[gcc.git] / gcc / ChangeLog

2019-02-28  Marek Polacek  <polacek@redhat.com>

        PR c++/87068 - missing diagnostic with fallthrough statement.
        * gimplify.c (expand_FALLTHROUGH_r): If IFN_FALLTHROUGH was found
        at the end of a seq, save its location to walk_stmt_info.
        (expand_FALLTHROUGH): Warn if IFN_FALLTHROUGH is at the end of
        a switch.

2019-02-28  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/88585
        * tree.c (find_atomic_core_type): Move ahead in file.
        (check_base_type): Correctly compare alignments of atomic types.

2019-02-28  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89455
        * config/i386/i386.c (get_builtin_code_for_version): Identify
        Westmere from PCLMUL, instead of AES.

2019-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/89434
        * config/arm/arm.md (*subsi3_carryin_compare_const): Use
        trunc_int_for_mode (-INTVAL (...), SImode), just instead of
        -UINTVAL (...).

2019-02-28  Tamar Christina  <tamar.christina@arm.com>

        PR target/88530
        * config/aarch64/aarch64-option-extensions.def: Document it.
        * config/aarch64/driver-aarch64.c (host_detect_local_cpu): Skip feature
        if empty hwcaps.

2019-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR c/89520
        * convert.c (convert_to_real_1, convert_to_integer_1): Punt for
        builtins if they don't have a single scalar floating point argument.
        Formatting fixes.

2019-02-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/89490
        * varasm.c (get_block_for_section): Bail out for mergeable sections.
        (default_use_anchors_for_symbol_p, output_object_block): Assert the
        block section is not mergeable.

2019-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/70341
        * config/arm/arm.md (arm_casesi_internal): New define_expand.  Rename
        old define_insn to ...
        (*arm_casesi_internal): ... this.  Add mode to LABEL_REFs.
        * config/arm/thumb2.md (thumb2_casesi_internal): New define_expand.
        Rename old define_insn to ...
        (*thumb2_casesi_internal): ... this.  Add mode to LABEL_REFs.
        (thumb2_casesi_internal_pic): New define_expand.  Rename old
        define_insn to ...
        (*thumb2_casesi_internal_pic): ... this.  Add mode to LABEL_REFs.
        * config/aarch64/aarch64.md (casesi): Create the casesi_dispatch
        MEM manually here, set MEM_READONLY_P and MEM_NOTRAP_P on it.

2019-02-27  Richard Biener  <rguenther@suse.de>

        PR debug/88878
        * dwarf2out.c (use_debug_types): Disable when in_lto_p.

2019-02-27  Richard Biener  <rguenther@suse.de>

        * passes.c (should_skip_pass_p): Do not skip cgraph-edge
        building.

2019-02-27  Richard Biener  <rguenther@suse.de>

        PR debug/88878
        * dwarf2out.c (output_comdat_type_unit): Add early_lto_debug
        parameter, prefix section name with .gnu.debuglto_ if true.
        (dwarf2out_finish): Pass false to output_comdat_type_unit.
        (dwarf2out_early_finish): Pass true to output_comdat_type_unit.

2019-02-27  Richard Biener  <rguenther@suse.de>

        PR debug/89514
        * dwarf2out.c (size_of_die): Key on AT_ref (a)->comdat_type_p
        rather than on use_debug_types, doing what output_die does.
        (value_format): Likewise.

2019-02-27  Martin Jambor  <mjambor@suse.cz>
            Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (Warning Options): Reword description of
        -Wno-absolute-value.

2019-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89280
        * tree-cfgcleanup.c (maybe_dead_abnormal_edge_p,
        builtin_setjmp_setup_bb): New functions.
        (cleanup_control_flow_pre): Ignore maybe_dead_abnormal_edge_p edges.
        When visiting __builtin_setjmp_setup block, queue in special
        setjmp_vec vector edges from .ABNORMAL_DISPATCHER to corresponding
        __builtin_setjmp_receiver.  Remove .ABNORMAL_DISPATCHER basic blocks
        from visited after the loop if they don't have any visited successor
        blocks.

2018-02-26  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_get_multilib_abi_name):
        New function.
        (TARGET_GET_MULTILIB_ABI_NAME): New macro.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89507
        * tree.c (valid_constant_size_p): Deal with size INTEGER_CSTs
        with types other than sizetype/ssizetype.

2019-02-26  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc-opts.h (enum processor_type): Rename to...
        (enum sparc_processor_type): ...this.
        (enum sparc_code_model_type): New enumeration type.
        (enum sparc_memory_model_type): Tweak comments.
        * config/sparc/sparc.opt (mcpu): Adjust to above renaming.
        (mtune): Likewise.
        (mcmodel): Use sparc_code_model enumeration and variable.
        (sparc_code_model): New enumeration.
        (mdebug): Add Undocumented marker.
        * config/sparc/sparc.h (enum cmodel): Delete.
        (sparc_cmodel): Likewise.
        (TARGET_CM_MEDLOW): Adjust to above renaming.
        (TARGET_CM_MEDMID): Likewise.
        (TARGET_CM_MEDANY): Likewise.
        (TARGET_CM_EMBMEDANY): Likewise.
        * config/sparc/sparc.c (sparc_cmodel): Delete.
        (sparc_option_override): Remove string/value mapping support for the
        code model.  Move code and memory model support to after the handling
        of target flags.  Do private machine setup last.
        (sparc_emit_set_symbolic_const64): Use sparc_code_model.
        (sparc_legitimize_reload_address): Likewise.
        (sparc_output_mi_thunk): Likewise.
        * config/sparc/sparc.md (cpu): Adjust comment to above renaming.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89500
        * tree-ssa-strlen.c (stridx_strlenloc): Adjust comment.
        (handle_builtin_strlen): Remove noncst_bound variable.  Always
        optimize strnlen (x, 0) to 0.  Optimize strnlen (x, cst) to
        cst if the first cst bytes starting at x are known to be non-zero,
        even if the string is not zero terminated.  Don't try to modify
        *si for strnlen.  Update strlen_to_stridx only for strlen or if
        we can prove strnlen returns the same value as strlen would.

2019-02-26  Martin Liska  <mliska@suse.cz>

        * alloc-pool.h (struct pool_usage): Remove extra
        print_dash_line.
        * bitmap.h (struct bitmap_usage): Likewise.
        * ggc-common.c (struct ggc_usage): Likewise.
        * mem-stats.h (struct mem_usage): Likewise.
        (mem_alloc_description::dump): Print dash lines
        here and repeat header at the end of a table report.
        It's then more readable.
        * tree-phinodes.c (phinodes_print_statistics): Make
        horizontal alignment.
        * tree-ssanames.c (ssanames_print_statistics): Likewise.
        * vec.c (struct vec_usage): Remove extra print_dash_line.
        * vec.h (vec_safe_grow_cleared): Pass PASS_MEM_STAT.

2019-02-26  Uroš Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (__builtin_object_size):
        Use @pxref instead of @xref inside parenthesis.
        (__builtin_has_attribute): Add missing comma after @xref.
        (__builtin_object_size): Ditto.
        * doc/md.texi (cond_*{mode}): Use @samp instead of @var around op1[i].
        * fortran/invoke.texi (-ffpe-trap): Use @var for every item
        in the list.

2019-02-26  Jeff Law  <law@redhat.com>

        PR rtl-optimization/87761
        * regcprop.c (copyprop_hardreg_forward_1): Use REG_UNUSED notes to
        detect obviously dead insns and delete them.

2019-02-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89505
        * tree-ssa-structalias.c (compute_dependence_clique): Make sure
        to handle restrict pointed-to vars with multiple subvars
        correctly.

2019-02-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89489
        * tree-parloops.c (create_loop_fn): Copy over last_clique.

2019-02-26  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-dom.c (edge_info::derive_equivalences) <BIT_IOR_EXPR>: Fix
        and move around comment.
        <BIT_AND_EXPR>: Likewise.
        <BIT_NOT_EXPR>: Add specific handling for boolean types.

2019-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR target/89474
        * config/i386/i386.c (remove_partial_avx_dependency): Call
        df_analyze etc. before creation of the v4sf_const0 pseudo, rather than
        after changing possibly many instructions to use that pseudo.  Fix up
        insertion of v4sf_const0 setter at the start of bb.

2019-02-25  Sandra Loosemore  <sandra@codesourcery.com>

        PR c/80409
        * doc/extend.texi (Variadic Pointer Args): New section.

2019-02-25  Sandra Loosemore  <sandra@codesourcery.com>
            Martin Sebor  <msebor@gmail.com>

        * common.opt (Wattribute-alias): Likewise.
        * doc/invoke.texi (Option Summary): List general form of
        -Wattribute-alias=.  List positive form of -Wmissing-attributes.
        (-Wmissing-attributes): Invert entry, rewrite and correct default.
        Add cross-references.
        (-Wattribute-alias): Rewrite and correct default.  Mention
        considered attributes (same as for -Wmissing-attributes).

2019-02-25  Paul A. Clarke  <pc@us.ibm.com>

        * config/rs6000/emmintrin.h (_mm_cvtpd_epi32): Fix big endian.
        (_mm_cvtpd_ps): Likewise.
        (_mm_cvttpd_epi32): Likewise.

        PR target/89338
        * config/rs6000/xmmintrin.h (_mm_cvtss_f32):  Fix type mismatch.
        (_mm_cvt_ss2si): Fix type mismatch and 32-bit.

        PR target/89339
        * config/rs6000/xmmintrin.h (_mm_movemask_pi8): Fix 32-bit.

2019-02-25  Tamar Christina  <tamar.christina@arm.com>

        PR target/88530
        * common/config/aarch64/aarch64-common.c
        (struct aarch64_option_extension): Add is_synthetic.
        (all_extensions): Use it.
        (TARGET_OPTION_INIT_STRUCT): Define hook.
        (struct gcc_targetm_common): Moved to end.
        (all_extensions_by_on): New.
        (opt_ext_cmp, typedef opt_ext): New.
        (aarch64_option_init_struct): New.
        (aarch64_contains_opt): New.
        (aarch64_get_extension_string_for_isa_flags): Output smallest set.
        * config/aarch64/aarch64-option-extensions.def
        (AARCH64_OPT_EXTENSION): Explicitly include AES and SHA2 in crypto.
        (fp, simd, crc, lse, fp16, rcpc, rdma, dotprod, aes, sha2, sha3,
        sm4, fp16fml, sve, profile, rng, memtag, sb, ssbs, predres):
        Set is_synthetic to false.
        (crypto): Set is_synthetic to true.
        * config/aarch64/driver-aarch64.c (AARCH64_OPT_EXTENSION): Add
        SYNTHETIC.

2019-02-25  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
        vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32, vfmlslq_low_u32,
        vfmlalq_high_u32, vfmlslq_high_u32, vfmlal_lane_low_u32,
        vfmlal_lane_high_u32, vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32,
        vfmlal_laneq_low_u32, vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32,
        vfmlal_laneq_high_u32, vfmlsl_lane_low_u32, vfmlsl_lane_high_u32,
        vfmlslq_laneq_low_u32, vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32,
        vfmlslq_laneq_high_u32, vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32):
        Rename ...
        (vfmlal_low_f16, vfmlsl_low_f16, vfmlal_high_f16, vfmlsl_high_f16,
        vfmlalq_low_f16, vfmlslq_low_f16, vfmlalq_high_f16, vfmlslq_high_f16,
        vfmlal_lane_low_f16, vfmlal_lane_high_f16, vfmlalq_laneq_low_f16,
        vfmlalq_lane_low_f16, vfmlal_laneq_low_f16, vfmlalq_laneq_high_f16,
        vfmlalq_lane_high_f16, vfmlal_laneq_high_f16, vfmlsl_lane_low_f16,
        vfmlsl_lane_high_f16, vfmlslq_laneq_low_f16, vfmlslq_lane_low_f16,
        vfmlsl_laneq_low_f16, vfmlslq_laneq_high_f16, vfmlslq_lane_high_f16,
        vfmlsl_laneq_high_f16): ... To this.
        * config/arm/neon.md: Update comments.

2019-02-25  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
        vfmlalq_low_u32, vfmlslq_low_u32, vfmlal_high_u32, vfmlsl_high_u32,
        vfmlalq_high_u32, vfmlslq_high_u32, vfmlal_lane_low_u32,
        vfmlsl_lane_low_u32, vfmlal_laneq_low_u32, vfmlsl_laneq_low_u32,
        vfmlalq_lane_low_u32, vfmlslq_lane_low_u32, vfmlalq_laneq_low_u32,
        vfmlslq_laneq_low_u32, vfmlal_lane_high_u32, vfmlsl_lane_high_u32,
        vfmlal_laneq_high_u32, vfmlsl_laneq_high_u32, vfmlalq_lane_high_u32,
        vfmlslq_lane_high_u32, vfmlalq_laneq_high_u32, vfmlslq_laneq_high_u32):
        Rename ...
        (vfmlal_low_f16, vfmlsl_low_f16, vfmlalq_low_f16, vfmlslq_low_f16,
        vfmlal_high_f16, vfmlsl_high_f16, vfmlalq_high_f16, vfmlslq_high_f16,
        vfmlal_lane_low_f16, vfmlsl_lane_low_f16, vfmlal_laneq_low_f16,
        vfmlsl_laneq_low_f16, vfmlalq_lane_low_f16, vfmlslq_lane_low_f16,
        vfmlalq_laneq_low_f16, vfmlslq_laneq_low_f16, vfmlal_lane_high_f16,
        vfmlsl_lane_high_f16, vfmlal_laneq_high_f16, vfmlsl_laneq_high_f16,
        vfmlalq_lane_high_f16, vfmlslq_lane_high_f16, vfmlalq_laneq_high_f16,
        vfmlslq_laneq_high_f16): ... To this.

2019-02-25  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/86096
        * df-scan.c (df_mw_compare): Do not check mw_reg fields when
        comparing mw_order values.

2019-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/89434
        * config/arm/arm.md (*subsi3_carryin_const): Use
        arm_neg_immediate_operand predicate instead of
        arm_not_immediate_operand, "L" constraint instead of "K" and
        print it using %n2 instead of %B2.
        (*subsi3_carryin_const0): New define_insn.
        (*subsi3_carryin_compare_const): Use const_int_I_operand predicate
        instead of arm_not_operand and "I" constraint instead of "K" and
        print it using %n3 instead of %B2.  Instead of using match_dup 2 add
        another match_operand and in the condition check that it is negation
        of operands[2].
        (*subsi3_carryin_compare_const0): New define_ins.
        (*subdi_di_zesidi): Adjust to use *subsi3_carryin_const0 instead of
        *subsi3_carryin_const.
        (*arm_cmpdi_insn): Fix splitting into *subsi3_carryin_compare_const,
        split into *subsi3_carryin_compare_const0 if the highpart is zero.

        PR target/89438
        * config/arm.vfp.md (*negdf2_vfp): Use
        gen_int_mode (0x80000000, SImode) instead of GEN_INT (0x80000000).
        * config/arm/neon.md (neon_copysignf<mode>): Likewise.

2019-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89445
        * simplify-rtx.c (simplify_ternary_operation): Don't use
        simplify_merge_mask on operands that may trap.
        * rtlanal.c (may_trap_p_1): Use FLOAT_MODE_P instead of
        SCALAR_FLOAT_MODE_P checks.  For integral division by zero, if
        second operand is CONST_VECTOR, check if any element could be zero.
        Don't expect traps for VEC_{MERGE,SELECT,CONCAT,DUPLICATE} unless
        their operands can trap.

2019-02-23  Martin Sebor  <msebor@redhat.com>

        * gimple-ssa-sprintf.c (target_strtol): Rename...
        (target_strtohwi): ...to this.  Handle values up to HOST_WIDE_INT_MAX.
        (parse_directive): Adjust to name change.  Use HOST_WIDE_INT_MAX to
        check for range error.

2019-02-23  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/69471
        * opts-common.c (prune_options): Also prune joined switches
        with Negative and RejectNegative.
        * config/i386/i386.opt (march=): Add Negative(march=).
        (mtune=): Add Negative(mtune=).
        * doc/options.texi: Document Negative used together with Joined
        and RejectNegative.

2019-02-22  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (Other Builtins): Add
        __builtin_is_constant_evaluated.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87609
        * tree-cfg.c (gimple_duplicate_bb): Only remap inlined cliques.

2019-02-22  Jeff Law  <law@redhat.com>

        PR rtl-optimization/87761
        * config/mips/mips.md: Add new combiner pattern to recognize
        a bitfield extraction using (ashiftrt (truncate (ashift (...)))).

2019-02-22  Matthew Malcomson  <matthew.malcomson@arm.com>

        PR target/89324
        * config/aarch64/aarch64.md: Use aarch64_general_reg predicate on
        destination register in peepholes generating patterns for ADDS/SUBS.
        (add<mode>3_compare0,
        *addsi3_compare0_uxtw, add<mode>3_compareC,
        add<mode>3_compareV_imm, add<mode>3_compareV,
        *adds_<optab><ALLX:mode>_<GPI:mode>,
        *subs_<optab><ALLX:mode>_<GPI:mode>,
        *adds_<optab><ALLX:mode>_shift_<GPI:mode>,
        *subs_<optab><ALLX:mode>_shift_<GPI:mode>,
        *adds_<optab><mode>_multp2, *subs_<optab><mode>_multp2,
        *sub<mode>3_compare0, *subsi3_compare0_uxtw,
        sub<mode>3_compare1): Allow stack pointer for source register.
        * config/aarch64/predicates.md (aarch64_general_reg): New predicate.

2019-02-22  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88993
        PR tree-optimization/88853
        * gimple-ssa-sprintf.c (sprintf_dom_walker::call_info::is_file_func):
        New helper.
        (sprintf_dom_walker::call_info::is_string_func): New helper.
        (format_directive): Only issue "may exceed" 4095/INT_MAX warnings
        for formatted string functions.
        (sprintf_dom_walker::handle_gimple_call): Fix a typo in a comment.

2019-02-22  Martin Sebor  <msebor@redhat.com>

        PR c/89425
        * c-parser.c (sizeof_ptr_memacc_comptypes): Avoid warning in
        unreachable subexpressions.

2019-02-22  H.J. Lu  <hongjiu.lu@intel.com>
            Hongtao Liu  <hongtao.liu@intel.com>
            Sunil K Pandey  <sunil.k.pandey@intel.com>

        PR target/87007
        * config/i386/i386-passes.def: Add
        pass_remove_partial_avx_dependency.
        * config/i386/i386-protos.h
        (make_pass_remove_partial_avx_dependency): New.
        * config/i386/i386.c (make_pass_remove_partial_avx_dependency):
        New function.
        (pass_data_remove_partial_avx_dependency): New.
        (pass_remove_partial_avx_dependency): Likewise.
        (make_pass_remove_partial_avx_dependency): Likewise.
        * config/i386/i386.md (avx_partial_xmm_update): New attribute.
        (*extendsfdf2): Add avx_partial_xmm_update.
        (truncdfsf2): Likewise.
        (*float<SWI48:mode><MODEF:mode>2): Likewise.
        (SF/DF conversion splitters): Disabled for TARGET_AVX.

2019-02-22  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/85598
        * gimple-ssa-sprintf.c (pass_sprintf_length::execute): Enable loop
        analysis for pass.

2019-02-22  Thiago Macieira  <thiago.macieira@intel.com>

        PR target/89444
        * config/i386/i386.h (PTA_WESTMERE): Remove PTA_AES.
        (PTA_SKYLAKE): Add PTA_AES.
        (PTA_GOLDMONT): Likewise.

2019-02-22  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_output_mi_thunk): Add bti
        instruction if enabled.
        (aarch64_override_options): Remove reference to return address key.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89440
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Remove
        not necessary assert.

2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>

        PR fortran/72741
        * omp-general.c (oacc_replace_fn_attrib): Mostly split out into...
        (oacc_replace_fn_attrib_attr): ... this new function.
        * omp-general.h (oacc_replace_fn_attrib_attr): New prototype.
        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Revert workaround.

2019-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/arm-cpus.in (ares): Rename to...
        (neoverse-n1): ... This.  Add ares as alias.
        * config/arm/arm-tables.opt: Regenerate.
        * config/arm/arm-tune.md: Likewise.
        * doc/invoke.txt (ARM Options): Document neoverse-n1.

2019-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-cores.def (neoverse-e1): Define.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.texi (AArch64 Options): Document neoverse-e1 -mcpu option.

2019-02-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (ares_tunings): Rename to...
        (neoversen1_tunings): ... This.
        * config/aarch64/aarch64-cores.def (ares): Change tuning to the above.
        (neoverse-n1): New CPU.
        * config/aarch64/aarch64-tune.md: Regenerate.
        * doc/invoke.txt (AArch64 Options): Document neoverse-n1.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR middle-end/87609
        * cfghooks.h (dependence_hash): New typedef.
        (struct copy_bb_data): New type.
        (cfg_hooks::duplicate_block): Adjust to take a copy_bb_data argument.
        (duplicate_block): Likewise.
        * cfghooks.c (duplicate_block): Pass down copy_bb_data.
        (copy_bbs): Create and pass down copy_bb_data.
        * cfgrtl.c (cfg_layout_duplicate_bb): Adjust.
        (rtl_duplicate_bb): Likewise.
        * tree-cfg.c (gimple_duplicate_bb): If the copy_bb_data arg is not NULL
        remap dependence info.

2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87609
        * tree-core.h (tree_base): Document special clique values.
        * tree-inline.c (remap_dependence_clique): Do not use the
        special clique value of one.
        (maybe_set_dependence_info): Use clique one.
        (clear_dependence_clique): New callback.
        (compute_dependence_clique): Clear clique one from all refs
        before assigning it (again).

2019-02-21  Martin Sebor  <msebor@redhat.com>

        * doc/extend.texi (__clear_cache): Correct signature.

2019-02-21  Ian Lance Taylor  <iant@golang.org>

        PR go/89170
        * varasm.c (decode_addr_const): Call lookup_constant_def rather
        than output_constant_def.
        (add_constant_to_table): New static function.
        (output_constant_def): Call add_constant_to_table.
        (tree_output_constant_def): Likewise.

2019-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89285
        * builtins.c (fold_builtin_arith_overflow): If first two args are
        INTEGER_CSTs, set intres and ovfres to constants rather than calls
        to ifn.

2019-02-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/87412
        * config/i386/i386.c (ix86_set_indirect_branch_type): Issue an
        error for -mindirect-branch/-mfunction-return with incompatible
        -fcf-protection.

2019-02-21  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * constraints.md (q): Remove.
        * config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use rk constraint
        instead of q.

2019-02-21  Martin Jambor  <mjambor@suse.cz>

        PR hsa/89302
        * omp-general.c (omp_extract_for_data): Removed a duplicate call
        to omp_adjust_for_condition, moved NE_EXPR code_cond processing...
        (omp_adjust_for_condition): ...here.  Added necessary parameters.
        * omp-general.h (omp_adjust_for_condition): Updated declaration.
        * omp-grid.c (grid_attempt_target_gridification): Adjust to pass
        proper values to new parameters of omp_adjust_for_condition.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89412
        * expr.c (expand_assignment): If result is a MEM, use change_address
        instead of simplify_gen_subreg.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>
            David Malcolm  <dmalcolm@redhat.com>

        PR middle-end/89091
        * fold-const.c (decode_field_reference): Return NULL_TREE if
        lang_hooks.types.type_for_size returns NULL.  Check it before
        overwriting *exp_.  Use return NULL_TREE instead of return 0.

2019-02-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/88074
        PR middle-end/89415
        * toplev.c (do_compile): Double the emin/emax exponents to workaround
        buggy mpc_norm.

2019-02-20  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89397
        * config/i386/i386.c (ix86_atomic_assign_expand_fenv): Check
        TARGET_SSE in addition to TARGET_SSE_MATH.

        (ix86_excess_precision): Ditto.
        (ix86_float_exceptions_rounding_supported_p): Ditto.
        (use_rsqrt_p): Ditto.
        * config/i386/sse.md (rsqrt<mode>2): Ditto.

2019-02-20  David Malcolm  <dmalcolm@redhat.com>

        PR c/89410
        * diagnostic-show-locus.c (layout::calculate_line_spans): Use
        linenum_arith_t when determining if two adjacent line spans are
        close enough to merge.
        (diagnostic_show_locus): Use linenum_arith_t when iterating over
        lines within each line_span.

2019-02-20 Andre Vieira  <andre.simoesdiasvieira@arm.com>

        PR target/86487
        * lra-constraints.c(uses_hard_regs_p): Fix handling of
        paradoxical SUBREGS.

2019-02-20  Li Jia He  <helijia@linux.ibm.com>

        PR target/88100
        * gcc/config/rs6000/rs6000.c (rs6000_gimple_fold_builtin)
        <case ALTIVEC_BUILTIN_VSPLTISB, ALTIVEC_BUILTIN_VSPLTISH,
        ALTIVEC_BUILTIN_VSPLTISW>: Don't convert the operand before
        range checking it.

2019-02-19  Jonathan Wakely  <jwakely@redhat.com>

        * config/gcn/gcn.c (print_operand): Fix typo.

2019-02-19  Richard Biener  <rguenther@suse.de>

        PR middle-end/88074
        * toplev.c (do_compile): Initialize mpfr's exponent range
        based on available float modes.

2019-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * rtlanal.c (get_initial_register_offset): Fall back to the estimate
        as long as the epilogue isn't completed.

2019-02-18  Martin Sebor  <msebor@redhat.com>

        * doc/cpp.texi (Conditional syntax): Add __has_attribute,
        __has_cpp_attribute, and __has_include.

2019-02-18  Martin Sebor  <msebor@redhat.com>

        * doc/invoke.texi (-Wreturn-type): Correct and expand.

2019-02-18  Martin Sebor  <msebor@redhat.com>

        PR middle-end/89294
        * tree.c (valid_constant_size_p): Avoid assuming size is a constant
        expression.
        * tree.h (cst_size_error): Add the cst_size_not_constant enumerator.

2019-02-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89296
        * tree-ssa-loop-ch.c (ch_base::copy_headers): Restrict setting
        of no-warning flag to cases that might emit the bogus warning.

2019-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * config/arm/arm.md (*arm_movdi, *movdf_soft_insn): Use "r" instead of
        "q" constraint.
        * config/arm/vfp.md (*movdi_vfp): Likewise.
        * config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use "r" instead of
        "q" constraint for operands[0].

        PR target/89369
        * config/s390/s390.md (*r<noxa>sbg_<mode>_srl_bitmask,
        *r<noxa>sbg_<mode>_sll, *r<noxa>sbg_<mode>_srl): Don't construct
        pattern in a temporary buffer.
        (*r<noxa>sbg_sidi_srl): Likewise.  Always use 32 as I3 rather
        than 64-operands[2].

        PR target/89361
        * config/s390/s390.c (s390_indirect_branch_attrvalue,
        s390_indirect_branch_settings): Define unconditionally.
        (s390_set_current_function): Likewise, but guard the whole body except
        the s390_indirect_branch_settings call with
        #if S390_USE_TARGET_ATTRIBUTE.
        (TARGET_SET_CURRENT_FUNCTION): Redefine unconditionally.

        * config/s390/s390.md (*<risbg_n>_ior_and_sr_ze,
        *<risbg_n>_<mode>_ior_and_lshiftrt, *<risbg_n>_sidi_ior_and_lshiftrt):
        Use HOST_WIDE_INT_M1U instead of ~(0ULL).
        (*<risbg_n>_and_subregdi_rotr, *<risbg_n>_and_subregdi_rotl): Use
        HOST_WIDE_INT_1U instead of 1ULL.
        (*pre_z10_extzv<mode>, *pre_z10_extv<mode>): Change mask type from int
        to unsigned HOST_WIDE_INT, use HOST_WIDE_INT_1U instead of 1ul.
        (*insv<mode><clobbercc_or_nocc>_appendbitsleft,
        z = (x << c) | (y >> d) splitters): Use HOST_WIDE_INT_1U
        instead of 1UL.
        (*insv<mode>_mem_reg, *insvdi_mem_reghigh): Use HOST_WIDE_INT_1U
        instead of 1ul.

2019-02-18  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/89209
        * tree-sra.c (create_access_replacement): New optional parameter
        reg_tree.  Use it as a type if non-NULL and access type is not of
        a register type.
        (get_repl_default_def_ssa_name): New parameter REG_TYPE, pass it
        to create_access_replacement.
        (sra_modify_assign): Pass LHS type to get_repl_default_def_ssa_name.
        Check lacc is non-NULL before attempting to re-create it on the RHS.

2019-02-18  Martin Liska  <mliska@suse.cz>

        PR ipa/89306
        * cgraph.c (symbol_table::create_edge): Set m_summary_id to -1
        by default.
        (symbol_table::free_edge): Recycle m_summary_id.
        * cgraph.h (get_summary_id): New.
        (symbol_table::release_symbol): Set m_summary_id to -1
        by default.
        (symbol_table::allocate_cgraph_symbol): Recycle m_summary_id.
        * ipa-fnsummary.c (ipa_fn_summary_t): Switch from
        function_summary to fast_function_summary.
        * ipa-fnsummary.h (ipa_fn_summary_t): Likewise.
        * ipa-pure-const.c (class funct_state_summary_t):
        Switch from function_summary to fast_function_summary.
        * ipa-reference.c (class ipa_ref_var_info_summary_t): Likewise.
        (class ipa_ref_opt_summary_t): Switch from function_summary
        to fast_function_summary.
        * symbol-summary.h (class function_summary_base): New class
        that is created from base of former function_summary.
        (function_summary_base::unregister_hooks): New.
        (class function_summary): Inherit from function_summary_base.
        (class call_summary_base): New class
        that is created from base of former call_summary.
        (class call_summary): Inherit from call_summary_base.
        (struct is_same): New.
        (class fast_function_summary): New summary class.
        (class fast_call_summary): New summary class.
        * vec.h (vec_safe_grow_cleared): New function.

2019-02-18  Martin Liska  <mliska@suse.cz>

        * config/i386/i386.c (ix86_get_multilib_abi_name): New function.
        (TARGET_GET_MULTILIB_ABI_NAME): New macro defined.
        * doc/tm.texi: Document new target hook.
        * doc/tm.texi.in: Likewise.
        * target.def: Add new target macro.
        * gcc.c (find_fortran_preinclude_file): Do not search multilib
        suffixes.

2019-02-17  Alan Modra  <amodra@gmail.com>

        PR target/89271
        * config/rs6000/rs6000.md (<bd>_<mode> split): Check for an int
        output reg on add insn.
        (<bd>tf_<mode> split): Likewise.  Match predicates with insn.

2019-02-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89372
        * config/i386/sse.md (ssedoublemode): Remove V4HI.
        (PMULHRSW): Likewise.
        (<ssse3_avx2>_pmulhrsw<mode>3): Require TARGET_SSSE3, not
        TARGET_AVX2.
        (ssse3_pmulhrswv4hi3): New expander.

2019-02-16  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/mmx.md (*vec_extractv2si_zext_mem): Doesn't require
        MMX.  Add isa attribute.

2019-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/66152
        * builtins.h (c_readstr): Declare.
        * builtins.c (c_readstr): Remove forward declaration.  Add
        null_terminated_p argument, if false, read all bytes from the
        string instead of stopping after '\0'.
        * expr.c (string_cst_read_str): New function.
        (store_expr): Use string_cst_read_str instead of
        builtin_strncpy_read_str.  Try to store by pieces the whole
        exp_len first, and only if that fails, split it up into
        store by pieces followed by clear_storage.  Formatting fix.

        * config/i386/i386.md (*movqi_internal): Remove static from
        buf variable.  Use output_asm_insn (buf, operands); return "";
        instead of return buf;.
        * config/i386/sse.md (<sse>_andnot<mode>3<mask_name>,
        *<code><mode>3<mask_name>, *andnot<mode>3, *andnottf3, *<code><mode>3,
        *<code>tf3, <mask_codefor><code><mode>3<mask_name>): Likewise.

2019-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/linux.h (ASAN_CC1_SPEC): Define.
        (CC1_SPEC): Use GNU_USER_TARGET_CC1_SPEC and ASAN_CC1_SPEC.
        * config/sparc/linux64.h (ASAN_CC1_SPEC): Likewise.
        (CC1_SPEC): Likewise.
        * config/sparc/sparc.c (sparc_asan_shadow_offset): Adjust for 64-bit.

2019-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * asan.c (asan_emit_stack_protection): Use full-sized mask to align
        the base address on 64-bit strict-alignment platforms.

2019-02-15  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (VALID_MMX_REG_MODE): Correct the misplaced ')'.

2019-02-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/darwin.h (TARGET_FPMATH_DEFAULT_P): New define.

2019-02-15  Aaron Sawdey  <acsawdey@linux.ibm.com>

        PR rtl-optimization/88308
        * shrink-wrap.c (move_insn_for_shrink_wrap): Fix LABEL_NUSES counts
        on copied instruction.

2019-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * final.c (insn_current_reference_address): Replace test on JUMP_P
        with test on jump_to_label_p.
        * config/visium/visium-passes.def: New file.
        * config/visium/t-visium (PASSES_EXTRA): Define.
        * config/visium/visium-protos.h (make_pass_visium_reorg): Declare.
        * config/visium/visium.h (TRAMPOLINE_SIZE): Adjust.
        (TRAMPOLINE_ALIGNMENT): Define.
        * config/visium/visium.c (visium_option_override): Do not register
        the machine-specific reorg pass here.
        (visium_trampoline_init): Align the BRA insn on a 64-bit boundary
        for the GR6.
        (output_branch): Adjust threshold for long branch instruction.
        * config/visium/visium.md (cpu): Move around.
        (length): Adjust for the GR6.

2019-02-15  Richard Biener  <rguenther@suse.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89278
        * tree-loop-distribution.c: Include tree-eh.h.
        (generate_memset_builtin, generate_memcpy_builtin): Call
        rewrite_to_non_trapping_overflow on builtin->size before passing it
        to force_gimple_operand_gsi.

2019-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR other/89342
        * optc-save-gen.awk: Handle optimize_fast like optimize_size or
        optimize_debug.
        * opth-gen.awk: Likewise.

2019-02-15  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_SUBTARGET64_ISA_DEFAULT):
        Enable MMX, SSE and SSE2 by default.
        * config/i386/i386.c (ix86_option_override_internal): Do not
        explicitly set MMX, SSE and SSE2 flags for TARGET_64BIT here.

2019-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89354
        * combine.c (make_extraction): Punt if extraction_mode is narrower
        than len bits.

2019-02-14  Maya Rashish  <coypu@sdf.org>

        * config.gcc (*-*-netbsd*): Add netbsd-d.o.
        * config/netbsd-d.c: New file.
        * config/t-netbsd: Add netbsd-d.o

2018-02-14  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_attribute_table): Change
        affects_type_identity to true for aarch64_vector_pcs.
        (aarch64_comp_type_attributes): New function.
        (TARGET_COMP_TYPE_ATTRIBUTES): New macro.

2019-02-14  Tamar Christina  <tamar.christina@arm.com>

        PR target/88850
        * config/arm/iterators.md (ANY64): Add V4HF.

2019-02-14  Martin Liska  <mliska@suse.cz>

        PR rtl-optimization/89242
        * dce.c (delete_unmarked_insns): Call free_dominance_info we
        process a transformation.

2019-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89314
        * fold-const.c (fold_binary_loc): Cast strlen argument to
        const char * before dereferencing it.  Formatting fixes.

        PR middle-end/89284
        * passes.def: Swap pass_ubsan and pass_early_warn_uninitialized.

2019-02-13  Ian Lance Taylor  <iant@golang.org>

        * optc-save-gen.awk: Set var_opt_hash for initial optimizations
        and set current index for other optimizations.

2019-02-13  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (vec_set<VI4F_256_512:mode>_0): Use
        nonimmediate_operand as operand 2 predicate.
        (vec_set<VF2_512_256:mode>_0): Ditto.
        (vec_set<VI8_AVX_AVX512F:mode>_0): Ditto.
        (*vec_concatv2si): Remove alternative 2.
        (*vec_concatv4si_0): Use vm constraint for alternative 0.
        (*vec_concatv4si_0): Remove preferred_for_speed attribute.
        (vec_concatv2di): Split alternatives 4,5,6 to ...
        (*vec_concatv2di_0) ... new pattern.

2019-02-13  Wilco Dijkstra  <wdijkstr@arm.com>

        PR target/89190
        * config/arm/arm.c (ldm_stm_operation_p) Set
        addr_reg_in_reglist correctly for first register.
        (load_multiple_sequence): Remove dead base check.
        (gen_ldm_seq): Correctly set write_back for Thumb-1.

2019-02-13  Tamar Christina  <tamar.christina@arm.com>

        PR target/88847
        * config/aarch64/aarch64-sve.md (*pred_mov<mode>, pred_mov<mode>):
        Expose as @aarch64_pred_mov.
        * config/aarch64/aarch64.c (aarch64_classify_address):
        Use expand_insn which legitimizes operands.

2019-02-13  Martin Liska  <mliska@suse.cz>

        * builtins.h (expand_builtin_with_bounds): Remove declaration.
        * calls.c (struct arg_data): Remove special_slot, pointer_arg
        and pointer_offset fields.
        (initialize_argument_information): Remove usage of dead
        fields.
        * cgraph.h (struct cgraph_thunk_info): Remove
        add_pointer_bounds_args.
        * cgraphunit.c (cgraph_node::expand_thunk): Remove usage of dead
        fields.
        (cgraph_node::assemble_thunks_and_aliases): Remove usage of dead
        fields.
        * config/i386/i386.c (ix86_function_arg_advance): Remove
        unrelated comment.
        (struct builtin_isa): Remove leaf_p and nothrow_p fields.
        (def_builtin):  Remove usage of dead
        fields.
        (ix86_add_new_builtins): Likewise.
        * ipa-fnsummary.c (compute_fn_summary): Likewise.
        * ipa-icf.c (sem_function::equals_wpa): Likewise.
        (sem_function::init): Likewise.
        (sem_variable::merge): Likewise.
        * ipa-visibility.c (function_and_variable_visibility): Likewise.
        * ipa.c (symbol_table::remove_unreachable_nodes): Likewise.
        * lto-cgraph.c (lto_output_node): Likewise.
        (lto_output_varpool_node): Likewise.
        (input_node): Likewise.
        (input_varpool_node): Likewise.
        * lto-streamer-out.c (lto_output): Likewise.
        * tree-inline.c (expand_call_inline): Remove usage of
        assign_stmts.
        * tree-inline.h (struct copy_body_data): Likewise.
        * varpool.c (varpool_node::dump): Likewise.

2019-02-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89303
        * tree-ssa-structalias.c (set_uids_in_ptset): Or in vi->is_heap_var
        into pt->vars_contains_escaped_heap instead of setting
        pt->vars_contains_escaped_heap to it.

        PR middle-end/89281
        * optabs.c (prepare_cmp_insn): Use UINTVAL (size) instead of
        INTVAL (size), compare it to GET_MODE_MASK instead of
        1 << GET_MODE_BITSIZE.

        PR target/89290
        * config/i386/predicates.md (x86_64_immediate_operand): Allow
        TLS UNSPECs offsetted by signed 32-bit CONST_INT even with
        -mcmodel=large.

2019-02-13  Martin Liska  <mliska@suse.cz>

        PR lto/88858
        * cfgrtl.c (remove_barriers_from_footer): New function.
        (try_redirect_by_replacing_jump): Use it.
        (cfg_layout_redirect_edge_and_branch): Likewise.

2019-02-13  Xiong Hu Luo  <luoxhu@linux.vnet.ibm.com>

        * config/rs6000/altivec.h (vec_sbox_be, vec_cipher_be,
        vec_cipherlast_be, vec_ncipher_be, vec_ncipherlast_be): New #defines.
        * config/rs6000/crypto.md (CR_vqdi): New define_mode_iterator.
        (crypto_vsbox_<mode>, crypto_<CR_insn>_<mode>): New define_insns.
        * config/rs6000/rs6000-builtin.def (VSBOX_BE): New BU_CRYPTO_1.
        (VCIPHER_BE, VCIPHERLAST_BE, VNCIPHER_BE, VNCIPHERLAST_BE):
        New BU_CRYPTO_2.
        * config/rs6000/rs6000.c (builtin_function_type)
        <CRYPTO_BUILTIN_VSBOX_BE, CRYPTO_BUILTIN_VCIPHER_BE,
        CRYPTO_BUILTIN_VCIPHERLAST_BE, CRYPTO_BUILTIN_VNCIPHER_BE,
        CRYPTO_BUILTIN_VNCIPHERLAST_BE>: New switch options.
        * doc/extend.texi (vec_sbox_be, vec_cipher_be, vec_cipherlast_be,
        vec_ncipher_be, vec_ncipherlast_be): New builtin functions.

2019-02-12  Pat Haugen  <pthaugen@us.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Remove duplicate
        -maltivec. Delete -maltivec=be and -maltivec=le documentation.

2019-02-12  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89229
        * config/i386/i386.md (*movoi_internal_avx): Revert revision
        268678 and revision 268657.
        (*movti_internal): Likewise.

2019-02-12  Ilya Leoshkevich  <iii@linux.ibm.com>

        PR target/89233
        * config/s390/s390.c (s390_decompose_address): Update comment.
        (s390_check_qrst_address): Reject invalid address forms after
        LRA.

2019-02-12  Martin Liska  <mliska@suse.cz>

        PR lto/88876
        * ipa-pure-const.c (propagate_pure_const): Revert hunk as
        we need default values of funct_state for a function that
        is not optimized.

2019-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * asan.c (asan_expand_mark_ifn): Take into account the alignment of
        the object to pick the size of stores on strict-alignment platforms.

        * config/sparc/sparc.md (*movsi_insn): Minor tweak.
        (*movdi_insn_sp32): Likewise.
        (*movdi_insn_sp64): Likewise.

2019-02-12  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/88677
        * cgraphunit.c (analyze_functions): Clear READONLY flag for external
        types that needs constructiong.
        * tree.h (may_be_aliased): Do not check TYPE_NEEDS_CONSTRUCTING.

2019-02-12  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89253
        * tree-ssa-loop-split.c (tree_ssa_split_loops): Check we can
        duplicate the loop.

2019-02-11  David Malcolm  <dmalcolm@redhat.com>

        PR lto/88147
        * input.c (selftest::test_line_offset_overflow): New selftest.
        (selftest::input_c_tests): Call it.

2019-02-11  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88771
        * gimple-ssa-warn-restrict.c (pass_wrestrict::gate): Also enable
        when -Wstringop-overflow is set.
        (builtin_memref::builtin_memref): Adjust excessive upper bound
        only when lower bound is not excessive.
        (maybe_diag_overlap): Detect and diagnose excessive bounds via
        -Wstringop-ovefflow.
        (maybe_diag_offset_bounds): Rename...
        (maybe_diag_access_bounds): ...to this.
        (check_bounds_or_overlap): Adjust for name change above.

2019-02-11  Martin Sebor  <msebor@redhat.com>

        PR c++/87996
        * builtins.c (max_object_size): Move from here...
        * builtins.h (max_object_size): ...and here...
        * tree.c (max_object_size): ...to here...
        * tree.h (max_object_size): ...and here.

2019-02-11  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Shift-right
        and shift-left vector built-ins need to include a TRUNC_MOD_EXPR
        for correct semantics.

2019-02-11  Alan Modra  <amodra@gmail.com>

        * doc/invoke.texi (man page RS/6000 and PowerPC Options): Mention
        -mlongcall and -mpltseq.
        (RS/6000 and PowerPC Options <-mlongcall>): Mention inline PLT calls.
        (RS/6000 and PowerPC Options <-mpltseq>): Document.
        * config/rs6000/rs6000.h (TARGET_PLTSEQ): Define.
        * config/rs6000/sysv4.opt (mpltseq): New option.
        * config/rs6000/sysv4.h (TARGET_PLTSEQ): Redefine.
        (SUBTARGET_OVERRIDE_OPTIONS): Error if given -mpltseq when assembler
        support is lacking.  Don't allow -mpltseq with -mbss-plt.
        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Warn if
        -mpltseq given for ELFv1.
        * config/rs6000/rs6000.c (rs6000_call_aix): Comment on UNSPEC_PLTSEQ.
        Only use UNSPEC_PLTSEQ for inline PLT calls.
        (rs6000_call_sysv, rs6000_sibcall_sysv): Expand comments.  Only
        use UNSPEC_PLTSEQ for inline PLT calls.
        (rs6000_indirect_call_template_1, rs6000_longcall_ref),
        (rs6000_call_aix, rs6000_call_sysv, rs6000_sibcall_sysv): Replace
        uses of HAVE_AS_PLTSEQ with TARGET_PLTSEQ, simplifying.
        * config/rs6000/rs6000.md (pltseq_tocsave_<mode>),
        (pltseq_plt16_ha_<mode>, pltseq_plt16_lo_<mode>),
        (pltseq_mtctr_<mode>): Likewise.

2019-02-11  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * acinclude.m4 (gcc_AC_INITFINI_ARRAY): Use 8-byte strings with
        Solaris ld.
        * configure: Regenerate.

2019-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use q constraint
        instead of r.

2019-02-11  Hans-Peter Nilsson  <hp@axis.com>

        * function.c (assign_parm_setup_block): Use the stored
        size, not the passed size, when allocating stack-space,
        also for a parameter with alignment larger than
        MAX_SUPPORTED_STACK_ALIGNMENT.

2019-02-11  Martin Liska  <mliska@suse.cz>

        PR ipa/89009
        * ipa-cp.c (build_toporder_info): Remove usage of a param.
        * ipa-inline.c (inline_small_functions): Likewise.
        * ipa-pure-const.c (propagate_pure_const): Likewise.
        (propagate_nothrow): Likewise.
        * ipa-reference.c (propagate): Likewise.
        * ipa-utils.c (struct searchc_env): Remove unused field.
        (searchc): Always search across AVAIL_INTERPOSABLE.
        (ipa_reduced_postorder): Always allow AVAIL_INTERPOSABLE as
        the only called IPA pure const can properly not propagate
        across interposable boundary.
        * ipa-utils.h (ipa_reduced_postorder): Remove param.

2019-02-11  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32.md (call_internal, call_value_internal,
        sibcall_internal, sibcall_value_internal): Use SImode for mem rtx.

2019-02-11  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.c (cris_preferred_minimum_alignment): Fix name
        typo.

2019-02-10  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/constraints.md (Yd): Replace AVX512BW with AVX512DQ
        in comments

2019-02-10  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config.gcc (with_nds32_lib): Set default --with-nds32-lib correctly.

2019-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89268
        * tree-if-conv.c (version_loop_for_if_conversion): Push to preds only
        if preds is non-NULL.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/89272
        * tree.c (fld_simplified_type_name): Also keep TYPE_DECL for
        polymorphic types.

2019-02-10  Monk Chiang  <sh.chiang04@gmail.com>

        * config/nds32/nds32.md (trap): New pattern.

2019-02-10  Monk Chiang  <sh.chiang04@gmail.com>

        * config/nds32/nds32.c (nds32_dwarf_register_span): Refine register
        dwarf span.

2019-02-10  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32-md-auxiliary.c (nds32_spilt_doubleword): Support
        to split POST_INC.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-visibility.c (localize_node): Also do not localize
        LDPR_PREVAILING_DEF_IRONLY_EXP.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/87957
        * tree.c (fld_simplified_type_name): Use DECL_ASSEMBLER_NAME_SET_P
        instead of type_with_linkage.

2019-02-09  Jan Hubicka  <hubicka@ucw.cz>

        PR ipa/88755
        * params.def (uninlined-function-insns, uninlined-function-time,
        uninlined-thunk-insns, uninlined-thunk-time): Add artificial upper
        bound so we don't get overflows.

2019-02-09  Aaron Sawdey  <acsawdey@linux.ibm.com>

        * config/rs6000/rs6000-string.c (expand_compare_loop,
        expand_block_compare): Insert REG_BR_PROB notes in inline expansion of
        memcmp/strncmp.

2019-02-09  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89246
        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        If !node->definition and TYPE_ARG_TYPES is non-NULL, use
        TYPE_ARG_TYPES instead of DECL_ARGUMENTS.

2019-02-09  Alan Modra  <amodra@gmail.com>

        PR target/88343
        * config/rs6000/rs6000.c (save_reg_p): Correct calls_eh_return
        case.  Match logic in rs6000_emit_prologue emitting pic_offset_table
        setup.

2019-02-08  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/88560
        * lra-constraints.c (process_alt_operands): Don't increase reject
        for memory when offset memory is required.

2019-02-08  Robin Dapp  <rdapp@linux.ibm.com>

        * config/s390/vector.md: Implement vector copysign.

2019-02-08  H.J. Lu  <hongjiu.lu@intel.com>

        * expr.c (expand_constructor): Correct indentations.

2019-02-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89247
        * tree-if-conv.c: Include tree-cfgcleanup.h.
        (version_loop_for_if_conversion): Record LOOP_VECTORIZED call.
        (tree_if_conversion): Pass through predicate vector.
        (pass_if_conversion::execute): Do CFG cleanup and SSA update
        inline, see if any if-converted loops we refrece in
        LOOP_VECTORIZED calls vanished and fixup.
        * tree-if-conv.h (tree_if_conversion): Adjust prototype.

2019-02-08  Ilya Leoshkevich  <iii@linux.ibm.com>

        * config/s390/constraints.md (jdd): New constraint.

2019-02-08  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89229
        * config/i386/i386.md (*movoi_internal_avx): Set mode to XI for
        upper 16 vector registers without TARGET_AVX512VL.
        (*movti_internal): Likewise.

2019-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/89234
        * except.c (copy_reg_eh_region_note_forward): Return if note_or_insn
        is a NOTE, CODE_LABEL etc. - rtx_insn * other than INSN_P.
        (copy_reg_eh_region_note_backward): Likewise.

2019-02-08  Richard Biener  <rguenther@suse.de>

        PR middle-end/89223
        * tree-data-ref.c (initialize_matrix_A): Fail if constant
        doesn't fit in HWI.
        (analyze_subscript_affine_affine): Handle failure from
        initialize_matrix_A.

2019-02-08  Jakub Jelinek  <jakub@redhat.com>

        * cfganal.c (pre_and_rev_post_order_compute_fn): Use fn instead of
        cfun everywhere.

2019-02-07  David Malcolm  <dmalcolm@redhat.com>

        PR tree-optimization/86637
        PR tree-optimization/89235
        * tree-vect-loop.c (optimize_mask_stores): Add an
        auto_purge_vect_location sentinel to ensure that vect_location is
        purged on exit.
        * tree-vectorizer.c
        (auto_purge_vect_location::~auto_purge_vect_location): New dtor.
        (try_vectorize_loop_1): Add an auto_purge_vect_location sentinel
        to ensure that vect_location is purged on exit.
        (pass_slp_vectorize::execute): Likewise, replacing the manual
        reset.
        * tree-vectorizer.h (class auto_purge_vect_location): New class.

2019-02-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/iterators.md (max_opp): New code_attr.
        (USMAX): New code iterator.
        * config/aarch64/predicates.md (aarch64_smin): New predicate.
        (aarch64_smax): Likewise.
        * config/aarch64/aarch64-simd.md (abd<mode>_3): Rename to...
        (*aarch64_<su>abd<mode>_3): ... Change RTL representation to
        MINUS (MAX MIN).

2019-02-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/89229
        * config/i386/i386.md (*movoi_internal_avx): Set mode to OI
        for TARGET_AVX512VL.
        (*movti_internal): Set mode to TI for TARGET_AVX512VL.

2019-02-07  Andreas Krebbel  <krebbel@linux.ibm.com>

        * config/s390/s390-builtin-types.def: Add new types.
        * config/s390/s390-builtins.def: (s390_vec_xl, s390_vec_xld2)
        (s390_vec_xlw4): Make the memory operand into a const pointer.
        (s390_vec_xld2, s390_vec_xlw4): Add a variant for single precision
        float.
        * config/s390/s390-c.c (s390_expand_overloaded_builtin): Generate
        a new vector type with the alignment of the scalar memory operand.

2019-02-07  Matthew Malcomson  <matthew.malcomson@arm.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * config/arm/arm-protos.h (valid_operands_ldrd_strd,
        arm_count_ldrdstrd_insns): New declarations.
        * config/arm/arm.c (mem_ok_for_ldrd_strd): Remove broken handling of
        MINUS.
        (valid_operands_ldrd_strd): New function.
        (arm_count_ldrdstrd_insns): New function.
        * config/arm/ldrdstrd.md: Change peepholes to generate PARALLEL SImode
        sets instead of single DImode set and define new insns to match this.

2019-02-07  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_fcmla_lane_builtin_data):
        Make it a C initializer.

2019-02-07  Tamar Christina  <tamar.christina@arm.com>

        PR/target 88850
        * config/arm/neon.md (*neon_mov<mode>): Add r -> r case.

2019-02-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/neon.md (neon_<sup>dot<vsi2qi>):
        Use neon_dot<q> for type.
        (neon_<sup>dot_lane<vsi2qi>): Likewise.

2019-02-07  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64-simd.md (aarch64_<sur>dot<vsi2qi>):
        Use neon_dot<q> for type.
        (aarch64_<sur>dot_lane<vsi2qi>): Likewise.
        (aarch64_<sur>dot_laneq<vsi2qi>): Likewise.

2019-02-06  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/89225
        * lra-constaints.c (simplify_operand_subreg): Add subreg mode
        sizes check.

2019-02-06  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/i386.c (ix86_expand_prologue): Emit a memory blockage
        after restoring registers saved to allocate the frame on Windows.

2019-02-06  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89182
        * graphite.h (cached_scalar_evolution_in_region): Declare.
        * graphite.c (struct seir_cache_key): New.
        (struct sese_scev_hash): Likewise.
        (seir_cache): New global.
        (cached_scalar_evolution_in_region): New function.
        (graphite_transform_loops): Allocate and release seir_cache.
        * graphite-isl-ast-to-gimple.c (get_rename_from_scev): Use
        cached_scalar_evolution_in_region.
        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Simplify.
        (scop_detection::graphite_can_represent_expr: Use
        cached_scalar_evolution_in_region.
        (scop_detection::stmt_simple_for_scop_p): Likewise.
        (find_params_in_bb): Likewise.
        (gather_bbs::before_dom_children): Likewise.
        * graphite-sese-to-poly.c (create_pw_aff_from_tree): Likewise.
        (add_loop_constraints): Likewise.

2019-02-06  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89210
        * fold-const-call.c (fold_const_vec_convert): Pass true as last
        operand to new_unary_operation only if both element types are integral
        and it isn't a widening conversion.  Return NULL_TREE if
        new_unary_operation failed.

2019-02-05  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR target/88856
        * config/s390/s390.md: Remove load and test FP splitter.

2019-02-05  Aaron Sawdey  <acsawdey@linux.ibm.com>

        PR target/89112
        * config/rs6000/rs6000-string.c (do_ifelse, expand_cmp_vec_sequence,
        expand_compare_loop, expand_block_compare_gpr,
        expand_strncmp_align_check, expand_strncmp_gpr_sequence): Insert
        REG_BR_PROB notes in inline expansion of memcmp/strncmp. Add
        #include "profile-count.h" and "predict.h" for types and functions
        needed to work with REG_BR_PROB notes.

2019-02-05  Aaron Sawdey  <acsawdey@linux.ibm.com>

        PR target/89112
        * config/rs6000/rs6000.md (<bd>tf_<mode>): Generate a local label
        for the long branch case.

2019-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/89188
        * dce.c (delete_unmarked_insns): Don't remove no-op moves if they
        can throw, non-call exceptions are enabled and we can't delete
        dead exceptions or alter cfg.  Set must_clean if
        delete_insn_and_edges returns true, don't set it blindly for calls.
        Assert that delete_unreachable_blocks is called only if can_alter_cfg.

        PR rtl-optimization/89195
        * combine.c (make_extraction): For MEMs, don't extract bytes outside
        of the original MEM.

2019-02-05  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/89000
        * gcov.c (function_summary): Remove argument.
        (file_summary): New function.
        (print_usage): Replace tabs with spaces.
        (generate_results): Use new function file_summary.

2019-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR target/89186
        * optabs.c (prepare_cmp_insn): Pass x and y to
        emit_block_comp_via_libcall rather than XEXP (x, 0) and XEXP (y, 0).

2019-02-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/89150
        * bitmap.h (struct bitmap_obstack): Do not mark GTY.
        (struct bitmap_element): Drop chain_prev so we properly recurse on
        the prev member, supporting tree views.
        (struct bitmap_head): GTY skip the obstack member.

2019-02-04  Alexander Monakov  <amonakov@ispras.ru>

        PR c/88698
        * doc/extend.texi (Vector Extensions): Add an example of using vector
        types together with x86 intrinsics.

2019-02-04  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_indirect_call_template_1): Increase
        str[] size to 160, and comment.

2019-02-04  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (rs6000_indirect_call_template_1),
        (rs6000_pltseq_template): Guard output of TLS markers with
        TARGET_TLS_MARKERS.
        (rs6000_longcall_ref, rs6000_call_aix, rs6000_call_sysv),
        (rs6000_sibcall_sysv): Ignore TARGET_TLS_MARKERS when deciding
        to use inline PLT sequences.
        * config/rs6000/rs6000.md (pltseq_tocsave_<mode>),
        (pltseq_plt16_ha_<mode>, pltseq_plt16_lo_<mode>),
        (pltseq_mtctr_<mode>): Don't test TARGET_TLS_MARKERS in predicate.

2019-02-04  Martin Liska  <mliska@suse.cz>

        PR ipa/88985
        * ipa-fnsummary.c (estimate_edge_devirt_benefit): Bail
        out when ipa_fn_summaries does not contain entry for callee.

2019-02-04  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.h: Remove superfluous blank lines.
        * config/sparc/sparc.c (global_offset_table_rtx): Rename into...
        (got_register_rtx): ...this.
        (sparc_got): Adjust to above renaming.
        (sparc_tls_got): Likewise.
        (sparc_delegitimize_address): Likewise.
        (sparc_output_mi_thunk): Likewise.
        (sparc_init_pic_reg): Likewise.
        (save_local_or_in_reg_p): Fix test on the GOT register.
        (USE_HIDDEN_LINKONCE): Move around.
        (get_pc_thunk_name): Likewise.
        (gen_load_pcrel_sym): Likewise.
        (load_got_register): Likewise.

2019-02-04  Kito Cheng  <kito.cheng@gmail.com>

        * config/nds32/linux.h (GLIBC_DYNAMIC_LINKER): Define the naming rule
        of the dynamic linker: "ld-linux-nds32[le|be][f].so.1".

2019-02-04  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config/nds32/nds32.c (nds32_legitimate_address_p): Add TLS model
        into consideration.

2019-02-04  Chung-Ju Wu  <jasonwucj@gmail.com>

        * config.gcc (with_nds32_lib, glibc):
        Remove TARGET_DEFAULT_TLSDESC_TRAMPOLINE=0 setting.
        * config/nds32/linux.h (TARGET_DEFAULT_TLSDESC_TRAMPOLINE): Delete.
        (NDS32_TLSDESC_TRAMPOLINE_SPEC): Delete.

2019-02-03  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89071
        * config/i386/i386.md (*sqrt<mode>2_sse): Add (v,0) alternative.
        Do not prefer (v,v) alternative for non-AVX targets and (m,v)
        alternative for speed when TARGET_SSE_PARTIAL_REG_DEPENDENCY is set.
        (*rcpsf2_sse): Ditto.
        (*rsqrtsf2_sse): Ditto.
        (sse4_1_round<mode<2): Ditto.

2019-02-03  Richard Biener  <rguenther@suse.de>

        PR debug/87295
        * dwarf2out.c (copy_ancestor_tree): Register non-stubs as
        orig.

2019-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/87887
        * config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
        Punt with warning on aggregate return or argument types.  Ignore
        type/mode checking for uniform arguments.

2019-02-01  Segher Boessenkool  <segher@kernel.crashing.org>

        * combine.c (try_combine): Do not print "Can't combine" messages unless
        printing failed combination attempts.

2019-02-01  Martin Jambor  <mjambor@suse.cz>

        PR hsa/87863
        * omp-grid.c (grid_mark_variable_segment): Set assembler name of group
        segment and global segment variables before making them static.

2019-02-01  Martin Jambor  <mjambor@suse.cz>

        * omp-grid.c (grid_target_follows_gridifiable_pattern): Guard two
        missed optimization dump with dump_enabled_p.

2019-02-01  Richard Biener  <rguenther@suse.de>

        PR middle-end/88597
        * tree-scalar-evolution.c (analyze_scalar_evolution): Set up
        the instantiate cache.
        (instantiate_scev_binary): Elide second operand procesing
        if equal to the first.
        * tree-chrec.c (chrec_contains_symbols): Add visited set.
        (chrec_contains_undetermined): Likewise.
        (tree_contains_chrecs): Likewise.

2019-02-01  Jan Hubicka  <hubicka@ucw.cz>

        * parms.def (MAX_INLINE_INSNS_SINGLE): Reduce from 400 to 200.

2019-02-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/89143
        * wide-int-range.h (wide_int_range_absu): Declare.
        * wide-int-range.cc (wide_int_range_absu): New function.
        * tree-vrp.c (extract_range_from_unary_expr): Handle ABSU_EXPR.

        PR tree-optimization/88107
        * tree-cfg.c (find_outermost_region_in_block): Add ALL argument,
        instead of assertion that eh_region_outermost is non-NULL, if it
        is NULL, set *ALL to true and return NULL.
        (move_sese_region_to_fn): Adjust caller, if all is set, call
        duplicate_eh_regions with NULL region.

2019-02-01  Richard Biener  <rguenth@suse.de>

        PR rtl-optimization/88593
        * mode-switching.c (optimize_mode_switching): Free dominators before
        calling cleanup_cfg.

2019-02-01  Bin Cheng  <bin.cheng@linux.alibaba.com>

        PR tree-optimization/88932
        * tree-predcom.c (try_combine_chains): Get loop bbs in dom order.

2019-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89137
        * omp-low.c (lower_omp_task_reductions): Drop redundant test to avoid
        bogus clang warning.

2019-01-31  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/89071
        * config/i386/i386.md (*extendsfdf2): Split out reg->reg
        alternative to avoid partial SSE register stall for TARGET_AVX.
        (truncdfsf2): Ditto.
        (sse4_1_round<mode>2): Ditto.

2018-01-31  Bill Schmidt  <wschmidt@linux.ibm.com>

        PR tree-optimization/89008
        * gimple-ssa-strength-reduction.c (slsr_process_mul): Don't
        process anything of the form X * 0.

2019-01-31  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89135
        * tree-ssa-phiprop.c (pass_phiprop::execute): Skip blocks
        with abnormal preds.

2019-01-31  Jakub Jelinek  <jakub@redhat.com>

        PR sanitizer/89124
        * ipa-inline.c (sanitize_attrs_match_for_inline_p): Allow inlining
        always_inline callees into no_sanitize_address callers.

2019-01-31  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/89115
        * lra.c (lra_rtx_hash): Properly hash CONST_INT values.

2019-01-30  Martin Sebor  <msebor@redhat.com>

        PR other/89106
        * doc/extend.texi (cast to a union): Correct and expand.

2019-01-30  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/87246
        * lra-constraints.c (simplify_operand_subreg): Reload memory
        in subreg if the address became invalid.

2019-01-30  Bill Schmidt  <wschmidt@linux.ibm.com>

        PR target/87064
        * config/rs6000/vsx.md (*vsx_reduc_<VEC_reduc_name>_v4sf_scalar):
        Disable for little-endian.

2019-01-30  Richard Biener  <rguenther@suse.de>

        PR rtl-optimization/89115
        * opts.c (default_options_optimization): Reduce
        PARAM_MAX_DSE_ACTIVE_LOCAL_STORES by a factor of 10 at -O1.
        Make PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP reduction relative
        to the default.

2019-01-30  Kelvin Nilsen  <kelvin@gcc.gnu.org>

        * config/rs6000/rs6000-c.c (altivec-resolve_overloaded_builtin):
        Change handling of ALTIVEC_BUILTIN_VEC_EXTRACT.  Coerce result to
        type of vector element when vec_extract is implemented by direct
        move.

2019-01-30  Thomas Schwinge  <thomas@codesourcery.com>

        * doc/invoke.texi (C Language Options): List "-fopenacc-dim".

2019-01-30  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89111
        * tree-ssa-loop-im.c (gather_mem_refs_stmt): Restrict
        canonicalization to appropriately sized access types.

2019-01-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/89105
        * config/i386/i386.c (ix86_warn_parameter_passing_abi): Don't warn
        for arguments to functions that are TU-local and shouldn't be
        referenced by assembly.

2019-01-30  Ulrich Drepper  <drepper@redhat.com>

        * dumpfile.c (opt_info_switch_p_1): Ignore '-' if it appears
        after '='.

2019-01-29  Martin Sebor  <msebor@redhat.com>

        PR c/88956
        * gimple-fold.c (fold_array_ctor_reference): Avoid zero-length arrays.

2019-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR c++/66676
        PR ipa/89104
        * omp-simd-clone.c (simd_clone_clauses_extract)
        <case OMP_CLAUSE_ALIGNED>: Ignore clauses with NULL
        OMP_CLAUSE_ALIGNED_ALIGNMENT.

2019-01-29  Vineet Gupta  <vgupta@synopsys.com>

        * config.gcc: Force .init_array for ARC.

2019-01-29  Richard Biener  <rguenther@suse.de>

        PR debug/87295
        * dwarf2out.c (collect_skeleton_dies): New helper.
        (copy_decls_for_unworthy_types): Call it.
        (build_abbrev_table): Assert we do not try to replace
        DW_AT_signature refs with local refs.

2019-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/89002
        * gimplify.c (gimplify_omp_for): When adding OMP_CLAUSE_*_GIMPLE_SEQ
        for lastprivate/linear IV, push gimplify context around gimplify_assign
        and, if it needed any temporaries, pop it into a gimple bind around the
        sequence.

2019-01-28  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * common.opt (-Wattribute-alias): Remove "no-" from name.
        Make -Wattribute-alias command line option and
        #pragma GCC diagnostic ignored "-Wattribute-alias" work again.

2019-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/89073
        * doc/invoke.texi (-mclwb, -mprfchw, -mrdpid, -mrdseed, -msgx,
        -madx, -mhle, -mavx5124fmaps, -mavx512vnni, -mavx5124vnniw): Document
        x86 ISA options.
        (bmi2): Add missing @opindex.
        * doc/extend.texi (x86 target attribute): Move fma4, lwp, ssse3
        options alphabetically.  Add missing 3dnow, 3dnowa, adx, avx, avx2,
        avx5124fmaps, avx5124vnniw, avx512bitalg, avx512bw, avx512cd,
        avx512dq, avx512er, avx512f, avx512ifma, avx512pf, avx512vbmi,
        avx512vbmi2, avx512vl, avx512vnni, avx512vpopcntdq, bmi, bmi2,
        cldemote, clflushopt, clwb, clzero, crc32, cx16, f16c, fma, fsgsbase,
        fxsr, gfni, hle, lzcnt, movbe, movdir64b, movdiri, mwaitx, pconfig,
        pku, prefetchwt1, prfchw, ptwrite, rdpid, rdrnd, rdseed, rtm, sahf,
        sgx, sha, shstk, tbm, vaes, vpclmulqdq, waitpkg, wbnoinvd, xsave,
        xsavec, xsaveopt and xsaves options.

2019-01-28  Richard Biener  <rguenther@suse.de>

        PR debug/89076
        * dwarf2out.c (gen_subprogram_die): Remove leftover from MPX
        support removal.

2019-01-28  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88739
        * tree-cfg.c (verify_types_in_gimple_reference): Verify
        BIT_FIELD_REFs only are applied to mode-precision operands
        when they are integral.
        (verify_gimple_assign_ternary): Likewise for BIT_INSERT_EXPR.
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid generating
        BIT_FIELD_REFs of non-mode-precision integral operands.

2019-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR target/87214
        * config/i386/sse.md
        (<mask_codefor>avx512dq_shuf_<shuffletype>64x2_1<mask_name>,
        avx512f_shuf_<shuffletype>64x2_1<mask_name>): Ensure the
        first constants in pairs are multiples of 2.  Formatting fixes.
        (avx512vl_shuf_<shuffletype>32x4_1<mask_name>,
        avx512vl_shuf_<shuffletype>32x4_1<mask_name>): Ensure the
        first constants in each quadruple are multiples of 4.  Formatting fixes.

2019-01-26  Martin Jambor  <mjambor@suse.cz>

        PR ipa/88933
        * tree-inline.c: Include tree-cfgcleanup.h.
        (delete_unreachable_blocks_update_callgraph): Move...
        * tree-cfgcleanup.c (delete_unreachable_blocks_update_callgraph):
        ...here, make externally visible, make second argument bool, adjust
        all callers.
        * tree-cfgcleanup.c: Include cgraph.h.
        * tree-cfgcleanup.h (delete_unreachable_blocks_update_callgraph):
        Declare.
        * ipa-prop.c: Include tree-cfgcleanup.h.
        (ipcp_transform_function): Call
        delete_unreachable_blocks_update_callgraph instead of cleaning uo CFG.

2019-01-25  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/88846
        * ira.c (process_set_for_memref_referenced_p): New.
        (memref_referenced_p): Add new param.  Use
        process_set_for_memref_referenced_p.  Add new switch cases.
        (memref_used_between_p): Pass new arg to memref_referenced_p.

2019-01-25  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * config/aarch64/aarch64.c (aarch64_function_arg_alignment): Add new
        argument ABI_BREAK.  Set to true if the calculated alignment has
        changed in gcc-9.  Check bit-fields for their base type alignment.
        (aarch64_layout_arg): Warn if argument passing has changed in gcc-9.
        (aarch64_function_arg_boundary): Likewise.
        (aarch64_gimplify_va_arg_expr): Likewise.

2019-01-25  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/89037
        * varasm.c (output_constructor_bitfield): Use wi::extract_uhwi
        instead of accessing TREE_INT_CST_ELT directly.

2019-01-25  Christophe Lyon  <christophe.lyon@linaro.org>

        * doc/sourcebuild.texi (Environment attributes): Add fenv and
        fenv_exceptions description.

2019-01-25  Wilco Dijkstra  <wdijkstr@arm.com>

        PR rtl-optimization/87763
        * config/aarch64/aarch64.c (aarch64_select_cc_mode):
        Allow SUBREG when matching CC_NZmode compare.

2019-01-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89049
        * tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
        Look at the pattern stmt to determine if the stmt is vectorized.

2019-01-25  Richard Sandiford  <richard.sandiford@arm.com>

        * config/aarch64/aarch64-sve.md (*pred_mov<mode>)
        (pred_mov<mode>): Handle all-register forms using both a new
        alternative and a split.

2019-01-25  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/86865
        * graphite-scop-detection.c (scop_detection::can_represent_loop):
        Reject non-do-while loops.

2019-01-24  Peter Bergner  <bergner@linux.ibm.com>

        * config/rs6000/altivec.md (build_vector_mask_for_load): Use MEM_P.
        * config/rs6000/constraints.md (Q constraint): Use REG_P.
        * config/rs6000/darwin.h (PREFERRED_RELOAD_CLASS): Use SYMBOL_REF_P.
        * config/rs6000/freebsd64.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Use
        SYMBOL_REF_P, CONST_INT_P and CONST_DOUBLE_P.
        * config/rs6000/linux64.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        * config/rs6000/predicates.md (altivec_register_operand, vint_operand,
        vsx_register_operand, vsx_reg_sfsubreg_ok, vfloat_operand,
        vlogical_operand, gpc_reg_operand, int_reg_operand,
        int_reg_operand_not_pseudo): Use SUBREG_P and HARD_REGISTER_P.
        (ca_operand, base_reg_operand, htm_spr_reg_operand, cc_reg_operand,
        cc_reg_not_cr0_operand, input_operand): Use SUBREG_P.
        (save_world_operation, restore_world_operation, lmw_operation,
        stmw_operation): Use MEM_P and REG_P.
        (tie_operand): Use MEM_P.
        (vrsave_operation, crsave_operation): Use REG_P.
        (mfcr_operation, mtcrf_operation): Use REG_P and CONST_INT_P.
        (fpr_reg_operand): Use SUBREG_P and HARD_REGISTER_NUM_P.
        (quad_int_reg_operand): Use HARD_REGISTER_NUM_P.
        (call_operand): Use HARD_REGISTER_P.
        (indexed_or_indirect_operand, altivec_indexed_or_indirect_operand):
        Use CONST_INT_P.
        (lwa_operand): Use SUBREG_P, REG_P and CONST_INT_P.
        * config/rs6000/rs6000-p8swap.c (insn_is_load_p, insn_is_store_p,
        quad_aligned_load_p, replace_swapped_aligned_store,
        recombine_lvx_pattern, replace_swapped_aligned_load,
        recombine_stvx_pattern): Use MEM_P.
        (const_load_sequence_p, adjust_vperm, replace_swapped_load_constant):
        Use MEM_P and SYMBOL_REF_P.
        (rtx_is_swappable_p): Use REG_P and CONST_INT_P.
        (insn_is_swappable_p): Use REG_P and MEM_P.
        (insn_is_swap_p, (alignment_mask): Use CONST_INT_P.
        * config/rs6000/rs6000-string.c (expand_block_clear, expand_block_move):
        Use CONST_INT_P.
        * config/rs6000/rs6000.c (rs6000_secondary_reload, rs6000_emit_cmove):
        Use CONST_DOUBLE_P.
        (rs6000_output_move_128bit): Use CONST_DOUBLE_P, CONST_INT_P and
        CONST_WIDE_INT_P.
        (rs6000_legitimize_address): Use CONST_DOUBLE_P, CONST_INT_P,
        CONST_WIDE_INT_P, REG_P and SYMBOL_REF_P.
        (rs6000_emit_move): Use CONST_DOUBLE_P, CONST_INT_P, HARD_REGISTER_P,
        HARD_REGISTER_NUM_P, MEM_P, REG_P, SUBREG_P, SYMBOL_REF_P and
        reg_or_subregno:
        (output_toc): Use CONST_DOUBLE_P, CONST_INT_P and SYMBOL_REF_P.
        (easy_altivec_constant, rs6000_legitimate_offset_address_p,
        rs6000_mode_dependent_address, rs6000_expand_mtfsf_builtin,
        rs6000_expand_set_fpscr_rn_builtin, rs6000_expand_set_fpscr_drn_builtin,
        rs6000_expand_unop_builtin, INT_P, rs6000_generate_compare,
        rs6000_machopic_legitimize_pic_address, rs6000_split_logical_inner,
        rs6000_split_logical_di): Use CONST_INT_P.
        (rs6000_legitimize_reload_address): Use CONST_INT_P, HARD_REGISTER_P,
        REG_P and SYMBOL_REF_P.
        (setup_incoming_varargs, rs6000_rtx_costs): Use CONST_INT_P and MEM_P.
        (print_operand): Use CONST_INT_P, MEM_P and REG_P.
        (virtual_stack_registers_memory_p, rs6000_legitimate_address_p,
        mems_ok_for_quad_peep): Use CONST_INT_P and REG_P.
        (rs6000_secondary_reload_memory): Use CONST_INT_P and SUBREG_P.
        (small_data_operand, print_operand_address): Use CONST_INT_P and
        SYMBOL_REF_P.
        (split_stack_arg_pointer_used_p): Use HARD_REGISTER_P.
        (rs6000_init_hard_regno_mode_ok, direct_move_p):
        Use HARD_REGISTER_NUM_P.
        (rs6000_secondary_reload_gpr): Use HARD_REGISTER_NUM_P and MEM_P.
        (rs6000_secondary_reload_class): Use HARD_REGISTER_NUM_P, REG_P,
        SUBREG_P and SYMBOL_REF_P.
        (register_to_reg_type, rs6000_secondary_reload_inner): Use SUBREG_P
        and HARD_REGISTER_NUM_P.
        (rs6000_adjust_vec_address): Use HARD_REGISTER_NUM_P and
        reg_or_subregno.
        (rs6000_adjust_cost, find_mem_ref): Use MEM_P.
        (macho_lo_sum_memory_operand, rs6000_eliminate_indexed_memrefs): Use
        MEM_P and REG_P.
        (legitimate_indirect_address_p, legitimate_lo_sum_address_p,
        registers_ok_for_quad_peep, rs6000_output_function_epilogue,
        find_addr_reg): Use REG_P.
        (altivec_expand_vec_perm_const): Use REG_P and SUBREG_P.
        (rs6000_emit_le_vsx_move): Use SUBREG_P.
        (offsettable_ok_by_alignment, constant_pool_expr_p,
        legitimate_small_data_p, rs6000_output_dwarf_dtprel,
        rs6000_delegitimize_address, rs6000_const_not_ok_for_debug_p,
        rs6000_cannot_force_const_mem, rs6000_output_addr_const_extra,
        rs6000_assemble_integer, create_TOC_reference,
        rs6000_emit_allocate_stack, rs6000_xcoff_encode_section_info,
        rs6000_call_aix, rs6000_call_aix): Use SYMBOL_REF_P.
        (rs6000_split_vec_extract_var): Use reg_or_subregno.
        * config/rs6000/rtems.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Use
        CONST_DOUBLE_P, CONST_INT_P and SYMBOL_REF_P.
        * config/rs6000/sysv4.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        * config/rs6000/xcoff.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Likewise.
        * config/rs6000/rs6000.h (RS6000_SYMBOL_REF_TLS_P): Use SYMBOL_REF_P.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Use HARD_REGISTER_NUM_P.
        (INT_REG_OK_FOR_INDEX_P, INT_REG_OK_FOR_BASE_P): Use HARD_REGISTER_P.
        (CONSTANT_ADDRESS_P): Use CONST_INT_P and SYMBOL_REF_P.
        * config/rs6000/rs6000.md (define_expands strlensi, mod<mode>3
        and cbranch<mode>4): Use CONST_INT_P.
        (multiple define_splits): Use REG_P and SUBREG_P.
        (define_expands call, call_value): Use MEM_P.
        (define_expands sibcall, sibcall_value): Use CONST_INT_P and  MEM_P.
        (define insn *mtcrfsi): Use CONST_INT_P and REG_P.
        * config/rs6000/vsx.md (*vsx_le_perm_load_<mode>,
        *vsx_le_perm_load_v8hi, *vsx_le_perm_load_v16qi): Use HARD_REGISTER_P
        and HARD_REGISTER_NUM_P.
        (multiple define_splits): Use HARD_REGISTER_NUM_P.

2019-01-24  Uroš Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/88948
        * rtl.h (prepare_copy_insn): New prototype.
        * gcse.c (prepare_copy_insn): New function, split out from
        process_insert_insn.
        (process_insert_insn): Use prepare_copy_insn.
        * store-motion.c (replace_store_insn): Use prepare_copy_insn
        instead of gen_move_insn.

2019-01-24  Jakub Jelinek  <jakub@redhat.com>

        PR debug/89006
        * config/i386/i386.c (ix86_pic_register_p): Return true for
        UNSPEC_SET_GOT too.

        PR tree-optimization/88964
        * gimple-loop-interchange.cc (loop_cand::analyze_induction_var): Also
        punt if HONOR_SNANS (chrec).

        PR middle-end/89015
        * tree-nested.c (convert_nonlocal_reference_stmt,
        convert_local_reference_stmt, convert_tramp_reference_stmt,
        convert_gimple_call) <case GIMPLE_OMP_TEAMS>: Treat
        gimple_omp_teams_host teams stmts like GIMPLE_OMP_PARALLEL
        or GIMPLE_OMP_TASK.

        PR tree-optimization/89027
        * tree-inline.c (add_clobbers_to_eh_landing_pad): Don't add clobbers
        for "omp simd array" variables.

2019-01-24  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * profile-count.h (profile_count): On ARM systems using GCC 6/7/8
        force the alignment of m_val.

2019-01-24  Richard Biener  <rguenther@suse.de>

        PR lto/87187
        * tree-streamer-out.c (write_ts_decl_common_tree_pointers):
        When in "legacy" debug mode make sure to reset self-origins.

2019-01-24  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/88994
        * gcov-io.c (mangle_path): Do not allocate a bigger buffer,
        result will be always smaller or equal to the original.
        * gcov.c (mangle_name): Fix else branch where we should
        also copy to PTR and shift the pointer.

2019-01-24  Xiong Hu Luo  <luoxhu@linux.vnet.ibm.com>

        * tree-ssa-dom.c (test_for_singularity): Fix a comment typo.
        * vr-values.c (find_case_label_ranges): Fix a comment typo.

2019-01-23  Bin Cheng  <bin.cheng@arm.com>
            Steve Ellcey <sellcey@marvell.com>

        PR target/85711
        * recog.c (address_operand): Return false on wrong mode for address.
        (constrain_operands): Check for mode with 'p' constraint.

2019-01-23  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/88998
        * config/i386/sse.md (sse2_cvtpi2pd): Add SSE alternatives.
        Disparage MMX alternative.
        (sse2_cvtpd2pi): Ditto.
        (sse2_cvttpd2pi): Ditto.

2019-01-23  David Malcolm  <dmalcolm@redhat.com>

        PR driver/89014
        * config/aarch64/driver-aarch64.c (host_detect_local_cpu): Fix
        use-after-free of the result of
        aarch64_get_extension_string_for_isa_flags.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR c/44715
        * doc/extend.texi: Document break and continue behavior in
        statement expressions.

2019-01-23  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89008
        * tree-ssa-reassoc.c (eliminate_using_constants): For * 0 do
        not leave another stray operand.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Bump to 9.0.1.

2019-01-23  Eric Botcazou  <ebotcazou@adacore.com>

        * cgraphunit.c (cgraph_node::expand_thunk): When expanding a GIMPLE
        thunk that returns by reference, use the type of the return object
        of the thunk instead of that of the alias to build the dereference.

2019-01-23  Vineet Gupta  <vgupta@synopsys.com>

        * config/arc/atomic.md: Add operand to DMB instruction.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88964
        * gimple-loop-interchange.cc (loop_cand::analyze_induction_var): Use
        build_zero_cst instead of build_int_cst.  Return false for loop
        invariants which honor signed zeros.

2019-01-22  Segher Boessenkool  <segher@kernel.crashing.org>

        * doc/invoke.texi (-fsplit-paths): This is enabled by default at -O3.

2019-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR target/88965
        * config/rs6000/rs6000.c: Include tree-vrp.h and tree-ssanames.h.
        (rs6000_gimple_fold_builtin): If MEM_REF address doesn't satisfy
        is_gimple_mem_ref_addr predicate, force it into a SSA_NAME first.

        PR middle-end/88968
        * gimplify.c (gimplify_omp_atomic): Handle bitfield atomics with
        non-integral DECL_BIT_FIELD_REPRESENTATIVEs.

        PR target/87064
        * config/rs6000/vsx.md (*vsx_reduc_<VEC_reduc_name>_v2df_scalar):
        Disable for little endian.

2019-01-22  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * config/arm/arm.c (arm_needs_double_word_align): Check
        DECL_BIT_FIELD_TYPE.

2019-01-22  Hongtao Liu  <hongtao.liu@intel.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88909
        * config/i386/i386-builtin.def: Add mask2 to all builtin
        initializations.  Merge ARGS2 and SPECIAL_ARGS2 into ARGS and
        SPECIAL_ARGS.
        * config/i386/i386.c (BDESC): Add mask2 to the definition.
        (BDESC_FIRST): Likewise.
        (define_builtin): Add an argument for mask2.  Updated to handle
        both ix86_isa_flags and ix86_isa_flags2.
        (define_builtin_const): Likewise.
        (define_builtin_pure): Likewise.
        (define_builtin2): Deleted.
        (define_builtin_const2): Likewise.
        (builtin_description): Add a member, mask2.
        (bdesc_*): Add mask2 to builtin initializations.
        (ix86_init_mmx_sse_builtins): Update calls to def_builtin,
        def_builtin_const and def_builtin_pure.  Remove SPECIAL_ARGS2
        support.
        (ix86_get_builtin_func_type): Remove SPECIAL_ARGS2 support.

2019-01-22  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88954
        * config/i386/i386.c (ix86_force_load_from_GOT_p): Also check
        noplt attribute.

2019-01-22  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88469
        * config/arm/arm.c (arm_needs_doubleword_align): Return 2 if a record's
        alignment is dominated by a bitfield with 64-bit aligned base type.
        (arm_function_arg): Emit a warning if the alignment has changed since
        earlier GCC releases.
        (arm_function_arg_boundary): Likewise.
        (arm_setup_incoming_varargs): Likewise.

2019-01-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88862
        * graphite-scop-detection.c
        (scop_detection::graphite_can_represent_scev): Reject ADDR_EXPR.

2019-01-22  Andrew Stubbs  <ams@codesourcery.com>

        * doc/extend.tex (AMD GCN Function Attributes): New section.
        * doc/install.texi (amdgcn-unknown-amdhsa): New instructions.
        * doc/invoke.texi (AMD GCN Options): New section.
        * doc/md.texi (Constraints for Particular Machines): Add AMD GCN.

2019-01-22  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (parc_delegitimize_address): Recognize the GOT
        register and decoded HIGH/LO_SUM combinations for labels in PIC mode.

2019-01-22  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88044
        * tree-ssa-loop-niter.c (number_of_iterations_cond): If condition
        is false in the first iteration, but !every_iteration, return false
        instead of true with niter->niter zero.

        PR rtl-optimization/88904
        * cfgcleanup.c (thread_jump): Verify cond2 doesn't mention
        any nonequal registers before processing BB_END (b).

        PR target/88905
        * optabs.c (add_equal_note): Add op0_mode argument, use it instead of
        GET_MODE (op0).
        (expand_binop_directly, expand_doubleword_clz,
        expand_doubleword_popcount, expand_ctz, expand_ffs,
        expand_unop_direct, maybe_emit_unop_insn): Adjust callers.

        PR rtl-optimization/49429
        PR target/49454
        PR rtl-optimization/86334
        PR target/88906
        * expr.c (emit_block_move_hints): Move marking of MEM_EXPRs
        addressable from here...
        (emit_block_op_via_libcall): ... to here.

2019-01-22  Richard Biener  <rguenther@suse.de>

        * tree-vect-loop.c (vect_analyze_loop_operations): Use
        auto_vec for cost vector to fix memleak.
        (vectorize_fold_left_reduction): Properly gather SLP defs.
        (vectorizable_comparison): Do not swap operands to properly
        gather SLP defs.

2019-01-22  Alan Modra  <amodra@gmail.com>

        PR target/88614
        * config/rs6000/predicates.md (unspec_tls): Ensure GOT reg
        stays a reg.  Allow a const_int.
        * config/rs6000/rs6000-protos.h (rs6000_output_tlsargs): Declare.
        * config/rs6000/rs6000.h (IS_V4_FP_ARGS): Define.
        (IS_NOMARK_TLSGETADDR): Define.
        * config/rs6000/rs6000.c (edit_tls_call_insn): Delete.
        (rs6000_output_tlsargs): New function.
        (rs6000_legitimize_tls_address): Don't say a !TARGET_TLS_MARKERS
        __tls_get_addr call takes an arg.
        (rs6000_call_sysv): Generate sysv4 secure plt call pattern here..
        * config/rs6000/rs6000.md (call_nonlocal_sysv): ..rather than here,
        delete split..
        (call_value_nonlocal_sysv): ..or here, delete split.
        (tls_gdld_nomark): Delete.
        (call_value_indirect_nonlocal_sysv): Use unspec_tls as operand2
        predicate.  Call rs6000_output_tlsargs.  Adjust length to suit.
        (call_value_nonlocal_sysv): Likewise.
        (call_value_nonlocal_sysv_secure): Likewise.
        (call_value_nonlocal_aix): Likewise.
        (call_value_indirect_aix): Likewise.
        (call_value_indirect_elfv2): Likewise.
        (call_value_local32, call_value_local64): Disable for no-mark tls.
        (call_value_local_aix): Likewise.

2019-01-21  Uroš Bizjak  <ubizjak@gmail.com>

        PR target/88938
        * config/i386/i386.c (ix86_expand_builtin) [case IX86_BUILTIN_BEXTRI32,
        case IX86_BUILTIN_BEXTRI64]: Sanitize operands.

2019-01-21  Michael Ploujnikov  <michael.ploujnikov@oracle.com>

        * hash-map-tests.c (test_map_of_strings_to_int): Show how to use
        string contents as hash_map keys.

2019-01-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c/88928
        * c-warn.c (check_alignment_of_packed_member): Add a boolean parameter
        for rvalue context.  Handle rvalues correctly.  Use min_align_of_type
        instead of TYPE_ALIGN.
        (check_address_or_pointer_of_packed_member): Handle rvalues coorrectly.
        Use min_align_of_type instead of TYPE_ALIGN_UNIT.  Check for NULL
        pointer from TYPE_STUB_DECL.

2019-01-21  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88934
        * tree-vect-slp.c (vect_mask_constant_operand_p): Always look
        at the possibly non-constant operand.
        (vect_get_constant_vectors): Adjust.

2019-01-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/71659
        * config/i386/adxintrin.h: Just check _IMMINTRIN_H_INCLUDED.
        * config/i386/clflushoptintrin.h: Check _IMMINTRIN_H_INCLUDED
        instead of _X86INTRIN_H_INCLUDED.
        * onfig/i386/clwbintrin.h: Likewise.
        * config/i386/pkuintrin.h: Likewise.
        * config/i386/prfchwintrin.h: Likewise.
        * config/i386/rdseedintrin.h: Likewise.
        * config/i386/wbnoinvdintrin.h: Likewise.
        * config/i386/xsavecintrin.h: Likewise.
        * config/i386/xsavesintrin.h: Likewise.
        * config/i386/fxsrintrin.h: Enable _IMMINTRIN_H_INCLUDED check.
        * config/i386/xsaveintrin.h: Likewise.
        * config/i386/xsaveoptintrin.h: Likewise.
        * config/i386/x86intrin.h: Move "#include" <rdseedintrin.h>,
        <prfchwintrin.h>, <fxsrintrin.h>, <xsaveintrin.h>,
        <xsaveoptintrin.h>, <adxintrin.h>, <clwbintrin.h>,
        <clflushoptintrin.h>, <xsavesintrin.h>, <xsavecintrin.h>,
        <wbnoinvdintrin.h> and <pkuintrin.h> to ...
        * config/i386/immintrin.h: Here.

2019-01-20  Martin Jambor  <mjambor@suse.cz>

        PR ipa/87615
        * ipa-prop.h (struct ipa_func_body_info): Replaced field aa_walked
        with aa_walk_budget.
        * cgraph.h (ipa_polymorphic_call_context::get_dynamic_type): Add
        aa_walk_budget_p parameter.
        * ipa-fnsummary.c (unmodified_parm_1): New parameter fbi.  Limit AA
        walk.  Updated all callers.
        (unmodified_parm): New parameter fbi, pass it to unmodified_parm_1.
        (eliminated_by_inlining_prob): New parameter fbi, pass it on to
        unmodified_parm.
        (will_be_nonconstant_expr_predicate): New parameter fbi, removed
        parameter info.  Extract info from fbi.  Pass fbi to recursive calls
        and to unmodified_parm.
        (phi_result_unknown_predicate): New parameter fbi, removed parameter
        info, updated call to will_be_nonconstant_expr_predicate.
        (param_change_prob): New parameter fbi, limit AA walking.
        (analyze_function_body): Initialize aa_walk_budget in fbi.  Update
        calls to various above functions.
        * ipa-polymorphic-call.c (get_dynamic_type): Add aa_walk_budget_p
        parameter.  Use it to limit AA walking.
        * ipa-prop.c (detect_type_change_from_memory_writes): New parameter
        fbi, limit AA walk.
        (detect_type_change): New parameter fbi, pass it on to
        detect_type_change_from_memory_writes.
        (detect_type_change_ssa): Likewise.
        (aa_overwalked): Removed.
        (parm_preserved_before_stmt_p): Assume fbi is never NULL, stream line
        accordingly, adjust to the neew AA limiting scheme.
        (parm_ref_data_preserved_p): Likewise.
        (ipa_compute_jump_functions_for_edge): Adjust call to
        get_dynamic_type.
        (ipa_analyze_call_uses): Likewise.
        (ipa_analyze_virtual_call_uses): Pass fbi to detect_type_change_ssa.
        (ipa_analyze_node): Initialize aa_walk_budget.
        (ipcp_transform_function): Likewise.
        * tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Update call
        to get_dynamic_type.

2019-01-19  Jakub Jelinek  <jakub@redhat.com>

        * config/aarch64/aarch64.c (aarch64_stack_protect_guard): Move
        outside of #if CHECKING_P code.

2019-01-19  Richard Sandiford  <richard.sandiford@arm.com>

        * gimple-loop-versioning.cc (loop_versioning::dump_inner_likelihood):
        New function, split out from...
        (loop_versioning::analyze_stride): ...here.
        (loop_versioning::find_per_loop_multiplication): Use gassign.
        (loop_versioning::analyze_term_using_scevs): Return a success code.
        (loop_versioning::analyze_arbitrary_term): New function.
        (loop_versioning::analyze_address_fragment): Use
        analyze_arbitrary_term if all else fails.

2019-01-18  Segher Boessenkool  <segher@kernel.crashing.org>

        PR target/88892
        * config/rs6000/rs6000.md (*movsi_from_df): Allow only register
        operands.

2019-01-18  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88903
        * tree-vect-stmts.c (vectorizable_shift): Verify we see all
        scalar stmts a SLP shift amount is composed of when detecting
        shifts by scalars.

2019-01-18  Richard Earnshaw  <rearnsha@arm.com>

        PR target/88799
        * config/arm/arm-cpus.in (mp): New feature.
        (sec): New feature.
        (fgroup ARMv7ve): Add mp and sec features.
        (arch armv7-a): Add options to allow mp and sec extensions.
        (cpu generic-armv7-a): Add options to allow mp and sec extensions.
        (cpu cortex-a5, cpu cortex-7, cpu cortex-a9): Add mp and sec
        extenstions to the base architecture.
        (cpu cortex-a8): Add sec extension to the base architecture.
        (cpu marvell-pj4): Add mp and sec extensions to the base architecture.
        * config/arm/t-aprofile (MULTILIB_MATCHES): Map all armv7-a arch
        variants down to the base v7-a varaint.
        * config/arm/t-multilib (v7_a_arch_variants): New variable.
        * doc/invoke.texi (ARM Options): Add +mp and +sec to the list
        of permitted extensions for -march=armv7-a and for
        -mcpu=generic-armv7-a.

2019-01-18  Martin Liska  <mliska@suse.cz>

        * params.def: Fix comment.
        * tree-profile.c (gimple_init_gcov_profiler): Bump function
        name.
        (gimple_gen_ic_func_profiler): Likewise.

2019-01-18  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/aarch64/aarch64-opts.h (enum stack_protector_guard): New
        * config/aarch64/aarch64.c (aarch64_override_options_internal): Handle
        and put in error checks for stack protector guard options.
        (aarch64_stack_protect_guard): New.
        (TARGET_STACK_PROTECT_GUARD): Define.
        * config/aarch64/aarch64.md (UNSPEC_SSP_SYSREG): New.
        (reg_stack_protect_address<mode>): New.
        (stack_protect_set): Adjust for SSP_GLOBAL.
        (stack_protect_test): Likewise.
        * config/aarch64/aarch64.opt (-mstack-protector-guard-reg): New.
        (-mstack-protector-guard): Likewise.
        (-mstack-protector-guard-offset): Likewise.

2019-01-18  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/86214
        * tree-inline.h (struct copy_body_data): Add
        add_clobbers_to_eh_landing_pads member.
        * tree-inline.c (add_clobbers_to_eh_landing_pad): New function.
        (copy_edges_for_bb): Call it if EH edge destination is <
        id->add_clobbers_to_eh_landing_pads.  Fix a comment typo.
        (expand_call_inline): Set id->add_clobbers_to_eh_landing_pads
        if flag_stack_reuse != SR_NONE and clear it afterwards.

2019-01-18  Christophe Lyon  <christophe.lyon@linaro.org>

        PR target/85596
        * doc/install.texi (with-multilib-list): Document for aarch64.

2019-01-18  Jakub Jelinek  <jakub@redhat.com>

        PR target/88734
        * config/arm/arm_neon.h: Fix #pragma GCC target syntax - replace
        (("..."))) with ("...").

2019-01-18  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * doc/extend.texi (Built-in Functions for Memory Model Aware
        Atomic Operations): Document atomic fetch and nand.

2019-01-18  Martin Liska  <mliska@suse.cz>
            Richard Biener  <rguenther@suse.de>

        PR middle-end/88587
        * cgraph.h (create_version_clone_with_body): Add new argument
        with attributes.
        * cgraphclones.c (cgraph_node::create_version_clone): Add
        DECL_ATTRIBUTES to a newly created decl.  And call
        valid_attribute_p so that proper cl_target_optimization_node
        is set for the newly created declaration.
        * multiple_target.c (create_target_clone): Set DECL_ATTRIBUTES
        for declaration.
        (expand_target_clones): Do not call valid_attribute_p, it must
        be already done.
        * tree-inline.c (copy_decl_for_dup_finish): Reset mode for
        vector types.

2019-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR target/88734
        * config/aarch64/arm_neon.h: Fix #pragma GCC target syntax - replace
        (("..."))) with ("...").  Use arch=armv8.2-a+sha3 instead of
        arch=armv8.2-a+crypto for vsha512hq_u64 etc. intrinsics.

2019-01-17  Martin Sebor  <msebor@redhat.com>

        PR middle-end/88273
        * gimple-ssa-warn-restrict.c (builtin_memref::extend_offset_range):
        Handle anti-ranges the same as no range at all.

2018-01-17  Steve Ellcey  <sellcey@cavium.com>

        * config/aarch64/aarch64.c (cgraph.h): New include.
        (intl.h): New include.
        (supported_simd_type): New function.
        (currently_supported_simd_type): Ditto.
        (aarch64_simd_clone_compute_vecsize_and_simdlen): Ditto.
        (aarch64_simd_clone_adjust): Ditto.
        (aarch64_simd_clone_usable): Ditto.
        (TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN): New macro.
        (TARGET_SIMD_CLONE_ADJUST): Ditto.
        (TARGET_SIMD_CLONE_USABLE): Ditto.
        * config/i386/i386.c (ix86_simd_clone_adjust): Add definition check.
        * omp-simd-clone.c (expand_simd_clones): Add targetm.simd_clone.adjust
        call.

2019-01-17  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88800
        * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid checking
        NO_WARNING bit here.  Avoid folding out-of-bounds calls.
        * gimple-ssa-warn-restrict.c (maybe_diag_offset_bounds): Remove
        redundant argument.  Add new argument and issue diagnostics under
        its control.  Detect out-of-bounds access even with warnings
        disabled.
        (check_bounds_or_overlap): Change return type.  Add argument.
        (wrestrict_dom_walker::check_call): Adjust.
        * gimple-ssa-warn-restrict.h (check_bounds_or_overlap): Add argument.
        * tree-ssa-strlen.c (handle_builtin_strcpy): Adjust to change in
        check_bounds_or_overlap's return value.
        (handle_builtin_stxncpy): Same.
        (handle_builtin_strcat): Same.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi: Document dg-add-options sqrt_insn.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>

        * doc/sourcebuild.texi: Document dg-require-effective-target
        llvm_binutils and offload_gcn.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>

        * doc/sourcebuild.texi: Document dg-required-effective-target
        exceptions.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>
            Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        * config.gcc: Add amdgcn*-*-amdhsa configuration.
        * configure.ac: Check for dlopen.
        * configure: Regenerate.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>
            Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        * common/config/gcn/gcn-common.c: New file.
        * config/gcn/driver-gcn.c: New file.
        * config/gcn/gcn-builtins.def: New file.
        * config/gcn/gcn-hsa.h: New file.
        * config/gcn/gcn-modes.def: New file.
        * config/gcn/gcn-opts.h: New file.
        * config/gcn/gcn-passes.def: New file.
        * config/gcn/gcn-protos.h: New file.
        * config/gcn/gcn-run.c: New file.
        * config/gcn/gcn-tree.c: New file.
        * config/gcn/gcn.c: New file.
        * config/gcn/gcn.h: New file.
        * config/gcn/gcn.opt: New file.
        * config/gcn/t-gcn-hsa: New file.

2019-01-17  Andrew Stubbs  <ams@codesourcery.com>
            Kwok Cheung Yeung  <kcy@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tom de Vries  <tom@codesourcery.com>
            Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        * config/gcn/constraints.md: New file.
        * config/gcn/gcn-valu.md: New file.
        * config/gcn/gcn.md: New file.
        * config/gcn/predicates.md: New file.

2019-01-17  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-ssa-isolate-paths.c (stmt_uses_name_in_undefined_way): Replace
        flag_non_call_exceptions with cfun->can_throw_non_call_exceptions.
        (stmt_uses_0_or_null_in_undefined_way): Likewise.
        * tree-ssa-alias.c (same_addr_size_stores_p): Likewise.

2019-01-17  Tamar Christina  <tamar.christina@arm.com>

        PR target/88851
        * config/aarch64/aarch64.md (STACK_CLASH_SVE_CFA_REGNUM): New.
        * config/aarch64/aarch64.c (aarch64_allocate_and_probe_stack_space): Use
        it and document registers.

2019-01-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/aarch64/aarch64.c (ares_tunings): Define.
        * config/aarch64/aarch64-cores.def (ares): Use the above.

2019-01-17  Wei Xiao  <wei3.xiao@intel.com>

        PR target/88794
        Revert:
        2018-11-06  Wei Xiao  <wei3.xiao@intel.com>

        * config/i386/avx512fintrin.h: Update VFIXUPIMM* intrinsics.
        (_mm512_fixupimm_round_pd): Update parameters and builtin.
        (_mm512_maskz_fixupimm_round_pd): Ditto.
        (_mm512_fixupimm_round_ps): Ditto.
        (_mm512_maskz_fixupimm_round_ps): Ditto.
        (_mm_fixupimm_round_sd): Ditto.
        (_mm_maskz_fixupimm_round_sd): Ditto.
        (_mm_fixupimm_round_ss): Ditto.
        (_mm_maskz_fixupimm_round_ss): Ditto.
        (_mm512_fixupimm_pd): Ditto.
        (_mm512_maskz_fixupimm_pd): Ditto.
        (_mm512_fixupimm_ps): Ditto.
        (_mm512_maskz_fixupimm_ps): Ditto.
        (_mm_fixupimm_sd): Ditto.
        (_mm_maskz_fixupimm_sd): Ditto.
        (_mm_fixupimm_ss): Ditto.
        (_mm_maskz_fixupimm_ss): Ditto.
        (_mm512_mask_fixupimm_round_pd): Update builtin.
        (_mm512_mask_fixupimm_round_ps): Ditto.
        (_mm_mask_fixupimm_round_sd): Ditto.
        (_mm_mask_fixupimm_round_ss): Ditto.
        (_mm512_mask_fixupimm_pd): Ditto.
        (_mm512_mask_fixupimm_ps): Ditto.
        (_mm_mask_fixupimm_sd): Ditto.
        (_mm_mask_fixupimm_ss): Ditto.
        * config/i386/avx512vlintrin.h:
        (_mm256_fixupimm_pd): Update parameters and builtin.
        (_mm256_maskz_fixupimm_pd): Ditto.
        (_mm256_fixupimm_ps): Ditto.
        (_mm256_maskz_fixupimm_ps): Ditto.
        (_mm_fixupimm_pd): Ditto.
        (_mm_maskz_fixupimm_pd): Ditto.
        (_mm_fixupimm_ps): Ditto.
        (_mm_maskz_fixupimm_ps): Ditto.
        (_mm256_mask_fixupimm_pd): Update builtin.
        (_mm256_mask_fixupimm_ps): Ditto.
        (_mm_mask_fixupimm_pd): Ditto.
        (_mm_mask_fixupimm_ps): Ditto.
        * config/i386/i386-builtin-types.def: Add new types and remove useless ones.
        * config/i386/i386-builtin.def: Update builtin definitions.
        * config/i386/i386.c: Handle new builtin types and remove useless ones.
        * config/i386/sse.md: Update VFIXUPIMM* patterns.
        (<avx512>_fixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (<avx512>_fixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (<avx512>_fixupimm<mode>_mask<round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Update.
        * config/i386/subst.md:
        (round_saeonly_sd_mask_operand4): Add new subst_attr.
        (round_saeonly_sd_mask_op4): Ditto.
        (round_saeonly_expand_operand5): Ditto.
        (round_saeonly_expand): Update.

2019-01-17  Wei Xiao  <wei3.xiao@intel.com>

        PR target/88794
        Revert:
        2018-11-12  Wei Xiao  <wei3.xiao@intel.com>

        * config/i386/sse.md: Combine VFIXUPIMM* patterns
        (<avx512>_fixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (<avx512>_fixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (<avx512>_fixupimm<mode>_mask<round_saeonly_name>): Remove.
        (avx512f_sfixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Remove.

2019-01-17  Wei Xiao  <wei3.xiao@intel.com>

        PR target/88794
        Revert:
        2018-12-15  Jakub Jelinek  <jakub@redhat.com>

        PR target/88489
        * config/i386/sse.md (UNSPEC_SFIXUPIMM): New unspec enumerator.
        (avx512f_sfixupimm<mode><mask_name><round_saeonly_name>): Use it
        instead of UNSPEC_FIXUPIMM.

2019-01-17  Richard Biener  <rguenther@suse.de>

        PR lto/86736
        * dwarf2out.c (want_pubnames): Never generate pubnames sections
        and friends for the LTO part of debug info.

2019-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/86214
        * cfgexpand.c (add_stack_var_conflict): Don't add any conflicts
        if x == y.

        PR rtl-optimization/88870
        * dce.c (deletable_insn_p): Never delete const/pure calls that can
        throw if we can't alter the cfg or delete dead exceptions.
        (mark_insn): Don't call find_call_stack_args for such calls.

2019-01-17  Kewen Lin  <linkw@gcc.gnu.org>

        * doc/extend.texi: Add four new prototypes for vec_ld and seven new
        prototypes for vec_st.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add entries
        for scalar address type variants of altivec_vec_ld/altivec_vec_st,
        mainly on signed/unsigned long long and double.

2019-01-16  David Malcolm  <dmalcolm@redhat.com>

        PR target/88861
        * combine.c (delete_noop_moves): Convert to "bool" return,
        returning true if any edges are eliminated.
        (combine_instructions): Also return true if delete_noop_moves
        returns true.

2019-01-16  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
        correct max nunits for endian swap.
        (aarch64_expand_fcmla_builtin): Correct subreg code.
        * config/aarch64/aarch64-simd.md (aarch64_fcmla_lane<rot><mode>,
        aarch64_fcmla_laneq<rot>v4hf, aarch64_fcmlaq_lane<rot><mode>): Correct
        lane endianness.

2019-01-16  Uroš Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (alpha_gimplify_va_arg):
        Handle split indirect COMPLEX_TYPE arguments.

2019-01-16  Richard Earnshaw  <rearnsha@arm.com>

        PR target/86891
        * config/aarch64/aarch64-modes.def: Add comment about how the carry
        bit is set by add and compare.
        (CC_ADC): New CC_MODE.
        * config/aarch64/aarch64.c (aarch64_select_cc_mode): Use variables
        to cache the code and mode of X.  Adjust the shape of a CC_Cmode
        comparison.  Add detection for CC_ADCmode.
        (aarch64_get_condition_code_1): Update code support for CC_Cmode.  Add
        CC_ADCmode.
        * config/aarch64/aarch64.md (uaddv<mode>4): Use LTU with CCmode.
        (uaddvti4): Comparison result is in CC_ADCmode and the condition is GEU.
        (add<mode>3_compareC_cconly_imm): Delete.  Merge into...
        (add<mode>3_compareC_cconly): ... this.  Restructure the comparison
        to eliminate the need for zero-extending the operands.
        (add<mode>3_compareC_imm): Delete.  Merge into ...
        (add<mode>3_compareC): ... this.  Restructure the comparison to
        eliminate the need for zero-extending the operands.
        (add<mode>3_carryin): Use LTU for the overflow detection.
        (add<mode>3_carryinC): Use CC_ADCmode for the result of the carry out.
        Reexpress comparison for overflow.
        (add<mode>3_carryinC_zero): Update for change to add<mode>3_carryinC.
        (add<mode>3_carryinC): Likewise.
        (add<mode>3_carryinV): Use LTU for carry between partials.
        * config/aarch64/predicates.md (aarch64_carry_operation): Update
        handling of CC_Cmode and add CC_ADCmode.
        (aarch64_borrow_operation): Likewise.

2019-01-16  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm-protos.h (neon_vcmla_lane_prepare_operands): Remove patternmode.
        * config/arm/arm.c (neon_vcmla_lane_prepare_operands): Likewise.
        * config/arm/neon.md (neon_vcmla_lane<rot><mode>, neon_vcmla_laneq<rot><mode>,
        neon_vcmlaq_lane<rot><mode>): Remove endianness conversion.

2019-01-16  Martin Liska  <mliska@suse.cz>

        * Makefile.in: Set TOOL_INCLUDE_DIR and NATIVE_SYSTEM_HEADER_DIR
        for GCC driver.
        * config/gnu-user.h (TARGET_F951_OPTIONS): Add 'finclude%s/' as
        a new argument.
        * gcc.c (add_sysrooted_hdrs_prefix): New function.
        (path_prefix_reset): Move up in the source file.
        (find_fortran_preinclude_file): Make complex search for the
        fortran header files.

2019-01-15  Nikhil Benesch  <nikhil.benesch@gmail.com>

        * godump.c (go_output_typedef): When outputting a typedef, refer
        to the underlying type by its name and not its structure.

2019-01-15  David Malcolm  <dmalcolm@redhat.com>

        PR c++/88795
        * tree.c (build_function_type): Assert that arg_types is not
        error_mark_node.

2019-01-15  Richard Sandiford  <richard.sandiford@arm.com>

        PR inline-asm/52813
        * doc/extend.texi: Document that listing the stack pointer in the
        clobber list of an asm is a deprecated feature.
        * common.opt (Wdeprecated): Moved from c-family/c.opt.
        * cfgexpand.c (asm_clobber_reg_is_valid): Issue a -Wdeprecated
        warning instead of an error for clobbers of the stack pointer.
        Add a note explaining why.

2019-01-15  Richard Biener  <rguenther@suse.de>

        PR debug/88046
        * dwarf2out.c (gen_member_die): Do not generate inheritance
        DIEs late.

2019-01-15  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88855
        * tree-if-conv.c (combine_blocks): Collect
        SSA_NAME_OCCURS_IN_ABNORMAL_PHI from propagated out virtuals.

2019-01-15  Tom de Vries  <tdevries@suse.de>

        PR target/80547
        * config/nvptx/nvptx.c (nvptx_goacc_reduction_init): Handle
        lhs == NULL_TREE for gang-level reduction.

2019-01-15  Richard Biener  <rguenther@suse.de>
            Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR ipa/88788
        * ipa-pure-const.c (malloc_candidate_p_1): Add parameter visited and
        return true if SSA_NAME is already marked in visited bitmap.
        (malloc_candidate_p): Pass visited to malloc_candidate_p_1.

2019-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88775
        * match.pd (cmp (convert1?@2 addr@0) (convert2? addr@1)): Optimize
        equal == 0 equality pointer comparisons some more if compared in
        integral types and either one points to an automatic var and the
        other to a global, or we can prove at least one points to the middle
        or both point to start or both point to end.

2019-01-14  Andi Kleen  <ak@linux.intel.com>

        * Makefile.in: Lower autofdo sampling rate by 10x.
        * Makefile.tpl: Dito.

2019-01-14  Tom Honermann  <tom@honermann.net>

        * defaults.h: Define CHAR8_TYPE.

2019-01-14  Martin Sebor  <msebor@redhat.com>

        PR target/88638
        * doc/extend.texi (Darwin Format Checks): Clarify.

2019-01-14  Richard Biener  <rguenther@suse.de>

        * genmatch.c (dt_simplify::gen_1): Change dumping dependent on
        whether we are in (simplify ...) or (match ...) context.

2019-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/88796
        * emit-rtl.h (struct rtl_data): Add stack_protect_guard_decl field.
        * cfgexpand.c (stack_protect_prologue): Initialize
        crtl->stack_protect_guard_decl.
        * function.c (stack_protect_epilogue): Use it instead of calling
        targetm.stack_protect_guard again.
        * dse.c (check_mem_read_rtx): Ignore MEM_VOLATILE_P reads from
        MEMs with MEM_EXPR equal to crtl->stack_protect_guard or
        crtl->stack_protect_guard_decl.
        * config/i386/i386.c (ix86_stack_protect_guard): Set TREE_THIS_VOLATILE
        on the returned MEM_EXPR.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Alow setting
        vector length using -fopenacc-dim.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Take larger vector
        lengths into account.

2019-01-12  Svante Signell  <svante.signell@gmail.com>

        * config/i386/gnu.h (TARGET_THREAD_SSP_OFFSET): Define.
        (TARGET_CAN_SPLIT_STACK): Define.
        (TARGET_THREAD_SPLIT_STACK_OFFSET): Define.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * params.def (inline-unit-growth): Set to 40.

2019-01-12  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-loop-ivopts.c (find_inv_vars): Fix a comment typo.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): In offloading
        region calling vector-partitionable routine, set default_vector_length
        to WARP_SIZE.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Add an use new
        variable default_vector_length.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        PR middle-end/88703
        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Apply defaults
        from oacc_default_dims, as oacc_validate_dims would do it, and apply
        dimensions limits.

2019-01-12  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1)
        (nvptx_goacc_validate_dims): Add used parameter.
        * doc/tm.texi: Regenerate.
        * omp-offload.c (oacc_parse_default_dims, oacc_validate_dims): Add
        argument to call to targetm.goacc.validate_dims.
        (default_goacc_validate_dims): Add used
        parameter.
        * target.def (validate_dims): Add used parameter in DEFHOOK.
        * targhooks.h (default_goacc_validate_dims): Add used parameter.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/85956
        PR lto/88733
        * tree-inline.h (struct copy_body_data): Add adjust_array_error_bounds
        field.
        * tree-inline.c (remap_type_1): Formatting fix.  If TYPE_MAX_VALUE of
        ARRAY_TYPE's TYPE_DOMAIN is newly error_mark_node, replace it with
        a dummy "omp dummy var" variable if id->adjust_array_error_bounds.
        * omp-low.c (new_omp_context): Set cb.adjust_array_error_bounds.

2019-01-11  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/87305
        * lra-assigns.c
        (setup_live_pseudos_and_spill_after_risky_transforms): Add code
        for little endian pseudos used as paradoxical subreg.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/88693
        * tree-ssa-strlen.c (get_min_string_length): Don't set *full_string_p
        for STRING_CSTs that don't contain any NUL characters in the first
        TREE_STRING_LENGTH bytes.

2019-01-11  Alan Modra  <amodra@gmail.com>

        PR 88777
        PR 88614
        * genattrtab.c (min_fn): Don't translate values.
        (min_attr_value): Return INT_MAX when the value can't be calculated.
        Return minimum among any values that can be calculated.
        (max_attr_value): Adjust.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in (PLUGIN_HEADERS): Add $(INSN_ATTR_H).

2019-01-11  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_simd_call_p): New function.
        (aarch64_hard_regno_call_part_clobbered): Add insn argument.
        (aarch64_return_call_with_max_clobbers): New function.
        (TARGET_RETURN_CALL_WITH_MAX_CLOBBERS): New macro.
        * config/avr/avr.c (avr_hard_regno_call_part_clobbered): Add insn
        argument.
        * config/i386/i386.c (ix86_hard_regno_call_part_clobbered): Ditto.
        * config/mips/mips.c (mips_hard_regno_call_part_clobbered): Ditto.
        * config/rs6000/rs6000.c (rs6000_hard_regno_call_part_clobbered): Ditto.
        * config/s390/s390.c (s390_hard_regno_call_part_clobbered): Ditto.
        * cselib.c (cselib_process_insn): Add argument to
        targetm.hard_regno_call_part_clobbered call.
        * ira-conflicts.c (ira_build_conflicts): Ditto.
        * ira-costs.c (ira_tune_allocno_costs): Ditto.
        * lra-constraints.c (inherit_reload_reg): Ditto.
        * lra-int.h (struct lra_reg): Add call_insn field, remove call_p field.
        * lra-lives.c (check_pseudos_live_through_calls): Add call_insn
        argument.  Call targetm.return_call_with_max_clobbers.
        Add argument to targetm.hard_regno_call_part_clobbered call.
        (calls_have_same_clobbers_p): New function.
        (process_bb_lives): Add call_insn and last_call_insn variables.
        Pass call_insn to check_pseudos_live_through_calls.
        Modify if stmt to check targetm.return_call_with_max_clobbers.
        Update setting of flush variable.
        (lra_create_live_ranges_1): Set call_insn to NULL instead of call_p
        to false.
        * lra.c (initialize_lra_reg_info_element): Set call_insn to NULL.
        * regcprop.c (copyprop_hardreg_forward_1): Add argument to
        targetm.hard_regno_call_part_clobbered call.
        * reginfo.c (choose_hard_reg_mode): Ditto.
        * regrename.c (check_new_reg_p): Ditto.
        * reload.c (find_equiv_reg): Ditto.
        * reload1.c (emit_reload_insns): Ditto.
        * sched-deps.c (deps_analyze_insn): Ditto.
        * sel-sched.c (init_regs_for_mode): Ditto.
        (mark_unavailable_hard_regs): Ditto.
        * targhooks.c (default_dwarf_frame_reg_mode): Ditto.
        * target.def (hard_regno_call_part_clobbered): Add insn argument.
        (return_call_with_max_clobbers): New target function.
        * doc/tm.texi: Regenerate.
        * doc/tm.texi.in (TARGET_RETURN_CALL_WITH_MAX_CLOBBERS): New hook.
        * hooks.c (hook_bool_uint_mode_false): Change to
        hook_bool_insn_uint_mode_false.
        * hooks.h (hook_bool_uint_mode_false): Ditto.

2019-01-11  Steve Ellcey  <sellcey@marvell.com>

        * config/aarch64/aarch64.c (aarch64_simd_call_p): New function.
        (aarch64_remove_extra_call_preserved_regs): New function.
        (TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): New macro.
        * doc/tm.texi.in (TARGET_REMOVE_EXTRA_CALL_PRESERVED_REGS): New hook.
        * doc/tm.texi: Regenerate.
        * final.c (get_call_reg_set_usage): Call new hook.
        * target.def (remove_extra_call_preserved_regs): New hook.
        * targhooks.c (default_remove_extra_call_preserved_regs): New function.
        * targhooks.h (default_remove_extra_call_preserved_regs): New function.

2019-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/88714
        * passes.c (finish_optimization_passes): Call print_combine_total_stats
        inside of pass_combine_1 dump rather than pass_profile_1.

2019-01-11  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (PTX_CTA_NUM_BARRIERS, PTX_PER_CTA_BARRIER)
        (PTX_NUM_PER_CTA_BARRIER, PTX_FIRST_PER_WORKER_BARRIER)
        (PTX_NUM_PER_WORKER_BARRIERS): Define.
        (nvptx_apply_dim_limits): Prevent vector_length 64 and
        num_workers 16.

2019-01-11  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (PTX_CTA_SIZE): Move up.

2019-01-11  Jan Beulich  <jbeulich@suse.com>

        * config/i386/i386.md (rex64suffix): Add L suffix for SI.
        * config/i386/sse.md (cvtusi2<ssescalarmodesuffix>32<round_name>,
        sse2_cvtsi2sd): Add {l}.
        (sse2_cvtsi2sdq<round_name>): Make q conditional upon AT&T
        syntax.

2019-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/88785
        * config/i386/sse.md (float<floatunssuffix>v2div2sf2): Turn into
        define_expand.
        (*float<floatunssuffix>v2div2sf2): New define_insn.
        (float<floatunssuffix>v2div2sf2_mask): Turn into define_expand.
        (*float<floatunssuffix>v2div2sf2_mask): New define_insn.
        (*float<floatunssuffix>v2div2sf2_mask_1): Replace
        subrtxes (const_vector:V2SF [(const_int 0) (const_int 0)]) with
        match_operands with "const0_operand" "C".

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c
        (aarch64_init_builtins): Move aarch64_init_fcmla_laneq_builtins...
        (aarch64_init_simd_builtins): ...Here

2019-01-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/87305
        * lra-assigns.c
        (setup_live_pseudos_and_spill_after_risky_transforms): Check
        allocation for big endian pseudos used as paradoxical subregs and
        spill them if it is wrong.
        * lra-constraints.c (lra_constraints): Add a comment.

2019-01-10  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88792
        * tree-ssa-pre.c (get_representative_for): Do not return a
        value-number here.

2019-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/84877
        PR bootstrap/88450
        * function.c (assign_stack_local_1): Revert the 2018-11-21 changes.
        (assign_parm_setup_block): Do the argument slot realignment here
        instead.

2019-01-10  Stefan Agner  <stefan@agner.ch>

        PR target/88648
        * config/arm/arm.c (arm_option_override_internal): Force
        opts->x_inline_asm_unified to true only if TARGET_THUMB2_P.

2019-01-10  Jakub Jelinek  <jakub@redhat.com>

        PR c/88568
        * attribs.c (handle_dll_attribute): Clear TREE_STATIC after setting
        DECL_EXTERNAL.

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

        * config/arm/arm-builtins.c
        (enum arm_type_qualifiers): Add qualifier_lane_pair_index.
        (MAC_LANE_PAIR_QUALIFIERS): New.
        (arm_expand_builtin_args): Use it.
        (arm_expand_builtin_1): Likewise.
        * config/arm/arm-protos.h (neon_vcmla_lane_prepare_operands): New.
        * config/arm/arm.c (neon_vcmla_lane_prepare_operands): New.
        * config/arm/arm-c.c (arm_cpu_builtins): Add __ARM_FEATURE_COMPLEX.
        * config/arm/arm_neon.h:
        (vcadd_rot90_f16): New.
        (vcaddq_rot90_f16): New.
        (vcadd_rot270_f16): New.
        (vcaddq_rot270_f16): New.
        (vcmla_f16): New.
        (vcmlaq_f16): New.
        (vcmla_lane_f16): New.
        (vcmla_laneq_f16): New.
        (vcmlaq_lane_f16): New.
        (vcmlaq_laneq_f16): New.
        (vcmla_rot90_f16): New.
        (vcmlaq_rot90_f16): New.
        (vcmla_rot90_lane_f16): New.
        (vcmla_rot90_laneq_f16): New.
        (vcmlaq_rot90_lane_f16): New.
        (vcmlaq_rot90_laneq_f16): New.
        (vcmla_rot180_f16): New.
        (vcmlaq_rot180_f16): New.
        (vcmla_rot180_lane_f16): New.
        (vcmla_rot180_laneq_f16): New.
        (vcmlaq_rot180_lane_f16): New.
        (vcmlaq_rot180_laneq_f16): New.
        (vcmla_rot270_f16): New.
        (vcmlaq_rot270_f16): New.
        (vcmla_rot270_lane_f16): New.
        (vcmla_rot270_laneq_f16): New.
        (vcmlaq_rot270_lane_f16): New.
        (vcmlaq_rot270_laneq_f16): New.
        (vcadd_rot90_f32): New.
        (vcaddq_rot90_f32): New.
        (vcadd_rot270_f32): New.
        (vcaddq_rot270_f32): New.
        (vcmla_f32): New.
        (vcmlaq_f32): New.
        (vcmla_lane_f32): New.
        (vcmla_laneq_f32): New.
        (vcmlaq_lane_f32): New.
        (vcmlaq_laneq_f32): New.
        (vcmla_rot90_f32): New.
        (vcmlaq_rot90_f32): New.
        (vcmla_rot90_lane_f32): New.
        (vcmla_rot90_laneq_f32): New.
        (vcmlaq_rot90_lane_f32): New.
        (vcmlaq_rot90_laneq_f32): New.
        (vcmla_rot180_f32): New.
        (vcmlaq_rot180_f32): New.
        (vcmla_rot180_lane_f32): New.
        (vcmla_rot180_laneq_f32): New.
        (vcmlaq_rot180_lane_f32): New.
        (vcmlaq_rot180_laneq_f32): New.
        (vcmla_rot270_f32): New.
        (vcmlaq_rot270_f32): New.
        (vcmla_rot270_lane_f32): New.
        (vcmla_rot270_laneq_f32): New.
        (vcmlaq_rot270_lane_f32): New.
        (vcmlaq_rot270_laneq_f32): New.
        * config/arm/arm_neon_builtins.def (vcadd90, vcadd270, vcmla0, vcmla90,
        vcmla180, vcmla270, vcmla_lane0, vcmla_lane90, vcmla_lane180, vcmla_lane270,
        vcmla_laneq0, vcmla_laneq90, vcmla_laneq180, vcmla_laneq270,
        vcmlaq_lane0, vcmlaq_lane90, vcmlaq_lane180, vcmlaq_lane270): New.
        * config/arm/neon.md (neon_vcmla_lane<rot><mode>,
        neon_vcmla_laneq<rot><mode>, neon_vcmlaq_lane<rot><mode>): New.
        * config/arm/arm.c (arm_arch8_3, arm_arch8_4): New.
        * config/arm/arm.h (TARGET_COMPLEX, arm_arch8_3, arm_arch8_4): New.
        (arm_option_reconfigure_globals): Use them.
        * config/arm/iterators.md (VDF, VQ_HSF): New.
        (VCADD, VCMLA): New.
        (VF_constraint, rot, rotsplit1, rotsplit2): Add V4HF and V8HF.
        * config/arm/neon.md (neon_vcadd<rot><mode>, neon_vcmla<rot><mode>): New.
        * config/arm/unspecs.md (UNSPEC_VCADD90, UNSPEC_VCADD270,
        UNSPEC_VCMLA, UNSPEC_VCMLA90, UNSPEC_VCMLA180, UNSPEC_VCMLA270): New.

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

        * config/aarch64/aarch64-builtins.c (enum aarch64_type_qualifiers): Add qualifier_lane_pair_index.
        (emit-rtl.h): Include.
        (TYPES_QUADOP_LANE_PAIR): New.
        (aarch64_simd_expand_args): Use it.
        (aarch64_simd_expand_builtin): Likewise.
        (AARCH64_SIMD_FCMLA_LANEQ_BUILTINS, aarch64_fcmla_laneq_builtin_datum): New.
        (FCMLA_LANEQ_BUILTIN, AARCH64_SIMD_FCMLA_LANEQ_BUILTIN_BASE,
        AARCH64_SIMD_FCMLA_LANEQ_BUILTINS, aarch64_fcmla_lane_builtin_data,
        aarch64_init_fcmla_laneq_builtins, aarch64_expand_fcmla_builtin): New.
        (aarch64_init_builtins): Add aarch64_init_fcmla_laneq_builtins.
        (aarch64_expand_buildin): Add AARCH64_SIMD_BUILTIN_FCMLA_LANEQ0_V2SF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ90_V2SF, AARCH64_SIMD_BUILTIN_FCMLA_LANEQ180_V2SF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ2700_V2SF, AARCH64_SIMD_BUILTIN_FCMLA_LANEQ0_V4HF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ90_V4HF, AARCH64_SIMD_BUILTIN_FCMLA_LANEQ180_V4HF,
        AARCH64_SIMD_BUILTIN_FCMLA_LANEQ270_V4HF.
        * config/aarch64/iterators.md (FCMLA_maybe_lane): New.
        * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Add __ARM_FEATURE_COMPLEX.
        * config/aarch64/aarch64-simd-builtins.def (fcadd90, fcadd270, fcmla0, fcmla90,
        fcmla180, fcmla270, fcmla_lane0, fcmla_lane90, fcmla_lane180, fcmla_lane270,
        fcmla_laneq0, fcmla_laneq90, fcmla_laneq180, fcmla_laneq270,
        fcmlaq_lane0, fcmlaq_lane90, fcmlaq_lane180, fcmlaq_lane270): New.
        * config/aarch64/aarch64-simd.md (aarch64_fcmla_lane<rot><mode>,
        aarch64_fcmla_laneq<rot>v4hf, aarch64_fcmlaq_lane<rot><mode>,aarch64_fcadd<rot><mode>,
        aarch64_fcmla<rot><mode>): New.
        * config/aarch64/arm_neon.h:
        (vcadd_rot90_f16): New.
        (vcaddq_rot90_f16): New.
        (vcadd_rot270_f16): New.
        (vcaddq_rot270_f16): New.
        (vcmla_f16): New.
        (vcmlaq_f16): New.
        (vcmla_lane_f16): New.
        (vcmla_laneq_f16): New.
        (vcmlaq_lane_f16): New.
        (vcmlaq_rot90_lane_f16): New.
        (vcmla_rot90_laneq_f16): New.
        (vcmla_rot90_lane_f16): New.
        (vcmlaq_rot90_f16): New.
        (vcmla_rot90_f16): New.
        (vcmlaq_laneq_f16): New.
        (vcmla_rot180_laneq_f16): New.
        (vcmla_rot180_lane_f16): New.
        (vcmlaq_rot180_f16): New.
        (vcmla_rot180_f16): New.
        (vcmlaq_rot90_laneq_f16): New.
        (vcmlaq_rot270_laneq_f16): New.
        (vcmlaq_rot270_lane_f16): New.
        (vcmla_rot270_laneq_f16): New.
        (vcmlaq_rot270_f16): New.
        (vcmla_rot270_f16): New.
        (vcmlaq_rot180_laneq_f16): New.
        (vcmlaq_rot180_lane_f16): New.
        (vcmla_rot270_lane_f16): New.
        (vcadd_rot90_f32): New.
        (vcaddq_rot90_f32): New.
        (vcaddq_rot90_f64): New.
        (vcadd_rot270_f32): New.
        (vcaddq_rot270_f32): New.
        (vcaddq_rot270_f64): New.
        (vcmla_f32): New.
        (vcmlaq_f32): New.
        (vcmlaq_f64): New.
        (vcmla_lane_f32): New.
        (vcmla_laneq_f32): New.
        (vcmlaq_lane_f32): New.
        (vcmlaq_laneq_f32): New.
        (vcmla_rot90_f32): New.
        (vcmlaq_rot90_f32): New.
        (vcmlaq_rot90_f64): New.
        (vcmla_rot90_lane_f32): New.
        (vcmla_rot90_laneq_f32): New.
        (vcmlaq_rot90_lane_f32): New.
        (vcmlaq_rot90_laneq_f32): New.
        (vcmla_rot180_f32): New.
        (vcmlaq_rot180_f32): New.
        (vcmlaq_rot180_f64): New.
        (vcmla_rot180_lane_f32): New.
        (vcmla_rot180_laneq_f32): New.
        (vcmlaq_rot180_lane_f32): New.
        (vcmlaq_rot180_laneq_f32): New.
        (vcmla_rot270_f32): New.
        (vcmlaq_rot270_f32): New.
        (vcmlaq_rot270_f64): New.
        (vcmla_rot270_lane_f32): New.
        (vcmla_rot270_laneq_f32): New.
        (vcmlaq_rot270_lane_f32): New.
        (vcmlaq_rot270_laneq_f32): New.
        * config/aarch64/aarch64.h (TARGET_COMPLEX): New.
        * config/aarch64/iterators.md (UNSPEC_FCADD90, UNSPEC_FCADD270,
        UNSPEC_FCMLA, UNSPEC_FCMLA90, UNSPEC_FCMLA180, UNSPEC_FCMLA270): New.
        (FCADD, FCMLA): New.
        (rot): New.
        * config/arm/types.md (neon_fcadd, neon_fcmla): New.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615

        * config/pa/pa.c: Change "can not" to "cannot".
        * gimple-ssa-evrp-analyze.c: Likewise.
        * ipa-icf.c: Likewise.
        * ipa-polymorphic-call.c: Likewise.
        * ipa-pure-const.c: Likewise.
        * lra-constraints.c: Likewise.
        * lra-remat.c: Likewise.
        * reload1.c: Likewise.
        * reorg.c: Likewise.
        * tree-ssa-uninit.c: Likewise.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615

        * Makefile.in: Mechanically replace "can not" with "cannot".
        * alias.c: Likewise.
        * builtins.c: Likewise.
        * calls.c: Likewise.
        * cgraph.c: Likewise.
        * cgraph.h: Likewise.
        * cgraphclones.c: Likewise.
        * cgraphunit.c: Likewise.
        * combine-stack-adj.c: Likewise.
        * combine.c: Likewise.
        * common/config/i386/i386-common.c: Likewise.
        * config/aarch64/aarch64.c: Likewise.
        * config/alpha/sync.md: Likewise.
        * config/arc/arc.c: Likewise.
        * config/arc/predicates.md: Likewise.
        * config/arm/arm-c.c: Likewise.
        * config/arm/arm.c: Likewise.
        * config/arm/arm.h: Likewise.
        * config/arm/arm.md: Likewise.
        * config/arm/cortex-r4f.md: Likewise.
        * config/csky/csky.c: Likewise.
        * config/csky/csky.h: Likewise.
        * config/darwin-f.c: Likewise.
        * config/epiphany/epiphany.md: Likewise.
        * config/i386/i386.c: Likewise.
        * config/i386/sol2.h: Likewise.
        * config/m68k/m68k.c: Likewise.
        * config/mcore/mcore.h: Likewise.
        * config/microblaze/microblaze.md: Likewise.
        * config/mips/20kc.md: Likewise.
        * config/mips/sb1.md: Likewise.
        * config/nds32/nds32.c: Likewise.
        * config/nds32/predicates.md: Likewise.
        * config/pa/pa.c: Likewise.
        * config/rs6000/e300c2c3.md: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/s390/s390.h: Likewise.
        * config/sh/sh.c: Likewise.
        * config/sh/sh.md: Likewise.
        * config/spu/vmx2spu.h: Likewise.
        * cprop.c: Likewise.
        * dbxout.c: Likewise.
        * df-scan.c: Likewise.
        * doc/cfg.texi: Likewise.
        * doc/extend.texi: Likewise.
        * doc/fragments.texi: Likewise.
        * doc/gty.texi: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/lto.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/objc.texi: Likewise.
        * doc/rtl.texi: Likewise.
        * doc/tm.texi: Likewise.
        * dse.c: Likewise.
        * emit-rtl.c: Likewise.
        * emit-rtl.h: Likewise.
        * except.c: Likewise.
        * expmed.c: Likewise.
        * expr.c: Likewise.
        * fold-const.c: Likewise.
        * genautomata.c: Likewise.
        * gimple-fold.c: Likewise.
        * hard-reg-set.h: Likewise.
        * ifcvt.c: Likewise.
        * ipa-comdats.c: Likewise.
        * ipa-cp.c: Likewise.
        * ipa-devirt.c: Likewise.
        * ipa-fnsummary.c: Likewise.
        * ipa-icf.c: Likewise.
        * ipa-inline-transform.c: Likewise.
        * ipa-inline.c: Likewise.
        * ipa-polymorphic-call.c: Likewise.
        * ipa-profile.c: Likewise.
        * ipa-prop.c: Likewise.
        * ipa-pure-const.c: Likewise.
        * ipa-reference.c: Likewise.
        * ipa-split.c: Likewise.
        * ipa-visibility.c: Likewise.
        * ipa.c: Likewise.
        * ira-build.c: Likewise.
        * ira-color.c: Likewise.
        * ira-conflicts.c: Likewise.
        * ira-costs.c: Likewise.
        * ira-int.h: Likewise.
        * ira-lives.c: Likewise.
        * ira.c: Likewise.
        * ira.h: Likewise.
        * loop-invariant.c: Likewise.
        * loop-unroll.c: Likewise.
        * lower-subreg.c: Likewise.
        * lra-assigns.c: Likewise.
        * lra-constraints.c: Likewise.
        * lra-eliminations.c: Likewise.
        * lra-lives.c: Likewise.
        * lra-remat.c: Likewise.
        * lra-spills.c: Likewise.
        * lra.c: Likewise.
        * lto-cgraph.c: Likewise.
        * lto-streamer-out.c: Likewise.
        * postreload-gcse.c: Likewise.
        * predict.c: Likewise.
        * profile-count.h: Likewise.
        * profile.c: Likewise.
        * recog.c: Likewise.
        * ree.c: Likewise.
        * reload.c: Likewise.
        * reload1.c: Likewise.
        * reorg.c: Likewise.
        * resource.c: Likewise.
        * rtl.def: Likewise.
        * rtl.h: Likewise.
        * rtlanal.c: Likewise.
        * sched-deps.c: Likewise.
        * sched-ebb.c: Likewise.
        * sched-rgn.c: Likewise.
        * sel-sched-ir.c: Likewise.
        * sel-sched.c: Likewise.
        * shrink-wrap.c: Likewise.
        * simplify-rtx.c: Likewise.
        * symtab.c: Likewise.
        * target.def: Likewise.
        * toplev.c: Likewise.
        * tree-call-cdce.c: Likewise.
        * tree-cfg.c: Likewise.
        * tree-complex.c: Likewise.
        * tree-core.h: Likewise.
        * tree-eh.c: Likewise.
        * tree-inline.c: Likewise.
        * tree-loop-distribution.c: Likewise.
        * tree-nrv.c: Likewise.
        * tree-profile.c: Likewise.
        * tree-sra.c: Likewise.
        * tree-ssa-alias.c: Likewise.
        * tree-ssa-dce.c: Likewise.
        * tree-ssa-dom.c: Likewise.
        * tree-ssa-forwprop.c: Likewise.
        * tree-ssa-loop-im.c: Likewise.
        * tree-ssa-loop-ivcanon.c: Likewise.
        * tree-ssa-loop-ivopts.c: Likewise.
        * tree-ssa-loop-niter.c: Likewise.
        * tree-ssa-phionlycprop.c: Likewise.
        * tree-ssa-phiopt.c: Likewise.
        * tree-ssa-propagate.c: Likewise.
        * tree-ssa-threadedge.c: Likewise.
        * tree-ssa-threadupdate.c: Likewise.
        * tree-ssa-uninit.c: Likewise.
        * tree-ssanames.c: Likewise.
        * tree-streamer-out.c: Likewise.
        * tree.c: Likewise.
        * tree.h: Likewise.
        * vr-values.c: Likewise.

2019-01-09  Uroš Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (ix86_expand_xorsign): New prototype.
        (ix86_split_xorsign): Ditto.
        * config/i386/i386.c (ix86_expand_xorsign): New function.
        (ix86_split_xorsign): Ditto.
        * config/i386/i386.md (UNSPEC_XORSIGN): New unspec.
        (xorsign<mode>3): New expander.
        (xorsign<mode>3_1): New insn_and_split pattern.
        * config/i386/sse.md (xorsign<mode>3): New expander.

2019-01-09  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (*tablejump_sp32): Merge into...
        (*tablejump_sp64): Likewise.
        (*tablejump<P:mode>): ...this.
        (*call_address_sp32): Merge into...
        (*call_address_sp64): Likewise.
        (*call_address<P:mode>): ...this.
        (*call_symbolic_sp32): Merge into...
        (*call_symbolic_sp64): Likewise.
        (*call_symbolic<P:mode>): ...this.
        (call_value): Remove constraint and add predicate.
        (*call_value_address_sp32): Merge into...
        (*call_value_address_sp64): Likewise.
        (*call_value_address<P:mode>): ...this.
        (*call_value_symbolic_sp32): Merge into...
        (*call_value_symbolic_sp64): Likewise.
        (*call_value_symbolic<P:mode>): ...this.
        (*sibcall_symbolic_sp32): Merge into...
        (*sibcall_symbolic_sp64): Likewise.
        (*sibcall_symbolic<P:mode>): ...this.
        (sibcall_value): Remove constraint and add predicate.
        (*sibcall_value_symbolic_sp32): Merge into...
        (*sibcall_value_symbolic_sp64): Likewise.
        (*sibcall_value_symbolic<P:mode>): ...this.
        (window_save): Minor tweak.
        (*branch_sp32): Merge into...
        (*branch_sp64): Likewise.
        (*branch<P:mode>): ...this.

2019-01-09  Eric Botcazou  <ebotcazou@adacore.com>
            James Clarke  <jrtc27@jrtc27.com>

        PR target/84010
        * config/sparc/sparc.c (sparc_legitimize_tls_address): Only use Pmode
        consistently in TLS address generation and adjust code to the renaming
        of patterns.  Mark calls to __tls_get_addr as const.
        * config/sparc/sparc.md (tgd_hi22): Turn into...
        (tgd_hi22<P:mode>): ...this and use Pmode throughout.
        (tgd_lo10): Turn into...
        (tgd_lo10<P:mode>): ...this and use Pmode throughout.
        (tgd_add32): Merge into...
        (tgd_add64): Likewise.
        (tgd_add<P:mode>): ...this and use Pmode throughout.
        (tldm_hi22): Turn into...
        (tldm_hi22<P:mode>): ...this and use Pmode throughout.
        (tldm_lo10): Turn into...
        (tldm_lo10<P:mode>): ...this and use Pmode throughout.
        (tldm_add32): Merge into...
        (tldm_add64): Likewise.
        (tldm_add<P:mode>): ...this and use Pmode throughout.
        (tldm_call32): Merge into...
        (tldm_call64): Likewise.
        (tldm_call<P:mode>): ...this and use Pmode throughout.
        (tldo_hix22): Turn into...
        (tldo_hix22<P:mode>): ...this and use Pmode throughout.
        (tldo_lox10): Turn into...
        (tldo_lox10<P:mode>): ...this and use Pmode throughout.
        (tldo_add32): Merge into...
        (tldo_add64): Likewise.
        (tldo_add<P:mode>): ...this and use Pmode throughout.
        (tie_hi22): Turn into...
        (tie_hi22<P:mode>): ...this and use Pmode throughout.
        (tie_lo10): Turn into...
        (tie_lo10<P:mode>): ...this and use Pmode throughout.
        (tie_ld64): Use DImode throughout.
        (tie_add32): Merge into...
        (tie_add64): Likewise.
        (tie_add<P:mode>): ...this and use Pmode throughout.
        (tle_hix22_sp32): Merge into...
        (tle_hix22_sp64): Likewise.
        (tle_hix22<P:mode>): ...this and use Pmode throughout.
        (tle_lox22_sp32): Merge into...
        (tle_lox22_sp64): Likewise.
        (tle_lox22<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub_sp32): Merge into...
        (*tldo_ldub_sp64): Likewise.
        (*tldo_ldub<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub1_sp32): Merge into...
        (*tldo_ldub1_sp64): Likewise.
        (*tldo_ldub1<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub2_sp32): Merge into...
        (*tldo_ldub2_sp64): Likewise.
        (*tldo_ldub2<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldsb1_sp32): Merge into...
        (*tldo_ldsb1_sp64): Likewise.
        (*tldo_ldsb1<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldsb2_sp32): Merge into...
        (*tldo_ldsb2_sp64): Likewise.
        (*tldo_ldsb2<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldub3_sp64): Use DImode throughout.
        (*tldo_ldsb3_sp64): Likewise.
        (*tldo_lduh_sp32): Merge into...
        (*tldo_lduh_sp64): Likewise.
        (*tldo_lduh<P:mode>): ...this and use Pmode throughout.
        (*tldo_lduh1_sp32): Merge into...
        (*tldo_lduh1_sp64): Likewise.
        (*tldo_lduh1<P:mode>): ...this and use Pmode throughout.
        (*tldo_ldsh1_sp32): Merge into...
        (*tldo_ldsh1_sp64): Likewise.
        (*tldo_ldsh1<P:mode>): ...this and use Pmode throughout.
        (*tldo_lduh2_sp64): Use DImode throughout.
        (*tldo_ldsh2_sp64): Likewise.
        (*tldo_lduw_sp32): Merge into...
        (*tldo_lduw_sp64): Likewise.
        (*tldo_lduw<P:mode>): ...this and use Pmode throughout.
        (*tldo_lduw1_sp64): Use DImode throughout.
        (*tldo_ldsw1_sp64): Likewise.
        (*tldo_ldx_sp64): Likewise.
        (*tldo_stb_sp32): Merge into...
        (*tldo_stb_sp64): Likewise.
        (*tldo_stb<P:mode>): ...this and use Pmode throughout.
        (*tldo_sth_sp32): Merge into...
        (*tldo_sth_sp64): Likewise.
        (*tldo_sth<P:mode>): ...this and use Pmode throughout.
        (*tldo_stw_sp32): Merge into...
        (*tldo_stw_sp64): Likewise.
        (*tldo_stw<P:mode>): ...this and use Pmode throughout.
        (*tldo_stx_sp64): Use DImode throughout.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_override_options): Add case to
        check configure option to set BTI and Return Address Signing.
        * configure.ac: Add --enable-standard-branch-protection and
        --disable-standard-branch-protection.
        * configure: Regenerated.
        * doc/install.texi: Document the same.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>
            Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config.gcc (aarch64*-*-*): Add aarch64-bti-insert.o.
        * config/aarch64/aarch64.h: Update comment for TRAMPOLINE_SIZE.
        * config/aarch64/aarch64.c (aarch64_asm_trampoline_template): Update
        if bti is enabled.
        * config/aarch64/aarch64-bti-insert.c: New file.
        * config/aarch64/aarch64-passes.def (INSERT_PASS_BEFORE): Insert bti
        pass.
        * config/aarch64/aarch64-protos.h (make_pass_insert_bti): Declare the
        new bti pass.
        * config/aarch64/aarch64.md (unspecv): Add UNSPECV_BTI_NOARG,
        UNSPECV_BTI_C, UNSPECV_BTI_J and UNSPECV_BTI_JC.
        (bti_noarg, bti_j, bti_c, bti_jc): New define_insns.
        * config/aarch64/t-aarch64: Add rule for aarch64-bti-insert.o.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-protos.h (aarch64_bti_enabled): Declare.
        * config/aarch64/aarch64.c (aarch64_handle_no_branch_protection):
        Disable bti for -mbranch-protection=none.
        (aarch64_handle_standard_branch_protection): Enable bti for
        -mbranch-protection=standard.
        (aarch64_handle_bti_protection): Enable bti for "bti" in the string to
        -mbranch-protection.
        (aarch64_bti_enabled): Check if bti is enabled.
        * config/aarch64/aarch64.opt: Declare target variable.
        * doc/invoke.texi: Add bti to the -mbranch-protection documentation.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64.c (aarch64_expand_prologue): Use new
        epilogue/prologue scratch registers EP0_REGNUM and EP1_REGNUM.
        (aarch64_expand_epilogue): Likewise.
        (aarch64_output_mi_thunk): Likewise
        * config/aarch64/aarch64.h (REG_CLASS_CONTENTS): Change
        TAILCALL_ADDR_REGS to x16 and x17.
        * config/aarch64/aarch64.md: Define EP0_REGNUM and EP1_REGNUM.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-option-extensions.def: Define
        AARCH64_OPT_EXTENSION for memtag, rng, sb, ssbs and predres.
        * config/aarch64/aarch64.h (AARCH64_FL_RNG): New.
        (AARCH64_FL_MEMTAG, ARCH64_FL_SB, AARCH64_FL_SSBS): New.
        (AARCH64_FL_PREDRES): New.
        (AARCH64_FL_FOR_ARCH8_5): Add AARCH64_FL_SB, AARCH64_FL_SSBS and
        AARCH64_FL_PREDRES by default.
        * doc/invoke.texi: Document rng, memtag, sb, ssbs and predres.

2018-01-09  Sudakshina Das  <sudi.das@arm.com>

        * config/aarch64/aarch64-arches.def: Define AARCH64_ARCH for
        ARMv8.5-A.
        * config/aarch64/aarch64.h (AARCH64_FL_V8_5): New.
        (AARCH64_FL_FOR_ARCH8_5, AARCH64_ISA_V8_5): New.
        * doc/invoke.texi: Document ARMv8.5-A.

2019-01-09  Alejandro Martinez  <alejandro.martinezvicente@arm.com>

        * config/aarch64/aarch64-sve.md (copysign<mode>3): New define_expand.
        (xorsign<mode>3): Likewise.

2019-01-09  Jelinek  <jakub@redhat.com>

        PR middle-end/88758
        * tree.c (initializer_each_zero_or_onep) <case VECTOR_CST>: Use
        vector_cst_elt instead of VECTOR_CST_ENCODED_ELT.

        PR rtl-optimization/88331
        * function.c (assign_stack_local_1): Don't set dynamic_align_addr if
        not currently_expanding_to_rtl.

2019-01-09  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (-Os): Remove trailing spaces.
        (-finline-functions): Remove reference to -O2.

2019-01-08  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/79593
        * config/i386/i386.md (reg = mem; mem = reg): New define_peephole2.

        * config/rs6000/rs6000.c (rs6000_delegitimize_address): Delegitimize
        UNSPEC_FUSION_GPR to its argument.  Formatting fixes.

2019-01-08  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/88721
        * config/sparc/sparc.c (function_arg_slotno): Set *PPREGNO & *PPADDING
        to -1 on entry.

        PR debug/88723
        * config/sparc/sparc.c (sparc_delegitimize_address): Deal with naked
        UNSPECs and UNSPEC_MOVE_GOTDATA specifically.

2019-01-08  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/88717
        * config/i386/i386.c (ix86_avx_u128_mode_exit): Call
        ix86_avx_u128_mode_entry.

2019-01-08  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/88753
        * tree-switch-conversion.c (switch_conversion::build_one_array):
        Come up with local variable constructor.  Convert first to
        type of constructor values.

2019-01-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/86554
        * tree-ssa-sccvn.c (eliminate_dom_walker, rpo_elim,
        rpo_avail): Move earlier.
        (visit_nary_op): When value-numbering to expressions
        with different overflow behavior make sure there's an
        available expression on the path.

2019-01-08  Sam Tebbs  <sam.tebbs@arm.com>

        * config/aarch64/aarch64.c (BRANCH_PROTECT_STR_MAX,
        aarch64_parse_branch_protection,
        struct aarch64_branch_protect_type,
        aarch64_handle_no_branch_protection,
        aarch64_handle_standard_branch_protection,
        aarch64_validate_mbranch_protection,
        aarch64_handle_pac_ret_protection,
        aarch64_handle_attr_branch_protection,
        accepted_branch_protection_string,
        aarch64_pac_ret_subtypes,
        aarch64_branch_protect_types,
        aarch64_handle_pac_ret_leaf): Define.
        (aarch64_override_options_after_change_1, aarch64_override_options):
        Add check for accepted_branch_protection_string.
        (aarch64_option_save): Save accepted_branch_protection_string.
        (aarch64_option_restore): Save accepted_branch_protection_string.
        * config/aarch64/aarch64.c (aarch64_attributes): Add branch-protection.
        * config/aarch64/aarch64.opt: Add mbranch-protection. Deprecate
        msign-return-address.
        * doc/invoke.texi: Add mbranch-protection.

2019-01-08  Alan Modra  <amodra@gmail.com>

        PR target/88614
        * genattrtab.c (max_attr_value, min_attr_value, or_attr_value):
        Delete "unknownp" parameter.  Adjust callers.  Handle
        CONST_INT, PLUS, MINUS, and MULT.
        (attr_value_aligned): Renamed from or_attr_value.
        (min_attr_value): Return INT_MIN for unhandled rtl case..
        (min_fn): ..and translate to INT_MAX here.
        (write_length_unit_log): Modify to cope without "unknown".
        (write_attr_value): Handle IF_THEN_ELSE.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        * tree-vect-stmts.c (vectorizable_store): Don't use the dataref_offset
        optimization for masked stores.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR middle-end/88567
        * tree-vect-loop.c (get_initial_defs_for_reduction): Pass the
        output vector directly to duplicate_and_interleave instead of
        going through a temporary.  Postpone insertion of ctor_seq to
        the end of the loop.

2019-01-07  Richard Earnshaw  <rearnsha@arm.com>

        PR target/86891
        * config/aarch64/aarch64.c (aarch64_expand_subvti): New parameter
        unsigned_p.  Handle signed and unsigned overflow correction as
        required.
        * config/aarch64/aarch64-protos.h (aarch64_expand_subvti): Update
        prototype.
        * config/aarch64/aarch64.md (addv<mode>4): Use aarch64_plus_operand
        for operand 2.
        (add<mode>3_compareV_imm): Make this callable for expanding.
        (subv<GPI:mode>4): Use register_operand for operand 1.  Use
        aarch64_plus_operand for operand 2.
        (subv<GPI:mode>_insn): New insn pattern.
        (subv<GPI:mode>_imm): Likewise.
        (negv<GPI:mode>3): New expand pattern.
        (negv<GPI:mode>_insn): New insn pattern.
        (negv<GPI:mode>_cmp_only): Likewise.
        (cmpv<GPI:mode>_insn): Likewise.
        (subvti4): Use register_operand for operand 1.  Update call to
        aarch64_expand_subvti.
        (usubvti4): Likewise.
        (negvti3): New expand pattern.
        (negdi_carryout): New insn pattern.
        (negvdi_carryinV): New insn pattern.
        (sub<mode3>_compare1_imm): Delete named insn pattern, make anonymous
        version the named version.
        (peepholes to convert to sub<mode3>_compare1_imm): Adjust order of
        operands.
        (usub<GPI:mode>3_carryinC, usub<GPI:mode>3_carryinC_z1): New insn
        patterns.
        (usub<GPI:mode>3_carryinC_z2, usub<GPI:mode>3_carryinC): New insn
        patterns.
        (sub<mode>3_carryinCV, sub<mode>3_carryinCV_z1_z2): Delete.
        (sub<mode>3_carryinCV_z1, sub<mode>3_carryinCV_z2): Delete.
        (sub<mode>3_carryinCV): Delete.
        (sub<GPI:mode>3_carryinV): New expand pattern.
        sub<mode>3_carryinV, sub<mode>3_carryinV_z2): New insn patterns.

2019-01-07  Richard Biener  <rguenther@suse.de>

        * tree-ssa-uncprop.c (ssa_equip_hash_traits): Remove in favor
        of tree_operand_hash.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/88598
        * tree.h (single_nonzero_element): Declare.
        * tree.c (single_nonzero_element): New function.
        * match.pd: Fold certain reductions of X & CST to X[I] & CST[I]
        if I is the only nonzero element of CST.

2019-01-07  Richard Sandiford  <richard.sandiford@arm.com>

        PR tree-optimization/88598
        * tree.h (initializer_each_zero_or_onep): Declare.
        * tree.c (initializer_each_zero_or_onep): New function.
        (signed_or_unsigned_type_for): Handle float types too.
        (unsigned_type_for, signed_type_for): Update comments accordingly.
        * match.pd: Fold x * { 0 or 1, 0 or 1, ...} to
        x & { 0 or -1, 0 or -1, ... }.

2019-01-07  Jonathan Wakely  <jwakely@redhat.com>

        * doc/install.texi: Replace references to x86_64-unknown-linux-gnu
        with x86_64-pc-linux-gnu.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        PR target/85486
        * config/nvptx/nvptx.c (has_vector_partitionable_routine_calls_p): New
        function.
        (nvptx_goacc_validate_dims): Force vl32 if calling vector-partitionable
        routines.

2019-01-07  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_extract<mode><ssehalfvecmodelower>): Use
        V_256_512 iterator instead of V_512 and TARGET_AVX instead of
        TARGET_AVX512F as condition.

        PR debug/88723
        * dwarf2out.c (const_ok_for_output_1): Remove redundant call to
        const_not_ok_for_debug_p target hook.
        (mem_loc_descriptor) <case UNSPEC>: Only call const_ok_for_output_1
        on UNSPEC and subexpressions thereof if all subexpressions of the
        UNSPEC are CONSTANT_P.

        PR tree-optimization/88676
        * tree-ssa-phiopt.c (two_value_replacement): New function.
        (tree_ssa_phiopt_worker): Call it.

        PR sanitizer/88619
        * cfgexpand.c (expand_stack_vars): Only align prev_offset to
        ASAN_MIN_RED_ZONE_SIZE, not to maximum of that and alignb.

        PR c++/85052
        * tree-vect-generic.c: Include insn-config.h and recog.h.
        (expand_vector_piecewise): Add defaulted ret_type argument,
        if non-NULL, use that in preference to type for the result type.
        (expand_vector_parallel): Formatting fix.
        (do_vec_conversion, do_vec_narrowing_conversion,
        expand_vector_conversion): New functions.
        (expand_vector_operations_1): Call expand_vector_conversion
        for VEC_CONVERT ifn calls.
        * internal-fn.def (VEC_CONVERT): New internal function.
        * internal-fn.c (expand_VEC_CONVERT): New function.
        * fold-const-call.c (fold_const_vec_convert): New function.
        (fold_const_call): Use it for CFN_VEC_CONVERT.
        * doc/extend.texi (__builtin_convertvector): Document.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx-protos.h (nvptx_output_red_partition): Declare.
        * config/nvptx/nvptx.c (vector_red_size, vector_red_align,
        vector_red_partition, vector_red_sym): New global variables.
        (nvptx_option_override): Initialize vector_red_sym.
        (nvptx_declare_function_name): Restore red_partition register.
        (nvptx_file_end): Emit code to declare the vector reduction variables.
        (nvptx_output_red_partition): New function.
        (nvptx_expand_shared_addr): Add vector argument. Use it to handle
        large vector reductions.
        (enum nvptx_builtins): Add NVPTX_BUILTIN_VECTOR_ADDR.
        (nvptx_init_builtins): Add VECTOR_ADDR.
        (nvptx_expand_builtin): Update call to nvptx_expand_shared_addr.
        Handle nvptx_expand_shared_addr.
        (nvptx_get_shared_red_addr): Add vector argument and handle large
        vectors.
        (nvptx_goacc_reduction_setup): Add offload_attrs argument and handle
        large vectors.
        (nvptx_goacc_reduction_init): Likewise.
        (nvptx_goacc_reduction_fini): Likewise.
        (nvptx_goacc_reduction_teardown): Likewise.
        (nvptx_goacc_reduction): Update calls to nvptx_goacc_reduction_{setup,
        init,fini,teardown}.
        (nvptx_init_axis_predicate): Initialize vector_red_partition.
        (nvptx_set_current_function): Init vector_red_partition.
        * config/nvptx/nvptx.md (UNSPECV_RED_PART): New unspecv.
        (nvptx_red_partition): New insn.
        * config/nvptx/nvptx.h (struct machine_function): Add red_partition.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        PR target/85381
        * config/nvptx/nvptx.c (nvptx_process_pars): Don't emit barriers for
        empty loops.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (oacc_bcast_partition): Declare.
        (nvptx_option_override): Init oacc_bcast_partition.
        (nvptx_init_oacc_workers): New function.
        (nvptx_declare_function_name): Call nvptx_init_oacc_workers.
        (nvptx_needs_shared_bcast): New function.
        (nvptx_find_par): Generalize to enable vectors to use shared-memory
        to propagate state.
        (nvptx_shared_propagate): Initialize vector bcast partition and
        synchronization state.
        (nvptx_single):  Generalize to enable vectors to use shared-memory
        to propagate state.
        (nvptx_process_pars): Likewise.
        (nvptx_set_current_function): Initialize oacc_broadcast_partition.
        * config/nvptx/nvptx.h (struct machine_function): Add
        bcast_partition and sync_bar members.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_welformed_vector_length_p)
        (nvptx_apply_dim_limits): New function.
        (nvptx_goacc_validate_dims_1): Allow PTX_MAX_VECTOR_LENGTH larger than
        PTX_WARP_SIZE.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Move warnings to
        as late as possible.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (PTX_VECTOR_LENGTH): Remove.
        (PTX_DEFAULT_VECTOR_LENGTH, PTX_MAX_VECTOR_LENGTH): Define.
        (nvptx_goacc_validate_dims_1, nvptx_dim_limit)
        (nvptx_goacc_reduction_fini): Use PTX_DEFAULT_VECTOR_LENGTH,
        PTX_MAX_VECTOR_LENGTH and PTX_WARP_SIZE instead of PTX_VECTOR_LENGTH.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims): Add asserts.

2019-01-07  Tom de Vries  <tdevries@suse.de>

        * omp-offload.c (oacc_get_min_dim): New function.
        * omp-offload.h (oacc_get_min_dim): Declare.

2018-12-26  Mateusz B  <mateuszb@poczta.onet.pl>

        PR target/88521
        * config/i386/i386.c (function_value_ms_64): Return small sturct in
        AX_REG and float/double in FIRST_SSE_REG for 4 or 8 byte modes.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        PR tree-opt/86020
        Revert:
        2017-05-22  Jan Hubicka  <hubicka@ucw.cz>
        
        * ipa-inline.c (edge_badness): Use inlined_time instead of
        inline_summaries->get.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * opts.c (enable_fdo_optimizations): Enable
        version-loops-for-strides, loop-interchange, unrol-and-jam
        and tree-loop-distribution.
        * invoke.texi: Document newly enabled options.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi (max-inline-insns-small): New parameters.
        * ipa-inline.c (want_early_inline_function_p): simplify.
        (want_inline_small_function_p): Fix pasto from previous patch;
        use max-inline-insns-small bound.
        * params.def (max-inline-insns-small): New param.
        * ipa-fnsummary.c (analyze_function_body): Initialize time/size
        variables correctly.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * doc/invoke.texi: Document max-inline-insns-size,
        uninlined-function-insns, uninlined-function-time,
        uninlined-thunk-insns and uninlined-thunk-time.
        * params.def: Add max-inline-insns-size,
        uninlined-function-insns, uninlined-function-time,
        uninlined-thunk-insns and uninlined-thunk-time.
        * ipa-fnsummary.c (compute_fn_summary, analyze_function_body): Use
        new parameters.
        * ipa-inline.c (can_inline_edge_by_limits_p,
        want_inline_small_function_p): Use new parameters.

2019-01-05  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-fnsummary.c (analyze_function_body): Fix accounting of time.

2019-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/82564
        PR target/88620
        * expr.c (expand_assignment): For calls returning VLA structures
        if to_rtx is not a MEM, force it into a stack temporary.

        PR debug/88635
        * dwarf2out.c (const_ok_for_output_1): Reject MINUS that contains
        SYMBOL_REF, CODE_LABEL or UNSPEC in subexpressions of second argument.
        Reject PLUS that contains SYMBOL_REF, CODE_LABEL or UNSPEC in
        subexpressions of both operands.
        (mem_loc_descriptor): Handle UNSPEC if target hook acks it and all the
        subrtxes are CONSTANT_P.
        * config/i386/i386.c (ix86_const_not_ok_for_debug_p): Revert
        2018-11-09 changes.

2019-01-04  Jan Hubicka  <hubicka@ucw.cz>

        * params.def (hot-bb-count-ws-permille): Set to 990.

2019-01-04  Martin Sebor  <msebor@redhat.com>

        PR c/88546
        * attribs.c (decls_mismatched_attributes): Avoid warning for attribute
        leaf.

2019-01-04  Martin Sebor  <msebor@redhat.com>

        PR c/88363
        * doc/extend.texi (attribute alloc_align, alloc_size): Update.

2019-01-04  Jakub Jelinek  <jakub@redhat.com>

        * gdbinit.in: Turn off pagination for the skip commands, restore
        it to previous state afterwards.

2019-01-04  Jakub Jelinek  <jakub@redhat.com>

        PR target/88594
        * config/i386/i386.c (ix86_expand_divmod_libfunc): Use mode instead
        of GET_MODE (opN) as modes of the libcall arguments.

2019-01-04  Jan Beulich  <jbeulich@suse.com>

        * config/i386/sse.md
        (<avx512>_cmp<mode>3<mask_scalar_merge_name><round_saeonly_name>,
        <avx512>_cmp<mode>3<mask_scalar_merge_name>,
        <avx512>_ucmp<mode>3<mask_scalar_merge_name>,
        <avx512>_ucmp<mode>3<mask_scalar_merge_name>,
        avx512f_vmcmp<mode>3<round_saeonly_name>,
        avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
        avx512f_maskcmp<mode>3,
        <avx512>_cvt<ssemodesuffix>2mask<mode>,
        <avx512>_cvt<ssemodesuffix>2mask<mode>,
        *<avx512>_cvtmask2<ssemodesuffix><mode>,
        *<avx512>_cvtmask2<ssemodesuffix><mode>,
        <avx512>_eq<mode>3<mask_scalar_merge_name>_1,
        <avx512>_eq<mode>3<mask_scalar_merge_name>_1,
        <avx512>_gt<mode>3<mask_scalar_merge_name>,
        <avx512>_gt<mode>3<mask_scalar_merge_name>,
        <avx512>_testm<mode>3<mask_scalar_merge_name>,
        <avx512>_testnm<mode>3<mask_scalar_merge_name>,
        *<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext,
        *<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext_mask,
        *<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext,
        *<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext_mask,
        avx512cd_maskb_vec_dup<mode>,
        avx512cd_maskw_vec_dup<mode>,
        avx512dq_fpclass<mode><mask_scalar_merge_name>,
        avx512dq_vmfpclass<mode>,
        avx512vl_vpshufbitqmb<mode><mask_scalar_merge_name>): Use =k
        instead of =Yk.

2019-01-03  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/88659
        * calls.c (maybe_warn_nonstring_arg): Avoid assuming maxlen is set.

2019-01-03  Aaron Sawdey  <acsawdey@linux.ibm.com>

        * config/rs6000/rs6000-string.c (expand_block_move): Don't use
        unaligned vsx and avoid lxvd2x/stxvd2x.
        (gen_lvx_v4si_move): New function.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (MACH_VECTOR_LENGTH, MACH_MAX_WORKERS): Define.
        (init_axis_dim, nvptx_mach_max_workers, nvptx_mach_vector_length): New
        function.
        * config/nvptx/nvptx.h (struct machine_function): Add axis_dims.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (struct offload_attrs): New.
        (populate_offload_attrs): New function.  Factor mask extraction out of
        nvptx_reorg.  Add extraction of dimensions.
        (nvptx_reorg): Use populate_offload_attrs.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Add early-out
        cases for oacc_min_dims_p and routine_p.  Add asserts for
        oacc_default_dims_p and offload_region_p.

2019-01-03  Tom de Vries  <tdevries@suse.de>

        * config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): New function,
        factored out of ...
        (nvptx_goacc_validate_dims): ... here.

2019-01-03  Jan Hubicka  <hubicka@ucw.cz>

        PR tree-optimization/85574
        * tree-ssa-uncprop.c (struct equiv_hash_elt): Remove unused
        structure.
        (struct ssa_equip_hash_traits): Declare.
        (val_ssa_equiv): Use custom hash traits using operand_equal_p.

2019-01-03  Jakub Jelinek  <jakub@redhat.com>

        PR debug/88644
        * dwarf2out.c (modified_type_die): If type is equal to sizetype,
        change it to qualified_type.

2019-01-03  Jan Hubicka  <hubicka@ucw.cz>

        * ipa-utils.c (scale_ipa_profile_for_fn): Break out from ...
        (ipa_merge_profiles): ... here; do not ICE on thunks and aliases.

2019-01-02  Martin Sebor  <msebor@redhat.com>
            Jeff Law  <law@redhat.com>

        * gimple-fold.c (strlen_range_kind): Remove SRK_LENRANGE_2.
        (get_range_strlen_tree): Update appropriately.
        (get_range_strlen)
        * gimple-fold.h (get_range_strlen): Drop unused last argument.

        * gimple-fold.c (gimple_fold_builtin_strlen): Use set_strlen_range
        rather than set_range_info.
        * tree-ssa-strlen.c (set_strlen_range): Extracted from
        maybe_set_strlen_range.  Handle potentially boundary crossing
        cases more conservatively.
        (maybe_set_strlen_range): Parts refactored into set_strlen_range.
        Call set_strlen_range.
        * tree-ssa-strlen.h (set_strlen_range): Add prototype.

        PR middle-end/88663
        * gimple-fold.c (get_range_strlen): Update prototype to no longer
        need the flexp argument.
        (get_range_strlen_tree): Drop flexp argument.  Drop flexp argument
        from calls to get_range_strlen.  Update comments.  Just update
        VAL for an unterminated const char array and let the reset of the
        code handle it normally.  No longer try to set *flexp.  Adjust
        return value.
        (get_range_strlen): Update for the new get_range_strlen API.
        (get_maxval_strlen): Similarly.
        (gimple_fold_builtin_strlen): Handle update meaning of return value
        from get_range_strlen.
        * gimple-ssa-sprintf.c (get_string_length): Update for the new
        get_range_strlen API.

2019-01-02  Jan Hubicka  <hubicka@ucw.cz>

        PR lto/88130
        * varpool.c (varpool_node::ctor_useable_for_folding_p): Also return
        false at WPA time when body was removed.

2019-01-02  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/88650
        * predict.c (set_even_probabilities): Calculate probability
        remainer only when really used.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR middle-end/88651
        * tree-data-ref.c (analyze_subscript_affine_affine): Use
        widest_ints when mangling max_stmt_execution results.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/88621
        * tree-ssa-loop-im.c (gather_mem_refs_stmt): Fix pastos, avoid
        bitfields when canoncalizing.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR target/87545
        * config/i386/x86-tune-costs.h (intel_cost): Adjust
        cost of cheap SSE instruction.

2019-01-02  Richard Biener  <rguenther@suse.de>

        PR ipa/85574
        * ipa-icf.h (sem_item_optimizer::sort_congruence_split): Declare.
        * ipa-icf.c (sem_item_optimizer::sort_congruence_split): New
        function.
        (sem_item_optimizer::do_congruence_step_f): Sort the congruence
        set after UIDs before splitting them.

2019-01-01  Martin Sebor  <msebor@redhat.com>
            Jeff Law  <law@redhat.com>

        * gimple-fold.c (get_range_strlen_tree): Record if the computed
        length is optimistic.  If it is, then arrange to compute the
        conservative length as well.

        * gimple-fold.h (get_range_strlen): Update prototype.
        * builtins.c (check_access): Update call to get_range_strlen to use
        c_strlen_data pointer.   Change various variable accesses to instead
        pull data from the c_strlen_data structure.
        (check_strncat_sizes, expand_builtin_strncat): Likewise.
        * calls.c (maybe_warn_nonstring_arg): Likewise.
        * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Likewise.  Reset
        minimum length if maximum lengh is unknown.
        * gimple-ssa-sprintf.c (get_string_length): Likewise.  Drop code
        that used c_strlen, it's no longer needed.  Restructure slightly.
        (format_string): Set unlikely range appropriately.
        * gimple-fold.c (get_range_strlen): Update comments.  Fix minor
        formatting issues.
        (get_range_strlen):  Accept c_strlen_data pointer for external
        call sites as well.  Pass through to call to internal get_range_strlen.
        Adjust minlen, maxlen and maxbound as needed.
        (get_maxval_strlen): Update comments.
        (gimple_fold_builtin_strlen):  Update call to get_range_strlen
        to use c_strlen_data pointer.  Change variable accesses to instead
        use c_strlen_data data members.

        * gimple-fold.c (get_range_strlen): Update prototype.
        (get_range_strlen_tree): Update prototype.  Drop minlen/maxlen
        local variables.  Use pdata to return information to caller.
        Update calls to get_range_strlen.  Update pdata->maxbound.
        (get_range_strlen -- static version): Similarly.
        (get_range_strlen -- extern version): Update for internal
        get_range_strlen API change.  Convert to external data format.
        (get_maxval_strlen): Similarly.

2019-01-01  Jan Hubicka  <hubicka@ucw.cz>

        * coverage.c (get_coverage_counts): Use current_function_decl.
        * profile.c (read_thunk_profile): New function.
        (branch_prob): Add THUNK parameter.
        * tree-profile.c (tree_profiling): Handle thunks.
        * value-prof.c (init_node_map): Handle thunks.
        * value-prof.h (branch_prob): Upate prototype.
        (read_thunk_profile): Declare.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

        * gcc.c (process_command): Update copyright notice dates.
        * gcov-dump.c (print_version): Ditto.
        * gcov.c (print_version): Ditto.
        * gcov-tool.c (print_version): Ditto.
        * gengtype.c (create_file): Ditto.
        * doc/cpp.texi: Bump @copying's copyright year.
        * doc/cppinternals.texi: Ditto.
        * doc/gcc.texi: Ditto.
        * doc/gccint.texi: Ditto.
        * doc/gcov.texi: Ditto.
        * doc/install.texi: Ditto.
        * doc/invoke.texi: Ditto.
\f
Copyright (C) 2019 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.