync_test_and_setqi_1
        and unconditionally enable.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * config/sparc/sparc.c (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
        * config/sparc/sync.md (atomic_test_and_set): Only handle QImode.
        (ldstub): Rename from ldstubqi.
        (ldstub<I24MODE>): Remove.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * target.def (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): New.
        * c-cppbuiltin.c (cpp_atomic_builtins): Define
        __GCC_ATOMIC_TEST_AND_SET_TRUEVAL.
        * doc/tm.texi.in (TARGET_ATOMIC_TEST_AND_SET_TRUEVAL): Add doc hook.
        * doc/tm.texi: Rebuild.

2012-01-27  Richard Henderson  <rth@redhat.com>

        * optabs.c (gen_atomic_test_and_set): Remove default.
        (maybe_emit_atomic_test_and_set): Use maybe_expand_insn.

2012-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51978
        * ree.c (make_defs_and_copies_lists): Change set_pat type to const_rtx.
        (combine_reaching_defs): Likewise.
        (struct re_info): Remove.
        (add_removable_extension): Remove x and data arguments,
        add insn, insn_list and def_map.  Use the arguments directly
        instead of using struct re_info.
        (find_removable_extensions): Don't call add_removable_extension
        through note_stores, instead just call it with single_set
        result if non-NULL.
        (find_and_remove_re): Pass curr_cand->expr instead of
        PATTERN (curr_cand->insn) as set_pat argument to combine_reaching_defs.

2012-01-26  Michael Matz  <matz@suse.de>

        PR tree-optimization/46590
        * cfgexpand.c: Revert last change (r183305).
        * gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
        regs.
        * tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
        checking for emptiness.

2012-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51895
        * expr.c (expand_expr_real_1): Handle BLKmode MEM_REF of
        non-addressable non-BLKmode base correctly.

2012-01-26  Michael Matz  <matz@suse.de>

        PR tree-optimization/48794
        * tree-eh.c (remove_unreachable_handlers_no_lp): Don't remove
        regions referenced from RESX/EH_DISPATCH.

2012-01-26  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.h: Make BRANCH_COST an option.
        * config/s390/s390.opt: New option -mbranch-cost.

2012-01-26  Richard Henderson  <rth@redhat.com>

        Revert 2012-01-24 change:
        * trans-mem.c (requires_barrier): Do not instrument thread local
        variables and emit save/restore for them.

2012-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51986
        * sched-deps.c (sched_get_condition_with_rev_uncached): Don't test
        for pat == 0.

2012-01-25  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_small_data_pattern_1): Don't process
        ASM_OPERANDS.

2012-01-25  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        Rename __pgm to __flash.
        Rename __pgm1 to __flash1.
        Rename __pgm2 to __flash2.
        Rename __pgm3 to __flash3.
        Rename __pgm4 to __flash4.
        Rename __pgm5 to __flash5.
        Rename __pgmx to __memx.
        * doc/extend.texi (AVR Named Address Spaces)
        Rename address space names as indicated above.
        * config/avr/avr.c (avr_addrspace): Ditto.

        * config/avr/avr-protos.h
        (avr_mem_pgmx_p): Rename to avr_mem_memx_p.
        (avr_mem_pgm_p): Rename to avr_mem_flash_p.
        * config/avr/predicates.md: Ditto.
        * config/avr/avr.c Ditto, and
        (avr_decl_pgmx_p): Rename to avr_decl_memx_p.
        (avr_decl_pgm_p): Rename to avr_decl_flash_p.

        * config/avr/avr.h (ADDR_SPACE_PGM): Rename to ADDR_SPACE_FLASH.
        (ADDR_SPACE_PGM1): Rename to ADDR_SPACE_FLASH1.
        (ADDR_SPACE_PGM2): Rename to ADDR_SPACE_FLASH2.
        (ADDR_SPACE_PGM3): Rename to ADDR_SPACE_FLASH3.
        (ADDR_SPACE_PGM4): Rename to ADDR_SPACE_FLASH4.
        (ADDR_SPACE_PGM5): Rename to ADDR_SPACE_FLASH5.
        (ADDR_SPACE_PGMX): Rename to ADDR_SPACE_MEMX.
        * config/avr/avr.c: Ditto.
        * config/avr/avr.md: Ditto.

2012-01-25  Jason Merrill  <jason@redhat.com>

        PR c++/51992
        * tree.c (find_decls_types_in_node): Walk gimple_call_fntype.

2012-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51987
        * tree-data-ref.c (get_references_in_stmt): Handle references in
        non-volatile GIMPLE_ASM.

2012-01-25  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_reference_eq): Also compare if both
        bases are dereferenced.

2012-01-25  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/48374
        * sel-sched-ir.h (get_all_loop_exits): Check for zero successors.

2012-01-25  Andrey Belevantsev  <abel@ispras.ru>

        * tree-predcom.c (tree_predictive_commoning_loop): Bail out when
        compute_data_dependences_for_loop returns false.
        * tree-parloops.c (loop_parallel_p): Likewise.

2012-01-25  Richard Guenther  <rguenther@suse.de>

        * tree.h (get_pointer_alignment_1): Declare.
        * builtins.c (get_pointer_alignment_1): New function.
        (get_pointer_alignment): Use it.

2012-01-25  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR rtl-optimization/48308
        * combine.c (enum undo_kind): Add UNDO_LINKS.
        (struct undo): Add member l to other_contents and where.
        (do_SUBST_LINK): New.
        (SUBST_LINK): New.
        (try_combine): Handle LOG_LINKS for the dummy i1 case.
        (undo_all): Handle UNDO_LINKS.

2012-01-25  Richard Henderson  <rth@redhat.com>

        * optabs.c (maybe_emit_atomic_test_and_set): Allow non-QImode
        mem inputs.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * optabs.c (gen_atomic_test_and_set): Use each argument.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips-ps-3d.md (mips_addr_ps, reduc_splus_v2sf)
        (mips_cvt_pw_ps, mips_cvt_ps_pw, mips_mulr_ps, mips_cabs_cond_<fmt>)
        (mips_cabs_cond_4s, mips_cabs_cond_ps, bc1any4t, bc1any4f, bc1any2t)
        (bc1any2f, mips_rsqrt1_<fmt>, mips_rsqrt2_<fmt>, mips_recip1_<fmt>)
        (mips_recip2_<fmt>): Require TARGET_MIPS3D rather than
        TARGET_PAIRED_SINGLE_FLOAT.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * doc/rtl.texi (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
        (in_struct, return_val): Remove MEM documentation.
        * rtl.h (rtx_def): Remove MEM meanings from in_struct and return_val.
        (MEM_IN_STRUCT_P, MEM_SCALAR_P): Delete.
        (MEM_COPY_ATTRIBUTES): Remove references to MEM_IN_STRUCT_P
        and MEM_SCALAR.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
        * cfgexpand.c (add_alias_set_conflicts): Likewise.
        * expr.c (store_field): Likewise.
        * function.c (assign_stack_temp_for_type): Likewise.
        * ifcvt.c (noce_try_cmove_arith): Likewise.
        * reload1.c (reload): Likewise.
        * config/alpha/alpha.c (alpha_set_memflags_1): Likewise.
        (alpha_set_memflags): Likewise.
        * config/m32c/m32c.c (m32c_immd_dbl_mov): Nullify.

2012-01-24  Richard Sandiford  <rdsandiford@googlemail.com>

        * rtl.h (true_dependence, canon_true_dependence): Remove varies
        parameter.
        * alias.c (fixed_scalar_and_varying_struct_p): Delete.
        (true_dependence_1, write_dependence_p, may_alias_p): Don't call it.
        (true_dependence_1, true_dependence, canon_true_dependence): Remove
        varies parameter.
        * cselib.c (cselib_rtx_varies_p): Delete.
        (cselib_invalidate_mem): Update call to canon_true_dependence.
        * dse.c (record_store, check_mem_read_rtx): Likewise.
        (scan_reads_nospill): Likewise.
        * cse.c (check_dependence): Likewise.
        (cse_rtx_varies_p): Delete.
        * expr.c (safe_from_p): Update call to true_dependence.
        * ira.c (validate_equiv_mem_from_store): Likewise.
        (memref_referenced_p): Likewise.
        * postreload-gcse.c (find_mem_conflicts): Likewise.
        * sched-deps.c (sched_analyze_2): Likewise.
        * store-motion.c (load_kills_store): Likewise.
        * config/frv/frv.c (frv_registers_conflict_p_1): Likewise.
        * gcse.c (mems_conflict_for_gcse_p): Likewise.
        (compute_transp): Update call to canon_true_dependence.

2012-01-25  Richard Henderson  <rth@redhat.com>

        * optabs.c (CODE_FOR_atomic_test_and_set): Provide default.
        (maybe_emit_atomic_test_and_set): New.
        (expand_sync_lock_test_and_set): Use it.
        (expand_atomic_test_and_set): Likewise.
        * doc/extend.texi (__atomic_test_and_set): Adjust the docs to match
        the implementation; clarify implementation defined details.
        * doc/md.texi (atomic_test_and_set): Document.

2012-01-25  Richard Henderson  <rth@redhat.com>

        * config/sparc/predicates.md (zero_or_v7_operand): Use match_code.

2012-01-25  Richard Henderson  <rth@redhat.com>

        PR target/51968
        * config/arm/arm.c (neon_split_vcombine): Emit deleted note
        to effect no-op split.

2012-01-24  Aldy Hernandez  <aldyh@redhat.com>

        PR lto/51698
        * builtin-types.def: (BT_CONST_DOUBLE_PTR): New.
        (BT_FN_VOID_PTR_CONST_PTR_SIZE): New.
        (BT_FN_VOID_PTR_INT_SIZE): New.
        (BT_FN_UINT_UINT_VAR): Remove.
        (BT_FN_UINT32_UINT32_VAR): New.
        (BT_FN_DOUBLE_VPTR): Remove.
        (BT_FN_DOUBLE_CONST_DOUBLE_PTR): New.

        * gtm-builtins.def (_ITM_abortTransaction): Set return type to void.
        (_ITM_changeTransactionMode): Same.
        (_ITM_memmoveRtWt): Change return type to void.
        (_ITM_memcpyRtWt): Same.
        (_ITM_memsetW): Same.
        (_ITM_RaRD): Change types to double.
        (_ITM_RD): Same.
        (_ITM_RaWD): Same.
        (_ITM_RfWD): Same.

        * builtins.def (DEF_TM_BUILTIN): Set BOTH_P to true.

2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
            Patrick Marlier  <patrick.marlier@gmail.com>

        * trans-mem.c (requires_barrier): Do not instrument thread local
        variables and emit save/restore for them.

2012-01-24  Jason Merrill  <jason@redhat.com>

        PR c++/51812
        * cgraphunit.c (cgraph_decide_is_function_needed): Don't always
        output static aliases.

2012-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR driver/47249
        * common.opt (-pie, -shared, pie, shared): Change from Common to
        Driver.
        * gcc.c (display_help): Display help for -pie and -shared.

2012-01-24  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        * doc/extend.texi (AVR Named Address Spaces): Move sample code up.
        Remove note on size/offset limitation.
        (AVR Variable Attributes): Add example how to read data located
        with progmem.  Refer to named address spaces.
        * doc/invoke.texi (AVR Options): Fix typo.

2012-01-24  Richard Guenther  <rguenther@suse.de>

        Forward-port to trunk
        2010-09-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/45678
        * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: If
        op0 isn't sufficiently aligned and there is movmisalignM
        insn for mode, use it to load op0 into a temporary register.

2012-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR target/51957
        * target.def (const_not_ok_for_debug_p): New hook.
        * doc/tm.texi.in (TARGET_CONST_NOT_OK_FOR_DEBUG_P): New hook
        documentation.
        * doc/tm.texi: Regenerated.
        * dwarf2out.c (const_ok_for_output_1): If
        targetm.const_not_ok_for_debug_p returns true, fail.
        * config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): New
        function.
        (TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.

2012-01-23  Kai Tietz  <ktietz@redhat.com>

        PR target/51900
        * config/i386/predicates.md (symbolic_operand): Allow
        UNSPEC_PCREL as PIC expression for lea.
        * config/i386/winnt.c (i386_pe_binds_local_p): Reworked.
        * config/i386/i386.c (ix86_delegitimize_address): Handle
        UNSPEC_PCREL for none-MEM, too.

2012-01-23  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c (ipa_tm_create_version): Set externally_visible.
        (ipa_tm_create_version_alias): Same.

2012-01-23  Uros Bizjak  <ubizjak@gmail.com>

        PR libitm/51830
        * builtin-types.def (BT_FN_UINT_UINT_VAR): New.
        * gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.

2012-01-23  Aldy Hernandez  <aldyh@redhat.com>
            Patrick Marlier  <patrick.marlier@gmail.com>
            Iain Sandoe  <developer@sandoe-acoustics.co.uk>

        PR lto/51916
        * lto-wrapper.c (run_gcc): Pass the LTO section name to
        simple_object_start_read.

2012-01-23  Richard Guenther  <rguenther@suse.de>


        PR tree-optimization/51895
        * tree-sra.c (decide_one_param_reduction): Avoid sub-optimal
        parameter decomposition into BLKmode components.

2012-01-23  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-structalias.c (intra_create_variable_infos): Do not create
        fake variables for restrict-qualified pointers whose pointed-to type
        contains a placeholder.

2012-01-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51949
        * ipa-split.c (execute_split_functions): Do not split malloc functions.

2012-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51933
        * ree.c (transform_ifelse): Return true right away if dstreg is
        already wider or equal to cand->mode.
        (enum ext_modified_kind, struct ext_modified, ext_state): New types.
        (make_defs_and_copies_lists): Remove defs_list and copies_list
        arguments, add state argument, just truncate state->work_list
        instead of always allocating and freeing the vector.  Assert that
        get_defs succeeds instead of returning 2.  Changed return type to bool.
        (merge_def_and_ext): Add state argument.  If SET_DEST doesn't
        have ext_src_mode, see if it has been modified already with the
        right kind of extension and has been extended before from the
        ext_src_mode.  If SET_DEST is already wider or equal to cand->mode,
        just return true.  Remember the original mode in state->modified array.
        (combine_reaching_defs): Add state argument.  Don't allocate and
        free here def_list, copied_list and vec vectors, instead just
        VEC_truncate the vectors in *state.  Don't handle outcome == 2 here.
        (find_and_remove_re): Set DF_DEFER_INSN_RESCAN df flag.
        Add state variable, clear vectors in it, initialize state.modified
        if needed.  Free all the vectors at the end and state.modified too.
        Don't skip a candidate if the extension expression has been modified.

2012-01-22  Douglas B Rupp  <rupp@gnat.com>

        PR target/47096
        * config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
         configurations. Change triplet to i[34567]86-*-interix[3-9]*.
        (extra_options) interix.opt -> i386/interix.opt"
        (extra_objs):Add winnt-stubs.o
        * configure.ac: Add interix to target_os .comm on PE check.
        * configure: Regenerate.
        * config/interix3.h: Delete and move bits to..
        * config/interix.h: Delete and move bits to..
        * config/i386/i386-interix3.h: Delete and move bits to..
        * config/i386/i386-interix.h: ..here.
        (TARGET_CPU_DEFAULT): Remove redefinition.
        (TARGET_ASM_CONSTRUCTOR): Undefine.
        (SUBTARGET_SWITCHES): Define for ms-bitfields.
        (TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
        (PTRDIFF_TYPE): Define.
        (LONG_DOUBLE_TYPE_SIZE): Define.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
        (SUBTARGET_OVERRIDE_OPTIONS): Remove.
        (TARGET_SECTION_TYPE_FLAGS): Define.
        (ASM_DECLARE_FUNCTION_NAME): Define.
        (ASM_OUTPUT_EXTERNAL): Define.
        (ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
        (ASM_OUTPUT_ALIGNED_BSS): Define.
        (PCC_BITFIELD_TYPE_MATTERS): Define.
        (USE_CONST_SECTION): Define.
        (SUBTARGET_ENCODE_SECTION_INFO): Remove.
        (TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
        (SUPPORTS_ONE_ONLY): Remove.
        (I386_PE_STRIP_ENCODING): Define.
        * config/interix.opt: Delete and move bits to..
        * config/i386/interix.opt: ..here. New.
        (mpe-aligned-commons): Add.
        * config/i386/t-interix: Add copyright header.
        (winnt-stubs.o): Add rule.

2012-01-22  Jason Merrill  <jason@redhat.com>

        PR c++/51832
        * varpool.c (varpool_analyze_pending_decls): Copy DECL_EXTERNAL
        for extra name aliases.

2012-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/51924
        * ree.c (combine_set_extension): Improve debugging message.
        (combine_reaching_defs): Likewise.
        (get_defs): Rename confusingly named variable.
        (find_and_remove_re): Skip a candidate if the extension expression has
        been modified.

2012-01-21  Robert Millan  <rmh@gnu.org>
            Gerald Pfeifer  <gerald@pfeifer.com>

        * config/kfreebsd-gnu.h (GNU_USER_DYNAMIC_LINKERX32): New macro.
        (GNU_USER_DYNAMIC_LINKER): Adjust indentation.

2012-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51914
        * tree-vect-stmts.c (vectorizable_conversion): For
        cvt_type && modifier == WIDEN, put temporary with cvt_type
        at the beginning of vec_dsts and set vec_dest to temporary
        with vectype_out.

2012-01-20  Eric Botcazou  <ebotcazou@adacore.com>

        * cfgrtl.c (rtl_dump_bb): Do not dump insns for {ENTRY|EXIT}_BLOCK.

2011-01-20  Tijl Coosemans  <tijl@coosemans.org>

        * config/i386/i386.c: Fix checks for !TARGET_MACHO.
        * config/rs6000/rs6000.c: Likewise.

2012-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR target/51915
        * config/arm/arm.c (arm_count_output_move_double_insns): Call
        output_move_double on a copy of operands array.

2012-01-20  Cary Coutant  <ccoutant@google.com>
            Dodji Seketeli  <dodji@redhat.com>

        PR debug/45682
        * dwarf2out.c (copy_declaration_context): Return ref to parent
        of declaration DIE, if necessary.
        (remove_child_or_replace_with_skeleton): Add new parameter; update
        caller.  Place skeleton DIE under parent DIE of original declaration.
        Move call to copy_declaration_context to here ...
        (break_out_comdat_types): ... from here.

2012-01-20  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR rtl-optimization/51856
        * reload.c (find_reloads_subreg_address): Set the address_reloaded
        flag to reloaded.

2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/51819
        * config/arm/arm.c (arm_print_operand): Correct output of alignment
        hints for neon loads and stores.

2012-01-20  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        PR target/50887
        * doc/extend.texi (Named Address Spaces): Split into subsections.
        (AVR Named Address Spaces): New subsection.
        (M32C Named Address Spaces): New subsection.
        (RL78 Named Address Spaces): New subsection.
        (SPU Named Address Spaces): New subsection.
        (Variable Attributes): New anchor "AVR Variable Attributes".
        (AVR Variable Attributes): Rewrite and avoid wording
        "address space" in this context.
        * doc/invoke.texi (AVR Options): Rewrite and add documentation
        for -maccumulate-args, -mbranch-cost=, -mrelax, -mshort-calls.
        (AVR Built-in Macros): New subsubsection therein.
        * doc/md.texi (AVR constraints): Remove "C04", "R".

2012-01-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51903
        * tree-ssa-pre.c (eliminate): Properly purging of EH edges
        when removing stmts.

2012-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/50313
        * config/arm/arm.c (arm_load_pic_register): Use
        gen_pic_load_addr_unified. Delete calls to gen_pic_load_addr_32bit
        , gen_pic_add_dot_plus_eight and gen_pic_add_dot_plus_four.
        (arm_pic_static_addr): Likewise.
        (arm_rtx_costs_1): Adjust cost for UNSPEC_PIC_UNIFIED.
        (arm_note_pic_base): Handle UNSPEC_PIC_UNIFIED.
        * config/arm/arm.md (UNSPEC_PIC_UNIFIED): Define.
        (pic_load_addr_unified): New.

2012-01-20  Andrey Belevantsev  <abel@ispras.ru>

        PR target/51106
        * function.c (instantiate_virtual_regs_in_insn): Use
        delete_insn_and_edges when removing a wrong asm insn.

2012-01-19  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/40761
        * ira-int.h (struct ira_loop_tree_node): Add comment for member loop.
        Add new member loop_num.
        (IRA_LOOP_NODE_BY_INDEX): Modify the check.
        (ira_build): Remove the parameter.

        * ira.c (ira_print_disposition): Use loop_num instead of loop->num.
        (ira.c): Do not build CFG loops for one region allocation.  Remove
        argument from ira_build call.

        * ira-build.c (init_loop_tree_node): New function.
        (create_loop_tree_nodes): Use it.  Separate the case when CFG
        loops are not built.
        (more_one_region_p): Check current_loops.
        (finish_loop_tree_nodes): Separate the case when CFG loops are not
        built.
        (add_loop_to_tree): Process loop equal to NULL too.
        (form_loop_tree): Separate the case when CFG loops are not built.
        Use explicitly number for the root.
        (rebuild_regno_allocno_maps, create_loop_tree_node_allocnos): Add
        an assertion.
        (ira_print_expanded_allocno, loop_compare_func): Use loop_num
        instead of loop->num.
        (mark_loops_for_removal): Ditto.  Use loop_num instead of loop->num.
        (mark_all_loops_for_removal): Ditto.
        (remove_unnecessary_regions): Separate the case when CFG loops
        are not built.
        (ira_build): Remove the parameter.  Use explicit number of regions
        when CFG loops are not built.

        * ira-color.c (print_loop_title): Separate the case for the root node.
        Use loop_num instead of loop->num.
        (move_spill_restore): Use loop_num instead of loop->num.

        * ira-emit.c (setup_entered_from_non_parent_p): Add an assertion.
        (change_loop): Ditto.
        (change_loop): Use loop_num instead of loop->num.

        * ira-lives.c (process_bb_node_lives): Ditto.

        * ira-costs.c (print_allocno_costs, find_costs_and_classes): Ditto.

        * ira-conflicts.c (print_allocno_conflicts): Ditto.

2012-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR libmudflap/40778
        * tree-mudflap.c (mf_artificial): New function.
        (execute_mudflap_function_ops, execute_mudflap_function_decls,
        mx_register_decls, mudflap_enqueue_decl): Use it.

        PR target/51876
        * config/arm/neon.md (*neon_vswp<mode>): Fix up operand
        numbers in the insn pattern.

2012-01-19  Michael Matz  <matz@suse.de>

        PR tree-optimization/46590
        * cfgexpand.c (add_scope_conflicts_1): New old_conflicts argument,
        use it in remembering which conflicts we already created.
        (add_scope_conflicts): Adjust call to above, (de)allocate helper
        bitmap.

2012-01-19  Aldy Hernandez  <aldyh@redhat.com>

        PR lto/51280
        * lto-wrapper.c (run_gcc): Pass -fgnu_tm on.
        (merge_and_complain): Same.

2012-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/50237
        * config/initfini-array.h: Guard content of the header
        with #ifdef HAVE_INITFINI_ARRAY.
        * configure.ac: Move gcc_AC_INITFINI_ARRAY much later into the file.
        Add initfini-array.h to tm_file here.
        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): For non-ia64 do a linker test.
        * config.gcc: Don't add initfini-array.h to tm_file here.
        * configure: Regenerated.

2012-01-19  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/51505
        * df-problems.c (df_kill_notes): New parameter live. Update comment.
        Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
        (df_note_bb_compute): Update the call to df_kill_notes.

2012-01-18  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c (requires_barrier): Remove call to is_global_var.

2012-01-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa.c (useless_type_conversion_p): Remove special-casing
        of conversions to void *.

2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/50325
        PR middle-end/51192
        * optabs.h (simplify_expand_binop): Declare.
        * optabs.c (simplify_expand_binop): Make global.
        * expmed.c (store_bit_field_1): Use simplify_expand_binop on big
        endian targets if the source cannot be exactly covered by word
        mode chunks.

2012-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51872
        * hard-reg-set.h (struct hard_reg_set_container): New type.
        * target.h (struct hard_reg_set_container): Forward declare.
        * target.def (set_up_by_prologue): New target hook.
        * doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
        * doc/tm.texi: Regenerated.
        * function.c (thread_prologue_and_epilogue_insns): Change
        set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
        Call targetm.set_up_by_prologue on it.
        * config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
        (TARGET_SET_UP_BY_PROLOGUE): Redefine to it.

2012-01-17  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.c (rx_can_use_simple_return): New function.
        * config/rx/rx-protos.h (rx_can_use_simple_return): Prototype.
        * config/rx/rx.md (return): Predicate on rx_can_use_simple_return.

2012-01-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51782
        * expr.c (expand_assignment): Take address-space information
        from the address operand of MEM_REF and TARGET_MEM_REF.
        (expand_expr_real_1): Likewise.

2012-01-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * ira.c (do_reload): Make sure ira_dump_file is re-set if no
        reload dump is requested.

2012-01-17  Aldy Hernandez  <aldyh@redhat.com>

        PR other/51165
        * trans-mem.c (requires_barrier): Call may_be_aliased.

2012-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51877
        * tree-ssa-tail-merge.c (gimple_equal_p): Don't return true whenever
        call arguments and fndecls compare equal, instead return false if they
        don't.  Return true only if lhs1 and lhs2 are either both NULL, or
        both SSA_NAMEs that are valueized the same, or they satisfy
        operand_equal_p.

2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_target_dl_iterate_phdr): Only check on
        Solaris 11+.
        * configure: Regenerate.

2012-01-16  Jan Hubicka  <jh@suse.cz>

        PR c/12245
        PR c++/14179
        * convert.c (convert_to_integer): Use fold_convert for
        converting an INTEGER_CST to integer type.

2012-01-16  Jason Merrill  <jason@redhat.com>

        PR c++/14179
        * vec.c (vec_gc_o_reserve_1): Use ggc_round_alloc_size.

2012-01-16  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51860
        * config/s390/s390.c (s390_chunkify_start): Don't skip
        call insns followed by NOTE_INSN_CALL_ARG_LOCATION note.  Skip
        NOTE_INSN_VAR_LOCATION and NOTE_INSN_CALL_ARG_LOCATION notes.
        If insn is followed by NOTE_INSN_VAR_LOCATION or
        NOTE_INSN_CALL_ARG_LOCATION notes, insert jump after all those notes.
        Don't use location of note insns.

        PR tree-optimization/51865
        * tree-inline.c (tree_function_versioning): Call remap_decl
        on DECL_RESULT whenever it has VOID_TYPE_P type.

2012-01-15  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips16_build_call_stub): Don't use a stub
        for calls to locally-binding MIPS16 functions if only the return
        type uses float regs.

2012-01-15  Chung-Lin Tang  <cltang@codesourcery.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips-protos.h (SYMBOL_FORCE_TO_MEM): Delete.
        (SYMBOL_32_HIGH): Likewise.
        (mips_output_tls_reloc_directive): Declare.
        * config/mips/mips.h (PIC_FUNCTION_ADDR_REGNUM): Move to mips.md.
        (mips_use_pcrel_pool_p, mips_lo_relocs, mips_hi_relocs): Declare.
        * config/mips/mips.c (mips_use_pcrel_pool_p): New variable.
        (mips_lo_relocs, mips_hi_relocs): Make extern.
        (mips16_stub_function): Move up file.
        (mips_classify_symbol): Remove SYMBOL_FORCE_TO_MEM handling.
        (mips_symbolic_constant_p): Likewise.  Remove SYMBOL_32_HIGH too.
        (mips_symbol_insns_1): Likewise.  Check mips_use_pcrel_pool_p.
        (mips_cannot_force_const_mem): Use mips_use_pcrel_pool_p instead of
        SYMBOL_FORCE_TO_MEM.  Only check mips_tls_symbol_ref_1 if it's false.
        (mips_get_tp): Add MIPS16 support.
        (mips_legitimize_tls_address): Remove MIPS16 sorry().
        Generalize DTPREL and TPREL handling.
        (mips_init_relocs): Initialize mips_use_pcrel_pool_p.
        Add MIPS16 TLS support.
        (mips_output_tls_reloc_directive): New function.
        (mips16_rewrite_pool_refs): Ignore UNSPEC_TLS_GET_TPs.
        * config/mips/predicates.md (symbolic_operand_with_high)
        (tls_reloc_operand): New predicates.
        (force_to_mem_operand): Use mips_use_pcrel_pool_p.
        * config/mips/mips.md (UNSPEC_UNSHIFTED_HIGH): New unspec.
        (PIC_FUNCTION_ADDR_REGNUM): Moved from mips.h.
        (*unshifted_high): New instruction.  Use it for MIPS16 high splitter.
        (consttable_tls_reloc, tls_get_tp_mips16_<mode>): New patterns.
        (*tls_get_tp_mips16_call_<mode>): Likewise.

2012-01-15  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/51821
        * recog.c (peep2_find_free_register): Determine clobbered registers
        from insn pattern.

2012-01-14  Denis Chertykov  <chertykov@gmail.com>

        PR target/50925
        * config/avr/avr-protos.h: Revert change of 2012-01-09.
        * config/avr/avr.c: Likewise.
        * config/avr/avr.h: Likewise.

2012-01-13  Ian Lance Taylor  <iant@google.com>

        PR c++/50012
        * tree.h (TYPE_QUALS): Add cast to int.
        (TYPE_QUALS_NO_ADDR_SPACE): Likewise.

2012-01-13  Ian Lance Taylor  <iant@google.com>

        * ipa-cp.c (ipa_get_indirect_edge_target): Add typecasts when
        comparing param_index to VEC_length result.

2012-01-13  Steven Bosscher  <steven@gcc.gnu.org>

        * c-decl.c: Do not include tree-mudflap.h
        * tree-optimize.c: Likewise.
        * Makefile.in: Update dependencies.

2012-01-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/8081
        * gimplify.c (gimplify_modify_expr_rhs): For calls with a
        variable-sized result always use RSO.

2012-01-12  DJ Delorie  <dj@redhat.com>

        * cfgexpand.c (convert_debug_memory_address): Allow any valid
        pointer type, not just the default pointer type.

2012-01-09  Richard Henderson  <rth@redhat.com>
            Denis Chertykov  <chertykov@gmail.com>

        PR target/50925
        * config/avr/avr-protos.h (avr_hard_regno_nregs): Declare.
        * config/avr/avr.c (avr_can_eliminate): Simplify.
        (avr_initial_elimination_offset): Likewise.
        (avr_prologue_setup_frame): Use hard_frame_pointer_rtx.
        (expand_epilogue): Likewise.
        (avr_legitimize_address): Gut.
        (avr_legitimize_reload_address): Use hard_frame_pointer_rtx.
        (avr_hard_regno_nregs): New.
        (avr_hard_regno_ok): Allow only Pmode for arg and frame_pointers.
        (avr_regno_mode_code_ok_for_base_b): Handle arg and frame pointers.
        * config/avr/avr.h (FIXED_REGISTERS): Adjust arg pointer,
        add soft frame pointer.
        (CALL_USED_REGISTERS): Likewise.
        (REG_CLASS_CONTENTS): Likewise.
        (REGISTER_NAMES): Likewise.
        (HARD_REGNO_NREGS): Use avr_hard_regno_nregs.
        (HARD_FRAME_POINTER_REGNUM): New.
        (FRAME_POINTER_REGNUM): Use soft frame pointer.
        (ELIMINABLE_REGS): Eliminate from the soft frame pointer,
        remove the HARD_FRAME_POINTER self-elimination.

2012-01-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51756
        * config/avr/avr.c (avr_encode_section_info): Test for absence of
        DECL_EXTERNAL when checking for initializers of progmem variables.

2012-01-12  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51799
        * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
        that the last operation is a type demotion.

2012-01-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*zero_extendsidi2_rex64): Correct movl template.
        (x86_shift<mode>_adj_1): Remove operand constraint from operand 3.

2012-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51796
        * combine.c (distribute_notes): If i3 is a noreturn call,
        allow old_size to be equal to args_size and make sure the
        noreturn call gets REG_ARGS_SIZE note.
        * expr.c (fixup_args_size_notes): Put REG_ARGS_SIZE notes
        on noreturn calls even when the delta is 0.

2012-01-11  Nathan Sidwell  <nathan@acm.org>

        * gcov.c (STRING_SIZE): Remove.
        (generate_results): Erase annotations for source files with no
        coverage information.
        (read_line): New.
        (output_lines): Use it.

2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.h (gimplify_body): Remove first argument.
        * gimplify.c (copy_if_shared): Add DATA argument.  Do not create the
        pointer set here, instead just pass DATA to walk_tree.
        (unshare_body): Remove BODY_P argument and adjust.  Create the pointer
        set here and invoke copy_if_shared on the size trees of DECL_RESULT.
        (unvisit_body): Likewise, but with unmark_visited.
        (gimplify_body): Remove BODY_P argument and adjust.
        (gimplify_function_tree): Adjust call to gimplify_body.
        * omp-low.c (finalize_task_copyfn): Likewise.

2012-01-11  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (build_function_decl_skip_args): Add boolean parameter.
        (build_function_type_skip_args): Delete.
        * tree.c (build_function_type_skip_args): Make static and add
        SKIP_RETURN parameter.  Fix thinko in the handling of variants.
        (build_function_decl_skip_args): Add SKIP_RETURN parameter and
        pass it to build_function_type_skip_args.
        * cgraph.h (cgraph_function_versioning): Add boolean parameter.
        (tree_function_versioning): Likewise.
        * cgraph.c (cgraph_create_virtual_clone): Adjust call to
        build_function_decl_skip_args.
        * cgraphunit.c (cgraph_function_versioning): Add SKIP_RETURN parameter
        and pass it to build_function_decl_skip_args/tree_function_versioning.
        (cgraph_materialize_clone): Adjust call to tree_function_versioning.
        * ipa-inline-transform.c (save_inline_function_body): Likewise.
        * trans-mem.c (ipa_tm_create_version): Likewise.
        * tree-sra.c (modify_function): Ditto for cgraph_function_versioning.
        * tree-inline.c (declare_return_variable): Remove always-true test.
        (tree_function_versioning): Add SKIP_RETURN parameter.  If the function
        returns non-void and SKIP_RETURN, create a void-typed RESULT_DECL.
        * ipa-split.c (split_function): Skip the return value for the split
        part if it doesn't return.

2012-01-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR tree-optimization/49642
        * ipa-split.c (forbidden_dominators): New variable.
        (check_forbidden_calls): New function.
        (dominated_by_forbidden): Likewise.
        (consider_split): Check for forbidden dominators.
        (execute_split_functions): Initialize and free forbidden
        dominators info; call check_forbidden_calls.

2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/arm.md (mov_notscc): Use MVN for false condition.

2012-01-11  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (return): Define pattern.

2012-01-11  Richard Guenther  <rguenther@suse.de>

        * doc/extend.texi (malloc attribute): Adjust according to
        implementation.

2012-01-10  Aldy Hernandez  <aldyh@redhat.com>
            Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/51516
        * trans-mem.c (get_cg_data): Traverse aliases if requested.
        (ipa_tm_scan_calls_block): Update parameters to get_cg_data.
        (ipa_tm_note_irrevocable): Same.
        (ipa_tm_scan_irr_block): Same.
        (ipa_tm_decrement_clone_counts): Same.
        (ipa_tm_scan_irr_function): Same.
        (ipa_tm_create_version_alias): Same.
        (ipa_tm_create_version): Same.
        (ipa_tm_transform_calls_redirect): Same.
        (ipa_tm_transform_calls): Same.
        (ipa_tm_transform_transaction): Same.
        (ipa_tm_execute): Same.

2012-01-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51806
        * opts.c (common_handle_option): Handle -Werror.

2012-01-10  Andreas Schwab  <schwab@linux-m68k.org>

        * config/m68k/sync.md ("atomic_compare_and_swap<mode>_1"): Fix
        operand number.

2012-01-10  Jason Merrill  <jason@redhat.com>

        * doc/invoke.texi (C++ Dialect Options): Update -fabi-version=6
        information.

2012-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_ix86_tlsgdplt): Check if linker
        supports R_386_TLS_GD_PLT reloc.
        (gcc_cv_as_ix86_tlsldmplt): Check if linker
        supports R_386_TLS_LDM_PLT reloc.
        * configure: Regenerate.
        * config.in: Regenerate.

2012-01-10  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        Extend __pgmx semantics to linearize memory.
        * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to
        determine if code comes inline or from libgcc.
        (MOVMEM_r_d:HI): Add "w" to constraint for better preference.
        (movmem_qi, movmem_qi): Set constraint #2 to "n".
        (movmem_qi_elpm, movmem_hi_elpm): Remove insns.
        (movmemx_qi, movmemx_hi): New insns.
        (xload_<mode>_libgcc): Rewrite to new insn condition.
        (xload_<mode>): Remove insns.
        * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle
        cases that don't satisfy avr_xload_libgcc_p().
        (avr_addr_space_convert): Allow converting in any direction.
        (avr_addr_space_subset_p): Return always true.
        (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics.
        (avr_emit_movmemhi): Ditto.
        (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more.
        (avr_out_movmem): Ditto.
        (AVR_SYMBOL_FLAG_PROGMEM): New macro.
        (AVR_SYMBOL_SET_ADDR_SPACE): New macro.
        (AVR_SYMBOL_GET_ADDR_SPACE): New macro.
        (avr_encode_section_info): Encode 'progmem' in symbol flags.
        (output_reload_in_const): Don't zero-extend any 24-bit symbols.

2012-01-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50913
        * graphite-scop-detection.c (stmt_has_simple_data_refs_p):
        Require data-refs to be representable by Graphite with respect
        to any loop nest.

2012-01-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/constraints.md ("L"): Return true for 0xffffffff.
        * config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.

2012-01-10  Tom de Vries  <tom@codesourcery.com>

        PR rtl-optimization/51271
        * dwarf2cfi.c (scan_trace): Save and restore cur_row->reg_save when
        handling annulled branch.

2012-01-10  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
        TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
        struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
        arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
        arm_evpc_neon_vtrn, arm_evpc_neon_vtbl, arm_expand_vec_perm_const_1,
        arm_expand_vec_perm_const): New.
        * config/arm/arm-protos.h: Update.
        * config/arm/neon.md (UNSPEC_VCONCAT): New.
        (*neon_vswp<VDQX>): New.
        (neon_vcombine<VDX>): Use neon_split_vcombine.
        (neon_vtbl1v16qi, neon_vtbl2v16qi, neon_vcombinev16qi): New.
        * config/arm/vec-common.md (vec_perm_const<VALL>): New.
        (vec_perm<VE>): New.

2012-01-10  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.c (arm_gen_compare_reg): Add scratch argument;
        use it if reload_completed.
        (arm_legitimize_sync_memory, arm_emit, arm_insn_count, arm_count,
        arm_output_asm_insn, arm_process_output_memory_barrier,
        arm_output_memory_barrier, arm_ldrex_suffix, arm_output_ldrex,
        arm_output_strex, arm_output_it, arm_output_op2, arm_output_op3,
        arm_output_sync_loop, arm_get_sync_operand, FETCH_SYNC_OPERAND,
        arm_process_output_sync_insn, arm_output_sync_insn,
        arm_sync_loop_insns, arm_call_generator, arm_expand_sync): Remove.
        (arm_pre_atomic_barrier, arm_post_atomic_barrier): New.
        (arm_emit_load_exclusive, arm_emit_store_exclusive): New.
        (emit_unlikely_jump): New.
        (arm_expand_compare_and_swap, arm_split_compare_and_swap): New.
        (arm_split_atomic_op): New.
        * config/arm/arm-protos.h: Update.
        * config/arm/arm.h (enum arm_sync_generator_tag): Remove.
        (struct arm_sync_generator): Remove.
        * config/arm/arm.md (VUNSPEC_SYNC_COMPARE_AND_SWAP, VUNSPEC_SYNC_LOCK,
        VUNSPEC_SYNC_OP, VUNSPEC_SYNC_NEW_OP, VUNSPEC_SYNC_OLD_OP): Remove.
        (VUNSPEC_ATOMIC_CAS, VUNSPEC_ATOMIC_XCHG, VUNSPEC_ATOMIC_OP): New.
        (VUNSPEC_LL, VUNSPEC_SC): New.
        (sync_result, sync_memory, sync_required_value, sync_new_value,
        sync_t1, sync_t2, sync_release_barrier, sync_op): Remove.
        (attr length): Don't use arm_sync_loop_insns.
        (cbranch_cc, cstore_cc): Update call to arm_gen_compare_reg.
        (movsfcc, movdfcc): Likewise.
        * config/arm/constraints.md (Ua): New.
        * config/arm/prediates.md (mem_noofs_operand): New.
        (sync_compare_and_swap<QHSD>, sync_lock_test_and_set<QHSD>): Remove.
        (sync_clobber, sync_t2_reqd): Remove.
        (sync_<syncop><QHSD>, sync_nand<QHSD>): Remove.
        (sync_new_<syncop><QHSD>, sync_new_nand<QHSD>): Remove.
        (sync_old_<syncop><QHSD>, sync_old_nand<QHSD>): Remove.
        (arm_sync_compare_and_swap<SIDI>): Remove.
        (arm_sync_compare_and_swap<NARROW>): Remove.
        (arm_sync_lock_test_and_set<SIDI>): Remove.
        (arm_sync_lock_test_and_set<NARROW>): Remove.
        (arm_sync_new_<syncop><SIDI>): Remove.
        (arm_sync_new_<syncop><NARROW>): Remove.
        (arm_sync_new_nand<SIDI>): Remove.
        (arm_sync_new_nand<NARROW>): Remove.
        (arm_sync_old_<syncop><SIDI>): Remove.
        (arm_sync_old_<syncop><NARROW>): Remove.
        (arm_sync_old_nand<SIDI>): Remove.
        (arm_sync_old_nand<NARROW>): Remove.
        (*memory_barrier): Merge arm_output_memory_barrier.
        (atomic_compare_and_swap<QHSD>): New.
        (atomic_compare_and_swap<NARROW>_1): New.
        (atomic_compare_and_swap<SIDI>_1): New.
        (atomic_exchange<QHSD>): New.
        (cas_cmp_operand, cas_cmp_str): New.
        (atomic_op_operand, atomic_op_str): New.
        (atomic_<syncop><QHSD>, atomic_nand<QHSD>): New.
        (atomic_fetch_<syncop><QHSD>, atomic_fetch_nand<QHSD>): New.
        (atomic_<syncop>_fetch<QHSD>, atomic_nand_fetch<QHSD>): New.
        (arm_load_exclusive<NARROW>): New.
        (arm_load_exclusivesi, arm_load_exclusivedi): New.
        (arm_store_exclusive<QHSD>): New.

2012-01-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Add DF
        reload patterns if -mvsx-scalar-memory.

        * config/rs6000/vsx.md (vsx_xscvspdp): Allow xscvspdp to be
        generated, even -mno-vsx-scalar-double was used.
        (vsx_xscvdpsp_scalar): Likewise.
        (vsx_xscvspdp_scalar2): Likewise.

2012-01-09  Tom de Vries  <tom@codesourcery.com>
            Andrew Pinski  <apinski@cavium.com>

        PR debug/51471
        * reorg.c (fill_slots_from_thread): Don't speculate
        frame-related insns.

2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>

        * sched-int.h (bb_note): Move to...
        * basic-block.h: ...here.
        * haifa-sched.c (bb_note): Move to...
        * cfgrtl.c: ...here.
        * function.c (next_block_for_reg): New function.
        (move_insn_for_shrink_wrap): Likewise.
        (prepare_shrink_wrap): Rewrite to use the above.

2012-01-09  Aldy Hernandez  <aldyh@redhat.com>

        * gimple.c (is_gimple_non_addressable): Remove.
        * gimple.h: Remove is_gimple_non_addressable.
        * gimplify.c (gimplify_modify_expr_rhs): Use is_gimple_reg instead of
        is_gimple_non_addressable.
        * trans-mem.c (expand_assign_tm): Same.

2012-01-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51775
        * tree-ssa-sccvn.c (visit_use): Value-number throwing stmts.
        * tree-ssa-pre.c (eliminate): Properly fixup EH info.

2012-01-09  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for
        tuning parameters.
        * config/arm/arm.c (arm_cortex_a15_tune): New static variable.

2012-01-09  Richard Guenther  <rguenther@suse.de>

        * tree-streamer-out.c (write_ts_optimization): Fix spelling.

2012-01-08  Jan Hubicka  <jh@suse.cz>

        PR tree-optimize/51680
        * ipa-inline-analyss.c (evaluate_properties_for_edge): Fix condition
        on when known_vals needs to be computed; cleanup.

2012-01-08  Jan Hubicka  <jh@suse.cz>

        PR tree-optimize/51694
        * ipa-cp.c (ipa_get_indirect_edge_target): Add bounds checks.

2012-01-08  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/cpp.texi (Predefined Macros): __STRICT_ANSI__ is defined
        for -std=c++98 and -std=c++11 too.

2012-01-08  Chung-Lin Tang  <cltang@codesourcery.com>

        * cfgloop.c (cancel_loop): Add free() of bbs array.

2012-01-07  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/51600
        * ipa-inline-analysis.c (estimate_edge_devirt_benefit): Disable code
        that benefits small functions.

2012-01-07  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (want_inline_small_function_p): Fix formating.

2012-01-07  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/51680
        * ipa-inline.c (want_inline_small_function_p): Be more lax on functions
        whose inlining reduce unit size.

2012-01-07  Alexandre Oliva  <aoliva@redhat.com>

        PR bootstrap/51725
        * cselib.c (new_elt_loc_list): Promote addr_list to canonical node.
        Add canonical node to containing_mem chain after the non-canonical
        one, even if there weren't any locs to propagate.
        (remove_useless_values): Keep only canonical values.
        (add_mem_for_addr, cselib_lookup_mem): Canonicalize addr.
        (cselib_invalidate_mem): Likewise.  Ensure v is canonical, and
        canonicalize mem_chain elements that are not discarded.

2012-01-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/47333
        * cgraphunit.c (cgraph_optimize): Call output_weakrefs
        before emitting functions.

        PR gcov-profile/50127
        * bb-reorder.c (partition_hot_cold_basic_blocks): Call
        clear_aux_for_blocks.

2012-01-06  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/51746
        * cselib.c (cselib_hash_rtx): Hash incoming VALUEs too.

2012-01-06  Arnaud Charlet  <charlet@adacore.com>

        * c-decl.c (ext_block): Moved up.
        (collect_all_refs, for_each_global_decl): Take ext_block into account.

2012-01-06  Han Shen  <shenhan@google.com>

        Translate built-in include paths for sysroot.
        * Makefile.in (gcc_gxx_include_dir_add_sysroot): New.
        (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT.

        * cppdefault.c (cpp_include_defaults): Replace hard coded "0" with
        GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field.

        * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to
        control whether sysroot should be prepended to gxx include dir.

        * configure: Regenerate.

2012-01-06  Torvald Riegel  <triegel@redhat.com>

        PR rtl-optimization/51771
        * builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
        * gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.

2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/51315
        * tree-sra.c (tree_non_aligned_mem_for_access_p): New predicate.
        (build_accesses_from_assign): Use it instead of tree_non_aligned_mem_p.

2012-01-05  Uros Bizjak  <ubizjak@gmail.com>

        PR target/51681
        * config/ia64/ia64.c (expand_vec_perm_shrp): Use correct operands
        for shrp pattern.  Correctly handle and fixup shift variable.
        Return false when shift > nelt for BYTES_BIG_ENDIAN target.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51762
        * calls.c (emit_call_1): For noreturn calls force a REG_ARGS_SIZE
        note when !ACCUMULATE_OUTGOING_ARGS.

2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_binary_expr_1): Remove duplicated
        condition.
        (extract_range_from_unary_expr_1): Avoid useless computations.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51767
        * cfgrtl.c (force_nonfallthru_and_redirect): Force addition
        of jump_block and add an extra edge for degenerated asm gotos.

        PR middle-end/51768
        * stmt.c (check_unique_operand_names): Don't ICE during error
        reporting if i is from labels chain.

        PR middle-end/44777
        * profile.c (branch_prob): Split bbs that have exit edge
        and need a fake entry edge too.

2012-01-05  Jan Hubicka  <jh@suse.cz>

        PR middle-end/49710
        * cfgloopmanip.c (remove_path): Walk loop hiearchy upwards when
        unlooping loops.

2012-01-05  Richard Guenther  <rguenther@suse.de>

        PR lto/50490
        * tree-streamer-out.c (write_ts_optimization): New function.
        (streamer_write_tree_body): Call it.
        * tree-streamer-in.c (lto_input_ts_optimization): New function.
        (streamer_read_tree_body): Call it.
        * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51761
        * gimple.h (struct gimplify_ctx): Add in_cleanup_point_expr field.
        * gimplify.c (gimplify_cleanup_point_expr): Save and set
        in_cleanup_point_expr before gimplify_stmt call and restore it
        afterwards.
        (gimplify_target_expr): Don't add {CLOBBER} cleanup if
        in_cleanup_point_expr is false.

2012-01-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51764
        * common.opt (Wmudflap, fmudflap, fmudflapth, fmudflapir): Move
        to c.opt.
        * toplev.c (process_options): Reject combining mudflap and LTO.
        * tree-nomudflap.c (nogo): Use sorry instead of internal_error.

2012-01-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51760
        * tree-ssa-ccp.c (likely_value): Drop UNDEFINED to CONSTANT,
        not VARYING.
        (bit_value_unop): Handle UNDEFINED operands.
        (bit_value_binop): Likewise.

2012-01-05  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_replace_prefix): Remove.
        (avr_asm_named_section): Use ACONCAT instead of avr_replace_prefix.
        (avr_asm_function_rodata_section): Ditto.
        (avr_asm_select_section): Ditto.

2012-01-05  Marcus Shawcroft  <marcus.shawcroft@arm.com>

        * reload.c (find_reloads): Adjust LABEL_NUSES on REG_LABEL_OPERAND
        insertion.

2012-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51648
        * tree-cfg.c (need_fake_edge_p): Return true also for noreturn
        calls that have any non-fake successor edges.

        PR debug/51746
        * var-tracking.c (add_stores): For COND_EXEC allow oval to be NULL.

2012-01-04  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/51624
        * tree-sra.c (build_ref_for_model): When replicating a chain of
        COMPONENT_REFs, stop as soon as the offset would become negative.

2012-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51695
        * dwarf2out.c (output_loc_list): For now drop >= 64KB expressions
        in .debug_loc on the floor.

2012-01-04  Andrew Pinski  <apinski@cavium.com>

        * doc/invoke.texi (-march=@var{arch}): Add octeon+ and octeon2.

2012-01-04  Andrew Pinski  <apinski@cavium.com>
            Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (size): Add SI and DI.
        (SIZE): New mode attribute.
        (U): New code attribute.
        * config/mips/mips-dsp.md (mips_lbux): Use gen_mips_lbux_extsi.
        (mips_lbux_<mode>): Delete.
        (mips_l<SHORT:size><u>x_ext<GPR:mode>_<P:mode>): New pattern.
        (mips_lhx): Use gen_mips_lhx_extsi.
        (mips_lhx_<mode>): Delete.
        (mips_lwx): Delete.
        (mips_l<size>x): New expand.
        (mips_lwx_<mode>): Delete.
        (mips_l<GPR:size>x_<P:mode>): New pattern.
        (*mips_lw<u>x_<P:mode>_ext): Likewise.
        * config/mips/mips-ftypes.def: Add DI f(POINTER, SI) function type.
        * config/mips/mips.c (mips_lx_address_p): New function.
        (mips_rtx_costs <case MEM>): Call mips_lx_address_p.
        (dsp64): New availability predicate.
        (mips_builtins): Add an entry for __builtin_mips_ldx.
        * config/mips/mips.h (ISA_HAS_LBX): New define.
        (ISA_HAS_LBUX): Likewise.
        (ISA_HAS_LHX): Likewise.
        (ISA_HAS_LHUX): Likewise.
        (ISA_HAS_LWX): Likewise.
        (ISA_HAS_LWUX): Likewise.
        (ISA_HAS_LDX): Likewise.
        * doc/extend.texi (__builtin_mips_ldx): Document.

2012-01-04  Tristan Gingold  <gingold@adacore.com>

        * config/vms/xm-vms.h (HOST_LONG_FORMAT, HOST_PTR_PRINTF): Define
        when long pointers are used.
        * config.build (*-*-*vms*): Handle all OpenVMS targets.
        (alpha64-dec-*vms*, alpha*-dec-*vms*)
        (ia64-hp-*vms*): Remove.
        * config/vms/xm-vms64.h: Delete.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51472
        * trans-mem.c (expand_assign_tm): Handle TM_MEMMOVE loads correctly.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

        * opts.c (finish_options): Remove duplicate sorry.

2012-01-04  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51696
        * trans-mem.c (diagnose_tm_1): Display indirect calls with no name
        correctly.

2012-01-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51750
        * tree.c (size_low_cst): New function.
        * tree.h (size_low_cst): Declare.
        * fold-const.c (fold_comparison): Use it to extract the low
        part of the POINTER_PLUS_EXPR offset.

2012-01-04  Georg-Johann Lay  <avr@gjlay.de>

        Fix clearing ZERO_REG
        * config/avr/avr.md (cc): Add alternative "ldi".
        (movqi_insn): Use it in cc attribute.
        * config/avr/avr.c (notice_update_cc): Handle CC_LDI.
        (output_reload_in_const): Use CLR to move 0 to ZERO_REG.
        (output_reload_insisf): Use ZERO_REG to pre-clear register.

2012-01-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * configure: Regenerate.

2012-01-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/49651
        * tree-ssa-structalias.c (type_can_have_subvars): New function.
        (var_can_have_subvars): Use it.
        (get_constraint_for_1): Only consider subfields if there can be any.

2012-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51725
        * cselib.c (new_elt_loc_list): When moving locs from one cselib_val
        to its new canonical_cselib_val and the cselib_val was in
        first_containing_mem chain, but the canonical_cselib_val was not,
        add the latter into the chain.
        (cselib_invalidate_mem): Compare canonical_cselib_val of
        addr_list chain elt with v.

        PR pch/51722
        * dwarf2out.c (dwarf2out_start_source_file, dwarf2out_define,
        dwarf2out_undef): Allocate e.info using ggc_strdup instead
        of xstrdup.
        (output_macinfo_op): Don't ggc_strdup fd->filename.
        (optimize_macinfo_range): Allocate grp_name using XALLOCAVEC,
        then ggc_strdup it.  Don't free inc->info or cur->info.
        (output_macinfo): Don't free ref->info or file->info.

2012-01-03  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51269
        * tree-vect-loop-manip.c (set_prologue_iterations): Make
        first_niters a pointer.
        (slpeel_tree_peel_loop_to_edge): Likewise.
        (vect_do_peeling_for_loop_bound): Update call to
        slpeel_tree_peel_loop_to_edge.
        (vect_gen_niters_for_prolog_loop): Don't compute wide_prolog_niters
        here.  Remove it from the parameters list.
        (vect_do_peeling_for_alignment): Update calls and compute
        wide_prolog_niters.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51070
        * tree-loop-distribution.c (stmt_has_scalar_dependences_outside_loop):
        Properly handle calls.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51692
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not remove
        the LHS of allocation stmts.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

        * system.h: Prior to #define, #undef fopen and freopen unconditionally.

2012-01-03  Olivier Hainque  <hainque@adacore.com>

        * collect2.c (main): In AIX specific computations for vector
        insertions, use CONST_CAST2 to cast from char ** to const char **.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR debug/51650
        * dwarf2out.c (dwarf2out_finish): Always create a DIE for
        the context of a limbo DIE when it does not already exist.

2012-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51719
        * value-prof.c (gimple_ic): When indirect call isn't noreturn,
        but direct call is, clear direct call's lhs and don't add fallthrough
        edge from dcall_bb to join_bb and PHIs.

2012-01-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("*cmp<mode>_ccs"): Fix comment mentioning
        the instructions emitted by the pattern.
        ("*TDC_insn_<mode>"): Add comment.

2012-01-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51730
        * fold-const.c (fold_comparison): Properly canonicalize
        tree offset and HOST_WIDE_INT bit position.

2012-01-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/ia64/ia64.c (expand_vec_perm_broadcast): Use correct
        operands for extzv pattern.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/51725
        * cselib.c (add_mem_for_addr): Call canonical_cselib_val
        on mem_elt first.

2012-01-02  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/invoke.texi (-flto and related options): Copy-edit.

2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.md (loadgp_newabi_<mode>): Add missing earlyclobber.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*avx2_gatherdi<mode>_3, *avx2_gatherdi<mode>_4):
        New patterns.

2012-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * expr.h (move_by_pieces_ninsns): Declare.
        * expr.c (move_by_pieces_ninsns): Make external.
        * config/mips/mips-protos.h (mips_move_by_pieces_p): Declare.
        (mips_store_by_pieces_p): Likewise.
        * config/mips/mips.h (MOVE_BY_PIECES_P): Call mips_move_by_pieces_p.
        (STORE_BY_PIECES_P): Likewise mips_store_by_pieces_p.
        * config/mips/mips.c (mips_move_by_pieces_p): New function.
        (mips_store_by_pieces_p): Likewise.

2012-01-02  Jakub Jelinek  <jakub@redhat.com>

        * passes.c (register_one_dump_file): Free full_name.

        * reload1.c (reload): Don't allocate reg_max_ref_width here.
        (calculate_elim_costs_all_insns): Free offsets_at and
        offsets_known_at at the end and clear the pointers.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.opt (-mbranch-cost): Fix double definition of
        this option introduced in r180739.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51345
        * config.gcc (tm_file target=avr]): Add avr/avr-multilib.h
        (tmake_file target=avr): Add avr/t-multilib.

        * config/avr/avr-c.c (avr_cpu_cpp_builtins): Use AVR_HAVE_8BIT_SP
        to built-in define __AVR_HAVE_8BIT_SP__, __AVR_HAVE_16BIT_SP__.
        * config/avr/genmultilib.awk: New file.
        * config/avr/t-multilib: New auto-generated file.
        * config/avr/multilib.h: New auto-generated file.
        * config/avr/t-avr (AVR_MCUS): New variable.
        (genopt.sh): Use it.
        (s-mlib): Depend on t-multilib.
        (t-multilib, multilib.h): New dependencies.
        (s-avr-mlib): New rule to build t-multilib, multilib.h from AVR_MCUS.
        (MULTILIB_OPTIONS): Remove.
        (MULTILIB_MATCHES): Remove.
        (MULTILIB_DIRNAMES): Remove.
        (MULTILIB_EXCEPTIONS): Remove:
        * config/avr/genopt.sh: Don't use hard coded file name;
        pass AVR_MCUS from t-avr instead.

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_out_ashrpsi3): Fix "case 31" to "case 23".

2012-01-02  Georg-Johann Lay  <avr@gjlay.de>

        Implement light-weight DImode support.
        * config/avr/avr-dimode.md: New file.
        * config/avr/avr.md: Include it.
        (adjust_len): Add plus64, compare64.
        (HIDI): Remove code iterator.
        (code_stdname): New code attribute.
        (rotx, rotsmode): Remove DI.
        (rotl<mode>3, *rotw<mode>, *rotb<mode>): Use HISI instead of HIDI
        as code iterator.
        * config/avr/avr-protos.h (avr_have_dimode): New.
        (avr_out_plus64, avr_out_compare64): New.
        * config/avr/avr.c (avr_out_compare): Handle DImode.
        (avr_have_dimode): New variable definition and initialization.
        (avr_out_compare64, avr_out_plus64): New functions.
        (avr_out_plus_1): Use simplify_unary_operation to negate xval.
        (adjust_insn_length): Handle ADJUST_LEN_COMPARE64, ADJUST_LEN_PLUS64.
        (avr_compare_pattern): Skip DImode comparisons.

2012-01-02  Revital Eres  <revital.eres@linaro.org>

        * ddg.c (def_has_ccmode_p): New function.
        (add_cross_iteration_register_deps,
        create_ddg_dep_from_intra_loop_link): Call it.

2012-01-02  Richard Guenther  <rguenther@suse.de>

        PR other/51679
        * invoke.texi (fassociative-math): Remove spurious paranthesis.

2012-01-01  Jakub Jelinek  <jakub@redhat.com>

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

2012-01-01  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51704
        * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that
        a use is inside the basic block or loop before accessing its vect info.

2012-01-01  Jan Hubicka  <jhjh@suse.cz>

        PR rtl-optimization/51069
        * cfgloopmanip.c (remove_path): Removing path making irreducible
        region unconditional makes BB part of the region.

2012-01-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51683
        * tree-ssa-propagate.c (substitute_and_fold): Don't optimize away
        calls with side-effects.
        * tree-ssa-ccp.c (ccp_fold_stmt): Likewise.
\f
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